Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

7 files changed, 8786 insertions, 0 deletions

diff --git a/drivers/net/ethernet/renesas/Kconfig b/drivers/net/ethernet/renesas/Kconfig
new file mode 100644
index 000000000..8008b2f45
--- /dev/null
+++ b/drivers/net/ethernet/renesas/Kconfig
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Renesas device configuration
+#
+
+config NET_VENDOR_RENESAS
+	bool "Renesas devices"
+	default y
+	help
+	  If you have a network (Ethernet) card belonging to this class, say Y.
+
+	  Note that the answer to this question doesn't directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about Renesas devices. If you say Y, you will be asked
+	  for your specific device in the following questions.
+
+if NET_VENDOR_RENESAS
+
+config SH_ETH
+	tristate "Renesas SuperH Ethernet support"
+	depends on ARCH_RENESAS || SUPERH || COMPILE_TEST
+	select CRC32
+	select MII
+	select MDIO_BITBANG
+	select PHYLIB
+	help
+	  Renesas SuperH Ethernet device driver.
+	  This driver supporting CPUs are:
+		- SH7619, SH7710, SH7712, SH7724, SH7734, SH7763, SH7757,
+		  R8A7740, R8A774x, R8A777x and R8A779x.
+
+config RAVB
+	tristate "Renesas Ethernet AVB support"
+	depends on ARCH_RENESAS || COMPILE_TEST
+	depends on PTP_1588_CLOCK_OPTIONAL
+	select CRC32
+	select MII
+	select MDIO_BITBANG
+	select PHYLIB
+	help
+	  Renesas Ethernet AVB device driver.
+	  This driver supports the following SoCs:
+		- R8A779x.
+
+endif # NET_VENDOR_RENESAS
diff --git a/drivers/net/ethernet/renesas/Makefile b/drivers/net/ethernet/renesas/Makefile
new file mode 100644
index 000000000..f21ab8c02
--- /dev/null
+++ b/drivers/net/ethernet/renesas/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the Renesas device drivers.
+#
+
+obj-$(CONFIG_SH_ETH) += sh_eth.o
+
+ravb-objs := ravb_main.o ravb_ptp.o
+
+obj-$(CONFIG_RAVB) += ravb.o
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
new file mode 100644
index 000000000..e0f8276cf
--- /dev/null
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -0,0 +1,1134 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Renesas Ethernet AVB device driver
+ *
+ * Copyright (C) 2014-2015 Renesas Electronics Corporation
+ * Copyright (C) 2015 Renesas Solutions Corp.
+ * Copyright (C) 2015-2016 Cogent Embedded, Inc. <source@cogentembedded.com>
+ *
+ * Based on the SuperH Ethernet driver
+ */
+
+#ifndef __RAVB_H__
+#define __RAVB_H__
+
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/mdio-bitbang.h>
+#include <linux/netdevice.h>
+#include <linux/phy.h>
+#include <linux/platform_device.h>
+#include <linux/ptp_clock_kernel.h>
+
+#define BE_TX_RING_SIZE	64	/* TX ring size for Best Effort */
+#define BE_RX_RING_SIZE	1024	/* RX ring size for Best Effort */
+#define NC_TX_RING_SIZE	64	/* TX ring size for Network Control */
+#define NC_RX_RING_SIZE	64	/* RX ring size for Network Control */
+#define BE_TX_RING_MIN	64
+#define BE_RX_RING_MIN	64
+#define BE_TX_RING_MAX	1024
+#define BE_RX_RING_MAX	2048
+
+#define PKT_BUF_SZ	1538
+
+/* Driver's parameters */
+#define RAVB_ALIGN	128
+
+/* Hardware time stamp */
+#define RAVB_TXTSTAMP_VALID	0x00000001	/* TX timestamp valid */
+#define RAVB_TXTSTAMP_ENABLED	0x00000010	/* Enable TX timestamping */
+
+#define RAVB_RXTSTAMP_VALID	0x00000001	/* RX timestamp valid */
+#define RAVB_RXTSTAMP_TYPE	0x00000006	/* RX type mask */
+#define RAVB_RXTSTAMP_TYPE_V2_L2_EVENT 0x00000002
+#define RAVB_RXTSTAMP_TYPE_ALL	0x00000006
+#define RAVB_RXTSTAMP_ENABLED	0x00000010	/* Enable RX timestamping */
+
+enum ravb_reg {
+	/* AVB-DMAC registers */
+	CCC	= 0x0000,
+	DBAT	= 0x0004,
+	DLR	= 0x0008,
+	CSR	= 0x000C,
+	CDAR0	= 0x0010,
+	CDAR1	= 0x0014,
+	CDAR2	= 0x0018,
+	CDAR3	= 0x001C,
+	CDAR4	= 0x0020,
+	CDAR5	= 0x0024,
+	CDAR6	= 0x0028,
+	CDAR7	= 0x002C,
+	CDAR8	= 0x0030,
+	CDAR9	= 0x0034,
+	CDAR10	= 0x0038,
+	CDAR11	= 0x003C,
+	CDAR12	= 0x0040,
+	CDAR13	= 0x0044,
+	CDAR14	= 0x0048,
+	CDAR15	= 0x004C,
+	CDAR16	= 0x0050,
+	CDAR17	= 0x0054,
+	CDAR18	= 0x0058,
+	CDAR19	= 0x005C,
+	CDAR20	= 0x0060,
+	CDAR21	= 0x0064,
+	ESR	= 0x0088,
+	APSR	= 0x008C,	/* R-Car Gen3 only */
+	RCR	= 0x0090,
+	RQC0	= 0x0094,
+	RQC1	= 0x0098,
+	RQC2	= 0x009C,
+	RQC3	= 0x00A0,
+	RQC4	= 0x00A4,
+	RPC	= 0x00B0,
+	RTC	= 0x00B4,	/* R-Car Gen3 and RZ/G2L only */
+	UFCW	= 0x00BC,
+	UFCS	= 0x00C0,
+	UFCV0	= 0x00C4,
+	UFCV1	= 0x00C8,
+	UFCV2	= 0x00CC,
+	UFCV3	= 0x00D0,
+	UFCV4	= 0x00D4,
+	UFCD0	= 0x00E0,
+	UFCD1	= 0x00E4,
+	UFCD2	= 0x00E8,
+	UFCD3	= 0x00EC,
+	UFCD4	= 0x00F0,
+	SFO	= 0x00FC,
+	SFP0	= 0x0100,
+	SFP1	= 0x0104,
+	SFP2	= 0x0108,
+	SFP3	= 0x010C,
+	SFP4	= 0x0110,
+	SFP5	= 0x0114,
+	SFP6	= 0x0118,
+	SFP7	= 0x011C,
+	SFP8	= 0x0120,
+	SFP9	= 0x0124,
+	SFP10	= 0x0128,
+	SFP11	= 0x012C,
+	SFP12	= 0x0130,
+	SFP13	= 0x0134,
+	SFP14	= 0x0138,
+	SFP15	= 0x013C,
+	SFP16	= 0x0140,
+	SFP17	= 0x0144,
+	SFP18	= 0x0148,
+	SFP19	= 0x014C,
+	SFP20	= 0x0150,
+	SFP21	= 0x0154,
+	SFP22	= 0x0158,
+	SFP23	= 0x015C,
+	SFP24	= 0x0160,
+	SFP25	= 0x0164,
+	SFP26	= 0x0168,
+	SFP27	= 0x016C,
+	SFP28	= 0x0170,
+	SFP29	= 0x0174,
+	SFP30	= 0x0178,
+	SFP31	= 0x017C,
+	SFM0	= 0x01C0,
+	SFM1	= 0x01C4,
+	TGC	= 0x0300,
+	TCCR	= 0x0304,
+	TSR	= 0x0308,
+	TFA0	= 0x0310,
+	TFA1	= 0x0314,
+	TFA2	= 0x0318,
+	CIVR0	= 0x0320,
+	CIVR1	= 0x0324,
+	CDVR0	= 0x0328,
+	CDVR1	= 0x032C,
+	CUL0	= 0x0330,
+	CUL1	= 0x0334,
+	CLL0	= 0x0338,
+	CLL1	= 0x033C,
+	DIC	= 0x0350,
+	DIS	= 0x0354,
+	EIC	= 0x0358,
+	EIS	= 0x035C,
+	RIC0	= 0x0360,
+	RIS0	= 0x0364,
+	RIC1	= 0x0368,
+	RIS1	= 0x036C,
+	RIC2	= 0x0370,
+	RIS2	= 0x0374,
+	TIC	= 0x0378,
+	TIS	= 0x037C,
+	ISS	= 0x0380,
+	CIE	= 0x0384,	/* R-Car Gen3 only */
+	GCCR	= 0x0390,
+	GMTT	= 0x0394,
+	GPTC	= 0x0398,
+	GTI	= 0x039C,
+	GTO0	= 0x03A0,
+	GTO1	= 0x03A4,
+	GTO2	= 0x03A8,
+	GIC	= 0x03AC,
+	GIS	= 0x03B0,
+	GCPT	= 0x03B4,	/* Documented for R-Car Gen3 only */
+	GCT0	= 0x03B8,
+	GCT1	= 0x03BC,
+	GCT2	= 0x03C0,
+	GIE	= 0x03CC,	/* R-Car Gen3 only */
+	GID	= 0x03D0,	/* R-Car Gen3 only */
+	DIL	= 0x0440,	/* R-Car Gen3 only */
+	RIE0	= 0x0460,	/* R-Car Gen3 only */
+	RID0	= 0x0464,	/* R-Car Gen3 only */
+	RIE2	= 0x0470,	/* R-Car Gen3 only */
+	RID2	= 0x0474,	/* R-Car Gen3 only */
+	TIE	= 0x0478,	/* R-Car Gen3 only */
+	TID	= 0x047c,	/* R-Car Gen3 only */
+
+	/* E-MAC registers */
+	ECMR	= 0x0500,
+	RFLR	= 0x0508,
+	ECSR	= 0x0510,
+	ECSIPR	= 0x0518,
+	PIR	= 0x0520,
+	PSR	= 0x0528,
+	PIPR	= 0x052c,
+	CXR31	= 0x0530,	/* RZ/G2L only */
+	CXR35	= 0x0540,	/* RZ/G2L only */
+	MPR	= 0x0558,
+	PFTCR	= 0x055c,
+	PFRCR	= 0x0560,
+	GECMR	= 0x05b0,
+	MAHR	= 0x05c0,
+	MALR	= 0x05c8,
+	TROCR	= 0x0700,	/* R-Car Gen3 and RZ/G2L only */
+	CXR41	= 0x0708,	/* RZ/G2L only */
+	CXR42	= 0x0710,	/* RZ/G2L only */
+	CEFCR	= 0x0740,
+	FRECR	= 0x0748,
+	TSFRCR	= 0x0750,
+	TLFRCR	= 0x0758,
+	RFCR	= 0x0760,
+	MAFCR	= 0x0778,
+	CSR0    = 0x0800,	/* RZ/G2L only */
+};
+
+
+/* Register bits of the Ethernet AVB */
+/* CCC */
+enum CCC_BIT {
+	CCC_OPC		= 0x00000003,
+	CCC_OPC_RESET	= 0x00000000,
+	CCC_OPC_CONFIG	= 0x00000001,
+	CCC_OPC_OPERATION = 0x00000002,
+	CCC_GAC		= 0x00000080,
+	CCC_DTSR	= 0x00000100,
+	CCC_CSEL	= 0x00030000,
+	CCC_CSEL_HPB	= 0x00010000,
+	CCC_CSEL_ETH_TX	= 0x00020000,
+	CCC_CSEL_GMII_REF = 0x00030000,
+	CCC_LBME	= 0x01000000,
+};
+
+/* CSR */
+enum CSR_BIT {
+	CSR_OPS		= 0x0000000F,
+	CSR_OPS_RESET	= 0x00000001,
+	CSR_OPS_CONFIG	= 0x00000002,
+	CSR_OPS_OPERATION = 0x00000004,
+	CSR_OPS_STANDBY	= 0x00000008,	/* Documented for R-Car Gen3 only */
+	CSR_DTS		= 0x00000100,
+	CSR_TPO0	= 0x00010000,
+	CSR_TPO1	= 0x00020000,
+	CSR_TPO2	= 0x00040000,
+	CSR_TPO3	= 0x00080000,
+	CSR_RPO		= 0x00100000,
+};
+
+/* ESR */
+enum ESR_BIT {
+	ESR_EQN		= 0x0000001F,
+	ESR_ET		= 0x00000F00,
+	ESR_EIL		= 0x00001000,
+};
+
+/* APSR (R-Car Gen3 only) */
+enum APSR_BIT {
+	APSR_MEMS	= 0x00000002,	/* Undocumented */
+	APSR_CMSW	= 0x00000010,
+	APSR_RDM	= 0x00002000,
+	APSR_TDM	= 0x00004000,
+};
+
+/* RCR */
+enum RCR_BIT {
+	RCR_EFFS	= 0x00000001,
+	RCR_ENCF	= 0x00000002,
+	RCR_ESF		= 0x0000000C,
+	RCR_ETS0	= 0x00000010,
+	RCR_ETS2	= 0x00000020,
+	RCR_RFCL	= 0x1FFF0000,
+};
+
+/* RQC0/1/2/3/4 */
+enum RQC_BIT {
+	RQC_RSM0	= 0x00000003,
+	RQC_UFCC0	= 0x00000030,
+	RQC_RSM1	= 0x00000300,
+	RQC_UFCC1	= 0x00003000,
+	RQC_RSM2	= 0x00030000,
+	RQC_UFCC2	= 0x00300000,
+	RQC_RSM3	= 0x03000000,
+	RQC_UFCC3	= 0x30000000,
+};
+
+/* RPC */
+enum RPC_BIT {
+	RPC_PCNT	= 0x00000700,
+	RPC_DCNT	= 0x00FF0000,
+};
+
+/* UFCW */
+enum UFCW_BIT {
+	UFCW_WL0	= 0x0000003F,
+	UFCW_WL1	= 0x00003F00,
+	UFCW_WL2	= 0x003F0000,
+	UFCW_WL3	= 0x3F000000,
+};
+
+/* UFCS */
+enum UFCS_BIT {
+	UFCS_SL0	= 0x0000003F,
+	UFCS_SL1	= 0x00003F00,
+	UFCS_SL2	= 0x003F0000,
+	UFCS_SL3	= 0x3F000000,
+};
+
+/* UFCV0/1/2/3/4 */
+enum UFCV_BIT {
+	UFCV_CV0	= 0x0000003F,
+	UFCV_CV1	= 0x00003F00,
+	UFCV_CV2	= 0x003F0000,
+	UFCV_CV3	= 0x3F000000,
+};
+
+/* UFCD0/1/2/3/4 */
+enum UFCD_BIT {
+	UFCD_DV0	= 0x0000003F,
+	UFCD_DV1	= 0x00003F00,
+	UFCD_DV2	= 0x003F0000,
+	UFCD_DV3	= 0x3F000000,
+};
+
+/* SFO */
+enum SFO_BIT {
+	SFO_FBP		= 0x0000003F,
+};
+
+/* RTC */
+enum RTC_BIT {
+	RTC_MFL0	= 0x00000FFF,
+	RTC_MFL1	= 0x0FFF0000,
+};
+
+/* TGC */
+enum TGC_BIT {
+	TGC_TSM0	= 0x00000001,
+	TGC_TSM1	= 0x00000002,
+	TGC_TSM2	= 0x00000004,
+	TGC_TSM3	= 0x00000008,
+	TGC_TQP		= 0x00000030,
+	TGC_TQP_NONAVB	= 0x00000000,
+	TGC_TQP_AVBMODE1 = 0x00000010,
+	TGC_TQP_AVBMODE2 = 0x00000030,
+	TGC_TBD0	= 0x00000300,
+	TGC_TBD1	= 0x00003000,
+	TGC_TBD2	= 0x00030000,
+	TGC_TBD3	= 0x00300000,
+};
+
+/* TCCR */
+enum TCCR_BIT {
+	TCCR_TSRQ0	= 0x00000001,
+	TCCR_TSRQ1	= 0x00000002,
+	TCCR_TSRQ2	= 0x00000004,
+	TCCR_TSRQ3	= 0x00000008,
+	TCCR_TFEN	= 0x00000100,
+	TCCR_TFR	= 0x00000200,
+};
+
+/* TSR */
+enum TSR_BIT {
+	TSR_CCS0	= 0x00000003,
+	TSR_CCS1	= 0x0000000C,
+	TSR_TFFL	= 0x00000700,
+};
+
+/* TFA2 */
+enum TFA2_BIT {
+	TFA2_TSV	= 0x0000FFFF,
+	TFA2_TST	= 0x03FF0000,
+};
+
+/* DIC */
+enum DIC_BIT {
+	DIC_DPE1	= 0x00000002,
+	DIC_DPE2	= 0x00000004,
+	DIC_DPE3	= 0x00000008,
+	DIC_DPE4	= 0x00000010,
+	DIC_DPE5	= 0x00000020,
+	DIC_DPE6	= 0x00000040,
+	DIC_DPE7	= 0x00000080,
+	DIC_DPE8	= 0x00000100,
+	DIC_DPE9	= 0x00000200,
+	DIC_DPE10	= 0x00000400,
+	DIC_DPE11	= 0x00000800,
+	DIC_DPE12	= 0x00001000,
+	DIC_DPE13	= 0x00002000,
+	DIC_DPE14	= 0x00004000,
+	DIC_DPE15	= 0x00008000,
+};
+
+/* DIS */
+enum DIS_BIT {
+	DIS_DPF1	= 0x00000002,
+	DIS_DPF2	= 0x00000004,
+	DIS_DPF3	= 0x00000008,
+	DIS_DPF4	= 0x00000010,
+	DIS_DPF5	= 0x00000020,
+	DIS_DPF6	= 0x00000040,
+	DIS_DPF7	= 0x00000080,
+	DIS_DPF8	= 0x00000100,
+	DIS_DPF9	= 0x00000200,
+	DIS_DPF10	= 0x00000400,
+	DIS_DPF11	= 0x00000800,
+	DIS_DPF12	= 0x00001000,
+	DIS_DPF13	= 0x00002000,
+	DIS_DPF14	= 0x00004000,
+	DIS_DPF15	= 0x00008000,
+};
+
+/* EIC */
+enum EIC_BIT {
+	EIC_MREE	= 0x00000001,
+	EIC_MTEE	= 0x00000002,
+	EIC_QEE		= 0x00000004,
+	EIC_SEE		= 0x00000008,
+	EIC_CLLE0	= 0x00000010,
+	EIC_CLLE1	= 0x00000020,
+	EIC_CULE0	= 0x00000040,
+	EIC_CULE1	= 0x00000080,
+	EIC_TFFE	= 0x00000100,
+};
+
+/* EIS */
+enum EIS_BIT {
+	EIS_MREF	= 0x00000001,
+	EIS_MTEF	= 0x00000002,
+	EIS_QEF		= 0x00000004,
+	EIS_SEF		= 0x00000008,
+	EIS_CLLF0	= 0x00000010,
+	EIS_CLLF1	= 0x00000020,
+	EIS_CULF0	= 0x00000040,
+	EIS_CULF1	= 0x00000080,
+	EIS_TFFF	= 0x00000100,
+	EIS_QFS		= 0x00010000,
+	EIS_RESERVED	= (GENMASK(31, 17) | GENMASK(15, 11)),
+};
+
+/* RIC0 */
+enum RIC0_BIT {
+	RIC0_FRE0	= 0x00000001,
+	RIC0_FRE1	= 0x00000002,
+	RIC0_FRE2	= 0x00000004,
+	RIC0_FRE3	= 0x00000008,
+	RIC0_FRE4	= 0x00000010,
+	RIC0_FRE5	= 0x00000020,
+	RIC0_FRE6	= 0x00000040,
+	RIC0_FRE7	= 0x00000080,
+	RIC0_FRE8	= 0x00000100,
+	RIC0_FRE9	= 0x00000200,
+	RIC0_FRE10	= 0x00000400,
+	RIC0_FRE11	= 0x00000800,
+	RIC0_FRE12	= 0x00001000,
+	RIC0_FRE13	= 0x00002000,
+	RIC0_FRE14	= 0x00004000,
+	RIC0_FRE15	= 0x00008000,
+	RIC0_FRE16	= 0x00010000,
+	RIC0_FRE17	= 0x00020000,
+};
+
+/* RIC0 */
+enum RIS0_BIT {
+	RIS0_FRF0	= 0x00000001,
+	RIS0_FRF1	= 0x00000002,
+	RIS0_FRF2	= 0x00000004,
+	RIS0_FRF3	= 0x00000008,
+	RIS0_FRF4	= 0x00000010,
+	RIS0_FRF5	= 0x00000020,
+	RIS0_FRF6	= 0x00000040,
+	RIS0_FRF7	= 0x00000080,
+	RIS0_FRF8	= 0x00000100,
+	RIS0_FRF9	= 0x00000200,
+	RIS0_FRF10	= 0x00000400,
+	RIS0_FRF11	= 0x00000800,
+	RIS0_FRF12	= 0x00001000,
+	RIS0_FRF13	= 0x00002000,
+	RIS0_FRF14	= 0x00004000,
+	RIS0_FRF15	= 0x00008000,
+	RIS0_FRF16	= 0x00010000,
+	RIS0_FRF17	= 0x00020000,
+	RIS0_RESERVED	= GENMASK(31, 18),
+};
+
+/* RIC1 */
+enum RIC1_BIT {
+	RIC1_RFWE	= 0x80000000,
+};
+
+/* RIS1 */
+enum RIS1_BIT {
+	RIS1_RFWF	= 0x80000000,
+};
+
+/* RIC2 */
+enum RIC2_BIT {
+	RIC2_QFE0	= 0x00000001,
+	RIC2_QFE1	= 0x00000002,
+	RIC2_QFE2	= 0x00000004,
+	RIC2_QFE3	= 0x00000008,
+	RIC2_QFE4	= 0x00000010,
+	RIC2_QFE5	= 0x00000020,
+	RIC2_QFE6	= 0x00000040,
+	RIC2_QFE7	= 0x00000080,
+	RIC2_QFE8	= 0x00000100,
+	RIC2_QFE9	= 0x00000200,
+	RIC2_QFE10	= 0x00000400,
+	RIC2_QFE11	= 0x00000800,
+	RIC2_QFE12	= 0x00001000,
+	RIC2_QFE13	= 0x00002000,
+	RIC2_QFE14	= 0x00004000,
+	RIC2_QFE15	= 0x00008000,
+	RIC2_QFE16	= 0x00010000,
+	RIC2_QFE17	= 0x00020000,
+	RIC2_RFFE	= 0x80000000,
+};
+
+/* RIS2 */
+enum RIS2_BIT {
+	RIS2_QFF0	= 0x00000001,
+	RIS2_QFF1	= 0x00000002,
+	RIS2_QFF2	= 0x00000004,
+	RIS2_QFF3	= 0x00000008,
+	RIS2_QFF4	= 0x00000010,
+	RIS2_QFF5	= 0x00000020,
+	RIS2_QFF6	= 0x00000040,
+	RIS2_QFF7	= 0x00000080,
+	RIS2_QFF8	= 0x00000100,
+	RIS2_QFF9	= 0x00000200,
+	RIS2_QFF10	= 0x00000400,
+	RIS2_QFF11	= 0x00000800,
+	RIS2_QFF12	= 0x00001000,
+	RIS2_QFF13	= 0x00002000,
+	RIS2_QFF14	= 0x00004000,
+	RIS2_QFF15	= 0x00008000,
+	RIS2_QFF16	= 0x00010000,
+	RIS2_QFF17	= 0x00020000,
+	RIS2_RFFF	= 0x80000000,
+	RIS2_RESERVED	= GENMASK(30, 18),
+};
+
+/* TIC */
+enum TIC_BIT {
+	TIC_FTE0	= 0x00000001,	/* Documented for R-Car Gen3 only */
+	TIC_FTE1	= 0x00000002,	/* Documented for R-Car Gen3 only */
+	TIC_TFUE	= 0x00000100,
+	TIC_TFWE	= 0x00000200,
+};
+
+/* TIS */
+enum TIS_BIT {
+	TIS_FTF0	= 0x00000001,	/* Documented for R-Car Gen3 only */
+	TIS_FTF1	= 0x00000002,	/* Documented for R-Car Gen3 only */
+	TIS_TFUF	= 0x00000100,
+	TIS_TFWF	= 0x00000200,
+	TIS_RESERVED	= (GENMASK(31, 20) | GENMASK(15, 12) | GENMASK(7, 4))
+};
+
+/* ISS */
+enum ISS_BIT {
+	ISS_FRS		= 0x00000001,	/* Documented for R-Car Gen3 only */
+	ISS_FTS		= 0x00000004,	/* Documented for R-Car Gen3 only */
+	ISS_ES		= 0x00000040,
+	ISS_MS		= 0x00000080,
+	ISS_TFUS	= 0x00000100,
+	ISS_TFWS	= 0x00000200,
+	ISS_RFWS	= 0x00001000,
+	ISS_CGIS	= 0x00002000,
+	ISS_DPS1	= 0x00020000,
+	ISS_DPS2	= 0x00040000,
+	ISS_DPS3	= 0x00080000,
+	ISS_DPS4	= 0x00100000,
+	ISS_DPS5	= 0x00200000,
+	ISS_DPS6	= 0x00400000,
+	ISS_DPS7	= 0x00800000,
+	ISS_DPS8	= 0x01000000,
+	ISS_DPS9	= 0x02000000,
+	ISS_DPS10	= 0x04000000,
+	ISS_DPS11	= 0x08000000,
+	ISS_DPS12	= 0x10000000,
+	ISS_DPS13	= 0x20000000,
+	ISS_DPS14	= 0x40000000,
+	ISS_DPS15	= 0x80000000,
+};
+
+/* CIE (R-Car Gen3 only) */
+enum CIE_BIT {
+	CIE_CRIE	= 0x00000001,
+	CIE_CTIE	= 0x00000100,
+	CIE_RQFM	= 0x00010000,
+	CIE_CL0M	= 0x00020000,
+	CIE_RFWL	= 0x00040000,
+	CIE_RFFL	= 0x00080000,
+};
+
+/* GCCR */
+enum GCCR_BIT {
+	GCCR_TCR	= 0x00000003,
+	GCCR_TCR_NOREQ	= 0x00000000, /* No request */
+	GCCR_TCR_RESET	= 0x00000001, /* gPTP/AVTP presentation timer reset */
+	GCCR_TCR_CAPTURE = 0x00000003, /* Capture value set in GCCR.TCSS */
+	GCCR_LTO	= 0x00000004,
+	GCCR_LTI	= 0x00000008,
+	GCCR_LPTC	= 0x00000010,
+	GCCR_LMTT	= 0x00000020,
+	GCCR_TCSS	= 0x00000300,
+	GCCR_TCSS_GPTP	= 0x00000000,	/* gPTP timer value */
+	GCCR_TCSS_ADJGPTP = 0x00000100, /* Adjusted gPTP timer value */
+	GCCR_TCSS_AVTP	= 0x00000200,	/* AVTP presentation time value */
+};
+
+/* GTI */
+enum GTI_BIT {
+	GTI_TIV		= 0x0FFFFFFF,
+};
+
+#define GTI_TIV_MAX	GTI_TIV
+#define GTI_TIV_MIN	0x20
+
+/* GIC */
+enum GIC_BIT {
+	GIC_PTCE	= 0x00000001,	/* Documented for R-Car Gen3 only */
+	GIC_PTME	= 0x00000004,
+};
+
+/* GIS */
+enum GIS_BIT {
+	GIS_PTCF	= 0x00000001,	/* Documented for R-Car Gen3 only */
+	GIS_PTMF	= 0x00000004,
+	GIS_RESERVED	= GENMASK(15, 10),
+};
+
+/* GIE (R-Car Gen3 only) */
+enum GIE_BIT {
+	GIE_PTCS	= 0x00000001,
+	GIE_PTOS	= 0x00000002,
+	GIE_PTMS0	= 0x00000004,
+	GIE_PTMS1	= 0x00000008,
+	GIE_PTMS2	= 0x00000010,
+	GIE_PTMS3	= 0x00000020,
+	GIE_PTMS4	= 0x00000040,
+	GIE_PTMS5	= 0x00000080,
+	GIE_PTMS6	= 0x00000100,
+	GIE_PTMS7	= 0x00000200,
+	GIE_ATCS0	= 0x00010000,
+	GIE_ATCS1	= 0x00020000,
+	GIE_ATCS2	= 0x00040000,
+	GIE_ATCS3	= 0x00080000,
+	GIE_ATCS4	= 0x00100000,
+	GIE_ATCS5	= 0x00200000,
+	GIE_ATCS6	= 0x00400000,
+	GIE_ATCS7	= 0x00800000,
+	GIE_ATCS8	= 0x01000000,
+	GIE_ATCS9	= 0x02000000,
+	GIE_ATCS10	= 0x04000000,
+	GIE_ATCS11	= 0x08000000,
+	GIE_ATCS12	= 0x10000000,
+	GIE_ATCS13	= 0x20000000,
+	GIE_ATCS14	= 0x40000000,
+	GIE_ATCS15	= 0x80000000,
+};
+
+/* GID (R-Car Gen3 only) */
+enum GID_BIT {
+	GID_PTCD	= 0x00000001,
+	GID_PTOD	= 0x00000002,
+	GID_PTMD0	= 0x00000004,
+	GID_PTMD1	= 0x00000008,
+	GID_PTMD2	= 0x00000010,
+	GID_PTMD3	= 0x00000020,
+	GID_PTMD4	= 0x00000040,
+	GID_PTMD5	= 0x00000080,
+	GID_PTMD6	= 0x00000100,
+	GID_PTMD7	= 0x00000200,
+	GID_ATCD0	= 0x00010000,
+	GID_ATCD1	= 0x00020000,
+	GID_ATCD2	= 0x00040000,
+	GID_ATCD3	= 0x00080000,
+	GID_ATCD4	= 0x00100000,
+	GID_ATCD5	= 0x00200000,
+	GID_ATCD6	= 0x00400000,
+	GID_ATCD7	= 0x00800000,
+	GID_ATCD8	= 0x01000000,
+	GID_ATCD9	= 0x02000000,
+	GID_ATCD10	= 0x04000000,
+	GID_ATCD11	= 0x08000000,
+	GID_ATCD12	= 0x10000000,
+	GID_ATCD13	= 0x20000000,
+	GID_ATCD14	= 0x40000000,
+	GID_ATCD15	= 0x80000000,
+};
+
+/* RIE0 (R-Car Gen3 only) */
+enum RIE0_BIT {
+	RIE0_FRS0	= 0x00000001,
+	RIE0_FRS1	= 0x00000002,
+	RIE0_FRS2	= 0x00000004,
+	RIE0_FRS3	= 0x00000008,
+	RIE0_FRS4	= 0x00000010,
+	RIE0_FRS5	= 0x00000020,
+	RIE0_FRS6	= 0x00000040,
+	RIE0_FRS7	= 0x00000080,
+	RIE0_FRS8	= 0x00000100,
+	RIE0_FRS9	= 0x00000200,
+	RIE0_FRS10	= 0x00000400,
+	RIE0_FRS11	= 0x00000800,
+	RIE0_FRS12	= 0x00001000,
+	RIE0_FRS13	= 0x00002000,
+	RIE0_FRS14	= 0x00004000,
+	RIE0_FRS15	= 0x00008000,
+	RIE0_FRS16	= 0x00010000,
+	RIE0_FRS17	= 0x00020000,
+};
+
+/* RID0 (R-Car Gen3 only) */
+enum RID0_BIT {
+	RID0_FRD0	= 0x00000001,
+	RID0_FRD1	= 0x00000002,
+	RID0_FRD2	= 0x00000004,
+	RID0_FRD3	= 0x00000008,
+	RID0_FRD4	= 0x00000010,
+	RID0_FRD5	= 0x00000020,
+	RID0_FRD6	= 0x00000040,
+	RID0_FRD7	= 0x00000080,
+	RID0_FRD8	= 0x00000100,
+	RID0_FRD9	= 0x00000200,
+	RID0_FRD10	= 0x00000400,
+	RID0_FRD11	= 0x00000800,
+	RID0_FRD12	= 0x00001000,
+	RID0_FRD13	= 0x00002000,
+	RID0_FRD14	= 0x00004000,
+	RID0_FRD15	= 0x00008000,
+	RID0_FRD16	= 0x00010000,
+	RID0_FRD17	= 0x00020000,
+};
+
+/* RIE2 (R-Car Gen3 only) */
+enum RIE2_BIT {
+	RIE2_QFS0	= 0x00000001,
+	RIE2_QFS1	= 0x00000002,
+	RIE2_QFS2	= 0x00000004,
+	RIE2_QFS3	= 0x00000008,
+	RIE2_QFS4	= 0x00000010,
+	RIE2_QFS5	= 0x00000020,
+	RIE2_QFS6	= 0x00000040,
+	RIE2_QFS7	= 0x00000080,
+	RIE2_QFS8	= 0x00000100,
+	RIE2_QFS9	= 0x00000200,
+	RIE2_QFS10	= 0x00000400,
+	RIE2_QFS11	= 0x00000800,
+	RIE2_QFS12	= 0x00001000,
+	RIE2_QFS13	= 0x00002000,
+	RIE2_QFS14	= 0x00004000,
+	RIE2_QFS15	= 0x00008000,
+	RIE2_QFS16	= 0x00010000,
+	RIE2_QFS17	= 0x00020000,
+	RIE2_RFFS	= 0x80000000,
+};
+
+/* RID2 (R-Car Gen3 only) */
+enum RID2_BIT {
+	RID2_QFD0	= 0x00000001,
+	RID2_QFD1	= 0x00000002,
+	RID2_QFD2	= 0x00000004,
+	RID2_QFD3	= 0x00000008,
+	RID2_QFD4	= 0x00000010,
+	RID2_QFD5	= 0x00000020,
+	RID2_QFD6	= 0x00000040,
+	RID2_QFD7	= 0x00000080,
+	RID2_QFD8	= 0x00000100,
+	RID2_QFD9	= 0x00000200,
+	RID2_QFD10	= 0x00000400,
+	RID2_QFD11	= 0x00000800,
+	RID2_QFD12	= 0x00001000,
+	RID2_QFD13	= 0x00002000,
+	RID2_QFD14	= 0x00004000,
+	RID2_QFD15	= 0x00008000,
+	RID2_QFD16	= 0x00010000,
+	RID2_QFD17	= 0x00020000,
+	RID2_RFFD	= 0x80000000,
+};
+
+/* TIE (R-Car Gen3 only) */
+enum TIE_BIT {
+	TIE_FTS0	= 0x00000001,
+	TIE_FTS1	= 0x00000002,
+	TIE_FTS2	= 0x00000004,
+	TIE_FTS3	= 0x00000008,
+	TIE_TFUS	= 0x00000100,
+	TIE_TFWS	= 0x00000200,
+	TIE_MFUS	= 0x00000400,
+	TIE_MFWS	= 0x00000800,
+	TIE_TDPS0	= 0x00010000,
+	TIE_TDPS1	= 0x00020000,
+	TIE_TDPS2	= 0x00040000,
+	TIE_TDPS3	= 0x00080000,
+};
+
+/* TID (R-Car Gen3 only) */
+enum TID_BIT {
+	TID_FTD0	= 0x00000001,
+	TID_FTD1	= 0x00000002,
+	TID_FTD2	= 0x00000004,
+	TID_FTD3	= 0x00000008,
+	TID_TFUD	= 0x00000100,
+	TID_TFWD	= 0x00000200,
+	TID_MFUD	= 0x00000400,
+	TID_MFWD	= 0x00000800,
+	TID_TDPD0	= 0x00010000,
+	TID_TDPD1	= 0x00020000,
+	TID_TDPD2	= 0x00040000,
+	TID_TDPD3	= 0x00080000,
+};
+
+/* ECMR */
+enum ECMR_BIT {
+	ECMR_PRM	= 0x00000001,
+	ECMR_DM		= 0x00000002,
+	ECMR_TE		= 0x00000020,
+	ECMR_RE		= 0x00000040,
+	ECMR_MPDE	= 0x00000200,
+	ECMR_TXF	= 0x00010000,	/* Documented for R-Car Gen3 only */
+	ECMR_RXF	= 0x00020000,
+	ECMR_PFR	= 0x00040000,
+	ECMR_ZPF	= 0x00080000,	/* Documented for R-Car Gen3 and RZ/G2L */
+	ECMR_RZPF	= 0x00100000,
+	ECMR_DPAD	= 0x00200000,
+	ECMR_RCSC	= 0x00800000,
+	ECMR_RCPT	= 0x02000000,	/* Documented for RZ/G2L only */
+	ECMR_TRCCM	= 0x04000000,
+};
+
+/* ECSR */
+enum ECSR_BIT {
+	ECSR_ICD	= 0x00000001,
+	ECSR_MPD	= 0x00000002,
+	ECSR_LCHNG	= 0x00000004,
+	ECSR_PHYI	= 0x00000008,
+	ECSR_PFRI	= 0x00000010,	/* Documented for R-Car Gen3 and RZ/G2L */
+};
+
+/* ECSIPR */
+enum ECSIPR_BIT {
+	ECSIPR_ICDIP	= 0x00000001,
+	ECSIPR_MPDIP	= 0x00000002,
+	ECSIPR_LCHNGIP	= 0x00000004,
+};
+
+/* PIR */
+enum PIR_BIT {
+	PIR_MDC		= 0x00000001,
+	PIR_MMD		= 0x00000002,
+	PIR_MDO		= 0x00000004,
+	PIR_MDI		= 0x00000008,
+};
+
+/* PSR */
+enum PSR_BIT {
+	PSR_LMON	= 0x00000001,
+};
+
+/* PIPR */
+enum PIPR_BIT {
+	PIPR_PHYIP	= 0x00000001,
+};
+
+/* MPR */
+enum MPR_BIT {
+	MPR_MP		= 0x0000ffff,
+};
+
+/* GECMR */
+enum GECMR_BIT {
+	GECMR_SPEED		= 0x00000001,
+	GECMR_SPEED_100		= 0x00000000,
+	GECMR_SPEED_1000	= 0x00000001,
+	GBETH_GECMR_SPEED	= 0x00000030,
+	GBETH_GECMR_SPEED_10	= 0x00000000,
+	GBETH_GECMR_SPEED_100	= 0x00000010,
+	GBETH_GECMR_SPEED_1000	= 0x00000020,
+};
+
+/* The Ethernet AVB descriptor definitions. */
+struct ravb_desc {
+	__le16 ds;	/* Descriptor size */
+	u8 cc;		/* Content control MSBs (reserved) */
+	u8 die_dt;	/* Descriptor interrupt enable and type */
+	__le32 dptr;	/* Descriptor pointer */
+};
+
+#define DPTR_ALIGN	4	/* Required descriptor pointer alignment */
+
+enum DIE_DT {
+	/* Frame data */
+	DT_FMID		= 0x40,
+	DT_FSTART	= 0x50,
+	DT_FEND		= 0x60,
+	DT_FSINGLE	= 0x70,
+	/* Chain control */
+	DT_LINK		= 0x80,
+	DT_LINKFIX	= 0x90,
+	DT_EOS		= 0xa0,
+	/* HW/SW arbitration */
+	DT_FEMPTY	= 0xc0,
+	DT_FEMPTY_IS	= 0xd0,
+	DT_FEMPTY_IC	= 0xe0,
+	DT_FEMPTY_ND	= 0xf0,
+	DT_LEMPTY	= 0x20,
+	DT_EEMPTY	= 0x30,
+};
+
+struct ravb_rx_desc {
+	__le16 ds_cc;	/* Descriptor size and content control LSBs */
+	u8 msc;		/* MAC status code */
+	u8 die_dt;	/* Descriptor interrupt enable and type */
+	__le32 dptr;	/* Descpriptor pointer */
+};
+
+struct ravb_ex_rx_desc {
+	__le16 ds_cc;	/* Descriptor size and content control lower bits */
+	u8 msc;		/* MAC status code */
+	u8 die_dt;	/* Descriptor interrupt enable and type */
+	__le32 dptr;	/* Descpriptor pointer */
+	__le32 ts_n;	/* Timestampe nsec */
+	__le32 ts_sl;	/* Timestamp low */
+	__le16 ts_sh;	/* Timestamp high */
+	__le16 res;	/* Reserved bits */
+};
+
+enum RX_DS_CC_BIT {
+	RX_DS		= 0x0fff, /* Data size */
+	RX_TR		= 0x1000, /* Truncation indication */
+	RX_EI		= 0x2000, /* Error indication */
+	RX_PS		= 0xc000, /* Padding selection */
+};
+
+/* E-MAC status code */
+enum MSC_BIT {
+	MSC_CRC		= 0x01, /* Frame CRC error */
+	MSC_RFE		= 0x02, /* Frame reception error (flagged by PHY) */
+	MSC_RTSF	= 0x04, /* Frame length error (frame too short) */
+	MSC_RTLF	= 0x08, /* Frame length error (frame too long) */
+	MSC_FRE		= 0x10, /* Fraction error (not a multiple of 8 bits) */
+	MSC_CRL		= 0x20, /* Carrier lost */
+	MSC_CEEF	= 0x40, /* Carrier extension error */
+	MSC_MC		= 0x80, /* Multicast frame reception */
+};
+
+struct ravb_tx_desc {
+	__le16 ds_tagl;	/* Descriptor size and frame tag LSBs */
+	u8 tagh_tsr;	/* Frame tag MSBs and timestamp storage request bit */
+	u8 die_dt;	/* Descriptor interrupt enable and type */
+	__le32 dptr;	/* Descpriptor pointer */
+};
+
+enum TX_DS_TAGL_BIT {
+	TX_DS		= 0x0fff, /* Data size */
+	TX_TAGL		= 0xf000, /* Frame tag LSBs */
+};
+
+enum TX_TAGH_TSR_BIT {
+	TX_TAGH		= 0x3f, /* Frame tag MSBs */
+	TX_TSR		= 0x40, /* Timestamp storage request */
+};
+enum RAVB_QUEUE {
+	RAVB_BE = 0,	/* Best Effort Queue */
+	RAVB_NC,	/* Network Control Queue */
+};
+
+enum CXR31_BIT {
+	CXR31_SEL_LINK0	= 0x00000001,
+	CXR31_SEL_LINK1	= 0x00000008,
+};
+
+enum CXR35_BIT {
+	CXR35_SEL_XMII		= 0x00000003,
+	CXR35_SEL_XMII_RGMII	= 0x00000000,
+	CXR35_SEL_XMII_MII	= 0x00000002,
+	CXR35_HALFCYC_CLKSW	= 0xffff0000,
+};
+
+enum CSR0_BIT {
+	CSR0_TPE	= 0x00000010,
+	CSR0_RPE	= 0x00000020,
+};
+
+#define DBAT_ENTRY_NUM	22
+#define RX_QUEUE_OFFSET	4
+#define NUM_RX_QUEUE	2
+#define NUM_TX_QUEUE	2
+
+#define RX_BUF_SZ	(2048 - ETH_FCS_LEN + sizeof(__sum16))
+
+#define GBETH_RX_BUFF_MAX 8192
+#define GBETH_RX_DESC_DATA_SIZE 4080
+
+struct ravb_tstamp_skb {
+	struct list_head list;
+	struct sk_buff *skb;
+	u16 tag;
+};
+
+struct ravb_ptp_perout {
+	u32 target;
+	u32 period;
+};
+
+#define N_EXT_TS	1
+#define N_PER_OUT	1
+
+struct ravb_ptp {
+	struct ptp_clock *clock;
+	struct ptp_clock_info info;
+	u32 default_addend;
+	u32 current_addend;
+	int extts[N_EXT_TS];
+	struct ravb_ptp_perout perout[N_PER_OUT];
+};
+
+struct ravb_hw_info {
+	void (*rx_ring_free)(struct net_device *ndev, int q);
+	void (*rx_ring_format)(struct net_device *ndev, int q);
+	void *(*alloc_rx_desc)(struct net_device *ndev, int q);
+	bool (*receive)(struct net_device *ndev, int *quota, int q);
+	void (*set_rate)(struct net_device *ndev);
+	int (*set_feature)(struct net_device *ndev, netdev_features_t features);
+	int (*dmac_init)(struct net_device *ndev);
+	void (*emac_init)(struct net_device *ndev);
+	const char (*gstrings_stats)[ETH_GSTRING_LEN];
+	size_t gstrings_size;
+	netdev_features_t net_hw_features;
+	netdev_features_t net_features;
+	int stats_len;
+	size_t max_rx_len;
+	u32 tccr_mask;
+	u32 rx_max_buf_size;
+	unsigned aligned_tx: 1;
+
+	/* hardware features */
+	unsigned internal_delay:1;	/* AVB-DMAC has internal delays */
+	unsigned tx_counters:1;		/* E-MAC has TX counters */
+	unsigned carrier_counters:1;	/* E-MAC has carrier counters */
+	unsigned multi_irqs:1;		/* AVB-DMAC and E-MAC has multiple irqs */
+	unsigned irq_en_dis:1;		/* Has separate irq enable and disable regs */
+	unsigned err_mgmt_irqs:1;	/* Line1 (Err) and Line2 (Mgmt) irqs are separate */
+	unsigned gptp:1;		/* AVB-DMAC has gPTP support */
+	unsigned ccc_gac:1;		/* AVB-DMAC has gPTP support active in config mode */
+	unsigned gptp_ref_clk:1;	/* gPTP has separate reference clock */
+	unsigned nc_queues:1;		/* AVB-DMAC has RX and TX NC queues */
+	unsigned magic_pkt:1;		/* E-MAC supports magic packet detection */
+	unsigned half_duplex:1;		/* E-MAC supports half duplex mode */
+};
+
+struct ravb_private {
+	struct net_device *ndev;
+	struct platform_device *pdev;
+	void __iomem *addr;
+	struct clk *clk;
+	struct clk *refclk;
+	struct clk *gptp_clk;
+	struct mdiobb_ctrl mdiobb;
+	u32 num_rx_ring[NUM_RX_QUEUE];
+	u32 num_tx_ring[NUM_TX_QUEUE];
+	u32 desc_bat_size;
+	dma_addr_t desc_bat_dma;
+	struct ravb_desc *desc_bat;
+	dma_addr_t rx_desc_dma[NUM_RX_QUEUE];
+	dma_addr_t tx_desc_dma[NUM_TX_QUEUE];
+	struct ravb_rx_desc *gbeth_rx_ring;
+	struct ravb_ex_rx_desc *rx_ring[NUM_RX_QUEUE];
+	struct ravb_tx_desc *tx_ring[NUM_TX_QUEUE];
+	void *tx_align[NUM_TX_QUEUE];
+	struct sk_buff *rx_1st_skb;
+	struct sk_buff **rx_skb[NUM_RX_QUEUE];
+	struct sk_buff **tx_skb[NUM_TX_QUEUE];
+	u32 rx_over_errors;
+	u32 rx_fifo_errors;
+	struct net_device_stats stats[NUM_RX_QUEUE];
+	u32 tstamp_tx_ctrl;
+	u32 tstamp_rx_ctrl;
+	struct list_head ts_skb_list;
+	u32 ts_skb_tag;
+	struct ravb_ptp ptp;
+	spinlock_t lock;		/* Register access lock */
+	u32 cur_rx[NUM_RX_QUEUE];	/* Consumer ring indices */
+	u32 dirty_rx[NUM_RX_QUEUE];	/* Producer ring indices */
+	u32 cur_tx[NUM_TX_QUEUE];
+	u32 dirty_tx[NUM_TX_QUEUE];
+	struct napi_struct napi[NUM_RX_QUEUE];
+	struct work_struct work;
+	/* MII transceiver section. */
+	struct mii_bus *mii_bus;	/* MDIO bus control */
+	int link;
+	phy_interface_t phy_interface;
+	int msg_enable;
+	int speed;
+	int emac_irq;
+	int erra_irq;
+	int mgmta_irq;
+	int rx_irqs[NUM_RX_QUEUE];
+	int tx_irqs[NUM_TX_QUEUE];
+
+	unsigned no_avb_link:1;
+	unsigned avb_link_active_low:1;
+	unsigned wol_enabled:1;
+	unsigned rxcidm:1;		/* RX Clock Internal Delay Mode */
+	unsigned txcidm:1;		/* TX Clock Internal Delay Mode */
+	unsigned rgmii_override:1;	/* Deprecated rgmii-*id behavior */
+	unsigned int num_tx_desc;	/* TX descriptors per packet */
+
+	int duplex;
+
+	const struct ravb_hw_info *info;
+	struct reset_control *rstc;
+};
+
+static inline u32 ravb_read(struct net_device *ndev, enum ravb_reg reg)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+
+	return ioread32(priv->addr + reg);
+}
+
+static inline void ravb_write(struct net_device *ndev, u32 data,
+			      enum ravb_reg reg)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+
+	iowrite32(data, priv->addr + reg);
+}
+
+void ravb_modify(struct net_device *ndev, enum ravb_reg reg, u32 clear,
+		 u32 set);
+int ravb_wait(struct net_device *ndev, enum ravb_reg reg, u32 mask, u32 value);
+
+void ravb_ptp_interrupt(struct net_device *ndev);
+void ravb_ptp_init(struct net_device *ndev, struct platform_device *pdev);
+void ravb_ptp_stop(struct net_device *ndev);
+
+#endif	/* #ifndef __RAVB_H__ */
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
new file mode 100644
index 000000000..e7b700062
--- /dev/null
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -0,0 +1,3117 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Renesas Ethernet AVB device driver
+ *
+ * Copyright (C) 2014-2019 Renesas Electronics Corporation
+ * Copyright (C) 2015 Renesas Solutions Corp.
+ * Copyright (C) 2015-2016 Cogent Embedded, Inc. <source@cogentembedded.com>
+ *
+ * Based on the SuperH Ethernet driver
+ */
+
+#include <linux/cache.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/err.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/if_vlan.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/net_tstamp.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/of_mdio.h>
+#include <linux/of_net.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/sys_soc.h>
+#include <linux/reset.h>
+#include <linux/math64.h>
+
+#include "ravb.h"
+
+#define RAVB_DEF_MSG_ENABLE \
+		(NETIF_MSG_LINK	  | \
+		 NETIF_MSG_TIMER  | \
+		 NETIF_MSG_RX_ERR | \
+		 NETIF_MSG_TX_ERR)
+
+static const char *ravb_rx_irqs[NUM_RX_QUEUE] = {
+	"ch0", /* RAVB_BE */
+	"ch1", /* RAVB_NC */
+};
+
+static const char *ravb_tx_irqs[NUM_TX_QUEUE] = {
+	"ch18", /* RAVB_BE */
+	"ch19", /* RAVB_NC */
+};
+
+void ravb_modify(struct net_device *ndev, enum ravb_reg reg, u32 clear,
+		 u32 set)
+{
+	ravb_write(ndev, (ravb_read(ndev, reg) & ~clear) | set, reg);
+}
+
+int ravb_wait(struct net_device *ndev, enum ravb_reg reg, u32 mask, u32 value)
+{
+	int i;
+
+	for (i = 0; i < 10000; i++) {
+		if ((ravb_read(ndev, reg) & mask) == value)
+			return 0;
+		udelay(10);
+	}
+	return -ETIMEDOUT;
+}
+
+static int ravb_set_opmode(struct net_device *ndev, u32 opmode)
+{
+	u32 csr_ops = 1U << (opmode & CCC_OPC);
+	u32 ccc_mask = CCC_OPC;
+	int error;
+
+	/* If gPTP active in config mode is supported it needs to be configured
+	 * along with CSEL and operating mode in the same access. This is a
+	 * hardware limitation.
+	 */
+	if (opmode & CCC_GAC)
+		ccc_mask |= CCC_GAC | CCC_CSEL;
+
+	/* Set operating mode */
+	ravb_modify(ndev, CCC, ccc_mask, opmode);
+	/* Check if the operating mode is changed to the requested one */
+	error = ravb_wait(ndev, CSR, CSR_OPS, csr_ops);
+	if (error) {
+		netdev_err(ndev, "failed to switch device to requested mode (%u)\n",
+			   opmode & CCC_OPC);
+	}
+
+	return error;
+}
+
+static void ravb_set_rate_gbeth(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+
+	switch (priv->speed) {
+	case 10:                /* 10BASE */
+		ravb_write(ndev, GBETH_GECMR_SPEED_10, GECMR);
+		break;
+	case 100:               /* 100BASE */
+		ravb_write(ndev, GBETH_GECMR_SPEED_100, GECMR);
+		break;
+	case 1000:              /* 1000BASE */
+		ravb_write(ndev, GBETH_GECMR_SPEED_1000, GECMR);
+		break;
+	}
+}
+
+static void ravb_set_rate_rcar(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+
+	switch (priv->speed) {
+	case 100:		/* 100BASE */
+		ravb_write(ndev, GECMR_SPEED_100, GECMR);
+		break;
+	case 1000:		/* 1000BASE */
+		ravb_write(ndev, GECMR_SPEED_1000, GECMR);
+		break;
+	}
+}
+
+static void ravb_set_buffer_align(struct sk_buff *skb)
+{
+	u32 reserve = (unsigned long)skb->data & (RAVB_ALIGN - 1);
+
+	if (reserve)
+		skb_reserve(skb, RAVB_ALIGN - reserve);
+}
+
+/* Get MAC address from the MAC address registers
+ *
+ * Ethernet AVB device doesn't have ROM for MAC address.
+ * This function gets the MAC address that was used by a bootloader.
+ */
+static void ravb_read_mac_address(struct device_node *np,
+				  struct net_device *ndev)
+{
+	int ret;
+
+	ret = of_get_ethdev_address(np, ndev);
+	if (ret) {
+		u32 mahr = ravb_read(ndev, MAHR);
+		u32 malr = ravb_read(ndev, MALR);
+		u8 addr[ETH_ALEN];
+
+		addr[0] = (mahr >> 24) & 0xFF;
+		addr[1] = (mahr >> 16) & 0xFF;
+		addr[2] = (mahr >>  8) & 0xFF;
+		addr[3] = (mahr >>  0) & 0xFF;
+		addr[4] = (malr >>  8) & 0xFF;
+		addr[5] = (malr >>  0) & 0xFF;
+		eth_hw_addr_set(ndev, addr);
+	}
+}
+
+static void ravb_mdio_ctrl(struct mdiobb_ctrl *ctrl, u32 mask, int set)
+{
+	struct ravb_private *priv = container_of(ctrl, struct ravb_private,
+						 mdiobb);
+
+	ravb_modify(priv->ndev, PIR, mask, set ? mask : 0);
+}
+
+/* MDC pin control */
+static void ravb_set_mdc(struct mdiobb_ctrl *ctrl, int level)
+{
+	ravb_mdio_ctrl(ctrl, PIR_MDC, level);
+}
+
+/* Data I/O pin control */
+static void ravb_set_mdio_dir(struct mdiobb_ctrl *ctrl, int output)
+{
+	ravb_mdio_ctrl(ctrl, PIR_MMD, output);
+}
+
+/* Set data bit */
+static void ravb_set_mdio_data(struct mdiobb_ctrl *ctrl, int value)
+{
+	ravb_mdio_ctrl(ctrl, PIR_MDO, value);
+}
+
+/* Get data bit */
+static int ravb_get_mdio_data(struct mdiobb_ctrl *ctrl)
+{
+	struct ravb_private *priv = container_of(ctrl, struct ravb_private,
+						 mdiobb);
+
+	return (ravb_read(priv->ndev, PIR) & PIR_MDI) != 0;
+}
+
+/* MDIO bus control struct */
+static const struct mdiobb_ops bb_ops = {
+	.owner = THIS_MODULE,
+	.set_mdc = ravb_set_mdc,
+	.set_mdio_dir = ravb_set_mdio_dir,
+	.set_mdio_data = ravb_set_mdio_data,
+	.get_mdio_data = ravb_get_mdio_data,
+};
+
+/* Free TX skb function for AVB-IP */
+static int ravb_tx_free(struct net_device *ndev, int q, bool free_txed_only)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	struct net_device_stats *stats = &priv->stats[q];
+	unsigned int num_tx_desc = priv->num_tx_desc;
+	struct ravb_tx_desc *desc;
+	unsigned int entry;
+	int free_num = 0;
+	u32 size;
+
+	for (; priv->cur_tx[q] - priv->dirty_tx[q] > 0; priv->dirty_tx[q]++) {
+		bool txed;
+
+		entry = priv->dirty_tx[q] % (priv->num_tx_ring[q] *
+					     num_tx_desc);
+		desc = &priv->tx_ring[q][entry];
+		txed = desc->die_dt == DT_FEMPTY;
+		if (free_txed_only && !txed)
+			break;
+		/* Descriptor type must be checked before all other reads */
+		dma_rmb();
+		size = le16_to_cpu(desc->ds_tagl) & TX_DS;
+		/* Free the original skb. */
+		if (priv->tx_skb[q][entry / num_tx_desc]) {
+			dma_unmap_single(ndev->dev.parent, le32_to_cpu(desc->dptr),
+					 size, DMA_TO_DEVICE);
+			/* Last packet descriptor? */
+			if (entry % num_tx_desc == num_tx_desc - 1) {
+				entry /= num_tx_desc;
+				dev_kfree_skb_any(priv->tx_skb[q][entry]);
+				priv->tx_skb[q][entry] = NULL;
+				if (txed)
+					stats->tx_packets++;
+			}
+			free_num++;
+		}
+		if (txed)
+			stats->tx_bytes += size;
+		desc->die_dt = DT_EEMPTY;
+	}
+	return free_num;
+}
+
+static void ravb_rx_ring_free_gbeth(struct net_device *ndev, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	unsigned int ring_size;
+	unsigned int i;
+
+	if (!priv->gbeth_rx_ring)
+		return;
+
+	for (i = 0; i < priv->num_rx_ring[q]; i++) {
+		struct ravb_rx_desc *desc = &priv->gbeth_rx_ring[i];
+
+		if (!dma_mapping_error(ndev->dev.parent,
+				       le32_to_cpu(desc->dptr)))
+			dma_unmap_single(ndev->dev.parent,
+					 le32_to_cpu(desc->dptr),
+					 GBETH_RX_BUFF_MAX,
+					 DMA_FROM_DEVICE);
+	}
+	ring_size = sizeof(struct ravb_rx_desc) * (priv->num_rx_ring[q] + 1);
+	dma_free_coherent(ndev->dev.parent, ring_size, priv->gbeth_rx_ring,
+			  priv->rx_desc_dma[q]);
+	priv->gbeth_rx_ring = NULL;
+}
+
+static void ravb_rx_ring_free_rcar(struct net_device *ndev, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	unsigned int ring_size;
+	unsigned int i;
+
+	if (!priv->rx_ring[q])
+		return;
+
+	for (i = 0; i < priv->num_rx_ring[q]; i++) {
+		struct ravb_ex_rx_desc *desc = &priv->rx_ring[q][i];
+
+		if (!dma_mapping_error(ndev->dev.parent,
+				       le32_to_cpu(desc->dptr)))
+			dma_unmap_single(ndev->dev.parent,
+					 le32_to_cpu(desc->dptr),
+					 RX_BUF_SZ,
+					 DMA_FROM_DEVICE);
+	}
+	ring_size = sizeof(struct ravb_ex_rx_desc) *
+		    (priv->num_rx_ring[q] + 1);
+	dma_free_coherent(ndev->dev.parent, ring_size, priv->rx_ring[q],
+			  priv->rx_desc_dma[q]);
+	priv->rx_ring[q] = NULL;
+}
+
+/* Free skb's and DMA buffers for Ethernet AVB */
+static void ravb_ring_free(struct net_device *ndev, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	unsigned int num_tx_desc = priv->num_tx_desc;
+	unsigned int ring_size;
+	unsigned int i;
+
+	info->rx_ring_free(ndev, q);
+
+	if (priv->tx_ring[q]) {
+		ravb_tx_free(ndev, q, false);
+
+		ring_size = sizeof(struct ravb_tx_desc) *
+			    (priv->num_tx_ring[q] * num_tx_desc + 1);
+		dma_free_coherent(ndev->dev.parent, ring_size, priv->tx_ring[q],
+				  priv->tx_desc_dma[q]);
+		priv->tx_ring[q] = NULL;
+	}
+
+	/* Free RX skb ringbuffer */
+	if (priv->rx_skb[q]) {
+		for (i = 0; i < priv->num_rx_ring[q]; i++)
+			dev_kfree_skb(priv->rx_skb[q][i]);
+	}
+	kfree(priv->rx_skb[q]);
+	priv->rx_skb[q] = NULL;
+
+	/* Free aligned TX buffers */
+	kfree(priv->tx_align[q]);
+	priv->tx_align[q] = NULL;
+
+	/* Free TX skb ringbuffer.
+	 * SKBs are freed by ravb_tx_free() call above.
+	 */
+	kfree(priv->tx_skb[q]);
+	priv->tx_skb[q] = NULL;
+}
+
+static void ravb_rx_ring_format_gbeth(struct net_device *ndev, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	struct ravb_rx_desc *rx_desc;
+	unsigned int rx_ring_size;
+	dma_addr_t dma_addr;
+	unsigned int i;
+
+	rx_ring_size = sizeof(*rx_desc) * priv->num_rx_ring[q];
+	memset(priv->gbeth_rx_ring, 0, rx_ring_size);
+	/* Build RX ring buffer */
+	for (i = 0; i < priv->num_rx_ring[q]; i++) {
+		/* RX descriptor */
+		rx_desc = &priv->gbeth_rx_ring[i];
+		rx_desc->ds_cc = cpu_to_le16(GBETH_RX_DESC_DATA_SIZE);
+		dma_addr = dma_map_single(ndev->dev.parent, priv->rx_skb[q][i]->data,
+					  GBETH_RX_BUFF_MAX,
+					  DMA_FROM_DEVICE);
+		/* We just set the data size to 0 for a failed mapping which
+		 * should prevent DMA from happening...
+		 */
+		if (dma_mapping_error(ndev->dev.parent, dma_addr))
+			rx_desc->ds_cc = cpu_to_le16(0);
+		rx_desc->dptr = cpu_to_le32(dma_addr);
+		rx_desc->die_dt = DT_FEMPTY;
+	}
+	rx_desc = &priv->gbeth_rx_ring[i];
+	rx_desc->dptr = cpu_to_le32((u32)priv->rx_desc_dma[q]);
+	rx_desc->die_dt = DT_LINKFIX; /* type */
+}
+
+static void ravb_rx_ring_format_rcar(struct net_device *ndev, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	struct ravb_ex_rx_desc *rx_desc;
+	unsigned int rx_ring_size = sizeof(*rx_desc) * priv->num_rx_ring[q];
+	dma_addr_t dma_addr;
+	unsigned int i;
+
+	memset(priv->rx_ring[q], 0, rx_ring_size);
+	/* Build RX ring buffer */
+	for (i = 0; i < priv->num_rx_ring[q]; i++) {
+		/* RX descriptor */
+		rx_desc = &priv->rx_ring[q][i];
+		rx_desc->ds_cc = cpu_to_le16(RX_BUF_SZ);
+		dma_addr = dma_map_single(ndev->dev.parent, priv->rx_skb[q][i]->data,
+					  RX_BUF_SZ,
+					  DMA_FROM_DEVICE);
+		/* We just set the data size to 0 for a failed mapping which
+		 * should prevent DMA from happening...
+		 */
+		if (dma_mapping_error(ndev->dev.parent, dma_addr))
+			rx_desc->ds_cc = cpu_to_le16(0);
+		rx_desc->dptr = cpu_to_le32(dma_addr);
+		rx_desc->die_dt = DT_FEMPTY;
+	}
+	rx_desc = &priv->rx_ring[q][i];
+	rx_desc->dptr = cpu_to_le32((u32)priv->rx_desc_dma[q]);
+	rx_desc->die_dt = DT_LINKFIX; /* type */
+}
+
+/* Format skb and descriptor buffer for Ethernet AVB */
+static void ravb_ring_format(struct net_device *ndev, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	unsigned int num_tx_desc = priv->num_tx_desc;
+	struct ravb_tx_desc *tx_desc;
+	struct ravb_desc *desc;
+	unsigned int tx_ring_size = sizeof(*tx_desc) * priv->num_tx_ring[q] *
+				    num_tx_desc;
+	unsigned int i;
+
+	priv->cur_rx[q] = 0;
+	priv->cur_tx[q] = 0;
+	priv->dirty_rx[q] = 0;
+	priv->dirty_tx[q] = 0;
+
+	info->rx_ring_format(ndev, q);
+
+	memset(priv->tx_ring[q], 0, tx_ring_size);
+	/* Build TX ring buffer */
+	for (i = 0, tx_desc = priv->tx_ring[q]; i < priv->num_tx_ring[q];
+	     i++, tx_desc++) {
+		tx_desc->die_dt = DT_EEMPTY;
+		if (num_tx_desc > 1) {
+			tx_desc++;
+			tx_desc->die_dt = DT_EEMPTY;
+		}
+	}
+	tx_desc->dptr = cpu_to_le32((u32)priv->tx_desc_dma[q]);
+	tx_desc->die_dt = DT_LINKFIX; /* type */
+
+	/* RX descriptor base address for best effort */
+	desc = &priv->desc_bat[RX_QUEUE_OFFSET + q];
+	desc->die_dt = DT_LINKFIX; /* type */
+	desc->dptr = cpu_to_le32((u32)priv->rx_desc_dma[q]);
+
+	/* TX descriptor base address for best effort */
+	desc = &priv->desc_bat[q];
+	desc->die_dt = DT_LINKFIX; /* type */
+	desc->dptr = cpu_to_le32((u32)priv->tx_desc_dma[q]);
+}
+
+static void *ravb_alloc_rx_desc_gbeth(struct net_device *ndev, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	unsigned int ring_size;
+
+	ring_size = sizeof(struct ravb_rx_desc) * (priv->num_rx_ring[q] + 1);
+
+	priv->gbeth_rx_ring = dma_alloc_coherent(ndev->dev.parent, ring_size,
+						 &priv->rx_desc_dma[q],
+						 GFP_KERNEL);
+	return priv->gbeth_rx_ring;
+}
+
+static void *ravb_alloc_rx_desc_rcar(struct net_device *ndev, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	unsigned int ring_size;
+
+	ring_size = sizeof(struct ravb_ex_rx_desc) * (priv->num_rx_ring[q] + 1);
+
+	priv->rx_ring[q] = dma_alloc_coherent(ndev->dev.parent, ring_size,
+					      &priv->rx_desc_dma[q],
+					      GFP_KERNEL);
+	return priv->rx_ring[q];
+}
+
+/* Init skb and descriptor buffer for Ethernet AVB */
+static int ravb_ring_init(struct net_device *ndev, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	unsigned int num_tx_desc = priv->num_tx_desc;
+	unsigned int ring_size;
+	struct sk_buff *skb;
+	unsigned int i;
+
+	/* Allocate RX and TX skb rings */
+	priv->rx_skb[q] = kcalloc(priv->num_rx_ring[q],
+				  sizeof(*priv->rx_skb[q]), GFP_KERNEL);
+	priv->tx_skb[q] = kcalloc(priv->num_tx_ring[q],
+				  sizeof(*priv->tx_skb[q]), GFP_KERNEL);
+	if (!priv->rx_skb[q] || !priv->tx_skb[q])
+		goto error;
+
+	for (i = 0; i < priv->num_rx_ring[q]; i++) {
+		skb = __netdev_alloc_skb(ndev, info->max_rx_len, GFP_KERNEL);
+		if (!skb)
+			goto error;
+		ravb_set_buffer_align(skb);
+		priv->rx_skb[q][i] = skb;
+	}
+
+	if (num_tx_desc > 1) {
+		/* Allocate rings for the aligned buffers */
+		priv->tx_align[q] = kmalloc(DPTR_ALIGN * priv->num_tx_ring[q] +
+					    DPTR_ALIGN - 1, GFP_KERNEL);
+		if (!priv->tx_align[q])
+			goto error;
+	}
+
+	/* Allocate all RX descriptors. */
+	if (!info->alloc_rx_desc(ndev, q))
+		goto error;
+
+	priv->dirty_rx[q] = 0;
+
+	/* Allocate all TX descriptors. */
+	ring_size = sizeof(struct ravb_tx_desc) *
+		    (priv->num_tx_ring[q] * num_tx_desc + 1);
+	priv->tx_ring[q] = dma_alloc_coherent(ndev->dev.parent, ring_size,
+					      &priv->tx_desc_dma[q],
+					      GFP_KERNEL);
+	if (!priv->tx_ring[q])
+		goto error;
+
+	return 0;
+
+error:
+	ravb_ring_free(ndev, q);
+
+	return -ENOMEM;
+}
+
+static void ravb_emac_init_gbeth(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+
+	if (priv->phy_interface == PHY_INTERFACE_MODE_MII) {
+		ravb_write(ndev, (1000 << 16) | CXR35_SEL_XMII_MII, CXR35);
+		ravb_modify(ndev, CXR31, CXR31_SEL_LINK0 | CXR31_SEL_LINK1, 0);
+	} else {
+		ravb_write(ndev, (1000 << 16) | CXR35_SEL_XMII_RGMII, CXR35);
+		ravb_modify(ndev, CXR31, CXR31_SEL_LINK0 | CXR31_SEL_LINK1,
+			    CXR31_SEL_LINK0);
+	}
+
+	/* Receive frame limit set register */
+	ravb_write(ndev, GBETH_RX_BUFF_MAX + ETH_FCS_LEN, RFLR);
+
+	/* EMAC Mode: PAUSE prohibition; Duplex; TX; RX; CRC Pass Through */
+	ravb_write(ndev, ECMR_ZPF | ((priv->duplex > 0) ? ECMR_DM : 0) |
+			 ECMR_TE | ECMR_RE | ECMR_RCPT |
+			 ECMR_TXF | ECMR_RXF, ECMR);
+
+	ravb_set_rate_gbeth(ndev);
+
+	/* Set MAC address */
+	ravb_write(ndev,
+		   (ndev->dev_addr[0] << 24) | (ndev->dev_addr[1] << 16) |
+		   (ndev->dev_addr[2] << 8)  | (ndev->dev_addr[3]), MAHR);
+	ravb_write(ndev, (ndev->dev_addr[4] << 8)  | (ndev->dev_addr[5]), MALR);
+
+	/* E-MAC status register clear */
+	ravb_write(ndev, ECSR_ICD | ECSR_LCHNG | ECSR_PFRI, ECSR);
+	ravb_write(ndev, CSR0_TPE | CSR0_RPE, CSR0);
+
+	/* E-MAC interrupt enable register */
+	ravb_write(ndev, ECSIPR_ICDIP, ECSIPR);
+}
+
+static void ravb_emac_init_rcar(struct net_device *ndev)
+{
+	/* Receive frame limit set register */
+	ravb_write(ndev, ndev->mtu + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN, RFLR);
+
+	/* EMAC Mode: PAUSE prohibition; Duplex; RX Checksum; TX; RX */
+	ravb_write(ndev, ECMR_ZPF | ECMR_DM |
+		   (ndev->features & NETIF_F_RXCSUM ? ECMR_RCSC : 0) |
+		   ECMR_TE | ECMR_RE, ECMR);
+
+	ravb_set_rate_rcar(ndev);
+
+	/* Set MAC address */
+	ravb_write(ndev,
+		   (ndev->dev_addr[0] << 24) | (ndev->dev_addr[1] << 16) |
+		   (ndev->dev_addr[2] << 8)  | (ndev->dev_addr[3]), MAHR);
+	ravb_write(ndev,
+		   (ndev->dev_addr[4] << 8)  | (ndev->dev_addr[5]), MALR);
+
+	/* E-MAC status register clear */
+	ravb_write(ndev, ECSR_ICD | ECSR_MPD, ECSR);
+
+	/* E-MAC interrupt enable register */
+	ravb_write(ndev, ECSIPR_ICDIP | ECSIPR_MPDIP | ECSIPR_LCHNGIP, ECSIPR);
+}
+
+/* E-MAC init function */
+static void ravb_emac_init(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+
+	info->emac_init(ndev);
+}
+
+static int ravb_dmac_init_gbeth(struct net_device *ndev)
+{
+	int error;
+
+	error = ravb_ring_init(ndev, RAVB_BE);
+	if (error)
+		return error;
+
+	/* Descriptor format */
+	ravb_ring_format(ndev, RAVB_BE);
+
+	/* Set DMAC RX */
+	ravb_write(ndev, 0x60000000, RCR);
+
+	/* Set Max Frame Length (RTC) */
+	ravb_write(ndev, 0x7ffc0000 | GBETH_RX_BUFF_MAX, RTC);
+
+	/* Set FIFO size */
+	ravb_write(ndev, 0x00222200, TGC);
+
+	ravb_write(ndev, 0, TCCR);
+
+	/* Frame receive */
+	ravb_write(ndev, RIC0_FRE0, RIC0);
+	/* Disable FIFO full warning */
+	ravb_write(ndev, 0x0, RIC1);
+	/* Receive FIFO full error, descriptor empty */
+	ravb_write(ndev, RIC2_QFE0 | RIC2_RFFE, RIC2);
+
+	ravb_write(ndev, TIC_FTE0, TIC);
+
+	return 0;
+}
+
+static int ravb_dmac_init_rcar(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	int error;
+
+	error = ravb_ring_init(ndev, RAVB_BE);
+	if (error)
+		return error;
+	error = ravb_ring_init(ndev, RAVB_NC);
+	if (error) {
+		ravb_ring_free(ndev, RAVB_BE);
+		return error;
+	}
+
+	/* Descriptor format */
+	ravb_ring_format(ndev, RAVB_BE);
+	ravb_ring_format(ndev, RAVB_NC);
+
+	/* Set AVB RX */
+	ravb_write(ndev,
+		   RCR_EFFS | RCR_ENCF | RCR_ETS0 | RCR_ESF | 0x18000000, RCR);
+
+	/* Set FIFO size */
+	ravb_write(ndev, TGC_TQP_AVBMODE1 | 0x00112200, TGC);
+
+	/* Timestamp enable */
+	ravb_write(ndev, TCCR_TFEN, TCCR);
+
+	/* Interrupt init: */
+	if (info->multi_irqs) {
+		/* Clear DIL.DPLx */
+		ravb_write(ndev, 0, DIL);
+		/* Set queue specific interrupt */
+		ravb_write(ndev, CIE_CRIE | CIE_CTIE | CIE_CL0M, CIE);
+	}
+	/* Frame receive */
+	ravb_write(ndev, RIC0_FRE0 | RIC0_FRE1, RIC0);
+	/* Disable FIFO full warning */
+	ravb_write(ndev, 0, RIC1);
+	/* Receive FIFO full error, descriptor empty */
+	ravb_write(ndev, RIC2_QFE0 | RIC2_QFE1 | RIC2_RFFE, RIC2);
+	/* Frame transmitted, timestamp FIFO updated */
+	ravb_write(ndev, TIC_FTE0 | TIC_FTE1 | TIC_TFUE, TIC);
+
+	return 0;
+}
+
+/* Device init function for Ethernet AVB */
+static int ravb_dmac_init(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	int error;
+
+	/* Set CONFIG mode */
+	error = ravb_set_opmode(ndev, CCC_OPC_CONFIG);
+	if (error)
+		return error;
+
+	error = info->dmac_init(ndev);
+	if (error)
+		return error;
+
+	/* Setting the control will start the AVB-DMAC process. */
+	return ravb_set_opmode(ndev, CCC_OPC_OPERATION);
+}
+
+static void ravb_get_tx_tstamp(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	struct ravb_tstamp_skb *ts_skb, *ts_skb2;
+	struct skb_shared_hwtstamps shhwtstamps;
+	struct sk_buff *skb;
+	struct timespec64 ts;
+	u16 tag, tfa_tag;
+	int count;
+	u32 tfa2;
+
+	count = (ravb_read(ndev, TSR) & TSR_TFFL) >> 8;
+	while (count--) {
+		tfa2 = ravb_read(ndev, TFA2);
+		tfa_tag = (tfa2 & TFA2_TST) >> 16;
+		ts.tv_nsec = (u64)ravb_read(ndev, TFA0);
+		ts.tv_sec = ((u64)(tfa2 & TFA2_TSV) << 32) |
+			    ravb_read(ndev, TFA1);
+		memset(&shhwtstamps, 0, sizeof(shhwtstamps));
+		shhwtstamps.hwtstamp = timespec64_to_ktime(ts);
+		list_for_each_entry_safe(ts_skb, ts_skb2, &priv->ts_skb_list,
+					 list) {
+			skb = ts_skb->skb;
+			tag = ts_skb->tag;
+			list_del(&ts_skb->list);
+			kfree(ts_skb);
+			if (tag == tfa_tag) {
+				skb_tstamp_tx(skb, &shhwtstamps);
+				dev_consume_skb_any(skb);
+				break;
+			} else {
+				dev_kfree_skb_any(skb);
+			}
+		}
+		ravb_modify(ndev, TCCR, TCCR_TFR, TCCR_TFR);
+	}
+}
+
+static void ravb_rx_csum(struct sk_buff *skb)
+{
+	u8 *hw_csum;
+
+	/* The hardware checksum is contained in sizeof(__sum16) (2) bytes
+	 * appended to packet data
+	 */
+	if (unlikely(skb->len < sizeof(__sum16)))
+		return;
+	hw_csum = skb_tail_pointer(skb) - sizeof(__sum16);
+	skb->csum = csum_unfold((__force __sum16)get_unaligned_le16(hw_csum));
+	skb->ip_summed = CHECKSUM_COMPLETE;
+	skb_trim(skb, skb->len - sizeof(__sum16));
+}
+
+static struct sk_buff *ravb_get_skb_gbeth(struct net_device *ndev, int entry,
+					  struct ravb_rx_desc *desc)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	struct sk_buff *skb;
+
+	skb = priv->rx_skb[RAVB_BE][entry];
+	priv->rx_skb[RAVB_BE][entry] = NULL;
+	dma_unmap_single(ndev->dev.parent, le32_to_cpu(desc->dptr),
+			 ALIGN(GBETH_RX_BUFF_MAX, 16), DMA_FROM_DEVICE);
+
+	return skb;
+}
+
+/* Packet receive function for Gigabit Ethernet */
+static bool ravb_rx_gbeth(struct net_device *ndev, int *quota, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	struct net_device_stats *stats;
+	struct ravb_rx_desc *desc;
+	struct sk_buff *skb;
+	dma_addr_t dma_addr;
+	u8  desc_status;
+	int boguscnt;
+	u16 pkt_len;
+	u8  die_dt;
+	int entry;
+	int limit;
+
+	entry = priv->cur_rx[q] % priv->num_rx_ring[q];
+	boguscnt = priv->dirty_rx[q] + priv->num_rx_ring[q] - priv->cur_rx[q];
+	stats = &priv->stats[q];
+
+	boguscnt = min(boguscnt, *quota);
+	limit = boguscnt;
+	desc = &priv->gbeth_rx_ring[entry];
+	while (desc->die_dt != DT_FEMPTY) {
+		/* Descriptor type must be checked before all other reads */
+		dma_rmb();
+		desc_status = desc->msc;
+		pkt_len = le16_to_cpu(desc->ds_cc) & RX_DS;
+
+		if (--boguscnt < 0)
+			break;
+
+		/* We use 0-byte descriptors to mark the DMA mapping errors */
+		if (!pkt_len)
+			continue;
+
+		if (desc_status & MSC_MC)
+			stats->multicast++;
+
+		if (desc_status & (MSC_CRC | MSC_RFE | MSC_RTSF | MSC_RTLF | MSC_CEEF)) {
+			stats->rx_errors++;
+			if (desc_status & MSC_CRC)
+				stats->rx_crc_errors++;
+			if (desc_status & MSC_RFE)
+				stats->rx_frame_errors++;
+			if (desc_status & (MSC_RTLF | MSC_RTSF))
+				stats->rx_length_errors++;
+			if (desc_status & MSC_CEEF)
+				stats->rx_missed_errors++;
+		} else {
+			die_dt = desc->die_dt & 0xF0;
+			switch (die_dt) {
+			case DT_FSINGLE:
+				skb = ravb_get_skb_gbeth(ndev, entry, desc);
+				skb_put(skb, pkt_len);
+				skb->protocol = eth_type_trans(skb, ndev);
+				napi_gro_receive(&priv->napi[q], skb);
+				stats->rx_packets++;
+				stats->rx_bytes += pkt_len;
+				break;
+			case DT_FSTART:
+				priv->rx_1st_skb = ravb_get_skb_gbeth(ndev, entry, desc);
+				skb_put(priv->rx_1st_skb, pkt_len);
+				break;
+			case DT_FMID:
+				skb = ravb_get_skb_gbeth(ndev, entry, desc);
+				skb_copy_to_linear_data_offset(priv->rx_1st_skb,
+							       priv->rx_1st_skb->len,
+							       skb->data,
+							       pkt_len);
+				skb_put(priv->rx_1st_skb, pkt_len);
+				dev_kfree_skb(skb);
+				break;
+			case DT_FEND:
+				skb = ravb_get_skb_gbeth(ndev, entry, desc);
+				skb_copy_to_linear_data_offset(priv->rx_1st_skb,
+							       priv->rx_1st_skb->len,
+							       skb->data,
+							       pkt_len);
+				skb_put(priv->rx_1st_skb, pkt_len);
+				dev_kfree_skb(skb);
+				priv->rx_1st_skb->protocol =
+					eth_type_trans(priv->rx_1st_skb, ndev);
+				napi_gro_receive(&priv->napi[q],
+						 priv->rx_1st_skb);
+				stats->rx_packets++;
+				stats->rx_bytes += pkt_len;
+				break;
+			}
+		}
+
+		entry = (++priv->cur_rx[q]) % priv->num_rx_ring[q];
+		desc = &priv->gbeth_rx_ring[entry];
+	}
+
+	/* Refill the RX ring buffers. */
+	for (; priv->cur_rx[q] - priv->dirty_rx[q] > 0; priv->dirty_rx[q]++) {
+		entry = priv->dirty_rx[q] % priv->num_rx_ring[q];
+		desc = &priv->gbeth_rx_ring[entry];
+		desc->ds_cc = cpu_to_le16(GBETH_RX_DESC_DATA_SIZE);
+
+		if (!priv->rx_skb[q][entry]) {
+			skb = netdev_alloc_skb(ndev, info->max_rx_len);
+			if (!skb)
+				break;
+			ravb_set_buffer_align(skb);
+			dma_addr = dma_map_single(ndev->dev.parent,
+						  skb->data,
+						  GBETH_RX_BUFF_MAX,
+						  DMA_FROM_DEVICE);
+			skb_checksum_none_assert(skb);
+			/* We just set the data size to 0 for a failed mapping
+			 * which should prevent DMA  from happening...
+			 */
+			if (dma_mapping_error(ndev->dev.parent, dma_addr))
+				desc->ds_cc = cpu_to_le16(0);
+			desc->dptr = cpu_to_le32(dma_addr);
+			priv->rx_skb[q][entry] = skb;
+		}
+		/* Descriptor type must be set after all the above writes */
+		dma_wmb();
+		desc->die_dt = DT_FEMPTY;
+	}
+
+	*quota -= limit - (++boguscnt);
+
+	return boguscnt <= 0;
+}
+
+/* Packet receive function for Ethernet AVB */
+static bool ravb_rx_rcar(struct net_device *ndev, int *quota, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	int entry = priv->cur_rx[q] % priv->num_rx_ring[q];
+	int boguscnt = (priv->dirty_rx[q] + priv->num_rx_ring[q]) -
+			priv->cur_rx[q];
+	struct net_device_stats *stats = &priv->stats[q];
+	struct ravb_ex_rx_desc *desc;
+	struct sk_buff *skb;
+	dma_addr_t dma_addr;
+	struct timespec64 ts;
+	u8  desc_status;
+	u16 pkt_len;
+	int limit;
+
+	boguscnt = min(boguscnt, *quota);
+	limit = boguscnt;
+	desc = &priv->rx_ring[q][entry];
+	while (desc->die_dt != DT_FEMPTY) {
+		/* Descriptor type must be checked before all other reads */
+		dma_rmb();
+		desc_status = desc->msc;
+		pkt_len = le16_to_cpu(desc->ds_cc) & RX_DS;
+
+		if (--boguscnt < 0)
+			break;
+
+		/* We use 0-byte descriptors to mark the DMA mapping errors */
+		if (!pkt_len)
+			continue;
+
+		if (desc_status & MSC_MC)
+			stats->multicast++;
+
+		if (desc_status & (MSC_CRC | MSC_RFE | MSC_RTSF | MSC_RTLF |
+				   MSC_CEEF)) {
+			stats->rx_errors++;
+			if (desc_status & MSC_CRC)
+				stats->rx_crc_errors++;
+			if (desc_status & MSC_RFE)
+				stats->rx_frame_errors++;
+			if (desc_status & (MSC_RTLF | MSC_RTSF))
+				stats->rx_length_errors++;
+			if (desc_status & MSC_CEEF)
+				stats->rx_missed_errors++;
+		} else {
+			u32 get_ts = priv->tstamp_rx_ctrl & RAVB_RXTSTAMP_TYPE;
+
+			skb = priv->rx_skb[q][entry];
+			priv->rx_skb[q][entry] = NULL;
+			dma_unmap_single(ndev->dev.parent, le32_to_cpu(desc->dptr),
+					 RX_BUF_SZ,
+					 DMA_FROM_DEVICE);
+			get_ts &= (q == RAVB_NC) ?
+					RAVB_RXTSTAMP_TYPE_V2_L2_EVENT :
+					~RAVB_RXTSTAMP_TYPE_V2_L2_EVENT;
+			if (get_ts) {
+				struct skb_shared_hwtstamps *shhwtstamps;
+
+				shhwtstamps = skb_hwtstamps(skb);
+				memset(shhwtstamps, 0, sizeof(*shhwtstamps));
+				ts.tv_sec = ((u64) le16_to_cpu(desc->ts_sh) <<
+					     32) | le32_to_cpu(desc->ts_sl);
+				ts.tv_nsec = le32_to_cpu(desc->ts_n);
+				shhwtstamps->hwtstamp = timespec64_to_ktime(ts);
+			}
+
+			skb_put(skb, pkt_len);
+			skb->protocol = eth_type_trans(skb, ndev);
+			if (ndev->features & NETIF_F_RXCSUM)
+				ravb_rx_csum(skb);
+			napi_gro_receive(&priv->napi[q], skb);
+			stats->rx_packets++;
+			stats->rx_bytes += pkt_len;
+		}
+
+		entry = (++priv->cur_rx[q]) % priv->num_rx_ring[q];
+		desc = &priv->rx_ring[q][entry];
+	}
+
+	/* Refill the RX ring buffers. */
+	for (; priv->cur_rx[q] - priv->dirty_rx[q] > 0; priv->dirty_rx[q]++) {
+		entry = priv->dirty_rx[q] % priv->num_rx_ring[q];
+		desc = &priv->rx_ring[q][entry];
+		desc->ds_cc = cpu_to_le16(RX_BUF_SZ);
+
+		if (!priv->rx_skb[q][entry]) {
+			skb = netdev_alloc_skb(ndev, info->max_rx_len);
+			if (!skb)
+				break;	/* Better luck next round. */
+			ravb_set_buffer_align(skb);
+			dma_addr = dma_map_single(ndev->dev.parent, skb->data,
+						  le16_to_cpu(desc->ds_cc),
+						  DMA_FROM_DEVICE);
+			skb_checksum_none_assert(skb);
+			/* We just set the data size to 0 for a failed mapping
+			 * which should prevent DMA  from happening...
+			 */
+			if (dma_mapping_error(ndev->dev.parent, dma_addr))
+				desc->ds_cc = cpu_to_le16(0);
+			desc->dptr = cpu_to_le32(dma_addr);
+			priv->rx_skb[q][entry] = skb;
+		}
+		/* Descriptor type must be set after all the above writes */
+		dma_wmb();
+		desc->die_dt = DT_FEMPTY;
+	}
+
+	*quota -= limit - (++boguscnt);
+
+	return boguscnt <= 0;
+}
+
+/* Packet receive function for Ethernet AVB */
+static bool ravb_rx(struct net_device *ndev, int *quota, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+
+	return info->receive(ndev, quota, q);
+}
+
+static void ravb_rcv_snd_disable(struct net_device *ndev)
+{
+	/* Disable TX and RX */
+	ravb_modify(ndev, ECMR, ECMR_RE | ECMR_TE, 0);
+}
+
+static void ravb_rcv_snd_enable(struct net_device *ndev)
+{
+	/* Enable TX and RX */
+	ravb_modify(ndev, ECMR, ECMR_RE | ECMR_TE, ECMR_RE | ECMR_TE);
+}
+
+/* function for waiting dma process finished */
+static int ravb_stop_dma(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	int error;
+
+	/* Wait for stopping the hardware TX process */
+	error = ravb_wait(ndev, TCCR, info->tccr_mask, 0);
+
+	if (error)
+		return error;
+
+	error = ravb_wait(ndev, CSR, CSR_TPO0 | CSR_TPO1 | CSR_TPO2 | CSR_TPO3,
+			  0);
+	if (error)
+		return error;
+
+	/* Stop the E-MAC's RX/TX processes. */
+	ravb_rcv_snd_disable(ndev);
+
+	/* Wait for stopping the RX DMA process */
+	error = ravb_wait(ndev, CSR, CSR_RPO, 0);
+	if (error)
+		return error;
+
+	/* Stop AVB-DMAC process */
+	return ravb_set_opmode(ndev, CCC_OPC_CONFIG);
+}
+
+/* E-MAC interrupt handler */
+static void ravb_emac_interrupt_unlocked(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	u32 ecsr, psr;
+
+	ecsr = ravb_read(ndev, ECSR);
+	ravb_write(ndev, ecsr, ECSR);	/* clear interrupt */
+
+	if (ecsr & ECSR_MPD)
+		pm_wakeup_event(&priv->pdev->dev, 0);
+	if (ecsr & ECSR_ICD)
+		ndev->stats.tx_carrier_errors++;
+	if (ecsr & ECSR_LCHNG) {
+		/* Link changed */
+		if (priv->no_avb_link)
+			return;
+		psr = ravb_read(ndev, PSR);
+		if (priv->avb_link_active_low)
+			psr ^= PSR_LMON;
+		if (!(psr & PSR_LMON)) {
+			/* DIsable RX and TX */
+			ravb_rcv_snd_disable(ndev);
+		} else {
+			/* Enable RX and TX */
+			ravb_rcv_snd_enable(ndev);
+		}
+	}
+}
+
+static irqreturn_t ravb_emac_interrupt(int irq, void *dev_id)
+{
+	struct net_device *ndev = dev_id;
+	struct ravb_private *priv = netdev_priv(ndev);
+
+	spin_lock(&priv->lock);
+	ravb_emac_interrupt_unlocked(ndev);
+	spin_unlock(&priv->lock);
+	return IRQ_HANDLED;
+}
+
+/* Error interrupt handler */
+static void ravb_error_interrupt(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	u32 eis, ris2;
+
+	eis = ravb_read(ndev, EIS);
+	ravb_write(ndev, ~(EIS_QFS | EIS_RESERVED), EIS);
+	if (eis & EIS_QFS) {
+		ris2 = ravb_read(ndev, RIS2);
+		ravb_write(ndev, ~(RIS2_QFF0 | RIS2_QFF1 | RIS2_RFFF | RIS2_RESERVED),
+			   RIS2);
+
+		/* Receive Descriptor Empty int */
+		if (ris2 & RIS2_QFF0)
+			priv->stats[RAVB_BE].rx_over_errors++;
+
+		/* Receive Descriptor Empty int */
+		if (ris2 & RIS2_QFF1)
+			priv->stats[RAVB_NC].rx_over_errors++;
+
+		/* Receive FIFO Overflow int */
+		if (ris2 & RIS2_RFFF)
+			priv->rx_fifo_errors++;
+	}
+}
+
+static bool ravb_queue_interrupt(struct net_device *ndev, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	u32 ris0 = ravb_read(ndev, RIS0);
+	u32 ric0 = ravb_read(ndev, RIC0);
+	u32 tis  = ravb_read(ndev, TIS);
+	u32 tic  = ravb_read(ndev, TIC);
+
+	if (((ris0 & ric0) & BIT(q)) || ((tis  & tic)  & BIT(q))) {
+		if (napi_schedule_prep(&priv->napi[q])) {
+			/* Mask RX and TX interrupts */
+			if (!info->irq_en_dis) {
+				ravb_write(ndev, ric0 & ~BIT(q), RIC0);
+				ravb_write(ndev, tic & ~BIT(q), TIC);
+			} else {
+				ravb_write(ndev, BIT(q), RID0);
+				ravb_write(ndev, BIT(q), TID);
+			}
+			__napi_schedule(&priv->napi[q]);
+		} else {
+			netdev_warn(ndev,
+				    "ignoring interrupt, rx status 0x%08x, rx mask 0x%08x,\n",
+				    ris0, ric0);
+			netdev_warn(ndev,
+				    "                    tx status 0x%08x, tx mask 0x%08x.\n",
+				    tis, tic);
+		}
+		return true;
+	}
+	return false;
+}
+
+static bool ravb_timestamp_interrupt(struct net_device *ndev)
+{
+	u32 tis = ravb_read(ndev, TIS);
+
+	if (tis & TIS_TFUF) {
+		ravb_write(ndev, ~(TIS_TFUF | TIS_RESERVED), TIS);
+		ravb_get_tx_tstamp(ndev);
+		return true;
+	}
+	return false;
+}
+
+static irqreturn_t ravb_interrupt(int irq, void *dev_id)
+{
+	struct net_device *ndev = dev_id;
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	irqreturn_t result = IRQ_NONE;
+	u32 iss;
+
+	spin_lock(&priv->lock);
+	/* Get interrupt status */
+	iss = ravb_read(ndev, ISS);
+
+	/* Received and transmitted interrupts */
+	if (iss & (ISS_FRS | ISS_FTS | ISS_TFUS)) {
+		int q;
+
+		/* Timestamp updated */
+		if (ravb_timestamp_interrupt(ndev))
+			result = IRQ_HANDLED;
+
+		/* Network control and best effort queue RX/TX */
+		if (info->nc_queues) {
+			for (q = RAVB_NC; q >= RAVB_BE; q--) {
+				if (ravb_queue_interrupt(ndev, q))
+					result = IRQ_HANDLED;
+			}
+		} else {
+			if (ravb_queue_interrupt(ndev, RAVB_BE))
+				result = IRQ_HANDLED;
+		}
+	}
+
+	/* E-MAC status summary */
+	if (iss & ISS_MS) {
+		ravb_emac_interrupt_unlocked(ndev);
+		result = IRQ_HANDLED;
+	}
+
+	/* Error status summary */
+	if (iss & ISS_ES) {
+		ravb_error_interrupt(ndev);
+		result = IRQ_HANDLED;
+	}
+
+	/* gPTP interrupt status summary */
+	if (iss & ISS_CGIS) {
+		ravb_ptp_interrupt(ndev);
+		result = IRQ_HANDLED;
+	}
+
+	spin_unlock(&priv->lock);
+	return result;
+}
+
+/* Timestamp/Error/gPTP interrupt handler */
+static irqreturn_t ravb_multi_interrupt(int irq, void *dev_id)
+{
+	struct net_device *ndev = dev_id;
+	struct ravb_private *priv = netdev_priv(ndev);
+	irqreturn_t result = IRQ_NONE;
+	u32 iss;
+
+	spin_lock(&priv->lock);
+	/* Get interrupt status */
+	iss = ravb_read(ndev, ISS);
+
+	/* Timestamp updated */
+	if ((iss & ISS_TFUS) && ravb_timestamp_interrupt(ndev))
+		result = IRQ_HANDLED;
+
+	/* Error status summary */
+	if (iss & ISS_ES) {
+		ravb_error_interrupt(ndev);
+		result = IRQ_HANDLED;
+	}
+
+	/* gPTP interrupt status summary */
+	if (iss & ISS_CGIS) {
+		ravb_ptp_interrupt(ndev);
+		result = IRQ_HANDLED;
+	}
+
+	spin_unlock(&priv->lock);
+	return result;
+}
+
+static irqreturn_t ravb_dma_interrupt(int irq, void *dev_id, int q)
+{
+	struct net_device *ndev = dev_id;
+	struct ravb_private *priv = netdev_priv(ndev);
+	irqreturn_t result = IRQ_NONE;
+
+	spin_lock(&priv->lock);
+
+	/* Network control/Best effort queue RX/TX */
+	if (ravb_queue_interrupt(ndev, q))
+		result = IRQ_HANDLED;
+
+	spin_unlock(&priv->lock);
+	return result;
+}
+
+static irqreturn_t ravb_be_interrupt(int irq, void *dev_id)
+{
+	return ravb_dma_interrupt(irq, dev_id, RAVB_BE);
+}
+
+static irqreturn_t ravb_nc_interrupt(int irq, void *dev_id)
+{
+	return ravb_dma_interrupt(irq, dev_id, RAVB_NC);
+}
+
+static int ravb_poll(struct napi_struct *napi, int budget)
+{
+	struct net_device *ndev = napi->dev;
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	bool gptp = info->gptp || info->ccc_gac;
+	struct ravb_rx_desc *desc;
+	unsigned long flags;
+	int q = napi - priv->napi;
+	int mask = BIT(q);
+	int quota = budget;
+	unsigned int entry;
+
+	if (!gptp) {
+		entry = priv->cur_rx[q] % priv->num_rx_ring[q];
+		desc = &priv->gbeth_rx_ring[entry];
+	}
+	/* Processing RX Descriptor Ring */
+	/* Clear RX interrupt */
+	ravb_write(ndev, ~(mask | RIS0_RESERVED), RIS0);
+	if (gptp || desc->die_dt != DT_FEMPTY) {
+		if (ravb_rx(ndev, &quota, q))
+			goto out;
+	}
+
+	/* Processing TX Descriptor Ring */
+	spin_lock_irqsave(&priv->lock, flags);
+	/* Clear TX interrupt */
+	ravb_write(ndev, ~(mask | TIS_RESERVED), TIS);
+	ravb_tx_free(ndev, q, true);
+	netif_wake_subqueue(ndev, q);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	napi_complete(napi);
+
+	/* Re-enable RX/TX interrupts */
+	spin_lock_irqsave(&priv->lock, flags);
+	if (!info->irq_en_dis) {
+		ravb_modify(ndev, RIC0, mask, mask);
+		ravb_modify(ndev, TIC,  mask, mask);
+	} else {
+		ravb_write(ndev, mask, RIE0);
+		ravb_write(ndev, mask, TIE);
+	}
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	/* Receive error message handling */
+	priv->rx_over_errors =  priv->stats[RAVB_BE].rx_over_errors;
+	if (info->nc_queues)
+		priv->rx_over_errors += priv->stats[RAVB_NC].rx_over_errors;
+	if (priv->rx_over_errors != ndev->stats.rx_over_errors)
+		ndev->stats.rx_over_errors = priv->rx_over_errors;
+	if (priv->rx_fifo_errors != ndev->stats.rx_fifo_errors)
+		ndev->stats.rx_fifo_errors = priv->rx_fifo_errors;
+out:
+	return budget - quota;
+}
+
+static void ravb_set_duplex_gbeth(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+
+	ravb_modify(ndev, ECMR, ECMR_DM, priv->duplex > 0 ? ECMR_DM : 0);
+}
+
+/* PHY state control function */
+static void ravb_adjust_link(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	struct phy_device *phydev = ndev->phydev;
+	bool new_state = false;
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->lock, flags);
+
+	/* Disable TX and RX right over here, if E-MAC change is ignored */
+	if (priv->no_avb_link)
+		ravb_rcv_snd_disable(ndev);
+
+	if (phydev->link) {
+		if (info->half_duplex && phydev->duplex != priv->duplex) {
+			new_state = true;
+			priv->duplex = phydev->duplex;
+			ravb_set_duplex_gbeth(ndev);
+		}
+
+		if (phydev->speed != priv->speed) {
+			new_state = true;
+			priv->speed = phydev->speed;
+			info->set_rate(ndev);
+		}
+		if (!priv->link) {
+			ravb_modify(ndev, ECMR, ECMR_TXF, 0);
+			new_state = true;
+			priv->link = phydev->link;
+		}
+	} else if (priv->link) {
+		new_state = true;
+		priv->link = 0;
+		priv->speed = 0;
+		if (info->half_duplex)
+			priv->duplex = -1;
+	}
+
+	/* Enable TX and RX right over here, if E-MAC change is ignored */
+	if (priv->no_avb_link && phydev->link)
+		ravb_rcv_snd_enable(ndev);
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	if (new_state && netif_msg_link(priv))
+		phy_print_status(phydev);
+}
+
+static const struct soc_device_attribute r8a7795es10[] = {
+	{ .soc_id = "r8a7795", .revision = "ES1.0", },
+	{ /* sentinel */ }
+};
+
+/* PHY init function */
+static int ravb_phy_init(struct net_device *ndev)
+{
+	struct device_node *np = ndev->dev.parent->of_node;
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	struct phy_device *phydev;
+	struct device_node *pn;
+	phy_interface_t iface;
+	int err;
+
+	priv->link = 0;
+	priv->speed = 0;
+	priv->duplex = -1;
+
+	/* Try connecting to PHY */
+	pn = of_parse_phandle(np, "phy-handle", 0);
+	if (!pn) {
+		/* In the case of a fixed PHY, the DT node associated
+		 * to the PHY is the Ethernet MAC DT node.
+		 */
+		if (of_phy_is_fixed_link(np)) {
+			err = of_phy_register_fixed_link(np);
+			if (err)
+				return err;
+		}
+		pn = of_node_get(np);
+	}
+
+	iface = priv->rgmii_override ? PHY_INTERFACE_MODE_RGMII
+				     : priv->phy_interface;
+	phydev = of_phy_connect(ndev, pn, ravb_adjust_link, 0, iface);
+	of_node_put(pn);
+	if (!phydev) {
+		netdev_err(ndev, "failed to connect PHY\n");
+		err = -ENOENT;
+		goto err_deregister_fixed_link;
+	}
+
+	/* This driver only support 10/100Mbit speeds on R-Car H3 ES1.0
+	 * at this time.
+	 */
+	if (soc_device_match(r8a7795es10)) {
+		phy_set_max_speed(phydev, SPEED_100);
+
+		netdev_info(ndev, "limited PHY to 100Mbit/s\n");
+	}
+
+	if (!info->half_duplex) {
+		/* 10BASE, Pause and Asym Pause is not supported */
+		phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_10baseT_Half_BIT);
+		phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_10baseT_Full_BIT);
+		phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_Pause_BIT);
+		phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_Asym_Pause_BIT);
+
+		/* Half Duplex is not supported */
+		phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
+		phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_100baseT_Half_BIT);
+	}
+
+	phy_attached_info(phydev);
+
+	return 0;
+
+err_deregister_fixed_link:
+	if (of_phy_is_fixed_link(np))
+		of_phy_deregister_fixed_link(np);
+
+	return err;
+}
+
+/* PHY control start function */
+static int ravb_phy_start(struct net_device *ndev)
+{
+	int error;
+
+	error = ravb_phy_init(ndev);
+	if (error)
+		return error;
+
+	phy_start(ndev->phydev);
+
+	return 0;
+}
+
+static u32 ravb_get_msglevel(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+
+	return priv->msg_enable;
+}
+
+static void ravb_set_msglevel(struct net_device *ndev, u32 value)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+
+	priv->msg_enable = value;
+}
+
+static const char ravb_gstrings_stats_gbeth[][ETH_GSTRING_LEN] = {
+	"rx_queue_0_current",
+	"tx_queue_0_current",
+	"rx_queue_0_dirty",
+	"tx_queue_0_dirty",
+	"rx_queue_0_packets",
+	"tx_queue_0_packets",
+	"rx_queue_0_bytes",
+	"tx_queue_0_bytes",
+	"rx_queue_0_mcast_packets",
+	"rx_queue_0_errors",
+	"rx_queue_0_crc_errors",
+	"rx_queue_0_frame_errors",
+	"rx_queue_0_length_errors",
+	"rx_queue_0_csum_offload_errors",
+	"rx_queue_0_over_errors",
+};
+
+static const char ravb_gstrings_stats[][ETH_GSTRING_LEN] = {
+	"rx_queue_0_current",
+	"tx_queue_0_current",
+	"rx_queue_0_dirty",
+	"tx_queue_0_dirty",
+	"rx_queue_0_packets",
+	"tx_queue_0_packets",
+	"rx_queue_0_bytes",
+	"tx_queue_0_bytes",
+	"rx_queue_0_mcast_packets",
+	"rx_queue_0_errors",
+	"rx_queue_0_crc_errors",
+	"rx_queue_0_frame_errors",
+	"rx_queue_0_length_errors",
+	"rx_queue_0_missed_errors",
+	"rx_queue_0_over_errors",
+
+	"rx_queue_1_current",
+	"tx_queue_1_current",
+	"rx_queue_1_dirty",
+	"tx_queue_1_dirty",
+	"rx_queue_1_packets",
+	"tx_queue_1_packets",
+	"rx_queue_1_bytes",
+	"tx_queue_1_bytes",
+	"rx_queue_1_mcast_packets",
+	"rx_queue_1_errors",
+	"rx_queue_1_crc_errors",
+	"rx_queue_1_frame_errors",
+	"rx_queue_1_length_errors",
+	"rx_queue_1_missed_errors",
+	"rx_queue_1_over_errors",
+};
+
+static int ravb_get_sset_count(struct net_device *netdev, int sset)
+{
+	struct ravb_private *priv = netdev_priv(netdev);
+	const struct ravb_hw_info *info = priv->info;
+
+	switch (sset) {
+	case ETH_SS_STATS:
+		return info->stats_len;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void ravb_get_ethtool_stats(struct net_device *ndev,
+				   struct ethtool_stats *estats, u64 *data)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	int num_rx_q;
+	int i = 0;
+	int q;
+
+	num_rx_q = info->nc_queues ? NUM_RX_QUEUE : 1;
+	/* Device-specific stats */
+	for (q = RAVB_BE; q < num_rx_q; q++) {
+		struct net_device_stats *stats = &priv->stats[q];
+
+		data[i++] = priv->cur_rx[q];
+		data[i++] = priv->cur_tx[q];
+		data[i++] = priv->dirty_rx[q];
+		data[i++] = priv->dirty_tx[q];
+		data[i++] = stats->rx_packets;
+		data[i++] = stats->tx_packets;
+		data[i++] = stats->rx_bytes;
+		data[i++] = stats->tx_bytes;
+		data[i++] = stats->multicast;
+		data[i++] = stats->rx_errors;
+		data[i++] = stats->rx_crc_errors;
+		data[i++] = stats->rx_frame_errors;
+		data[i++] = stats->rx_length_errors;
+		data[i++] = stats->rx_missed_errors;
+		data[i++] = stats->rx_over_errors;
+	}
+}
+
+static void ravb_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+
+	switch (stringset) {
+	case ETH_SS_STATS:
+		memcpy(data, info->gstrings_stats, info->gstrings_size);
+		break;
+	}
+}
+
+static void ravb_get_ringparam(struct net_device *ndev,
+			       struct ethtool_ringparam *ring,
+			       struct kernel_ethtool_ringparam *kernel_ring,
+			       struct netlink_ext_ack *extack)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+
+	ring->rx_max_pending = BE_RX_RING_MAX;
+	ring->tx_max_pending = BE_TX_RING_MAX;
+	ring->rx_pending = priv->num_rx_ring[RAVB_BE];
+	ring->tx_pending = priv->num_tx_ring[RAVB_BE];
+}
+
+static int ravb_set_ringparam(struct net_device *ndev,
+			      struct ethtool_ringparam *ring,
+			      struct kernel_ethtool_ringparam *kernel_ring,
+			      struct netlink_ext_ack *extack)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	int error;
+
+	if (ring->tx_pending > BE_TX_RING_MAX ||
+	    ring->rx_pending > BE_RX_RING_MAX ||
+	    ring->tx_pending < BE_TX_RING_MIN ||
+	    ring->rx_pending < BE_RX_RING_MIN)
+		return -EINVAL;
+	if (ring->rx_mini_pending || ring->rx_jumbo_pending)
+		return -EINVAL;
+
+	if (netif_running(ndev)) {
+		netif_device_detach(ndev);
+		/* Stop PTP Clock driver */
+		if (info->gptp)
+			ravb_ptp_stop(ndev);
+		/* Wait for DMA stopping */
+		error = ravb_stop_dma(ndev);
+		if (error) {
+			netdev_err(ndev,
+				   "cannot set ringparam! Any AVB processes are still running?\n");
+			return error;
+		}
+		synchronize_irq(ndev->irq);
+
+		/* Free all the skb's in the RX queue and the DMA buffers. */
+		ravb_ring_free(ndev, RAVB_BE);
+		if (info->nc_queues)
+			ravb_ring_free(ndev, RAVB_NC);
+	}
+
+	/* Set new parameters */
+	priv->num_rx_ring[RAVB_BE] = ring->rx_pending;
+	priv->num_tx_ring[RAVB_BE] = ring->tx_pending;
+
+	if (netif_running(ndev)) {
+		error = ravb_dmac_init(ndev);
+		if (error) {
+			netdev_err(ndev,
+				   "%s: ravb_dmac_init() failed, error %d\n",
+				   __func__, error);
+			return error;
+		}
+
+		ravb_emac_init(ndev);
+
+		/* Initialise PTP Clock driver */
+		if (info->gptp)
+			ravb_ptp_init(ndev, priv->pdev);
+
+		netif_device_attach(ndev);
+	}
+
+	return 0;
+}
+
+static int ravb_get_ts_info(struct net_device *ndev,
+			    struct ethtool_ts_info *info)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *hw_info = priv->info;
+
+	info->so_timestamping =
+		SOF_TIMESTAMPING_TX_SOFTWARE |
+		SOF_TIMESTAMPING_RX_SOFTWARE |
+		SOF_TIMESTAMPING_SOFTWARE |
+		SOF_TIMESTAMPING_TX_HARDWARE |
+		SOF_TIMESTAMPING_RX_HARDWARE |
+		SOF_TIMESTAMPING_RAW_HARDWARE;
+	info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
+	info->rx_filters =
+		(1 << HWTSTAMP_FILTER_NONE) |
+		(1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
+		(1 << HWTSTAMP_FILTER_ALL);
+	if (hw_info->gptp || hw_info->ccc_gac)
+		info->phc_index = ptp_clock_index(priv->ptp.clock);
+
+	return 0;
+}
+
+static void ravb_get_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+
+	wol->supported = WAKE_MAGIC;
+	wol->wolopts = priv->wol_enabled ? WAKE_MAGIC : 0;
+}
+
+static int ravb_set_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+
+	if (!info->magic_pkt || (wol->wolopts & ~WAKE_MAGIC))
+		return -EOPNOTSUPP;
+
+	priv->wol_enabled = !!(wol->wolopts & WAKE_MAGIC);
+
+	device_set_wakeup_enable(&priv->pdev->dev, priv->wol_enabled);
+
+	return 0;
+}
+
+static const struct ethtool_ops ravb_ethtool_ops = {
+	.nway_reset		= phy_ethtool_nway_reset,
+	.get_msglevel		= ravb_get_msglevel,
+	.set_msglevel		= ravb_set_msglevel,
+	.get_link		= ethtool_op_get_link,
+	.get_strings		= ravb_get_strings,
+	.get_ethtool_stats	= ravb_get_ethtool_stats,
+	.get_sset_count		= ravb_get_sset_count,
+	.get_ringparam		= ravb_get_ringparam,
+	.set_ringparam		= ravb_set_ringparam,
+	.get_ts_info		= ravb_get_ts_info,
+	.get_link_ksettings	= phy_ethtool_get_link_ksettings,
+	.set_link_ksettings	= phy_ethtool_set_link_ksettings,
+	.get_wol		= ravb_get_wol,
+	.set_wol		= ravb_set_wol,
+};
+
+static inline int ravb_hook_irq(unsigned int irq, irq_handler_t handler,
+				struct net_device *ndev, struct device *dev,
+				const char *ch)
+{
+	char *name;
+	int error;
+
+	name = devm_kasprintf(dev, GFP_KERNEL, "%s:%s", ndev->name, ch);
+	if (!name)
+		return -ENOMEM;
+	error = request_irq(irq, handler, 0, name, ndev);
+	if (error)
+		netdev_err(ndev, "cannot request IRQ %s\n", name);
+
+	return error;
+}
+
+/* Network device open function for Ethernet AVB */
+static int ravb_open(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	struct platform_device *pdev = priv->pdev;
+	struct device *dev = &pdev->dev;
+	int error;
+
+	napi_enable(&priv->napi[RAVB_BE]);
+	if (info->nc_queues)
+		napi_enable(&priv->napi[RAVB_NC]);
+
+	if (!info->multi_irqs) {
+		error = request_irq(ndev->irq, ravb_interrupt, IRQF_SHARED,
+				    ndev->name, ndev);
+		if (error) {
+			netdev_err(ndev, "cannot request IRQ\n");
+			goto out_napi_off;
+		}
+	} else {
+		error = ravb_hook_irq(ndev->irq, ravb_multi_interrupt, ndev,
+				      dev, "ch22:multi");
+		if (error)
+			goto out_napi_off;
+		error = ravb_hook_irq(priv->emac_irq, ravb_emac_interrupt, ndev,
+				      dev, "ch24:emac");
+		if (error)
+			goto out_free_irq;
+		error = ravb_hook_irq(priv->rx_irqs[RAVB_BE], ravb_be_interrupt,
+				      ndev, dev, "ch0:rx_be");
+		if (error)
+			goto out_free_irq_emac;
+		error = ravb_hook_irq(priv->tx_irqs[RAVB_BE], ravb_be_interrupt,
+				      ndev, dev, "ch18:tx_be");
+		if (error)
+			goto out_free_irq_be_rx;
+		error = ravb_hook_irq(priv->rx_irqs[RAVB_NC], ravb_nc_interrupt,
+				      ndev, dev, "ch1:rx_nc");
+		if (error)
+			goto out_free_irq_be_tx;
+		error = ravb_hook_irq(priv->tx_irqs[RAVB_NC], ravb_nc_interrupt,
+				      ndev, dev, "ch19:tx_nc");
+		if (error)
+			goto out_free_irq_nc_rx;
+
+		if (info->err_mgmt_irqs) {
+			error = ravb_hook_irq(priv->erra_irq, ravb_multi_interrupt,
+					      ndev, dev, "err_a");
+			if (error)
+				goto out_free_irq_nc_tx;
+			error = ravb_hook_irq(priv->mgmta_irq, ravb_multi_interrupt,
+					      ndev, dev, "mgmt_a");
+			if (error)
+				goto out_free_irq_erra;
+		}
+	}
+
+	/* Device init */
+	error = ravb_dmac_init(ndev);
+	if (error)
+		goto out_free_irq_mgmta;
+	ravb_emac_init(ndev);
+
+	/* Initialise PTP Clock driver */
+	if (info->gptp)
+		ravb_ptp_init(ndev, priv->pdev);
+
+	/* PHY control start */
+	error = ravb_phy_start(ndev);
+	if (error)
+		goto out_ptp_stop;
+
+	netif_tx_start_all_queues(ndev);
+
+	return 0;
+
+out_ptp_stop:
+	/* Stop PTP Clock driver */
+	if (info->gptp)
+		ravb_ptp_stop(ndev);
+	ravb_stop_dma(ndev);
+out_free_irq_mgmta:
+	if (!info->multi_irqs)
+		goto out_free_irq;
+	if (info->err_mgmt_irqs)
+		free_irq(priv->mgmta_irq, ndev);
+out_free_irq_erra:
+	if (info->err_mgmt_irqs)
+		free_irq(priv->erra_irq, ndev);
+out_free_irq_nc_tx:
+	free_irq(priv->tx_irqs[RAVB_NC], ndev);
+out_free_irq_nc_rx:
+	free_irq(priv->rx_irqs[RAVB_NC], ndev);
+out_free_irq_be_tx:
+	free_irq(priv->tx_irqs[RAVB_BE], ndev);
+out_free_irq_be_rx:
+	free_irq(priv->rx_irqs[RAVB_BE], ndev);
+out_free_irq_emac:
+	free_irq(priv->emac_irq, ndev);
+out_free_irq:
+	free_irq(ndev->irq, ndev);
+out_napi_off:
+	if (info->nc_queues)
+		napi_disable(&priv->napi[RAVB_NC]);
+	napi_disable(&priv->napi[RAVB_BE]);
+	return error;
+}
+
+/* Timeout function for Ethernet AVB */
+static void ravb_tx_timeout(struct net_device *ndev, unsigned int txqueue)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+
+	netif_err(priv, tx_err, ndev,
+		  "transmit timed out, status %08x, resetting...\n",
+		  ravb_read(ndev, ISS));
+
+	/* tx_errors count up */
+	ndev->stats.tx_errors++;
+
+	schedule_work(&priv->work);
+}
+
+static void ravb_tx_timeout_work(struct work_struct *work)
+{
+	struct ravb_private *priv = container_of(work, struct ravb_private,
+						 work);
+	const struct ravb_hw_info *info = priv->info;
+	struct net_device *ndev = priv->ndev;
+	int error;
+
+	if (!rtnl_trylock()) {
+		usleep_range(1000, 2000);
+		schedule_work(&priv->work);
+		return;
+	}
+
+	netif_tx_stop_all_queues(ndev);
+
+	/* Stop PTP Clock driver */
+	if (info->gptp)
+		ravb_ptp_stop(ndev);
+
+	/* Wait for DMA stopping */
+	if (ravb_stop_dma(ndev)) {
+		/* If ravb_stop_dma() fails, the hardware is still operating
+		 * for TX and/or RX. So, this should not call the following
+		 * functions because ravb_dmac_init() is possible to fail too.
+		 * Also, this should not retry ravb_stop_dma() again and again
+		 * here because it's possible to wait forever. So, this just
+		 * re-enables the TX and RX and skip the following
+		 * re-initialization procedure.
+		 */
+		ravb_rcv_snd_enable(ndev);
+		goto out;
+	}
+
+	ravb_ring_free(ndev, RAVB_BE);
+	if (info->nc_queues)
+		ravb_ring_free(ndev, RAVB_NC);
+
+	/* Device init */
+	error = ravb_dmac_init(ndev);
+	if (error) {
+		/* If ravb_dmac_init() fails, descriptors are freed. So, this
+		 * should return here to avoid re-enabling the TX and RX in
+		 * ravb_emac_init().
+		 */
+		netdev_err(ndev, "%s: ravb_dmac_init() failed, error %d\n",
+			   __func__, error);
+		goto out_unlock;
+	}
+	ravb_emac_init(ndev);
+
+out:
+	/* Initialise PTP Clock driver */
+	if (info->gptp)
+		ravb_ptp_init(ndev, priv->pdev);
+
+	netif_tx_start_all_queues(ndev);
+
+out_unlock:
+	rtnl_unlock();
+}
+
+/* Packet transmit function for Ethernet AVB */
+static netdev_tx_t ravb_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	unsigned int num_tx_desc = priv->num_tx_desc;
+	u16 q = skb_get_queue_mapping(skb);
+	struct ravb_tstamp_skb *ts_skb;
+	struct ravb_tx_desc *desc;
+	unsigned long flags;
+	dma_addr_t dma_addr;
+	void *buffer;
+	u32 entry;
+	u32 len;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (priv->cur_tx[q] - priv->dirty_tx[q] > (priv->num_tx_ring[q] - 1) *
+	    num_tx_desc) {
+		netif_err(priv, tx_queued, ndev,
+			  "still transmitting with the full ring!\n");
+		netif_stop_subqueue(ndev, q);
+		spin_unlock_irqrestore(&priv->lock, flags);
+		return NETDEV_TX_BUSY;
+	}
+
+	if (skb_put_padto(skb, ETH_ZLEN))
+		goto exit;
+
+	entry = priv->cur_tx[q] % (priv->num_tx_ring[q] * num_tx_desc);
+	priv->tx_skb[q][entry / num_tx_desc] = skb;
+
+	if (num_tx_desc > 1) {
+		buffer = PTR_ALIGN(priv->tx_align[q], DPTR_ALIGN) +
+			 entry / num_tx_desc * DPTR_ALIGN;
+		len = PTR_ALIGN(skb->data, DPTR_ALIGN) - skb->data;
+
+		/* Zero length DMA descriptors are problematic as they seem
+		 * to terminate DMA transfers. Avoid them by simply using a
+		 * length of DPTR_ALIGN (4) when skb data is aligned to
+		 * DPTR_ALIGN.
+		 *
+		 * As skb is guaranteed to have at least ETH_ZLEN (60)
+		 * bytes of data by the call to skb_put_padto() above this
+		 * is safe with respect to both the length of the first DMA
+		 * descriptor (len) overflowing the available data and the
+		 * length of the second DMA descriptor (skb->len - len)
+		 * being negative.
+		 */
+		if (len == 0)
+			len = DPTR_ALIGN;
+
+		memcpy(buffer, skb->data, len);
+		dma_addr = dma_map_single(ndev->dev.parent, buffer, len,
+					  DMA_TO_DEVICE);
+		if (dma_mapping_error(ndev->dev.parent, dma_addr))
+			goto drop;
+
+		desc = &priv->tx_ring[q][entry];
+		desc->ds_tagl = cpu_to_le16(len);
+		desc->dptr = cpu_to_le32(dma_addr);
+
+		buffer = skb->data + len;
+		len = skb->len - len;
+		dma_addr = dma_map_single(ndev->dev.parent, buffer, len,
+					  DMA_TO_DEVICE);
+		if (dma_mapping_error(ndev->dev.parent, dma_addr))
+			goto unmap;
+
+		desc++;
+	} else {
+		desc = &priv->tx_ring[q][entry];
+		len = skb->len;
+		dma_addr = dma_map_single(ndev->dev.parent, skb->data, skb->len,
+					  DMA_TO_DEVICE);
+		if (dma_mapping_error(ndev->dev.parent, dma_addr))
+			goto drop;
+	}
+	desc->ds_tagl = cpu_to_le16(len);
+	desc->dptr = cpu_to_le32(dma_addr);
+
+	/* TX timestamp required */
+	if (info->gptp || info->ccc_gac) {
+		if (q == RAVB_NC) {
+			ts_skb = kmalloc(sizeof(*ts_skb), GFP_ATOMIC);
+			if (!ts_skb) {
+				if (num_tx_desc > 1) {
+					desc--;
+					dma_unmap_single(ndev->dev.parent, dma_addr,
+							 len, DMA_TO_DEVICE);
+				}
+				goto unmap;
+			}
+			ts_skb->skb = skb_get(skb);
+			ts_skb->tag = priv->ts_skb_tag++;
+			priv->ts_skb_tag &= 0x3ff;
+			list_add_tail(&ts_skb->list, &priv->ts_skb_list);
+
+			/* TAG and timestamp required flag */
+			skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
+			desc->tagh_tsr = (ts_skb->tag >> 4) | TX_TSR;
+			desc->ds_tagl |= cpu_to_le16(ts_skb->tag << 12);
+		}
+
+		skb_tx_timestamp(skb);
+	}
+	/* Descriptor type must be set after all the above writes */
+	dma_wmb();
+	if (num_tx_desc > 1) {
+		desc->die_dt = DT_FEND;
+		desc--;
+		desc->die_dt = DT_FSTART;
+	} else {
+		desc->die_dt = DT_FSINGLE;
+	}
+	ravb_modify(ndev, TCCR, TCCR_TSRQ0 << q, TCCR_TSRQ0 << q);
+
+	priv->cur_tx[q] += num_tx_desc;
+	if (priv->cur_tx[q] - priv->dirty_tx[q] >
+	    (priv->num_tx_ring[q] - 1) * num_tx_desc &&
+	    !ravb_tx_free(ndev, q, true))
+		netif_stop_subqueue(ndev, q);
+
+exit:
+	spin_unlock_irqrestore(&priv->lock, flags);
+	return NETDEV_TX_OK;
+
+unmap:
+	dma_unmap_single(ndev->dev.parent, le32_to_cpu(desc->dptr),
+			 le16_to_cpu(desc->ds_tagl), DMA_TO_DEVICE);
+drop:
+	dev_kfree_skb_any(skb);
+	priv->tx_skb[q][entry / num_tx_desc] = NULL;
+	goto exit;
+}
+
+static u16 ravb_select_queue(struct net_device *ndev, struct sk_buff *skb,
+			     struct net_device *sb_dev)
+{
+	/* If skb needs TX timestamp, it is handled in network control queue */
+	return (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) ? RAVB_NC :
+							       RAVB_BE;
+
+}
+
+static struct net_device_stats *ravb_get_stats(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	struct net_device_stats *nstats, *stats0, *stats1;
+
+	nstats = &ndev->stats;
+	stats0 = &priv->stats[RAVB_BE];
+
+	if (info->tx_counters) {
+		nstats->tx_dropped += ravb_read(ndev, TROCR);
+		ravb_write(ndev, 0, TROCR);	/* (write clear) */
+	}
+
+	if (info->carrier_counters) {
+		nstats->collisions += ravb_read(ndev, CXR41);
+		ravb_write(ndev, 0, CXR41);	/* (write clear) */
+		nstats->tx_carrier_errors += ravb_read(ndev, CXR42);
+		ravb_write(ndev, 0, CXR42);	/* (write clear) */
+	}
+
+	nstats->rx_packets = stats0->rx_packets;
+	nstats->tx_packets = stats0->tx_packets;
+	nstats->rx_bytes = stats0->rx_bytes;
+	nstats->tx_bytes = stats0->tx_bytes;
+	nstats->multicast = stats0->multicast;
+	nstats->rx_errors = stats0->rx_errors;
+	nstats->rx_crc_errors = stats0->rx_crc_errors;
+	nstats->rx_frame_errors = stats0->rx_frame_errors;
+	nstats->rx_length_errors = stats0->rx_length_errors;
+	nstats->rx_missed_errors = stats0->rx_missed_errors;
+	nstats->rx_over_errors = stats0->rx_over_errors;
+	if (info->nc_queues) {
+		stats1 = &priv->stats[RAVB_NC];
+
+		nstats->rx_packets += stats1->rx_packets;
+		nstats->tx_packets += stats1->tx_packets;
+		nstats->rx_bytes += stats1->rx_bytes;
+		nstats->tx_bytes += stats1->tx_bytes;
+		nstats->multicast += stats1->multicast;
+		nstats->rx_errors += stats1->rx_errors;
+		nstats->rx_crc_errors += stats1->rx_crc_errors;
+		nstats->rx_frame_errors += stats1->rx_frame_errors;
+		nstats->rx_length_errors += stats1->rx_length_errors;
+		nstats->rx_missed_errors += stats1->rx_missed_errors;
+		nstats->rx_over_errors += stats1->rx_over_errors;
+	}
+
+	return nstats;
+}
+
+/* Update promiscuous bit */
+static void ravb_set_rx_mode(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	ravb_modify(ndev, ECMR, ECMR_PRM,
+		    ndev->flags & IFF_PROMISC ? ECMR_PRM : 0);
+	spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+/* Device close function for Ethernet AVB */
+static int ravb_close(struct net_device *ndev)
+{
+	struct device_node *np = ndev->dev.parent->of_node;
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	struct ravb_tstamp_skb *ts_skb, *ts_skb2;
+
+	netif_tx_stop_all_queues(ndev);
+
+	/* Disable interrupts by clearing the interrupt masks. */
+	ravb_write(ndev, 0, RIC0);
+	ravb_write(ndev, 0, RIC2);
+	ravb_write(ndev, 0, TIC);
+
+	/* Stop PTP Clock driver */
+	if (info->gptp)
+		ravb_ptp_stop(ndev);
+
+	/* Set the config mode to stop the AVB-DMAC's processes */
+	if (ravb_stop_dma(ndev) < 0)
+		netdev_err(ndev,
+			   "device will be stopped after h/w processes are done.\n");
+
+	/* Clear the timestamp list */
+	if (info->gptp || info->ccc_gac) {
+		list_for_each_entry_safe(ts_skb, ts_skb2, &priv->ts_skb_list, list) {
+			list_del(&ts_skb->list);
+			kfree_skb(ts_skb->skb);
+			kfree(ts_skb);
+		}
+	}
+
+	/* PHY disconnect */
+	if (ndev->phydev) {
+		phy_stop(ndev->phydev);
+		phy_disconnect(ndev->phydev);
+		if (of_phy_is_fixed_link(np))
+			of_phy_deregister_fixed_link(np);
+	}
+
+	cancel_work_sync(&priv->work);
+
+	if (info->multi_irqs) {
+		free_irq(priv->tx_irqs[RAVB_NC], ndev);
+		free_irq(priv->rx_irqs[RAVB_NC], ndev);
+		free_irq(priv->tx_irqs[RAVB_BE], ndev);
+		free_irq(priv->rx_irqs[RAVB_BE], ndev);
+		free_irq(priv->emac_irq, ndev);
+		if (info->err_mgmt_irqs) {
+			free_irq(priv->erra_irq, ndev);
+			free_irq(priv->mgmta_irq, ndev);
+		}
+	}
+	free_irq(ndev->irq, ndev);
+
+	if (info->nc_queues)
+		napi_disable(&priv->napi[RAVB_NC]);
+	napi_disable(&priv->napi[RAVB_BE]);
+
+	/* Free all the skb's in the RX queue and the DMA buffers. */
+	ravb_ring_free(ndev, RAVB_BE);
+	if (info->nc_queues)
+		ravb_ring_free(ndev, RAVB_NC);
+
+	return 0;
+}
+
+static int ravb_hwtstamp_get(struct net_device *ndev, struct ifreq *req)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	struct hwtstamp_config config;
+
+	config.flags = 0;
+	config.tx_type = priv->tstamp_tx_ctrl ? HWTSTAMP_TX_ON :
+						HWTSTAMP_TX_OFF;
+	switch (priv->tstamp_rx_ctrl & RAVB_RXTSTAMP_TYPE) {
+	case RAVB_RXTSTAMP_TYPE_V2_L2_EVENT:
+		config.rx_filter = HWTSTAMP_FILTER_PTP_V2_L2_EVENT;
+		break;
+	case RAVB_RXTSTAMP_TYPE_ALL:
+		config.rx_filter = HWTSTAMP_FILTER_ALL;
+		break;
+	default:
+		config.rx_filter = HWTSTAMP_FILTER_NONE;
+	}
+
+	return copy_to_user(req->ifr_data, &config, sizeof(config)) ?
+		-EFAULT : 0;
+}
+
+/* Control hardware time stamping */
+static int ravb_hwtstamp_set(struct net_device *ndev, struct ifreq *req)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	struct hwtstamp_config config;
+	u32 tstamp_rx_ctrl = RAVB_RXTSTAMP_ENABLED;
+	u32 tstamp_tx_ctrl;
+
+	if (copy_from_user(&config, req->ifr_data, sizeof(config)))
+		return -EFAULT;
+
+	switch (config.tx_type) {
+	case HWTSTAMP_TX_OFF:
+		tstamp_tx_ctrl = 0;
+		break;
+	case HWTSTAMP_TX_ON:
+		tstamp_tx_ctrl = RAVB_TXTSTAMP_ENABLED;
+		break;
+	default:
+		return -ERANGE;
+	}
+
+	switch (config.rx_filter) {
+	case HWTSTAMP_FILTER_NONE:
+		tstamp_rx_ctrl = 0;
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
+		tstamp_rx_ctrl |= RAVB_RXTSTAMP_TYPE_V2_L2_EVENT;
+		break;
+	default:
+		config.rx_filter = HWTSTAMP_FILTER_ALL;
+		tstamp_rx_ctrl |= RAVB_RXTSTAMP_TYPE_ALL;
+	}
+
+	priv->tstamp_tx_ctrl = tstamp_tx_ctrl;
+	priv->tstamp_rx_ctrl = tstamp_rx_ctrl;
+
+	return copy_to_user(req->ifr_data, &config, sizeof(config)) ?
+		-EFAULT : 0;
+}
+
+/* ioctl to device function */
+static int ravb_do_ioctl(struct net_device *ndev, struct ifreq *req, int cmd)
+{
+	struct phy_device *phydev = ndev->phydev;
+
+	if (!netif_running(ndev))
+		return -EINVAL;
+
+	if (!phydev)
+		return -ENODEV;
+
+	switch (cmd) {
+	case SIOCGHWTSTAMP:
+		return ravb_hwtstamp_get(ndev, req);
+	case SIOCSHWTSTAMP:
+		return ravb_hwtstamp_set(ndev, req);
+	}
+
+	return phy_mii_ioctl(phydev, req, cmd);
+}
+
+static int ravb_change_mtu(struct net_device *ndev, int new_mtu)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+
+	ndev->mtu = new_mtu;
+
+	if (netif_running(ndev)) {
+		synchronize_irq(priv->emac_irq);
+		ravb_emac_init(ndev);
+	}
+
+	netdev_update_features(ndev);
+
+	return 0;
+}
+
+static void ravb_set_rx_csum(struct net_device *ndev, bool enable)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->lock, flags);
+
+	/* Disable TX and RX */
+	ravb_rcv_snd_disable(ndev);
+
+	/* Modify RX Checksum setting */
+	ravb_modify(ndev, ECMR, ECMR_RCSC, enable ? ECMR_RCSC : 0);
+
+	/* Enable TX and RX */
+	ravb_rcv_snd_enable(ndev);
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static int ravb_set_features_gbeth(struct net_device *ndev,
+				   netdev_features_t features)
+{
+	/* Place holder */
+	return 0;
+}
+
+static int ravb_set_features_rcar(struct net_device *ndev,
+				  netdev_features_t features)
+{
+	netdev_features_t changed = ndev->features ^ features;
+
+	if (changed & NETIF_F_RXCSUM)
+		ravb_set_rx_csum(ndev, features & NETIF_F_RXCSUM);
+
+	ndev->features = features;
+
+	return 0;
+}
+
+static int ravb_set_features(struct net_device *ndev,
+			     netdev_features_t features)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+
+	return info->set_feature(ndev, features);
+}
+
+static const struct net_device_ops ravb_netdev_ops = {
+	.ndo_open		= ravb_open,
+	.ndo_stop		= ravb_close,
+	.ndo_start_xmit		= ravb_start_xmit,
+	.ndo_select_queue	= ravb_select_queue,
+	.ndo_get_stats		= ravb_get_stats,
+	.ndo_set_rx_mode	= ravb_set_rx_mode,
+	.ndo_tx_timeout		= ravb_tx_timeout,
+	.ndo_eth_ioctl		= ravb_do_ioctl,
+	.ndo_change_mtu		= ravb_change_mtu,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_set_features	= ravb_set_features,
+};
+
+/* MDIO bus init function */
+static int ravb_mdio_init(struct ravb_private *priv)
+{
+	struct platform_device *pdev = priv->pdev;
+	struct device *dev = &pdev->dev;
+	struct phy_device *phydev;
+	struct device_node *pn;
+	int error;
+
+	/* Bitbang init */
+	priv->mdiobb.ops = &bb_ops;
+
+	/* MII controller setting */
+	priv->mii_bus = alloc_mdio_bitbang(&priv->mdiobb);
+	if (!priv->mii_bus)
+		return -ENOMEM;
+
+	/* Hook up MII support for ethtool */
+	priv->mii_bus->name = "ravb_mii";
+	priv->mii_bus->parent = dev;
+	snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
+		 pdev->name, pdev->id);
+
+	/* Register MDIO bus */
+	error = of_mdiobus_register(priv->mii_bus, dev->of_node);
+	if (error)
+		goto out_free_bus;
+
+	pn = of_parse_phandle(dev->of_node, "phy-handle", 0);
+	phydev = of_phy_find_device(pn);
+	if (phydev) {
+		phydev->mac_managed_pm = true;
+		put_device(&phydev->mdio.dev);
+	}
+	of_node_put(pn);
+
+	return 0;
+
+out_free_bus:
+	free_mdio_bitbang(priv->mii_bus);
+	return error;
+}
+
+/* MDIO bus release function */
+static int ravb_mdio_release(struct ravb_private *priv)
+{
+	/* Unregister mdio bus */
+	mdiobus_unregister(priv->mii_bus);
+
+	/* Free bitbang info */
+	free_mdio_bitbang(priv->mii_bus);
+
+	return 0;
+}
+
+static const struct ravb_hw_info ravb_gen3_hw_info = {
+	.rx_ring_free = ravb_rx_ring_free_rcar,
+	.rx_ring_format = ravb_rx_ring_format_rcar,
+	.alloc_rx_desc = ravb_alloc_rx_desc_rcar,
+	.receive = ravb_rx_rcar,
+	.set_rate = ravb_set_rate_rcar,
+	.set_feature = ravb_set_features_rcar,
+	.dmac_init = ravb_dmac_init_rcar,
+	.emac_init = ravb_emac_init_rcar,
+	.gstrings_stats = ravb_gstrings_stats,
+	.gstrings_size = sizeof(ravb_gstrings_stats),
+	.net_hw_features = NETIF_F_RXCSUM,
+	.net_features = NETIF_F_RXCSUM,
+	.stats_len = ARRAY_SIZE(ravb_gstrings_stats),
+	.max_rx_len = RX_BUF_SZ + RAVB_ALIGN - 1,
+	.tccr_mask = TCCR_TSRQ0 | TCCR_TSRQ1 | TCCR_TSRQ2 | TCCR_TSRQ3,
+	.rx_max_buf_size = SZ_2K,
+	.internal_delay = 1,
+	.tx_counters = 1,
+	.multi_irqs = 1,
+	.irq_en_dis = 1,
+	.ccc_gac = 1,
+	.nc_queues = 1,
+	.magic_pkt = 1,
+};
+
+static const struct ravb_hw_info ravb_gen2_hw_info = {
+	.rx_ring_free = ravb_rx_ring_free_rcar,
+	.rx_ring_format = ravb_rx_ring_format_rcar,
+	.alloc_rx_desc = ravb_alloc_rx_desc_rcar,
+	.receive = ravb_rx_rcar,
+	.set_rate = ravb_set_rate_rcar,
+	.set_feature = ravb_set_features_rcar,
+	.dmac_init = ravb_dmac_init_rcar,
+	.emac_init = ravb_emac_init_rcar,
+	.gstrings_stats = ravb_gstrings_stats,
+	.gstrings_size = sizeof(ravb_gstrings_stats),
+	.net_hw_features = NETIF_F_RXCSUM,
+	.net_features = NETIF_F_RXCSUM,
+	.stats_len = ARRAY_SIZE(ravb_gstrings_stats),
+	.max_rx_len = RX_BUF_SZ + RAVB_ALIGN - 1,
+	.tccr_mask = TCCR_TSRQ0 | TCCR_TSRQ1 | TCCR_TSRQ2 | TCCR_TSRQ3,
+	.rx_max_buf_size = SZ_2K,
+	.aligned_tx = 1,
+	.gptp = 1,
+	.nc_queues = 1,
+	.magic_pkt = 1,
+};
+
+static const struct ravb_hw_info ravb_rzv2m_hw_info = {
+	.rx_ring_free = ravb_rx_ring_free_rcar,
+	.rx_ring_format = ravb_rx_ring_format_rcar,
+	.alloc_rx_desc = ravb_alloc_rx_desc_rcar,
+	.receive = ravb_rx_rcar,
+	.set_rate = ravb_set_rate_rcar,
+	.set_feature = ravb_set_features_rcar,
+	.dmac_init = ravb_dmac_init_rcar,
+	.emac_init = ravb_emac_init_rcar,
+	.gstrings_stats = ravb_gstrings_stats,
+	.gstrings_size = sizeof(ravb_gstrings_stats),
+	.net_hw_features = NETIF_F_RXCSUM,
+	.net_features = NETIF_F_RXCSUM,
+	.stats_len = ARRAY_SIZE(ravb_gstrings_stats),
+	.max_rx_len = RX_BUF_SZ + RAVB_ALIGN - 1,
+	.tccr_mask = TCCR_TSRQ0 | TCCR_TSRQ1 | TCCR_TSRQ2 | TCCR_TSRQ3,
+	.rx_max_buf_size = SZ_2K,
+	.multi_irqs = 1,
+	.err_mgmt_irqs = 1,
+	.gptp = 1,
+	.gptp_ref_clk = 1,
+	.nc_queues = 1,
+	.magic_pkt = 1,
+};
+
+static const struct ravb_hw_info gbeth_hw_info = {
+	.rx_ring_free = ravb_rx_ring_free_gbeth,
+	.rx_ring_format = ravb_rx_ring_format_gbeth,
+	.alloc_rx_desc = ravb_alloc_rx_desc_gbeth,
+	.receive = ravb_rx_gbeth,
+	.set_rate = ravb_set_rate_gbeth,
+	.set_feature = ravb_set_features_gbeth,
+	.dmac_init = ravb_dmac_init_gbeth,
+	.emac_init = ravb_emac_init_gbeth,
+	.gstrings_stats = ravb_gstrings_stats_gbeth,
+	.gstrings_size = sizeof(ravb_gstrings_stats_gbeth),
+	.stats_len = ARRAY_SIZE(ravb_gstrings_stats_gbeth),
+	.max_rx_len = ALIGN(GBETH_RX_BUFF_MAX, RAVB_ALIGN),
+	.tccr_mask = TCCR_TSRQ0,
+	.rx_max_buf_size = SZ_8K,
+	.aligned_tx = 1,
+	.tx_counters = 1,
+	.carrier_counters = 1,
+	.half_duplex = 1,
+};
+
+static const struct of_device_id ravb_match_table[] = {
+	{ .compatible = "renesas,etheravb-r8a7790", .data = &ravb_gen2_hw_info },
+	{ .compatible = "renesas,etheravb-r8a7794", .data = &ravb_gen2_hw_info },
+	{ .compatible = "renesas,etheravb-rcar-gen2", .data = &ravb_gen2_hw_info },
+	{ .compatible = "renesas,etheravb-r8a7795", .data = &ravb_gen3_hw_info },
+	{ .compatible = "renesas,etheravb-rcar-gen3", .data = &ravb_gen3_hw_info },
+	{ .compatible = "renesas,etheravb-rcar-gen4", .data = &ravb_gen3_hw_info },
+	{ .compatible = "renesas,etheravb-rzv2m", .data = &ravb_rzv2m_hw_info },
+	{ .compatible = "renesas,rzg2l-gbeth", .data = &gbeth_hw_info },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, ravb_match_table);
+
+static int ravb_set_gti(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	struct device *dev = ndev->dev.parent;
+	unsigned long rate;
+	uint64_t inc;
+
+	if (info->gptp_ref_clk)
+		rate = clk_get_rate(priv->gptp_clk);
+	else
+		rate = clk_get_rate(priv->clk);
+	if (!rate)
+		return -EINVAL;
+
+	inc = div64_ul(1000000000ULL << 20, rate);
+
+	if (inc < GTI_TIV_MIN || inc > GTI_TIV_MAX) {
+		dev_err(dev, "gti.tiv increment 0x%llx is outside the range 0x%x - 0x%x\n",
+			inc, GTI_TIV_MIN, GTI_TIV_MAX);
+		return -EINVAL;
+	}
+
+	ravb_write(ndev, inc, GTI);
+
+	return 0;
+}
+
+static int ravb_set_config_mode(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	int error;
+
+	if (info->gptp) {
+		error = ravb_set_opmode(ndev, CCC_OPC_CONFIG);
+		if (error)
+			return error;
+		/* Set CSEL value */
+		ravb_modify(ndev, CCC, CCC_CSEL, CCC_CSEL_HPB);
+	} else if (info->ccc_gac) {
+		error = ravb_set_opmode(ndev, CCC_OPC_CONFIG | CCC_GAC | CCC_CSEL_HPB);
+	} else {
+		error = ravb_set_opmode(ndev, CCC_OPC_CONFIG);
+	}
+
+	return error;
+}
+
+/* Set tx and rx clock internal delay modes */
+static void ravb_parse_delay_mode(struct device_node *np, struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	bool explicit_delay = false;
+	u32 delay;
+
+	if (!of_property_read_u32(np, "rx-internal-delay-ps", &delay)) {
+		/* Valid values are 0 and 1800, according to DT bindings */
+		priv->rxcidm = !!delay;
+		explicit_delay = true;
+	}
+	if (!of_property_read_u32(np, "tx-internal-delay-ps", &delay)) {
+		/* Valid values are 0 and 2000, according to DT bindings */
+		priv->txcidm = !!delay;
+		explicit_delay = true;
+	}
+
+	if (explicit_delay)
+		return;
+
+	/* Fall back to legacy rgmii-*id behavior */
+	if (priv->phy_interface == PHY_INTERFACE_MODE_RGMII_ID ||
+	    priv->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) {
+		priv->rxcidm = 1;
+		priv->rgmii_override = 1;
+	}
+
+	if (priv->phy_interface == PHY_INTERFACE_MODE_RGMII_ID ||
+	    priv->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) {
+		priv->txcidm = 1;
+		priv->rgmii_override = 1;
+	}
+}
+
+static void ravb_set_delay_mode(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	u32 set = 0;
+
+	if (priv->rxcidm)
+		set |= APSR_RDM;
+	if (priv->txcidm)
+		set |= APSR_TDM;
+	ravb_modify(ndev, APSR, APSR_RDM | APSR_TDM, set);
+}
+
+static int ravb_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	const struct ravb_hw_info *info;
+	struct reset_control *rstc;
+	struct ravb_private *priv;
+	struct net_device *ndev;
+	int error, irq, q;
+	struct resource *res;
+	int i;
+
+	if (!np) {
+		dev_err(&pdev->dev,
+			"this driver is required to be instantiated from device tree\n");
+		return -EINVAL;
+	}
+
+	rstc = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL);
+	if (IS_ERR(rstc))
+		return dev_err_probe(&pdev->dev, PTR_ERR(rstc),
+				     "failed to get cpg reset\n");
+
+	ndev = alloc_etherdev_mqs(sizeof(struct ravb_private),
+				  NUM_TX_QUEUE, NUM_RX_QUEUE);
+	if (!ndev)
+		return -ENOMEM;
+
+	info = of_device_get_match_data(&pdev->dev);
+
+	ndev->features = info->net_features;
+	ndev->hw_features = info->net_hw_features;
+
+	error = reset_control_deassert(rstc);
+	if (error)
+		goto out_free_netdev;
+
+	pm_runtime_enable(&pdev->dev);
+	error = pm_runtime_resume_and_get(&pdev->dev);
+	if (error < 0)
+		goto out_rpm_disable;
+
+	if (info->multi_irqs) {
+		if (info->err_mgmt_irqs)
+			irq = platform_get_irq_byname(pdev, "dia");
+		else
+			irq = platform_get_irq_byname(pdev, "ch22");
+	} else {
+		irq = platform_get_irq(pdev, 0);
+	}
+	if (irq < 0) {
+		error = irq;
+		goto out_release;
+	}
+	ndev->irq = irq;
+
+	SET_NETDEV_DEV(ndev, &pdev->dev);
+
+	priv = netdev_priv(ndev);
+	priv->info = info;
+	priv->rstc = rstc;
+	priv->ndev = ndev;
+	priv->pdev = pdev;
+	priv->num_tx_ring[RAVB_BE] = BE_TX_RING_SIZE;
+	priv->num_rx_ring[RAVB_BE] = BE_RX_RING_SIZE;
+	if (info->nc_queues) {
+		priv->num_tx_ring[RAVB_NC] = NC_TX_RING_SIZE;
+		priv->num_rx_ring[RAVB_NC] = NC_RX_RING_SIZE;
+	}
+
+	priv->addr = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(priv->addr)) {
+		error = PTR_ERR(priv->addr);
+		goto out_release;
+	}
+
+	/* The Ether-specific entries in the device structure. */
+	ndev->base_addr = res->start;
+
+	spin_lock_init(&priv->lock);
+	INIT_WORK(&priv->work, ravb_tx_timeout_work);
+
+	error = of_get_phy_mode(np, &priv->phy_interface);
+	if (error && error != -ENODEV)
+		goto out_release;
+
+	priv->no_avb_link = of_property_read_bool(np, "renesas,no-ether-link");
+	priv->avb_link_active_low =
+		of_property_read_bool(np, "renesas,ether-link-active-low");
+
+	if (info->multi_irqs) {
+		if (info->err_mgmt_irqs)
+			irq = platform_get_irq_byname(pdev, "line3");
+		else
+			irq = platform_get_irq_byname(pdev, "ch24");
+		if (irq < 0) {
+			error = irq;
+			goto out_release;
+		}
+		priv->emac_irq = irq;
+		for (i = 0; i < NUM_RX_QUEUE; i++) {
+			irq = platform_get_irq_byname(pdev, ravb_rx_irqs[i]);
+			if (irq < 0) {
+				error = irq;
+				goto out_release;
+			}
+			priv->rx_irqs[i] = irq;
+		}
+		for (i = 0; i < NUM_TX_QUEUE; i++) {
+			irq = platform_get_irq_byname(pdev, ravb_tx_irqs[i]);
+			if (irq < 0) {
+				error = irq;
+				goto out_release;
+			}
+			priv->tx_irqs[i] = irq;
+		}
+
+		if (info->err_mgmt_irqs) {
+			irq = platform_get_irq_byname(pdev, "err_a");
+			if (irq < 0) {
+				error = irq;
+				goto out_release;
+			}
+			priv->erra_irq = irq;
+
+			irq = platform_get_irq_byname(pdev, "mgmt_a");
+			if (irq < 0) {
+				error = irq;
+				goto out_release;
+			}
+			priv->mgmta_irq = irq;
+		}
+	}
+
+	priv->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(priv->clk)) {
+		error = PTR_ERR(priv->clk);
+		goto out_release;
+	}
+
+	priv->refclk = devm_clk_get_optional(&pdev->dev, "refclk");
+	if (IS_ERR(priv->refclk)) {
+		error = PTR_ERR(priv->refclk);
+		goto out_release;
+	}
+	clk_prepare_enable(priv->refclk);
+
+	if (info->gptp_ref_clk) {
+		priv->gptp_clk = devm_clk_get(&pdev->dev, "gptp");
+		if (IS_ERR(priv->gptp_clk)) {
+			error = PTR_ERR(priv->gptp_clk);
+			goto out_disable_refclk;
+		}
+		clk_prepare_enable(priv->gptp_clk);
+	}
+
+	ndev->max_mtu = info->rx_max_buf_size - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN);
+	ndev->min_mtu = ETH_MIN_MTU;
+
+	/* FIXME: R-Car Gen2 has 4byte alignment restriction for tx buffer
+	 * Use two descriptor to handle such situation. First descriptor to
+	 * handle aligned data buffer and second descriptor to handle the
+	 * overflow data because of alignment.
+	 */
+	priv->num_tx_desc = info->aligned_tx ? 2 : 1;
+
+	/* Set function */
+	ndev->netdev_ops = &ravb_netdev_ops;
+	ndev->ethtool_ops = &ravb_ethtool_ops;
+
+	/* Set AVB config mode */
+	error = ravb_set_config_mode(ndev);
+	if (error)
+		goto out_disable_gptp_clk;
+
+	if (info->gptp || info->ccc_gac) {
+		/* Set GTI value */
+		error = ravb_set_gti(ndev);
+		if (error)
+			goto out_disable_gptp_clk;
+
+		/* Request GTI loading */
+		ravb_modify(ndev, GCCR, GCCR_LTI, GCCR_LTI);
+	}
+
+	if (info->internal_delay) {
+		ravb_parse_delay_mode(np, ndev);
+		ravb_set_delay_mode(ndev);
+	}
+
+	/* Allocate descriptor base address table */
+	priv->desc_bat_size = sizeof(struct ravb_desc) * DBAT_ENTRY_NUM;
+	priv->desc_bat = dma_alloc_coherent(ndev->dev.parent, priv->desc_bat_size,
+					    &priv->desc_bat_dma, GFP_KERNEL);
+	if (!priv->desc_bat) {
+		dev_err(&pdev->dev,
+			"Cannot allocate desc base address table (size %d bytes)\n",
+			priv->desc_bat_size);
+		error = -ENOMEM;
+		goto out_disable_gptp_clk;
+	}
+	for (q = RAVB_BE; q < DBAT_ENTRY_NUM; q++)
+		priv->desc_bat[q].die_dt = DT_EOS;
+	ravb_write(ndev, priv->desc_bat_dma, DBAT);
+
+	/* Initialise HW timestamp list */
+	INIT_LIST_HEAD(&priv->ts_skb_list);
+
+	/* Initialise PTP Clock driver */
+	if (info->ccc_gac)
+		ravb_ptp_init(ndev, pdev);
+
+	/* Debug message level */
+	priv->msg_enable = RAVB_DEF_MSG_ENABLE;
+
+	/* Read and set MAC address */
+	ravb_read_mac_address(np, ndev);
+	if (!is_valid_ether_addr(ndev->dev_addr)) {
+		dev_warn(&pdev->dev,
+			 "no valid MAC address supplied, using a random one\n");
+		eth_hw_addr_random(ndev);
+	}
+
+	/* MDIO bus init */
+	error = ravb_mdio_init(priv);
+	if (error) {
+		dev_err(&pdev->dev, "failed to initialize MDIO\n");
+		goto out_dma_free;
+	}
+
+	netif_napi_add(ndev, &priv->napi[RAVB_BE], ravb_poll);
+	if (info->nc_queues)
+		netif_napi_add(ndev, &priv->napi[RAVB_NC], ravb_poll);
+
+	/* Network device register */
+	error = register_netdev(ndev);
+	if (error)
+		goto out_napi_del;
+
+	device_set_wakeup_capable(&pdev->dev, 1);
+
+	/* Print device information */
+	netdev_info(ndev, "Base address at %#x, %pM, IRQ %d.\n",
+		    (u32)ndev->base_addr, ndev->dev_addr, ndev->irq);
+
+	platform_set_drvdata(pdev, ndev);
+
+	return 0;
+
+out_napi_del:
+	if (info->nc_queues)
+		netif_napi_del(&priv->napi[RAVB_NC]);
+
+	netif_napi_del(&priv->napi[RAVB_BE]);
+	ravb_mdio_release(priv);
+out_dma_free:
+	dma_free_coherent(ndev->dev.parent, priv->desc_bat_size, priv->desc_bat,
+			  priv->desc_bat_dma);
+
+	/* Stop PTP Clock driver */
+	if (info->ccc_gac)
+		ravb_ptp_stop(ndev);
+out_disable_gptp_clk:
+	clk_disable_unprepare(priv->gptp_clk);
+out_disable_refclk:
+	clk_disable_unprepare(priv->refclk);
+out_release:
+	pm_runtime_put(&pdev->dev);
+out_rpm_disable:
+	pm_runtime_disable(&pdev->dev);
+	reset_control_assert(rstc);
+out_free_netdev:
+	free_netdev(ndev);
+	return error;
+}
+
+static int ravb_remove(struct platform_device *pdev)
+{
+	struct net_device *ndev = platform_get_drvdata(pdev);
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+
+	unregister_netdev(ndev);
+	if (info->nc_queues)
+		netif_napi_del(&priv->napi[RAVB_NC]);
+	netif_napi_del(&priv->napi[RAVB_BE]);
+
+	ravb_mdio_release(priv);
+
+	/* Stop PTP Clock driver */
+	if (info->ccc_gac)
+		ravb_ptp_stop(ndev);
+
+	dma_free_coherent(ndev->dev.parent, priv->desc_bat_size, priv->desc_bat,
+			  priv->desc_bat_dma);
+
+	ravb_set_opmode(ndev, CCC_OPC_RESET);
+
+	clk_disable_unprepare(priv->gptp_clk);
+	clk_disable_unprepare(priv->refclk);
+
+	pm_runtime_put_sync(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+	reset_control_assert(priv->rstc);
+	free_netdev(ndev);
+	platform_set_drvdata(pdev, NULL);
+
+	return 0;
+}
+
+static int ravb_wol_setup(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+
+	/* Disable interrupts by clearing the interrupt masks. */
+	ravb_write(ndev, 0, RIC0);
+	ravb_write(ndev, 0, RIC2);
+	ravb_write(ndev, 0, TIC);
+
+	/* Only allow ECI interrupts */
+	synchronize_irq(priv->emac_irq);
+	if (info->nc_queues)
+		napi_disable(&priv->napi[RAVB_NC]);
+	napi_disable(&priv->napi[RAVB_BE]);
+	ravb_write(ndev, ECSIPR_MPDIP, ECSIPR);
+
+	/* Enable MagicPacket */
+	ravb_modify(ndev, ECMR, ECMR_MPDE, ECMR_MPDE);
+
+	return enable_irq_wake(priv->emac_irq);
+}
+
+static int ravb_wol_restore(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+
+	if (info->nc_queues)
+		napi_enable(&priv->napi[RAVB_NC]);
+	napi_enable(&priv->napi[RAVB_BE]);
+
+	/* Disable MagicPacket */
+	ravb_modify(ndev, ECMR, ECMR_MPDE, 0);
+
+	ravb_close(ndev);
+
+	return disable_irq_wake(priv->emac_irq);
+}
+
+static int __maybe_unused ravb_suspend(struct device *dev)
+{
+	struct net_device *ndev = dev_get_drvdata(dev);
+	struct ravb_private *priv = netdev_priv(ndev);
+	int ret;
+
+	if (!netif_running(ndev))
+		return 0;
+
+	netif_device_detach(ndev);
+
+	if (priv->wol_enabled)
+		ret = ravb_wol_setup(ndev);
+	else
+		ret = ravb_close(ndev);
+
+	if (priv->info->ccc_gac)
+		ravb_ptp_stop(ndev);
+
+	return ret;
+}
+
+static int __maybe_unused ravb_resume(struct device *dev)
+{
+	struct net_device *ndev = dev_get_drvdata(dev);
+	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
+	int ret = 0;
+
+	/* If WoL is enabled set reset mode to rearm the WoL logic */
+	if (priv->wol_enabled) {
+		ret = ravb_set_opmode(ndev, CCC_OPC_RESET);
+		if (ret)
+			return ret;
+	}
+
+	/* All register have been reset to default values.
+	 * Restore all registers which where setup at probe time and
+	 * reopen device if it was running before system suspended.
+	 */
+
+	/* Set AVB config mode */
+	ret = ravb_set_config_mode(ndev);
+	if (ret)
+		return ret;
+
+	if (info->gptp || info->ccc_gac) {
+		/* Set GTI value */
+		ret = ravb_set_gti(ndev);
+		if (ret)
+			return ret;
+
+		/* Request GTI loading */
+		ravb_modify(ndev, GCCR, GCCR_LTI, GCCR_LTI);
+	}
+
+	if (info->internal_delay)
+		ravb_set_delay_mode(ndev);
+
+	/* Restore descriptor base address table */
+	ravb_write(ndev, priv->desc_bat_dma, DBAT);
+
+	if (priv->info->ccc_gac)
+		ravb_ptp_init(ndev, priv->pdev);
+
+	if (netif_running(ndev)) {
+		if (priv->wol_enabled) {
+			ret = ravb_wol_restore(ndev);
+			if (ret)
+				return ret;
+		}
+		ret = ravb_open(ndev);
+		if (ret < 0)
+			return ret;
+		ravb_set_rx_mode(ndev);
+		netif_device_attach(ndev);
+	}
+
+	return ret;
+}
+
+static int __maybe_unused ravb_runtime_nop(struct device *dev)
+{
+	/* Runtime PM callback shared between ->runtime_suspend()
+	 * and ->runtime_resume(). Simply returns success.
+	 *
+	 * This driver re-initializes all registers after
+	 * pm_runtime_get_sync() anyway so there is no need
+	 * to save and restore registers here.
+	 */
+	return 0;
+}
+
+static const struct dev_pm_ops ravb_dev_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(ravb_suspend, ravb_resume)
+	SET_RUNTIME_PM_OPS(ravb_runtime_nop, ravb_runtime_nop, NULL)
+};
+
+static struct platform_driver ravb_driver = {
+	.probe		= ravb_probe,
+	.remove		= ravb_remove,
+	.driver = {
+		.name	= "ravb",
+		.pm	= &ravb_dev_pm_ops,
+		.of_match_table = ravb_match_table,
+	},
+};
+
+module_platform_driver(ravb_driver);
+
+MODULE_AUTHOR("Mitsuhiro Kimura, Masaru Nagai");
+MODULE_DESCRIPTION("Renesas Ethernet AVB driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/ethernet/renesas/ravb_ptp.c b/drivers/net/ethernet/renesas/ravb_ptp.c
new file mode 100644
index 000000000..87c4306d6
--- /dev/null
+++ b/drivers/net/ethernet/renesas/ravb_ptp.c
@@ -0,0 +1,358 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* PTP 1588 clock using the Renesas Ethernet AVB
+ *
+ * Copyright (C) 2013-2015 Renesas Electronics Corporation
+ * Copyright (C) 2015 Renesas Solutions Corp.
+ * Copyright (C) 2015-2016 Cogent Embedded, Inc. <source@cogentembedded.com>
+ */
+
+#include "ravb.h"
+
+static int ravb_ptp_tcr_request(struct ravb_private *priv, u32 request)
+{
+	struct net_device *ndev = priv->ndev;
+	int error;
+
+	error = ravb_wait(ndev, GCCR, GCCR_TCR, GCCR_TCR_NOREQ);
+	if (error)
+		return error;
+
+	ravb_modify(ndev, GCCR, request, request);
+	return ravb_wait(ndev, GCCR, GCCR_TCR, GCCR_TCR_NOREQ);
+}
+
+/* Caller must hold the lock */
+static int ravb_ptp_time_read(struct ravb_private *priv, struct timespec64 *ts)
+{
+	struct net_device *ndev = priv->ndev;
+	int error;
+
+	error = ravb_ptp_tcr_request(priv, GCCR_TCR_CAPTURE);
+	if (error)
+		return error;
+
+	ts->tv_nsec = ravb_read(ndev, GCT0);
+	ts->tv_sec  = ravb_read(ndev, GCT1) |
+		((s64)ravb_read(ndev, GCT2) << 32);
+
+	return 0;
+}
+
+/* Caller must hold the lock */
+static int ravb_ptp_time_write(struct ravb_private *priv,
+				const struct timespec64 *ts)
+{
+	struct net_device *ndev = priv->ndev;
+	int error;
+	u32 gccr;
+
+	error = ravb_ptp_tcr_request(priv, GCCR_TCR_RESET);
+	if (error)
+		return error;
+
+	gccr = ravb_read(ndev, GCCR);
+	if (gccr & GCCR_LTO)
+		return -EBUSY;
+	ravb_write(ndev, ts->tv_nsec, GTO0);
+	ravb_write(ndev, ts->tv_sec,  GTO1);
+	ravb_write(ndev, (ts->tv_sec >> 32) & 0xffff, GTO2);
+	ravb_write(ndev, gccr | GCCR_LTO, GCCR);
+
+	return 0;
+}
+
+/* Caller must hold the lock */
+static int ravb_ptp_update_compare(struct ravb_private *priv, u32 ns)
+{
+	struct net_device *ndev = priv->ndev;
+	/* When the comparison value (GPTC.PTCV) is in range of
+	 * [x-1 to x+1] (x is the configured increment value in
+	 * GTI.TIV), it may happen that a comparison match is
+	 * not detected when the timer wraps around.
+	 */
+	u32 gti_ns_plus_1 = (priv->ptp.current_addend >> 20) + 1;
+	u32 gccr;
+
+	if (ns < gti_ns_plus_1)
+		ns = gti_ns_plus_1;
+	else if (ns > 0 - gti_ns_plus_1)
+		ns = 0 - gti_ns_plus_1;
+
+	gccr = ravb_read(ndev, GCCR);
+	if (gccr & GCCR_LPTC)
+		return -EBUSY;
+	ravb_write(ndev, ns, GPTC);
+	ravb_write(ndev, gccr | GCCR_LPTC, GCCR);
+
+	return 0;
+}
+
+/* PTP clock operations */
+static int ravb_ptp_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
+{
+	struct ravb_private *priv = container_of(ptp, struct ravb_private,
+						 ptp.info);
+	struct net_device *ndev = priv->ndev;
+	unsigned long flags;
+	u32 diff, addend;
+	bool neg_adj = false;
+	u32 gccr;
+
+	if (ppb < 0) {
+		neg_adj = true;
+		ppb = -ppb;
+	}
+	addend = priv->ptp.default_addend;
+	diff = div_u64((u64)addend * ppb, NSEC_PER_SEC);
+
+	addend = neg_adj ? addend - diff : addend + diff;
+
+	spin_lock_irqsave(&priv->lock, flags);
+
+	priv->ptp.current_addend = addend;
+
+	gccr = ravb_read(ndev, GCCR);
+	if (gccr & GCCR_LTI) {
+		spin_unlock_irqrestore(&priv->lock, flags);
+		return -EBUSY;
+	}
+	ravb_write(ndev, addend & GTI_TIV, GTI);
+	ravb_write(ndev, gccr | GCCR_LTI, GCCR);
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	return 0;
+}
+
+static int ravb_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)
+{
+	struct ravb_private *priv = container_of(ptp, struct ravb_private,
+						 ptp.info);
+	struct timespec64 ts;
+	unsigned long flags;
+	int error;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	error = ravb_ptp_time_read(priv, &ts);
+	if (!error) {
+		u64 now = ktime_to_ns(timespec64_to_ktime(ts));
+
+		ts = ns_to_timespec64(now + delta);
+		error = ravb_ptp_time_write(priv, &ts);
+	}
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	return error;
+}
+
+static int ravb_ptp_gettime64(struct ptp_clock_info *ptp, struct timespec64 *ts)
+{
+	struct ravb_private *priv = container_of(ptp, struct ravb_private,
+						 ptp.info);
+	unsigned long flags;
+	int error;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	error = ravb_ptp_time_read(priv, ts);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	return error;
+}
+
+static int ravb_ptp_settime64(struct ptp_clock_info *ptp,
+			      const struct timespec64 *ts)
+{
+	struct ravb_private *priv = container_of(ptp, struct ravb_private,
+						 ptp.info);
+	unsigned long flags;
+	int error;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	error = ravb_ptp_time_write(priv, ts);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	return error;
+}
+
+static int ravb_ptp_extts(struct ptp_clock_info *ptp,
+			  struct ptp_extts_request *req, int on)
+{
+	struct ravb_private *priv = container_of(ptp, struct ravb_private,
+						 ptp.info);
+	const struct ravb_hw_info *info = priv->info;
+	struct net_device *ndev = priv->ndev;
+	unsigned long flags;
+
+	/* Reject requests with unsupported flags */
+	if (req->flags & ~(PTP_ENABLE_FEATURE |
+			   PTP_RISING_EDGE |
+			   PTP_FALLING_EDGE |
+			   PTP_STRICT_FLAGS))
+		return -EOPNOTSUPP;
+
+	if (req->index)
+		return -EINVAL;
+
+	if (priv->ptp.extts[req->index] == on)
+		return 0;
+	priv->ptp.extts[req->index] = on;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (!info->irq_en_dis)
+		ravb_modify(ndev, GIC, GIC_PTCE, on ? GIC_PTCE : 0);
+	else if (on)
+		ravb_write(ndev, GIE_PTCS, GIE);
+	else
+		ravb_write(ndev, GID_PTCD, GID);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	return 0;
+}
+
+static int ravb_ptp_perout(struct ptp_clock_info *ptp,
+			   struct ptp_perout_request *req, int on)
+{
+	struct ravb_private *priv = container_of(ptp, struct ravb_private,
+						 ptp.info);
+	const struct ravb_hw_info *info = priv->info;
+	struct net_device *ndev = priv->ndev;
+	struct ravb_ptp_perout *perout;
+	unsigned long flags;
+	int error = 0;
+
+	/* Reject requests with unsupported flags */
+	if (req->flags)
+		return -EOPNOTSUPP;
+
+	if (req->index)
+		return -EINVAL;
+
+	if (on) {
+		u64 start_ns;
+		u64 period_ns;
+
+		start_ns = req->start.sec * NSEC_PER_SEC + req->start.nsec;
+		period_ns = req->period.sec * NSEC_PER_SEC + req->period.nsec;
+
+		if (start_ns > U32_MAX) {
+			netdev_warn(ndev,
+				    "ptp: start value (nsec) is over limit. Maximum size of start is only 32 bits\n");
+			return -ERANGE;
+		}
+
+		if (period_ns > U32_MAX) {
+			netdev_warn(ndev,
+				    "ptp: period value (nsec) is over limit. Maximum size of period is only 32 bits\n");
+			return -ERANGE;
+		}
+
+		spin_lock_irqsave(&priv->lock, flags);
+
+		perout = &priv->ptp.perout[req->index];
+		perout->target = (u32)start_ns;
+		perout->period = (u32)period_ns;
+		error = ravb_ptp_update_compare(priv, (u32)start_ns);
+		if (!error) {
+			/* Unmask interrupt */
+			if (!info->irq_en_dis)
+				ravb_modify(ndev, GIC, GIC_PTME, GIC_PTME);
+			else
+				ravb_write(ndev, GIE_PTMS0, GIE);
+		}
+	} else	{
+		spin_lock_irqsave(&priv->lock, flags);
+
+		perout = &priv->ptp.perout[req->index];
+		perout->period = 0;
+
+		/* Mask interrupt */
+		if (!info->irq_en_dis)
+			ravb_modify(ndev, GIC, GIC_PTME, 0);
+		else
+			ravb_write(ndev, GID_PTMD0, GID);
+	}
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	return error;
+}
+
+static int ravb_ptp_enable(struct ptp_clock_info *ptp,
+			   struct ptp_clock_request *req, int on)
+{
+	switch (req->type) {
+	case PTP_CLK_REQ_EXTTS:
+		return ravb_ptp_extts(ptp, &req->extts, on);
+	case PTP_CLK_REQ_PEROUT:
+		return ravb_ptp_perout(ptp, &req->perout, on);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static const struct ptp_clock_info ravb_ptp_info = {
+	.owner		= THIS_MODULE,
+	.name		= "ravb clock",
+	.max_adj	= 50000000,
+	.n_ext_ts	= N_EXT_TS,
+	.n_per_out	= N_PER_OUT,
+	.adjfreq	= ravb_ptp_adjfreq,
+	.adjtime	= ravb_ptp_adjtime,
+	.gettime64	= ravb_ptp_gettime64,
+	.settime64	= ravb_ptp_settime64,
+	.enable		= ravb_ptp_enable,
+};
+
+/* Caller must hold the lock */
+void ravb_ptp_interrupt(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	u32 gis = ravb_read(ndev, GIS);
+
+	gis &= ravb_read(ndev, GIC);
+	if (gis & GIS_PTCF) {
+		struct ptp_clock_event event;
+
+		event.type = PTP_CLOCK_EXTTS;
+		event.index = 0;
+		event.timestamp = ravb_read(ndev, GCPT);
+		ptp_clock_event(priv->ptp.clock, &event);
+	}
+	if (gis & GIS_PTMF) {
+		struct ravb_ptp_perout *perout = priv->ptp.perout;
+
+		if (perout->period) {
+			perout->target += perout->period;
+			ravb_ptp_update_compare(priv, perout->target);
+		}
+	}
+
+	ravb_write(ndev, ~(gis | GIS_RESERVED), GIS);
+}
+
+void ravb_ptp_init(struct net_device *ndev, struct platform_device *pdev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	unsigned long flags;
+
+	priv->ptp.info = ravb_ptp_info;
+
+	priv->ptp.default_addend = ravb_read(ndev, GTI);
+	priv->ptp.current_addend = priv->ptp.default_addend;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	ravb_wait(ndev, GCCR, GCCR_TCR, GCCR_TCR_NOREQ);
+	ravb_modify(ndev, GCCR, GCCR_TCSS, GCCR_TCSS_ADJGPTP);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	priv->ptp.clock = ptp_clock_register(&priv->ptp.info, &pdev->dev);
+}
+
+void ravb_ptp_stop(struct net_device *ndev)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+
+	ravb_write(ndev, 0, GIC);
+	ravb_write(ndev, 0, GIS);
+
+	ptp_clock_unregister(priv->ptp.clock);
+}
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
new file mode 100644
index 000000000..14dc5833c
--- /dev/null
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -0,0 +1,3555 @@
+// SPDX-License-Identifier: GPL-2.0
+/*  SuperH Ethernet device driver
+ *
+ *  Copyright (C) 2014 Renesas Electronics Corporation
+ *  Copyright (C) 2006-2012 Nobuhiro Iwamatsu
+ *  Copyright (C) 2008-2014 Renesas Solutions Corp.
+ *  Copyright (C) 2013-2017 Cogent Embedded, Inc.
+ *  Copyright (C) 2014 Codethink Limited
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/etherdevice.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/mdio-bitbang.h>
+#include <linux/netdevice.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/of_net.h>
+#include <linux/phy.h>
+#include <linux/cache.h>
+#include <linux/io.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/ethtool.h>
+#include <linux/if_vlan.h>
+#include <linux/sh_eth.h>
+#include <linux/of_mdio.h>
+
+#include "sh_eth.h"
+
+#define SH_ETH_DEF_MSG_ENABLE \
+		(NETIF_MSG_LINK	| \
+		NETIF_MSG_TIMER	| \
+		NETIF_MSG_RX_ERR| \
+		NETIF_MSG_TX_ERR)
+
+#define SH_ETH_OFFSET_INVALID	((u16)~0)
+
+#define SH_ETH_OFFSET_DEFAULTS			\
+	[0 ... SH_ETH_MAX_REGISTER_OFFSET - 1] = SH_ETH_OFFSET_INVALID
+
+/* use some intentionally tricky logic here to initialize the whole struct to
+ * 0xffff, but then override certain fields, requiring us to indicate that we
+ * "know" that there are overrides in this structure, and we'll need to disable
+ * that warning from W=1 builds. GCC has supported this option since 4.2.X, but
+ * the macros available to do this only define GCC 8.
+ */
+__diag_push();
+__diag_ignore(GCC, 8, "-Woverride-init",
+	      "logic to initialize all and then override some is OK");
+static const u16 sh_eth_offset_gigabit[SH_ETH_MAX_REGISTER_OFFSET] = {
+	SH_ETH_OFFSET_DEFAULTS,
+
+	[EDSR]		= 0x0000,
+	[EDMR]		= 0x0400,
+	[EDTRR]		= 0x0408,
+	[EDRRR]		= 0x0410,
+	[EESR]		= 0x0428,
+	[EESIPR]	= 0x0430,
+	[TDLAR]		= 0x0010,
+	[TDFAR]		= 0x0014,
+	[TDFXR]		= 0x0018,
+	[TDFFR]		= 0x001c,
+	[RDLAR]		= 0x0030,
+	[RDFAR]		= 0x0034,
+	[RDFXR]		= 0x0038,
+	[RDFFR]		= 0x003c,
+	[TRSCER]	= 0x0438,
+	[RMFCR]		= 0x0440,
+	[TFTR]		= 0x0448,
+	[FDR]		= 0x0450,
+	[RMCR]		= 0x0458,
+	[RPADIR]	= 0x0460,
+	[FCFTR]		= 0x0468,
+	[CSMR]		= 0x04E4,
+
+	[ECMR]		= 0x0500,
+	[ECSR]		= 0x0510,
+	[ECSIPR]	= 0x0518,
+	[PIR]		= 0x0520,
+	[PSR]		= 0x0528,
+	[PIPR]		= 0x052c,
+	[RFLR]		= 0x0508,
+	[APR]		= 0x0554,
+	[MPR]		= 0x0558,
+	[PFTCR]		= 0x055c,
+	[PFRCR]		= 0x0560,
+	[TPAUSER]	= 0x0564,
+	[GECMR]		= 0x05b0,
+	[BCULR]		= 0x05b4,
+	[MAHR]		= 0x05c0,
+	[MALR]		= 0x05c8,
+	[TROCR]		= 0x0700,
+	[CDCR]		= 0x0708,
+	[LCCR]		= 0x0710,
+	[CEFCR]		= 0x0740,
+	[FRECR]		= 0x0748,
+	[TSFRCR]	= 0x0750,
+	[TLFRCR]	= 0x0758,
+	[RFCR]		= 0x0760,
+	[CERCR]		= 0x0768,
+	[CEECR]		= 0x0770,
+	[MAFCR]		= 0x0778,
+	[RMII_MII]	= 0x0790,
+
+	[ARSTR]		= 0x0000,
+	[TSU_CTRST]	= 0x0004,
+	[TSU_FWEN0]	= 0x0010,
+	[TSU_FWEN1]	= 0x0014,
+	[TSU_FCM]	= 0x0018,
+	[TSU_BSYSL0]	= 0x0020,
+	[TSU_BSYSL1]	= 0x0024,
+	[TSU_PRISL0]	= 0x0028,
+	[TSU_PRISL1]	= 0x002c,
+	[TSU_FWSL0]	= 0x0030,
+	[TSU_FWSL1]	= 0x0034,
+	[TSU_FWSLC]	= 0x0038,
+	[TSU_QTAGM0]	= 0x0040,
+	[TSU_QTAGM1]	= 0x0044,
+	[TSU_FWSR]	= 0x0050,
+	[TSU_FWINMK]	= 0x0054,
+	[TSU_ADQT0]	= 0x0048,
+	[TSU_ADQT1]	= 0x004c,
+	[TSU_VTAG0]	= 0x0058,
+	[TSU_VTAG1]	= 0x005c,
+	[TSU_ADSBSY]	= 0x0060,
+	[TSU_TEN]	= 0x0064,
+	[TSU_POST1]	= 0x0070,
+	[TSU_POST2]	= 0x0074,
+	[TSU_POST3]	= 0x0078,
+	[TSU_POST4]	= 0x007c,
+	[TSU_ADRH0]	= 0x0100,
+
+	[TXNLCR0]	= 0x0080,
+	[TXALCR0]	= 0x0084,
+	[RXNLCR0]	= 0x0088,
+	[RXALCR0]	= 0x008c,
+	[FWNLCR0]	= 0x0090,
+	[FWALCR0]	= 0x0094,
+	[TXNLCR1]	= 0x00a0,
+	[TXALCR1]	= 0x00a4,
+	[RXNLCR1]	= 0x00a8,
+	[RXALCR1]	= 0x00ac,
+	[FWNLCR1]	= 0x00b0,
+	[FWALCR1]	= 0x00b4,
+};
+
+static const u16 sh_eth_offset_fast_rcar[SH_ETH_MAX_REGISTER_OFFSET] = {
+	SH_ETH_OFFSET_DEFAULTS,
+
+	[ECMR]		= 0x0300,
+	[RFLR]		= 0x0308,
+	[ECSR]		= 0x0310,
+	[ECSIPR]	= 0x0318,
+	[PIR]		= 0x0320,
+	[PSR]		= 0x0328,
+	[RDMLR]		= 0x0340,
+	[IPGR]		= 0x0350,
+	[APR]		= 0x0354,
+	[MPR]		= 0x0358,
+	[RFCF]		= 0x0360,
+	[TPAUSER]	= 0x0364,
+	[TPAUSECR]	= 0x0368,
+	[MAHR]		= 0x03c0,
+	[MALR]		= 0x03c8,
+	[TROCR]		= 0x03d0,
+	[CDCR]		= 0x03d4,
+	[LCCR]		= 0x03d8,
+	[CNDCR]		= 0x03dc,
+	[CEFCR]		= 0x03e4,
+	[FRECR]		= 0x03e8,
+	[TSFRCR]	= 0x03ec,
+	[TLFRCR]	= 0x03f0,
+	[RFCR]		= 0x03f4,
+	[MAFCR]		= 0x03f8,
+
+	[EDMR]		= 0x0200,
+	[EDTRR]		= 0x0208,
+	[EDRRR]		= 0x0210,
+	[TDLAR]		= 0x0218,
+	[RDLAR]		= 0x0220,
+	[EESR]		= 0x0228,
+	[EESIPR]	= 0x0230,
+	[TRSCER]	= 0x0238,
+	[RMFCR]		= 0x0240,
+	[TFTR]		= 0x0248,
+	[FDR]		= 0x0250,
+	[RMCR]		= 0x0258,
+	[TFUCR]		= 0x0264,
+	[RFOCR]		= 0x0268,
+	[RMIIMODE]      = 0x026c,
+	[FCFTR]		= 0x0270,
+	[TRIMD]		= 0x027c,
+};
+
+static const u16 sh_eth_offset_fast_sh4[SH_ETH_MAX_REGISTER_OFFSET] = {
+	SH_ETH_OFFSET_DEFAULTS,
+
+	[ECMR]		= 0x0100,
+	[RFLR]		= 0x0108,
+	[ECSR]		= 0x0110,
+	[ECSIPR]	= 0x0118,
+	[PIR]		= 0x0120,
+	[PSR]		= 0x0128,
+	[RDMLR]		= 0x0140,
+	[IPGR]		= 0x0150,
+	[APR]		= 0x0154,
+	[MPR]		= 0x0158,
+	[TPAUSER]	= 0x0164,
+	[RFCF]		= 0x0160,
+	[TPAUSECR]	= 0x0168,
+	[BCFRR]		= 0x016c,
+	[MAHR]		= 0x01c0,
+	[MALR]		= 0x01c8,
+	[TROCR]		= 0x01d0,
+	[CDCR]		= 0x01d4,
+	[LCCR]		= 0x01d8,
+	[CNDCR]		= 0x01dc,
+	[CEFCR]		= 0x01e4,
+	[FRECR]		= 0x01e8,
+	[TSFRCR]	= 0x01ec,
+	[TLFRCR]	= 0x01f0,
+	[RFCR]		= 0x01f4,
+	[MAFCR]		= 0x01f8,
+	[RTRATE]	= 0x01fc,
+
+	[EDMR]		= 0x0000,
+	[EDTRR]		= 0x0008,
+	[EDRRR]		= 0x0010,
+	[TDLAR]		= 0x0018,
+	[RDLAR]		= 0x0020,
+	[EESR]		= 0x0028,
+	[EESIPR]	= 0x0030,
+	[TRSCER]	= 0x0038,
+	[RMFCR]		= 0x0040,
+	[TFTR]		= 0x0048,
+	[FDR]		= 0x0050,
+	[RMCR]		= 0x0058,
+	[TFUCR]		= 0x0064,
+	[RFOCR]		= 0x0068,
+	[FCFTR]		= 0x0070,
+	[RPADIR]	= 0x0078,
+	[TRIMD]		= 0x007c,
+	[RBWAR]		= 0x00c8,
+	[RDFAR]		= 0x00cc,
+	[TBRAR]		= 0x00d4,
+	[TDFAR]		= 0x00d8,
+};
+
+static const u16 sh_eth_offset_fast_sh3_sh2[SH_ETH_MAX_REGISTER_OFFSET] = {
+	SH_ETH_OFFSET_DEFAULTS,
+
+	[EDMR]		= 0x0000,
+	[EDTRR]		= 0x0004,
+	[EDRRR]		= 0x0008,
+	[TDLAR]		= 0x000c,
+	[RDLAR]		= 0x0010,
+	[EESR]		= 0x0014,
+	[EESIPR]	= 0x0018,
+	[TRSCER]	= 0x001c,
+	[RMFCR]		= 0x0020,
+	[TFTR]		= 0x0024,
+	[FDR]		= 0x0028,
+	[RMCR]		= 0x002c,
+	[EDOCR]		= 0x0030,
+	[FCFTR]		= 0x0034,
+	[RPADIR]	= 0x0038,
+	[TRIMD]		= 0x003c,
+	[RBWAR]		= 0x0040,
+	[RDFAR]		= 0x0044,
+	[TBRAR]		= 0x004c,
+	[TDFAR]		= 0x0050,
+
+	[ECMR]		= 0x0160,
+	[ECSR]		= 0x0164,
+	[ECSIPR]	= 0x0168,
+	[PIR]		= 0x016c,
+	[MAHR]		= 0x0170,
+	[MALR]		= 0x0174,
+	[RFLR]		= 0x0178,
+	[PSR]		= 0x017c,
+	[TROCR]		= 0x0180,
+	[CDCR]		= 0x0184,
+	[LCCR]		= 0x0188,
+	[CNDCR]		= 0x018c,
+	[CEFCR]		= 0x0194,
+	[FRECR]		= 0x0198,
+	[TSFRCR]	= 0x019c,
+	[TLFRCR]	= 0x01a0,
+	[RFCR]		= 0x01a4,
+	[MAFCR]		= 0x01a8,
+	[IPGR]		= 0x01b4,
+	[APR]		= 0x01b8,
+	[MPR]		= 0x01bc,
+	[TPAUSER]	= 0x01c4,
+	[BCFR]		= 0x01cc,
+
+	[ARSTR]		= 0x0000,
+	[TSU_CTRST]	= 0x0004,
+	[TSU_FWEN0]	= 0x0010,
+	[TSU_FWEN1]	= 0x0014,
+	[TSU_FCM]	= 0x0018,
+	[TSU_BSYSL0]	= 0x0020,
+	[TSU_BSYSL1]	= 0x0024,
+	[TSU_PRISL0]	= 0x0028,
+	[TSU_PRISL1]	= 0x002c,
+	[TSU_FWSL0]	= 0x0030,
+	[TSU_FWSL1]	= 0x0034,
+	[TSU_FWSLC]	= 0x0038,
+	[TSU_QTAGM0]	= 0x0040,
+	[TSU_QTAGM1]	= 0x0044,
+	[TSU_ADQT0]	= 0x0048,
+	[TSU_ADQT1]	= 0x004c,
+	[TSU_FWSR]	= 0x0050,
+	[TSU_FWINMK]	= 0x0054,
+	[TSU_ADSBSY]	= 0x0060,
+	[TSU_TEN]	= 0x0064,
+	[TSU_POST1]	= 0x0070,
+	[TSU_POST2]	= 0x0074,
+	[TSU_POST3]	= 0x0078,
+	[TSU_POST4]	= 0x007c,
+
+	[TXNLCR0]	= 0x0080,
+	[TXALCR0]	= 0x0084,
+	[RXNLCR0]	= 0x0088,
+	[RXALCR0]	= 0x008c,
+	[FWNLCR0]	= 0x0090,
+	[FWALCR0]	= 0x0094,
+	[TXNLCR1]	= 0x00a0,
+	[TXALCR1]	= 0x00a4,
+	[RXNLCR1]	= 0x00a8,
+	[RXALCR1]	= 0x00ac,
+	[FWNLCR1]	= 0x00b0,
+	[FWALCR1]	= 0x00b4,
+
+	[TSU_ADRH0]	= 0x0100,
+};
+__diag_pop();
+
+static void sh_eth_rcv_snd_disable(struct net_device *ndev);
+static struct net_device_stats *sh_eth_get_stats(struct net_device *ndev);
+
+static void sh_eth_write(struct net_device *ndev, u32 data, int enum_index)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	u16 offset = mdp->reg_offset[enum_index];
+
+	if (WARN_ON(offset == SH_ETH_OFFSET_INVALID))
+		return;
+
+	iowrite32(data, mdp->addr + offset);
+}
+
+static u32 sh_eth_read(struct net_device *ndev, int enum_index)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	u16 offset = mdp->reg_offset[enum_index];
+
+	if (WARN_ON(offset == SH_ETH_OFFSET_INVALID))
+		return ~0U;
+
+	return ioread32(mdp->addr + offset);
+}
+
+static void sh_eth_modify(struct net_device *ndev, int enum_index, u32 clear,
+			  u32 set)
+{
+	sh_eth_write(ndev, (sh_eth_read(ndev, enum_index) & ~clear) | set,
+		     enum_index);
+}
+
+static u16 sh_eth_tsu_get_offset(struct sh_eth_private *mdp, int enum_index)
+{
+	return mdp->reg_offset[enum_index];
+}
+
+static void sh_eth_tsu_write(struct sh_eth_private *mdp, u32 data,
+			     int enum_index)
+{
+	u16 offset = sh_eth_tsu_get_offset(mdp, enum_index);
+
+	if (WARN_ON(offset == SH_ETH_OFFSET_INVALID))
+		return;
+
+	iowrite32(data, mdp->tsu_addr + offset);
+}
+
+static u32 sh_eth_tsu_read(struct sh_eth_private *mdp, int enum_index)
+{
+	u16 offset = sh_eth_tsu_get_offset(mdp, enum_index);
+
+	if (WARN_ON(offset == SH_ETH_OFFSET_INVALID))
+		return ~0U;
+
+	return ioread32(mdp->tsu_addr + offset);
+}
+
+static void sh_eth_soft_swap(char *src, int len)
+{
+#ifdef __LITTLE_ENDIAN
+	u32 *p = (u32 *)src;
+	u32 *maxp = p + DIV_ROUND_UP(len, sizeof(u32));
+
+	for (; p < maxp; p++)
+		*p = swab32(*p);
+#endif
+}
+
+static void sh_eth_select_mii(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	u32 value;
+
+	switch (mdp->phy_interface) {
+	case PHY_INTERFACE_MODE_RGMII ... PHY_INTERFACE_MODE_RGMII_TXID:
+		value = 0x3;
+		break;
+	case PHY_INTERFACE_MODE_GMII:
+		value = 0x2;
+		break;
+	case PHY_INTERFACE_MODE_MII:
+		value = 0x1;
+		break;
+	case PHY_INTERFACE_MODE_RMII:
+		value = 0x0;
+		break;
+	default:
+		netdev_warn(ndev,
+			    "PHY interface mode was not setup. Set to MII.\n");
+		value = 0x1;
+		break;
+	}
+
+	sh_eth_write(ndev, value, RMII_MII);
+}
+
+static void sh_eth_set_duplex(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	sh_eth_modify(ndev, ECMR, ECMR_DM, mdp->duplex ? ECMR_DM : 0);
+}
+
+static void sh_eth_chip_reset(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	/* reset device */
+	sh_eth_tsu_write(mdp, ARSTR_ARST, ARSTR);
+	mdelay(1);
+}
+
+static int sh_eth_soft_reset(struct net_device *ndev)
+{
+	sh_eth_modify(ndev, EDMR, EDMR_SRST_ETHER, EDMR_SRST_ETHER);
+	mdelay(3);
+	sh_eth_modify(ndev, EDMR, EDMR_SRST_ETHER, 0);
+
+	return 0;
+}
+
+static int sh_eth_check_soft_reset(struct net_device *ndev)
+{
+	int cnt;
+
+	for (cnt = 100; cnt > 0; cnt--) {
+		if (!(sh_eth_read(ndev, EDMR) & EDMR_SRST_GETHER))
+			return 0;
+		mdelay(1);
+	}
+
+	netdev_err(ndev, "Device reset failed\n");
+	return -ETIMEDOUT;
+}
+
+static int sh_eth_soft_reset_gether(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int ret;
+
+	sh_eth_write(ndev, EDSR_ENALL, EDSR);
+	sh_eth_modify(ndev, EDMR, EDMR_SRST_GETHER, EDMR_SRST_GETHER);
+
+	ret = sh_eth_check_soft_reset(ndev);
+	if (ret)
+		return ret;
+
+	/* Table Init */
+	sh_eth_write(ndev, 0, TDLAR);
+	sh_eth_write(ndev, 0, TDFAR);
+	sh_eth_write(ndev, 0, TDFXR);
+	sh_eth_write(ndev, 0, TDFFR);
+	sh_eth_write(ndev, 0, RDLAR);
+	sh_eth_write(ndev, 0, RDFAR);
+	sh_eth_write(ndev, 0, RDFXR);
+	sh_eth_write(ndev, 0, RDFFR);
+
+	/* Reset HW CRC register */
+	if (mdp->cd->csmr)
+		sh_eth_write(ndev, 0, CSMR);
+
+	/* Select MII mode */
+	if (mdp->cd->select_mii)
+		sh_eth_select_mii(ndev);
+
+	return ret;
+}
+
+static void sh_eth_set_rate_gether(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	if (WARN_ON(!mdp->cd->gecmr))
+		return;
+
+	switch (mdp->speed) {
+	case 10: /* 10BASE */
+		sh_eth_write(ndev, GECMR_10, GECMR);
+		break;
+	case 100:/* 100BASE */
+		sh_eth_write(ndev, GECMR_100, GECMR);
+		break;
+	case 1000: /* 1000BASE */
+		sh_eth_write(ndev, GECMR_1000, GECMR);
+		break;
+	}
+}
+
+#ifdef CONFIG_OF
+/* R7S72100 */
+static struct sh_eth_cpu_data r7s72100_data = {
+	.soft_reset	= sh_eth_soft_reset_gether,
+
+	.chip_reset	= sh_eth_chip_reset,
+	.set_duplex	= sh_eth_set_duplex,
+
+	.register_type	= SH_ETH_REG_GIGABIT,
+
+	.edtrr_trns	= EDTRR_TRNS_GETHER,
+	.ecsr_value	= ECSR_ICD,
+	.ecsipr_value	= ECSIPR_ICDIP,
+	.eesipr_value	= EESIPR_TWB1IP | EESIPR_TWBIP | EESIPR_TC1IP |
+			  EESIPR_TABTIP | EESIPR_RABTIP | EESIPR_RFCOFIP |
+			  EESIPR_ECIIP |
+			  EESIPR_FTCIP | EESIPR_TDEIP | EESIPR_TFUFIP |
+			  EESIPR_FRIP | EESIPR_RDEIP | EESIPR_RFOFIP |
+			  EESIPR_RMAFIP | EESIPR_RRFIP |
+			  EESIPR_RTLFIP | EESIPR_RTSFIP |
+			  EESIPR_PREIP | EESIPR_CERFIP,
+
+	.tx_check	= EESR_TC1 | EESR_FTC,
+	.eesr_err_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT |
+			  EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE |
+			  EESR_TDE,
+	.fdr_value	= 0x0000070f,
+
+	.trscer_err_mask = TRSCER_RMAFCE | TRSCER_RRFCE,
+
+	.no_psr		= 1,
+	.apr		= 1,
+	.mpr		= 1,
+	.tpauser	= 1,
+	.hw_swap	= 1,
+	.rpadir		= 1,
+	.no_trimd	= 1,
+	.no_ade		= 1,
+	.xdfar_rw	= 1,
+	.csmr		= 1,
+	.rx_csum	= 1,
+	.tsu		= 1,
+	.no_tx_cntrs	= 1,
+};
+
+static void sh_eth_chip_reset_r8a7740(struct net_device *ndev)
+{
+	sh_eth_chip_reset(ndev);
+
+	sh_eth_select_mii(ndev);
+}
+
+/* R8A7740 */
+static struct sh_eth_cpu_data r8a7740_data = {
+	.soft_reset	= sh_eth_soft_reset_gether,
+
+	.chip_reset	= sh_eth_chip_reset_r8a7740,
+	.set_duplex	= sh_eth_set_duplex,
+	.set_rate	= sh_eth_set_rate_gether,
+
+	.register_type	= SH_ETH_REG_GIGABIT,
+
+	.edtrr_trns	= EDTRR_TRNS_GETHER,
+	.ecsr_value	= ECSR_ICD | ECSR_MPD,
+	.ecsipr_value	= ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP,
+	.eesipr_value	= EESIPR_RFCOFIP | EESIPR_ECIIP |
+			  EESIPR_FTCIP | EESIPR_TDEIP | EESIPR_TFUFIP |
+			  EESIPR_FRIP | EESIPR_RDEIP | EESIPR_RFOFIP |
+			  0x0000f000 | EESIPR_CNDIP | EESIPR_DLCIP |
+			  EESIPR_CDIP | EESIPR_TROIP | EESIPR_RMAFIP |
+			  EESIPR_CEEFIP | EESIPR_CELFIP |
+			  EESIPR_RRFIP | EESIPR_RTLFIP | EESIPR_RTSFIP |
+			  EESIPR_PREIP | EESIPR_CERFIP,
+
+	.tx_check	= EESR_TC1 | EESR_FTC,
+	.eesr_err_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT |
+			  EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE |
+			  EESR_TDE,
+	.fdr_value	= 0x0000070f,
+
+	.apr		= 1,
+	.mpr		= 1,
+	.tpauser	= 1,
+	.gecmr		= 1,
+	.bculr		= 1,
+	.hw_swap	= 1,
+	.rpadir		= 1,
+	.no_trimd	= 1,
+	.no_ade		= 1,
+	.xdfar_rw	= 1,
+	.csmr		= 1,
+	.rx_csum	= 1,
+	.tsu		= 1,
+	.select_mii	= 1,
+	.magic		= 1,
+	.cexcr		= 1,
+};
+
+/* There is CPU dependent code */
+static void sh_eth_set_rate_rcar(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	switch (mdp->speed) {
+	case 10: /* 10BASE */
+		sh_eth_modify(ndev, ECMR, ECMR_ELB, 0);
+		break;
+	case 100:/* 100BASE */
+		sh_eth_modify(ndev, ECMR, ECMR_ELB, ECMR_ELB);
+		break;
+	}
+}
+
+/* R-Car Gen1 */
+static struct sh_eth_cpu_data rcar_gen1_data = {
+	.soft_reset	= sh_eth_soft_reset,
+
+	.set_duplex	= sh_eth_set_duplex,
+	.set_rate	= sh_eth_set_rate_rcar,
+
+	.register_type	= SH_ETH_REG_FAST_RCAR,
+
+	.edtrr_trns	= EDTRR_TRNS_ETHER,
+	.ecsr_value	= ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD,
+	.ecsipr_value	= ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP,
+	.eesipr_value	= EESIPR_RFCOFIP | EESIPR_ADEIP | EESIPR_ECIIP |
+			  EESIPR_FTCIP | EESIPR_TDEIP | EESIPR_TFUFIP |
+			  EESIPR_FRIP | EESIPR_RDEIP | EESIPR_RFOFIP |
+			  EESIPR_RMAFIP | EESIPR_RRFIP |
+			  EESIPR_RTLFIP | EESIPR_RTSFIP |
+			  EESIPR_PREIP | EESIPR_CERFIP,
+
+	.tx_check	= EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_TRO,
+	.eesr_err_check	= EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE |
+			  EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE,
+	.fdr_value	= 0x00000f0f,
+
+	.apr		= 1,
+	.mpr		= 1,
+	.tpauser	= 1,
+	.hw_swap	= 1,
+	.no_xdfar	= 1,
+};
+
+/* R-Car Gen2 and RZ/G1 */
+static struct sh_eth_cpu_data rcar_gen2_data = {
+	.soft_reset	= sh_eth_soft_reset,
+
+	.set_duplex	= sh_eth_set_duplex,
+	.set_rate	= sh_eth_set_rate_rcar,
+
+	.register_type	= SH_ETH_REG_FAST_RCAR,
+
+	.edtrr_trns	= EDTRR_TRNS_ETHER,
+	.ecsr_value	= ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD | ECSR_MPD,
+	.ecsipr_value	= ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP |
+			  ECSIPR_MPDIP,
+	.eesipr_value	= EESIPR_RFCOFIP | EESIPR_ADEIP | EESIPR_ECIIP |
+			  EESIPR_FTCIP | EESIPR_TDEIP | EESIPR_TFUFIP |
+			  EESIPR_FRIP | EESIPR_RDEIP | EESIPR_RFOFIP |
+			  EESIPR_RMAFIP | EESIPR_RRFIP |
+			  EESIPR_RTLFIP | EESIPR_RTSFIP |
+			  EESIPR_PREIP | EESIPR_CERFIP,
+
+	.tx_check	= EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_TRO,
+	.eesr_err_check	= EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE |
+			  EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE,
+	.fdr_value	= 0x00000f0f,
+
+	.trscer_err_mask = TRSCER_RMAFCE,
+
+	.apr		= 1,
+	.mpr		= 1,
+	.tpauser	= 1,
+	.hw_swap	= 1,
+	.no_xdfar	= 1,
+	.rmiimode	= 1,
+	.magic		= 1,
+};
+
+/* R8A77980 */
+static struct sh_eth_cpu_data r8a77980_data = {
+	.soft_reset	= sh_eth_soft_reset_gether,
+
+	.set_duplex	= sh_eth_set_duplex,
+	.set_rate	= sh_eth_set_rate_gether,
+
+	.register_type  = SH_ETH_REG_GIGABIT,
+
+	.edtrr_trns	= EDTRR_TRNS_GETHER,
+	.ecsr_value	= ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD | ECSR_MPD,
+	.ecsipr_value	= ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP |
+			  ECSIPR_MPDIP,
+	.eesipr_value	= EESIPR_RFCOFIP | EESIPR_ECIIP |
+			  EESIPR_FTCIP | EESIPR_TDEIP | EESIPR_TFUFIP |
+			  EESIPR_FRIP | EESIPR_RDEIP | EESIPR_RFOFIP |
+			  EESIPR_RMAFIP | EESIPR_RRFIP |
+			  EESIPR_RTLFIP | EESIPR_RTSFIP |
+			  EESIPR_PREIP | EESIPR_CERFIP,
+
+	.tx_check       = EESR_FTC | EESR_CD | EESR_TRO,
+	.eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT |
+			  EESR_RFE | EESR_RDE | EESR_RFRMER |
+			  EESR_TFE | EESR_TDE | EESR_ECI,
+	.fdr_value	= 0x0000070f,
+
+	.apr		= 1,
+	.mpr		= 1,
+	.tpauser	= 1,
+	.gecmr		= 1,
+	.bculr		= 1,
+	.hw_swap	= 1,
+	.nbst		= 1,
+	.rpadir		= 1,
+	.no_trimd	= 1,
+	.no_ade		= 1,
+	.xdfar_rw	= 1,
+	.csmr		= 1,
+	.rx_csum	= 1,
+	.select_mii	= 1,
+	.magic		= 1,
+	.cexcr		= 1,
+};
+
+/* R7S9210 */
+static struct sh_eth_cpu_data r7s9210_data = {
+	.soft_reset	= sh_eth_soft_reset,
+
+	.set_duplex	= sh_eth_set_duplex,
+	.set_rate	= sh_eth_set_rate_rcar,
+
+	.register_type	= SH_ETH_REG_FAST_SH4,
+
+	.edtrr_trns	= EDTRR_TRNS_ETHER,
+	.ecsr_value	= ECSR_ICD,
+	.ecsipr_value	= ECSIPR_ICDIP,
+	.eesipr_value	= EESIPR_TWBIP | EESIPR_TABTIP | EESIPR_RABTIP |
+			  EESIPR_RFCOFIP | EESIPR_ECIIP | EESIPR_FTCIP |
+			  EESIPR_TDEIP | EESIPR_TFUFIP | EESIPR_FRIP |
+			  EESIPR_RDEIP | EESIPR_RFOFIP | EESIPR_CNDIP |
+			  EESIPR_DLCIP | EESIPR_CDIP | EESIPR_TROIP |
+			  EESIPR_RMAFIP | EESIPR_RRFIP | EESIPR_RTLFIP |
+			  EESIPR_RTSFIP | EESIPR_PREIP | EESIPR_CERFIP,
+
+	.tx_check	= EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_TRO,
+	.eesr_err_check	= EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE |
+			  EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE,
+
+	.fdr_value	= 0x0000070f,
+
+	.trscer_err_mask = TRSCER_RMAFCE | TRSCER_RRFCE,
+
+	.apr		= 1,
+	.mpr		= 1,
+	.tpauser	= 1,
+	.hw_swap	= 1,
+	.rpadir		= 1,
+	.no_ade		= 1,
+	.xdfar_rw	= 1,
+};
+#endif /* CONFIG_OF */
+
+static void sh_eth_set_rate_sh7724(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	switch (mdp->speed) {
+	case 10: /* 10BASE */
+		sh_eth_modify(ndev, ECMR, ECMR_RTM, 0);
+		break;
+	case 100:/* 100BASE */
+		sh_eth_modify(ndev, ECMR, ECMR_RTM, ECMR_RTM);
+		break;
+	}
+}
+
+/* SH7724 */
+static struct sh_eth_cpu_data sh7724_data = {
+	.soft_reset	= sh_eth_soft_reset,
+
+	.set_duplex	= sh_eth_set_duplex,
+	.set_rate	= sh_eth_set_rate_sh7724,
+
+	.register_type	= SH_ETH_REG_FAST_SH4,
+
+	.edtrr_trns	= EDTRR_TRNS_ETHER,
+	.ecsr_value	= ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD,
+	.ecsipr_value	= ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP,
+	.eesipr_value	= EESIPR_RFCOFIP | EESIPR_ADEIP | EESIPR_ECIIP |
+			  EESIPR_FTCIP | EESIPR_TDEIP | EESIPR_TFUFIP |
+			  EESIPR_FRIP | EESIPR_RDEIP | EESIPR_RFOFIP |
+			  EESIPR_RMAFIP | EESIPR_RRFIP |
+			  EESIPR_RTLFIP | EESIPR_RTSFIP |
+			  EESIPR_PREIP | EESIPR_CERFIP,
+
+	.tx_check	= EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_TRO,
+	.eesr_err_check	= EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE |
+			  EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE,
+
+	.apr		= 1,
+	.mpr		= 1,
+	.tpauser	= 1,
+	.hw_swap	= 1,
+	.rpadir		= 1,
+};
+
+static void sh_eth_set_rate_sh7757(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	switch (mdp->speed) {
+	case 10: /* 10BASE */
+		sh_eth_write(ndev, 0, RTRATE);
+		break;
+	case 100:/* 100BASE */
+		sh_eth_write(ndev, 1, RTRATE);
+		break;
+	}
+}
+
+/* SH7757 */
+static struct sh_eth_cpu_data sh7757_data = {
+	.soft_reset	= sh_eth_soft_reset,
+
+	.set_duplex	= sh_eth_set_duplex,
+	.set_rate	= sh_eth_set_rate_sh7757,
+
+	.register_type	= SH_ETH_REG_FAST_SH4,
+
+	.edtrr_trns	= EDTRR_TRNS_ETHER,
+	.eesipr_value	= EESIPR_RFCOFIP | EESIPR_ECIIP |
+			  EESIPR_FTCIP | EESIPR_TDEIP | EESIPR_TFUFIP |
+			  EESIPR_FRIP | EESIPR_RDEIP | EESIPR_RFOFIP |
+			  0x0000f000 | EESIPR_CNDIP | EESIPR_DLCIP |
+			  EESIPR_CDIP | EESIPR_TROIP | EESIPR_RMAFIP |
+			  EESIPR_CEEFIP | EESIPR_CELFIP |
+			  EESIPR_RRFIP | EESIPR_RTLFIP | EESIPR_RTSFIP |
+			  EESIPR_PREIP | EESIPR_CERFIP,
+
+	.tx_check	= EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_TRO,
+	.eesr_err_check	= EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE |
+			  EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE,
+
+	.irq_flags	= IRQF_SHARED,
+	.apr		= 1,
+	.mpr		= 1,
+	.tpauser	= 1,
+	.hw_swap	= 1,
+	.no_ade		= 1,
+	.rpadir		= 1,
+	.rtrate		= 1,
+	.dual_port	= 1,
+};
+
+#define SH_GIGA_ETH_BASE	0xfee00000UL
+#define GIGA_MALR(port)		(SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c8)
+#define GIGA_MAHR(port)		(SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c0)
+static void sh_eth_chip_reset_giga(struct net_device *ndev)
+{
+	u32 mahr[2], malr[2];
+	int i;
+
+	/* save MAHR and MALR */
+	for (i = 0; i < 2; i++) {
+		malr[i] = ioread32((void *)GIGA_MALR(i));
+		mahr[i] = ioread32((void *)GIGA_MAHR(i));
+	}
+
+	sh_eth_chip_reset(ndev);
+
+	/* restore MAHR and MALR */
+	for (i = 0; i < 2; i++) {
+		iowrite32(malr[i], (void *)GIGA_MALR(i));
+		iowrite32(mahr[i], (void *)GIGA_MAHR(i));
+	}
+}
+
+static void sh_eth_set_rate_giga(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	if (WARN_ON(!mdp->cd->gecmr))
+		return;
+
+	switch (mdp->speed) {
+	case 10: /* 10BASE */
+		sh_eth_write(ndev, 0x00000000, GECMR);
+		break;
+	case 100:/* 100BASE */
+		sh_eth_write(ndev, 0x00000010, GECMR);
+		break;
+	case 1000: /* 1000BASE */
+		sh_eth_write(ndev, 0x00000020, GECMR);
+		break;
+	}
+}
+
+/* SH7757(GETHERC) */
+static struct sh_eth_cpu_data sh7757_data_giga = {
+	.soft_reset	= sh_eth_soft_reset_gether,
+
+	.chip_reset	= sh_eth_chip_reset_giga,
+	.set_duplex	= sh_eth_set_duplex,
+	.set_rate	= sh_eth_set_rate_giga,
+
+	.register_type	= SH_ETH_REG_GIGABIT,
+
+	.edtrr_trns	= EDTRR_TRNS_GETHER,
+	.ecsr_value	= ECSR_ICD | ECSR_MPD,
+	.ecsipr_value	= ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP,
+	.eesipr_value	= EESIPR_RFCOFIP | EESIPR_ECIIP |
+			  EESIPR_FTCIP | EESIPR_TDEIP | EESIPR_TFUFIP |
+			  EESIPR_FRIP | EESIPR_RDEIP | EESIPR_RFOFIP |
+			  0x0000f000 | EESIPR_CNDIP | EESIPR_DLCIP |
+			  EESIPR_CDIP | EESIPR_TROIP | EESIPR_RMAFIP |
+			  EESIPR_CEEFIP | EESIPR_CELFIP |
+			  EESIPR_RRFIP | EESIPR_RTLFIP | EESIPR_RTSFIP |
+			  EESIPR_PREIP | EESIPR_CERFIP,
+
+	.tx_check	= EESR_TC1 | EESR_FTC,
+	.eesr_err_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT |
+			  EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE |
+			  EESR_TDE,
+	.fdr_value	= 0x0000072f,
+
+	.irq_flags	= IRQF_SHARED,
+	.apr		= 1,
+	.mpr		= 1,
+	.tpauser	= 1,
+	.gecmr		= 1,
+	.bculr		= 1,
+	.hw_swap	= 1,
+	.rpadir		= 1,
+	.no_trimd	= 1,
+	.no_ade		= 1,
+	.xdfar_rw	= 1,
+	.tsu		= 1,
+	.cexcr		= 1,
+	.dual_port	= 1,
+};
+
+/* SH7734 */
+static struct sh_eth_cpu_data sh7734_data = {
+	.soft_reset	= sh_eth_soft_reset_gether,
+
+	.chip_reset	= sh_eth_chip_reset,
+	.set_duplex	= sh_eth_set_duplex,
+	.set_rate	= sh_eth_set_rate_gether,
+
+	.register_type	= SH_ETH_REG_GIGABIT,
+
+	.edtrr_trns	= EDTRR_TRNS_GETHER,
+	.ecsr_value	= ECSR_ICD | ECSR_MPD,
+	.ecsipr_value	= ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP,
+	.eesipr_value	= EESIPR_RFCOFIP | EESIPR_ECIIP |
+			  EESIPR_FTCIP | EESIPR_TDEIP | EESIPR_TFUFIP |
+			  EESIPR_FRIP | EESIPR_RDEIP | EESIPR_RFOFIP |
+			  EESIPR_DLCIP | EESIPR_CDIP | EESIPR_TROIP |
+			  EESIPR_RMAFIP | EESIPR_CEEFIP | EESIPR_CELFIP |
+			  EESIPR_RRFIP | EESIPR_RTLFIP | EESIPR_RTSFIP |
+			  EESIPR_PREIP | EESIPR_CERFIP,
+
+	.tx_check	= EESR_TC1 | EESR_FTC,
+	.eesr_err_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT |
+			  EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE |
+			  EESR_TDE,
+
+	.apr		= 1,
+	.mpr		= 1,
+	.tpauser	= 1,
+	.gecmr		= 1,
+	.bculr		= 1,
+	.hw_swap	= 1,
+	.no_trimd	= 1,
+	.no_ade		= 1,
+	.xdfar_rw	= 1,
+	.tsu		= 1,
+	.csmr		= 1,
+	.rx_csum	= 1,
+	.select_mii	= 1,
+	.magic		= 1,
+	.cexcr		= 1,
+};
+
+/* SH7763 */
+static struct sh_eth_cpu_data sh7763_data = {
+	.soft_reset	= sh_eth_soft_reset_gether,
+
+	.chip_reset	= sh_eth_chip_reset,
+	.set_duplex	= sh_eth_set_duplex,
+	.set_rate	= sh_eth_set_rate_gether,
+
+	.register_type	= SH_ETH_REG_GIGABIT,
+
+	.edtrr_trns	= EDTRR_TRNS_GETHER,
+	.ecsr_value	= ECSR_ICD | ECSR_MPD,
+	.ecsipr_value	= ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP,
+	.eesipr_value	= EESIPR_RFCOFIP | EESIPR_ECIIP |
+			  EESIPR_FTCIP | EESIPR_TDEIP | EESIPR_TFUFIP |
+			  EESIPR_FRIP | EESIPR_RDEIP | EESIPR_RFOFIP |
+			  EESIPR_DLCIP | EESIPR_CDIP | EESIPR_TROIP |
+			  EESIPR_RMAFIP | EESIPR_CEEFIP | EESIPR_CELFIP |
+			  EESIPR_RRFIP | EESIPR_RTLFIP | EESIPR_RTSFIP |
+			  EESIPR_PREIP | EESIPR_CERFIP,
+
+	.tx_check	= EESR_TC1 | EESR_FTC,
+	.eesr_err_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT |
+			  EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE,
+
+	.apr		= 1,
+	.mpr		= 1,
+	.tpauser	= 1,
+	.gecmr		= 1,
+	.bculr		= 1,
+	.hw_swap	= 1,
+	.no_trimd	= 1,
+	.no_ade		= 1,
+	.xdfar_rw	= 1,
+	.tsu		= 1,
+	.irq_flags	= IRQF_SHARED,
+	.magic		= 1,
+	.cexcr		= 1,
+	.rx_csum	= 1,
+	.dual_port	= 1,
+};
+
+static struct sh_eth_cpu_data sh7619_data = {
+	.soft_reset	= sh_eth_soft_reset,
+
+	.register_type	= SH_ETH_REG_FAST_SH3_SH2,
+
+	.edtrr_trns	= EDTRR_TRNS_ETHER,
+	.eesipr_value	= EESIPR_RFCOFIP | EESIPR_ECIIP |
+			  EESIPR_FTCIP | EESIPR_TDEIP | EESIPR_TFUFIP |
+			  EESIPR_FRIP | EESIPR_RDEIP | EESIPR_RFOFIP |
+			  0x0000f000 | EESIPR_CNDIP | EESIPR_DLCIP |
+			  EESIPR_CDIP | EESIPR_TROIP | EESIPR_RMAFIP |
+			  EESIPR_CEEFIP | EESIPR_CELFIP |
+			  EESIPR_RRFIP | EESIPR_RTLFIP | EESIPR_RTSFIP |
+			  EESIPR_PREIP | EESIPR_CERFIP,
+
+	.apr		= 1,
+	.mpr		= 1,
+	.tpauser	= 1,
+	.hw_swap	= 1,
+};
+
+static struct sh_eth_cpu_data sh771x_data = {
+	.soft_reset	= sh_eth_soft_reset,
+
+	.register_type	= SH_ETH_REG_FAST_SH3_SH2,
+
+	.edtrr_trns	= EDTRR_TRNS_ETHER,
+	.eesipr_value	= EESIPR_RFCOFIP | EESIPR_ECIIP |
+			  EESIPR_FTCIP | EESIPR_TDEIP | EESIPR_TFUFIP |
+			  EESIPR_FRIP | EESIPR_RDEIP | EESIPR_RFOFIP |
+			  0x0000f000 | EESIPR_CNDIP | EESIPR_DLCIP |
+			  EESIPR_CDIP | EESIPR_TROIP | EESIPR_RMAFIP |
+			  EESIPR_CEEFIP | EESIPR_CELFIP |
+			  EESIPR_RRFIP | EESIPR_RTLFIP | EESIPR_RTSFIP |
+			  EESIPR_PREIP | EESIPR_CERFIP,
+
+	.trscer_err_mask = TRSCER_RMAFCE,
+
+	.tsu		= 1,
+	.dual_port	= 1,
+};
+
+static void sh_eth_set_default_cpu_data(struct sh_eth_cpu_data *cd)
+{
+	if (!cd->ecsr_value)
+		cd->ecsr_value = DEFAULT_ECSR_INIT;
+
+	if (!cd->ecsipr_value)
+		cd->ecsipr_value = DEFAULT_ECSIPR_INIT;
+
+	if (!cd->fcftr_value)
+		cd->fcftr_value = DEFAULT_FIFO_F_D_RFF |
+				  DEFAULT_FIFO_F_D_RFD;
+
+	if (!cd->fdr_value)
+		cd->fdr_value = DEFAULT_FDR_INIT;
+
+	if (!cd->tx_check)
+		cd->tx_check = DEFAULT_TX_CHECK;
+
+	if (!cd->eesr_err_check)
+		cd->eesr_err_check = DEFAULT_EESR_ERR_CHECK;
+
+	if (!cd->trscer_err_mask)
+		cd->trscer_err_mask = DEFAULT_TRSCER_ERR_MASK;
+}
+
+static void sh_eth_set_receive_align(struct sk_buff *skb)
+{
+	uintptr_t reserve = (uintptr_t)skb->data & (SH_ETH_RX_ALIGN - 1);
+
+	if (reserve)
+		skb_reserve(skb, SH_ETH_RX_ALIGN - reserve);
+}
+
+/* Program the hardware MAC address from dev->dev_addr. */
+static void update_mac_address(struct net_device *ndev)
+{
+	sh_eth_write(ndev,
+		     (ndev->dev_addr[0] << 24) | (ndev->dev_addr[1] << 16) |
+		     (ndev->dev_addr[2] << 8) | (ndev->dev_addr[3]), MAHR);
+	sh_eth_write(ndev,
+		     (ndev->dev_addr[4] << 8) | (ndev->dev_addr[5]), MALR);
+}
+
+/* Get MAC address from SuperH MAC address register
+ *
+ * SuperH's Ethernet device doesn't have 'ROM' to MAC address.
+ * This driver get MAC address that use by bootloader(U-boot or sh-ipl+g).
+ * When you want use this device, you must set MAC address in bootloader.
+ *
+ */
+static void read_mac_address(struct net_device *ndev, unsigned char *mac)
+{
+	if (mac[0] || mac[1] || mac[2] || mac[3] || mac[4] || mac[5]) {
+		eth_hw_addr_set(ndev, mac);
+	} else {
+		u32 mahr = sh_eth_read(ndev, MAHR);
+		u32 malr = sh_eth_read(ndev, MALR);
+		u8 addr[ETH_ALEN];
+
+		addr[0] = (mahr >> 24) & 0xFF;
+		addr[1] = (mahr >> 16) & 0xFF;
+		addr[2] = (mahr >>  8) & 0xFF;
+		addr[3] = (mahr >>  0) & 0xFF;
+		addr[4] = (malr >>  8) & 0xFF;
+		addr[5] = (malr >>  0) & 0xFF;
+		eth_hw_addr_set(ndev, addr);
+	}
+}
+
+struct bb_info {
+	void (*set_gate)(void *addr);
+	struct mdiobb_ctrl ctrl;
+	void *addr;
+};
+
+static void sh_mdio_ctrl(struct mdiobb_ctrl *ctrl, u32 mask, int set)
+{
+	struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl);
+	u32 pir;
+
+	if (bitbang->set_gate)
+		bitbang->set_gate(bitbang->addr);
+
+	pir = ioread32(bitbang->addr);
+	if (set)
+		pir |=  mask;
+	else
+		pir &= ~mask;
+	iowrite32(pir, bitbang->addr);
+}
+
+/* Data I/O pin control */
+static void sh_mmd_ctrl(struct mdiobb_ctrl *ctrl, int bit)
+{
+	sh_mdio_ctrl(ctrl, PIR_MMD, bit);
+}
+
+/* Set bit data*/
+static void sh_set_mdio(struct mdiobb_ctrl *ctrl, int bit)
+{
+	sh_mdio_ctrl(ctrl, PIR_MDO, bit);
+}
+
+/* Get bit data*/
+static int sh_get_mdio(struct mdiobb_ctrl *ctrl)
+{
+	struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl);
+
+	if (bitbang->set_gate)
+		bitbang->set_gate(bitbang->addr);
+
+	return (ioread32(bitbang->addr) & PIR_MDI) != 0;
+}
+
+/* MDC pin control */
+static void sh_mdc_ctrl(struct mdiobb_ctrl *ctrl, int bit)
+{
+	sh_mdio_ctrl(ctrl, PIR_MDC, bit);
+}
+
+/* mdio bus control struct */
+static const struct mdiobb_ops bb_ops = {
+	.owner = THIS_MODULE,
+	.set_mdc = sh_mdc_ctrl,
+	.set_mdio_dir = sh_mmd_ctrl,
+	.set_mdio_data = sh_set_mdio,
+	.get_mdio_data = sh_get_mdio,
+};
+
+/* free Tx skb function */
+static int sh_eth_tx_free(struct net_device *ndev, bool sent_only)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	struct sh_eth_txdesc *txdesc;
+	int free_num = 0;
+	int entry;
+	bool sent;
+
+	for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) {
+		entry = mdp->dirty_tx % mdp->num_tx_ring;
+		txdesc = &mdp->tx_ring[entry];
+		sent = !(txdesc->status & cpu_to_le32(TD_TACT));
+		if (sent_only && !sent)
+			break;
+		/* TACT bit must be checked before all the following reads */
+		dma_rmb();
+		netif_info(mdp, tx_done, ndev,
+			   "tx entry %d status 0x%08x\n",
+			   entry, le32_to_cpu(txdesc->status));
+		/* Free the original skb. */
+		if (mdp->tx_skbuff[entry]) {
+			dma_unmap_single(&mdp->pdev->dev,
+					 le32_to_cpu(txdesc->addr),
+					 le32_to_cpu(txdesc->len) >> 16,
+					 DMA_TO_DEVICE);
+			dev_kfree_skb_irq(mdp->tx_skbuff[entry]);
+			mdp->tx_skbuff[entry] = NULL;
+			free_num++;
+		}
+		txdesc->status = cpu_to_le32(TD_TFP);
+		if (entry >= mdp->num_tx_ring - 1)
+			txdesc->status |= cpu_to_le32(TD_TDLE);
+
+		if (sent) {
+			ndev->stats.tx_packets++;
+			ndev->stats.tx_bytes += le32_to_cpu(txdesc->len) >> 16;
+		}
+	}
+	return free_num;
+}
+
+/* free skb and descriptor buffer */
+static void sh_eth_ring_free(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int ringsize, i;
+
+	if (mdp->rx_ring) {
+		for (i = 0; i < mdp->num_rx_ring; i++) {
+			if (mdp->rx_skbuff[i]) {
+				struct sh_eth_rxdesc *rxdesc = &mdp->rx_ring[i];
+
+				dma_unmap_single(&mdp->pdev->dev,
+						 le32_to_cpu(rxdesc->addr),
+						 ALIGN(mdp->rx_buf_sz, 32),
+						 DMA_FROM_DEVICE);
+			}
+		}
+		ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring;
+		dma_free_coherent(&mdp->pdev->dev, ringsize, mdp->rx_ring,
+				  mdp->rx_desc_dma);
+		mdp->rx_ring = NULL;
+	}
+
+	/* Free Rx skb ringbuffer */
+	if (mdp->rx_skbuff) {
+		for (i = 0; i < mdp->num_rx_ring; i++)
+			dev_kfree_skb(mdp->rx_skbuff[i]);
+	}
+	kfree(mdp->rx_skbuff);
+	mdp->rx_skbuff = NULL;
+
+	if (mdp->tx_ring) {
+		sh_eth_tx_free(ndev, false);
+
+		ringsize = sizeof(struct sh_eth_txdesc) * mdp->num_tx_ring;
+		dma_free_coherent(&mdp->pdev->dev, ringsize, mdp->tx_ring,
+				  mdp->tx_desc_dma);
+		mdp->tx_ring = NULL;
+	}
+
+	/* Free Tx skb ringbuffer */
+	kfree(mdp->tx_skbuff);
+	mdp->tx_skbuff = NULL;
+}
+
+/* format skb and descriptor buffer */
+static void sh_eth_ring_format(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int i;
+	struct sk_buff *skb;
+	struct sh_eth_rxdesc *rxdesc = NULL;
+	struct sh_eth_txdesc *txdesc = NULL;
+	int rx_ringsize = sizeof(*rxdesc) * mdp->num_rx_ring;
+	int tx_ringsize = sizeof(*txdesc) * mdp->num_tx_ring;
+	int skbuff_size = mdp->rx_buf_sz + SH_ETH_RX_ALIGN + 32 - 1;
+	dma_addr_t dma_addr;
+	u32 buf_len;
+
+	mdp->cur_rx = 0;
+	mdp->cur_tx = 0;
+	mdp->dirty_rx = 0;
+	mdp->dirty_tx = 0;
+
+	memset(mdp->rx_ring, 0, rx_ringsize);
+
+	/* build Rx ring buffer */
+	for (i = 0; i < mdp->num_rx_ring; i++) {
+		/* skb */
+		mdp->rx_skbuff[i] = NULL;
+		skb = netdev_alloc_skb(ndev, skbuff_size);
+		if (skb == NULL)
+			break;
+		sh_eth_set_receive_align(skb);
+
+		/* The size of the buffer is a multiple of 32 bytes. */
+		buf_len = ALIGN(mdp->rx_buf_sz, 32);
+		dma_addr = dma_map_single(&mdp->pdev->dev, skb->data, buf_len,
+					  DMA_FROM_DEVICE);
+		if (dma_mapping_error(&mdp->pdev->dev, dma_addr)) {
+			kfree_skb(skb);
+			break;
+		}
+		mdp->rx_skbuff[i] = skb;
+
+		/* RX descriptor */
+		rxdesc = &mdp->rx_ring[i];
+		rxdesc->len = cpu_to_le32(buf_len << 16);
+		rxdesc->addr = cpu_to_le32(dma_addr);
+		rxdesc->status = cpu_to_le32(RD_RACT | RD_RFP);
+
+		/* Rx descriptor address set */
+		if (i == 0) {
+			sh_eth_write(ndev, mdp->rx_desc_dma, RDLAR);
+			if (mdp->cd->xdfar_rw)
+				sh_eth_write(ndev, mdp->rx_desc_dma, RDFAR);
+		}
+	}
+
+	mdp->dirty_rx = (u32) (i - mdp->num_rx_ring);
+
+	/* Mark the last entry as wrapping the ring. */
+	if (rxdesc)
+		rxdesc->status |= cpu_to_le32(RD_RDLE);
+
+	memset(mdp->tx_ring, 0, tx_ringsize);
+
+	/* build Tx ring buffer */
+	for (i = 0; i < mdp->num_tx_ring; i++) {
+		mdp->tx_skbuff[i] = NULL;
+		txdesc = &mdp->tx_ring[i];
+		txdesc->status = cpu_to_le32(TD_TFP);
+		txdesc->len = cpu_to_le32(0);
+		if (i == 0) {
+			/* Tx descriptor address set */
+			sh_eth_write(ndev, mdp->tx_desc_dma, TDLAR);
+			if (mdp->cd->xdfar_rw)
+				sh_eth_write(ndev, mdp->tx_desc_dma, TDFAR);
+		}
+	}
+
+	txdesc->status |= cpu_to_le32(TD_TDLE);
+}
+
+/* Get skb and descriptor buffer */
+static int sh_eth_ring_init(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int rx_ringsize, tx_ringsize;
+
+	/* +26 gets the maximum ethernet encapsulation, +7 & ~7 because the
+	 * card needs room to do 8 byte alignment, +2 so we can reserve
+	 * the first 2 bytes, and +16 gets room for the status word from the
+	 * card.
+	 */
+	mdp->rx_buf_sz = (ndev->mtu <= 1492 ? PKT_BUF_SZ :
+			  (((ndev->mtu + 26 + 7) & ~7) + 2 + 16));
+	if (mdp->cd->rpadir)
+		mdp->rx_buf_sz += NET_IP_ALIGN;
+
+	/* Allocate RX and TX skb rings */
+	mdp->rx_skbuff = kcalloc(mdp->num_rx_ring, sizeof(*mdp->rx_skbuff),
+				 GFP_KERNEL);
+	if (!mdp->rx_skbuff)
+		return -ENOMEM;
+
+	mdp->tx_skbuff = kcalloc(mdp->num_tx_ring, sizeof(*mdp->tx_skbuff),
+				 GFP_KERNEL);
+	if (!mdp->tx_skbuff)
+		goto ring_free;
+
+	/* Allocate all Rx descriptors. */
+	rx_ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring;
+	mdp->rx_ring = dma_alloc_coherent(&mdp->pdev->dev, rx_ringsize,
+					  &mdp->rx_desc_dma, GFP_KERNEL);
+	if (!mdp->rx_ring)
+		goto ring_free;
+
+	mdp->dirty_rx = 0;
+
+	/* Allocate all Tx descriptors. */
+	tx_ringsize = sizeof(struct sh_eth_txdesc) * mdp->num_tx_ring;
+	mdp->tx_ring = dma_alloc_coherent(&mdp->pdev->dev, tx_ringsize,
+					  &mdp->tx_desc_dma, GFP_KERNEL);
+	if (!mdp->tx_ring)
+		goto ring_free;
+	return 0;
+
+ring_free:
+	/* Free Rx and Tx skb ring buffer and DMA buffer */
+	sh_eth_ring_free(ndev);
+
+	return -ENOMEM;
+}
+
+static int sh_eth_dev_init(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int ret;
+
+	/* Soft Reset */
+	ret = mdp->cd->soft_reset(ndev);
+	if (ret)
+		return ret;
+
+	if (mdp->cd->rmiimode)
+		sh_eth_write(ndev, 0x1, RMIIMODE);
+
+	/* Descriptor format */
+	sh_eth_ring_format(ndev);
+	if (mdp->cd->rpadir)
+		sh_eth_write(ndev, NET_IP_ALIGN << 16, RPADIR);
+
+	/* all sh_eth int mask */
+	sh_eth_write(ndev, 0, EESIPR);
+
+#if defined(__LITTLE_ENDIAN)
+	if (mdp->cd->hw_swap)
+		sh_eth_write(ndev, EDMR_EL, EDMR);
+	else
+#endif
+		sh_eth_write(ndev, 0, EDMR);
+
+	/* FIFO size set */
+	sh_eth_write(ndev, mdp->cd->fdr_value, FDR);
+	sh_eth_write(ndev, 0, TFTR);
+
+	/* Frame recv control (enable multiple-packets per rx irq) */
+	sh_eth_write(ndev, RMCR_RNC, RMCR);
+
+	sh_eth_write(ndev, mdp->cd->trscer_err_mask, TRSCER);
+
+	/* DMA transfer burst mode */
+	if (mdp->cd->nbst)
+		sh_eth_modify(ndev, EDMR, EDMR_NBST, EDMR_NBST);
+
+	/* Burst cycle count upper-limit */
+	if (mdp->cd->bculr)
+		sh_eth_write(ndev, 0x800, BCULR);
+
+	sh_eth_write(ndev, mdp->cd->fcftr_value, FCFTR);
+
+	if (!mdp->cd->no_trimd)
+		sh_eth_write(ndev, 0, TRIMD);
+
+	/* Recv frame limit set register */
+	sh_eth_write(ndev, ndev->mtu + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN,
+		     RFLR);
+
+	sh_eth_modify(ndev, EESR, 0, 0);
+	mdp->irq_enabled = true;
+	sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR);
+
+	/* EMAC Mode: PAUSE prohibition; Duplex; RX Checksum; TX; RX */
+	sh_eth_write(ndev, ECMR_ZPF | (mdp->duplex ? ECMR_DM : 0) |
+		     (ndev->features & NETIF_F_RXCSUM ? ECMR_RCSC : 0) |
+		     ECMR_TE | ECMR_RE, ECMR);
+
+	if (mdp->cd->set_rate)
+		mdp->cd->set_rate(ndev);
+
+	/* E-MAC Status Register clear */
+	sh_eth_write(ndev, mdp->cd->ecsr_value, ECSR);
+
+	/* E-MAC Interrupt Enable register */
+	sh_eth_write(ndev, mdp->cd->ecsipr_value, ECSIPR);
+
+	/* Set MAC address */
+	update_mac_address(ndev);
+
+	/* mask reset */
+	if (mdp->cd->apr)
+		sh_eth_write(ndev, 1, APR);
+	if (mdp->cd->mpr)
+		sh_eth_write(ndev, 1, MPR);
+	if (mdp->cd->tpauser)
+		sh_eth_write(ndev, TPAUSER_UNLIMITED, TPAUSER);
+
+	/* Setting the Rx mode will start the Rx process. */
+	sh_eth_write(ndev, EDRRR_R, EDRRR);
+
+	return ret;
+}
+
+static void sh_eth_dev_exit(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int i;
+
+	/* Deactivate all TX descriptors, so DMA should stop at next
+	 * packet boundary if it's currently running
+	 */
+	for (i = 0; i < mdp->num_tx_ring; i++)
+		mdp->tx_ring[i].status &= ~cpu_to_le32(TD_TACT);
+
+	/* Disable TX FIFO egress to MAC */
+	sh_eth_rcv_snd_disable(ndev);
+
+	/* Stop RX DMA at next packet boundary */
+	sh_eth_write(ndev, 0, EDRRR);
+
+	/* Aside from TX DMA, we can't tell when the hardware is
+	 * really stopped, so we need to reset to make sure.
+	 * Before doing that, wait for long enough to *probably*
+	 * finish transmitting the last packet and poll stats.
+	 */
+	msleep(2); /* max frame time at 10 Mbps < 1250 us */
+	sh_eth_get_stats(ndev);
+	mdp->cd->soft_reset(ndev);
+
+	/* Set the RMII mode again if required */
+	if (mdp->cd->rmiimode)
+		sh_eth_write(ndev, 0x1, RMIIMODE);
+
+	/* Set MAC address again */
+	update_mac_address(ndev);
+}
+
+static void sh_eth_rx_csum(struct sk_buff *skb)
+{
+	u8 *hw_csum;
+
+	/* The hardware checksum is 2 bytes appended to packet data */
+	if (unlikely(skb->len < sizeof(__sum16)))
+		return;
+	hw_csum = skb_tail_pointer(skb) - sizeof(__sum16);
+	skb->csum = csum_unfold((__force __sum16)get_unaligned_le16(hw_csum));
+	skb->ip_summed = CHECKSUM_COMPLETE;
+	skb_trim(skb, skb->len - sizeof(__sum16));
+}
+
+/* Packet receive function */
+static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	struct sh_eth_rxdesc *rxdesc;
+
+	int entry = mdp->cur_rx % mdp->num_rx_ring;
+	int boguscnt = (mdp->dirty_rx + mdp->num_rx_ring) - mdp->cur_rx;
+	int limit;
+	struct sk_buff *skb;
+	u32 desc_status;
+	int skbuff_size = mdp->rx_buf_sz + SH_ETH_RX_ALIGN + 32 - 1;
+	dma_addr_t dma_addr;
+	u16 pkt_len;
+	u32 buf_len;
+
+	boguscnt = min(boguscnt, *quota);
+	limit = boguscnt;
+	rxdesc = &mdp->rx_ring[entry];
+	while (!(rxdesc->status & cpu_to_le32(RD_RACT))) {
+		/* RACT bit must be checked before all the following reads */
+		dma_rmb();
+		desc_status = le32_to_cpu(rxdesc->status);
+		pkt_len = le32_to_cpu(rxdesc->len) & RD_RFL;
+
+		if (--boguscnt < 0)
+			break;
+
+		netif_info(mdp, rx_status, ndev,
+			   "rx entry %d status 0x%08x len %d\n",
+			   entry, desc_status, pkt_len);
+
+		if (!(desc_status & RDFEND))
+			ndev->stats.rx_length_errors++;
+
+		/* In case of almost all GETHER/ETHERs, the Receive Frame State
+		 * (RFS) bits in the Receive Descriptor 0 are from bit 9 to
+		 * bit 0. However, in case of the R8A7740 and R7S72100
+		 * the RFS bits are from bit 25 to bit 16. So, the
+		 * driver needs right shifting by 16.
+		 */
+		if (mdp->cd->csmr)
+			desc_status >>= 16;
+
+		skb = mdp->rx_skbuff[entry];
+		if (desc_status & (RD_RFS1 | RD_RFS2 | RD_RFS3 | RD_RFS4 |
+				   RD_RFS5 | RD_RFS6 | RD_RFS10)) {
+			ndev->stats.rx_errors++;
+			if (desc_status & RD_RFS1)
+				ndev->stats.rx_crc_errors++;
+			if (desc_status & RD_RFS2)
+				ndev->stats.rx_frame_errors++;
+			if (desc_status & RD_RFS3)
+				ndev->stats.rx_length_errors++;
+			if (desc_status & RD_RFS4)
+				ndev->stats.rx_length_errors++;
+			if (desc_status & RD_RFS6)
+				ndev->stats.rx_missed_errors++;
+			if (desc_status & RD_RFS10)
+				ndev->stats.rx_over_errors++;
+		} else	if (skb) {
+			dma_addr = le32_to_cpu(rxdesc->addr);
+			if (!mdp->cd->hw_swap)
+				sh_eth_soft_swap(
+					phys_to_virt(ALIGN(dma_addr, 4)),
+					pkt_len + 2);
+			mdp->rx_skbuff[entry] = NULL;
+			if (mdp->cd->rpadir)
+				skb_reserve(skb, NET_IP_ALIGN);
+			dma_unmap_single(&mdp->pdev->dev, dma_addr,
+					 ALIGN(mdp->rx_buf_sz, 32),
+					 DMA_FROM_DEVICE);
+			skb_put(skb, pkt_len);
+			skb->protocol = eth_type_trans(skb, ndev);
+			if (ndev->features & NETIF_F_RXCSUM)
+				sh_eth_rx_csum(skb);
+			netif_receive_skb(skb);
+			ndev->stats.rx_packets++;
+			ndev->stats.rx_bytes += pkt_len;
+			if (desc_status & RD_RFS8)
+				ndev->stats.multicast++;
+		}
+		entry = (++mdp->cur_rx) % mdp->num_rx_ring;
+		rxdesc = &mdp->rx_ring[entry];
+	}
+
+	/* Refill the Rx ring buffers. */
+	for (; mdp->cur_rx - mdp->dirty_rx > 0; mdp->dirty_rx++) {
+		entry = mdp->dirty_rx % mdp->num_rx_ring;
+		rxdesc = &mdp->rx_ring[entry];
+		/* The size of the buffer is 32 byte boundary. */
+		buf_len = ALIGN(mdp->rx_buf_sz, 32);
+		rxdesc->len = cpu_to_le32(buf_len << 16);
+
+		if (mdp->rx_skbuff[entry] == NULL) {
+			skb = netdev_alloc_skb(ndev, skbuff_size);
+			if (skb == NULL)
+				break;	/* Better luck next round. */
+			sh_eth_set_receive_align(skb);
+			dma_addr = dma_map_single(&mdp->pdev->dev, skb->data,
+						  buf_len, DMA_FROM_DEVICE);
+			if (dma_mapping_error(&mdp->pdev->dev, dma_addr)) {
+				kfree_skb(skb);
+				break;
+			}
+			mdp->rx_skbuff[entry] = skb;
+
+			skb_checksum_none_assert(skb);
+			rxdesc->addr = cpu_to_le32(dma_addr);
+		}
+		dma_wmb(); /* RACT bit must be set after all the above writes */
+		if (entry >= mdp->num_rx_ring - 1)
+			rxdesc->status |=
+				cpu_to_le32(RD_RACT | RD_RFP | RD_RDLE);
+		else
+			rxdesc->status |= cpu_to_le32(RD_RACT | RD_RFP);
+	}
+
+	/* Restart Rx engine if stopped. */
+	/* If we don't need to check status, don't. -KDU */
+	if (!(sh_eth_read(ndev, EDRRR) & EDRRR_R)) {
+		/* fix the values for the next receiving if RDE is set */
+		if (intr_status & EESR_RDE && !mdp->cd->no_xdfar) {
+			u32 count = (sh_eth_read(ndev, RDFAR) -
+				     sh_eth_read(ndev, RDLAR)) >> 4;
+
+			mdp->cur_rx = count;
+			mdp->dirty_rx = count;
+		}
+		sh_eth_write(ndev, EDRRR_R, EDRRR);
+	}
+
+	*quota -= limit - boguscnt - 1;
+
+	return *quota <= 0;
+}
+
+static void sh_eth_rcv_snd_disable(struct net_device *ndev)
+{
+	/* disable tx and rx */
+	sh_eth_modify(ndev, ECMR, ECMR_RE | ECMR_TE, 0);
+}
+
+static void sh_eth_rcv_snd_enable(struct net_device *ndev)
+{
+	/* enable tx and rx */
+	sh_eth_modify(ndev, ECMR, ECMR_RE | ECMR_TE, ECMR_RE | ECMR_TE);
+}
+
+/* E-MAC interrupt handler */
+static void sh_eth_emac_interrupt(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	u32 felic_stat;
+	u32 link_stat;
+
+	felic_stat = sh_eth_read(ndev, ECSR) & sh_eth_read(ndev, ECSIPR);
+	sh_eth_write(ndev, felic_stat, ECSR);	/* clear int */
+	if (felic_stat & ECSR_ICD)
+		ndev->stats.tx_carrier_errors++;
+	if (felic_stat & ECSR_MPD)
+		pm_wakeup_event(&mdp->pdev->dev, 0);
+	if (felic_stat & ECSR_LCHNG) {
+		/* Link Changed */
+		if (mdp->cd->no_psr || mdp->no_ether_link)
+			return;
+		link_stat = sh_eth_read(ndev, PSR);
+		if (mdp->ether_link_active_low)
+			link_stat = ~link_stat;
+		if (!(link_stat & PSR_LMON)) {
+			sh_eth_rcv_snd_disable(ndev);
+		} else {
+			/* Link Up */
+			sh_eth_modify(ndev, EESIPR, EESIPR_ECIIP, 0);
+			/* clear int */
+			sh_eth_modify(ndev, ECSR, 0, 0);
+			sh_eth_modify(ndev, EESIPR, EESIPR_ECIIP, EESIPR_ECIIP);
+			/* enable tx and rx */
+			sh_eth_rcv_snd_enable(ndev);
+		}
+	}
+}
+
+/* error control function */
+static void sh_eth_error(struct net_device *ndev, u32 intr_status)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	u32 mask;
+
+	if (intr_status & EESR_TWB) {
+		/* Unused write back interrupt */
+		if (intr_status & EESR_TABT) {	/* Transmit Abort int */
+			ndev->stats.tx_aborted_errors++;
+			netif_err(mdp, tx_err, ndev, "Transmit Abort\n");
+		}
+	}
+
+	if (intr_status & EESR_RABT) {
+		/* Receive Abort int */
+		if (intr_status & EESR_RFRMER) {
+			/* Receive Frame Overflow int */
+			ndev->stats.rx_frame_errors++;
+		}
+	}
+
+	if (intr_status & EESR_TDE) {
+		/* Transmit Descriptor Empty int */
+		ndev->stats.tx_fifo_errors++;
+		netif_err(mdp, tx_err, ndev, "Transmit Descriptor Empty\n");
+	}
+
+	if (intr_status & EESR_TFE) {
+		/* FIFO under flow */
+		ndev->stats.tx_fifo_errors++;
+		netif_err(mdp, tx_err, ndev, "Transmit FIFO Under flow\n");
+	}
+
+	if (intr_status & EESR_RDE) {
+		/* Receive Descriptor Empty int */
+		ndev->stats.rx_over_errors++;
+	}
+
+	if (intr_status & EESR_RFE) {
+		/* Receive FIFO Overflow int */
+		ndev->stats.rx_fifo_errors++;
+	}
+
+	if (!mdp->cd->no_ade && (intr_status & EESR_ADE)) {
+		/* Address Error */
+		ndev->stats.tx_fifo_errors++;
+		netif_err(mdp, tx_err, ndev, "Address Error\n");
+	}
+
+	mask = EESR_TWB | EESR_TABT | EESR_ADE | EESR_TDE | EESR_TFE;
+	if (mdp->cd->no_ade)
+		mask &= ~EESR_ADE;
+	if (intr_status & mask) {
+		/* Tx error */
+		u32 edtrr = sh_eth_read(ndev, EDTRR);
+
+		/* dmesg */
+		netdev_err(ndev, "TX error. status=%8.8x cur_tx=%8.8x dirty_tx=%8.8x state=%8.8x EDTRR=%8.8x.\n",
+			   intr_status, mdp->cur_tx, mdp->dirty_tx,
+			   (u32)ndev->state, edtrr);
+		/* dirty buffer free */
+		sh_eth_tx_free(ndev, true);
+
+		/* SH7712 BUG */
+		if (edtrr ^ mdp->cd->edtrr_trns) {
+			/* tx dma start */
+			sh_eth_write(ndev, mdp->cd->edtrr_trns, EDTRR);
+		}
+		/* wakeup */
+		netif_wake_queue(ndev);
+	}
+}
+
+static irqreturn_t sh_eth_interrupt(int irq, void *netdev)
+{
+	struct net_device *ndev = netdev;
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	struct sh_eth_cpu_data *cd = mdp->cd;
+	irqreturn_t ret = IRQ_NONE;
+	u32 intr_status, intr_enable;
+
+	spin_lock(&mdp->lock);
+
+	/* Get interrupt status */
+	intr_status = sh_eth_read(ndev, EESR);
+	/* Mask it with the interrupt mask, forcing ECI interrupt  to be always
+	 * enabled since it's the one that  comes  thru regardless of the mask,
+	 * and  we need to fully handle it  in sh_eth_emac_interrupt() in order
+	 * to quench it as it doesn't get cleared by just writing 1 to the  ECI
+	 * bit...
+	 */
+	intr_enable = sh_eth_read(ndev, EESIPR);
+	intr_status &= intr_enable | EESIPR_ECIIP;
+	if (intr_status & (EESR_RX_CHECK | cd->tx_check | EESR_ECI |
+			   cd->eesr_err_check))
+		ret = IRQ_HANDLED;
+	else
+		goto out;
+
+	if (unlikely(!mdp->irq_enabled)) {
+		sh_eth_write(ndev, 0, EESIPR);
+		goto out;
+	}
+
+	if (intr_status & EESR_RX_CHECK) {
+		if (napi_schedule_prep(&mdp->napi)) {
+			/* Mask Rx interrupts */
+			sh_eth_write(ndev, intr_enable & ~EESR_RX_CHECK,
+				     EESIPR);
+			__napi_schedule(&mdp->napi);
+		} else {
+			netdev_warn(ndev,
+				    "ignoring interrupt, status 0x%08x, mask 0x%08x.\n",
+				    intr_status, intr_enable);
+		}
+	}
+
+	/* Tx Check */
+	if (intr_status & cd->tx_check) {
+		/* Clear Tx interrupts */
+		sh_eth_write(ndev, intr_status & cd->tx_check, EESR);
+
+		sh_eth_tx_free(ndev, true);
+		netif_wake_queue(ndev);
+	}
+
+	/* E-MAC interrupt */
+	if (intr_status & EESR_ECI)
+		sh_eth_emac_interrupt(ndev);
+
+	if (intr_status & cd->eesr_err_check) {
+		/* Clear error interrupts */
+		sh_eth_write(ndev, intr_status & cd->eesr_err_check, EESR);
+
+		sh_eth_error(ndev, intr_status);
+	}
+
+out:
+	spin_unlock(&mdp->lock);
+
+	return ret;
+}
+
+static int sh_eth_poll(struct napi_struct *napi, int budget)
+{
+	struct sh_eth_private *mdp = container_of(napi, struct sh_eth_private,
+						  napi);
+	struct net_device *ndev = napi->dev;
+	int quota = budget;
+	u32 intr_status;
+
+	for (;;) {
+		intr_status = sh_eth_read(ndev, EESR);
+		if (!(intr_status & EESR_RX_CHECK))
+			break;
+		/* Clear Rx interrupts */
+		sh_eth_write(ndev, intr_status & EESR_RX_CHECK, EESR);
+
+		if (sh_eth_rx(ndev, intr_status, &quota))
+			goto out;
+	}
+
+	napi_complete(napi);
+
+	/* Reenable Rx interrupts */
+	if (mdp->irq_enabled)
+		sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR);
+out:
+	return budget - quota;
+}
+
+/* PHY state control function */
+static void sh_eth_adjust_link(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	struct phy_device *phydev = ndev->phydev;
+	unsigned long flags;
+	int new_state = 0;
+
+	spin_lock_irqsave(&mdp->lock, flags);
+
+	/* Disable TX and RX right over here, if E-MAC change is ignored */
+	if (mdp->cd->no_psr || mdp->no_ether_link)
+		sh_eth_rcv_snd_disable(ndev);
+
+	if (phydev->link) {
+		if (phydev->duplex != mdp->duplex) {
+			new_state = 1;
+			mdp->duplex = phydev->duplex;
+			if (mdp->cd->set_duplex)
+				mdp->cd->set_duplex(ndev);
+		}
+
+		if (phydev->speed != mdp->speed) {
+			new_state = 1;
+			mdp->speed = phydev->speed;
+			if (mdp->cd->set_rate)
+				mdp->cd->set_rate(ndev);
+		}
+		if (!mdp->link) {
+			sh_eth_modify(ndev, ECMR, ECMR_TXF, 0);
+			new_state = 1;
+			mdp->link = phydev->link;
+		}
+	} else if (mdp->link) {
+		new_state = 1;
+		mdp->link = 0;
+		mdp->speed = 0;
+		mdp->duplex = -1;
+	}
+
+	/* Enable TX and RX right over here, if E-MAC change is ignored */
+	if ((mdp->cd->no_psr || mdp->no_ether_link) && phydev->link)
+		sh_eth_rcv_snd_enable(ndev);
+
+	spin_unlock_irqrestore(&mdp->lock, flags);
+
+	if (new_state && netif_msg_link(mdp))
+		phy_print_status(phydev);
+}
+
+/* PHY init function */
+static int sh_eth_phy_init(struct net_device *ndev)
+{
+	struct device_node *np = ndev->dev.parent->of_node;
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	struct phy_device *phydev;
+
+	mdp->link = 0;
+	mdp->speed = 0;
+	mdp->duplex = -1;
+
+	/* Try connect to PHY */
+	if (np) {
+		struct device_node *pn;
+
+		pn = of_parse_phandle(np, "phy-handle", 0);
+		phydev = of_phy_connect(ndev, pn,
+					sh_eth_adjust_link, 0,
+					mdp->phy_interface);
+
+		of_node_put(pn);
+		if (!phydev)
+			phydev = ERR_PTR(-ENOENT);
+	} else {
+		char phy_id[MII_BUS_ID_SIZE + 3];
+
+		snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT,
+			 mdp->mii_bus->id, mdp->phy_id);
+
+		phydev = phy_connect(ndev, phy_id, sh_eth_adjust_link,
+				     mdp->phy_interface);
+	}
+
+	if (IS_ERR(phydev)) {
+		netdev_err(ndev, "failed to connect PHY\n");
+		return PTR_ERR(phydev);
+	}
+
+	/* mask with MAC supported features */
+	if (mdp->cd->register_type != SH_ETH_REG_GIGABIT)
+		phy_set_max_speed(phydev, SPEED_100);
+
+	phy_attached_info(phydev);
+
+	return 0;
+}
+
+/* PHY control start function */
+static int sh_eth_phy_start(struct net_device *ndev)
+{
+	int ret;
+
+	ret = sh_eth_phy_init(ndev);
+	if (ret)
+		return ret;
+
+	phy_start(ndev->phydev);
+
+	return 0;
+}
+
+/* If it is ever necessary to increase SH_ETH_REG_DUMP_MAX_REGS, the
+ * version must be bumped as well.  Just adding registers up to that
+ * limit is fine, as long as the existing register indices don't
+ * change.
+ */
+#define SH_ETH_REG_DUMP_VERSION		1
+#define SH_ETH_REG_DUMP_MAX_REGS	256
+
+static size_t __sh_eth_get_regs(struct net_device *ndev, u32 *buf)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	struct sh_eth_cpu_data *cd = mdp->cd;
+	u32 *valid_map;
+	size_t len;
+
+	BUILD_BUG_ON(SH_ETH_MAX_REGISTER_OFFSET > SH_ETH_REG_DUMP_MAX_REGS);
+
+	/* Dump starts with a bitmap that tells ethtool which
+	 * registers are defined for this chip.
+	 */
+	len = DIV_ROUND_UP(SH_ETH_REG_DUMP_MAX_REGS, 32);
+	if (buf) {
+		valid_map = buf;
+		buf += len;
+	} else {
+		valid_map = NULL;
+	}
+
+	/* Add a register to the dump, if it has a defined offset.
+	 * This automatically skips most undefined registers, but for
+	 * some it is also necessary to check a capability flag in
+	 * struct sh_eth_cpu_data.
+	 */
+#define mark_reg_valid(reg) valid_map[reg / 32] |= 1U << (reg % 32)
+#define add_reg_from(reg, read_expr) do {				\
+		if (mdp->reg_offset[reg] != SH_ETH_OFFSET_INVALID) {	\
+			if (buf) {					\
+				mark_reg_valid(reg);			\
+				*buf++ = read_expr;			\
+			}						\
+			++len;						\
+		}							\
+	} while (0)
+#define add_reg(reg) add_reg_from(reg, sh_eth_read(ndev, reg))
+#define add_tsu_reg(reg) add_reg_from(reg, sh_eth_tsu_read(mdp, reg))
+
+	add_reg(EDSR);
+	add_reg(EDMR);
+	add_reg(EDTRR);
+	add_reg(EDRRR);
+	add_reg(EESR);
+	add_reg(EESIPR);
+	add_reg(TDLAR);
+	if (!cd->no_xdfar)
+		add_reg(TDFAR);
+	add_reg(TDFXR);
+	add_reg(TDFFR);
+	add_reg(RDLAR);
+	if (!cd->no_xdfar)
+		add_reg(RDFAR);
+	add_reg(RDFXR);
+	add_reg(RDFFR);
+	add_reg(TRSCER);
+	add_reg(RMFCR);
+	add_reg(TFTR);
+	add_reg(FDR);
+	add_reg(RMCR);
+	add_reg(TFUCR);
+	add_reg(RFOCR);
+	if (cd->rmiimode)
+		add_reg(RMIIMODE);
+	add_reg(FCFTR);
+	if (cd->rpadir)
+		add_reg(RPADIR);
+	if (!cd->no_trimd)
+		add_reg(TRIMD);
+	add_reg(ECMR);
+	add_reg(ECSR);
+	add_reg(ECSIPR);
+	add_reg(PIR);
+	if (!cd->no_psr)
+		add_reg(PSR);
+	add_reg(RDMLR);
+	add_reg(RFLR);
+	add_reg(IPGR);
+	if (cd->apr)
+		add_reg(APR);
+	if (cd->mpr)
+		add_reg(MPR);
+	add_reg(RFCR);
+	add_reg(RFCF);
+	if (cd->tpauser)
+		add_reg(TPAUSER);
+	add_reg(TPAUSECR);
+	if (cd->gecmr)
+		add_reg(GECMR);
+	if (cd->bculr)
+		add_reg(BCULR);
+	add_reg(MAHR);
+	add_reg(MALR);
+	if (!cd->no_tx_cntrs) {
+		add_reg(TROCR);
+		add_reg(CDCR);
+		add_reg(LCCR);
+		add_reg(CNDCR);
+	}
+	add_reg(CEFCR);
+	add_reg(FRECR);
+	add_reg(TSFRCR);
+	add_reg(TLFRCR);
+	if (cd->cexcr) {
+		add_reg(CERCR);
+		add_reg(CEECR);
+	}
+	add_reg(MAFCR);
+	if (cd->rtrate)
+		add_reg(RTRATE);
+	if (cd->csmr)
+		add_reg(CSMR);
+	if (cd->select_mii)
+		add_reg(RMII_MII);
+	if (cd->tsu) {
+		add_tsu_reg(ARSTR);
+		add_tsu_reg(TSU_CTRST);
+		if (cd->dual_port) {
+			add_tsu_reg(TSU_FWEN0);
+			add_tsu_reg(TSU_FWEN1);
+			add_tsu_reg(TSU_FCM);
+			add_tsu_reg(TSU_BSYSL0);
+			add_tsu_reg(TSU_BSYSL1);
+			add_tsu_reg(TSU_PRISL0);
+			add_tsu_reg(TSU_PRISL1);
+			add_tsu_reg(TSU_FWSL0);
+			add_tsu_reg(TSU_FWSL1);
+		}
+		add_tsu_reg(TSU_FWSLC);
+		if (cd->dual_port) {
+			add_tsu_reg(TSU_QTAGM0);
+			add_tsu_reg(TSU_QTAGM1);
+			add_tsu_reg(TSU_FWSR);
+			add_tsu_reg(TSU_FWINMK);
+			add_tsu_reg(TSU_ADQT0);
+			add_tsu_reg(TSU_ADQT1);
+			add_tsu_reg(TSU_VTAG0);
+			add_tsu_reg(TSU_VTAG1);
+		}
+		add_tsu_reg(TSU_ADSBSY);
+		add_tsu_reg(TSU_TEN);
+		add_tsu_reg(TSU_POST1);
+		add_tsu_reg(TSU_POST2);
+		add_tsu_reg(TSU_POST3);
+		add_tsu_reg(TSU_POST4);
+		/* This is the start of a table, not just a single register. */
+		if (buf) {
+			unsigned int i;
+
+			mark_reg_valid(TSU_ADRH0);
+			for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES * 2; i++)
+				*buf++ = ioread32(mdp->tsu_addr +
+						  mdp->reg_offset[TSU_ADRH0] +
+						  i * 4);
+		}
+		len += SH_ETH_TSU_CAM_ENTRIES * 2;
+	}
+
+#undef mark_reg_valid
+#undef add_reg_from
+#undef add_reg
+#undef add_tsu_reg
+
+	return len * 4;
+}
+
+static int sh_eth_get_regs_len(struct net_device *ndev)
+{
+	return __sh_eth_get_regs(ndev, NULL);
+}
+
+static void sh_eth_get_regs(struct net_device *ndev, struct ethtool_regs *regs,
+			    void *buf)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	regs->version = SH_ETH_REG_DUMP_VERSION;
+
+	pm_runtime_get_sync(&mdp->pdev->dev);
+	__sh_eth_get_regs(ndev, buf);
+	pm_runtime_put_sync(&mdp->pdev->dev);
+}
+
+static u32 sh_eth_get_msglevel(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	return mdp->msg_enable;
+}
+
+static void sh_eth_set_msglevel(struct net_device *ndev, u32 value)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	mdp->msg_enable = value;
+}
+
+static const char sh_eth_gstrings_stats[][ETH_GSTRING_LEN] = {
+	"rx_current", "tx_current",
+	"rx_dirty", "tx_dirty",
+};
+#define SH_ETH_STATS_LEN  ARRAY_SIZE(sh_eth_gstrings_stats)
+
+static int sh_eth_get_sset_count(struct net_device *netdev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+		return SH_ETH_STATS_LEN;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void sh_eth_get_ethtool_stats(struct net_device *ndev,
+				     struct ethtool_stats *stats, u64 *data)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int i = 0;
+
+	/* device-specific stats */
+	data[i++] = mdp->cur_rx;
+	data[i++] = mdp->cur_tx;
+	data[i++] = mdp->dirty_rx;
+	data[i++] = mdp->dirty_tx;
+}
+
+static void sh_eth_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
+{
+	switch (stringset) {
+	case ETH_SS_STATS:
+		memcpy(data, sh_eth_gstrings_stats,
+		       sizeof(sh_eth_gstrings_stats));
+		break;
+	}
+}
+
+static void sh_eth_get_ringparam(struct net_device *ndev,
+				 struct ethtool_ringparam *ring,
+				 struct kernel_ethtool_ringparam *kernel_ring,
+				 struct netlink_ext_ack *extack)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	ring->rx_max_pending = RX_RING_MAX;
+	ring->tx_max_pending = TX_RING_MAX;
+	ring->rx_pending = mdp->num_rx_ring;
+	ring->tx_pending = mdp->num_tx_ring;
+}
+
+static int sh_eth_set_ringparam(struct net_device *ndev,
+				struct ethtool_ringparam *ring,
+				struct kernel_ethtool_ringparam *kernel_ring,
+				struct netlink_ext_ack *extack)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int ret;
+
+	if (ring->tx_pending > TX_RING_MAX ||
+	    ring->rx_pending > RX_RING_MAX ||
+	    ring->tx_pending < TX_RING_MIN ||
+	    ring->rx_pending < RX_RING_MIN)
+		return -EINVAL;
+	if (ring->rx_mini_pending || ring->rx_jumbo_pending)
+		return -EINVAL;
+
+	if (netif_running(ndev)) {
+		netif_device_detach(ndev);
+		netif_tx_disable(ndev);
+
+		/* Serialise with the interrupt handler and NAPI, then
+		 * disable interrupts.  We have to clear the
+		 * irq_enabled flag first to ensure that interrupts
+		 * won't be re-enabled.
+		 */
+		mdp->irq_enabled = false;
+		synchronize_irq(ndev->irq);
+		napi_synchronize(&mdp->napi);
+		sh_eth_write(ndev, 0x0000, EESIPR);
+
+		sh_eth_dev_exit(ndev);
+
+		/* Free all the skbuffs in the Rx queue and the DMA buffers. */
+		sh_eth_ring_free(ndev);
+	}
+
+	/* Set new parameters */
+	mdp->num_rx_ring = ring->rx_pending;
+	mdp->num_tx_ring = ring->tx_pending;
+
+	if (netif_running(ndev)) {
+		ret = sh_eth_ring_init(ndev);
+		if (ret < 0) {
+			netdev_err(ndev, "%s: sh_eth_ring_init failed.\n",
+				   __func__);
+			return ret;
+		}
+		ret = sh_eth_dev_init(ndev);
+		if (ret < 0) {
+			netdev_err(ndev, "%s: sh_eth_dev_init failed.\n",
+				   __func__);
+			return ret;
+		}
+
+		netif_device_attach(ndev);
+	}
+
+	return 0;
+}
+
+static void sh_eth_get_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	wol->supported = 0;
+	wol->wolopts = 0;
+
+	if (mdp->cd->magic) {
+		wol->supported = WAKE_MAGIC;
+		wol->wolopts = mdp->wol_enabled ? WAKE_MAGIC : 0;
+	}
+}
+
+static int sh_eth_set_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	if (!mdp->cd->magic || wol->wolopts & ~WAKE_MAGIC)
+		return -EOPNOTSUPP;
+
+	mdp->wol_enabled = !!(wol->wolopts & WAKE_MAGIC);
+
+	device_set_wakeup_enable(&mdp->pdev->dev, mdp->wol_enabled);
+
+	return 0;
+}
+
+static const struct ethtool_ops sh_eth_ethtool_ops = {
+	.get_regs_len	= sh_eth_get_regs_len,
+	.get_regs	= sh_eth_get_regs,
+	.nway_reset	= phy_ethtool_nway_reset,
+	.get_msglevel	= sh_eth_get_msglevel,
+	.set_msglevel	= sh_eth_set_msglevel,
+	.get_link	= ethtool_op_get_link,
+	.get_strings	= sh_eth_get_strings,
+	.get_ethtool_stats  = sh_eth_get_ethtool_stats,
+	.get_sset_count     = sh_eth_get_sset_count,
+	.get_ringparam	= sh_eth_get_ringparam,
+	.set_ringparam	= sh_eth_set_ringparam,
+	.get_link_ksettings = phy_ethtool_get_link_ksettings,
+	.set_link_ksettings = phy_ethtool_set_link_ksettings,
+	.get_wol	= sh_eth_get_wol,
+	.set_wol	= sh_eth_set_wol,
+};
+
+/* network device open function */
+static int sh_eth_open(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int ret;
+
+	pm_runtime_get_sync(&mdp->pdev->dev);
+
+	napi_enable(&mdp->napi);
+
+	ret = request_irq(ndev->irq, sh_eth_interrupt,
+			  mdp->cd->irq_flags, ndev->name, ndev);
+	if (ret) {
+		netdev_err(ndev, "Can not assign IRQ number\n");
+		goto out_napi_off;
+	}
+
+	/* Descriptor set */
+	ret = sh_eth_ring_init(ndev);
+	if (ret)
+		goto out_free_irq;
+
+	/* device init */
+	ret = sh_eth_dev_init(ndev);
+	if (ret)
+		goto out_free_irq;
+
+	/* PHY control start*/
+	ret = sh_eth_phy_start(ndev);
+	if (ret)
+		goto out_free_irq;
+
+	netif_start_queue(ndev);
+
+	mdp->is_opened = 1;
+
+	return ret;
+
+out_free_irq:
+	free_irq(ndev->irq, ndev);
+out_napi_off:
+	napi_disable(&mdp->napi);
+	pm_runtime_put_sync(&mdp->pdev->dev);
+	return ret;
+}
+
+/* Timeout function */
+static void sh_eth_tx_timeout(struct net_device *ndev, unsigned int txqueue)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	struct sh_eth_rxdesc *rxdesc;
+	int i;
+
+	netif_stop_queue(ndev);
+
+	netif_err(mdp, timer, ndev,
+		  "transmit timed out, status %8.8x, resetting...\n",
+		  sh_eth_read(ndev, EESR));
+
+	/* tx_errors count up */
+	ndev->stats.tx_errors++;
+
+	/* Free all the skbuffs in the Rx queue. */
+	for (i = 0; i < mdp->num_rx_ring; i++) {
+		rxdesc = &mdp->rx_ring[i];
+		rxdesc->status = cpu_to_le32(0);
+		rxdesc->addr = cpu_to_le32(0xBADF00D0);
+		dev_kfree_skb(mdp->rx_skbuff[i]);
+		mdp->rx_skbuff[i] = NULL;
+	}
+	for (i = 0; i < mdp->num_tx_ring; i++) {
+		dev_kfree_skb(mdp->tx_skbuff[i]);
+		mdp->tx_skbuff[i] = NULL;
+	}
+
+	/* device init */
+	sh_eth_dev_init(ndev);
+
+	netif_start_queue(ndev);
+}
+
+/* Packet transmit function */
+static netdev_tx_t sh_eth_start_xmit(struct sk_buff *skb,
+				     struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	struct sh_eth_txdesc *txdesc;
+	dma_addr_t dma_addr;
+	u32 entry;
+	unsigned long flags;
+
+	spin_lock_irqsave(&mdp->lock, flags);
+	if ((mdp->cur_tx - mdp->dirty_tx) >= (mdp->num_tx_ring - 4)) {
+		if (!sh_eth_tx_free(ndev, true)) {
+			netif_warn(mdp, tx_queued, ndev, "TxFD exhausted.\n");
+			netif_stop_queue(ndev);
+			spin_unlock_irqrestore(&mdp->lock, flags);
+			return NETDEV_TX_BUSY;
+		}
+	}
+	spin_unlock_irqrestore(&mdp->lock, flags);
+
+	if (skb_put_padto(skb, ETH_ZLEN))
+		return NETDEV_TX_OK;
+
+	entry = mdp->cur_tx % mdp->num_tx_ring;
+	mdp->tx_skbuff[entry] = skb;
+	txdesc = &mdp->tx_ring[entry];
+	/* soft swap. */
+	if (!mdp->cd->hw_swap)
+		sh_eth_soft_swap(PTR_ALIGN(skb->data, 4), skb->len + 2);
+	dma_addr = dma_map_single(&mdp->pdev->dev, skb->data, skb->len,
+				  DMA_TO_DEVICE);
+	if (dma_mapping_error(&mdp->pdev->dev, dma_addr)) {
+		kfree_skb(skb);
+		return NETDEV_TX_OK;
+	}
+	txdesc->addr = cpu_to_le32(dma_addr);
+	txdesc->len  = cpu_to_le32(skb->len << 16);
+
+	dma_wmb(); /* TACT bit must be set after all the above writes */
+	if (entry >= mdp->num_tx_ring - 1)
+		txdesc->status |= cpu_to_le32(TD_TACT | TD_TDLE);
+	else
+		txdesc->status |= cpu_to_le32(TD_TACT);
+
+	wmb(); /* cur_tx must be incremented after TACT bit was set */
+	mdp->cur_tx++;
+
+	if (!(sh_eth_read(ndev, EDTRR) & mdp->cd->edtrr_trns))
+		sh_eth_write(ndev, mdp->cd->edtrr_trns, EDTRR);
+
+	return NETDEV_TX_OK;
+}
+
+/* The statistics registers have write-clear behaviour, which means we
+ * will lose any increment between the read and write.  We mitigate
+ * this by only clearing when we read a non-zero value, so we will
+ * never falsely report a total of zero.
+ */
+static void
+sh_eth_update_stat(struct net_device *ndev, unsigned long *stat, int reg)
+{
+	u32 delta = sh_eth_read(ndev, reg);
+
+	if (delta) {
+		*stat += delta;
+		sh_eth_write(ndev, 0, reg);
+	}
+}
+
+static struct net_device_stats *sh_eth_get_stats(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	if (mdp->cd->no_tx_cntrs)
+		return &ndev->stats;
+
+	if (!mdp->is_opened)
+		return &ndev->stats;
+
+	sh_eth_update_stat(ndev, &ndev->stats.tx_dropped, TROCR);
+	sh_eth_update_stat(ndev, &ndev->stats.collisions, CDCR);
+	sh_eth_update_stat(ndev, &ndev->stats.tx_carrier_errors, LCCR);
+
+	if (mdp->cd->cexcr) {
+		sh_eth_update_stat(ndev, &ndev->stats.tx_carrier_errors,
+				   CERCR);
+		sh_eth_update_stat(ndev, &ndev->stats.tx_carrier_errors,
+				   CEECR);
+	} else {
+		sh_eth_update_stat(ndev, &ndev->stats.tx_carrier_errors,
+				   CNDCR);
+	}
+
+	return &ndev->stats;
+}
+
+/* device close function */
+static int sh_eth_close(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	netif_stop_queue(ndev);
+
+	/* Serialise with the interrupt handler and NAPI, then disable
+	 * interrupts.  We have to clear the irq_enabled flag first to
+	 * ensure that interrupts won't be re-enabled.
+	 */
+	mdp->irq_enabled = false;
+	synchronize_irq(ndev->irq);
+	napi_disable(&mdp->napi);
+	sh_eth_write(ndev, 0x0000, EESIPR);
+
+	sh_eth_dev_exit(ndev);
+
+	/* PHY Disconnect */
+	if (ndev->phydev) {
+		phy_stop(ndev->phydev);
+		phy_disconnect(ndev->phydev);
+	}
+
+	free_irq(ndev->irq, ndev);
+
+	/* Free all the skbuffs in the Rx queue and the DMA buffer. */
+	sh_eth_ring_free(ndev);
+
+	mdp->is_opened = 0;
+
+	pm_runtime_put(&mdp->pdev->dev);
+
+	return 0;
+}
+
+static int sh_eth_change_mtu(struct net_device *ndev, int new_mtu)
+{
+	if (netif_running(ndev))
+		return -EBUSY;
+
+	ndev->mtu = new_mtu;
+	netdev_update_features(ndev);
+
+	return 0;
+}
+
+/* For TSU_POSTn. Please refer to the manual about this (strange) bitfields */
+static u32 sh_eth_tsu_get_post_mask(int entry)
+{
+	return 0x0f << (28 - ((entry % 8) * 4));
+}
+
+static u32 sh_eth_tsu_get_post_bit(struct sh_eth_private *mdp, int entry)
+{
+	return (0x08 >> (mdp->port << 1)) << (28 - ((entry % 8) * 4));
+}
+
+static void sh_eth_tsu_enable_cam_entry_post(struct net_device *ndev,
+					     int entry)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int reg = TSU_POST1 + entry / 8;
+	u32 tmp;
+
+	tmp = sh_eth_tsu_read(mdp, reg);
+	sh_eth_tsu_write(mdp, tmp | sh_eth_tsu_get_post_bit(mdp, entry), reg);
+}
+
+static bool sh_eth_tsu_disable_cam_entry_post(struct net_device *ndev,
+					      int entry)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int reg = TSU_POST1 + entry / 8;
+	u32 post_mask, ref_mask, tmp;
+
+	post_mask = sh_eth_tsu_get_post_mask(entry);
+	ref_mask = sh_eth_tsu_get_post_bit(mdp, entry) & ~post_mask;
+
+	tmp = sh_eth_tsu_read(mdp, reg);
+	sh_eth_tsu_write(mdp, tmp & ~post_mask, reg);
+
+	/* If other port enables, the function returns "true" */
+	return tmp & ref_mask;
+}
+
+static int sh_eth_tsu_busy(struct net_device *ndev)
+{
+	int timeout = SH_ETH_TSU_TIMEOUT_MS * 100;
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	while ((sh_eth_tsu_read(mdp, TSU_ADSBSY) & TSU_ADSBSY_0)) {
+		udelay(10);
+		timeout--;
+		if (timeout <= 0) {
+			netdev_err(ndev, "%s: timeout\n", __func__);
+			return -ETIMEDOUT;
+		}
+	}
+
+	return 0;
+}
+
+static int sh_eth_tsu_write_entry(struct net_device *ndev, u16 offset,
+				  const u8 *addr)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	u32 val;
+
+	val = addr[0] << 24 | addr[1] << 16 | addr[2] << 8 | addr[3];
+	iowrite32(val, mdp->tsu_addr + offset);
+	if (sh_eth_tsu_busy(ndev) < 0)
+		return -EBUSY;
+
+	val = addr[4] << 8 | addr[5];
+	iowrite32(val, mdp->tsu_addr + offset + 4);
+	if (sh_eth_tsu_busy(ndev) < 0)
+		return -EBUSY;
+
+	return 0;
+}
+
+static void sh_eth_tsu_read_entry(struct net_device *ndev, u16 offset, u8 *addr)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	u32 val;
+
+	val = ioread32(mdp->tsu_addr + offset);
+	addr[0] = (val >> 24) & 0xff;
+	addr[1] = (val >> 16) & 0xff;
+	addr[2] = (val >> 8) & 0xff;
+	addr[3] = val & 0xff;
+	val = ioread32(mdp->tsu_addr + offset + 4);
+	addr[4] = (val >> 8) & 0xff;
+	addr[5] = val & 0xff;
+}
+
+
+static int sh_eth_tsu_find_entry(struct net_device *ndev, const u8 *addr)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	u16 reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0);
+	int i;
+	u8 c_addr[ETH_ALEN];
+
+	for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES; i++, reg_offset += 8) {
+		sh_eth_tsu_read_entry(ndev, reg_offset, c_addr);
+		if (ether_addr_equal(addr, c_addr))
+			return i;
+	}
+
+	return -ENOENT;
+}
+
+static int sh_eth_tsu_find_empty(struct net_device *ndev)
+{
+	u8 blank[ETH_ALEN];
+	int entry;
+
+	memset(blank, 0, sizeof(blank));
+	entry = sh_eth_tsu_find_entry(ndev, blank);
+	return (entry < 0) ? -ENOMEM : entry;
+}
+
+static int sh_eth_tsu_disable_cam_entry_table(struct net_device *ndev,
+					      int entry)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	u16 reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0);
+	int ret;
+	u8 blank[ETH_ALEN];
+
+	sh_eth_tsu_write(mdp, sh_eth_tsu_read(mdp, TSU_TEN) &
+			 ~(1 << (31 - entry)), TSU_TEN);
+
+	memset(blank, 0, sizeof(blank));
+	ret = sh_eth_tsu_write_entry(ndev, reg_offset + entry * 8, blank);
+	if (ret < 0)
+		return ret;
+	return 0;
+}
+
+static int sh_eth_tsu_add_entry(struct net_device *ndev, const u8 *addr)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	u16 reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0);
+	int i, ret;
+
+	if (!mdp->cd->tsu)
+		return 0;
+
+	i = sh_eth_tsu_find_entry(ndev, addr);
+	if (i < 0) {
+		/* No entry found, create one */
+		i = sh_eth_tsu_find_empty(ndev);
+		if (i < 0)
+			return -ENOMEM;
+		ret = sh_eth_tsu_write_entry(ndev, reg_offset + i * 8, addr);
+		if (ret < 0)
+			return ret;
+
+		/* Enable the entry */
+		sh_eth_tsu_write(mdp, sh_eth_tsu_read(mdp, TSU_TEN) |
+				 (1 << (31 - i)), TSU_TEN);
+	}
+
+	/* Entry found or created, enable POST */
+	sh_eth_tsu_enable_cam_entry_post(ndev, i);
+
+	return 0;
+}
+
+static int sh_eth_tsu_del_entry(struct net_device *ndev, const u8 *addr)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int i, ret;
+
+	if (!mdp->cd->tsu)
+		return 0;
+
+	i = sh_eth_tsu_find_entry(ndev, addr);
+	if (i) {
+		/* Entry found */
+		if (sh_eth_tsu_disable_cam_entry_post(ndev, i))
+			goto done;
+
+		/* Disable the entry if both ports was disabled */
+		ret = sh_eth_tsu_disable_cam_entry_table(ndev, i);
+		if (ret < 0)
+			return ret;
+	}
+done:
+	return 0;
+}
+
+static int sh_eth_tsu_purge_all(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int i, ret;
+
+	if (!mdp->cd->tsu)
+		return 0;
+
+	for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES; i++) {
+		if (sh_eth_tsu_disable_cam_entry_post(ndev, i))
+			continue;
+
+		/* Disable the entry if both ports was disabled */
+		ret = sh_eth_tsu_disable_cam_entry_table(ndev, i);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static void sh_eth_tsu_purge_mcast(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	u16 reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0);
+	u8 addr[ETH_ALEN];
+	int i;
+
+	if (!mdp->cd->tsu)
+		return;
+
+	for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES; i++, reg_offset += 8) {
+		sh_eth_tsu_read_entry(ndev, reg_offset, addr);
+		if (is_multicast_ether_addr(addr))
+			sh_eth_tsu_del_entry(ndev, addr);
+	}
+}
+
+/* Update promiscuous flag and multicast filter */
+static void sh_eth_set_rx_mode(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	u32 ecmr_bits;
+	int mcast_all = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&mdp->lock, flags);
+	/* Initial condition is MCT = 1, PRM = 0.
+	 * Depending on ndev->flags, set PRM or clear MCT
+	 */
+	ecmr_bits = sh_eth_read(ndev, ECMR) & ~ECMR_PRM;
+	if (mdp->cd->tsu)
+		ecmr_bits |= ECMR_MCT;
+
+	if (!(ndev->flags & IFF_MULTICAST)) {
+		sh_eth_tsu_purge_mcast(ndev);
+		mcast_all = 1;
+	}
+	if (ndev->flags & IFF_ALLMULTI) {
+		sh_eth_tsu_purge_mcast(ndev);
+		ecmr_bits &= ~ECMR_MCT;
+		mcast_all = 1;
+	}
+
+	if (ndev->flags & IFF_PROMISC) {
+		sh_eth_tsu_purge_all(ndev);
+		ecmr_bits = (ecmr_bits & ~ECMR_MCT) | ECMR_PRM;
+	} else if (mdp->cd->tsu) {
+		struct netdev_hw_addr *ha;
+		netdev_for_each_mc_addr(ha, ndev) {
+			if (mcast_all && is_multicast_ether_addr(ha->addr))
+				continue;
+
+			if (sh_eth_tsu_add_entry(ndev, ha->addr) < 0) {
+				if (!mcast_all) {
+					sh_eth_tsu_purge_mcast(ndev);
+					ecmr_bits &= ~ECMR_MCT;
+					mcast_all = 1;
+				}
+			}
+		}
+	}
+
+	/* update the ethernet mode */
+	sh_eth_write(ndev, ecmr_bits, ECMR);
+
+	spin_unlock_irqrestore(&mdp->lock, flags);
+}
+
+static void sh_eth_set_rx_csum(struct net_device *ndev, bool enable)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	unsigned long flags;
+
+	spin_lock_irqsave(&mdp->lock, flags);
+
+	/* Disable TX and RX */
+	sh_eth_rcv_snd_disable(ndev);
+
+	/* Modify RX Checksum setting */
+	sh_eth_modify(ndev, ECMR, ECMR_RCSC, enable ? ECMR_RCSC : 0);
+
+	/* Enable TX and RX */
+	sh_eth_rcv_snd_enable(ndev);
+
+	spin_unlock_irqrestore(&mdp->lock, flags);
+}
+
+static int sh_eth_set_features(struct net_device *ndev,
+			       netdev_features_t features)
+{
+	netdev_features_t changed = ndev->features ^ features;
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	if (changed & NETIF_F_RXCSUM && mdp->cd->rx_csum)
+		sh_eth_set_rx_csum(ndev, features & NETIF_F_RXCSUM);
+
+	ndev->features = features;
+
+	return 0;
+}
+
+static int sh_eth_get_vtag_index(struct sh_eth_private *mdp)
+{
+	if (!mdp->port)
+		return TSU_VTAG0;
+	else
+		return TSU_VTAG1;
+}
+
+static int sh_eth_vlan_rx_add_vid(struct net_device *ndev,
+				  __be16 proto, u16 vid)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int vtag_reg_index = sh_eth_get_vtag_index(mdp);
+
+	if (unlikely(!mdp->cd->tsu))
+		return -EPERM;
+
+	/* No filtering if vid = 0 */
+	if (!vid)
+		return 0;
+
+	mdp->vlan_num_ids++;
+
+	/* The controller has one VLAN tag HW filter. So, if the filter is
+	 * already enabled, the driver disables it and the filte
+	 */
+	if (mdp->vlan_num_ids > 1) {
+		/* disable VLAN filter */
+		sh_eth_tsu_write(mdp, 0, vtag_reg_index);
+		return 0;
+	}
+
+	sh_eth_tsu_write(mdp, TSU_VTAG_ENABLE | (vid & TSU_VTAG_VID_MASK),
+			 vtag_reg_index);
+
+	return 0;
+}
+
+static int sh_eth_vlan_rx_kill_vid(struct net_device *ndev,
+				   __be16 proto, u16 vid)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int vtag_reg_index = sh_eth_get_vtag_index(mdp);
+
+	if (unlikely(!mdp->cd->tsu))
+		return -EPERM;
+
+	/* No filtering if vid = 0 */
+	if (!vid)
+		return 0;
+
+	mdp->vlan_num_ids--;
+	sh_eth_tsu_write(mdp, 0, vtag_reg_index);
+
+	return 0;
+}
+
+/* SuperH's TSU register init function */
+static void sh_eth_tsu_init(struct sh_eth_private *mdp)
+{
+	if (!mdp->cd->dual_port) {
+		sh_eth_tsu_write(mdp, 0, TSU_TEN); /* Disable all CAM entry */
+		sh_eth_tsu_write(mdp, TSU_FWSLC_POSTENU | TSU_FWSLC_POSTENL,
+				 TSU_FWSLC);	/* Enable POST registers */
+		return;
+	}
+
+	sh_eth_tsu_write(mdp, 0, TSU_FWEN0);	/* Disable forward(0->1) */
+	sh_eth_tsu_write(mdp, 0, TSU_FWEN1);	/* Disable forward(1->0) */
+	sh_eth_tsu_write(mdp, 0, TSU_FCM);	/* forward fifo 3k-3k */
+	sh_eth_tsu_write(mdp, 0xc, TSU_BSYSL0);
+	sh_eth_tsu_write(mdp, 0xc, TSU_BSYSL1);
+	sh_eth_tsu_write(mdp, 0, TSU_PRISL0);
+	sh_eth_tsu_write(mdp, 0, TSU_PRISL1);
+	sh_eth_tsu_write(mdp, 0, TSU_FWSL0);
+	sh_eth_tsu_write(mdp, 0, TSU_FWSL1);
+	sh_eth_tsu_write(mdp, TSU_FWSLC_POSTENU | TSU_FWSLC_POSTENL, TSU_FWSLC);
+	sh_eth_tsu_write(mdp, 0, TSU_QTAGM0);	/* Disable QTAG(0->1) */
+	sh_eth_tsu_write(mdp, 0, TSU_QTAGM1);	/* Disable QTAG(1->0) */
+	sh_eth_tsu_write(mdp, 0, TSU_FWSR);	/* all interrupt status clear */
+	sh_eth_tsu_write(mdp, 0, TSU_FWINMK);	/* Disable all interrupt */
+	sh_eth_tsu_write(mdp, 0, TSU_TEN);	/* Disable all CAM entry */
+	sh_eth_tsu_write(mdp, 0, TSU_POST1);	/* Disable CAM entry [ 0- 7] */
+	sh_eth_tsu_write(mdp, 0, TSU_POST2);	/* Disable CAM entry [ 8-15] */
+	sh_eth_tsu_write(mdp, 0, TSU_POST3);	/* Disable CAM entry [16-23] */
+	sh_eth_tsu_write(mdp, 0, TSU_POST4);	/* Disable CAM entry [24-31] */
+}
+
+/* MDIO bus release function */
+static int sh_mdio_release(struct sh_eth_private *mdp)
+{
+	/* unregister mdio bus */
+	mdiobus_unregister(mdp->mii_bus);
+
+	/* free bitbang info */
+	free_mdio_bitbang(mdp->mii_bus);
+
+	return 0;
+}
+
+static int sh_mdiobb_read(struct mii_bus *bus, int phy, int reg)
+{
+	int res;
+
+	pm_runtime_get_sync(bus->parent);
+	res = mdiobb_read(bus, phy, reg);
+	pm_runtime_put(bus->parent);
+
+	return res;
+}
+
+static int sh_mdiobb_write(struct mii_bus *bus, int phy, int reg, u16 val)
+{
+	int res;
+
+	pm_runtime_get_sync(bus->parent);
+	res = mdiobb_write(bus, phy, reg, val);
+	pm_runtime_put(bus->parent);
+
+	return res;
+}
+
+/* MDIO bus init function */
+static int sh_mdio_init(struct sh_eth_private *mdp,
+			struct sh_eth_plat_data *pd)
+{
+	int ret;
+	struct bb_info *bitbang;
+	struct platform_device *pdev = mdp->pdev;
+	struct device *dev = &mdp->pdev->dev;
+	struct phy_device *phydev;
+	struct device_node *pn;
+
+	/* create bit control struct for PHY */
+	bitbang = devm_kzalloc(dev, sizeof(struct bb_info), GFP_KERNEL);
+	if (!bitbang)
+		return -ENOMEM;
+
+	/* bitbang init */
+	bitbang->addr = mdp->addr + mdp->reg_offset[PIR];
+	bitbang->set_gate = pd->set_mdio_gate;
+	bitbang->ctrl.ops = &bb_ops;
+
+	/* MII controller setting */
+	mdp->mii_bus = alloc_mdio_bitbang(&bitbang->ctrl);
+	if (!mdp->mii_bus)
+		return -ENOMEM;
+
+	/* Wrap accessors with Runtime PM-aware ops */
+	mdp->mii_bus->read = sh_mdiobb_read;
+	mdp->mii_bus->write = sh_mdiobb_write;
+
+	/* Hook up MII support for ethtool */
+	mdp->mii_bus->name = "sh_mii";
+	mdp->mii_bus->parent = dev;
+	snprintf(mdp->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
+		 pdev->name, pdev->id);
+
+	/* register MDIO bus */
+	if (pd->phy_irq > 0)
+		mdp->mii_bus->irq[pd->phy] = pd->phy_irq;
+
+	ret = of_mdiobus_register(mdp->mii_bus, dev->of_node);
+	if (ret)
+		goto out_free_bus;
+
+	pn = of_parse_phandle(dev->of_node, "phy-handle", 0);
+	phydev = of_phy_find_device(pn);
+	if (phydev) {
+		phydev->mac_managed_pm = true;
+		put_device(&phydev->mdio.dev);
+	}
+	of_node_put(pn);
+
+	return 0;
+
+out_free_bus:
+	free_mdio_bitbang(mdp->mii_bus);
+	return ret;
+}
+
+static const u16 *sh_eth_get_register_offset(int register_type)
+{
+	const u16 *reg_offset = NULL;
+
+	switch (register_type) {
+	case SH_ETH_REG_GIGABIT:
+		reg_offset = sh_eth_offset_gigabit;
+		break;
+	case SH_ETH_REG_FAST_RCAR:
+		reg_offset = sh_eth_offset_fast_rcar;
+		break;
+	case SH_ETH_REG_FAST_SH4:
+		reg_offset = sh_eth_offset_fast_sh4;
+		break;
+	case SH_ETH_REG_FAST_SH3_SH2:
+		reg_offset = sh_eth_offset_fast_sh3_sh2;
+		break;
+	}
+
+	return reg_offset;
+}
+
+static const struct net_device_ops sh_eth_netdev_ops = {
+	.ndo_open		= sh_eth_open,
+	.ndo_stop		= sh_eth_close,
+	.ndo_start_xmit		= sh_eth_start_xmit,
+	.ndo_get_stats		= sh_eth_get_stats,
+	.ndo_set_rx_mode	= sh_eth_set_rx_mode,
+	.ndo_tx_timeout		= sh_eth_tx_timeout,
+	.ndo_eth_ioctl		= phy_do_ioctl_running,
+	.ndo_change_mtu		= sh_eth_change_mtu,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_set_features	= sh_eth_set_features,
+};
+
+static const struct net_device_ops sh_eth_netdev_ops_tsu = {
+	.ndo_open		= sh_eth_open,
+	.ndo_stop		= sh_eth_close,
+	.ndo_start_xmit		= sh_eth_start_xmit,
+	.ndo_get_stats		= sh_eth_get_stats,
+	.ndo_set_rx_mode	= sh_eth_set_rx_mode,
+	.ndo_vlan_rx_add_vid	= sh_eth_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid	= sh_eth_vlan_rx_kill_vid,
+	.ndo_tx_timeout		= sh_eth_tx_timeout,
+	.ndo_eth_ioctl		= phy_do_ioctl_running,
+	.ndo_change_mtu		= sh_eth_change_mtu,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_set_features	= sh_eth_set_features,
+};
+
+#ifdef CONFIG_OF
+static struct sh_eth_plat_data *sh_eth_parse_dt(struct device *dev)
+{
+	struct device_node *np = dev->of_node;
+	struct sh_eth_plat_data *pdata;
+	phy_interface_t interface;
+	int ret;
+
+	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return NULL;
+
+	ret = of_get_phy_mode(np, &interface);
+	if (ret)
+		return NULL;
+	pdata->phy_interface = interface;
+
+	of_get_mac_address(np, pdata->mac_addr);
+
+	pdata->no_ether_link =
+		of_property_read_bool(np, "renesas,no-ether-link");
+	pdata->ether_link_active_low =
+		of_property_read_bool(np, "renesas,ether-link-active-low");
+
+	return pdata;
+}
+
+static const struct of_device_id sh_eth_match_table[] = {
+	{ .compatible = "renesas,gether-r8a7740", .data = &r8a7740_data },
+	{ .compatible = "renesas,ether-r8a7743", .data = &rcar_gen2_data },
+	{ .compatible = "renesas,ether-r8a7745", .data = &rcar_gen2_data },
+	{ .compatible = "renesas,ether-r8a7778", .data = &rcar_gen1_data },
+	{ .compatible = "renesas,ether-r8a7779", .data = &rcar_gen1_data },
+	{ .compatible = "renesas,ether-r8a7790", .data = &rcar_gen2_data },
+	{ .compatible = "renesas,ether-r8a7791", .data = &rcar_gen2_data },
+	{ .compatible = "renesas,ether-r8a7793", .data = &rcar_gen2_data },
+	{ .compatible = "renesas,ether-r8a7794", .data = &rcar_gen2_data },
+	{ .compatible = "renesas,gether-r8a77980", .data = &r8a77980_data },
+	{ .compatible = "renesas,ether-r7s72100", .data = &r7s72100_data },
+	{ .compatible = "renesas,ether-r7s9210", .data = &r7s9210_data },
+	{ .compatible = "renesas,rcar-gen1-ether", .data = &rcar_gen1_data },
+	{ .compatible = "renesas,rcar-gen2-ether", .data = &rcar_gen2_data },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, sh_eth_match_table);
+#else
+static inline struct sh_eth_plat_data *sh_eth_parse_dt(struct device *dev)
+{
+	return NULL;
+}
+#endif
+
+static int sh_eth_drv_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct sh_eth_plat_data *pd = dev_get_platdata(&pdev->dev);
+	const struct platform_device_id *id = platform_get_device_id(pdev);
+	struct sh_eth_private *mdp;
+	struct net_device *ndev;
+	int ret;
+
+	ndev = alloc_etherdev(sizeof(struct sh_eth_private));
+	if (!ndev)
+		return -ENOMEM;
+
+	pm_runtime_enable(&pdev->dev);
+	pm_runtime_get_sync(&pdev->dev);
+
+	ret = platform_get_irq(pdev, 0);
+	if (ret < 0)
+		goto out_release;
+	ndev->irq = ret;
+
+	SET_NETDEV_DEV(ndev, &pdev->dev);
+
+	mdp = netdev_priv(ndev);
+	mdp->num_tx_ring = TX_RING_SIZE;
+	mdp->num_rx_ring = RX_RING_SIZE;
+	mdp->addr = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(mdp->addr)) {
+		ret = PTR_ERR(mdp->addr);
+		goto out_release;
+	}
+
+	ndev->base_addr = res->start;
+
+	spin_lock_init(&mdp->lock);
+	mdp->pdev = pdev;
+
+	if (pdev->dev.of_node)
+		pd = sh_eth_parse_dt(&pdev->dev);
+	if (!pd) {
+		dev_err(&pdev->dev, "no platform data\n");
+		ret = -EINVAL;
+		goto out_release;
+	}
+
+	/* get PHY ID */
+	mdp->phy_id = pd->phy;
+	mdp->phy_interface = pd->phy_interface;
+	mdp->no_ether_link = pd->no_ether_link;
+	mdp->ether_link_active_low = pd->ether_link_active_low;
+
+	/* set cpu data */
+	if (id)
+		mdp->cd = (struct sh_eth_cpu_data *)id->driver_data;
+	else
+		mdp->cd = (struct sh_eth_cpu_data *)of_device_get_match_data(&pdev->dev);
+
+	mdp->reg_offset = sh_eth_get_register_offset(mdp->cd->register_type);
+	if (!mdp->reg_offset) {
+		dev_err(&pdev->dev, "Unknown register type (%d)\n",
+			mdp->cd->register_type);
+		ret = -EINVAL;
+		goto out_release;
+	}
+	sh_eth_set_default_cpu_data(mdp->cd);
+
+	/* User's manual states max MTU should be 2048 but due to the
+	 * alignment calculations in sh_eth_ring_init() the practical
+	 * MTU is a bit less. Maybe this can be optimized some more.
+	 */
+	ndev->max_mtu = 2000 - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN);
+	ndev->min_mtu = ETH_MIN_MTU;
+
+	if (mdp->cd->rx_csum) {
+		ndev->features = NETIF_F_RXCSUM;
+		ndev->hw_features = NETIF_F_RXCSUM;
+	}
+
+	/* set function */
+	if (mdp->cd->tsu)
+		ndev->netdev_ops = &sh_eth_netdev_ops_tsu;
+	else
+		ndev->netdev_ops = &sh_eth_netdev_ops;
+	ndev->ethtool_ops = &sh_eth_ethtool_ops;
+	ndev->watchdog_timeo = TX_TIMEOUT;
+
+	/* debug message level */
+	mdp->msg_enable = SH_ETH_DEF_MSG_ENABLE;
+
+	/* read and set MAC address */
+	read_mac_address(ndev, pd->mac_addr);
+	if (!is_valid_ether_addr(ndev->dev_addr)) {
+		dev_warn(&pdev->dev,
+			 "no valid MAC address supplied, using a random one.\n");
+		eth_hw_addr_random(ndev);
+	}
+
+	if (mdp->cd->tsu) {
+		int port = pdev->id < 0 ? 0 : pdev->id % 2;
+		struct resource *rtsu;
+
+		rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+		if (!rtsu) {
+			dev_err(&pdev->dev, "no TSU resource\n");
+			ret = -ENODEV;
+			goto out_release;
+		}
+		/* We can only request the  TSU region  for the first port
+		 * of the two  sharing this TSU for the probe to succeed...
+		 */
+		if (port == 0 &&
+		    !devm_request_mem_region(&pdev->dev, rtsu->start,
+					     resource_size(rtsu),
+					     dev_name(&pdev->dev))) {
+			dev_err(&pdev->dev, "can't request TSU resource.\n");
+			ret = -EBUSY;
+			goto out_release;
+		}
+		/* ioremap the TSU registers */
+		mdp->tsu_addr = devm_ioremap(&pdev->dev, rtsu->start,
+					     resource_size(rtsu));
+		if (!mdp->tsu_addr) {
+			dev_err(&pdev->dev, "TSU region ioremap() failed.\n");
+			ret = -ENOMEM;
+			goto out_release;
+		}
+		mdp->port = port;
+		ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
+
+		/* Need to init only the first port of the two sharing a TSU */
+		if (port == 0) {
+			if (mdp->cd->chip_reset)
+				mdp->cd->chip_reset(ndev);
+
+			/* TSU init (Init only)*/
+			sh_eth_tsu_init(mdp);
+		}
+	}
+
+	if (mdp->cd->rmiimode)
+		sh_eth_write(ndev, 0x1, RMIIMODE);
+
+	/* MDIO bus init */
+	ret = sh_mdio_init(mdp, pd);
+	if (ret) {
+		dev_err_probe(&pdev->dev, ret, "MDIO init failed\n");
+		goto out_release;
+	}
+
+	netif_napi_add(ndev, &mdp->napi, sh_eth_poll);
+
+	/* network device register */
+	ret = register_netdev(ndev);
+	if (ret)
+		goto out_napi_del;
+
+	if (mdp->cd->magic)
+		device_set_wakeup_capable(&pdev->dev, 1);
+
+	/* print device information */
+	netdev_info(ndev, "Base address at 0x%x, %pM, IRQ %d.\n",
+		    (u32)ndev->base_addr, ndev->dev_addr, ndev->irq);
+
+	pm_runtime_put(&pdev->dev);
+	platform_set_drvdata(pdev, ndev);
+
+	return ret;
+
+out_napi_del:
+	netif_napi_del(&mdp->napi);
+	sh_mdio_release(mdp);
+
+out_release:
+	/* net_dev free */
+	free_netdev(ndev);
+
+	pm_runtime_put(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+	return ret;
+}
+
+static int sh_eth_drv_remove(struct platform_device *pdev)
+{
+	struct net_device *ndev = platform_get_drvdata(pdev);
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	unregister_netdev(ndev);
+	netif_napi_del(&mdp->napi);
+	sh_mdio_release(mdp);
+	pm_runtime_disable(&pdev->dev);
+	free_netdev(ndev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
+static int sh_eth_wol_setup(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+
+	/* Only allow ECI interrupts */
+	synchronize_irq(ndev->irq);
+	napi_disable(&mdp->napi);
+	sh_eth_write(ndev, EESIPR_ECIIP, EESIPR);
+
+	/* Enable MagicPacket */
+	sh_eth_modify(ndev, ECMR, ECMR_MPDE, ECMR_MPDE);
+
+	return enable_irq_wake(ndev->irq);
+}
+
+static int sh_eth_wol_restore(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int ret;
+
+	napi_enable(&mdp->napi);
+
+	/* Disable MagicPacket */
+	sh_eth_modify(ndev, ECMR, ECMR_MPDE, 0);
+
+	/* The device needs to be reset to restore MagicPacket logic
+	 * for next wakeup. If we close and open the device it will
+	 * both be reset and all registers restored. This is what
+	 * happens during suspend and resume without WoL enabled.
+	 */
+	sh_eth_close(ndev);
+	ret = sh_eth_open(ndev);
+	if (ret < 0)
+		return ret;
+
+	return disable_irq_wake(ndev->irq);
+}
+
+static int sh_eth_suspend(struct device *dev)
+{
+	struct net_device *ndev = dev_get_drvdata(dev);
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int ret;
+
+	if (!netif_running(ndev))
+		return 0;
+
+	netif_device_detach(ndev);
+
+	if (mdp->wol_enabled)
+		ret = sh_eth_wol_setup(ndev);
+	else
+		ret = sh_eth_close(ndev);
+
+	return ret;
+}
+
+static int sh_eth_resume(struct device *dev)
+{
+	struct net_device *ndev = dev_get_drvdata(dev);
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int ret;
+
+	if (!netif_running(ndev))
+		return 0;
+
+	if (mdp->wol_enabled)
+		ret = sh_eth_wol_restore(ndev);
+	else
+		ret = sh_eth_open(ndev);
+
+	if (ret < 0)
+		return ret;
+
+	netif_device_attach(ndev);
+
+	return ret;
+}
+#endif
+
+static int sh_eth_runtime_nop(struct device *dev)
+{
+	/* Runtime PM callback shared between ->runtime_suspend()
+	 * and ->runtime_resume(). Simply returns success.
+	 *
+	 * This driver re-initializes all registers after
+	 * pm_runtime_get_sync() anyway so there is no need
+	 * to save and restore registers here.
+	 */
+	return 0;
+}
+
+static const struct dev_pm_ops sh_eth_dev_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(sh_eth_suspend, sh_eth_resume)
+	SET_RUNTIME_PM_OPS(sh_eth_runtime_nop, sh_eth_runtime_nop, NULL)
+};
+#define SH_ETH_PM_OPS (&sh_eth_dev_pm_ops)
+#else
+#define SH_ETH_PM_OPS NULL
+#endif
+
+static const struct platform_device_id sh_eth_id_table[] = {
+	{ "sh7619-ether", (kernel_ulong_t)&sh7619_data },
+	{ "sh771x-ether", (kernel_ulong_t)&sh771x_data },
+	{ "sh7724-ether", (kernel_ulong_t)&sh7724_data },
+	{ "sh7734-gether", (kernel_ulong_t)&sh7734_data },
+	{ "sh7757-ether", (kernel_ulong_t)&sh7757_data },
+	{ "sh7757-gether", (kernel_ulong_t)&sh7757_data_giga },
+	{ "sh7763-gether", (kernel_ulong_t)&sh7763_data },
+	{ }
+};
+MODULE_DEVICE_TABLE(platform, sh_eth_id_table);
+
+static struct platform_driver sh_eth_driver = {
+	.probe = sh_eth_drv_probe,
+	.remove = sh_eth_drv_remove,
+	.id_table = sh_eth_id_table,
+	.driver = {
+		   .name = CARDNAME,
+		   .pm = SH_ETH_PM_OPS,
+		   .of_match_table = of_match_ptr(sh_eth_match_table),
+	},
+};
+
+module_platform_driver(sh_eth_driver);
+
+MODULE_AUTHOR("Nobuhiro Iwamatsu, Yoshihiro Shimoda");
+MODULE_DESCRIPTION("Renesas SuperH Ethernet driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
new file mode 100644
index 000000000..a5c07c6ff
--- /dev/null
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -0,0 +1,567 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*  SuperH Ethernet device driver
+ *
+ *  Copyright (C) 2006-2012 Nobuhiro Iwamatsu
+ *  Copyright (C) 2008-2012 Renesas Solutions Corp.
+ */
+
+#ifndef __SH_ETH_H__
+#define __SH_ETH_H__
+
+#define CARDNAME	"sh-eth"
+#define TX_TIMEOUT	(5*HZ)
+#define TX_RING_SIZE	64	/* Tx ring size */
+#define RX_RING_SIZE	64	/* Rx ring size */
+#define TX_RING_MIN	64
+#define RX_RING_MIN	64
+#define TX_RING_MAX	1024
+#define RX_RING_MAX	1024
+#define PKT_BUF_SZ	1538
+#define SH_ETH_TSU_TIMEOUT_MS	500
+#define SH_ETH_TSU_CAM_ENTRIES	32
+
+enum {
+	/* IMPORTANT: To keep ethtool register dump working, add new
+	 * register names immediately before SH_ETH_MAX_REGISTER_OFFSET.
+	 */
+
+	/* E-DMAC registers */
+	EDSR = 0,
+	EDMR,
+	EDTRR,
+	EDRRR,
+	EESR,
+	EESIPR,
+	TDLAR,
+	TDFAR,
+	TDFXR,
+	TDFFR,
+	RDLAR,
+	RDFAR,
+	RDFXR,
+	RDFFR,
+	TRSCER,
+	RMFCR,
+	TFTR,
+	FDR,
+	RMCR,
+	EDOCR,
+	TFUCR,
+	RFOCR,
+	RMIIMODE,
+	FCFTR,
+	RPADIR,
+	TRIMD,
+	RBWAR,
+	TBRAR,
+
+	/* Ether registers */
+	ECMR,
+	ECSR,
+	ECSIPR,
+	PIR,
+	PSR,
+	RDMLR,
+	PIPR,
+	RFLR,
+	IPGR,
+	APR,
+	MPR,
+	PFTCR,
+	PFRCR,
+	RFCR,
+	RFCF,
+	TPAUSER,
+	TPAUSECR,
+	BCFR,
+	BCFRR,
+	GECMR,
+	BCULR,
+	MAHR,
+	MALR,
+	TROCR,
+	CDCR,
+	LCCR,
+	CNDCR,
+	CEFCR,
+	FRECR,
+	TSFRCR,
+	TLFRCR,
+	CERCR,
+	CEECR,
+	MAFCR,
+	RTRATE,
+	CSMR,
+	RMII_MII,
+
+	/* TSU Absolute address */
+	ARSTR,
+	TSU_CTRST,
+	TSU_FWEN0,
+	TSU_FWEN1,
+	TSU_FCM,
+	TSU_BSYSL0,
+	TSU_BSYSL1,
+	TSU_PRISL0,
+	TSU_PRISL1,
+	TSU_FWSL0,
+	TSU_FWSL1,
+	TSU_FWSLC,
+	TSU_QTAG0,			/* Same as TSU_QTAGM0 */
+	TSU_QTAG1,			/* Same as TSU_QTAGM1 */
+	TSU_QTAGM0,
+	TSU_QTAGM1,
+	TSU_FWSR,
+	TSU_FWINMK,
+	TSU_ADQT0,
+	TSU_ADQT1,
+	TSU_VTAG0,
+	TSU_VTAG1,
+	TSU_ADSBSY,
+	TSU_TEN,
+	TSU_POST1,
+	TSU_POST2,
+	TSU_POST3,
+	TSU_POST4,
+	TSU_ADRH0,
+	/* TSU_ADR{H,L}{0..31} are assumed to be contiguous */
+
+	TXNLCR0,
+	TXALCR0,
+	RXNLCR0,
+	RXALCR0,
+	FWNLCR0,
+	FWALCR0,
+	TXNLCR1,
+	TXALCR1,
+	RXNLCR1,
+	RXALCR1,
+	FWNLCR1,
+	FWALCR1,
+
+	/* This value must be written at last. */
+	SH_ETH_MAX_REGISTER_OFFSET,
+};
+
+enum {
+	SH_ETH_REG_GIGABIT,
+	SH_ETH_REG_FAST_RCAR,
+	SH_ETH_REG_FAST_SH4,
+	SH_ETH_REG_FAST_SH3_SH2
+};
+
+/* Driver's parameters */
+#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_RENESAS)
+#define SH_ETH_RX_ALIGN		32
+#else
+#define SH_ETH_RX_ALIGN		2
+#endif
+
+/* Register's bits
+ */
+/* EDSR : sh7734, sh7757, sh7763, r8a7740, and r7s72100 only */
+enum EDSR_BIT {
+	EDSR_ENT = 0x01, EDSR_ENR = 0x02,
+};
+#define EDSR_ENALL (EDSR_ENT|EDSR_ENR)
+
+/* GECMR : sh7734, sh7763 and r8a7740 only */
+enum GECMR_BIT {
+	GECMR_10 = 0x0, GECMR_100 = 0x04, GECMR_1000 = 0x01,
+};
+
+/* EDMR */
+enum EDMR_BIT {
+	EDMR_NBST = 0x80,
+	EDMR_EL = 0x40, /* Litte endian */
+	EDMR_DL1 = 0x20, EDMR_DL0 = 0x10,
+	EDMR_SRST_GETHER = 0x03,
+	EDMR_SRST_ETHER = 0x01,
+};
+
+/* EDTRR */
+enum EDTRR_BIT {
+	EDTRR_TRNS_GETHER = 0x03,
+	EDTRR_TRNS_ETHER = 0x01,
+};
+
+/* EDRRR */
+enum EDRRR_BIT {
+	EDRRR_R = 0x01,
+};
+
+/* TPAUSER */
+enum TPAUSER_BIT {
+	TPAUSER_TPAUSE = 0x0000ffff,
+	TPAUSER_UNLIMITED = 0,
+};
+
+/* BCFR */
+enum BCFR_BIT {
+	BCFR_RPAUSE = 0x0000ffff,
+	BCFR_UNLIMITED = 0,
+};
+
+/* PIR */
+enum PIR_BIT {
+	PIR_MDI = 0x08, PIR_MDO = 0x04, PIR_MMD = 0x02, PIR_MDC = 0x01,
+};
+
+/* PSR */
+enum PSR_BIT { PSR_LMON = 0x01, };
+
+/* EESR */
+enum EESR_BIT {
+	EESR_TWB1	= 0x80000000,
+	EESR_TWB	= 0x40000000,	/* same as TWB0 */
+	EESR_TC1	= 0x20000000,
+	EESR_TUC	= 0x10000000,
+	EESR_ROC	= 0x08000000,
+	EESR_TABT	= 0x04000000,
+	EESR_RABT	= 0x02000000,
+	EESR_RFRMER	= 0x01000000,	/* same as RFCOF */
+	EESR_ADE	= 0x00800000,
+	EESR_ECI	= 0x00400000,
+	EESR_FTC	= 0x00200000,	/* same as TC or TC0 */
+	EESR_TDE	= 0x00100000,
+	EESR_TFE	= 0x00080000,	/* same as TFUF */
+	EESR_FRC	= 0x00040000,	/* same as FR */
+	EESR_RDE	= 0x00020000,
+	EESR_RFE	= 0x00010000,
+	EESR_CND	= 0x00000800,
+	EESR_DLC	= 0x00000400,
+	EESR_CD		= 0x00000200,
+	EESR_TRO	= 0x00000100,
+	EESR_RMAF	= 0x00000080,
+	EESR_CEEF	= 0x00000040,
+	EESR_CELF	= 0x00000020,
+	EESR_RRF	= 0x00000010,
+	EESR_RTLF	= 0x00000008,
+	EESR_RTSF	= 0x00000004,
+	EESR_PRE	= 0x00000002,
+	EESR_CERF	= 0x00000001,
+};
+
+#define EESR_RX_CHECK		(EESR_FRC  | /* Frame recv */		\
+				 EESR_RMAF | /* Multicast address recv */ \
+				 EESR_RRF  | /* Bit frame recv */	\
+				 EESR_RTLF | /* Long frame recv */	\
+				 EESR_RTSF | /* Short frame recv */	\
+				 EESR_PRE  | /* PHY-LSI recv error */	\
+				 EESR_CERF)  /* Recv frame CRC error */
+
+#define DEFAULT_TX_CHECK	(EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | \
+				 EESR_TRO)
+#define DEFAULT_EESR_ERR_CHECK	(EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | \
+				 EESR_RDE | EESR_RFRMER | EESR_ADE | \
+				 EESR_TFE | EESR_TDE)
+
+/* EESIPR */
+enum EESIPR_BIT {
+	EESIPR_TWB1IP	= 0x80000000,
+	EESIPR_TWBIP	= 0x40000000,	/* same as TWB0IP */
+	EESIPR_TC1IP	= 0x20000000,
+	EESIPR_TUCIP	= 0x10000000,
+	EESIPR_ROCIP	= 0x08000000,
+	EESIPR_TABTIP	= 0x04000000,
+	EESIPR_RABTIP	= 0x02000000,
+	EESIPR_RFCOFIP	= 0x01000000,
+	EESIPR_ADEIP	= 0x00800000,
+	EESIPR_ECIIP	= 0x00400000,
+	EESIPR_FTCIP	= 0x00200000,	/* same as TC0IP */
+	EESIPR_TDEIP	= 0x00100000,
+	EESIPR_TFUFIP	= 0x00080000,
+	EESIPR_FRIP	= 0x00040000,
+	EESIPR_RDEIP	= 0x00020000,
+	EESIPR_RFOFIP	= 0x00010000,
+	EESIPR_CNDIP	= 0x00000800,
+	EESIPR_DLCIP	= 0x00000400,
+	EESIPR_CDIP	= 0x00000200,
+	EESIPR_TROIP	= 0x00000100,
+	EESIPR_RMAFIP	= 0x00000080,
+	EESIPR_CEEFIP	= 0x00000040,
+	EESIPR_CELFIP	= 0x00000020,
+	EESIPR_RRFIP	= 0x00000010,
+	EESIPR_RTLFIP	= 0x00000008,
+	EESIPR_RTSFIP	= 0x00000004,
+	EESIPR_PREIP	= 0x00000002,
+	EESIPR_CERFIP	= 0x00000001,
+};
+
+/* FCFTR */
+enum FCFTR_BIT {
+	FCFTR_RFF2 = 0x00040000, FCFTR_RFF1 = 0x00020000,
+	FCFTR_RFF0 = 0x00010000, FCFTR_RFD2 = 0x00000004,
+	FCFTR_RFD1 = 0x00000002, FCFTR_RFD0 = 0x00000001,
+};
+#define DEFAULT_FIFO_F_D_RFF	(FCFTR_RFF2 | FCFTR_RFF1 | FCFTR_RFF0)
+#define DEFAULT_FIFO_F_D_RFD	(FCFTR_RFD2 | FCFTR_RFD1 | FCFTR_RFD0)
+
+/* RMCR */
+enum RMCR_BIT {
+	RMCR_RNC = 0x00000001,
+};
+
+/* ECMR */
+enum ECMR_BIT {
+	ECMR_TRCCM = 0x04000000, ECMR_RCSC = 0x00800000,
+	ECMR_DPAD = 0x00200000, ECMR_RZPF = 0x00100000,
+	ECMR_ZPF = 0x00080000, ECMR_PFR = 0x00040000, ECMR_RXF = 0x00020000,
+	ECMR_TXF = 0x00010000, ECMR_MCT = 0x00002000, ECMR_PRCEF = 0x00001000,
+	ECMR_MPDE = 0x00000200, ECMR_RE = 0x00000040, ECMR_TE = 0x00000020,
+	ECMR_RTM = 0x00000010, ECMR_ILB = 0x00000008, ECMR_ELB = 0x00000004,
+	ECMR_DM = 0x00000002, ECMR_PRM = 0x00000001,
+};
+
+/* ECSR */
+enum ECSR_BIT {
+	ECSR_BRCRX = 0x20, ECSR_PSRTO = 0x10,
+	ECSR_LCHNG = 0x04,
+	ECSR_MPD = 0x02, ECSR_ICD = 0x01,
+};
+
+#define DEFAULT_ECSR_INIT	(ECSR_BRCRX | ECSR_PSRTO | ECSR_LCHNG | \
+				 ECSR_ICD | ECSIPR_MPDIP)
+
+/* ECSIPR */
+enum ECSIPR_BIT {
+	ECSIPR_BRCRXIP = 0x20, ECSIPR_PSRTOIP = 0x10,
+	ECSIPR_LCHNGIP = 0x04,
+	ECSIPR_MPDIP = 0x02, ECSIPR_ICDIP = 0x01,
+};
+
+#define DEFAULT_ECSIPR_INIT	(ECSIPR_BRCRXIP | ECSIPR_PSRTOIP | \
+				 ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP)
+
+/* APR */
+enum APR_BIT {
+	APR_AP = 0x0000ffff,
+};
+
+/* MPR */
+enum MPR_BIT {
+	MPR_MP = 0x0000ffff,
+};
+
+/* TRSCER */
+enum TRSCER_BIT {
+	TRSCER_CNDCE	= 0x00000800,
+	TRSCER_DLCCE	= 0x00000400,
+	TRSCER_CDCE	= 0x00000200,
+	TRSCER_TROCE	= 0x00000100,
+	TRSCER_RMAFCE	= 0x00000080,
+	TRSCER_RRFCE	= 0x00000010,
+	TRSCER_RTLFCE	= 0x00000008,
+	TRSCER_RTSFCE	= 0x00000004,
+	TRSCER_PRECE	= 0x00000002,
+	TRSCER_CERFCE	= 0x00000001,
+};
+
+#define DEFAULT_TRSCER_ERR_MASK (TRSCER_RMAFCE | TRSCER_RRFCE | TRSCER_CDCE)
+
+/* RPADIR */
+enum RPADIR_BIT {
+	RPADIR_PADS = 0x1f0000, RPADIR_PADR = 0xffff,
+};
+
+/* FDR */
+#define DEFAULT_FDR_INIT	0x00000707
+
+/* ARSTR */
+enum ARSTR_BIT { ARSTR_ARST = 0x00000001, };
+
+/* TSU_FWEN0 */
+enum TSU_FWEN0_BIT {
+	TSU_FWEN0_0 = 0x00000001,
+};
+
+/* TSU_ADSBSY */
+enum TSU_ADSBSY_BIT {
+	TSU_ADSBSY_0 = 0x00000001,
+};
+
+/* TSU_TEN */
+enum TSU_TEN_BIT {
+	TSU_TEN_0 = 0x80000000,
+};
+
+/* TSU_FWSL0 */
+enum TSU_FWSL0_BIT {
+	TSU_FWSL0_FW50 = 0x1000, TSU_FWSL0_FW40 = 0x0800,
+	TSU_FWSL0_FW30 = 0x0400, TSU_FWSL0_FW20 = 0x0200,
+	TSU_FWSL0_FW10 = 0x0100, TSU_FWSL0_RMSA0 = 0x0010,
+};
+
+/* TSU_FWSLC */
+enum TSU_FWSLC_BIT {
+	TSU_FWSLC_POSTENU = 0x2000, TSU_FWSLC_POSTENL = 0x1000,
+	TSU_FWSLC_CAMSEL03 = 0x0080, TSU_FWSLC_CAMSEL02 = 0x0040,
+	TSU_FWSLC_CAMSEL01 = 0x0020, TSU_FWSLC_CAMSEL00 = 0x0010,
+	TSU_FWSLC_CAMSEL13 = 0x0008, TSU_FWSLC_CAMSEL12 = 0x0004,
+	TSU_FWSLC_CAMSEL11 = 0x0002, TSU_FWSLC_CAMSEL10 = 0x0001,
+};
+
+/* TSU_VTAGn */
+#define TSU_VTAG_ENABLE		0x80000000
+#define TSU_VTAG_VID_MASK	0x00000fff
+
+/* The sh ether Tx buffer descriptors.
+ * This structure should be 20 bytes.
+ */
+struct sh_eth_txdesc {
+	u32 status;		/* TD0 */
+	u32 len;		/* TD1 */
+	u32 addr;		/* TD2 */
+	u32 pad0;		/* padding data */
+} __aligned(2) __packed;
+
+/* Transmit descriptor 0 bits */
+enum TD_STS_BIT {
+	TD_TACT	= 0x80000000,
+	TD_TDLE	= 0x40000000,
+	TD_TFP1	= 0x20000000,
+	TD_TFP0	= 0x10000000,
+	TD_TFE	= 0x08000000,
+	TD_TWBI	= 0x04000000,
+};
+#define TDF1ST	TD_TFP1
+#define TDFEND	TD_TFP0
+#define TD_TFP	(TD_TFP1 | TD_TFP0)
+
+/* Transmit descriptor 1 bits */
+enum TD_LEN_BIT {
+	TD_TBL	= 0xffff0000,	/* transmit buffer length */
+};
+
+/* The sh ether Rx buffer descriptors.
+ * This structure should be 20 bytes.
+ */
+struct sh_eth_rxdesc {
+	u32 status;		/* RD0 */
+	u32 len;		/* RD1 */
+	u32 addr;		/* RD2 */
+	u32 pad0;		/* padding data */
+} __aligned(2) __packed;
+
+/* Receive descriptor 0 bits */
+enum RD_STS_BIT {
+	RD_RACT	= 0x80000000,
+	RD_RDLE	= 0x40000000,
+	RD_RFP1	= 0x20000000,
+	RD_RFP0	= 0x10000000,
+	RD_RFE	= 0x08000000,
+	RD_RFS10 = 0x00000200,
+	RD_RFS9	= 0x00000100,
+	RD_RFS8	= 0x00000080,
+	RD_RFS7	= 0x00000040,
+	RD_RFS6	= 0x00000020,
+	RD_RFS5	= 0x00000010,
+	RD_RFS4	= 0x00000008,
+	RD_RFS3	= 0x00000004,
+	RD_RFS2	= 0x00000002,
+	RD_RFS1	= 0x00000001,
+};
+#define RDF1ST	RD_RFP1
+#define RDFEND	RD_RFP0
+#define RD_RFP	(RD_RFP1 | RD_RFP0)
+
+/* Receive descriptor 1 bits */
+enum RD_LEN_BIT {
+	RD_RFL	= 0x0000ffff,	/* receive frame  length */
+	RD_RBL	= 0xffff0000,	/* receive buffer length */
+};
+
+/* This structure is used by each CPU dependency handling. */
+struct sh_eth_cpu_data {
+	/* mandatory functions */
+	int (*soft_reset)(struct net_device *ndev);
+
+	/* optional functions */
+	void (*chip_reset)(struct net_device *ndev);
+	void (*set_duplex)(struct net_device *ndev);
+	void (*set_rate)(struct net_device *ndev);
+
+	/* mandatory initialize value */
+	int register_type;
+	u32 edtrr_trns;
+	u32 eesipr_value;
+
+	/* optional initialize value */
+	u32 ecsr_value;
+	u32 ecsipr_value;
+	u32 fdr_value;
+	u32 fcftr_value;
+
+	/* interrupt checking mask */
+	u32 tx_check;
+	u32 eesr_err_check;
+
+	/* Error mask */
+	u32 trscer_err_mask;
+
+	/* hardware features */
+	unsigned long irq_flags; /* IRQ configuration flags */
+	unsigned no_psr:1;	/* EtherC DOES NOT have PSR */
+	unsigned apr:1;		/* EtherC has APR */
+	unsigned mpr:1;		/* EtherC has MPR */
+	unsigned tpauser:1;	/* EtherC has TPAUSER */
+	unsigned gecmr:1;	/* EtherC has GECMR */
+	unsigned bculr:1;	/* EtherC has BCULR */
+	unsigned tsu:1;		/* EtherC has TSU */
+	unsigned hw_swap:1;	/* E-DMAC has DE bit in EDMR */
+	unsigned nbst:1;	/* E-DMAC has NBST bit in EDMR */
+	unsigned rpadir:1;	/* E-DMAC has RPADIR */
+	unsigned no_trimd:1;	/* E-DMAC DOES NOT have TRIMD */
+	unsigned no_ade:1;	/* E-DMAC DOES NOT have ADE bit in EESR */
+	unsigned no_xdfar:1;	/* E-DMAC DOES NOT have RDFAR/TDFAR */
+	unsigned xdfar_rw:1;	/* E-DMAC has writeable RDFAR/TDFAR */
+	unsigned csmr:1;	/* E-DMAC has CSMR */
+	unsigned rx_csum:1;	/* EtherC has ECMR.RCSC */
+	unsigned select_mii:1;	/* EtherC has RMII_MII (MII select register) */
+	unsigned rmiimode:1;	/* EtherC has RMIIMODE register */
+	unsigned rtrate:1;	/* EtherC has RTRATE register */
+	unsigned magic:1;	/* EtherC has ECMR.MPDE and ECSR.MPD */
+	unsigned no_tx_cntrs:1;	/* EtherC DOES NOT have TX error counters */
+	unsigned cexcr:1;	/* EtherC has CERCR/CEECR */
+	unsigned dual_port:1;	/* Dual EtherC/E-DMAC */
+};
+
+struct sh_eth_private {
+	struct platform_device *pdev;
+	struct sh_eth_cpu_data *cd;
+	const u16 *reg_offset;
+	void __iomem *addr;
+	void __iomem *tsu_addr;
+	struct clk *clk;
+	u32 num_rx_ring;
+	u32 num_tx_ring;
+	dma_addr_t rx_desc_dma;
+	dma_addr_t tx_desc_dma;
+	struct sh_eth_rxdesc *rx_ring;
+	struct sh_eth_txdesc *tx_ring;
+	struct sk_buff **rx_skbuff;
+	struct sk_buff **tx_skbuff;
+	spinlock_t lock;		/* Register access lock */
+	u32 cur_rx, dirty_rx;		/* Producer/consumer ring indices */
+	u32 cur_tx, dirty_tx;
+	u32 rx_buf_sz;			/* Based on MTU+slack. */
+	struct napi_struct napi;
+	bool irq_enabled;
+	/* MII transceiver section. */
+	u32 phy_id;			/* PHY ID */
+	struct mii_bus *mii_bus;	/* MDIO bus control */
+	int link;
+	phy_interface_t phy_interface;
+	int msg_enable;
+	int speed;
+	int duplex;
+	int port;			/* for TSU */
+	int vlan_num_ids;		/* for VLAN tag filter */
+
+	unsigned no_ether_link:1;
+	unsigned ether_link_active_low:1;
+	unsigned is_opened:1;
+	unsigned wol_enabled:1;
+};
+
+#endif	/* #ifndef __SH_ETH_H__ */