Adding upstream version 6.1.76.upstream/6.1.76upstream

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

1 files changed, 958 insertions, 0 deletions

diff --git a/drivers/net/ethernet/cortina/gemini.h b/drivers/net/ethernet/cortina/gemini.h
new file mode 100644
index 000000000..24bb98998
--- /dev/null
+++ b/drivers/net/ethernet/cortina/gemini.h
@@ -0,0 +1,958 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Register definitions for Gemini GMAC Ethernet device driver
+ *
+ * Copyright (C) 2006 Storlink, Corp.
+ * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ * Copyright (C) 2010 Michał Mirosław <mirq-linux@rere.qmqm.pl>
+ * Copytight (C) 2017 Linus Walleij <linus.walleij@linaro.org>
+ */
+#ifndef _GEMINI_ETHERNET_H
+#define _GEMINI_ETHERNET_H
+
+#include <linux/bitops.h>
+
+/* Base Registers */
+#define TOE_NONTOE_QUE_HDR_BASE		0x2000
+#define TOE_TOE_QUE_HDR_BASE		0x3000
+
+/* Queue ID */
+#define TOE_SW_FREE_QID			0x00
+#define TOE_HW_FREE_QID			0x01
+#define TOE_GMAC0_SW_TXQ0_QID		0x02
+#define TOE_GMAC0_SW_TXQ1_QID		0x03
+#define TOE_GMAC0_SW_TXQ2_QID		0x04
+#define TOE_GMAC0_SW_TXQ3_QID		0x05
+#define TOE_GMAC0_SW_TXQ4_QID		0x06
+#define TOE_GMAC0_SW_TXQ5_QID		0x07
+#define TOE_GMAC0_HW_TXQ0_QID		0x08
+#define TOE_GMAC0_HW_TXQ1_QID		0x09
+#define TOE_GMAC0_HW_TXQ2_QID		0x0A
+#define TOE_GMAC0_HW_TXQ3_QID		0x0B
+#define TOE_GMAC1_SW_TXQ0_QID		0x12
+#define TOE_GMAC1_SW_TXQ1_QID		0x13
+#define TOE_GMAC1_SW_TXQ2_QID		0x14
+#define TOE_GMAC1_SW_TXQ3_QID		0x15
+#define TOE_GMAC1_SW_TXQ4_QID		0x16
+#define TOE_GMAC1_SW_TXQ5_QID		0x17
+#define TOE_GMAC1_HW_TXQ0_QID		0x18
+#define TOE_GMAC1_HW_TXQ1_QID		0x19
+#define TOE_GMAC1_HW_TXQ2_QID		0x1A
+#define TOE_GMAC1_HW_TXQ3_QID		0x1B
+#define TOE_GMAC0_DEFAULT_QID		0x20
+#define TOE_GMAC1_DEFAULT_QID		0x21
+#define TOE_CLASSIFICATION_QID(x)	(0x22 + x)	/* 0x22 ~ 0x2F */
+#define TOE_TOE_QID(x)			(0x40 + x)	/* 0x40 ~ 0x7F */
+
+/* TOE DMA Queue Size should be 2^n, n = 6...12
+ * TOE DMA Queues are the following queue types:
+ *		SW Free Queue, HW Free Queue,
+ *		GMAC 0/1 SW TX Q0-5, and GMAC 0/1 HW TX Q0-5
+ * The base address and descriptor number are configured at
+ * DMA Queues Descriptor Ring Base Address/Size Register (offset 0x0004)
+ */
+#define GET_WPTR(addr)			readw((addr) + 2)
+#define GET_RPTR(addr)			readw((addr))
+#define SET_WPTR(addr, data)		writew((data), (addr) + 2)
+#define SET_RPTR(addr, data)		writew((data), (addr))
+#define __RWPTR_NEXT(x, mask)		(((unsigned int)(x) + 1) & (mask))
+#define __RWPTR_PREV(x, mask)		(((unsigned int)(x) - 1) & (mask))
+#define __RWPTR_DISTANCE(r, w, mask)	(((unsigned int)(w) - (r)) & (mask))
+#define __RWPTR_MASK(order)		((1 << (order)) - 1)
+#define RWPTR_NEXT(x, order)		__RWPTR_NEXT((x), __RWPTR_MASK((order)))
+#define RWPTR_PREV(x, order)		__RWPTR_PREV((x), __RWPTR_MASK((order)))
+#define RWPTR_DISTANCE(r, w, order)	__RWPTR_DISTANCE((r), (w), \
+						__RWPTR_MASK((order)))
+
+/* Global registers */
+#define GLOBAL_TOE_VERSION_REG		0x0000
+#define GLOBAL_SW_FREEQ_BASE_SIZE_REG	0x0004
+#define GLOBAL_HW_FREEQ_BASE_SIZE_REG	0x0008
+#define GLOBAL_DMA_SKB_SIZE_REG		0x0010
+#define GLOBAL_SWFQ_RWPTR_REG		0x0014
+#define GLOBAL_HWFQ_RWPTR_REG		0x0018
+#define GLOBAL_INTERRUPT_STATUS_0_REG	0x0020
+#define GLOBAL_INTERRUPT_ENABLE_0_REG	0x0024
+#define GLOBAL_INTERRUPT_SELECT_0_REG	0x0028
+#define GLOBAL_INTERRUPT_STATUS_1_REG	0x0030
+#define GLOBAL_INTERRUPT_ENABLE_1_REG	0x0034
+#define GLOBAL_INTERRUPT_SELECT_1_REG	0x0038
+#define GLOBAL_INTERRUPT_STATUS_2_REG	0x0040
+#define GLOBAL_INTERRUPT_ENABLE_2_REG	0x0044
+#define GLOBAL_INTERRUPT_SELECT_2_REG	0x0048
+#define GLOBAL_INTERRUPT_STATUS_3_REG	0x0050
+#define GLOBAL_INTERRUPT_ENABLE_3_REG	0x0054
+#define GLOBAL_INTERRUPT_SELECT_3_REG	0x0058
+#define GLOBAL_INTERRUPT_STATUS_4_REG	0x0060
+#define GLOBAL_INTERRUPT_ENABLE_4_REG	0x0064
+#define GLOBAL_INTERRUPT_SELECT_4_REG	0x0068
+#define GLOBAL_HASH_TABLE_BASE_REG	0x006C
+#define GLOBAL_QUEUE_THRESHOLD_REG	0x0070
+
+/* GMAC 0/1 DMA/TOE register */
+#define GMAC_DMA_CTRL_REG		0x0000
+#define GMAC_TX_WEIGHTING_CTRL_0_REG	0x0004
+#define GMAC_TX_WEIGHTING_CTRL_1_REG	0x0008
+#define GMAC_SW_TX_QUEUE0_PTR_REG	0x000C
+#define GMAC_SW_TX_QUEUE1_PTR_REG	0x0010
+#define GMAC_SW_TX_QUEUE2_PTR_REG	0x0014
+#define GMAC_SW_TX_QUEUE3_PTR_REG	0x0018
+#define GMAC_SW_TX_QUEUE4_PTR_REG	0x001C
+#define GMAC_SW_TX_QUEUE5_PTR_REG	0x0020
+#define GMAC_SW_TX_QUEUE_PTR_REG(i)	(GMAC_SW_TX_QUEUE0_PTR_REG + 4 * (i))
+#define GMAC_HW_TX_QUEUE0_PTR_REG	0x0024
+#define GMAC_HW_TX_QUEUE1_PTR_REG	0x0028
+#define GMAC_HW_TX_QUEUE2_PTR_REG	0x002C
+#define GMAC_HW_TX_QUEUE3_PTR_REG	0x0030
+#define GMAC_HW_TX_QUEUE_PTR_REG(i)	(GMAC_HW_TX_QUEUE0_PTR_REG + 4 * (i))
+#define GMAC_DMA_TX_FIRST_DESC_REG	0x0038
+#define GMAC_DMA_TX_CURR_DESC_REG	0x003C
+#define GMAC_DMA_TX_DESC_WORD0_REG	0x0040
+#define GMAC_DMA_TX_DESC_WORD1_REG	0x0044
+#define GMAC_DMA_TX_DESC_WORD2_REG	0x0048
+#define GMAC_DMA_TX_DESC_WORD3_REG	0x004C
+#define GMAC_SW_TX_QUEUE_BASE_REG	0x0050
+#define GMAC_HW_TX_QUEUE_BASE_REG	0x0054
+#define GMAC_DMA_RX_FIRST_DESC_REG	0x0058
+#define GMAC_DMA_RX_CURR_DESC_REG	0x005C
+#define GMAC_DMA_RX_DESC_WORD0_REG	0x0060
+#define GMAC_DMA_RX_DESC_WORD1_REG	0x0064
+#define GMAC_DMA_RX_DESC_WORD2_REG	0x0068
+#define GMAC_DMA_RX_DESC_WORD3_REG	0x006C
+#define GMAC_HASH_ENGINE_REG0		0x0070
+#define GMAC_HASH_ENGINE_REG1		0x0074
+/* matching rule 0 Control register 0 */
+#define GMAC_MR0CR0			0x0078
+#define GMAC_MR0CR1			0x007C
+#define GMAC_MR0CR2			0x0080
+#define GMAC_MR1CR0			0x0084
+#define GMAC_MR1CR1			0x0088
+#define GMAC_MR1CR2			0x008C
+#define GMAC_MR2CR0			0x0090
+#define GMAC_MR2CR1			0x0094
+#define GMAC_MR2CR2			0x0098
+#define GMAC_MR3CR0			0x009C
+#define GMAC_MR3CR1			0x00A0
+#define GMAC_MR3CR2			0x00A4
+/* Support Protocol Register 0 */
+#define GMAC_SPR0			0x00A8
+#define GMAC_SPR1			0x00AC
+#define GMAC_SPR2			0x00B0
+#define GMAC_SPR3			0x00B4
+#define GMAC_SPR4			0x00B8
+#define GMAC_SPR5			0x00BC
+#define GMAC_SPR6			0x00C0
+#define GMAC_SPR7			0x00C4
+/* GMAC Hash/Rx/Tx AHB Weighting register */
+#define GMAC_AHB_WEIGHT_REG		0x00C8
+
+/* TOE GMAC 0/1 register */
+#define GMAC_STA_ADD0			0x0000
+#define GMAC_STA_ADD1			0x0004
+#define GMAC_STA_ADD2			0x0008
+#define GMAC_RX_FLTR			0x000c
+#define GMAC_MCAST_FIL0			0x0010
+#define GMAC_MCAST_FIL1			0x0014
+#define GMAC_CONFIG0			0x0018
+#define GMAC_CONFIG1			0x001c
+#define GMAC_CONFIG2			0x0020
+#define GMAC_CONFIG3			0x0024
+#define GMAC_RESERVED			0x0028
+#define GMAC_STATUS			0x002c
+#define GMAC_IN_DISCARDS		0x0030
+#define GMAC_IN_ERRORS			0x0034
+#define GMAC_IN_MCAST			0x0038
+#define GMAC_IN_BCAST			0x003c
+#define GMAC_IN_MAC1			0x0040	/* for STA 1 MAC Address */
+#define GMAC_IN_MAC2			0x0044	/* for STA 2 MAC Address */
+
+#define RX_STATS_NUM	6
+
+/* DMA Queues description Ring Base Address/Size Register (offset 0x0004) */
+union dma_q_base_size {
+	unsigned int bits32;
+	unsigned int base_size;
+};
+
+#define DMA_Q_BASE_MASK		(~0x0f)
+
+/* DMA SKB Buffer register (offset 0x0008) */
+union dma_skb_size {
+	unsigned int bits32;
+	struct bit_0008 {
+		unsigned int sw_skb_size : 16;	/* SW Free poll SKB Size */
+		unsigned int hw_skb_size : 16;	/* HW Free poll SKB Size */
+	} bits;
+};
+
+/* DMA SW Free Queue Read/Write Pointer Register (offset 0x000c) */
+union dma_rwptr {
+	unsigned int bits32;
+	struct bit_000c {
+		unsigned int rptr	: 16;	/* Read Ptr, RO */
+		unsigned int wptr	: 16;	/* Write Ptr, RW */
+	} bits;
+};
+
+/* Interrupt Status Register 0	(offset 0x0020)
+ * Interrupt Mask Register 0	(offset 0x0024)
+ * Interrupt Select Register 0	(offset 0x0028)
+ */
+#define GMAC1_TXDERR_INT_BIT		BIT(31)
+#define GMAC1_TXPERR_INT_BIT		BIT(30)
+#define GMAC0_TXDERR_INT_BIT		BIT(29)
+#define GMAC0_TXPERR_INT_BIT		BIT(28)
+#define GMAC1_RXDERR_INT_BIT		BIT(27)
+#define GMAC1_RXPERR_INT_BIT		BIT(26)
+#define GMAC0_RXDERR_INT_BIT		BIT(25)
+#define GMAC0_RXPERR_INT_BIT		BIT(24)
+#define GMAC1_SWTQ15_FIN_INT_BIT	BIT(23)
+#define GMAC1_SWTQ14_FIN_INT_BIT	BIT(22)
+#define GMAC1_SWTQ13_FIN_INT_BIT	BIT(21)
+#define GMAC1_SWTQ12_FIN_INT_BIT	BIT(20)
+#define GMAC1_SWTQ11_FIN_INT_BIT	BIT(19)
+#define GMAC1_SWTQ10_FIN_INT_BIT	BIT(18)
+#define GMAC0_SWTQ05_FIN_INT_BIT	BIT(17)
+#define GMAC0_SWTQ04_FIN_INT_BIT	BIT(16)
+#define GMAC0_SWTQ03_FIN_INT_BIT	BIT(15)
+#define GMAC0_SWTQ02_FIN_INT_BIT	BIT(14)
+#define GMAC0_SWTQ01_FIN_INT_BIT	BIT(13)
+#define GMAC0_SWTQ00_FIN_INT_BIT	BIT(12)
+#define GMAC1_SWTQ15_EOF_INT_BIT	BIT(11)
+#define GMAC1_SWTQ14_EOF_INT_BIT	BIT(10)
+#define GMAC1_SWTQ13_EOF_INT_BIT	BIT(9)
+#define GMAC1_SWTQ12_EOF_INT_BIT	BIT(8)
+#define GMAC1_SWTQ11_EOF_INT_BIT	BIT(7)
+#define GMAC1_SWTQ10_EOF_INT_BIT	BIT(6)
+#define GMAC0_SWTQ05_EOF_INT_BIT	BIT(5)
+#define GMAC0_SWTQ04_EOF_INT_BIT	BIT(4)
+#define GMAC0_SWTQ03_EOF_INT_BIT	BIT(3)
+#define GMAC0_SWTQ02_EOF_INT_BIT	BIT(2)
+#define GMAC0_SWTQ01_EOF_INT_BIT	BIT(1)
+#define GMAC0_SWTQ00_EOF_INT_BIT	BIT(0)
+
+/* Interrupt Status Register 1	(offset 0x0030)
+ * Interrupt Mask Register 1	(offset 0x0034)
+ * Interrupt Select Register 1	(offset 0x0038)
+ */
+#define TOE_IQ3_FULL_INT_BIT		BIT(31)
+#define TOE_IQ2_FULL_INT_BIT		BIT(30)
+#define TOE_IQ1_FULL_INT_BIT		BIT(29)
+#define TOE_IQ0_FULL_INT_BIT		BIT(28)
+#define TOE_IQ3_INT_BIT			BIT(27)
+#define TOE_IQ2_INT_BIT			BIT(26)
+#define TOE_IQ1_INT_BIT			BIT(25)
+#define TOE_IQ0_INT_BIT			BIT(24)
+#define GMAC1_HWTQ13_EOF_INT_BIT	BIT(23)
+#define GMAC1_HWTQ12_EOF_INT_BIT	BIT(22)
+#define GMAC1_HWTQ11_EOF_INT_BIT	BIT(21)
+#define GMAC1_HWTQ10_EOF_INT_BIT	BIT(20)
+#define GMAC0_HWTQ03_EOF_INT_BIT	BIT(19)
+#define GMAC0_HWTQ02_EOF_INT_BIT	BIT(18)
+#define GMAC0_HWTQ01_EOF_INT_BIT	BIT(17)
+#define GMAC0_HWTQ00_EOF_INT_BIT	BIT(16)
+#define CLASS_RX_INT_BIT(x)		BIT((x + 2))
+#define DEFAULT_Q1_INT_BIT		BIT(1)
+#define DEFAULT_Q0_INT_BIT		BIT(0)
+
+#define TOE_IQ_INT_BITS		(TOE_IQ0_INT_BIT | TOE_IQ1_INT_BIT | \
+				 TOE_IQ2_INT_BIT | TOE_IQ3_INT_BIT)
+#define	TOE_IQ_FULL_BITS	(TOE_IQ0_FULL_INT_BIT | TOE_IQ1_FULL_INT_BIT | \
+				 TOE_IQ2_FULL_INT_BIT | TOE_IQ3_FULL_INT_BIT)
+#define	TOE_IQ_ALL_BITS		(TOE_IQ_INT_BITS | TOE_IQ_FULL_BITS)
+#define TOE_CLASS_RX_INT_BITS	0xfffc
+
+/* Interrupt Status Register 2	(offset 0x0040)
+ * Interrupt Mask Register 2	(offset 0x0044)
+ * Interrupt Select Register 2	(offset 0x0048)
+ */
+#define TOE_QL_FULL_INT_BIT(x)		BIT(x)
+
+/* Interrupt Status Register 3	(offset 0x0050)
+ * Interrupt Mask Register 3	(offset 0x0054)
+ * Interrupt Select Register 3	(offset 0x0058)
+ */
+#define TOE_QH_FULL_INT_BIT(x)		BIT(x - 32)
+
+/* Interrupt Status Register 4	(offset 0x0060)
+ * Interrupt Mask Register 4	(offset 0x0064)
+ * Interrupt Select Register 4	(offset 0x0068)
+ */
+#define GMAC1_RESERVED_INT_BIT		BIT(31)
+#define GMAC1_MIB_INT_BIT		BIT(30)
+#define GMAC1_RX_PAUSE_ON_INT_BIT	BIT(29)
+#define GMAC1_TX_PAUSE_ON_INT_BIT	BIT(28)
+#define GMAC1_RX_PAUSE_OFF_INT_BIT	BIT(27)
+#define GMAC1_TX_PAUSE_OFF_INT_BIT	BIT(26)
+#define GMAC1_RX_OVERRUN_INT_BIT	BIT(25)
+#define GMAC1_STATUS_CHANGE_INT_BIT	BIT(24)
+#define GMAC0_RESERVED_INT_BIT		BIT(23)
+#define GMAC0_MIB_INT_BIT		BIT(22)
+#define GMAC0_RX_PAUSE_ON_INT_BIT	BIT(21)
+#define GMAC0_TX_PAUSE_ON_INT_BIT	BIT(20)
+#define GMAC0_RX_PAUSE_OFF_INT_BIT	BIT(19)
+#define GMAC0_TX_PAUSE_OFF_INT_BIT	BIT(18)
+#define GMAC0_RX_OVERRUN_INT_BIT	BIT(17)
+#define GMAC0_STATUS_CHANGE_INT_BIT	BIT(16)
+#define CLASS_RX_FULL_INT_BIT(x)	BIT(x + 2)
+#define HWFQ_EMPTY_INT_BIT		BIT(1)
+#define SWFQ_EMPTY_INT_BIT		BIT(0)
+
+#define GMAC0_INT_BITS	(GMAC0_RESERVED_INT_BIT | GMAC0_MIB_INT_BIT | \
+			 GMAC0_RX_PAUSE_ON_INT_BIT | \
+			 GMAC0_TX_PAUSE_ON_INT_BIT | \
+			 GMAC0_RX_PAUSE_OFF_INT_BIT | \
+			 GMAC0_TX_PAUSE_OFF_INT_BIT | \
+			 GMAC0_RX_OVERRUN_INT_BIT | \
+			 GMAC0_STATUS_CHANGE_INT_BIT)
+#define GMAC1_INT_BITS	(GMAC1_RESERVED_INT_BIT | GMAC1_MIB_INT_BIT | \
+			 GMAC1_RX_PAUSE_ON_INT_BIT | \
+			 GMAC1_TX_PAUSE_ON_INT_BIT | \
+			 GMAC1_RX_PAUSE_OFF_INT_BIT | \
+			 GMAC1_TX_PAUSE_OFF_INT_BIT | \
+			 GMAC1_RX_OVERRUN_INT_BIT | \
+			 GMAC1_STATUS_CHANGE_INT_BIT)
+
+#define CLASS_RX_FULL_INT_BITS		0xfffc
+
+/* GLOBAL_QUEUE_THRESHOLD_REG	(offset 0x0070) */
+union queue_threshold {
+	unsigned int bits32;
+	struct bit_0070_2 {
+		/*  7:0 Software Free Queue Empty Threshold */
+		unsigned int swfq_empty:8;
+		/* 15:8 Hardware Free Queue Empty Threshold */
+		unsigned int hwfq_empty:8;
+		/* 23:16 */
+		unsigned int intrq:8;
+		/* 31:24 */
+		unsigned int toe_class:8;
+	} bits;
+};
+
+/* GMAC DMA Control Register
+ * GMAC0 offset 0x8000
+ * GMAC1 offset 0xC000
+ */
+union gmac_dma_ctrl {
+	unsigned int bits32;
+	struct bit_8000 {
+		/* bit 1:0 Peripheral Bus Width */
+		unsigned int td_bus:2;
+		/* bit 3:2 TxDMA max burst size for every AHB request */
+		unsigned int td_burst_size:2;
+		/* bit 7:4 TxDMA protection control */
+		unsigned int td_prot:4;
+		/* bit 9:8 Peripheral Bus Width */
+		unsigned int rd_bus:2;
+		/* bit 11:10 DMA max burst size for every AHB request */
+		unsigned int rd_burst_size:2;
+		/* bit 15:12 DMA Protection Control */
+		unsigned int rd_prot:4;
+		/* bit 17:16 */
+		unsigned int rd_insert_bytes:2;
+		/* bit 27:18 */
+		unsigned int reserved:10;
+		/* bit 28 1: Drop, 0: Accept */
+		unsigned int drop_small_ack:1;
+		/* bit 29 Loopback TxDMA to RxDMA */
+		unsigned int loopback:1;
+		/* bit 30 Tx DMA Enable */
+		unsigned int td_enable:1;
+		/* bit 31 Rx DMA Enable */
+		unsigned int rd_enable:1;
+	} bits;
+};
+
+/* GMAC Tx Weighting Control Register 0
+ * GMAC0 offset 0x8004
+ * GMAC1 offset 0xC004
+ */
+union gmac_tx_wcr0 {
+	unsigned int bits32;
+	struct bit_8004 {
+		/* bit 5:0 HW TX Queue 3 */
+		unsigned int hw_tq0:6;
+		/* bit 11:6 HW TX Queue 2 */
+		unsigned int hw_tq1:6;
+		/* bit 17:12 HW TX Queue 1 */
+		unsigned int hw_tq2:6;
+		/* bit 23:18 HW TX Queue 0 */
+		unsigned int hw_tq3:6;
+		/* bit 31:24 */
+		unsigned int reserved:8;
+	} bits;
+};
+
+/* GMAC Tx Weighting Control Register 1
+ * GMAC0 offset 0x8008
+ * GMAC1 offset 0xC008
+ */
+union gmac_tx_wcr1 {
+	unsigned int bits32;
+	struct bit_8008 {
+		/* bit 4:0 SW TX Queue 0 */
+		unsigned int sw_tq0:5;
+		/* bit 9:5 SW TX Queue 1 */
+		unsigned int sw_tq1:5;
+		/* bit 14:10 SW TX Queue 2 */
+		unsigned int sw_tq2:5;
+		/* bit 19:15 SW TX Queue 3 */
+		unsigned int sw_tq3:5;
+		/* bit 24:20 SW TX Queue 4 */
+		unsigned int sw_tq4:5;
+		/* bit 29:25 SW TX Queue 5 */
+		unsigned int sw_tq5:5;
+		/* bit 31:30 */
+		unsigned int reserved:2;
+	} bits;
+};
+
+/* GMAC DMA Tx Description Word 0 Register
+ * GMAC0 offset 0x8040
+ * GMAC1 offset 0xC040
+ */
+union gmac_txdesc_0 {
+	unsigned int bits32;
+	struct bit_8040 {
+		/* bit 15:0 Transfer size */
+		unsigned int buffer_size:16;
+		/* bit 21:16 number of descriptors used for the current frame */
+		unsigned int desc_count:6;
+		/* bit 22 Tx Status, 1: Successful 0: Failed */
+		unsigned int status_tx_ok:1;
+		/* bit 28:23 Tx Status, Reserved bits */
+		unsigned int status_rvd:6;
+		/* bit 29 protocol error during processing this descriptor */
+		unsigned int perr:1;
+		/* bit 30 data error during processing this descriptor */
+		unsigned int derr:1;
+		/* bit 31 */
+		unsigned int reserved:1;
+	} bits;
+};
+
+/* GMAC DMA Tx Description Word 1 Register
+ * GMAC0 offset 0x8044
+ * GMAC1 offset 0xC044
+ */
+union gmac_txdesc_1 {
+	unsigned int bits32;
+	struct txdesc_word1 {
+		/* bit 15: 0 Tx Frame Byte Count */
+		unsigned int byte_count:16;
+		/* bit 16 TSS segmentation use MTU setting */
+		unsigned int mtu_enable:1;
+		/* bit 17 IPV4 Header Checksum Enable */
+		unsigned int ip_chksum:1;
+		/* bit 18 IPV6 Tx Enable */
+		unsigned int ipv6_enable:1;
+		/* bit 19 TCP Checksum Enable */
+		unsigned int tcp_chksum:1;
+		/* bit 20 UDP Checksum Enable */
+		unsigned int udp_chksum:1;
+		/* bit 21 Bypass HW offload engine */
+		unsigned int bypass_tss:1;
+		/* bit 22 Don't update IP length field */
+		unsigned int ip_fixed_len:1;
+		/* bit 31:23 Tx Flag, Reserved */
+		unsigned int reserved:9;
+	} bits;
+};
+
+#define TSS_IP_FIXED_LEN_BIT	BIT(22)
+#define TSS_BYPASS_BIT		BIT(21)
+#define TSS_UDP_CHKSUM_BIT	BIT(20)
+#define TSS_TCP_CHKSUM_BIT	BIT(19)
+#define TSS_IPV6_ENABLE_BIT	BIT(18)
+#define TSS_IP_CHKSUM_BIT	BIT(17)
+#define TSS_MTU_ENABLE_BIT	BIT(16)
+
+#define TSS_CHECKUM_ENABLE	\
+	(TSS_IP_CHKSUM_BIT | TSS_IPV6_ENABLE_BIT | \
+	 TSS_TCP_CHKSUM_BIT | TSS_UDP_CHKSUM_BIT)
+
+/* GMAC DMA Tx Description Word 2 Register
+ * GMAC0 offset 0x8048
+ * GMAC1 offset 0xC048
+ */
+union gmac_txdesc_2 {
+	unsigned int	bits32;
+	unsigned int	buf_adr;
+};
+
+/* GMAC DMA Tx Description Word 3 Register
+ * GMAC0 offset 0x804C
+ * GMAC1 offset 0xC04C
+ */
+union gmac_txdesc_3 {
+	unsigned int bits32;
+	struct txdesc_word3 {
+		/* bit 12: 0 Tx Frame Byte Count */
+		unsigned int mtu_size:13;
+		/* bit 28:13 */
+		unsigned int reserved:16;
+		/* bit 29 End of frame interrupt enable */
+		unsigned int eofie:1;
+		/* bit 31:30 11: only one, 10: first, 01: last, 00: linking */
+		unsigned int sof_eof:2;
+	} bits;
+};
+
+#define SOF_EOF_BIT_MASK	0x3fffffff
+#define SOF_BIT			0x80000000
+#define EOF_BIT			0x40000000
+#define EOFIE_BIT		BIT(29)
+#define MTU_SIZE_BIT_MASK	0x7ff /* Max MTU 2047 bytes */
+
+/* GMAC Tx Descriptor */
+struct gmac_txdesc {
+	union gmac_txdesc_0 word0;
+	union gmac_txdesc_1 word1;
+	union gmac_txdesc_2 word2;
+	union gmac_txdesc_3 word3;
+};
+
+/* GMAC DMA Rx Description Word 0 Register
+ * GMAC0 offset 0x8060
+ * GMAC1 offset 0xC060
+ */
+union gmac_rxdesc_0 {
+	unsigned int bits32;
+	struct bit_8060 {
+		/* bit 15:0 number of descriptors used for the current frame */
+		unsigned int buffer_size:16;
+		/* bit 21:16 number of descriptors used for the current frame */
+		unsigned int desc_count:6;
+		/* bit 24:22 Status of rx frame */
+		unsigned int status:4;
+		/* bit 28:26 Check Sum Status */
+		unsigned int chksum_status:3;
+		/* bit 29 protocol error during processing this descriptor */
+		unsigned int perr:1;
+		/* bit 30 data error during processing this descriptor */
+		unsigned int derr:1;
+		/* bit 31 TOE/CIS Queue Full dropped packet to default queue */
+		unsigned int drop:1;
+	} bits;
+};
+
+#define	GMAC_RXDESC_0_T_derr			BIT(30)
+#define	GMAC_RXDESC_0_T_perr			BIT(29)
+#define	GMAC_RXDESC_0_T_chksum_status(x)	BIT(x + 26)
+#define	GMAC_RXDESC_0_T_status(x)		BIT(x + 22)
+#define	GMAC_RXDESC_0_T_desc_count(x)		BIT(x + 16)
+
+#define	RX_CHKSUM_IP_UDP_TCP_OK			0
+#define	RX_CHKSUM_IP_OK_ONLY			1
+#define	RX_CHKSUM_NONE				2
+#define	RX_CHKSUM_IP_ERR_UNKNOWN		4
+#define	RX_CHKSUM_IP_ERR			5
+#define	RX_CHKSUM_TCP_UDP_ERR			6
+#define RX_CHKSUM_NUM				8
+
+#define RX_STATUS_GOOD_FRAME			0
+#define RX_STATUS_TOO_LONG_GOOD_CRC		1
+#define RX_STATUS_RUNT_FRAME			2
+#define RX_STATUS_SFD_NOT_FOUND			3
+#define RX_STATUS_CRC_ERROR			4
+#define RX_STATUS_TOO_LONG_BAD_CRC		5
+#define RX_STATUS_ALIGNMENT_ERROR		6
+#define RX_STATUS_TOO_LONG_BAD_ALIGN		7
+#define RX_STATUS_RX_ERR			8
+#define RX_STATUS_DA_FILTERED			9
+#define RX_STATUS_BUFFER_FULL			10
+#define RX_STATUS_NUM				16
+
+#define RX_ERROR_LENGTH(s) \
+	((s) == RX_STATUS_TOO_LONG_GOOD_CRC || \
+	 (s) == RX_STATUS_TOO_LONG_BAD_CRC || \
+	 (s) == RX_STATUS_TOO_LONG_BAD_ALIGN)
+#define RX_ERROR_OVER(s) \
+	((s) == RX_STATUS_BUFFER_FULL)
+#define RX_ERROR_CRC(s) \
+	((s) == RX_STATUS_CRC_ERROR || \
+	 (s) == RX_STATUS_TOO_LONG_BAD_CRC)
+#define RX_ERROR_FRAME(s) \
+	((s) == RX_STATUS_ALIGNMENT_ERROR || \
+	 (s) == RX_STATUS_TOO_LONG_BAD_ALIGN)
+#define RX_ERROR_FIFO(s) \
+	(0)
+
+/* GMAC DMA Rx Description Word 1 Register
+ * GMAC0 offset 0x8064
+ * GMAC1 offset 0xC064
+ */
+union gmac_rxdesc_1 {
+	unsigned int bits32;
+	struct rxdesc_word1 {
+		/* bit 15: 0 Rx Frame Byte Count */
+		unsigned int byte_count:16;
+		/* bit 31:16 Software ID */
+		unsigned int sw_id:16;
+	} bits;
+};
+
+/* GMAC DMA Rx Description Word 2 Register
+ * GMAC0 offset 0x8068
+ * GMAC1 offset 0xC068
+ */
+union gmac_rxdesc_2 {
+	unsigned int	bits32;
+	unsigned int	buf_adr;
+};
+
+#define RX_INSERT_NONE		0
+#define RX_INSERT_1_BYTE	1
+#define RX_INSERT_2_BYTE	2
+#define RX_INSERT_3_BYTE	3
+
+/* GMAC DMA Rx Description Word 3 Register
+ * GMAC0 offset 0x806C
+ * GMAC1 offset 0xC06C
+ */
+union gmac_rxdesc_3 {
+	unsigned int bits32;
+	struct rxdesc_word3 {
+		/* bit 7: 0 L3 data offset */
+		unsigned int l3_offset:8;
+		/* bit 15: 8 L4 data offset */
+		unsigned int l4_offset:8;
+		/* bit 23: 16 L7 data offset */
+		unsigned int l7_offset:8;
+		/* bit 24 Duplicated ACK detected */
+		unsigned int dup_ack:1;
+		/* bit 25 abnormal case found */
+		unsigned int abnormal:1;
+		/* bit 26 IPV4 option or IPV6 extension header */
+		unsigned int option:1;
+		/* bit 27 Out of Sequence packet */
+		unsigned int out_of_seq:1;
+		/* bit 28 Control Flag is present */
+		unsigned int ctrl_flag:1;
+		/* bit 29 End of frame interrupt enable */
+		unsigned int eofie:1;
+		/* bit 31:30 11: only one, 10: first, 01: last, 00: linking */
+		unsigned int sof_eof:2;
+	} bits;
+};
+
+/* GMAC Rx Descriptor, this is simply fitted over the queue registers */
+struct gmac_rxdesc {
+	union gmac_rxdesc_0 word0;
+	union gmac_rxdesc_1 word1;
+	union gmac_rxdesc_2 word2;
+	union gmac_rxdesc_3 word3;
+};
+
+/* GMAC Matching Rule Control Register 0
+ * GMAC0 offset 0x8078
+ * GMAC1 offset 0xC078
+ */
+#define MR_L2_BIT		BIT(31)
+#define MR_L3_BIT		BIT(30)
+#define MR_L4_BIT		BIT(29)
+#define MR_L7_BIT		BIT(28)
+#define MR_PORT_BIT		BIT(27)
+#define MR_PRIORITY_BIT		BIT(26)
+#define MR_DA_BIT		BIT(23)
+#define MR_SA_BIT		BIT(22)
+#define MR_ETHER_TYPE_BIT	BIT(21)
+#define MR_VLAN_BIT		BIT(20)
+#define MR_PPPOE_BIT		BIT(19)
+#define MR_IP_VER_BIT		BIT(15)
+#define MR_IP_HDR_LEN_BIT	BIT(14)
+#define MR_FLOW_LABLE_BIT	BIT(13)
+#define MR_TOS_TRAFFIC_BIT	BIT(12)
+#define MR_SPR_BIT(x)		BIT(x)
+#define MR_SPR_BITS		0xff
+
+/* GMAC_AHB_WEIGHT registers
+ * GMAC0 offset 0x80C8
+ * GMAC1 offset 0xC0C8
+ */
+union gmac_ahb_weight {
+	unsigned int bits32;
+	struct bit_80C8 {
+		/* 4:0 */
+		unsigned int hash_weight:5;
+		/* 9:5 */
+		unsigned int rx_weight:5;
+		/* 14:10 */
+		unsigned int tx_weight:5;
+		/* 19:15 Rx Data Pre Request FIFO Threshold */
+		unsigned int pre_req:5;
+		/* 24:20 DMA TqCtrl to Start tqDV FIFO Threshold */
+		unsigned int tq_dv_threshold:5;
+		/* 31:25 */
+		unsigned int reserved:7;
+	} bits;
+};
+
+/* GMAC RX FLTR
+ * GMAC0 Offset 0xA00C
+ * GMAC1 Offset 0xE00C
+ */
+union gmac_rx_fltr {
+	unsigned int bits32;
+	struct bit1_000c {
+		/* Enable receive of unicast frames that are sent to STA
+		 * address
+		 */
+		unsigned int unicast:1;
+		/* Enable receive of multicast frames that pass multicast
+		 * filter
+		 */
+		unsigned int multicast:1;
+		/* Enable receive of broadcast frames */
+		unsigned int broadcast:1;
+		/* Enable receive of all frames */
+		unsigned int promiscuous:1;
+		/* Enable receive of all error frames */
+		unsigned int error:1;
+		unsigned int reserved:27;
+	} bits;
+};
+
+/* GMAC Configuration 0
+ * GMAC0 Offset 0xA018
+ * GMAC1 Offset 0xE018
+ */
+union gmac_config0 {
+	unsigned int bits32;
+	struct bit1_0018 {
+		/* 0: disable transmit */
+		unsigned int dis_tx:1;
+		/* 1: disable receive */
+		unsigned int dis_rx:1;
+		/* 2: transmit data loopback enable */
+		unsigned int loop_back:1;
+		/* 3: flow control also trigged by Rx queues */
+		unsigned int flow_ctrl:1;
+		/* 4-7: adjust IFG from 96+/-56 */
+		unsigned int adj_ifg:4;
+		/* 8-10 maximum receive frame length allowed */
+		unsigned int max_len:3;
+		/* 11: disable back-off function */
+		unsigned int dis_bkoff:1;
+		/* 12: disable 16 collisions abort function */
+		unsigned int dis_col:1;
+		/* 13: speed up timers in simulation */
+		unsigned int sim_test:1;
+		/* 14: RX flow control enable */
+		unsigned int rx_fc_en:1;
+		/* 15: TX flow control enable */
+		unsigned int tx_fc_en:1;
+		/* 16: RGMII in-band status enable */
+		unsigned int rgmii_en:1;
+		/* 17: IPv4 RX Checksum enable */
+		unsigned int ipv4_rx_chksum:1;
+		/* 18: IPv6 RX Checksum enable */
+		unsigned int ipv6_rx_chksum:1;
+		/* 19: Remove Rx VLAN tag */
+		unsigned int rx_tag_remove:1;
+		/* 20 */
+		unsigned int rgmm_edge:1;
+		/* 21 */
+		unsigned int rxc_inv:1;
+		/* 22 */
+		unsigned int ipv6_exthdr_order:1;
+		/* 23 */
+		unsigned int rx_err_detect:1;
+		/* 24 */
+		unsigned int port0_chk_hwq:1;
+		/* 25 */
+		unsigned int port1_chk_hwq:1;
+		/* 26 */
+		unsigned int port0_chk_toeq:1;
+		/* 27 */
+		unsigned int port1_chk_toeq:1;
+		/* 28 */
+		unsigned int port0_chk_classq:1;
+		/* 29 */
+		unsigned int port1_chk_classq:1;
+		/* 30, 31 */
+		unsigned int reserved:2;
+	} bits;
+};
+
+#define CONFIG0_TX_RX_DISABLE	(BIT(1) | BIT(0))
+#define CONFIG0_RX_CHKSUM	(BIT(18) | BIT(17))
+#define CONFIG0_FLOW_RX		BIT(14)
+#define CONFIG0_FLOW_TX		BIT(15)
+#define CONFIG0_FLOW_TX_RX	(BIT(14) | BIT(15))
+#define CONFIG0_FLOW_CTL	(BIT(14) | BIT(15))
+
+#define CONFIG0_MAXLEN_SHIFT	8
+#define CONFIG0_MAXLEN_MASK	(7 << CONFIG0_MAXLEN_SHIFT)
+#define  CONFIG0_MAXLEN_1536	0
+#define  CONFIG0_MAXLEN_1518	1
+#define  CONFIG0_MAXLEN_1522	2
+#define  CONFIG0_MAXLEN_1548	3
+#define  CONFIG0_MAXLEN_9k	4	/* 9212 */
+#define  CONFIG0_MAXLEN_10k	5	/* 10236 */
+#define  CONFIG0_MAXLEN_1518__6	6
+#define  CONFIG0_MAXLEN_1518__7	7
+
+/* GMAC Configuration 1
+ * GMAC0 Offset 0xA01C
+ * GMAC1 Offset 0xE01C
+ */
+union gmac_config1 {
+	unsigned int bits32;
+	struct bit1_001c {
+		/* Flow control set threshold */
+		unsigned int set_threshold:8;
+		/* Flow control release threshold */
+		unsigned int rel_threshold:8;
+		unsigned int reserved:16;
+	} bits;
+};
+
+#define GMAC_FLOWCTRL_SET_MAX		32
+#define GMAC_FLOWCTRL_SET_MIN		0
+#define GMAC_FLOWCTRL_RELEASE_MAX	32
+#define GMAC_FLOWCTRL_RELEASE_MIN	0
+
+/* GMAC Configuration 2
+ * GMAC0 Offset 0xA020
+ * GMAC1 Offset 0xE020
+ */
+union gmac_config2 {
+	unsigned int bits32;
+	struct bit1_0020 {
+		/* Flow control set threshold */
+		unsigned int set_threshold:16;
+		/* Flow control release threshold */
+		unsigned int rel_threshold:16;
+	} bits;
+};
+
+/* GMAC Configuration 3
+ * GMAC0 Offset 0xA024
+ * GMAC1 Offset 0xE024
+ */
+union gmac_config3 {
+	unsigned int bits32;
+	struct bit1_0024 {
+		/* Flow control set threshold */
+		unsigned int set_threshold:16;
+		/* Flow control release threshold */
+		unsigned int rel_threshold:16;
+	} bits;
+};
+
+/* GMAC STATUS
+ * GMAC0 Offset 0xA02C
+ * GMAC1 Offset 0xE02C
+ */
+union gmac_status {
+	unsigned int bits32;
+	struct bit1_002c {
+		/* Link status */
+		unsigned int link:1;
+		/* Link speed(00->2.5M 01->25M 10->125M) */
+		unsigned int speed:2;
+		/* Duplex mode */
+		unsigned int duplex:1;
+		unsigned int reserved_1:1;
+		/* PHY interface type */
+		unsigned int mii_rmii:2;
+		unsigned int reserved_2:25;
+	} bits;
+};
+
+#define GMAC_SPEED_10			0
+#define GMAC_SPEED_100			1
+#define GMAC_SPEED_1000			2
+
+#define GMAC_PHY_MII			0
+#define GMAC_PHY_GMII			1
+#define GMAC_PHY_RGMII_100_10		2
+#define GMAC_PHY_RGMII_1000		3
+
+/* Queue Header
+ *	(1) TOE Queue Header
+ *	(2) Non-TOE Queue Header
+ *	(3) Interrupt Queue Header
+ *
+ * memory Layout
+ *	TOE Queue Header
+ *		     0x60003000 +---------------------------+ 0x0000
+ *				|     TOE Queue 0 Header    |
+ *				|         8 * 4 Bytes	    |
+ *				+---------------------------+ 0x0020
+ *				|     TOE Queue 1 Header    |
+ *				|         8 * 4 Bytes	    |
+ *				+---------------------------+ 0x0040
+ *				|          ......           |
+ *				|                           |
+ *				+---------------------------+
+ *
+ *	Non TOE Queue Header
+ *		     0x60002000 +---------------------------+ 0x0000
+ *				|   Default Queue 0 Header  |
+ *				|         2 * 4 Bytes       |
+ *				+---------------------------+ 0x0008
+ *				|   Default Queue 1 Header  |
+ *				|         2 * 4 Bytes       |
+ *				+---------------------------+ 0x0010
+ *				|   Classification Queue 0  |
+ *				|	  2 * 4 Bytes       |
+ *				+---------------------------+
+ *				|   Classification Queue 1  |
+ *				|	  2 * 4 Bytes       |
+ *				+---------------------------+ (n * 8 + 0x10)
+ *				|		...	    |
+ *				|	  2 * 4 Bytes	    |
+ *				+---------------------------+ (13 * 8 + 0x10)
+ *				|   Classification Queue 13 |
+ *				|	  2 * 4 Bytes	    |
+ *				+---------------------------+ 0x80
+ *				|      Interrupt Queue 0    |
+ *				|	  2 * 4 Bytes	    |
+ *				+---------------------------+
+ *				|      Interrupt Queue 1    |
+ *				|	  2 * 4 Bytes	    |
+ *				+---------------------------+
+ *				|      Interrupt Queue 2    |
+ *				|	  2 * 4 Bytes	    |
+ *				+---------------------------+
+ *				|      Interrupt Queue 3    |
+ *				|	  2 * 4 Bytes	    |
+ *				+---------------------------+
+ *
+ */
+#define TOE_QUEUE_HDR_ADDR(n)	(TOE_TOE_QUE_HDR_BASE + n * 32)
+#define TOE_Q_HDR_AREA_END	(TOE_QUEUE_HDR_ADDR(TOE_TOE_QUEUE_MAX + 1))
+#define TOE_DEFAULT_Q_HDR_BASE(x) (TOE_NONTOE_QUE_HDR_BASE + 0x08 * (x))
+#define TOE_CLASS_Q_HDR_BASE	(TOE_NONTOE_QUE_HDR_BASE + 0x10)
+#define TOE_INTR_Q_HDR_BASE	(TOE_NONTOE_QUE_HDR_BASE + 0x80)
+#define INTERRUPT_QUEUE_HDR_ADDR(n) (TOE_INTR_Q_HDR_BASE + n * 8)
+#define NONTOE_Q_HDR_AREA_END (INTERRUPT_QUEUE_HDR_ADDR(TOE_INTR_QUEUE_MAX + 1))
+
+/* NONTOE Queue Header Word 0 */
+union nontoe_qhdr0 {
+	unsigned int bits32;
+	unsigned int base_size;
+};
+
+#define NONTOE_QHDR0_BASE_MASK	(~0x0f)
+
+/* NONTOE Queue Header Word 1 */
+union nontoe_qhdr1 {
+	unsigned int bits32;
+	struct bit_nonqhdr1 {
+		/* bit 15:0 */
+		unsigned int rptr:16;
+		/* bit 31:16 */
+		unsigned int wptr:16;
+	} bits;
+};
+
+/* Non-TOE Queue Header */
+struct nontoe_qhdr {
+	union nontoe_qhdr0 word0;
+	union nontoe_qhdr1 word1;
+};
+
+#endif /* _GEMINI_ETHERNET_H */