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Diffstat (limited to 'drivers/pci/controller/pcie-rcar.h')
-rw-r--r--drivers/pci/controller/pcie-rcar.h147
1 files changed, 147 insertions, 0 deletions
diff --git a/drivers/pci/controller/pcie-rcar.h b/drivers/pci/controller/pcie-rcar.h
new file mode 100644
index 0000000000..6799f81392
--- /dev/null
+++ b/drivers/pci/controller/pcie-rcar.h
@@ -0,0 +1,147 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * PCIe driver for Renesas R-Car SoCs
+ * Copyright (C) 2014-2020 Renesas Electronics Europe Ltd
+ *
+ * Author: Phil Edworthy <phil.edworthy@renesas.com>
+ */
+
+#ifndef _PCIE_RCAR_H
+#define _PCIE_RCAR_H
+
+#define PCIECAR 0x000010
+#define PCIECCTLR 0x000018
+#define PCIECCTLR_CCIE BIT(31)
+#define TYPE0 (0 << 8)
+#define TYPE1 BIT(8)
+#define PCIECDR 0x000020
+#define PCIEMSR 0x000028
+#define PCIEINTXR 0x000400
+#define ASTINTX BIT(16)
+#define PCIEPHYSR 0x0007f0
+#define PHYRDY BIT(0)
+#define PCIEMSITXR 0x000840
+
+/* Transfer control */
+#define PCIETCTLR 0x02000
+#define DL_DOWN BIT(3)
+#define CFINIT BIT(0)
+#define PCIETSTR 0x02004
+#define DATA_LINK_ACTIVE BIT(0)
+#define PCIEERRFR 0x02020
+#define UNSUPPORTED_REQUEST BIT(4)
+#define PCIEMSIFR 0x02044
+#define PCIEMSIALR 0x02048
+#define MSIFE BIT(0)
+#define PCIEMSIAUR 0x0204c
+#define PCIEMSIIER 0x02050
+
+/* root port address */
+#define PCIEPRAR(x) (0x02080 + ((x) * 0x4))
+
+/* local address reg & mask */
+#define PCIELAR(x) (0x02200 + ((x) * 0x20))
+#define PCIELAMR(x) (0x02208 + ((x) * 0x20))
+#define LAM_PREFETCH BIT(3)
+#define LAM_64BIT BIT(2)
+#define LAR_ENABLE BIT(1)
+
+/* PCIe address reg & mask */
+#define PCIEPALR(x) (0x03400 + ((x) * 0x20))
+#define PCIEPAUR(x) (0x03404 + ((x) * 0x20))
+#define PCIEPAMR(x) (0x03408 + ((x) * 0x20))
+#define PCIEPTCTLR(x) (0x0340c + ((x) * 0x20))
+#define PAR_ENABLE BIT(31)
+#define IO_SPACE BIT(8)
+
+/* Configuration */
+#define PCICONF(x) (0x010000 + ((x) * 0x4))
+#define INTDIS BIT(10)
+#define PMCAP(x) (0x010040 + ((x) * 0x4))
+#define MSICAP(x) (0x010050 + ((x) * 0x4))
+#define MSICAP0_MSIE BIT(16)
+#define MSICAP0_MMESCAP_OFFSET 17
+#define MSICAP0_MMESE_OFFSET 20
+#define MSICAP0_MMESE_MASK GENMASK(22, 20)
+#define EXPCAP(x) (0x010070 + ((x) * 0x4))
+#define VCCAP(x) (0x010100 + ((x) * 0x4))
+
+/* link layer */
+#define IDSETR0 0x011000
+#define IDSETR1 0x011004
+#define SUBIDSETR 0x011024
+#define TLCTLR 0x011048
+#define MACSR 0x011054
+#define SPCHGFIN BIT(4)
+#define SPCHGFAIL BIT(6)
+#define SPCHGSUC BIT(7)
+#define LINK_SPEED (0xf << 16)
+#define LINK_SPEED_2_5GTS (1 << 16)
+#define LINK_SPEED_5_0GTS (2 << 16)
+#define MACCTLR 0x011058
+#define MACCTLR_NFTS_MASK GENMASK(23, 16) /* The name is from SH7786 */
+#define SPEED_CHANGE BIT(24)
+#define SCRAMBLE_DISABLE BIT(27)
+#define LTSMDIS BIT(31)
+#define MACCTLR_INIT_VAL (LTSMDIS | MACCTLR_NFTS_MASK)
+#define PMSR 0x01105c
+#define L1FAEG BIT(31)
+#define PMEL1RX BIT(23)
+#define PMSTATE GENMASK(18, 16)
+#define PMSTATE_L1 (3 << 16)
+#define PMCTLR 0x011060
+#define L1IATN BIT(31)
+
+#define MACS2R 0x011078
+#define MACCGSPSETR 0x011084
+#define SPCNGRSN BIT(31)
+
+/* R-Car H1 PHY */
+#define H1_PCIEPHYADRR 0x04000c
+#define WRITE_CMD BIT(16)
+#define PHY_ACK BIT(24)
+#define RATE_POS 12
+#define LANE_POS 8
+#define ADR_POS 0
+#define H1_PCIEPHYDOUTR 0x040014
+
+/* R-Car Gen2 PHY */
+#define GEN2_PCIEPHYADDR 0x780
+#define GEN2_PCIEPHYDATA 0x784
+#define GEN2_PCIEPHYCTRL 0x78c
+
+#define INT_PCI_MSI_NR 32
+
+#define RCONF(x) (PCICONF(0) + (x))
+#define RPMCAP(x) (PMCAP(0) + (x))
+#define REXPCAP(x) (EXPCAP(0) + (x))
+#define RVCCAP(x) (VCCAP(0) + (x))
+
+#define PCIE_CONF_BUS(b) (((b) & 0xff) << 24)
+#define PCIE_CONF_DEV(d) (((d) & 0x1f) << 19)
+#define PCIE_CONF_FUNC(f) (((f) & 0x7) << 16)
+
+#define RCAR_PCI_MAX_RESOURCES 4
+#define MAX_NR_INBOUND_MAPS 6
+
+struct rcar_pcie {
+ struct device *dev;
+ void __iomem *base;
+};
+
+enum {
+ RCAR_PCI_ACCESS_READ,
+ RCAR_PCI_ACCESS_WRITE,
+};
+
+void rcar_pci_write_reg(struct rcar_pcie *pcie, u32 val, unsigned int reg);
+u32 rcar_pci_read_reg(struct rcar_pcie *pcie, unsigned int reg);
+void rcar_rmw32(struct rcar_pcie *pcie, int where, u32 mask, u32 data);
+int rcar_pcie_wait_for_phyrdy(struct rcar_pcie *pcie);
+int rcar_pcie_wait_for_dl(struct rcar_pcie *pcie);
+void rcar_pcie_set_outbound(struct rcar_pcie *pcie, int win,
+ struct resource_entry *window);
+void rcar_pcie_set_inbound(struct rcar_pcie *pcie, u64 cpu_addr,
+ u64 pci_addr, u64 flags, int idx, bool host);
+
+#endif