| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * Copyright 2017-2020 NXP |
| * Copyright 2014-2015 Freescale Semiconductor, Inc. |
| * Layerscape PCIe driver |
| */ |
| |
| #ifndef _PCIE_LAYERSCAPE_H_ |
| #define _PCIE_LAYERSCAPE_H_ |
| #include <pci.h> |
| |
| #include <linux/sizes.h> |
| |
| #ifndef CONFIG_SYS_PCI_MEMORY_BUS |
| #define CONFIG_SYS_PCI_MEMORY_BUS CONFIG_SYS_SDRAM_BASE |
| #endif |
| |
| #ifndef CONFIG_SYS_PCI_MEMORY_PHYS |
| #define CONFIG_SYS_PCI_MEMORY_PHYS CONFIG_SYS_SDRAM_BASE |
| #endif |
| |
| #ifndef CONFIG_SYS_PCI_MEMORY_SIZE |
| #define CONFIG_SYS_PCI_MEMORY_SIZE SZ_4G |
| #endif |
| |
| #ifndef CONFIG_SYS_PCI_EP_MEMORY_BASE |
| #define CONFIG_SYS_PCI_EP_MEMORY_BASE CONFIG_SYS_LOAD_ADDR |
| #endif |
| |
| #define PCIE_PHYS_SIZE 0x200000000 |
| #define LS2088A_PCIE_PHYS_SIZE 0x800000000 |
| #define LS2088A_PCIE1_PHYS_ADDR 0x2000000000 |
| |
| /* iATU registers */ |
| #define PCIE_ATU_VIEWPORT 0x900 |
| #define PCIE_ATU_REGION_INBOUND (0x1 << 31) |
| #define PCIE_ATU_REGION_OUTBOUND (0x0 << 31) |
| #define PCIE_ATU_REGION_INDEX0 (0x0 << 0) |
| #define PCIE_ATU_REGION_INDEX1 (0x1 << 0) |
| #define PCIE_ATU_REGION_INDEX2 (0x2 << 0) |
| #define PCIE_ATU_REGION_INDEX3 (0x3 << 0) |
| #define PCIE_ATU_REGION_NUM 6 |
| #define PCIE_ATU_REGION_NUM_SRIOV 24 |
| #define PCIE_ATU_CR1 0x904 |
| #define PCIE_ATU_TYPE_MEM (0x0 << 0) |
| #define PCIE_ATU_TYPE_IO (0x2 << 0) |
| #define PCIE_ATU_TYPE_CFG0 (0x4 << 0) |
| #define PCIE_ATU_TYPE_CFG1 (0x5 << 0) |
| #define PCIE_ATU_FUNC_NUM(pf) ((pf) << 20) |
| #define PCIE_ATU_CR2 0x908 |
| #define PCIE_ATU_ENABLE (0x1 << 31) |
| #define PCIE_ATU_BAR_MODE_ENABLE (0x1 << 30) |
| #define PCIE_ATU_FUNC_NUM_MATCH_EN BIT(19) |
| #define PCIE_ATU_VFBAR_MATCH_MODE_EN BIT(26) |
| #define PCIE_ATU_BAR_NUM(bar) ((bar) << 8) |
| #define PCIE_ATU_LOWER_BASE 0x90C |
| #define PCIE_ATU_UPPER_BASE 0x910 |
| #define PCIE_ATU_LIMIT 0x914 |
| #define PCIE_ATU_LOWER_TARGET 0x918 |
| #define PCIE_ATU_BUS(x) (((x) & 0xff) << 24) |
| #define PCIE_ATU_DEV(x) (((x) & 0x1f) << 19) |
| #define PCIE_ATU_FUNC(x) (((x) & 0x7) << 16) |
| #define PCIE_ATU_UPPER_TARGET 0x91C |
| |
| /* DBI registers */ |
| #define PCIE_SRIOV 0x178 |
| #define PCIE_STRFMR1 0x71c /* Symbol Timer & Filter Mask Register1 */ |
| #define PCIE_DBI_RO_WR_EN BIT(0) |
| #define PCIE_MISC_CONTROL_1_OFF 0x8BC |
| |
| #define PCIE_LINK_CAP 0x7c |
| #define PCIE_LINK_SPEED_MASK 0xf |
| #define PCIE_LINK_WIDTH_MASK 0x3f0 |
| #define PCIE_LINK_STA 0x82 |
| |
| #define LTSSM_STATE_MASK 0x3f |
| #define LTSSM_PCIE_L0 0x11 /* L0 state */ |
| |
| #define PCIE_DBI_SIZE 0x100000 /* 1M */ |
| |
| #define PCIE_LCTRL0_CFG2_ENABLE (1 << 31) |
| #define PCIE_LCTRL0_VF(vf) ((vf) << 22) |
| #define PCIE_LCTRL0_PF(pf) ((pf) << 16) |
| #define PCIE_LCTRL0_VF_ACTIVE (1 << 21) |
| #define PCIE_LCTRL0_VAL(pf, vf) (PCIE_LCTRL0_PF(pf) | \ |
| PCIE_LCTRL0_VF(vf) | \ |
| ((vf) == 0 ? 0 : PCIE_LCTRL0_VF_ACTIVE) | \ |
| PCIE_LCTRL0_CFG2_ENABLE) |
| |
| #define PCIE_NO_SRIOV_BAR_BASE 0x1000 |
| #define FSL_PCIE_EP_MIN_APERTURE 4096 /* 4 Kbytes */ |
| #define PCIE_PF_NUM 2 |
| #define PCIE_VF_NUM 64 |
| #define BAR_NUM 8 |
| |
| #define PCIE_BAR0_SIZE SZ_4K |
| #define PCIE_BAR1_SIZE SZ_8K |
| #define PCIE_BAR2_SIZE SZ_4K |
| #define PCIE_BAR4_SIZE SZ_1M |
| |
| #define PCIE_SRIOV_VFBAR0 0x19C |
| |
| #define PCIE_MASK_OFFSET(flag, pf, off) ((flag) ? 0 : (0x1000 + (off) * (pf))) |
| |
| /* LUT registers */ |
| #define PCIE_LUT_UDR(n) (0x800 + (n) * 8) |
| #define PCIE_LUT_LDR(n) (0x804 + (n) * 8) |
| #define PCIE_LUT_ENABLE (1 << 31) |
| #define PCIE_LUT_ENTRY_COUNT 32 |
| |
| /* PF Controll registers */ |
| #define PCIE_PF_CONFIG 0x14 |
| #define PCIE_PF_VF_CTRL 0x7F8 |
| #define PCIE_PF_DBG 0x7FC |
| #define PCIE_CONFIG_READY (1 << 0) |
| |
| #define PCIE_SRDS_PRTCL(idx) (PCIE1 + (idx)) |
| #define PCIE_SYS_BASE_ADDR 0x3400000 |
| #define PCIE_CCSR_SIZE 0x0100000 |
| |
| /* CS2 */ |
| #define PCIE_CS2_OFFSET 0x1000 /* For PCIe without SR-IOV */ |
| |
| #define SVR_LS102XA 0 |
| #define SVR_VAR_PER_SHIFT 8 |
| #define SVR_LS102XA_MASK 0x700 |
| #define SVR_LS2088A 0x870900 |
| #define SVR_LS2084A 0x870910 |
| #define SVR_LS2048A 0x870920 |
| #define SVR_LS2044A 0x870930 |
| #define SVR_LS2081A 0x870918 |
| #define SVR_LS2041A 0x870914 |
| |
| /* LS1021a PCIE space */ |
| #define LS1021_PCIE_SPACE_OFFSET 0x4000000000ULL |
| #define LS1021_PCIE_SPACE_SIZE 0x0800000000ULL |
| |
| /* LS1021a PEX1/2 Misc Ports Status Register */ |
| #define LS1021_PEXMSCPORTSR(pex_idx) (0x94 + (pex_idx) * 4) |
| #define LS1021_LTSSM_STATE_SHIFT 20 |
| |
| /* LX2160a PF1 offset */ |
| #define LX2160_PCIE_PF1_OFFSET 0x8000 |
| |
| /* layerscape PF1 offset */ |
| #define LS_PCIE_PF1_OFFSET 0x20000 |
| |
| struct ls_pcie { |
| void __iomem *dbi; |
| void __iomem *lut; |
| void __iomem *ctrl; |
| int idx; |
| bool big_endian; |
| int mode; |
| }; |
| |
| struct ls_pcie_rc { |
| struct ls_pcie *pcie; |
| struct list_head list; |
| struct udevice *bus; |
| struct fdt_resource dbi_res; |
| struct fdt_resource lut_res; |
| struct fdt_resource ctrl_res; |
| struct fdt_resource cfg_res; |
| void __iomem *cfg0; |
| void __iomem *cfg1; |
| bool enabled; |
| int next_lut_index; |
| int stream_id_cur; |
| }; |
| |
| struct ls_pcie_ep { |
| struct fdt_resource addr_res; |
| struct ls_pcie *pcie; |
| struct udevice *bus; |
| void __iomem *addr; |
| u32 cfg2_flag; |
| u32 sriov_flag; |
| u32 pf1_offset; |
| u32 num_ib_wins; |
| u32 num_ob_wins; |
| u8 max_functions; |
| }; |
| |
| extern struct list_head ls_pcie_list; |
| |
| unsigned int dbi_readl(struct ls_pcie *pcie, unsigned int offset); |
| void dbi_writel(struct ls_pcie *pcie, unsigned int value, unsigned int offset); |
| unsigned int ctrl_readl(struct ls_pcie *pcie, unsigned int offset); |
| void ctrl_writel(struct ls_pcie *pcie, unsigned int value, unsigned int offset); |
| void ls_pcie_atu_outbound_set(struct ls_pcie *pcie, int idx, int type, |
| u64 phys, u64 bus_addr, u64 size); |
| void ls_pcie_atu_inbound_set(struct ls_pcie *pcie, u32 pf, u32 vf_flag, |
| int type, int idx, int bar, u64 phys); |
| void ls_pcie_dump_atu(struct ls_pcie *pcie, u32 win_num, u32 type); |
| int ls_pcie_link_up(struct ls_pcie *pcie); |
| void ls_pcie_dbi_ro_wr_en(struct ls_pcie *pcie); |
| void ls_pcie_dbi_ro_wr_dis(struct ls_pcie *pcie); |
| |
| #endif /* _PCIE_LAYERSCAPE_H_ */ |