Hou Zhiqiang | a7294ab | 2016-12-13 14:54:16 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2014-2015 Freescale Semiconductor, Inc. |
| 3 | * Layerscape PCIe driver |
| 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0+ |
| 6 | */ |
| 7 | |
| 8 | #ifndef _PCIE_LAYERSCAPE_H_ |
| 9 | #define _PCIE_LAYERSCAPE_H_ |
| 10 | #include <pci.h> |
| 11 | |
| 12 | #ifndef CONFIG_SYS_PCI_MEMORY_BUS |
| 13 | #define CONFIG_SYS_PCI_MEMORY_BUS CONFIG_SYS_SDRAM_BASE |
| 14 | #endif |
| 15 | |
| 16 | #ifndef CONFIG_SYS_PCI_MEMORY_PHYS |
| 17 | #define CONFIG_SYS_PCI_MEMORY_PHYS CONFIG_SYS_SDRAM_BASE |
| 18 | #endif |
| 19 | |
| 20 | #ifndef CONFIG_SYS_PCI_MEMORY_SIZE |
| 21 | #define CONFIG_SYS_PCI_MEMORY_SIZE (2 * 1024 * 1024 * 1024UL) /* 2G */ |
| 22 | #endif |
| 23 | |
| 24 | #ifndef CONFIG_SYS_PCI_EP_MEMORY_BASE |
| 25 | #define CONFIG_SYS_PCI_EP_MEMORY_BASE CONFIG_SYS_LOAD_ADDR |
| 26 | #endif |
| 27 | |
| 28 | /* iATU registers */ |
| 29 | #define PCIE_ATU_VIEWPORT 0x900 |
| 30 | #define PCIE_ATU_REGION_INBOUND (0x1 << 31) |
| 31 | #define PCIE_ATU_REGION_OUTBOUND (0x0 << 31) |
| 32 | #define PCIE_ATU_REGION_INDEX0 (0x0 << 0) |
| 33 | #define PCIE_ATU_REGION_INDEX1 (0x1 << 0) |
| 34 | #define PCIE_ATU_REGION_INDEX2 (0x2 << 0) |
| 35 | #define PCIE_ATU_REGION_INDEX3 (0x3 << 0) |
| 36 | #define PCIE_ATU_REGION_NUM 6 |
| 37 | #define PCIE_ATU_CR1 0x904 |
| 38 | #define PCIE_ATU_TYPE_MEM (0x0 << 0) |
| 39 | #define PCIE_ATU_TYPE_IO (0x2 << 0) |
| 40 | #define PCIE_ATU_TYPE_CFG0 (0x4 << 0) |
| 41 | #define PCIE_ATU_TYPE_CFG1 (0x5 << 0) |
| 42 | #define PCIE_ATU_CR2 0x908 |
| 43 | #define PCIE_ATU_ENABLE (0x1 << 31) |
| 44 | #define PCIE_ATU_BAR_MODE_ENABLE (0x1 << 30) |
| 45 | #define PCIE_ATU_BAR_NUM(bar) ((bar) << 8) |
| 46 | #define PCIE_ATU_LOWER_BASE 0x90C |
| 47 | #define PCIE_ATU_UPPER_BASE 0x910 |
| 48 | #define PCIE_ATU_LIMIT 0x914 |
| 49 | #define PCIE_ATU_LOWER_TARGET 0x918 |
| 50 | #define PCIE_ATU_BUS(x) (((x) & 0xff) << 24) |
| 51 | #define PCIE_ATU_DEV(x) (((x) & 0x1f) << 19) |
| 52 | #define PCIE_ATU_FUNC(x) (((x) & 0x7) << 16) |
| 53 | #define PCIE_ATU_UPPER_TARGET 0x91C |
| 54 | |
| 55 | /* DBI registers */ |
| 56 | #define PCIE_SRIOV 0x178 |
| 57 | #define PCIE_STRFMR1 0x71c /* Symbol Timer & Filter Mask Register1 */ |
| 58 | #define PCIE_DBI_RO_WR_EN 0x8bc |
| 59 | |
| 60 | #define PCIE_LINK_CAP 0x7c |
| 61 | #define PCIE_LINK_SPEED_MASK 0xf |
| 62 | #define PCIE_LINK_WIDTH_MASK 0x3f0 |
| 63 | #define PCIE_LINK_STA 0x82 |
| 64 | |
| 65 | #define LTSSM_STATE_MASK 0x3f |
| 66 | #define LTSSM_PCIE_L0 0x11 /* L0 state */ |
| 67 | |
| 68 | #define PCIE_DBI_SIZE 0x100000 /* 1M */ |
| 69 | |
| 70 | #define PCIE_LCTRL0_CFG2_ENABLE (1 << 31) |
| 71 | #define PCIE_LCTRL0_VF(vf) ((vf) << 22) |
| 72 | #define PCIE_LCTRL0_PF(pf) ((pf) << 16) |
| 73 | #define PCIE_LCTRL0_VF_ACTIVE (1 << 21) |
| 74 | #define PCIE_LCTRL0_VAL(pf, vf) (PCIE_LCTRL0_PF(pf) | \ |
| 75 | PCIE_LCTRL0_VF(vf) | \ |
| 76 | ((vf) == 0 ? 0 : PCIE_LCTRL0_VF_ACTIVE) | \ |
| 77 | PCIE_LCTRL0_CFG2_ENABLE) |
| 78 | |
| 79 | #define PCIE_NO_SRIOV_BAR_BASE 0x1000 |
| 80 | |
| 81 | #define PCIE_PF_NUM 2 |
| 82 | #define PCIE_VF_NUM 64 |
| 83 | |
| 84 | #define PCIE_BAR0_SIZE (4 * 1024) /* 4K */ |
| 85 | #define PCIE_BAR1_SIZE (8 * 1024) /* 8K for MSIX */ |
| 86 | #define PCIE_BAR2_SIZE (4 * 1024) /* 4K */ |
| 87 | #define PCIE_BAR4_SIZE (1 * 1024 * 1024) /* 1M */ |
| 88 | |
| 89 | struct ls_pcie { |
| 90 | int idx; |
| 91 | void __iomem *dbi; |
| 92 | void __iomem *va_cfg0; |
| 93 | void __iomem *va_cfg1; |
| 94 | int next_lut_index; |
| 95 | struct pci_controller hose; |
| 96 | }; |
| 97 | |
| 98 | struct ls_pcie_info { |
| 99 | unsigned long regs; |
| 100 | int pci_num; |
| 101 | u64 phys_base; |
| 102 | u64 cfg0_phys; |
| 103 | u64 cfg0_size; |
| 104 | u64 cfg1_phys; |
| 105 | u64 cfg1_size; |
| 106 | u64 mem_bus; |
| 107 | u64 mem_phys; |
| 108 | u64 mem_size; |
| 109 | u64 io_bus; |
| 110 | u64 io_phys; |
| 111 | u64 io_size; |
| 112 | }; |
| 113 | |
| 114 | #define SET_LS_PCIE_INFO(x, num) \ |
| 115 | { \ |
| 116 | x.regs = CONFIG_SYS_PCIE##num##_ADDR; \ |
| 117 | x.phys_base = CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ |
| 118 | x.cfg0_phys = CONFIG_SYS_PCIE_CFG0_PHYS_OFF + \ |
| 119 | CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ |
| 120 | x.cfg0_size = CONFIG_SYS_PCIE_CFG0_SIZE; \ |
| 121 | x.cfg1_phys = CONFIG_SYS_PCIE_CFG1_PHYS_OFF + \ |
| 122 | CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ |
| 123 | x.cfg1_size = CONFIG_SYS_PCIE_CFG1_SIZE; \ |
| 124 | x.mem_bus = CONFIG_SYS_PCIE_MEM_BUS; \ |
| 125 | x.mem_phys = CONFIG_SYS_PCIE_MEM_PHYS_OFF + \ |
| 126 | CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ |
| 127 | x.mem_size = CONFIG_SYS_PCIE_MEM_SIZE; \ |
| 128 | x.io_bus = CONFIG_SYS_PCIE_IO_BUS; \ |
| 129 | x.io_phys = CONFIG_SYS_PCIE_IO_PHYS_OFF + \ |
| 130 | CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ |
| 131 | x.io_size = CONFIG_SYS_PCIE_IO_SIZE; \ |
| 132 | x.pci_num = num; \ |
| 133 | } |
| 134 | |
| 135 | #endif /* _PCIE_LAYERSCAPE_H_ */ |