Jagan Teki | 0226247 | 2020-05-09 22:26:21 +0530 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 2 | /* |
| 3 | * Rockchip PCIe Headers |
| 4 | * |
| 5 | * Copyright (c) 2016 Rockchip, Inc. |
| 6 | * Copyright (c) 2020 Amarula Solutions(India) |
| 7 | * Copyright (c) 2020 Jagan Teki <jagan@amarulasolutions.com> |
| 8 | * Copyright (c) 2019 Patrick Wildt <patrick@blueri.se> |
| 9 | * |
| 10 | */ |
| 11 | |
| 12 | #define HIWORD_UPDATE(mask, val) (((mask) << 16) | (val)) |
| 13 | #define HIWORD_UPDATE_BIT(val) HIWORD_UPDATE(val, val) |
| 14 | |
| 15 | #define ENCODE_LANES(x) ((((x) >> 1) & 3) << 4) |
| 16 | #define PCIE_CLIENT_BASE 0x0 |
| 17 | #define PCIE_CLIENT_CONFIG (PCIE_CLIENT_BASE + 0x00) |
| 18 | #define PCIE_CLIENT_CONF_ENABLE HIWORD_UPDATE_BIT(0x0001) |
| 19 | #define PCIE_CLIENT_LINK_TRAIN_ENABLE HIWORD_UPDATE_BIT(0x0002) |
| 20 | #define PCIE_CLIENT_MODE_RC HIWORD_UPDATE_BIT(0x0040) |
| 21 | #define PCIE_CLIENT_GEN_SEL_1 HIWORD_UPDATE(0x0080, 0) |
| 22 | #define PCIE_CLIENT_BASIC_STATUS1 0x0048 |
| 23 | #define PCIE_CLIENT_LINK_STATUS_UP GENMASK(21, 20) |
| 24 | #define PCIE_CLIENT_LINK_STATUS_MASK GENMASK(21, 20) |
| 25 | #define PCIE_LINK_UP(x) \ |
| 26 | (((x) & PCIE_CLIENT_LINK_STATUS_MASK) == PCIE_CLIENT_LINK_STATUS_UP) |
| 27 | #define PCIE_RC_NORMAL_BASE 0x800000 |
| 28 | #define PCIE_LM_BASE 0x900000 |
| 29 | #define PCIE_LM_VENDOR_ID (PCIE_LM_BASE + 0x44) |
| 30 | #define PCIE_LM_VENDOR_ROCKCHIP 0x1d87 |
| 31 | #define PCIE_LM_RCBAR (PCIE_LM_BASE + 0x300) |
| 32 | #define PCIE_LM_RCBARPIE BIT(19) |
| 33 | #define PCIE_LM_RCBARPIS BIT(20) |
| 34 | #define PCIE_RC_BASE 0xa00000 |
| 35 | #define PCIE_RC_CONFIG_DCR (PCIE_RC_BASE + 0x0c4) |
| 36 | #define PCIE_RC_CONFIG_DCR_CSPL_SHIFT 18 |
| 37 | #define PCIE_RC_CONFIG_DCR_CPLS_SHIFT 26 |
| 38 | #define PCIE_RC_PCIE_LCAP (PCIE_RC_BASE + 0x0cc) |
| 39 | #define PCIE_RC_PCIE_LCAP_APMS_L0S BIT(10) |
| 40 | #define PCIE_ATR_BASE 0xc00000 |
| 41 | #define PCIE_ATR_OB_ADDR0(i) (PCIE_ATR_BASE + 0x000 + (i) * 0x20) |
| 42 | #define PCIE_ATR_OB_ADDR1(i) (PCIE_ATR_BASE + 0x004 + (i) * 0x20) |
| 43 | #define PCIE_ATR_OB_DESC0(i) (PCIE_ATR_BASE + 0x008 + (i) * 0x20) |
| 44 | #define PCIE_ATR_OB_DESC1(i) (PCIE_ATR_BASE + 0x00c + (i) * 0x20) |
| 45 | #define PCIE_ATR_IB_ADDR0(i) (PCIE_ATR_BASE + 0x800 + (i) * 0x8) |
| 46 | #define PCIE_ATR_IB_ADDR1(i) (PCIE_ATR_BASE + 0x804 + (i) * 0x8) |
| 47 | #define PCIE_ATR_HDR_MEM 0x2 |
| 48 | #define PCIE_ATR_HDR_IO 0x6 |
| 49 | #define PCIE_ATR_HDR_CFG_TYPE0 0xa |
| 50 | #define PCIE_ATR_HDR_CFG_TYPE1 0xb |
| 51 | #define PCIE_ATR_HDR_RID BIT(23) |
| 52 | |
| 53 | #define PCIE_ATR_OB_REGION0_SIZE (32 * 1024 * 1024) |
| 54 | #define PCIE_ATR_OB_REGION_SIZE (1 * 1024 * 1024) |
| 55 | |
Jagan Teki | 5f14232 | 2020-05-09 22:26:22 +0530 | [diff] [blame] | 56 | /* |
| 57 | * The higher 16-bit of this register is used for write protection |
| 58 | * only if BIT(x + 16) set to 1 the BIT(x) can be written. |
| 59 | */ |
| 60 | #define HIWORD_UPDATE_MASK(val, mask, shift) \ |
| 61 | ((val) << (shift) | (mask) << ((shift) + 16)) |
| 62 | |
| 63 | #define PHY_CFG_DATA_SHIFT 7 |
| 64 | #define PHY_CFG_ADDR_SHIFT 1 |
| 65 | #define PHY_CFG_DATA_MASK 0xf |
| 66 | #define PHY_CFG_ADDR_MASK 0x3f |
| 67 | #define PHY_CFG_RD_MASK 0x3ff |
| 68 | #define PHY_CFG_WR_ENABLE 1 |
| 69 | #define PHY_CFG_WR_DISABLE 1 |
| 70 | #define PHY_CFG_WR_SHIFT 0 |
| 71 | #define PHY_CFG_WR_MASK 1 |
| 72 | #define PHY_CFG_PLL_LOCK 0x10 |
| 73 | #define PHY_CFG_CLK_TEST 0x10 |
| 74 | #define PHY_CFG_CLK_SCC 0x12 |
| 75 | #define PHY_CFG_SEPE_RATE BIT(3) |
| 76 | #define PHY_CFG_PLL_100M BIT(3) |
| 77 | #define PHY_PLL_LOCKED BIT(9) |
| 78 | #define PHY_PLL_OUTPUT BIT(10) |
| 79 | #define PHY_LANE_IDLE_OFF 0x1 |
| 80 | #define PHY_LANE_IDLE_MASK 0x1 |
| 81 | #define PHY_LANE_IDLE_A_SHIFT 3 |
| 82 | #define PHY_LANE_IDLE_B_SHIFT 4 |
| 83 | #define PHY_LANE_IDLE_C_SHIFT 5 |
| 84 | #define PHY_LANE_IDLE_D_SHIFT 6 |
| 85 | |
| 86 | #define PCIE_PHY_CONF 0xe220 |
| 87 | #define PCIE_PHY_STATUS 0xe2a4 |
| 88 | #define PCIE_PHY_LANEOFF 0xe214 |
| 89 | |
| 90 | struct rockchip_pcie_phy { |
| 91 | void *reg_base; |
| 92 | struct clk refclk; |
| 93 | struct reset_ctl phy_rst; |
| 94 | struct rockchip_pcie_phy_ops *ops; |
| 95 | }; |
| 96 | |
| 97 | struct rockchip_pcie_phy_ops { |
| 98 | int (*init)(struct rockchip_pcie_phy *phy); |
| 99 | int (*exit)(struct rockchip_pcie_phy *phy); |
| 100 | int (*power_on)(struct rockchip_pcie_phy *phy); |
| 101 | int (*power_off)(struct rockchip_pcie_phy *phy); |
| 102 | }; |
| 103 | |
Jagan Teki | 0226247 | 2020-05-09 22:26:21 +0530 | [diff] [blame] | 104 | struct rockchip_pcie { |
| 105 | fdt_addr_t axi_base; |
| 106 | fdt_addr_t apb_base; |
| 107 | int first_busno; |
| 108 | struct udevice *dev; |
Jagan Teki | 5f14232 | 2020-05-09 22:26:22 +0530 | [diff] [blame] | 109 | struct rockchip_pcie_phy rk_phy; |
| 110 | struct rockchip_pcie_phy *phy; |
Jagan Teki | 0226247 | 2020-05-09 22:26:21 +0530 | [diff] [blame] | 111 | |
| 112 | /* resets */ |
| 113 | struct reset_ctl core_rst; |
| 114 | struct reset_ctl mgmt_rst; |
| 115 | struct reset_ctl mgmt_sticky_rst; |
| 116 | struct reset_ctl pipe_rst; |
| 117 | struct reset_ctl pm_rst; |
| 118 | struct reset_ctl pclk_rst; |
| 119 | struct reset_ctl aclk_rst; |
| 120 | |
| 121 | /* gpio */ |
| 122 | struct gpio_desc ep_gpio; |
| 123 | |
| 124 | /* vpcie regulators */ |
| 125 | struct udevice *vpcie12v; |
| 126 | struct udevice *vpcie3v3; |
| 127 | struct udevice *vpcie1v8; |
| 128 | struct udevice *vpcie0v9; |
| 129 | }; |
Jagan Teki | 5f14232 | 2020-05-09 22:26:22 +0530 | [diff] [blame] | 130 | |
| 131 | int rockchip_pcie_phy_get(struct udevice *dev); |
| 132 | |
| 133 | inline struct rockchip_pcie_phy *pcie_get_phy(struct rockchip_pcie *pcie) |
| 134 | { |
| 135 | return pcie->phy; |
| 136 | } |
| 137 | |
| 138 | inline |
| 139 | struct rockchip_pcie_phy_ops *phy_get_ops(struct rockchip_pcie_phy *phy) |
| 140 | { |
| 141 | return (struct rockchip_pcie_phy_ops *)phy->ops; |
| 142 | } |