Minghuan Lian | da41902 | 2014-10-31 13:43:44 +0800 | [diff] [blame] | 1 | /* |
Minghuan Lian | e4e8cb7 | 2015-01-21 17:29:20 +0800 | [diff] [blame] | 2 | * Copyright 2014-2015 Freescale Semiconductor, Inc. |
Minghuan Lian | da41902 | 2014-10-31 13:43:44 +0800 | [diff] [blame] | 3 | * Layerscape PCIe driver |
| 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0+ |
| 6 | */ |
| 7 | |
| 8 | #include <common.h> |
| 9 | #include <asm/arch/fsl_serdes.h> |
| 10 | #include <pci.h> |
| 11 | #include <asm/io.h> |
Minghuan Lian | e4e8cb7 | 2015-01-21 17:29:20 +0800 | [diff] [blame] | 12 | #include <errno.h> |
| 13 | #include <malloc.h> |
Minghuan Lian | da41902 | 2014-10-31 13:43:44 +0800 | [diff] [blame] | 14 | #include <asm/pcie_layerscape.h> |
| 15 | |
Minghuan Lian | e4e8cb7 | 2015-01-21 17:29:20 +0800 | [diff] [blame] | 16 | #ifndef CONFIG_SYS_PCI_MEMORY_BUS |
| 17 | #define CONFIG_SYS_PCI_MEMORY_BUS CONFIG_SYS_SDRAM_BASE |
| 18 | #endif |
| 19 | |
| 20 | #ifndef CONFIG_SYS_PCI_MEMORY_PHYS |
| 21 | #define CONFIG_SYS_PCI_MEMORY_PHYS CONFIG_SYS_SDRAM_BASE |
| 22 | #endif |
| 23 | |
| 24 | #ifndef CONFIG_SYS_PCI_MEMORY_SIZE |
| 25 | #define CONFIG_SYS_PCI_MEMORY_SIZE (2 * 1024 * 1024 * 1024UL) /* 2G */ |
| 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_CR1 0x904 |
| 37 | #define PCIE_ATU_TYPE_MEM (0x0 << 0) |
| 38 | #define PCIE_ATU_TYPE_IO (0x2 << 0) |
| 39 | #define PCIE_ATU_TYPE_CFG0 (0x4 << 0) |
| 40 | #define PCIE_ATU_TYPE_CFG1 (0x5 << 0) |
| 41 | #define PCIE_ATU_CR2 0x908 |
| 42 | #define PCIE_ATU_ENABLE (0x1 << 31) |
| 43 | #define PCIE_ATU_BAR_MODE_ENABLE (0x1 << 30) |
| 44 | #define PCIE_ATU_LOWER_BASE 0x90C |
| 45 | #define PCIE_ATU_UPPER_BASE 0x910 |
| 46 | #define PCIE_ATU_LIMIT 0x914 |
| 47 | #define PCIE_ATU_LOWER_TARGET 0x918 |
| 48 | #define PCIE_ATU_BUS(x) (((x) & 0xff) << 24) |
| 49 | #define PCIE_ATU_DEV(x) (((x) & 0x1f) << 19) |
| 50 | #define PCIE_ATU_FUNC(x) (((x) & 0x7) << 16) |
| 51 | #define PCIE_ATU_UPPER_TARGET 0x91C |
| 52 | |
| 53 | #define PCIE_LINK_CAP 0x7c |
| 54 | #define PCIE_LINK_SPEED_MASK 0xf |
| 55 | #define PCIE_LINK_STA 0x82 |
| 56 | |
| 57 | #define PCIE_DBI_SIZE (4 * 1024) /* 4K */ |
| 58 | |
| 59 | struct ls_pcie { |
| 60 | int idx; |
| 61 | void __iomem *dbi; |
| 62 | void __iomem *va_cfg0; |
| 63 | void __iomem *va_cfg1; |
| 64 | struct pci_controller hose; |
| 65 | }; |
| 66 | |
| 67 | struct ls_pcie_info { |
| 68 | unsigned long regs; |
| 69 | int pci_num; |
| 70 | u64 cfg0_phys; |
| 71 | u64 cfg0_size; |
| 72 | u64 cfg1_phys; |
| 73 | u64 cfg1_size; |
| 74 | u64 mem_bus; |
| 75 | u64 mem_phys; |
| 76 | u64 mem_size; |
| 77 | u64 io_bus; |
| 78 | u64 io_phys; |
| 79 | u64 io_size; |
| 80 | }; |
| 81 | |
| 82 | #define SET_LS_PCIE_INFO(x, num) \ |
| 83 | { \ |
| 84 | x.regs = CONFIG_SYS_PCIE##num##_ADDR; \ |
| 85 | x.cfg0_phys = CONFIG_SYS_PCIE_CFG0_PHYS_OFF + \ |
| 86 | CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ |
| 87 | x.cfg0_size = CONFIG_SYS_PCIE_CFG0_SIZE; \ |
| 88 | x.cfg1_phys = CONFIG_SYS_PCIE_CFG1_PHYS_OFF + \ |
| 89 | CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ |
| 90 | x.cfg1_size = CONFIG_SYS_PCIE_CFG1_SIZE; \ |
| 91 | x.mem_bus = CONFIG_SYS_PCIE_MEM_BUS; \ |
| 92 | x.mem_phys = CONFIG_SYS_PCIE_MEM_PHYS_OFF + \ |
| 93 | CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ |
| 94 | x.mem_size = CONFIG_SYS_PCIE_MEM_SIZE; \ |
| 95 | x.io_bus = CONFIG_SYS_PCIE_IO_BUS; \ |
| 96 | x.io_phys = CONFIG_SYS_PCIE_IO_PHYS_OFF + \ |
| 97 | CONFIG_SYS_PCIE##num##_PHYS_ADDR; \ |
| 98 | x.io_size = CONFIG_SYS_PCIE_IO_SIZE; \ |
| 99 | x.pci_num = num; \ |
| 100 | } |
| 101 | |
| 102 | #ifdef CONFIG_LS102XA |
| 103 | #include <asm/arch/immap_ls102xa.h> |
| 104 | |
| 105 | /* PEX1/2 Misc Ports Status Register */ |
| 106 | #define LTSSM_STATE_SHIFT 20 |
| 107 | #define LTSSM_STATE_MASK 0x3f |
| 108 | #define LTSSM_PCIE_L0 0x11 /* L0 state */ |
| 109 | |
| 110 | static int ls_pcie_link_state(struct ls_pcie *pcie) |
| 111 | { |
| 112 | u32 state; |
| 113 | struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR; |
| 114 | |
| 115 | state = in_be32(&scfg->pexmscportsr[pcie->idx]); |
| 116 | state = (state >> LTSSM_STATE_SHIFT) & LTSSM_STATE_MASK; |
| 117 | if (state < LTSSM_PCIE_L0) { |
| 118 | debug("....PCIe link error. LTSSM=0x%02x.\n", state); |
| 119 | return 0; |
| 120 | } |
| 121 | |
| 122 | return 1; |
| 123 | } |
| 124 | #else |
| 125 | #define PCIE_LDBG 0x7FC |
| 126 | |
| 127 | static int ls_pcie_link_state(struct ls_pcie *pcie) |
| 128 | { |
| 129 | u32 state; |
| 130 | |
| 131 | state = readl(pcie->dbi + PCIE_LDBG); |
| 132 | if (state) |
| 133 | return 1; |
| 134 | |
| 135 | debug("....PCIe link error.\n"); |
| 136 | return 0; |
| 137 | } |
| 138 | #endif |
| 139 | |
| 140 | static int ls_pcie_link_up(struct ls_pcie *pcie) |
| 141 | { |
| 142 | int state; |
| 143 | u32 cap; |
| 144 | |
| 145 | state = ls_pcie_link_state(pcie); |
| 146 | if (state) |
| 147 | return state; |
| 148 | |
| 149 | /* Try to download speed to gen1 */ |
| 150 | cap = readl(pcie->dbi + PCIE_LINK_CAP); |
| 151 | writel((cap & (~PCIE_LINK_SPEED_MASK)) | 1, pcie->dbi + PCIE_LINK_CAP); |
| 152 | udelay(2000); |
| 153 | state = ls_pcie_link_state(pcie); |
| 154 | if (state) |
| 155 | return state; |
| 156 | |
| 157 | writel(cap, pcie->dbi + PCIE_LINK_CAP); |
| 158 | |
| 159 | return 0; |
| 160 | } |
| 161 | |
| 162 | static void ls_pcie_cfg0_set_busdev(struct ls_pcie *pcie, u32 busdev) |
| 163 | { |
| 164 | writel(PCIE_ATU_REGION_OUTBOUND | PCIE_ATU_REGION_INDEX0, |
| 165 | pcie->dbi + PCIE_ATU_VIEWPORT); |
| 166 | writel(busdev, pcie->dbi + PCIE_ATU_LOWER_TARGET); |
| 167 | } |
| 168 | |
| 169 | static void ls_pcie_cfg1_set_busdev(struct ls_pcie *pcie, u32 busdev) |
| 170 | { |
| 171 | writel(PCIE_ATU_REGION_OUTBOUND | PCIE_ATU_REGION_INDEX1, |
| 172 | pcie->dbi + PCIE_ATU_VIEWPORT); |
| 173 | writel(busdev, pcie->dbi + PCIE_ATU_LOWER_TARGET); |
| 174 | } |
| 175 | |
| 176 | static void ls_pcie_iatu_outbound_set(struct ls_pcie *pcie, int idx, int type, |
| 177 | u64 phys, u64 bus_addr, pci_size_t size) |
| 178 | { |
| 179 | writel(PCIE_ATU_REGION_OUTBOUND | idx, pcie->dbi + PCIE_ATU_VIEWPORT); |
| 180 | writel((u32)phys, pcie->dbi + PCIE_ATU_LOWER_BASE); |
| 181 | writel(phys >> 32, pcie->dbi + PCIE_ATU_UPPER_BASE); |
| 182 | writel(phys + size - 1, pcie->dbi + PCIE_ATU_LIMIT); |
| 183 | writel((u32)bus_addr, pcie->dbi + PCIE_ATU_LOWER_TARGET); |
| 184 | writel(bus_addr >> 32, pcie->dbi + PCIE_ATU_UPPER_TARGET); |
| 185 | writel(type, pcie->dbi + PCIE_ATU_CR1); |
| 186 | writel(PCIE_ATU_ENABLE, pcie->dbi + PCIE_ATU_CR2); |
| 187 | } |
| 188 | |
| 189 | static void ls_pcie_setup_atu(struct ls_pcie *pcie, struct ls_pcie_info *info) |
| 190 | { |
| 191 | #ifdef DEBUG |
| 192 | int i; |
| 193 | #endif |
| 194 | |
| 195 | /* ATU 0 : OUTBOUND : CFG0 */ |
| 196 | ls_pcie_iatu_outbound_set(pcie, PCIE_ATU_REGION_INDEX0, |
| 197 | PCIE_ATU_TYPE_CFG0, |
| 198 | info->cfg0_phys, |
| 199 | 0, |
| 200 | info->cfg0_size); |
| 201 | /* ATU 1 : OUTBOUND : CFG1 */ |
| 202 | ls_pcie_iatu_outbound_set(pcie, PCIE_ATU_REGION_INDEX1, |
| 203 | PCIE_ATU_TYPE_CFG1, |
| 204 | info->cfg1_phys, |
| 205 | 0, |
| 206 | info->cfg1_size); |
| 207 | /* ATU 2 : OUTBOUND : MEM */ |
| 208 | ls_pcie_iatu_outbound_set(pcie, PCIE_ATU_REGION_INDEX2, |
| 209 | PCIE_ATU_TYPE_MEM, |
| 210 | info->mem_phys, |
| 211 | info->mem_bus, |
| 212 | info->mem_size); |
| 213 | /* ATU 3 : OUTBOUND : IO */ |
| 214 | ls_pcie_iatu_outbound_set(pcie, PCIE_ATU_REGION_INDEX3, |
| 215 | PCIE_ATU_TYPE_IO, |
| 216 | info->io_phys, |
| 217 | info->io_bus, |
| 218 | info->io_size); |
| 219 | |
| 220 | #ifdef DEBUG |
| 221 | for (i = 0; i <= PCIE_ATU_REGION_INDEX3; i++) { |
| 222 | writel(PCIE_ATU_REGION_OUTBOUND | i, |
| 223 | pcie->dbi + PCIE_ATU_VIEWPORT); |
| 224 | debug("iATU%d:\n", i); |
| 225 | debug("\tLOWER PHYS 0x%08x\n", |
| 226 | readl(pcie->dbi + PCIE_ATU_LOWER_BASE)); |
| 227 | debug("\tUPPER PHYS 0x%08x\n", |
| 228 | readl(pcie->dbi + PCIE_ATU_UPPER_BASE)); |
| 229 | debug("\tLOWER BUS 0x%08x\n", |
| 230 | readl(pcie->dbi + PCIE_ATU_LOWER_TARGET)); |
| 231 | debug("\tUPPER BUS 0x%08x\n", |
| 232 | readl(pcie->dbi + PCIE_ATU_UPPER_TARGET)); |
| 233 | debug("\tLIMIT 0x%08x\n", |
| 234 | readl(pcie->dbi + PCIE_ATU_LIMIT)); |
| 235 | debug("\tCR1 0x%08x\n", |
| 236 | readl(pcie->dbi + PCIE_ATU_CR1)); |
| 237 | debug("\tCR2 0x%08x\n", |
| 238 | readl(pcie->dbi + PCIE_ATU_CR2)); |
| 239 | } |
| 240 | #endif |
| 241 | } |
| 242 | |
| 243 | int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev) |
| 244 | { |
| 245 | /* Do not skip controller */ |
| 246 | return 0; |
| 247 | } |
| 248 | |
| 249 | static int ls_pcie_addr_valid(struct pci_controller *hose, pci_dev_t d) |
| 250 | { |
| 251 | if (PCI_DEV(d) > 0) |
| 252 | return -EINVAL; |
| 253 | |
| 254 | return 0; |
| 255 | } |
| 256 | |
| 257 | static int ls_pcie_read_config(struct pci_controller *hose, pci_dev_t d, |
| 258 | int where, u32 *val) |
| 259 | { |
| 260 | struct ls_pcie *pcie = hose->priv_data; |
| 261 | u32 busdev, *addr; |
| 262 | |
| 263 | if (ls_pcie_addr_valid(hose, d)) { |
| 264 | *val = 0xffffffff; |
| 265 | return -EINVAL; |
| 266 | } |
| 267 | |
| 268 | if (PCI_BUS(d) == hose->first_busno) { |
| 269 | addr = pcie->dbi + (where & ~0x3); |
| 270 | } else { |
| 271 | busdev = PCIE_ATU_BUS(PCI_BUS(d)) | |
| 272 | PCIE_ATU_DEV(PCI_DEV(d)) | |
| 273 | PCIE_ATU_FUNC(PCI_FUNC(d)); |
| 274 | |
| 275 | if (PCI_BUS(d) == hose->first_busno + 1) { |
| 276 | ls_pcie_cfg0_set_busdev(pcie, busdev); |
| 277 | addr = pcie->va_cfg0 + (where & ~0x3); |
| 278 | } else { |
| 279 | ls_pcie_cfg1_set_busdev(pcie, busdev); |
| 280 | addr = pcie->va_cfg1 + (where & ~0x3); |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | *val = readl(addr); |
| 285 | |
| 286 | return 0; |
| 287 | } |
| 288 | |
| 289 | static int ls_pcie_write_config(struct pci_controller *hose, pci_dev_t d, |
| 290 | int where, u32 val) |
| 291 | { |
| 292 | struct ls_pcie *pcie = hose->priv_data; |
| 293 | u32 busdev, *addr; |
| 294 | |
| 295 | if (ls_pcie_addr_valid(hose, d)) |
| 296 | return -EINVAL; |
| 297 | |
| 298 | if (PCI_BUS(d) == hose->first_busno) { |
| 299 | addr = pcie->dbi + (where & ~0x3); |
| 300 | } else { |
| 301 | busdev = PCIE_ATU_BUS(PCI_BUS(d)) | |
| 302 | PCIE_ATU_DEV(PCI_DEV(d)) | |
| 303 | PCIE_ATU_FUNC(PCI_FUNC(d)); |
| 304 | |
| 305 | if (PCI_BUS(d) == hose->first_busno + 1) { |
| 306 | ls_pcie_cfg0_set_busdev(pcie, busdev); |
| 307 | addr = pcie->va_cfg0 + (where & ~0x3); |
| 308 | } else { |
| 309 | ls_pcie_cfg1_set_busdev(pcie, busdev); |
| 310 | addr = pcie->va_cfg1 + (where & ~0x3); |
| 311 | } |
| 312 | } |
| 313 | |
| 314 | writel(val, addr); |
| 315 | |
| 316 | return 0; |
| 317 | } |
| 318 | |
| 319 | static void ls_pcie_setup_ctrl(struct ls_pcie *pcie, |
| 320 | struct ls_pcie_info *info) |
| 321 | { |
| 322 | struct pci_controller *hose = &pcie->hose; |
| 323 | pci_dev_t dev = PCI_BDF(hose->first_busno, 0, 0); |
| 324 | |
| 325 | ls_pcie_setup_atu(pcie, info); |
| 326 | |
| 327 | pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_0, 0); |
| 328 | |
| 329 | /* program correct class for RC */ |
| 330 | pci_hose_write_config_word(hose, dev, PCI_CLASS_DEVICE, |
| 331 | PCI_CLASS_BRIDGE_PCI); |
| 332 | } |
| 333 | |
| 334 | int ls_pcie_init_ctrl(int busno, enum srds_prtcl dev, struct ls_pcie_info *info) |
| 335 | { |
| 336 | struct ls_pcie *pcie; |
| 337 | struct pci_controller *hose; |
| 338 | int num = dev - PCIE1; |
| 339 | pci_dev_t pdev = PCI_BDF(busno, 0, 0); |
| 340 | int i, linkup, ep_mode; |
| 341 | u8 header_type; |
| 342 | u16 temp16; |
| 343 | |
| 344 | if (!is_serdes_configured(dev)) { |
| 345 | printf("PCIe%d: disabled\n", num + 1); |
| 346 | return busno; |
| 347 | } |
| 348 | |
| 349 | pcie = malloc(sizeof(*pcie)); |
| 350 | if (!pcie) |
| 351 | return busno; |
| 352 | memset(pcie, 0, sizeof(*pcie)); |
| 353 | |
| 354 | hose = &pcie->hose; |
| 355 | hose->priv_data = pcie; |
| 356 | hose->first_busno = busno; |
| 357 | pcie->idx = num; |
| 358 | pcie->dbi = map_physmem(info->regs, PCIE_DBI_SIZE, MAP_NOCACHE); |
| 359 | pcie->va_cfg0 = map_physmem(info->cfg0_phys, |
| 360 | info->cfg0_size, |
| 361 | MAP_NOCACHE); |
| 362 | pcie->va_cfg1 = map_physmem(info->cfg1_phys, |
| 363 | info->cfg1_size, |
| 364 | MAP_NOCACHE); |
| 365 | |
| 366 | /* outbound memory */ |
| 367 | pci_set_region(&hose->regions[0], |
| 368 | (pci_size_t)info->mem_bus, |
| 369 | (phys_size_t)info->mem_phys, |
| 370 | (pci_size_t)info->mem_size, |
| 371 | PCI_REGION_MEM); |
| 372 | |
| 373 | /* outbound io */ |
| 374 | pci_set_region(&hose->regions[1], |
| 375 | (pci_size_t)info->io_bus, |
| 376 | (phys_size_t)info->io_phys, |
| 377 | (pci_size_t)info->io_size, |
| 378 | PCI_REGION_IO); |
| 379 | |
| 380 | /* System memory space */ |
| 381 | pci_set_region(&hose->regions[2], |
| 382 | CONFIG_SYS_PCI_MEMORY_BUS, |
| 383 | CONFIG_SYS_PCI_MEMORY_PHYS, |
| 384 | CONFIG_SYS_PCI_MEMORY_SIZE, |
| 385 | PCI_REGION_SYS_MEMORY); |
| 386 | |
| 387 | hose->region_count = 3; |
| 388 | |
| 389 | for (i = 0; i < hose->region_count; i++) |
| 390 | debug("PCI reg:%d %016llx:%016llx %016llx %08lx\n", |
| 391 | i, |
| 392 | (u64)hose->regions[i].phys_start, |
| 393 | (u64)hose->regions[i].bus_start, |
| 394 | (u64)hose->regions[i].size, |
| 395 | hose->regions[i].flags); |
| 396 | |
| 397 | pci_set_ops(hose, |
| 398 | pci_hose_read_config_byte_via_dword, |
| 399 | pci_hose_read_config_word_via_dword, |
| 400 | ls_pcie_read_config, |
| 401 | pci_hose_write_config_byte_via_dword, |
| 402 | pci_hose_write_config_word_via_dword, |
| 403 | ls_pcie_write_config); |
| 404 | |
| 405 | pci_hose_read_config_byte(hose, pdev, PCI_HEADER_TYPE, &header_type); |
| 406 | ep_mode = (header_type & 0x7f) == PCI_HEADER_TYPE_NORMAL; |
| 407 | printf("PCIe%u: %s ", info->pci_num, |
| 408 | ep_mode ? "Endpoint" : "Root Complex"); |
| 409 | |
| 410 | linkup = ls_pcie_link_up(pcie); |
| 411 | |
| 412 | if (!linkup) { |
| 413 | /* Let the user know there's no PCIe link */ |
| 414 | printf("no link, regs @ 0x%lx\n", info->regs); |
| 415 | hose->last_busno = hose->first_busno; |
| 416 | return busno; |
| 417 | } |
| 418 | |
| 419 | /* Print the negotiated PCIe link width */ |
| 420 | pci_hose_read_config_word(hose, dev, PCIE_LINK_STA, &temp16); |
| 421 | printf("x%d gen%d, regs @ 0x%lx\n", (temp16 & 0x3f0) >> 4, |
| 422 | (temp16 & 0xf), info->regs); |
| 423 | |
| 424 | if (ep_mode) |
| 425 | return busno; |
| 426 | |
| 427 | ls_pcie_setup_ctrl(pcie, info); |
| 428 | |
| 429 | pci_register_hose(hose); |
| 430 | |
| 431 | hose->last_busno = pci_hose_scan(hose); |
| 432 | |
| 433 | printf("PCIe%x: Bus %02x - %02x\n", |
| 434 | info->pci_num, hose->first_busno, hose->last_busno); |
| 435 | |
| 436 | return hose->last_busno + 1; |
| 437 | } |
| 438 | |
| 439 | int ls_pcie_init_board(int busno) |
| 440 | { |
| 441 | struct ls_pcie_info info; |
| 442 | |
| 443 | #ifdef CONFIG_PCIE1 |
| 444 | SET_LS_PCIE_INFO(info, 1); |
| 445 | busno = ls_pcie_init_ctrl(busno, PCIE1, &info); |
| 446 | #endif |
| 447 | |
| 448 | #ifdef CONFIG_PCIE2 |
| 449 | SET_LS_PCIE_INFO(info, 2); |
| 450 | busno = ls_pcie_init_ctrl(busno, PCIE2, &info); |
| 451 | #endif |
| 452 | |
| 453 | #ifdef CONFIG_PCIE3 |
| 454 | SET_LS_PCIE_INFO(info, 3); |
| 455 | busno = ls_pcie_init_ctrl(busno, PCIE3, &info); |
| 456 | #endif |
| 457 | |
| 458 | #ifdef CONFIG_PCIE4 |
| 459 | SET_LS_PCIE_INFO(info, 4); |
| 460 | busno = ls_pcie_init_ctrl(busno, PCIE4, &info); |
| 461 | #endif |
| 462 | |
| 463 | return busno; |
| 464 | } |
| 465 | |
| 466 | void pci_init_board(void) |
| 467 | { |
| 468 | ls_pcie_init_board(0); |
| 469 | } |
| 470 | |
Minghuan Lian | da41902 | 2014-10-31 13:43:44 +0800 | [diff] [blame] | 471 | #ifdef CONFIG_OF_BOARD_SETUP |
| 472 | #include <libfdt.h> |
| 473 | #include <fdt_support.h> |
| 474 | |
| 475 | static void ft_pcie_ls_setup(void *blob, const char *pci_compat, |
| 476 | unsigned long ctrl_addr, enum srds_prtcl dev) |
| 477 | { |
| 478 | int off; |
| 479 | |
| 480 | off = fdt_node_offset_by_compat_reg(blob, pci_compat, |
| 481 | (phys_addr_t)ctrl_addr); |
| 482 | if (off < 0) |
| 483 | return; |
| 484 | |
| 485 | if (!is_serdes_configured(dev)) |
| 486 | fdt_set_node_status(blob, off, FDT_STATUS_DISABLED, 0); |
| 487 | } |
| 488 | |
| 489 | void ft_pcie_setup(void *blob, bd_t *bd) |
| 490 | { |
| 491 | #ifdef CONFIG_PCIE1 |
| 492 | ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE1_ADDR, PCIE1); |
| 493 | #endif |
| 494 | |
| 495 | #ifdef CONFIG_PCIE2 |
| 496 | ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE2_ADDR, PCIE2); |
| 497 | #endif |
Minghuan Lian | e4e8cb7 | 2015-01-21 17:29:20 +0800 | [diff] [blame] | 498 | |
| 499 | #ifdef CONFIG_PCIE3 |
| 500 | ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE3_ADDR, PCIE3); |
| 501 | #endif |
| 502 | |
| 503 | #ifdef CONFIG_PCIE4 |
| 504 | ft_pcie_ls_setup(blob, FSL_PCIE_COMPAT, CONFIG_SYS_PCIE4_ADDR, PCIE4); |
| 505 | #endif |
Minghuan Lian | da41902 | 2014-10-31 13:43:44 +0800 | [diff] [blame] | 506 | } |
| 507 | |
| 508 | #else |
| 509 | void ft_pcie_setup(void *blob, bd_t *bd) |
| 510 | { |
| 511 | } |
| 512 | #endif |