Commit | Line | Data |
---|---|---|
b809b3e8 | 1 | /* |
5b70a097 | 2 | * MPC83xx/85xx/86xx PCI/PCIE support routing. |
b809b3e8 | 3 | * |
07e4f801 | 4 | * Copyright 2007-2012 Freescale Semiconductor, Inc. |
598804cd | 5 | * Copyright 2008-2009 MontaVista Software, Inc. |
b809b3e8 | 6 | * |
9ac4dd30 ZR |
7 | * Initial author: Xianghua Xiao <x.xiao@freescale.com> |
8 | * Recode: ZHANG WEI <wei.zhang@freescale.com> | |
9 | * Rewrite the routing for Frescale PCI and PCI Express | |
10 | * Roy Zang <tie-fei.zang@freescale.com> | |
598804cd AV |
11 | * MPC83xx PCI-Express support: |
12 | * Tony Li <tony.li@freescale.com> | |
13 | * Anton Vorontsov <avorontsov@ru.mvista.com> | |
b809b3e8 JL |
14 | * |
15 | * This program is free software; you can redistribute it and/or modify it | |
16 | * under the terms of the GNU General Public License as published by the | |
17 | * Free Software Foundation; either version 2 of the License, or (at your | |
18 | * option) any later version. | |
19 | */ | |
9ac4dd30 | 20 | #include <linux/kernel.h> |
b809b3e8 | 21 | #include <linux/pci.h> |
9ac4dd30 ZR |
22 | #include <linux/delay.h> |
23 | #include <linux/string.h> | |
24 | #include <linux/init.h> | |
25 | #include <linux/bootmem.h> | |
95f72d1e | 26 | #include <linux/memblock.h> |
54c18193 | 27 | #include <linux/log2.h> |
5a0e3ad6 | 28 | #include <linux/slab.h> |
b809b3e8 | 29 | |
b809b3e8 JL |
30 | #include <asm/io.h> |
31 | #include <asm/prom.h> | |
b809b3e8 | 32 | #include <asm/pci-bridge.h> |
9ac4dd30 | 33 | #include <asm/machdep.h> |
b809b3e8 | 34 | #include <sysdev/fsl_soc.h> |
55c44991 | 35 | #include <sysdev/fsl_pci.h> |
b809b3e8 | 36 | |
b8f44ec2 | 37 | static int fsl_pcie_bus_fixup, is_mpc83xx_pci; |
598804cd | 38 | |
cad5cef6 | 39 | static void quirk_fsl_pcie_header(struct pci_dev *dev) |
598804cd | 40 | { |
59c58c32 | 41 | u8 hdr_type; |
470788d4 | 42 | |
598804cd AV |
43 | /* if we aren't a PCIe don't bother */ |
44 | if (!pci_find_capability(dev, PCI_CAP_ID_EXP)) | |
45 | return; | |
46 | ||
470788d4 | 47 | /* if we aren't in host mode don't bother */ |
59c58c32 ML |
48 | pci_read_config_byte(dev, PCI_HEADER_TYPE, &hdr_type); |
49 | if ((hdr_type & 0x7f) != PCI_HEADER_TYPE_BRIDGE) | |
470788d4 KG |
50 | return; |
51 | ||
598804cd AV |
52 | dev->class = PCI_CLASS_BRIDGE_PCI << 8; |
53 | fsl_pcie_bus_fixup = 1; | |
54 | return; | |
55 | } | |
56 | ||
50d8f87d RI |
57 | static int fsl_indirect_read_config(struct pci_bus *, unsigned int, |
58 | int, int, u32 *); | |
59 | ||
60 | static int fsl_pcie_check_link(struct pci_controller *hose) | |
598804cd | 61 | { |
50d8f87d | 62 | u32 val = 0; |
598804cd | 63 | |
34642bbb | 64 | if (hose->indirect_type & PPC_INDIRECT_TYPE_FSL_CFG_REG_LINK) { |
50d8f87d RI |
65 | if (hose->ops->read == fsl_indirect_read_config) { |
66 | struct pci_bus bus; | |
67 | bus.number = 0; | |
68 | bus.sysdata = hose; | |
69 | bus.ops = hose->ops; | |
70 | indirect_read_config(&bus, 0, PCIE_LTSSM, 4, &val); | |
71 | } else | |
72 | early_read_config_dword(hose, 0, 0, PCIE_LTSSM, &val); | |
34642bbb KG |
73 | if (val < PCIE_LTSSM_L0) |
74 | return 1; | |
75 | } else { | |
76 | struct ccsr_pci __iomem *pci = hose->private_data; | |
77 | /* for PCIe IP rev 3.0 or greater use CSR0 for link state */ | |
78 | val = (in_be32(&pci->pex_csr0) & PEX_CSR0_LTSSM_MASK) | |
79 | >> PEX_CSR0_LTSSM_SHIFT; | |
80 | if (val != PEX_CSR0_LTSSM_L0) | |
81 | return 1; | |
cc6ea0dd | 82 | } |
cc6ea0dd | 83 | |
598804cd AV |
84 | return 0; |
85 | } | |
86 | ||
50d8f87d RI |
87 | static int fsl_indirect_read_config(struct pci_bus *bus, unsigned int devfn, |
88 | int offset, int len, u32 *val) | |
89 | { | |
90 | struct pci_controller *hose = pci_bus_to_host(bus); | |
91 | ||
92 | if (fsl_pcie_check_link(hose)) | |
93 | hose->indirect_type |= PPC_INDIRECT_TYPE_NO_PCIE_LINK; | |
94 | else | |
95 | hose->indirect_type &= ~PPC_INDIRECT_TYPE_NO_PCIE_LINK; | |
96 | ||
97 | return indirect_read_config(bus, devfn, offset, len, val); | |
98 | } | |
99 | ||
b37e1613 RI |
100 | #if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx) |
101 | ||
102 | static struct pci_ops fsl_indirect_pcie_ops = | |
50d8f87d RI |
103 | { |
104 | .read = fsl_indirect_read_config, | |
105 | .write = indirect_write_config, | |
106 | }; | |
107 | ||
96ea3b4a KG |
108 | #define MAX_PHYS_ADDR_BITS 40 |
109 | static u64 pci64_dma_offset = 1ull << MAX_PHYS_ADDR_BITS; | |
110 | ||
111 | static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask) | |
112 | { | |
113 | if (!dev->dma_mask || !dma_supported(dev, dma_mask)) | |
114 | return -EIO; | |
115 | ||
116 | /* | |
117 | * Fixup PCI devices that are able to DMA to above the physical | |
118 | * address width of the SoC such that we can address any internal | |
119 | * SoC address from across PCI if needed | |
120 | */ | |
121 | if ((dev->bus == &pci_bus_type) && | |
122 | dma_mask >= DMA_BIT_MASK(MAX_PHYS_ADDR_BITS)) { | |
123 | set_dma_ops(dev, &dma_direct_ops); | |
124 | set_dma_offset(dev, pci64_dma_offset); | |
125 | } | |
126 | ||
127 | *dev->dma_mask = dma_mask; | |
128 | return 0; | |
129 | } | |
130 | ||
a393d897 | 131 | static int setup_one_atmu(struct ccsr_pci __iomem *pci, |
a097a78c TP |
132 | unsigned int index, const struct resource *res, |
133 | resource_size_t offset) | |
134 | { | |
135 | resource_size_t pci_addr = res->start - offset; | |
136 | resource_size_t phys_addr = res->start; | |
28f65c11 | 137 | resource_size_t size = resource_size(res); |
a097a78c TP |
138 | u32 flags = 0x80044000; /* enable & mem R/W */ |
139 | unsigned int i; | |
140 | ||
141 | pr_debug("PCI MEM resource start 0x%016llx, size 0x%016llx.\n", | |
142 | (u64)res->start, (u64)size); | |
143 | ||
565f3764 TP |
144 | if (res->flags & IORESOURCE_PREFETCH) |
145 | flags |= 0x10000000; /* enable relaxed ordering */ | |
146 | ||
a097a78c | 147 | for (i = 0; size > 0; i++) { |
2b4a8bd2 | 148 | unsigned int bits = min(ilog2(size), |
a097a78c TP |
149 | __ffs(pci_addr | phys_addr)); |
150 | ||
151 | if (index + i >= 5) | |
152 | return -1; | |
153 | ||
154 | out_be32(&pci->pow[index + i].potar, pci_addr >> 12); | |
155 | out_be32(&pci->pow[index + i].potear, (u64)pci_addr >> 44); | |
156 | out_be32(&pci->pow[index + i].powbar, phys_addr >> 12); | |
157 | out_be32(&pci->pow[index + i].powar, flags | (bits - 1)); | |
158 | ||
159 | pci_addr += (resource_size_t)1U << bits; | |
160 | phys_addr += (resource_size_t)1U << bits; | |
161 | size -= (resource_size_t)1U << bits; | |
162 | } | |
163 | ||
164 | return i; | |
165 | } | |
166 | ||
9ac4dd30 | 167 | /* atmu setup for fsl pci/pcie controller */ |
34642bbb | 168 | static void setup_pci_atmu(struct pci_controller *hose) |
b809b3e8 | 169 | { |
34642bbb | 170 | struct ccsr_pci __iomem *pci = hose->private_data; |
f4154e16 | 171 | int i, j, n, mem_log, win_idx = 3, start_idx = 1, end_idx = 4; |
54c18193 | 172 | u64 mem, sz, paddr_hi = 0; |
3fd47f06 | 173 | u64 offset = 0, paddr_lo = ULLONG_MAX; |
54c18193 KG |
174 | u32 pcicsrbar = 0, pcicsrbar_sz; |
175 | u32 piwar = PIWAR_EN | PIWAR_PF | PIWAR_TGI_LOCAL | | |
176 | PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP; | |
c22618a1 | 177 | const char *name = hose->dn->full_name; |
446bc1ff TT |
178 | const u64 *reg; |
179 | int len; | |
b809b3e8 | 180 | |
9e67886b RZ |
181 | if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) { |
182 | if (in_be32(&pci->block_rev1) >= PCIE_IP_REV_2_2) { | |
183 | win_idx = 2; | |
184 | start_idx = 0; | |
185 | end_idx = 3; | |
186 | } | |
187 | } | |
188 | ||
a097a78c | 189 | /* Disable all windows (except powar0 since it's ignored) */ |
9ac4dd30 ZR |
190 | for(i = 1; i < 5; i++) |
191 | out_be32(&pci->pow[i].powar, 0); | |
f4154e16 | 192 | for (i = start_idx; i < end_idx; i++) |
9ac4dd30 ZR |
193 | out_be32(&pci->piw[i].piwar, 0); |
194 | ||
195 | /* Setup outbound MEM window */ | |
a097a78c TP |
196 | for(i = 0, j = 1; i < 3; i++) { |
197 | if (!(hose->mem_resources[i].flags & IORESOURCE_MEM)) | |
198 | continue; | |
199 | ||
54c18193 KG |
200 | paddr_lo = min(paddr_lo, (u64)hose->mem_resources[i].start); |
201 | paddr_hi = max(paddr_hi, (u64)hose->mem_resources[i].end); | |
202 | ||
3fd47f06 BH |
203 | /* We assume all memory resources have the same offset */ |
204 | offset = hose->mem_offset[i]; | |
205 | n = setup_one_atmu(pci, j, &hose->mem_resources[i], offset); | |
a097a78c TP |
206 | |
207 | if (n < 0 || j >= 5) { | |
208 | pr_err("Ran out of outbound PCI ATMUs for resource %d!\n", i); | |
209 | hose->mem_resources[i].flags |= IORESOURCE_DISABLED; | |
210 | } else | |
211 | j += n; | |
212 | } | |
9ac4dd30 ZR |
213 | |
214 | /* Setup outbound IO window */ | |
a097a78c TP |
215 | if (hose->io_resource.flags & IORESOURCE_IO) { |
216 | if (j >= 5) { | |
217 | pr_err("Ran out of outbound PCI ATMUs for IO resource\n"); | |
218 | } else { | |
219 | pr_debug("PCI IO resource start 0x%016llx, size 0x%016llx, " | |
220 | "phy base 0x%016llx.\n", | |
28f65c11 JP |
221 | (u64)hose->io_resource.start, |
222 | (u64)resource_size(&hose->io_resource), | |
223 | (u64)hose->io_base_phys); | |
a097a78c TP |
224 | out_be32(&pci->pow[j].potar, (hose->io_resource.start >> 12)); |
225 | out_be32(&pci->pow[j].potear, 0); | |
226 | out_be32(&pci->pow[j].powbar, (hose->io_base_phys >> 12)); | |
227 | /* Enable, IO R/W */ | |
228 | out_be32(&pci->pow[j].powar, 0x80088000 | |
2b4a8bd2 | 229 | | (ilog2(hose->io_resource.end |
a097a78c TP |
230 | - hose->io_resource.start + 1) - 1)); |
231 | } | |
9ac4dd30 ZR |
232 | } |
233 | ||
54c18193 | 234 | /* convert to pci address space */ |
3fd47f06 BH |
235 | paddr_hi -= offset; |
236 | paddr_lo -= offset; | |
54c18193 KG |
237 | |
238 | if (paddr_hi == paddr_lo) { | |
239 | pr_err("%s: No outbound window space\n", name); | |
04aa99cd | 240 | return; |
54c18193 KG |
241 | } |
242 | ||
243 | if (paddr_lo == 0) { | |
244 | pr_err("%s: No space for inbound window\n", name); | |
04aa99cd | 245 | return; |
54c18193 KG |
246 | } |
247 | ||
248 | /* setup PCSRBAR/PEXCSRBAR */ | |
249 | early_write_config_dword(hose, 0, 0, PCI_BASE_ADDRESS_0, 0xffffffff); | |
250 | early_read_config_dword(hose, 0, 0, PCI_BASE_ADDRESS_0, &pcicsrbar_sz); | |
251 | pcicsrbar_sz = ~pcicsrbar_sz + 1; | |
252 | ||
253 | if (paddr_hi < (0x100000000ull - pcicsrbar_sz) || | |
254 | (paddr_lo > 0x100000000ull)) | |
255 | pcicsrbar = 0x100000000ull - pcicsrbar_sz; | |
256 | else | |
257 | pcicsrbar = (paddr_lo - pcicsrbar_sz) & -pcicsrbar_sz; | |
258 | early_write_config_dword(hose, 0, 0, PCI_BASE_ADDRESS_0, pcicsrbar); | |
259 | ||
260 | paddr_lo = min(paddr_lo, (u64)pcicsrbar); | |
261 | ||
262 | pr_info("%s: PCICSRBAR @ 0x%x\n", name, pcicsrbar); | |
263 | ||
264 | /* Setup inbound mem window */ | |
95f72d1e | 265 | mem = memblock_end_of_DRAM(); |
446bc1ff TT |
266 | |
267 | /* | |
268 | * The msi-address-64 property, if it exists, indicates the physical | |
269 | * address of the MSIIR register. Normally, this register is located | |
270 | * inside CCSR, so the ATMU that covers all of CCSR is used. But if | |
271 | * this property exists, then we normally need to create a new ATMU | |
272 | * for it. For now, however, we cheat. The only entity that creates | |
273 | * this property is the Freescale hypervisor, and the address is | |
274 | * specified in the partition configuration. Typically, the address | |
275 | * is located in the page immediately after the end of DDR. If so, we | |
276 | * can avoid allocating a new ATMU by extending the DDR ATMU by one | |
277 | * page. | |
278 | */ | |
279 | reg = of_get_property(hose->dn, "msi-address-64", &len); | |
280 | if (reg && (len == sizeof(u64))) { | |
281 | u64 address = be64_to_cpup(reg); | |
282 | ||
283 | if ((address >= mem) && (address < (mem + PAGE_SIZE))) { | |
284 | pr_info("%s: extending DDR ATMU to cover MSIIR", name); | |
285 | mem += PAGE_SIZE; | |
286 | } else { | |
287 | /* TODO: Create a new ATMU for MSIIR */ | |
288 | pr_warn("%s: msi-address-64 address of %llx is " | |
289 | "unsupported\n", name, address); | |
290 | } | |
291 | } | |
292 | ||
54c18193 | 293 | sz = min(mem, paddr_lo); |
2b4a8bd2 | 294 | mem_log = ilog2(sz); |
54c18193 KG |
295 | |
296 | /* PCIe can overmap inbound & outbound since RX & TX are separated */ | |
297 | if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) { | |
298 | /* Size window to exact size if power-of-two or one size up */ | |
299 | if ((1ull << mem_log) != mem) { | |
300 | if ((1ull << mem_log) > mem) | |
301 | pr_info("%s: Setting PCI inbound window " | |
302 | "greater than memory size\n", name); | |
303 | mem_log++; | |
304 | } | |
305 | ||
f4154e16 | 306 | piwar |= ((mem_log - 1) & PIWAR_SZ_MASK); |
54c18193 KG |
307 | |
308 | /* Setup inbound memory window */ | |
309 | out_be32(&pci->piw[win_idx].pitar, 0x00000000); | |
310 | out_be32(&pci->piw[win_idx].piwbar, 0x00000000); | |
311 | out_be32(&pci->piw[win_idx].piwar, piwar); | |
312 | win_idx--; | |
313 | ||
314 | hose->dma_window_base_cur = 0x00000000; | |
315 | hose->dma_window_size = (resource_size_t)sz; | |
96ea3b4a KG |
316 | |
317 | /* | |
318 | * if we have >4G of memory setup second PCI inbound window to | |
319 | * let devices that are 64-bit address capable to work w/o | |
320 | * SWIOTLB and access the full range of memory | |
321 | */ | |
322 | if (sz != mem) { | |
2b4a8bd2 | 323 | mem_log = ilog2(mem); |
96ea3b4a KG |
324 | |
325 | /* Size window up if we dont fit in exact power-of-2 */ | |
326 | if ((1ull << mem_log) != mem) | |
327 | mem_log++; | |
328 | ||
329 | piwar = (piwar & ~PIWAR_SZ_MASK) | (mem_log - 1); | |
330 | ||
331 | /* Setup inbound memory window */ | |
332 | out_be32(&pci->piw[win_idx].pitar, 0x00000000); | |
333 | out_be32(&pci->piw[win_idx].piwbear, | |
334 | pci64_dma_offset >> 44); | |
335 | out_be32(&pci->piw[win_idx].piwbar, | |
336 | pci64_dma_offset >> 12); | |
337 | out_be32(&pci->piw[win_idx].piwar, piwar); | |
338 | ||
339 | /* | |
340 | * install our own dma_set_mask handler to fixup dma_ops | |
341 | * and dma_offset | |
342 | */ | |
343 | ppc_md.dma_set_mask = fsl_pci_dma_set_mask; | |
344 | ||
345 | pr_info("%s: Setup 64-bit PCI DMA window\n", name); | |
346 | } | |
54c18193 KG |
347 | } else { |
348 | u64 paddr = 0; | |
349 | ||
350 | /* Setup inbound memory window */ | |
351 | out_be32(&pci->piw[win_idx].pitar, paddr >> 12); | |
352 | out_be32(&pci->piw[win_idx].piwbar, paddr >> 12); | |
353 | out_be32(&pci->piw[win_idx].piwar, (piwar | (mem_log - 1))); | |
354 | win_idx--; | |
355 | ||
356 | paddr += 1ull << mem_log; | |
357 | sz -= 1ull << mem_log; | |
358 | ||
359 | if (sz) { | |
2b4a8bd2 | 360 | mem_log = ilog2(sz); |
54c18193 KG |
361 | piwar |= (mem_log - 1); |
362 | ||
363 | out_be32(&pci->piw[win_idx].pitar, paddr >> 12); | |
364 | out_be32(&pci->piw[win_idx].piwbar, paddr >> 12); | |
365 | out_be32(&pci->piw[win_idx].piwar, piwar); | |
366 | win_idx--; | |
367 | ||
368 | paddr += 1ull << mem_log; | |
369 | } | |
370 | ||
371 | hose->dma_window_base_cur = 0x00000000; | |
372 | hose->dma_window_size = (resource_size_t)paddr; | |
373 | } | |
a097a78c | 374 | |
54c18193 KG |
375 | if (hose->dma_window_size < mem) { |
376 | #ifndef CONFIG_SWIOTLB | |
377 | pr_err("%s: ERROR: Memory size exceeds PCI ATMU ability to " | |
378 | "map - enable CONFIG_SWIOTLB to avoid dma errors.\n", | |
379 | name); | |
380 | #endif | |
381 | /* adjusting outbound windows could reclaim space in mem map */ | |
382 | if (paddr_hi < 0xffffffffull) | |
383 | pr_warning("%s: WARNING: Outbound window cfg leaves " | |
384 | "gaps in memory map. Adjusting the memory map " | |
385 | "could reduce unnecessary bounce buffering.\n", | |
386 | name); | |
387 | ||
388 | pr_info("%s: DMA window size is 0x%llx\n", name, | |
389 | (u64)hose->dma_window_size); | |
390 | } | |
b809b3e8 JL |
391 | } |
392 | ||
c9dadffb | 393 | static void __init setup_pci_cmd(struct pci_controller *hose) |
b809b3e8 | 394 | { |
b809b3e8 | 395 | u16 cmd; |
eb12af43 KG |
396 | int cap_x; |
397 | ||
b809b3e8 JL |
398 | early_read_config_word(hose, 0, 0, PCI_COMMAND, &cmd); |
399 | cmd |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | |
9ac4dd30 | 400 | | PCI_COMMAND_IO; |
b809b3e8 | 401 | early_write_config_word(hose, 0, 0, PCI_COMMAND, cmd); |
eb12af43 KG |
402 | |
403 | cap_x = early_find_capability(hose, 0, 0, PCI_CAP_ID_PCIX); | |
404 | if (cap_x) { | |
405 | int pci_x_cmd = cap_x + PCI_X_CMD; | |
406 | cmd = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ | |
407 | | PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E; | |
408 | early_write_config_word(hose, 0, 0, pci_x_cmd, cmd); | |
409 | } else { | |
410 | early_write_config_byte(hose, 0, 0, PCI_LATENCY_TIMER, 0x80); | |
411 | } | |
9ad494f6 KG |
412 | } |
413 | ||
6c0a11c1 KG |
414 | void fsl_pcibios_fixup_bus(struct pci_bus *bus) |
415 | { | |
8206a110 | 416 | struct pci_controller *hose = pci_bus_to_host(bus); |
13635dfd BH |
417 | int i, is_pcie = 0, no_link; |
418 | ||
419 | /* The root complex bridge comes up with bogus resources, | |
420 | * we copy the PHB ones in. | |
421 | * | |
422 | * With the current generic PCI code, the PHB bus no longer | |
423 | * has bus->resource[0..4] set, so things are a bit more | |
424 | * tricky. | |
425 | */ | |
426 | ||
427 | if (fsl_pcie_bus_fixup) | |
428 | is_pcie = early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP); | |
429 | no_link = !!(hose->indirect_type & PPC_INDIRECT_TYPE_NO_PCIE_LINK); | |
430 | ||
431 | if (bus->parent == hose->bus && (is_pcie || no_link)) { | |
432 | for (i = 0; i < PCI_BRIDGE_RESOURCE_NUM; ++i) { | |
72b122cc | 433 | struct resource *res = bus->resource[i]; |
13635dfd BH |
434 | struct resource *par; |
435 | ||
436 | if (!res) | |
437 | continue; | |
438 | if (i == 0) | |
439 | par = &hose->io_resource; | |
440 | else if (i < 4) | |
441 | par = &hose->mem_resources[i-1]; | |
442 | else par = NULL; | |
443 | ||
444 | res->start = par ? par->start : 0; | |
445 | res->end = par ? par->end : 0; | |
446 | res->flags = par ? par->flags : 0; | |
6c0a11c1 KG |
447 | } |
448 | } | |
449 | } | |
450 | ||
52c5affc | 451 | int __init fsl_add_bridge(struct platform_device *pdev, int is_primary) |
b809b3e8 JL |
452 | { |
453 | int len; | |
454 | struct pci_controller *hose; | |
455 | struct resource rsrc; | |
8efca493 | 456 | const int *bus_range; |
59c58c32 | 457 | u8 hdr_type, progif; |
52c5affc | 458 | struct device_node *dev; |
34642bbb | 459 | struct ccsr_pci __iomem *pci; |
52c5affc VS |
460 | |
461 | dev = pdev->dev.of_node; | |
b809b3e8 | 462 | |
ef1fd2df PK |
463 | if (!of_device_is_available(dev)) { |
464 | pr_warning("%s: disabled\n", dev->full_name); | |
465 | return -ENODEV; | |
466 | } | |
467 | ||
9ac4dd30 | 468 | pr_debug("Adding PCI host bridge %s\n", dev->full_name); |
b809b3e8 JL |
469 | |
470 | /* Fetch host bridge registers address */ | |
9ac4dd30 ZR |
471 | if (of_address_to_resource(dev, 0, &rsrc)) { |
472 | printk(KERN_WARNING "Can't get pci register base!"); | |
473 | return -ENOMEM; | |
474 | } | |
b809b3e8 JL |
475 | |
476 | /* Get bus range if any */ | |
e2eb6392 | 477 | bus_range = of_get_property(dev, "bus-range", &len); |
b809b3e8 JL |
478 | if (bus_range == NULL || len < 2 * sizeof(int)) |
479 | printk(KERN_WARNING "Can't get bus-range for %s, assume" | |
9ac4dd30 | 480 | " bus 0\n", dev->full_name); |
b809b3e8 | 481 | |
0e47ff1c | 482 | pci_add_flags(PCI_REASSIGN_ALL_BUS); |
dbf8471f | 483 | hose = pcibios_alloc_controller(dev); |
b809b3e8 JL |
484 | if (!hose) |
485 | return -ENOMEM; | |
dbf8471f | 486 | |
52c5affc VS |
487 | /* set platform device as the parent */ |
488 | hose->parent = &pdev->dev; | |
b809b3e8 | 489 | hose->first_busno = bus_range ? bus_range[0] : 0x0; |
bf7c036f | 490 | hose->last_busno = bus_range ? bus_range[1] : 0xff; |
b809b3e8 | 491 | |
34642bbb KG |
492 | pr_debug("PCI memory map start 0x%016llx, size 0x%016llx\n", |
493 | (u64)rsrc.start, (u64)resource_size(&rsrc)); | |
494 | ||
495 | pci = hose->private_data = ioremap(rsrc.start, resource_size(&rsrc)); | |
496 | if (!hose->private_data) | |
497 | goto no_bridge; | |
498 | ||
b37e1613 RI |
499 | setup_indirect_pci(hose, rsrc.start, rsrc.start + 0x4, |
500 | PPC_INDIRECT_TYPE_BIG_ENDIAN); | |
08871c09 | 501 | |
34642bbb KG |
502 | if (in_be32(&pci->block_rev1) < PCIE_IP_REV_3_0) |
503 | hose->indirect_type |= PPC_INDIRECT_TYPE_FSL_CFG_REG_LINK; | |
504 | ||
59c58c32 | 505 | if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) { |
b37e1613 RI |
506 | /* use fsl_indirect_read_config for PCIe */ |
507 | hose->ops = &fsl_indirect_pcie_ops; | |
59c58c32 ML |
508 | /* For PCIE read HEADER_TYPE to identify controler mode */ |
509 | early_read_config_byte(hose, 0, 0, PCI_HEADER_TYPE, &hdr_type); | |
510 | if ((hdr_type & 0x7f) != PCI_HEADER_TYPE_BRIDGE) | |
511 | goto no_bridge; | |
512 | ||
513 | } else { | |
514 | /* For PCI read PROG to identify controller mode */ | |
515 | early_read_config_byte(hose, 0, 0, PCI_CLASS_PROG, &progif); | |
516 | if ((progif & 1) == 1) | |
517 | goto no_bridge; | |
08871c09 PK |
518 | } |
519 | ||
9ac4dd30 | 520 | setup_pci_cmd(hose); |
b809b3e8 | 521 | |
9ac4dd30 | 522 | /* check PCI express link status */ |
957ecffc | 523 | if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) { |
7659c038 | 524 | hose->indirect_type |= PPC_INDIRECT_TYPE_EXT_REG | |
957ecffc | 525 | PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS; |
34642bbb | 526 | if (fsl_pcie_check_link(hose)) |
957ecffc KG |
527 | hose->indirect_type |= PPC_INDIRECT_TYPE_NO_PCIE_LINK; |
528 | } | |
b809b3e8 | 529 | |
df3c9019 | 530 | printk(KERN_INFO "Found FSL PCI host bridge at 0x%016llx. " |
9ac4dd30 ZR |
531 | "Firmware bus number: %d->%d\n", |
532 | (unsigned long long)rsrc.start, hose->first_busno, | |
533 | hose->last_busno); | |
b809b3e8 | 534 | |
9ac4dd30 | 535 | pr_debug(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n", |
b809b3e8 JL |
536 | hose, hose->cfg_addr, hose->cfg_data); |
537 | ||
538 | /* Interpret the "ranges" property */ | |
539 | /* This also maps the I/O region and sets isa_io/mem_base */ | |
9ac4dd30 | 540 | pci_process_bridge_OF_ranges(hose, dev, is_primary); |
b809b3e8 JL |
541 | |
542 | /* Setup PEX window registers */ | |
34642bbb | 543 | setup_pci_atmu(hose); |
b809b3e8 JL |
544 | |
545 | return 0; | |
59c58c32 ML |
546 | |
547 | no_bridge: | |
34642bbb | 548 | iounmap(hose->private_data); |
59c58c32 ML |
549 | /* unmap cfg_data & cfg_addr separately if not on same page */ |
550 | if (((unsigned long)hose->cfg_data & PAGE_MASK) != | |
551 | ((unsigned long)hose->cfg_addr & PAGE_MASK)) | |
552 | iounmap(hose->cfg_data); | |
553 | iounmap(hose->cfg_addr); | |
554 | pcibios_free_controller(hose); | |
555 | return -ENODEV; | |
b809b3e8 | 556 | } |
5753c082 | 557 | #endif /* CONFIG_FSL_SOC_BOOKE || CONFIG_PPC_86xx */ |
76fe1ffc | 558 | |
470788d4 | 559 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID, quirk_fsl_pcie_header); |
598804cd | 560 | |
470788d4 | 561 | #if defined(CONFIG_PPC_83xx) || defined(CONFIG_PPC_MPC512x) |
598804cd AV |
562 | struct mpc83xx_pcie_priv { |
563 | void __iomem *cfg_type0; | |
564 | void __iomem *cfg_type1; | |
565 | u32 dev_base; | |
566 | }; | |
567 | ||
b8f44ec2 KG |
568 | struct pex_inbound_window { |
569 | u32 ar; | |
570 | u32 tar; | |
571 | u32 barl; | |
572 | u32 barh; | |
573 | }; | |
574 | ||
598804cd AV |
575 | /* |
576 | * With the convention of u-boot, the PCIE outbound window 0 serves | |
577 | * as configuration transactions outbound. | |
578 | */ | |
579 | #define PEX_OUTWIN0_BAR 0xCA4 | |
580 | #define PEX_OUTWIN0_TAL 0xCA8 | |
581 | #define PEX_OUTWIN0_TAH 0xCAC | |
b8f44ec2 KG |
582 | #define PEX_RC_INWIN_BASE 0xE60 |
583 | #define PEX_RCIWARn_EN 0x1 | |
598804cd AV |
584 | |
585 | static int mpc83xx_pcie_exclude_device(struct pci_bus *bus, unsigned int devfn) | |
586 | { | |
8206a110 | 587 | struct pci_controller *hose = pci_bus_to_host(bus); |
598804cd AV |
588 | |
589 | if (hose->indirect_type & PPC_INDIRECT_TYPE_NO_PCIE_LINK) | |
590 | return PCIBIOS_DEVICE_NOT_FOUND; | |
591 | /* | |
592 | * Workaround for the HW bug: for Type 0 configure transactions the | |
593 | * PCI-E controller does not check the device number bits and just | |
594 | * assumes that the device number bits are 0. | |
595 | */ | |
596 | if (bus->number == hose->first_busno || | |
597 | bus->primary == hose->first_busno) { | |
598 | if (devfn & 0xf8) | |
599 | return PCIBIOS_DEVICE_NOT_FOUND; | |
600 | } | |
601 | ||
602 | if (ppc_md.pci_exclude_device) { | |
603 | if (ppc_md.pci_exclude_device(hose, bus->number, devfn)) | |
604 | return PCIBIOS_DEVICE_NOT_FOUND; | |
605 | } | |
606 | ||
607 | return PCIBIOS_SUCCESSFUL; | |
608 | } | |
609 | ||
610 | static void __iomem *mpc83xx_pcie_remap_cfg(struct pci_bus *bus, | |
611 | unsigned int devfn, int offset) | |
612 | { | |
8206a110 | 613 | struct pci_controller *hose = pci_bus_to_host(bus); |
598804cd | 614 | struct mpc83xx_pcie_priv *pcie = hose->dn->data; |
f93611fa | 615 | u32 dev_base = bus->number << 24 | devfn << 16; |
598804cd AV |
616 | int ret; |
617 | ||
618 | ret = mpc83xx_pcie_exclude_device(bus, devfn); | |
619 | if (ret) | |
620 | return NULL; | |
621 | ||
622 | offset &= 0xfff; | |
623 | ||
624 | /* Type 0 */ | |
625 | if (bus->number == hose->first_busno) | |
626 | return pcie->cfg_type0 + offset; | |
627 | ||
628 | if (pcie->dev_base == dev_base) | |
629 | goto mapped; | |
630 | ||
631 | out_le32(pcie->cfg_type0 + PEX_OUTWIN0_TAL, dev_base); | |
632 | ||
633 | pcie->dev_base = dev_base; | |
634 | mapped: | |
635 | return pcie->cfg_type1 + offset; | |
636 | } | |
637 | ||
638 | static int mpc83xx_pcie_read_config(struct pci_bus *bus, unsigned int devfn, | |
639 | int offset, int len, u32 *val) | |
640 | { | |
641 | void __iomem *cfg_addr; | |
642 | ||
643 | cfg_addr = mpc83xx_pcie_remap_cfg(bus, devfn, offset); | |
644 | if (!cfg_addr) | |
645 | return PCIBIOS_DEVICE_NOT_FOUND; | |
646 | ||
647 | switch (len) { | |
648 | case 1: | |
649 | *val = in_8(cfg_addr); | |
650 | break; | |
651 | case 2: | |
652 | *val = in_le16(cfg_addr); | |
653 | break; | |
654 | default: | |
655 | *val = in_le32(cfg_addr); | |
656 | break; | |
657 | } | |
658 | ||
659 | return PCIBIOS_SUCCESSFUL; | |
660 | } | |
661 | ||
662 | static int mpc83xx_pcie_write_config(struct pci_bus *bus, unsigned int devfn, | |
663 | int offset, int len, u32 val) | |
664 | { | |
f93611fa | 665 | struct pci_controller *hose = pci_bus_to_host(bus); |
598804cd AV |
666 | void __iomem *cfg_addr; |
667 | ||
668 | cfg_addr = mpc83xx_pcie_remap_cfg(bus, devfn, offset); | |
669 | if (!cfg_addr) | |
670 | return PCIBIOS_DEVICE_NOT_FOUND; | |
671 | ||
f93611fa AV |
672 | /* PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS */ |
673 | if (offset == PCI_PRIMARY_BUS && bus->number == hose->first_busno) | |
674 | val &= 0xffffff00; | |
675 | ||
598804cd AV |
676 | switch (len) { |
677 | case 1: | |
678 | out_8(cfg_addr, val); | |
679 | break; | |
680 | case 2: | |
681 | out_le16(cfg_addr, val); | |
682 | break; | |
683 | default: | |
684 | out_le32(cfg_addr, val); | |
685 | break; | |
686 | } | |
687 | ||
688 | return PCIBIOS_SUCCESSFUL; | |
689 | } | |
690 | ||
691 | static struct pci_ops mpc83xx_pcie_ops = { | |
692 | .read = mpc83xx_pcie_read_config, | |
693 | .write = mpc83xx_pcie_write_config, | |
694 | }; | |
695 | ||
696 | static int __init mpc83xx_pcie_setup(struct pci_controller *hose, | |
697 | struct resource *reg) | |
698 | { | |
699 | struct mpc83xx_pcie_priv *pcie; | |
700 | u32 cfg_bar; | |
701 | int ret = -ENOMEM; | |
702 | ||
703 | pcie = zalloc_maybe_bootmem(sizeof(*pcie), GFP_KERNEL); | |
704 | if (!pcie) | |
705 | return ret; | |
706 | ||
707 | pcie->cfg_type0 = ioremap(reg->start, resource_size(reg)); | |
708 | if (!pcie->cfg_type0) | |
709 | goto err0; | |
710 | ||
711 | cfg_bar = in_le32(pcie->cfg_type0 + PEX_OUTWIN0_BAR); | |
712 | if (!cfg_bar) { | |
713 | /* PCI-E isn't configured. */ | |
714 | ret = -ENODEV; | |
715 | goto err1; | |
716 | } | |
717 | ||
718 | pcie->cfg_type1 = ioremap(cfg_bar, 0x1000); | |
719 | if (!pcie->cfg_type1) | |
720 | goto err1; | |
721 | ||
722 | WARN_ON(hose->dn->data); | |
723 | hose->dn->data = pcie; | |
724 | hose->ops = &mpc83xx_pcie_ops; | |
34642bbb | 725 | hose->indirect_type |= PPC_INDIRECT_TYPE_FSL_CFG_REG_LINK; |
598804cd AV |
726 | |
727 | out_le32(pcie->cfg_type0 + PEX_OUTWIN0_TAH, 0); | |
728 | out_le32(pcie->cfg_type0 + PEX_OUTWIN0_TAL, 0); | |
729 | ||
34642bbb | 730 | if (fsl_pcie_check_link(hose)) |
598804cd AV |
731 | hose->indirect_type |= PPC_INDIRECT_TYPE_NO_PCIE_LINK; |
732 | ||
733 | return 0; | |
734 | err1: | |
735 | iounmap(pcie->cfg_type0); | |
736 | err0: | |
737 | kfree(pcie); | |
738 | return ret; | |
739 | ||
740 | } | |
741 | ||
76fe1ffc JR |
742 | int __init mpc83xx_add_bridge(struct device_node *dev) |
743 | { | |
598804cd | 744 | int ret; |
76fe1ffc JR |
745 | int len; |
746 | struct pci_controller *hose; | |
5b70a097 JR |
747 | struct resource rsrc_reg; |
748 | struct resource rsrc_cfg; | |
76fe1ffc | 749 | const int *bus_range; |
5b70a097 | 750 | int primary; |
76fe1ffc | 751 | |
b8f44ec2 KG |
752 | is_mpc83xx_pci = 1; |
753 | ||
598804cd AV |
754 | if (!of_device_is_available(dev)) { |
755 | pr_warning("%s: disabled by the firmware.\n", | |
756 | dev->full_name); | |
757 | return -ENODEV; | |
758 | } | |
76fe1ffc JR |
759 | pr_debug("Adding PCI host bridge %s\n", dev->full_name); |
760 | ||
761 | /* Fetch host bridge registers address */ | |
5b70a097 JR |
762 | if (of_address_to_resource(dev, 0, &rsrc_reg)) { |
763 | printk(KERN_WARNING "Can't get pci register base!\n"); | |
764 | return -ENOMEM; | |
765 | } | |
766 | ||
767 | memset(&rsrc_cfg, 0, sizeof(rsrc_cfg)); | |
768 | ||
769 | if (of_address_to_resource(dev, 1, &rsrc_cfg)) { | |
770 | printk(KERN_WARNING | |
771 | "No pci config register base in dev tree, " | |
772 | "using default\n"); | |
773 | /* | |
774 | * MPC83xx supports up to two host controllers | |
775 | * one at 0x8500 has config space registers at 0x8300 | |
776 | * one at 0x8600 has config space registers at 0x8380 | |
777 | */ | |
778 | if ((rsrc_reg.start & 0xfffff) == 0x8500) | |
779 | rsrc_cfg.start = (rsrc_reg.start & 0xfff00000) + 0x8300; | |
780 | else if ((rsrc_reg.start & 0xfffff) == 0x8600) | |
781 | rsrc_cfg.start = (rsrc_reg.start & 0xfff00000) + 0x8380; | |
782 | } | |
783 | /* | |
784 | * Controller at offset 0x8500 is primary | |
785 | */ | |
786 | if ((rsrc_reg.start & 0xfffff) == 0x8500) | |
787 | primary = 1; | |
788 | else | |
789 | primary = 0; | |
76fe1ffc JR |
790 | |
791 | /* Get bus range if any */ | |
792 | bus_range = of_get_property(dev, "bus-range", &len); | |
793 | if (bus_range == NULL || len < 2 * sizeof(int)) { | |
794 | printk(KERN_WARNING "Can't get bus-range for %s, assume" | |
795 | " bus 0\n", dev->full_name); | |
796 | } | |
797 | ||
0e47ff1c | 798 | pci_add_flags(PCI_REASSIGN_ALL_BUS); |
76fe1ffc JR |
799 | hose = pcibios_alloc_controller(dev); |
800 | if (!hose) | |
801 | return -ENOMEM; | |
802 | ||
803 | hose->first_busno = bus_range ? bus_range[0] : 0; | |
804 | hose->last_busno = bus_range ? bus_range[1] : 0xff; | |
805 | ||
598804cd AV |
806 | if (of_device_is_compatible(dev, "fsl,mpc8314-pcie")) { |
807 | ret = mpc83xx_pcie_setup(hose, &rsrc_reg); | |
808 | if (ret) | |
809 | goto err0; | |
810 | } else { | |
b37e1613 RI |
811 | setup_indirect_pci(hose, rsrc_cfg.start, |
812 | rsrc_cfg.start + 4, 0); | |
598804cd | 813 | } |
76fe1ffc | 814 | |
35225802 | 815 | printk(KERN_INFO "Found FSL PCI host bridge at 0x%016llx. " |
76fe1ffc | 816 | "Firmware bus number: %d->%d\n", |
5b70a097 | 817 | (unsigned long long)rsrc_reg.start, hose->first_busno, |
76fe1ffc JR |
818 | hose->last_busno); |
819 | ||
820 | pr_debug(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n", | |
821 | hose, hose->cfg_addr, hose->cfg_data); | |
822 | ||
823 | /* Interpret the "ranges" property */ | |
824 | /* This also maps the I/O region and sets isa_io/mem_base */ | |
825 | pci_process_bridge_OF_ranges(hose, dev, primary); | |
826 | ||
827 | return 0; | |
598804cd AV |
828 | err0: |
829 | pcibios_free_controller(hose); | |
830 | return ret; | |
76fe1ffc JR |
831 | } |
832 | #endif /* CONFIG_PPC_83xx */ | |
b8f44ec2 KG |
833 | |
834 | u64 fsl_pci_immrbar_base(struct pci_controller *hose) | |
835 | { | |
836 | #ifdef CONFIG_PPC_83xx | |
837 | if (is_mpc83xx_pci) { | |
838 | struct mpc83xx_pcie_priv *pcie = hose->dn->data; | |
839 | struct pex_inbound_window *in; | |
840 | int i; | |
841 | ||
842 | /* Walk the Root Complex Inbound windows to match IMMR base */ | |
843 | in = pcie->cfg_type0 + PEX_RC_INWIN_BASE; | |
844 | for (i = 0; i < 4; i++) { | |
845 | /* not enabled, skip */ | |
846 | if (!in_le32(&in[i].ar) & PEX_RCIWARn_EN) | |
847 | continue; | |
848 | ||
849 | if (get_immrbase() == in_le32(&in[i].tar)) | |
850 | return (u64)in_le32(&in[i].barh) << 32 | | |
851 | in_le32(&in[i].barl); | |
852 | } | |
853 | ||
854 | printk(KERN_WARNING "could not find PCI BAR matching IMMR\n"); | |
855 | } | |
856 | #endif | |
857 | ||
858 | #if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx) | |
859 | if (!is_mpc83xx_pci) { | |
860 | u32 base; | |
861 | ||
862 | pci_bus_read_config_dword(hose->bus, | |
863 | PCI_DEVFN(0, 0), PCI_BASE_ADDRESS_0, &base); | |
864 | return base; | |
865 | } | |
866 | #endif | |
867 | ||
868 | return 0; | |
869 | } | |
07e4f801 SW |
870 | |
871 | #if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx) | |
872 | static const struct of_device_id pci_ids[] = { | |
873 | { .compatible = "fsl,mpc8540-pci", }, | |
874 | { .compatible = "fsl,mpc8548-pcie", }, | |
875 | { .compatible = "fsl,mpc8610-pci", }, | |
876 | { .compatible = "fsl,mpc8641-pcie", }, | |
14bdc913 TT |
877 | { .compatible = "fsl,qoriq-pcie-v2.1", }, |
878 | { .compatible = "fsl,qoriq-pcie-v2.2", }, | |
879 | { .compatible = "fsl,qoriq-pcie-v2.3", }, | |
880 | { .compatible = "fsl,qoriq-pcie-v2.4", }, | |
cc6ea0dd | 881 | { .compatible = "fsl,qoriq-pcie-v3.0", }, |
14bdc913 TT |
882 | |
883 | /* | |
884 | * The following entries are for compatibility with older device | |
885 | * trees. | |
886 | */ | |
07e4f801 | 887 | { .compatible = "fsl,p1022-pcie", }, |
07e4f801 | 888 | { .compatible = "fsl,p4080-pcie", }, |
14bdc913 | 889 | |
07e4f801 SW |
890 | {}, |
891 | }; | |
892 | ||
893 | struct device_node *fsl_pci_primary; | |
894 | ||
905e75c4 | 895 | void fsl_pci_assign_primary(void) |
07e4f801 | 896 | { |
905e75c4 | 897 | struct device_node *np; |
07e4f801 SW |
898 | |
899 | /* Callers can specify the primary bus using other means. */ | |
905e75c4 JH |
900 | if (fsl_pci_primary) |
901 | return; | |
902 | ||
903 | /* If a PCI host bridge contains an ISA node, it's primary. */ | |
904 | np = of_find_node_by_type(NULL, "isa"); | |
905 | while ((fsl_pci_primary = of_get_parent(np))) { | |
906 | of_node_put(np); | |
907 | np = fsl_pci_primary; | |
908 | ||
909 | if (of_match_node(pci_ids, np) && of_device_is_available(np)) | |
910 | return; | |
07e4f801 SW |
911 | } |
912 | ||
905e75c4 JH |
913 | /* |
914 | * If there's no PCI host bridge with ISA, arbitrarily | |
915 | * designate one as primary. This can go away once | |
916 | * various bugs with primary-less systems are fixed. | |
917 | */ | |
918 | for_each_matching_node(np, pci_ids) { | |
919 | if (of_device_is_available(np)) { | |
920 | fsl_pci_primary = np; | |
921 | of_node_put(np); | |
922 | return; | |
07e4f801 SW |
923 | } |
924 | } | |
905e75c4 JH |
925 | } |
926 | ||
cad5cef6 | 927 | static int fsl_pci_probe(struct platform_device *pdev) |
905e75c4 JH |
928 | { |
929 | int ret; | |
930 | struct device_node *node; | |
4d56dec5 | 931 | #ifdef CONFIG_SWIOTLB |
905e75c4 | 932 | struct pci_controller *hose; |
4d56dec5 | 933 | #endif |
905e75c4 JH |
934 | |
935 | node = pdev->dev.of_node; | |
52c5affc | 936 | ret = fsl_add_bridge(pdev, fsl_pci_primary == node); |
07e4f801 SW |
937 | |
938 | #ifdef CONFIG_SWIOTLB | |
905e75c4 JH |
939 | if (ret == 0) { |
940 | hose = pci_find_hose_for_OF_device(pdev->dev.of_node); | |
941 | ||
942 | /* | |
943 | * if we couldn't map all of DRAM via the dma windows | |
944 | * we need SWIOTLB to handle buffers located outside of | |
945 | * dma capable memory region | |
946 | */ | |
947 | if (memblock_end_of_DRAM() - 1 > hose->dma_window_base_cur + | |
948 | hose->dma_window_size) | |
949 | ppc_swiotlb_enable = 1; | |
950 | } | |
07e4f801 | 951 | #endif |
905e75c4 JH |
952 | |
953 | mpc85xx_pci_err_probe(pdev); | |
954 | ||
955 | return 0; | |
956 | } | |
957 | ||
a393d897 JH |
958 | #ifdef CONFIG_PM |
959 | static int fsl_pci_resume(struct device *dev) | |
960 | { | |
961 | struct pci_controller *hose; | |
962 | struct resource pci_rsrc; | |
963 | ||
964 | hose = pci_find_hose_for_OF_device(dev->of_node); | |
965 | if (!hose) | |
966 | return -ENODEV; | |
967 | ||
968 | if (of_address_to_resource(dev->of_node, 0, &pci_rsrc)) { | |
969 | dev_err(dev, "Get pci register base failed."); | |
970 | return -ENODEV; | |
971 | } | |
972 | ||
d5bbe659 | 973 | setup_pci_atmu(hose); |
a393d897 JH |
974 | |
975 | return 0; | |
976 | } | |
977 | ||
978 | static const struct dev_pm_ops pci_pm_ops = { | |
979 | .resume = fsl_pci_resume, | |
980 | }; | |
981 | ||
982 | #define PCI_PM_OPS (&pci_pm_ops) | |
983 | ||
984 | #else | |
985 | ||
986 | #define PCI_PM_OPS NULL | |
987 | ||
988 | #endif | |
989 | ||
905e75c4 JH |
990 | static struct platform_driver fsl_pci_driver = { |
991 | .driver = { | |
992 | .name = "fsl-pci", | |
a393d897 | 993 | .pm = PCI_PM_OPS, |
905e75c4 JH |
994 | .of_match_table = pci_ids, |
995 | }, | |
996 | .probe = fsl_pci_probe, | |
997 | }; | |
998 | ||
999 | static int __init fsl_pci_init(void) | |
1000 | { | |
1001 | return platform_driver_register(&fsl_pci_driver); | |
07e4f801 | 1002 | } |
905e75c4 | 1003 | arch_initcall(fsl_pci_init); |
07e4f801 | 1004 | #endif |