2 * MPC83xx/85xx/86xx PCI/PCIE support routing.
4 * Copyright 2007-2011 Freescale Semiconductor, Inc.
5 * Copyright 2008-2009 MontaVista Software, Inc.
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>
11 * MPC83xx PCI-Express support:
12 * Tony Li <tony.li@freescale.com>
13 * Anton Vorontsov <avorontsov@ru.mvista.com>
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.
20 #include <linux/kernel.h>
21 #include <linux/pci.h>
22 #include <linux/delay.h>
23 #include <linux/string.h>
24 #include <linux/init.h>
25 #include <linux/bootmem.h>
26 #include <linux/memblock.h>
27 #include <linux/log2.h>
28 #include <linux/slab.h>
32 #include <asm/pci-bridge.h>
33 #include <asm/machdep.h>
34 #include <sysdev/fsl_soc.h>
35 #include <sysdev/fsl_pci.h>
37 static int fsl_pcie_bus_fixup, is_mpc83xx_pci;
39 static void __init quirk_fsl_pcie_header(struct pci_dev *dev)
43 /* if we aren't a PCIe don't bother */
44 if (!pci_find_capability(dev, PCI_CAP_ID_EXP))
47 /* if we aren't in host mode don't bother */
48 pci_read_config_byte(dev, PCI_CLASS_PROG, &progif);
52 dev->class = PCI_CLASS_BRIDGE_PCI << 8;
53 fsl_pcie_bus_fixup = 1;
57 static int __init fsl_pcie_check_link(struct pci_controller *hose)
61 early_read_config_dword(hose, 0, 0, PCIE_LTSSM, &val);
62 if (val < PCIE_LTSSM_L0)
67 #if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx)
69 #define MAX_PHYS_ADDR_BITS 40
70 static u64 pci64_dma_offset = 1ull << MAX_PHYS_ADDR_BITS;
72 static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask)
74 if (!dev->dma_mask || !dma_supported(dev, dma_mask))
78 * Fixup PCI devices that are able to DMA to above the physical
79 * address width of the SoC such that we can address any internal
80 * SoC address from across PCI if needed
82 if ((dev->bus == &pci_bus_type) &&
83 dma_mask >= DMA_BIT_MASK(MAX_PHYS_ADDR_BITS)) {
84 set_dma_ops(dev, &dma_direct_ops);
85 set_dma_offset(dev, pci64_dma_offset);
88 *dev->dma_mask = dma_mask;
92 static int __init setup_one_atmu(struct ccsr_pci __iomem *pci,
93 unsigned int index, const struct resource *res,
94 resource_size_t offset)
96 resource_size_t pci_addr = res->start - offset;
97 resource_size_t phys_addr = res->start;
98 resource_size_t size = resource_size(res);
99 u32 flags = 0x80044000; /* enable & mem R/W */
102 pr_debug("PCI MEM resource start 0x%016llx, size 0x%016llx.\n",
103 (u64)res->start, (u64)size);
105 if (res->flags & IORESOURCE_PREFETCH)
106 flags |= 0x10000000; /* enable relaxed ordering */
108 for (i = 0; size > 0; i++) {
109 unsigned int bits = min(__ilog2(size),
110 __ffs(pci_addr | phys_addr));
115 out_be32(&pci->pow[index + i].potar, pci_addr >> 12);
116 out_be32(&pci->pow[index + i].potear, (u64)pci_addr >> 44);
117 out_be32(&pci->pow[index + i].powbar, phys_addr >> 12);
118 out_be32(&pci->pow[index + i].powar, flags | (bits - 1));
120 pci_addr += (resource_size_t)1U << bits;
121 phys_addr += (resource_size_t)1U << bits;
122 size -= (resource_size_t)1U << bits;
128 /* atmu setup for fsl pci/pcie controller */
129 static void __init setup_pci_atmu(struct pci_controller *hose,
130 struct resource *rsrc)
132 struct ccsr_pci __iomem *pci;
133 int i, j, n, mem_log, win_idx = 3, start_idx = 1, end_idx = 4;
134 u64 mem, sz, paddr_hi = 0;
135 u64 paddr_lo = ULLONG_MAX;
136 u32 pcicsrbar = 0, pcicsrbar_sz;
137 u32 piwar = PIWAR_EN | PIWAR_PF | PIWAR_TGI_LOCAL |
138 PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP;
139 char *name = hose->dn->full_name;
143 pr_debug("PCI memory map start 0x%016llx, size 0x%016llx\n",
144 (u64)rsrc->start, (u64)resource_size(rsrc));
146 if (of_device_is_compatible(hose->dn, "fsl,qoriq-pcie-v2.2")) {
152 pci = ioremap(rsrc->start, resource_size(rsrc));
154 dev_err(hose->parent, "Unable to map ATMU registers\n");
158 /* Disable all windows (except powar0 since it's ignored) */
159 for(i = 1; i < 5; i++)
160 out_be32(&pci->pow[i].powar, 0);
161 for (i = start_idx; i < end_idx; i++)
162 out_be32(&pci->piw[i].piwar, 0);
164 /* Setup outbound MEM window */
165 for(i = 0, j = 1; i < 3; i++) {
166 if (!(hose->mem_resources[i].flags & IORESOURCE_MEM))
169 paddr_lo = min(paddr_lo, (u64)hose->mem_resources[i].start);
170 paddr_hi = max(paddr_hi, (u64)hose->mem_resources[i].end);
172 n = setup_one_atmu(pci, j, &hose->mem_resources[i],
173 hose->pci_mem_offset);
175 if (n < 0 || j >= 5) {
176 pr_err("Ran out of outbound PCI ATMUs for resource %d!\n", i);
177 hose->mem_resources[i].flags |= IORESOURCE_DISABLED;
182 /* Setup outbound IO window */
183 if (hose->io_resource.flags & IORESOURCE_IO) {
185 pr_err("Ran out of outbound PCI ATMUs for IO resource\n");
187 pr_debug("PCI IO resource start 0x%016llx, size 0x%016llx, "
188 "phy base 0x%016llx.\n",
189 (u64)hose->io_resource.start,
190 (u64)resource_size(&hose->io_resource),
191 (u64)hose->io_base_phys);
192 out_be32(&pci->pow[j].potar, (hose->io_resource.start >> 12));
193 out_be32(&pci->pow[j].potear, 0);
194 out_be32(&pci->pow[j].powbar, (hose->io_base_phys >> 12));
196 out_be32(&pci->pow[j].powar, 0x80088000
197 | (__ilog2(hose->io_resource.end
198 - hose->io_resource.start + 1) - 1));
202 /* convert to pci address space */
203 paddr_hi -= hose->pci_mem_offset;
204 paddr_lo -= hose->pci_mem_offset;
206 if (paddr_hi == paddr_lo) {
207 pr_err("%s: No outbound window space\n", name);
212 pr_err("%s: No space for inbound window\n", name);
216 /* setup PCSRBAR/PEXCSRBAR */
217 early_write_config_dword(hose, 0, 0, PCI_BASE_ADDRESS_0, 0xffffffff);
218 early_read_config_dword(hose, 0, 0, PCI_BASE_ADDRESS_0, &pcicsrbar_sz);
219 pcicsrbar_sz = ~pcicsrbar_sz + 1;
221 if (paddr_hi < (0x100000000ull - pcicsrbar_sz) ||
222 (paddr_lo > 0x100000000ull))
223 pcicsrbar = 0x100000000ull - pcicsrbar_sz;
225 pcicsrbar = (paddr_lo - pcicsrbar_sz) & -pcicsrbar_sz;
226 early_write_config_dword(hose, 0, 0, PCI_BASE_ADDRESS_0, pcicsrbar);
228 paddr_lo = min(paddr_lo, (u64)pcicsrbar);
230 pr_info("%s: PCICSRBAR @ 0x%x\n", name, pcicsrbar);
232 /* Setup inbound mem window */
233 mem = memblock_end_of_DRAM();
236 * The msi-address-64 property, if it exists, indicates the physical
237 * address of the MSIIR register. Normally, this register is located
238 * inside CCSR, so the ATMU that covers all of CCSR is used. But if
239 * this property exists, then we normally need to create a new ATMU
240 * for it. For now, however, we cheat. The only entity that creates
241 * this property is the Freescale hypervisor, and the address is
242 * specified in the partition configuration. Typically, the address
243 * is located in the page immediately after the end of DDR. If so, we
244 * can avoid allocating a new ATMU by extending the DDR ATMU by one
247 reg = of_get_property(hose->dn, "msi-address-64", &len);
248 if (reg && (len == sizeof(u64))) {
249 u64 address = be64_to_cpup(reg);
251 if ((address >= mem) && (address < (mem + PAGE_SIZE))) {
252 pr_info("%s: extending DDR ATMU to cover MSIIR", name);
255 /* TODO: Create a new ATMU for MSIIR */
256 pr_warn("%s: msi-address-64 address of %llx is "
257 "unsupported\n", name, address);
261 sz = min(mem, paddr_lo);
262 mem_log = __ilog2_u64(sz);
264 /* PCIe can overmap inbound & outbound since RX & TX are separated */
265 if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) {
266 /* Size window to exact size if power-of-two or one size up */
267 if ((1ull << mem_log) != mem) {
268 if ((1ull << mem_log) > mem)
269 pr_info("%s: Setting PCI inbound window "
270 "greater than memory size\n", name);
274 piwar |= ((mem_log - 1) & PIWAR_SZ_MASK);
276 /* Setup inbound memory window */
277 out_be32(&pci->piw[win_idx].pitar, 0x00000000);
278 out_be32(&pci->piw[win_idx].piwbar, 0x00000000);
279 out_be32(&pci->piw[win_idx].piwar, piwar);
282 hose->dma_window_base_cur = 0x00000000;
283 hose->dma_window_size = (resource_size_t)sz;
286 * if we have >4G of memory setup second PCI inbound window to
287 * let devices that are 64-bit address capable to work w/o
288 * SWIOTLB and access the full range of memory
291 mem_log = __ilog2_u64(mem);
293 /* Size window up if we dont fit in exact power-of-2 */
294 if ((1ull << mem_log) != mem)
297 piwar = (piwar & ~PIWAR_SZ_MASK) | (mem_log - 1);
299 /* Setup inbound memory window */
300 out_be32(&pci->piw[win_idx].pitar, 0x00000000);
301 out_be32(&pci->piw[win_idx].piwbear,
302 pci64_dma_offset >> 44);
303 out_be32(&pci->piw[win_idx].piwbar,
304 pci64_dma_offset >> 12);
305 out_be32(&pci->piw[win_idx].piwar, piwar);
308 * install our own dma_set_mask handler to fixup dma_ops
311 ppc_md.dma_set_mask = fsl_pci_dma_set_mask;
313 pr_info("%s: Setup 64-bit PCI DMA window\n", name);
318 /* Setup inbound memory window */
319 out_be32(&pci->piw[win_idx].pitar, paddr >> 12);
320 out_be32(&pci->piw[win_idx].piwbar, paddr >> 12);
321 out_be32(&pci->piw[win_idx].piwar, (piwar | (mem_log - 1)));
324 paddr += 1ull << mem_log;
325 sz -= 1ull << mem_log;
328 mem_log = __ilog2_u64(sz);
329 piwar |= (mem_log - 1);
331 out_be32(&pci->piw[win_idx].pitar, paddr >> 12);
332 out_be32(&pci->piw[win_idx].piwbar, paddr >> 12);
333 out_be32(&pci->piw[win_idx].piwar, piwar);
336 paddr += 1ull << mem_log;
339 hose->dma_window_base_cur = 0x00000000;
340 hose->dma_window_size = (resource_size_t)paddr;
343 if (hose->dma_window_size < mem) {
344 #ifndef CONFIG_SWIOTLB
345 pr_err("%s: ERROR: Memory size exceeds PCI ATMU ability to "
346 "map - enable CONFIG_SWIOTLB to avoid dma errors.\n",
349 /* adjusting outbound windows could reclaim space in mem map */
350 if (paddr_hi < 0xffffffffull)
351 pr_warning("%s: WARNING: Outbound window cfg leaves "
352 "gaps in memory map. Adjusting the memory map "
353 "could reduce unnecessary bounce buffering.\n",
356 pr_info("%s: DMA window size is 0x%llx\n", name,
357 (u64)hose->dma_window_size);
364 static void __init setup_pci_cmd(struct pci_controller *hose)
369 early_read_config_word(hose, 0, 0, PCI_COMMAND, &cmd);
370 cmd |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY
372 early_write_config_word(hose, 0, 0, PCI_COMMAND, cmd);
374 cap_x = early_find_capability(hose, 0, 0, PCI_CAP_ID_PCIX);
376 int pci_x_cmd = cap_x + PCI_X_CMD;
377 cmd = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ
378 | PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E;
379 early_write_config_word(hose, 0, 0, pci_x_cmd, cmd);
381 early_write_config_byte(hose, 0, 0, PCI_LATENCY_TIMER, 0x80);
385 void fsl_pcibios_fixup_bus(struct pci_bus *bus)
387 struct pci_controller *hose = pci_bus_to_host(bus);
390 if ((bus->parent == hose->bus) &&
391 ((fsl_pcie_bus_fixup &&
392 early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) ||
393 (hose->indirect_type & PPC_INDIRECT_TYPE_NO_PCIE_LINK)))
395 for (i = 0; i < 4; ++i) {
396 struct resource *res = bus->resource[i];
397 struct resource *par = bus->parent->resource[i];
404 res->start = par->start;
406 res->flags = par->flags;
412 int __init fsl_add_bridge(struct device_node *dev, int is_primary)
415 struct pci_controller *hose;
416 struct resource rsrc;
417 const int *bus_range;
420 if (!of_device_is_available(dev)) {
421 pr_warning("%s: disabled\n", dev->full_name);
425 pr_debug("Adding PCI host bridge %s\n", dev->full_name);
427 /* Fetch host bridge registers address */
428 if (of_address_to_resource(dev, 0, &rsrc)) {
429 printk(KERN_WARNING "Can't get pci register base!");
433 /* Get bus range if any */
434 bus_range = of_get_property(dev, "bus-range", &len);
435 if (bus_range == NULL || len < 2 * sizeof(int))
436 printk(KERN_WARNING "Can't get bus-range for %s, assume"
437 " bus 0\n", dev->full_name);
439 pci_add_flags(PCI_REASSIGN_ALL_BUS);
440 hose = pcibios_alloc_controller(dev);
444 hose->first_busno = bus_range ? bus_range[0] : 0x0;
445 hose->last_busno = bus_range ? bus_range[1] : 0xff;
447 setup_indirect_pci(hose, rsrc.start, rsrc.start + 0x4,
448 PPC_INDIRECT_TYPE_BIG_ENDIAN);
450 early_read_config_byte(hose, 0, 0, PCI_CLASS_PROG, &progif);
451 if ((progif & 1) == 1) {
452 /* unmap cfg_data & cfg_addr separately if not on same page */
453 if (((unsigned long)hose->cfg_data & PAGE_MASK) !=
454 ((unsigned long)hose->cfg_addr & PAGE_MASK))
455 iounmap(hose->cfg_data);
456 iounmap(hose->cfg_addr);
457 pcibios_free_controller(hose);
463 /* check PCI express link status */
464 if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) {
465 hose->indirect_type |= PPC_INDIRECT_TYPE_EXT_REG |
466 PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS;
467 if (fsl_pcie_check_link(hose))
468 hose->indirect_type |= PPC_INDIRECT_TYPE_NO_PCIE_LINK;
471 printk(KERN_INFO "Found FSL PCI host bridge at 0x%016llx. "
472 "Firmware bus number: %d->%d\n",
473 (unsigned long long)rsrc.start, hose->first_busno,
476 pr_debug(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n",
477 hose, hose->cfg_addr, hose->cfg_data);
479 /* Interpret the "ranges" property */
480 /* This also maps the I/O region and sets isa_io/mem_base */
481 pci_process_bridge_OF_ranges(hose, dev, is_primary);
483 /* Setup PEX window registers */
484 setup_pci_atmu(hose, &rsrc);
488 #endif /* CONFIG_FSL_SOC_BOOKE || CONFIG_PPC_86xx */
490 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID, quirk_fsl_pcie_header);
492 #if defined(CONFIG_PPC_83xx) || defined(CONFIG_PPC_MPC512x)
493 struct mpc83xx_pcie_priv {
494 void __iomem *cfg_type0;
495 void __iomem *cfg_type1;
499 struct pex_inbound_window {
507 * With the convention of u-boot, the PCIE outbound window 0 serves
508 * as configuration transactions outbound.
510 #define PEX_OUTWIN0_BAR 0xCA4
511 #define PEX_OUTWIN0_TAL 0xCA8
512 #define PEX_OUTWIN0_TAH 0xCAC
513 #define PEX_RC_INWIN_BASE 0xE60
514 #define PEX_RCIWARn_EN 0x1
516 static int mpc83xx_pcie_exclude_device(struct pci_bus *bus, unsigned int devfn)
518 struct pci_controller *hose = pci_bus_to_host(bus);
520 if (hose->indirect_type & PPC_INDIRECT_TYPE_NO_PCIE_LINK)
521 return PCIBIOS_DEVICE_NOT_FOUND;
523 * Workaround for the HW bug: for Type 0 configure transactions the
524 * PCI-E controller does not check the device number bits and just
525 * assumes that the device number bits are 0.
527 if (bus->number == hose->first_busno ||
528 bus->primary == hose->first_busno) {
530 return PCIBIOS_DEVICE_NOT_FOUND;
533 if (ppc_md.pci_exclude_device) {
534 if (ppc_md.pci_exclude_device(hose, bus->number, devfn))
535 return PCIBIOS_DEVICE_NOT_FOUND;
538 return PCIBIOS_SUCCESSFUL;
541 static void __iomem *mpc83xx_pcie_remap_cfg(struct pci_bus *bus,
542 unsigned int devfn, int offset)
544 struct pci_controller *hose = pci_bus_to_host(bus);
545 struct mpc83xx_pcie_priv *pcie = hose->dn->data;
546 u32 dev_base = bus->number << 24 | devfn << 16;
549 ret = mpc83xx_pcie_exclude_device(bus, devfn);
556 if (bus->number == hose->first_busno)
557 return pcie->cfg_type0 + offset;
559 if (pcie->dev_base == dev_base)
562 out_le32(pcie->cfg_type0 + PEX_OUTWIN0_TAL, dev_base);
564 pcie->dev_base = dev_base;
566 return pcie->cfg_type1 + offset;
569 static int mpc83xx_pcie_read_config(struct pci_bus *bus, unsigned int devfn,
570 int offset, int len, u32 *val)
572 void __iomem *cfg_addr;
574 cfg_addr = mpc83xx_pcie_remap_cfg(bus, devfn, offset);
576 return PCIBIOS_DEVICE_NOT_FOUND;
580 *val = in_8(cfg_addr);
583 *val = in_le16(cfg_addr);
586 *val = in_le32(cfg_addr);
590 return PCIBIOS_SUCCESSFUL;
593 static int mpc83xx_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
594 int offset, int len, u32 val)
596 struct pci_controller *hose = pci_bus_to_host(bus);
597 void __iomem *cfg_addr;
599 cfg_addr = mpc83xx_pcie_remap_cfg(bus, devfn, offset);
601 return PCIBIOS_DEVICE_NOT_FOUND;
603 /* PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS */
604 if (offset == PCI_PRIMARY_BUS && bus->number == hose->first_busno)
609 out_8(cfg_addr, val);
612 out_le16(cfg_addr, val);
615 out_le32(cfg_addr, val);
619 return PCIBIOS_SUCCESSFUL;
622 static struct pci_ops mpc83xx_pcie_ops = {
623 .read = mpc83xx_pcie_read_config,
624 .write = mpc83xx_pcie_write_config,
627 static int __init mpc83xx_pcie_setup(struct pci_controller *hose,
628 struct resource *reg)
630 struct mpc83xx_pcie_priv *pcie;
634 pcie = zalloc_maybe_bootmem(sizeof(*pcie), GFP_KERNEL);
638 pcie->cfg_type0 = ioremap(reg->start, resource_size(reg));
639 if (!pcie->cfg_type0)
642 cfg_bar = in_le32(pcie->cfg_type0 + PEX_OUTWIN0_BAR);
644 /* PCI-E isn't configured. */
649 pcie->cfg_type1 = ioremap(cfg_bar, 0x1000);
650 if (!pcie->cfg_type1)
653 WARN_ON(hose->dn->data);
654 hose->dn->data = pcie;
655 hose->ops = &mpc83xx_pcie_ops;
657 out_le32(pcie->cfg_type0 + PEX_OUTWIN0_TAH, 0);
658 out_le32(pcie->cfg_type0 + PEX_OUTWIN0_TAL, 0);
660 if (fsl_pcie_check_link(hose))
661 hose->indirect_type |= PPC_INDIRECT_TYPE_NO_PCIE_LINK;
665 iounmap(pcie->cfg_type0);
672 int __init mpc83xx_add_bridge(struct device_node *dev)
676 struct pci_controller *hose;
677 struct resource rsrc_reg;
678 struct resource rsrc_cfg;
679 const int *bus_range;
684 if (!of_device_is_available(dev)) {
685 pr_warning("%s: disabled by the firmware.\n",
689 pr_debug("Adding PCI host bridge %s\n", dev->full_name);
691 /* Fetch host bridge registers address */
692 if (of_address_to_resource(dev, 0, &rsrc_reg)) {
693 printk(KERN_WARNING "Can't get pci register base!\n");
697 memset(&rsrc_cfg, 0, sizeof(rsrc_cfg));
699 if (of_address_to_resource(dev, 1, &rsrc_cfg)) {
701 "No pci config register base in dev tree, "
704 * MPC83xx supports up to two host controllers
705 * one at 0x8500 has config space registers at 0x8300
706 * one at 0x8600 has config space registers at 0x8380
708 if ((rsrc_reg.start & 0xfffff) == 0x8500)
709 rsrc_cfg.start = (rsrc_reg.start & 0xfff00000) + 0x8300;
710 else if ((rsrc_reg.start & 0xfffff) == 0x8600)
711 rsrc_cfg.start = (rsrc_reg.start & 0xfff00000) + 0x8380;
714 * Controller at offset 0x8500 is primary
716 if ((rsrc_reg.start & 0xfffff) == 0x8500)
721 /* Get bus range if any */
722 bus_range = of_get_property(dev, "bus-range", &len);
723 if (bus_range == NULL || len < 2 * sizeof(int)) {
724 printk(KERN_WARNING "Can't get bus-range for %s, assume"
725 " bus 0\n", dev->full_name);
728 pci_add_flags(PCI_REASSIGN_ALL_BUS);
729 hose = pcibios_alloc_controller(dev);
733 hose->first_busno = bus_range ? bus_range[0] : 0;
734 hose->last_busno = bus_range ? bus_range[1] : 0xff;
736 if (of_device_is_compatible(dev, "fsl,mpc8314-pcie")) {
737 ret = mpc83xx_pcie_setup(hose, &rsrc_reg);
741 setup_indirect_pci(hose, rsrc_cfg.start,
742 rsrc_cfg.start + 4, 0);
745 printk(KERN_INFO "Found FSL PCI host bridge at 0x%016llx. "
746 "Firmware bus number: %d->%d\n",
747 (unsigned long long)rsrc_reg.start, hose->first_busno,
750 pr_debug(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n",
751 hose, hose->cfg_addr, hose->cfg_data);
753 /* Interpret the "ranges" property */
754 /* This also maps the I/O region and sets isa_io/mem_base */
755 pci_process_bridge_OF_ranges(hose, dev, primary);
759 pcibios_free_controller(hose);
762 #endif /* CONFIG_PPC_83xx */
764 u64 fsl_pci_immrbar_base(struct pci_controller *hose)
766 #ifdef CONFIG_PPC_83xx
767 if (is_mpc83xx_pci) {
768 struct mpc83xx_pcie_priv *pcie = hose->dn->data;
769 struct pex_inbound_window *in;
772 /* Walk the Root Complex Inbound windows to match IMMR base */
773 in = pcie->cfg_type0 + PEX_RC_INWIN_BASE;
774 for (i = 0; i < 4; i++) {
775 /* not enabled, skip */
776 if (!in_le32(&in[i].ar) & PEX_RCIWARn_EN)
779 if (get_immrbase() == in_le32(&in[i].tar))
780 return (u64)in_le32(&in[i].barh) << 32 |
781 in_le32(&in[i].barl);
784 printk(KERN_WARNING "could not find PCI BAR matching IMMR\n");
788 #if defined(CONFIG_FSL_SOC_BOOKE) || defined(CONFIG_PPC_86xx)
789 if (!is_mpc83xx_pci) {
792 pci_bus_read_config_dword(hose->bus,
793 PCI_DEVFN(0, 0), PCI_BASE_ADDRESS_0, &base);