diff options
Diffstat (limited to 'arch/powerpc/kernel/pci_32.c')
| -rw-r--r-- | arch/powerpc/kernel/pci_32.c | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c index a33c2820c200..20a1192de1a2 100644 --- a/arch/powerpc/kernel/pci_32.c +++ b/arch/powerpc/kernel/pci_32.c @@ -842,120 +842,6 @@ pci_device_from_OF_node(struct device_node* node, u8* bus, u8* devfn) } EXPORT_SYMBOL(pci_device_from_OF_node); -void __init -pci_process_bridge_OF_ranges(struct pci_controller *hose, - struct device_node *dev, int primary) -{ - static unsigned int static_lc_ranges[256] __initdata; - const unsigned int *dt_ranges; - unsigned int *lc_ranges, *ranges, *prev, size; - int rlen = 0, orig_rlen; - int memno = 0; - struct resource *res; - int np, na = of_n_addr_cells(dev); - np = na + 5; - - /* First we try to merge ranges to fix a problem with some pmacs - * that can have more than 3 ranges, fortunately using contiguous - * addresses -- BenH - */ - dt_ranges = of_get_property(dev, "ranges", &rlen); - if (!dt_ranges) - return; - /* Sanity check, though hopefully that never happens */ - if (rlen > sizeof(static_lc_ranges)) { - printk(KERN_WARNING "OF ranges property too large !\n"); - rlen = sizeof(static_lc_ranges); - } - lc_ranges = static_lc_ranges; - memcpy(lc_ranges, dt_ranges, rlen); - orig_rlen = rlen; - - /* Let's work on a copy of the "ranges" property instead of damaging - * the device-tree image in memory - */ - ranges = lc_ranges; - prev = NULL; - while ((rlen -= np * sizeof(unsigned int)) >= 0) { - if (prev) { - if (prev[0] == ranges[0] && prev[1] == ranges[1] && - (prev[2] + prev[na+4]) == ranges[2] && - (prev[na+2] + prev[na+4]) == ranges[na+2]) { - prev[na+4] += ranges[na+4]; - ranges[0] = 0; - ranges += np; - continue; - } - } - prev = ranges; - ranges += np; - } - - /* - * The ranges property is laid out as an array of elements, - * each of which comprises: - * cells 0 - 2: a PCI address - * cells 3 or 3+4: a CPU physical address - * (size depending on dev->n_addr_cells) - * cells 4+5 or 5+6: the size of the range - */ - ranges = lc_ranges; - rlen = orig_rlen; - while (ranges && (rlen -= np * sizeof(unsigned int)) >= 0) { - res = NULL; - size = ranges[na+4]; - switch ((ranges[0] >> 24) & 0x3) { - case 1: /* I/O space */ - if (ranges[2] != 0) - break; - hose->io_base_phys = ranges[na+2]; - /* limit I/O space to 16MB */ - if (size > 0x01000000) - size = 0x01000000; - hose->io_base_virt = ioremap(ranges[na+2], size); - if (primary) - isa_io_base = (unsigned long) hose->io_base_virt; - res = &hose->io_resource; - res->flags = IORESOURCE_IO; - res->start = ranges[2]; - DBG("PCI: IO 0x%llx -> 0x%llx\n", - (u64)res->start, (u64)res->start + size - 1); - break; - case 2: /* memory space */ - memno = 0; - if (ranges[1] == 0 && ranges[2] == 0 - && ranges[na+4] <= (16 << 20)) { - /* 1st 16MB, i.e. ISA memory area */ - if (primary) - isa_mem_base = ranges[na+2]; - memno = 1; - } - while (memno < 3 && hose->mem_resources[memno].flags) - ++memno; - if (memno == 0) - hose->pci_mem_offset = ranges[na+2] - ranges[2]; - if (memno < 3) { - res = &hose->mem_resources[memno]; - res->flags = IORESOURCE_MEM; - if(ranges[0] & 0x40000000) - res->flags |= IORESOURCE_PREFETCH; - res->start = ranges[na+2]; - DBG("PCI: MEM[%d] 0x%llx -> 0x%llx\n", memno, - (u64)res->start, (u64)res->start + size - 1); - } - break; - } - if (res != NULL) { - res->name = dev->full_name; - res->end = res->start + size - 1; - res->parent = NULL; - res->sibling = NULL; - res->child = NULL; - } - ranges += np; - } -} - /* We create the "pci-OF-bus-map" property now so it appears in the * /proc device tree */ |
