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path: root/arch/powerpc/platforms/powernv/pci-ioda.c
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Diffstat (limited to 'arch/powerpc/platforms/powernv/pci-ioda.c')
-rw-r--r--arch/powerpc/platforms/powernv/pci-ioda.c47
1 files changed, 29 insertions, 18 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index d8140b125e62..74a5a5773b1f 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1104,16 +1104,16 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np,
u64 hub_id, int ioda_type)
{
struct pci_controller *hose;
- static int primary = 1;
struct pnv_phb *phb;
unsigned long size, m32map_off, iomap_off, pemap_off;
const u64 *prop64;
const u32 *prop32;
+ int len;
u64 phb_id;
void *aux;
long rc;
- pr_info(" Initializing IODA%d OPAL PHB %s\n", ioda_type, np->full_name);
+ pr_info("Initializing IODA%d OPAL PHB %s\n", ioda_type, np->full_name);
prop64 = of_get_property(np, "ibm,opal-phbid", NULL);
if (!prop64) {
@@ -1124,20 +1124,31 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np,
pr_debug(" PHB-ID : 0x%016llx\n", phb_id);
phb = alloc_bootmem(sizeof(struct pnv_phb));
- if (phb) {
- memset(phb, 0, sizeof(struct pnv_phb));
- phb->hose = hose = pcibios_alloc_controller(np);
+ if (!phb) {
+ pr_err(" Out of memory !\n");
+ return;
}
- if (!phb || !phb->hose) {
- pr_err("PCI: Failed to allocate PCI controller for %s\n",
+
+ /* Allocate PCI controller */
+ memset(phb, 0, sizeof(struct pnv_phb));
+ phb->hose = hose = pcibios_alloc_controller(np);
+ if (!phb->hose) {
+ pr_err(" Can't allocate PCI controller for %s\n",
np->full_name);
+ free_bootmem((unsigned long)phb, sizeof(struct pnv_phb));
return;
}
spin_lock_init(&phb->lock);
- /* XXX Use device-tree */
- hose->first_busno = 0;
- hose->last_busno = 0xff;
+ prop32 = of_get_property(np, "bus-range", &len);
+ if (prop32 && len == 8) {
+ hose->first_busno = prop32[0];
+ hose->last_busno = prop32[1];
+ } else {
+ pr_warn(" Broken <bus-range> on %s\n", np->full_name);
+ hose->first_busno = 0;
+ hose->last_busno = 0xff;
+ }
hose->private_data = phb;
phb->hub_id = hub_id;
phb->opal_id = phb_id;
@@ -1152,8 +1163,7 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np,
phb->model = PNV_PHB_MODEL_UNKNOWN;
/* Parse 32-bit and IO ranges (if any) */
- pci_process_bridge_OF_ranges(phb->hose, np, primary);
- primary = 0;
+ pci_process_bridge_OF_ranges(hose, np, !hose->global_number);
/* Get registers */
phb->regs = of_iomap(np, 0);
@@ -1177,22 +1187,23 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np,
phb->ioda.io_segsize = phb->ioda.io_size / phb->ioda.total_pe;
phb->ioda.io_pci_base = 0; /* XXX calculate this ? */
- /* Allocate aux data & arrays
- *
- * XXX TODO: Don't allocate io segmap on PHB3
- */
+ /* Allocate aux data & arrays. We don't have IO ports on PHB3 */
size = _ALIGN_UP(phb->ioda.total_pe / 8, sizeof(unsigned long));
m32map_off = size;
size += phb->ioda.total_pe * sizeof(phb->ioda.m32_segmap[0]);
iomap_off = size;
- size += phb->ioda.total_pe * sizeof(phb->ioda.io_segmap[0]);
+ if (phb->type == PNV_PHB_IODA1) {
+ iomap_off = size;
+ size += phb->ioda.total_pe * sizeof(phb->ioda.io_segmap[0]);
+ }
pemap_off = size;
size += phb->ioda.total_pe * sizeof(struct pnv_ioda_pe);
aux = alloc_bootmem(size);
memset(aux, 0, size);
phb->ioda.pe_alloc = aux;
phb->ioda.m32_segmap = aux + m32map_off;
- phb->ioda.io_segmap = aux + iomap_off;
+ if (phb->type == PNV_PHB_IODA1)
+ phb->ioda.io_segmap = aux + iomap_off;
phb->ioda.pe_array = aux + pemap_off;
set_bit(0, phb->ioda.pe_alloc);