BCM1480 HT support

    
PCI support code for PLX 7250 PCI-X tunnel on BCM91480B BigSur board.
    
Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 11 insertions, 6 deletions

diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index 170c6650f961..21402ffd7c98 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -127,15 +127,20 @@ static int __init pcibios_init(void)
                 if (!hose->iommu)
                         PCI_DMA_BUS_IS_PHYS = 1;
 
+                if (hose->get_busno && pci_probe_only)
+                        next_busno = (*hose->get_busno)();
+
                 bus = pci_scan_bus(next_busno, hose->pci_ops, hose);
                 hose->bus = bus;
                 hose->need_domain_info = need_domain_info;
-                next_busno = bus->subordinate + 1;
-                /* Don't allow 8-bit bus number overflow inside the hose -
-                   reserve some space for bridges. */
-                if (next_busno > 224) {
-                        next_busno = 0;
-                        need_domain_info = 1;
+                if (bus) {
+                        next_busno = bus->subordinate + 1;
+                        /* Don't allow 8-bit bus number overflow inside the hose -
+                           reserve some space for bridges. */
+                        if (next_busno > 224) {
+                                next_busno = 0;
+                                need_domain_info = 1;
+                        }
                 }
                 continue;