--- a/arch/arm/mach-cns3xxx/pcie.c
+++ b/arch/arm/mach-cns3xxx/pcie.c
@@ -86,6 +86,79 @@ static void __iomem *cns3xxx_pci_map_bus
- return base + (where & 0xffc) + (devfn << 12);
+ return base + where + (devfn << 12);
}
+static inline int check_master_abort(struct pci_bus *bus, unsigned int devfn, int where)
{
@@ -95,6 +168,11 @@ static int cns3xxx_pci_read_config(struc
- ret = pci_generic_config_read32(bus, devfn, where, size, val);
+ ret = pci_generic_config_read(bus, devfn, where, size, val);
+ if (check_master_abort(bus, devfn, where)) {
+ printk(KERN_ERR "pci error: %04d:%02x:%02x.%02x %02x(%d)= master_abort on read\n", pci_domain_nr(bus), bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size);