diff options
| -rw-r--r-- | core/pci.c | 17 |
1 files changed, 12 insertions, 5 deletions
@@ -1299,6 +1299,13 @@ static void pci_add_one_node(struct phb *phb, struct pci_device *pd, uint32_t rev_class, vdid; uint32_t reg[5]; uint8_t intpin; + const uint32_t ranges_direct[] = { + /* 64-bit direct mapping. We know the bridges + * don't cover the entire address space so + * use 0xf00... as a good compromise. */ + 0x02000000, 0x0, 0x0, + 0x02000000, 0x0, 0x0, + 0xf0000000, 0x0}; pci_cfg_read32(phb, pd->bdfn, 0, &vdid); pci_cfg_read32(phb, pd->bdfn, PCI_CFG_REV_ID, &rev_class); @@ -1393,12 +1400,12 @@ static void pci_add_one_node(struct phb *phb, struct pci_device *pd, */ pci_std_swizzle_irq_map(np, pd, lstate, swizzle); - /* We do an empty ranges property for now, we haven't setup any - * bridge windows, the kernel will deal with that - * - * XXX The kernel should probably fix that up + /* Parts of the OF address translation in the kernel will fail to + * correctly translate a PCI address if translating a 1:1 mapping + * (ie. an empty ranges property). + * Instead add a ranges property that explicitly translates 1:1. */ - dt_add_property(np, "ranges", NULL, 0); + dt_add_property(np, "ranges", ranges_direct, sizeof(ranges_direct)); list_for_each(&pd->children, child, link) pci_add_one_node(phb, child, np, lstate, swizzle); |