diff options
Diffstat (limited to 'drivers/pci/pci-uclass.c')
-rw-r--r-- | drivers/pci/pci-uclass.c | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c index 1cd1e40..46e9c71 100644 --- a/drivers/pci/pci-uclass.c +++ b/drivers/pci/pci-uclass.c @@ -810,8 +810,8 @@ error: return ret; } -static int decode_regions(struct pci_controller *hose, ofnode parent_node, - ofnode node) +static void decode_regions(struct pci_controller *hose, ofnode parent_node, + ofnode node) { int pci_addr_cells, addr_cells, size_cells; int cells_per_record; @@ -820,8 +820,11 @@ static int decode_regions(struct pci_controller *hose, ofnode parent_node, int i; prop = ofnode_get_property(node, "ranges", &len); - if (!prop) - return -EINVAL; + if (!prop) { + debug("%s: Cannot decode regions\n", __func__); + return; + } + pci_addr_cells = ofnode_read_simple_addr_cells(node); addr_cells = ofnode_read_simple_addr_cells(parent_node); size_cells = ofnode_read_simple_size_cells(node); @@ -883,7 +886,7 @@ static int decode_regions(struct pci_controller *hose, ofnode parent_node, bd_t *bd = gd->bd; if (!bd) - return 0; + return; for (i = 0; i < CONFIG_NR_DRAM_BANKS; ++i) { if (bd->bi_dram[i].size) { @@ -908,13 +911,12 @@ static int decode_regions(struct pci_controller *hose, ofnode parent_node, base, size, PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); #endif - return 0; + return; } static int pci_uclass_pre_probe(struct udevice *bus) { struct pci_controller *hose; - int ret; debug("%s, bus=%d/%s, parent=%s\n", __func__, bus->seq, bus->name, bus->parent->name); @@ -923,12 +925,7 @@ static int pci_uclass_pre_probe(struct udevice *bus) /* For bridges, use the top-level PCI controller */ if (!device_is_on_pci_bus(bus)) { hose->ctlr = bus; - ret = decode_regions(hose, dev_ofnode(bus->parent), - dev_ofnode(bus)); - if (ret) { - debug("%s: Cannot decode regions\n", __func__); - return ret; - } + decode_regions(hose, dev_ofnode(bus->parent), dev_ofnode(bus)); } else { struct pci_controller *parent_hose; @@ -1185,6 +1182,11 @@ static int _dm_pci_bus_to_phys(struct udevice *ctlr, struct pci_region *res; int i; + if (hose->region_count == 0) { + *pa = bus_addr; + return 0; + } + for (i = 0; i < hose->region_count; i++) { res = &hose->regions[i]; @@ -1248,6 +1250,11 @@ int _dm_pci_phys_to_bus(struct udevice *dev, phys_addr_t phys_addr, ctlr = pci_get_controller(dev); hose = dev_get_uclass_priv(ctlr); + if (hose->region_count == 0) { + *ba = phys_addr; + return 0; + } + for (i = 0; i < hose->region_count; i++) { res = &hose->regions[i]; |