diff options
| -rw-r--r-- | Documentation/devicetree/bindings/pci/host-generic-pci.txt | 5 | ||||
| -rw-r--r-- | drivers/pci/host/pci-host-generic.c | 4 |
2 files changed, 5 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/pci/host-generic-pci.txt b/Documentation/devicetree/bindings/pci/host-generic-pci.txt index cf3e205e0b7e..3f1d3fca62bb 100644 --- a/Documentation/devicetree/bindings/pci/host-generic-pci.txt +++ b/Documentation/devicetree/bindings/pci/host-generic-pci.txt @@ -34,8 +34,9 @@ Properties of the host controller node: - #size-cells : Must be 2. - reg : The Configuration Space base address and size, as accessed - from the parent bus. - + from the parent bus. The base address corresponds to + the first bus in the "bus-range" property. If no + "bus-range" is specified, this will be bus 0 (the default). Properties of the /chosen node: diff --git a/drivers/pci/host/pci-host-generic.c b/drivers/pci/host/pci-host-generic.c index 895c0e39ca3b..5434c90db243 100644 --- a/drivers/pci/host/pci-host-generic.c +++ b/drivers/pci/host/pci-host-generic.c @@ -169,6 +169,7 @@ static int gen_pci_parse_map_cfg_windows(struct gen_pci *pci) struct resource *bus_range; struct device *dev = pci->host.dev.parent; struct device_node *np = dev->of_node; + u32 sz = 1 << pci->cfg.ops->bus_shift; err = of_address_to_resource(np, 0, &pci->cfg.res); if (err) { @@ -196,10 +197,9 @@ static int gen_pci_parse_map_cfg_windows(struct gen_pci *pci) bus_range = pci->cfg.bus_range; for (busn = bus_range->start; busn <= bus_range->end; ++busn) { u32 idx = busn - bus_range->start; - u32 sz = 1 << pci->cfg.ops->bus_shift; pci->cfg.win[idx] = devm_ioremap(dev, - pci->cfg.res.start + busn * sz, + pci->cfg.res.start + idx * sz, sz); if (!pci->cfg.win[idx]) return -ENOMEM; |