From: Rob Herring <robh@xxxxxxxxxx> Add binding documentation for the PCI controller found on Versatile PB boards. Signed-off-by: Rob Herring <robh@xxxxxxxxxx> --- .../devicetree/bindings/pci/versatile.txt | 59 ++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/versatile.txt diff --git a/Documentation/devicetree/bindings/pci/versatile.txt b/Documentation/devicetree/bindings/pci/versatile.txt new file mode 100644 index 0000000..2cc6071 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/versatile.txt @@ -0,0 +1,59 @@ +* ARM Versatile Platform Baseboard PCI interface + +PCI host controller found on the ARM Versatile PB board's FPGA. + +Required properties: +- compatible: should contain "arm,versatile-pci" to identify the Versatile PCI + controller. +- reg: base addresses and lengths of the pci controller. There must be 3 + entries: + - Versatile specific registers + - Self Config space + - Config space +- #address-cells: set to <3> +- #size-cells: set to <2> +- device_type: set to "pci" +- bus-range: set to <0 0xff> +- ranges: ranges for the PCI memory and I/O regions +- #interrupt-cells: set to <1> +- interrupt-map-mask and interrupt-map: standard PCI properties to define + the mapping of the PCI interface to interrupt numbers. + +Example: + +pci-controller@10001000 { + compatible = "arm,versatile-pci"; + device_type = "pci"; + reg = <0x10001000 0x1000 + 0x41000000 0x10000 + 0x42000000 0x100000>; + bus-range = <0 0xff>; + #address-cells = <3>; + #size-cells = <2>; + #interrupt-cells = <1>; + + ranges = <0x01000000 0 0x00000000 0x43000000 0 0x00010000 /* downstream I/O */ + 0x02000000 0 0x50000000 0x50000000 0 0x10000000 /* non-prefetchable memory */ + 0x42000000 0 0x60000000 0x60000000 0 0x10000000>; /* prefetchable memory */ + + interrupt-map-mask = <0x1800 0 0 7>; + interrupt-map = <0x1800 0 0 1 &sic 28 + 0x1800 0 0 2 &sic 29 + 0x1800 0 0 3 &sic 30 + 0x1800 0 0 4 &sic 27 + + 0x1000 0 0 1 &sic 27 + 0x1000 0 0 2 &sic 28 + 0x1000 0 0 3 &sic 29 + 0x1000 0 0 4 &sic 30 + + 0x0800 0 0 1 &sic 30 + 0x0800 0 0 2 &sic 27 + 0x0800 0 0 3 &sic 28 + 0x0800 0 0 4 &sic 29 + + 0x0000 0 0 1 &sic 29 + 0x0000 0 0 2 &sic 30 + 0x0000 0 0 3 &sic 27 + 0x0000 0 0 4 &sic 28>; +}; -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html