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| author | Rob Herring <robh@kernel.org> | 2015-01-28 10:16:16 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-01-28 16:49:41 -0600 |
| commit | 7e772edf1f22fa6faba4ccff680f1e2135fa10b0 (patch) | |
| tree | ecfb11a9a2f3d54a5a197a2335475eb954c7e68a /Documentation | |
| parent | 97bf6af1f928216fd6c5a66e8a57bfa95a659672 (diff) | |
| download | linux-stable-7e772edf1f22fa6faba4ccff680f1e2135fa10b0.tar.gz linux-stable-7e772edf1f22fa6faba4ccff680f1e2135fa10b0.tar.bz2 linux-stable-7e772edf1f22fa6faba4ccff680f1e2135fa10b0.zip | |
PCI: versatile: Add DT docs for ARM Versatile PB PCIe driver
Add binding documentation for the PCI controller found on Versatile PB
boards.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
CC: Pawel Moll <pawel.moll@arm.com>
CC: Mark Rutland <mark.rutland@arm.com>
CC: Ian Campbell <ijc+devicetree@hellion.org.uk>
CC: Kumar Gala <galak@codeaurora.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/pci/versatile.txt | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/versatile.txt b/Documentation/devicetree/bindings/pci/versatile.txt new file mode 100644 index 000000000000..ebd1e7d0403e --- /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>; +}; |