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PCI: iproc: Add DT docs for Broadcom iProc PCIe driver

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Document the Broadcom iProc PCIe platform interface device tree binding.

Signed-off-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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Ray Jui 2015-04-08 11:21:34 -07:00 committed by Bjorn Helgaas
parent e6b29deafa
commit 1b55d62259
1 changed files with 63 additions and 0 deletions
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Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt Normal file
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* Broadcom iProc PCIe controller with the platform bus interface
Required properties:
- compatible: Must be "brcm,iproc-pcie"
- reg: base address and length of the PCIe controller I/O register space
- #interrupt-cells: set to <1>
- interrupt-map-mask and interrupt-map, standard PCI properties to define the
mapping of the PCIe interface to interrupt numbers
- linux,pci-domain: PCI domain ID. Should be unique for each host controller
- bus-range: PCI bus numbers covered
- #address-cells: set to <3>
- #size-cells: set to <2>
- device_type: set to "pci"
- ranges: ranges for the PCI memory and I/O regions
Optional properties:
- phys: phandle of the PCIe PHY device
- phy-names: must be "pcie-phy"
Example:
pcie0: pcie@18012000 {
compatible = "brcm,iproc-pcie";
reg = <0x18012000 0x1000>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 100 IRQ_TYPE_NONE>;
linux,pci-domain = <0>;
bus-range = <0x00 0xff>;
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
ranges = <0x81000000 0 0 0x28000000 0 0x00010000
0x82000000 0 0x20000000 0x20000000 0 0x04000000>;
phys = <&phy 0 5>;
phy-names = "pcie-phy";
};
pcie1: pcie@18013000 {
compatible = "brcm,iproc-pcie";
reg = <0x18013000 0x1000>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 0>;
interrupt-map = <0 0 0 0 &gic GIC_SPI 106 IRQ_TYPE_NONE>;
linux,pci-domain = <1>;
bus-range = <0x00 0xff>;
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
ranges = <0x81000000 0 0 0x48000000 0 0x00010000
0x82000000 0 0x40000000 0x40000000 0 0x04000000>;
phys = <&phy 1 6>;
phy-names = "pcie-phy";
};