diff options
Diffstat (limited to 'Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt index 7fab84b33531..07a75094c5a8 100644 --- a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt +++ b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt @@ -8,7 +8,15 @@ OHCI and EHCI controllers. Required properties: - compatible: "renesas,pci-r8a7790" for the R8A7790 SoC; "renesas,pci-r8a7791" for the R8A7791 SoC; - "renesas,pci-r8a7794" for the R8A7794 SoC. + "renesas,pci-r8a7793" for the R8A7793 SoC; + "renesas,pci-r8a7794" for the R8A7794 SoC; + "renesas,pci-rcar-gen2" for a generic R-Car Gen2 compatible device + + + When compatible with the generic version, nodes must list the + SoC-specific version corresponding to the platform first + followed by the generic version. + - reg: A list of physical regions to access the device: the first is the operational registers for the OHCI/EHCI controllers and the second is for the bridge configuration and control registers. @@ -24,10 +32,15 @@ Required properties: - interrupt-map-mask: standard property that helps to define the interrupt mapping. +Optional properties: +- dma-ranges: a single range for the inbound memory region. If not supplied, + defaults to 1GiB at 0x40000000. Note there are hardware restrictions on the + allowed combinations of address and size. + Example SoC configuration: pci0: pci@ee090000 { - compatible = "renesas,pci-r8a7790"; + compatible = "renesas,pci-r8a7790", "renesas,pci-rcar-gen2"; clocks = <&mstp7_clks R8A7790_CLK_EHCI>; reg = <0x0 0xee090000 0x0 0xc00>, <0x0 0xee080000 0x0 0x1100>; @@ -38,6 +51,7 @@ Example SoC configuration: #address-cells = <3>; #size-cells = <2>; #interrupt-cells = <1>; + dma-ranges = <0x42000000 0 0x40000000 0 0x40000000 0 0x40000000>; interrupt-map-mask = <0xff00 0 0 0x7>; interrupt-map = <0x0000 0 0 1 &gic 0 108 IRQ_TYPE_LEVEL_HIGH 0x0800 0 0 1 &gic 0 108 IRQ_TYPE_LEVEL_HIGH |