Merge tag 'for-v4.5-rc/omap-critical-fixes-a' of git://git.kernel.org/pub/scm/linux...

[linux-2.6-block.git] / Documentation / devicetree / bindings / pci / pci-rcar-gen2.txt

diff --git a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
index 7fab84b335313bbd8abc668f347f06c8d0cfe87d..07a75094c5a8ed07e927c0641584d5e8348e3dc6 100644 (file)
--- 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