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authorSimon Horman <horms+renesas@verge.net.au>2015-12-03 07:51:39 +0900
committerBjorn Helgaas <bhelgaas@google.com>2015-12-09 12:28:22 -0600
commita37b3eafe8e9cbe7c7754bc6003c125b23749554 (patch)
tree595ad7cc7ba8967c2de0cf500087a4a7c44d5bc4 /Documentation
parent3517652fda51bfeea3768ba05819744c8ac57d9e (diff)
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PCI: rcar: Add gen2 fallback compatibility string for pcie-rcar
Add fallback compatibility string for R-Car Gen 2 family. This is in keeping with the fallback scheme being adopted wherever appropriate for drivers for Renesas SoCs. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/pci/rcar-pci.txt15
1 files changed, 11 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/pci/rcar-pci.txt b/Documentation/devicetree/bindings/pci/rcar-pci.txt
index ab2e75f59518..558fe528ae19 100644
--- a/Documentation/devicetree/bindings/pci/rcar-pci.txt
+++ b/Documentation/devicetree/bindings/pci/rcar-pci.txt
@@ -1,9 +1,16 @@
* Renesas RCar PCIe interface
Required properties:
-- compatible: should contain one of the following
- "renesas,pcie-r8a7779", "renesas,pcie-r8a7790", "renesas,pcie-r8a7791",
- "renesas,pcie-r8a7795"
+compatible: "renesas,pcie-r8a7779" for the R8A7779 SoC;
+ "renesas,pcie-r8a7790" for the R8A7790 SoC;
+ "renesas,pcie-r8a7791" for the R8A7791 SoC;
+ "renesas,pcie-r8a7795" for the R8A7795 SoC;
+ "renesas,pcie-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: base address and length of the pcie controller registers.
- #address-cells: set to <3>
- #size-cells: set to <2>
@@ -26,7 +33,7 @@ Example:
SoC specific DT Entry:
pcie: pcie@fe000000 {
- compatible = "renesas,pcie-r8a7791";
+ compatible = "renesas,pcie-r8a7791", "renesas,pcie-rcar-gen2";
reg = <0 0xfe000000 0 0x80000>;
#address-cells = <3>;
#size-cells = <2>;