From mboxrd@z Thu Jan 1 00:00:00 1970 From: phil.edworthy@renesas.com (Phil Edworthy) Date: Fri, 21 Mar 2014 10:32:44 +0000 Subject: [PATCH v4 5/9] dt-bindings: pci: rcar pcie device tree bindings In-Reply-To: <1395397968-6242-1-git-send-email-phil.edworthy@renesas.com> References: <1395397968-6242-1-git-send-email-phil.edworthy@renesas.com> Message-ID: <1395397968-6242-6-git-send-email-phil.edworthy@renesas.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This patch adds the bindings for the rcar PCIE driver. The driver resides under drivers/pci/host/pcie-rcar.c Signed-off-by: Phil Edworthy --- Documentation/devicetree/bindings/pci/rcar-pci.txt | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/rcar-pci.txt diff --git a/Documentation/devicetree/bindings/pci/rcar-pci.txt b/Documentation/devicetree/bindings/pci/rcar-pci.txt new file mode 100644 index 0000000..0e219b0 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/rcar-pci.txt @@ -0,0 +1,40 @@ +* Renesas RCar PCIe interface + +Required properties: +- compatible: should contain one of the following + "renesas,r8a7779-pcie", "renesas,r8a7790-pcie", "renesas,r8a7791-pcie" +- reg: base addresses and lengths of the pcie controller. +- #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 +- interrupts: interrupt values for MSI interrupt +- #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. +- clocks: from common clock binding: handle to pci clock. +- clock-names: from common clock binding: should be "pcie" + +Example: + +SoC specific DT Entry: + + pcie: pcie at 0x01000000 { + compatible = "renesas,r8a7790-pcie"; + reg = <0 0xfe000000 0 0x80000>; + #address-cells = <3>; + #size-cells = <2>; + device_type = "pci"; + ranges = <0x01000000 0 0x00000000 0 0xfe100000 0 0x00100000 + 0x02000000 0 0xfe200000 0 0xfe200000 0 0x00200000 + 0x02000000 0 0x30000000 0 0x30000000 0 0x08000000 + 0x42000000 0 0x38000000 0 0x38000000 0 0x08000000>; + interrupts = <0 116 4>; + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0>; + interrupt-map = <0 0 0 0 &gic 0 116 4>; + clocks = <&mstp3_clks R8A7790_CLK_PCIE>; + clock-names = "pcie"; + status = "disabled"; + }; -- 1.9.0