On Thu, May 25, 2017 at 11:02:01AM +0800, Xiaowei Song wrote:
> Signed-off-by: Xiaowei Song <songxiaowei@xxxxxxxxxxxxx>
> ---
> .../devicetree/bindings/pci/kirin-pcie.txt | 49 ++++++++++++++++++++++
> 1 file changed, 49 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/pci/kirin-pcie.txt
Looking for an ack from Rob.
> diff --git a/Documentation/devicetree/bindings/pci/kirin-pcie.txt b/Documentation/devicetree/bindings/pci/kirin-pcie.txt
> new file mode 100644
> index 000000000000..ba6f1bd191f5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pci/kirin-pcie.txt
> @@ -0,0 +1,49 @@
> +HiSilicon Kirin SoCs PCIe host DT description
> +
> +Kirin PCIe host controller is based on Designware PCI core.
> +It shares common functions with PCIe Designware core driver
> +and inherits common properties defined in
> +Documentation/devicetree/bindings/pci/designware-pci.txt.
> +
> +Additional properties are described here:
> +
> +Required properties
> +- compatible:
> + "hisilicon,kirin960-pcie" for PCIe of Kirin960 SoC
> +- reg: Should contain rc_dbi, apb, phy, config registers location and length.
> +- reg-names: Must include the following entries:
> + "dbi": controller configuration registers;
> + "apb": apb Ctrl register defined by Kirin;
> + "phy": apb PHY register defined by Kirin;
> + "config": PCIe configuration space registers.
> +- reset-gpio: The gpio to generate PCIe perst assert and deassert signal.
> +
> +Optional properties:
> +
> +Example based on kirin960:
> +
> + pcie@f4000000 {
> + compatible = "hisilicon,kirin-pcie";
> + reg = <0x0 0xf4000000 0x0 0x1000>, <0x0 0xff3fe000 0x0 0x1000>,
> + <0x0 0xf3f20000 0x0 0x40000>, <0x0 0xF4000000 0 0x2000>;
> + reg-names = "dbi","apb","phy", "config";
> + bus-range = <0x0 0x1>;
> + #address-cells = <3>;
> + #size-cells = <2>;
> + device_type = "pci";
> + ranges = <0x02000000 0x0 0x00000000 0x0 0xf5000000 0x0 0x2000000>;
> + num-lanes = <1>;
> + #interrupt-cells = <1>;
> + interrupt-map-mask = <0xf800 0 0 7>;
> + interrupt-map = <0x0 0 0 2 &gic 0 0 0 283 4>,
Please indent consistently (above line uses tabs, most others use
spaces). Also, please line up the cells.
> + <0x0 0 0 3 &gic 0 0 0 284 4>,
> + <0x0 0 0 4 &gic 0 0 0 285 4>;
> + clocks = <&crg_ctrl HI3660_PCIEPHY_REF>,
> + <&crg_ctrl HI3660_CLK_GATE_PCIEAUX>,
> + <&crg_ctrl HI3660_PCLK_GATE_PCIE_PHY>,
> + <&crg_ctrl HI3660_PCLK_GATE_PCIE_SYS>,
> + <&crg_ctrl HI3660_ACLK_GATE_PCIE>;
> + clock-names = "pcie_phy_ref", "pcie_aux",
> + "pcie_apb_phy", "pcie_apb_sys", "pcie_aclk";
> + reset-gpio = <&gpio11 1 0 >;
> + };
> --
> 2.11.GIT
>
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