From: Jianguo Sun <sunjianguo1@xxxxxxxxxx>
It adds the device tree bindings for PCIE/SATA/USB3 combo PHY found on
HiSilicon STB SoCs.
Signed-off-by: Jianguo Sun <sunjianguo1@xxxxxxxxxx>
Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
---
.../bindings/phy/phy-hi3798cv200-combphy.txt | 57 ++++++++++++++++++++++
1 file changed, 57 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/phy-hi3798cv200-combphy.txt
diff --git a/Documentation/devicetree/bindings/phy/phy-hi3798cv200-combphy.txt b/Documentation/devicetree/bindings/phy/phy-hi3798cv200-combphy.txt
new file mode 100644
index 000000000000..efb6cd5eae04
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-hi3798cv200-combphy.txt
@@ -0,0 +1,57 @@
+HiSilicon STB PCIE/SATA/USB3 PHY
+
+Required properties:
+- compatible: Should be "hisilicon,hi3798cv200-combphy"
+- reg: Should be the address space for COMBPHY configuration and state
+ registers in peripheral controller, e.g. PERI_COMBPHY0_CFG and
+ PERI_COMBPHY0_STATE for COMBPHY0 Hi3798cv200 SoC.
+- #phy-cells: Should be 1. The cell number is used to select the phy mode
+ as defined in <dt-bindings/phy/phy.h>.
+- clocks: The phandle to clock provider and clock specifier pair.
+- resets: The phandle to reset controller and reset specifier pair.
+
+Refer to phy/phy-bindings.txt for the generic PHY binding properties
+
+Optional properties:
+- hisilicon,fixed-mode: If the phy device doesn't support mode select
+ but a fixed mode setting, the property should be present to specify
+ the particular mode.
+- hisilicon,mode-select-bits: If the phy device support mode select,
+ this property should be present to specify the register bits in
+ peripheral controller, as a 3 integers tuple:
+ <register_offset bit_shift bit_mask>.
+
+Notes:
+- Between hisilicon,fixed-mode and hisilicon,mode-select-bits, one and only
+ one of them should be present.
+- The device node should be a child of peripheral controller that contains
+ COMBPHY configuration/state and PERI_CTRL register used to select PHY mode.
+
+Examples:
+
+perictrl: peripheral-controller@8a20000 {
+ compatible = "hisilicon,hi3798cv200-perictrl", "syscon",
+ "simple-mfd";
+ reg = <0x8a20000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x8a20000 0x1000>;
+
+ combphy0: phy@850 {
+ compatible = "hisilicon,hi3798cv200-combphy";
+ reg = <0x850 0x8>;
+ #phy-cells = <1>;
+ clocks = <&crg HISTB_COMBPHY0_CLK>;
+ resets = <&crg 0x188 4>;
+ hisilicon,fixed-mode = <PHY_TYPE_USB3>;
+ };
+
+ combphy1: phy@858 {
+ compatible = "hisilicon,hi3798cv200-combphy";
+ reg = <0x858 0x8>;
+ #phy-cells = <1>;
+ clocks = <&crg HISTB_COMBPHY1_CLK>;
+ resets = <&crg 0x188 12>;
+ hisilicon,mode-select-bits = <0x0008 11 (0x3 << 11)>;
+ };
+};
--
1.9.1
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