Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | Device tree bindings for HiSilicon INNO USB2 PHY |
| 2 | |
| 3 | Required properties: |
| 4 | - compatible: Should be one of the following strings: |
| 5 | "hisilicon,inno-usb2-phy", |
| 6 | "hisilicon,hi3798cv200-usb2-phy". |
| 7 | - reg: Should be the address space for PHY configuration register in peripheral |
| 8 | controller, e.g. PERI_USB0 for USB 2.0 PHY01 on Hi3798CV200 SoC. |
| 9 | - clocks: The phandle and clock specifier pair for INNO USB2 PHY device |
| 10 | reference clock. |
| 11 | - resets: The phandle and reset specifier pair for INNO USB2 PHY device reset |
| 12 | signal. |
| 13 | - #address-cells: Must be 1. |
| 14 | - #size-cells: Must be 0. |
| 15 | |
| 16 | The INNO USB2 PHY device should be a child node of peripheral controller that |
| 17 | contains the PHY configuration register, and each device supports up to 2 PHY |
| 18 | ports which are represented as child nodes of INNO USB2 PHY device. |
| 19 | |
| 20 | Required properties for PHY port node: |
| 21 | - reg: The PHY port instance number. |
| 22 | - #phy-cells: Defined by generic PHY bindings. Must be 0. |
| 23 | - resets: The phandle and reset specifier pair for PHY port reset signal. |
| 24 | |
| 25 | Refer to phy/phy-bindings.txt for the generic PHY binding properties |
| 26 | |
| 27 | Example: |
| 28 | |
| 29 | perictrl: peripheral-controller@8a20000 { |
| 30 | compatible = "hisilicon,hi3798cv200-perictrl", "simple-mfd"; |
| 31 | reg = <0x8a20000 0x1000>; |
| 32 | #address-cells = <1>; |
| 33 | #size-cells = <1>; |
| 34 | ranges = <0x0 0x8a20000 0x1000>; |
| 35 | |
| 36 | usb2_phy1: usb2-phy@120 { |
| 37 | compatible = "hisilicon,hi3798cv200-usb2-phy"; |
| 38 | reg = <0x120 0x4>; |
| 39 | clocks = <&crg HISTB_USB2_PHY1_REF_CLK>; |
| 40 | resets = <&crg 0xbc 4>; |
| 41 | #address-cells = <1>; |
| 42 | #size-cells = <0>; |
| 43 | |
| 44 | usb2_phy1_port0: phy@0 { |
| 45 | reg = <0>; |
| 46 | #phy-cells = <0>; |
| 47 | resets = <&crg 0xbc 8>; |
| 48 | }; |
| 49 | |
| 50 | usb2_phy1_port1: phy@1 { |
| 51 | reg = <1>; |
| 52 | #phy-cells = <0>; |
| 53 | resets = <&crg 0xbc 9>; |
| 54 | }; |
| 55 | }; |
| 56 | |
| 57 | usb2_phy2: usb2-phy@124 { |
| 58 | compatible = "hisilicon,hi3798cv200-usb2-phy"; |
| 59 | reg = <0x124 0x4>; |
| 60 | clocks = <&crg HISTB_USB2_PHY2_REF_CLK>; |
| 61 | resets = <&crg 0xbc 6>; |
| 62 | #address-cells = <1>; |
| 63 | #size-cells = <0>; |
| 64 | |
| 65 | usb2_phy2_port0: phy@0 { |
| 66 | reg = <0>; |
| 67 | #phy-cells = <0>; |
| 68 | resets = <&crg 0xbc 10>; |
| 69 | }; |
| 70 | }; |
| 71 | }; |