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author | kx <kx@radix.pro> | 2023-09-20 17:59:05 +0300 |
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committer | kx <kx@radix.pro> | 2023-09-20 17:59:05 +0300 |
commit | f3c042d7a10d0531e19475a86f7863911d631810 (patch) | |
tree | 7a7d053c5d3f4a3f0b6055fb7a9c1da98edb6d81 | |
parent | 3fe99906f2223a617d23658cfa842eef7d512460 (diff) | |
download | linux-f3c042d7a10d0531e19475a86f7863911d631810.tar.xz |
dt-bindings: documentation
-rw-r--r-- | Documentation/devicetree/bindings/clock/rockchip,rk3588-cru.yaml | 71 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/nvmem/rockchip,otp.yaml | 122 |
2 files changed, 193 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3588-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3588-cru.yaml new file mode 100644 index 000000000000..74cd3f3f229a --- /dev/null +++ b/Documentation/devicetree/bindings/clock/rockchip,rk3588-cru.yaml @@ -0,0 +1,71 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/rockchip,rk3588-cru.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip rk3588 Family Clock and Reset Control Module + +maintainers: + - Elaine Zhang <zhangqing@rock-chips.com> + - Heiko Stuebner <heiko@sntech.de> + +description: | + The RK3588 clock controller generates the clock and also implements a reset + controller for SoC peripherals. For example it provides SCLK_UART2 and + PCLK_UART2, as well as SRST_P_UART2 and SRST_S_UART2 for the second UART + module. + Each clock is assigned an identifier and client nodes can use this identifier + to specify the clock which they consume. All available clock and reset IDs + are defined as preprocessor macros in dt-binding headers. + +properties: + compatible: + enum: + - rockchip,rk3588-cru + + reg: + maxItems: 1 + + "#clock-cells": + const: 1 + + "#reset-cells": + const: 1 + + clocks: + minItems: 2 + maxItems: 2 + + clock-names: + items: + - const: xin24m + - const: xin32k + + assigned-clocks: true + + assigned-clock-rates: true + + rockchip,grf: + $ref: /schemas/types.yaml#/definitions/phandle + description: > + phandle to the syscon managing the "general register files". It is used + for GRF muxes, if missing any muxes present in the GRF will not be + available. + +required: + - compatible + - reg + - "#clock-cells" + - "#reset-cells" + +additionalProperties: false + +examples: + - | + cru: clock-controller@fd7c0000 { + compatible = "rockchip,rk3588-cru"; + reg = <0xfd7c0000 0x5c000>; + #clock-cells = <1>; + #reset-cells = <1>; + }; diff --git a/Documentation/devicetree/bindings/nvmem/rockchip,otp.yaml b/Documentation/devicetree/bindings/nvmem/rockchip,otp.yaml new file mode 100644 index 000000000000..9c6eff788928 --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/rockchip,otp.yaml @@ -0,0 +1,122 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/nvmem/rockchip,otp.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip internal OTP (One Time Programmable) memory + +maintainers: + - Heiko Stuebner <heiko@sntech.de> + +properties: + compatible: + enum: + - rockchip,px30-otp + - rockchip,rk3308-otp + - rockchip,rk3588-otp + + reg: + maxItems: 1 + + clocks: + minItems: 3 + maxItems: 4 + + clock-names: + minItems: 3 + items: + - const: otp + - const: apb_pclk + - const: phy + - const: arb + + resets: + minItems: 1 + maxItems: 3 + + reset-names: + minItems: 1 + maxItems: 3 + +required: + - compatible + - reg + - clocks + - clock-names + - resets + - reset-names + +allOf: + - $ref: nvmem.yaml# + + - if: + properties: + compatible: + contains: + enum: + - rockchip,px30-otp + - rockchip,rk3308-otp + then: + properties: + clocks: + maxItems: 3 + resets: + maxItems: 1 + reset-names: + items: + - const: phy + + - if: + properties: + compatible: + contains: + enum: + - rockchip,rk3588-otp + then: + properties: + clocks: + minItems: 4 + resets: + minItems: 3 + reset-names: + items: + - const: otp + - const: apb + - const: arb + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/clock/px30-cru.h> + + soc { + #address-cells = <2>; + #size-cells = <2>; + + otp: efuse@ff290000 { + compatible = "rockchip,px30-otp"; + reg = <0x0 0xff290000 0x0 0x4000>; + clocks = <&cru SCLK_OTP_USR>, <&cru PCLK_OTP_NS>, + <&cru PCLK_OTP_PHY>; + clock-names = "otp", "apb_pclk", "phy"; + resets = <&cru SRST_OTP_PHY>; + reset-names = "phy"; + #address-cells = <1>; + #size-cells = <1>; + + cpu_id: id@7 { + reg = <0x07 0x10>; + }; + + cpu_leakage: cpu-leakage@17 { + reg = <0x17 0x1>; + }; + + performance: performance@1e { + reg = <0x1e 0x1>; + bits = <4 3>; + }; + }; + }; |