From 1eece23dba3230572d9c64fd530167aac8ada2f7 Mon Sep 17 00:00:00 2001 From: Johan Jonker Date: Thu, 16 Jan 2020 16:22:29 +0100 Subject: dt-bindings: mmc: convert rockchip dw-mshc bindings to yaml Current dts files with 'dwmmc' nodes are manually verified. In order to automate this process rockchip-dw-mshc.txt has to be converted to yaml. In the new setup rockchip-dw-mshc.yaml will inherit properties from mmc-controller.yaml and synopsys-dw-mshc-common.yaml. 'dwmmc' will no longer be a valid name for a node and should be changed to 'mmc'. Signed-off-by: Johan Jonker Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/20200116152230.29831-2-jbx6244@gmail.com Signed-off-by: Ulf Hansson --- .../devicetree/bindings/mmc/rockchip-dw-mshc.txt | 49 -------- .../devicetree/bindings/mmc/rockchip-dw-mshc.yaml | 123 +++++++++++++++++++++ 2 files changed, 123 insertions(+), 49 deletions(-) delete mode 100644 Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt create mode 100644 Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml (limited to 'Documentation/devicetree/bindings/mmc') diff --git a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt deleted file mode 100644 index 6f629b12bd69..000000000000 --- a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt +++ /dev/null @@ -1,49 +0,0 @@ -* Rockchip specific extensions to the Synopsys Designware Mobile - Storage Host Controller - -The Synopsys designware mobile storage host controller is used to interface -a SoC with storage medium such as eMMC or SD/MMC cards. This file documents -differences between the core Synopsys dw mshc controller properties described -by synopsys-dw-mshc.txt and the properties used by the Rockchip specific -extensions to the Synopsys Designware Mobile Storage Host Controller. - -Required Properties: - -* compatible: should be - - "rockchip,rk2928-dw-mshc": for Rockchip RK2928 and following, - before RK3288 - - "rockchip,rk3288-dw-mshc": for Rockchip RK3288 - - "rockchip,rv1108-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RV1108 - - "rockchip,px30-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip PX30 - - "rockchip,rk3036-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3036 - - "rockchip,rk3228-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK322x - - "rockchip,rk3328-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3328 - - "rockchip,rk3368-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3368 - - "rockchip,rk3399-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3399 - -Optional Properties: -* clocks: from common clock binding: if ciu-drive and ciu-sample are - specified in clock-names, should contain handles to these clocks. - -* clock-names: Apart from the clock-names described in synopsys-dw-mshc.txt - two more clocks "ciu-drive" and "ciu-sample" are supported. They are used - to control the clock phases, "ciu-sample" is required for tuning high- - speed modes. - -* rockchip,default-sample-phase: The default phase to set ciu-sample at - probing, low speeds or in case where all phases work at tuning time. - If not specified 0 deg will be used. - -* rockchip,desired-num-phases: The desired number of times that the host - execute tuning when needed. If not specified, the host will do tuning - for 360 times, namely tuning for each degree. - -Example: - - rkdwmmc0@12200000 { - compatible = "rockchip,rk3288-dw-mshc"; - reg = <0x12200000 0x1000>; - interrupts = <0 75 0>; - #address-cells = <1>; - #size-cells = <0>; - }; diff --git a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml new file mode 100644 index 000000000000..2f70f5ef0cf5 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml @@ -0,0 +1,123 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mmc/rockchip-dw-mshc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip designware mobile storage host controller device tree bindings + +description: + Rockchip uses the Synopsys designware mobile storage host controller + to interface a SoC with storage medium such as eMMC or SD/MMC cards. + This file documents the combined properties for the core Synopsys dw mshc + controller that are not already included in the synopsys-dw-mshc-common.yaml + file and the Rockchip specific extensions. + +allOf: + - $ref: "synopsys-dw-mshc-common.yaml#" + +maintainers: + - Heiko Stuebner + +# Everything else is described in the common file +properties: + compatible: + oneOf: + # for Rockchip RK2928 and before RK3288 + - const: rockchip,rk2928-dw-mshc + # for Rockchip RK3288 + - const: rockchip,rk3288-dw-mshc + - items: + - enum: + # for Rockchip PX30 + - rockchip,px30-dw-mshc + # for Rockchip RK3036 + - rockchip,rk3036-dw-mshc + # for Rockchip RK322x + - rockchip,rk3228-dw-mshc + # for Rockchip RK3328 + - rockchip,rk3328-dw-mshc + # for Rockchip RK3368 + - rockchip,rk3368-dw-mshc + # for Rockchip RK3399 + - rockchip,rk3399-dw-mshc + # for Rockchip RV1108 + - rockchip,rv1108-dw-mshc + - const: rockchip,rk3288-dw-mshc + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + minItems: 2 + maxItems: 4 + description: + Handle to "biu" and "ciu" clocks for the bus interface unit clock and + the card interface unit clock. If "ciu-drive" and "ciu-sample" are + specified in clock-names, it should also contain + handles to these clocks. + + clock-names: + minItems: 2 + items: + - const: biu + - const: ciu + - const: ciu-drive + - const: ciu-sample + description: + Apart from the clock-names "biu" and "ciu" two more clocks + "ciu-drive" and "ciu-sample" are supported. They are used + to control the clock phases, "ciu-sample" is required for tuning + high speed modes. + + rockchip,default-sample-phase: + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 360 + default: 0 + description: + The default phase to set "ciu-sample" at probing, + low speeds or in case where all phases work at tuning time. + If not specified 0 deg will be used. + + rockchip,desired-num-phases: + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 360 + default: 360 + description: + The desired number of times that the host execute tuning when needed. + If not specified, the host will do tuning for 360 times, + namely tuning for each degree. + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +examples: + - | + #include + #include + #include + sdmmc: mmc@ff0c0000 { + compatible = "rockchip,rk3288-dw-mshc"; + reg = <0x0 0xff0c0000 0x0 0x4000>; + interrupts = ; + clocks = <&cru HCLK_SDMMC>, <&cru SCLK_SDMMC>, + <&cru SCLK_SDMMC_DRV>, <&cru SCLK_SDMMC_SAMPLE>; + clock-names = "biu", "ciu", "ciu-drive", "ciu-sample"; + resets = <&cru SRST_MMC0>; + reset-names = "reset"; + fifo-depth = <0x100>; + max-frequency = <150000000>; + }; + +... -- cgit