1c66ec88fSEmmanuel Vadot# SPDX-License-Identifier: GPL-2.0 2c66ec88fSEmmanuel Vadot%YAML 1.2 3c66ec88fSEmmanuel Vadot--- 4c66ec88fSEmmanuel Vadot$id: http://devicetree.org/schemas/mmc/rockchip-dw-mshc.yaml# 5c66ec88fSEmmanuel Vadot$schema: http://devicetree.org/meta-schemas/core.yaml# 6c66ec88fSEmmanuel Vadot 77ef62cebSEmmanuel Vadottitle: Rockchip designware mobile storage host controller 8c66ec88fSEmmanuel Vadot 9c66ec88fSEmmanuel Vadotdescription: 10c66ec88fSEmmanuel Vadot Rockchip uses the Synopsys designware mobile storage host controller 11c66ec88fSEmmanuel Vadot to interface a SoC with storage medium such as eMMC or SD/MMC cards. 12c66ec88fSEmmanuel Vadot This file documents the combined properties for the core Synopsys dw mshc 13c66ec88fSEmmanuel Vadot controller that are not already included in the synopsys-dw-mshc-common.yaml 14c66ec88fSEmmanuel Vadot file and the Rockchip specific extensions. 15c66ec88fSEmmanuel Vadot 16c66ec88fSEmmanuel VadotallOf: 17*cb7aa33aSEmmanuel Vadot - $ref: synopsys-dw-mshc-common.yaml# 18c66ec88fSEmmanuel Vadot 19c66ec88fSEmmanuel Vadotmaintainers: 20c66ec88fSEmmanuel Vadot - Heiko Stuebner <heiko@sntech.de> 21c66ec88fSEmmanuel Vadot 22c66ec88fSEmmanuel Vadot# Everything else is described in the common file 23c66ec88fSEmmanuel Vadotproperties: 24c66ec88fSEmmanuel Vadot compatible: 25c66ec88fSEmmanuel Vadot oneOf: 26c66ec88fSEmmanuel Vadot # for Rockchip RK2928 and before RK3288 27c66ec88fSEmmanuel Vadot - const: rockchip,rk2928-dw-mshc 28c66ec88fSEmmanuel Vadot # for Rockchip RK3288 29c66ec88fSEmmanuel Vadot - const: rockchip,rk3288-dw-mshc 30c66ec88fSEmmanuel Vadot - items: 31c66ec88fSEmmanuel Vadot - enum: 32c66ec88fSEmmanuel Vadot - rockchip,px30-dw-mshc 335956d97fSEmmanuel Vadot - rockchip,rk1808-dw-mshc 34c66ec88fSEmmanuel Vadot - rockchip,rk3036-dw-mshc 357ef62cebSEmmanuel Vadot - rockchip,rk3128-dw-mshc 36c66ec88fSEmmanuel Vadot - rockchip,rk3228-dw-mshc 37c66ec88fSEmmanuel Vadot - rockchip,rk3308-dw-mshc 38c66ec88fSEmmanuel Vadot - rockchip,rk3328-dw-mshc 39c66ec88fSEmmanuel Vadot - rockchip,rk3368-dw-mshc 40c66ec88fSEmmanuel Vadot - rockchip,rk3399-dw-mshc 415956d97fSEmmanuel Vadot - rockchip,rk3568-dw-mshc 42*cb7aa33aSEmmanuel Vadot - rockchip,rk3588-dw-mshc 43c66ec88fSEmmanuel Vadot - rockchip,rv1108-dw-mshc 44b97ee269SEmmanuel Vadot - rockchip,rv1126-dw-mshc 45c66ec88fSEmmanuel Vadot - const: rockchip,rk3288-dw-mshc 46c66ec88fSEmmanuel Vadot 47c66ec88fSEmmanuel Vadot reg: 48c66ec88fSEmmanuel Vadot maxItems: 1 49c66ec88fSEmmanuel Vadot 50c66ec88fSEmmanuel Vadot interrupts: 51c66ec88fSEmmanuel Vadot maxItems: 1 52c66ec88fSEmmanuel Vadot 53c66ec88fSEmmanuel Vadot clocks: 54c66ec88fSEmmanuel Vadot minItems: 2 55c66ec88fSEmmanuel Vadot maxItems: 4 56c66ec88fSEmmanuel Vadot description: 57c66ec88fSEmmanuel Vadot Handle to "biu" and "ciu" clocks for the bus interface unit clock and 58c66ec88fSEmmanuel Vadot the card interface unit clock. If "ciu-drive" and "ciu-sample" are 59c66ec88fSEmmanuel Vadot specified in clock-names, it should also contain 60c66ec88fSEmmanuel Vadot handles to these clocks. 61c66ec88fSEmmanuel Vadot 62c66ec88fSEmmanuel Vadot clock-names: 63c66ec88fSEmmanuel Vadot minItems: 2 64c66ec88fSEmmanuel Vadot items: 65c66ec88fSEmmanuel Vadot - const: biu 66c66ec88fSEmmanuel Vadot - const: ciu 67c66ec88fSEmmanuel Vadot - const: ciu-drive 68c66ec88fSEmmanuel Vadot - const: ciu-sample 69c66ec88fSEmmanuel Vadot description: 70c66ec88fSEmmanuel Vadot Apart from the clock-names "biu" and "ciu" two more clocks 71c66ec88fSEmmanuel Vadot "ciu-drive" and "ciu-sample" are supported. They are used 72c66ec88fSEmmanuel Vadot to control the clock phases, "ciu-sample" is required for tuning 73c66ec88fSEmmanuel Vadot high speed modes. 74c66ec88fSEmmanuel Vadot 758bab661aSEmmanuel Vadot power-domains: 768bab661aSEmmanuel Vadot maxItems: 1 778bab661aSEmmanuel Vadot 78c66ec88fSEmmanuel Vadot rockchip,default-sample-phase: 79c66ec88fSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32 80c66ec88fSEmmanuel Vadot minimum: 0 81c66ec88fSEmmanuel Vadot maximum: 360 82c66ec88fSEmmanuel Vadot default: 0 83c66ec88fSEmmanuel Vadot description: 84c66ec88fSEmmanuel Vadot The default phase to set "ciu-sample" at probing, 85c66ec88fSEmmanuel Vadot low speeds or in case where all phases work at tuning time. 86c66ec88fSEmmanuel Vadot If not specified 0 deg will be used. 87c66ec88fSEmmanuel Vadot 88c66ec88fSEmmanuel Vadot rockchip,desired-num-phases: 89c66ec88fSEmmanuel Vadot $ref: /schemas/types.yaml#/definitions/uint32 90c66ec88fSEmmanuel Vadot minimum: 0 91c66ec88fSEmmanuel Vadot maximum: 360 92c66ec88fSEmmanuel Vadot default: 360 93c66ec88fSEmmanuel Vadot description: 94c66ec88fSEmmanuel Vadot The desired number of times that the host execute tuning when needed. 95c66ec88fSEmmanuel Vadot If not specified, the host will do tuning for 360 times, 96c66ec88fSEmmanuel Vadot namely tuning for each degree. 97c66ec88fSEmmanuel Vadot 98c66ec88fSEmmanuel Vadotrequired: 99c66ec88fSEmmanuel Vadot - compatible 100c66ec88fSEmmanuel Vadot - reg 101c66ec88fSEmmanuel Vadot - interrupts 102c66ec88fSEmmanuel Vadot - clocks 103c66ec88fSEmmanuel Vadot - clock-names 104c66ec88fSEmmanuel Vadot 1056be33864SEmmanuel VadotunevaluatedProperties: false 1066be33864SEmmanuel Vadot 107c66ec88fSEmmanuel Vadotexamples: 108c66ec88fSEmmanuel Vadot - | 109c66ec88fSEmmanuel Vadot #include <dt-bindings/clock/rk3288-cru.h> 110c66ec88fSEmmanuel Vadot #include <dt-bindings/interrupt-controller/arm-gic.h> 111c66ec88fSEmmanuel Vadot #include <dt-bindings/interrupt-controller/irq.h> 112c66ec88fSEmmanuel Vadot sdmmc: mmc@ff0c0000 { 113c66ec88fSEmmanuel Vadot compatible = "rockchip,rk3288-dw-mshc"; 114c66ec88fSEmmanuel Vadot reg = <0xff0c0000 0x4000>; 115c66ec88fSEmmanuel Vadot interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>; 116c66ec88fSEmmanuel Vadot clocks = <&cru HCLK_SDMMC>, <&cru SCLK_SDMMC>, 117c66ec88fSEmmanuel Vadot <&cru SCLK_SDMMC_DRV>, <&cru SCLK_SDMMC_SAMPLE>; 118c66ec88fSEmmanuel Vadot clock-names = "biu", "ciu", "ciu-drive", "ciu-sample"; 119c66ec88fSEmmanuel Vadot resets = <&cru SRST_MMC0>; 120c66ec88fSEmmanuel Vadot reset-names = "reset"; 121c66ec88fSEmmanuel Vadot fifo-depth = <0x100>; 122c66ec88fSEmmanuel Vadot max-frequency = <150000000>; 123c66ec88fSEmmanuel Vadot }; 124c66ec88fSEmmanuel Vadot 125c66ec88fSEmmanuel Vadot... 126