1* MTK MMC controller 2 3The MTK MSDC can act as a MMC controller 4to support MMC, SD, and SDIO types of memory cards. 5 6This file documents differences between the core properties in mmc.txt 7and the properties used by the msdc driver. 8 9Required properties: 10- compatible: Should be "mediatek,mt8173-mmc","mediatek,mt8135-mmc" 11- interrupts: Should contain MSDC interrupt number 12- clocks: MSDC source clock, HCLK 13- clock-names: "source", "hclk" 14- pinctrl-names: should be "default", "state_uhs" 15- pinctrl-0: should contain default/high speed pin ctrl 16- pinctrl-1: should contain uhs mode pin ctrl 17- vmmc-supply: power to the Core 18- vqmmc-supply: power to the IO 19 20Optional properties: 21- assigned-clocks: PLL of the source clock 22- assigned-clock-parents: parent of source clock, used for HS400 mode to get 400Mhz source clock 23- hs400-ds-delay: HS400 DS delay setting 24 25Examples: 26mmc0: mmc@11230000 { 27 compatible = "mediatek,mt8173-mmc", "mediatek,mt8135-mmc"; 28 reg = <0 0x11230000 0 0x108>; 29 interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_LOW>; 30 vmmc-supply = <&mt6397_vemc_3v3_reg>; 31 vqmmc-supply = <&mt6397_vio18_reg>; 32 clocks = <&pericfg CLK_PERI_MSDC30_0>, 33 <&topckgen CLK_TOP_MSDC50_0_H_SEL>; 34 clock-names = "source", "hclk"; 35 pinctrl-names = "default", "state_uhs"; 36 pinctrl-0 = <&mmc0_pins_default>; 37 pinctrl-1 = <&mmc0_pins_uhs>; 38 assigned-clocks = <&topckgen CLK_TOP_MSDC50_0_SEL>; 39 assigned-clock-parents = <&topckgen CLK_TOP_MSDCPLL_D2>; 40 hs400-ds-delay = <0x14015>; 41}; 42