| * MTK MMC controller |
| |
| The MTK MSDC can act as a MMC controller |
| to support MMC, SD, and SDIO types of memory cards. |
| |
| This file documents differences between the core properties in mmc.txt |
| and the properties used by the msdc driver. |
| |
| Required properties: |
| - compatible: Should be "mediatek,mt8173-mmc","mediatek,mt8135-mmc" |
| - interrupts: Should contain MSDC interrupt number |
| - clocks: MSDC source clock, HCLK |
| - clock-names: "source", "hclk" |
| - pinctrl-names: should be "default", "state_uhs" |
| - pinctrl-0: should contain default/high speed pin ctrl |
| - pinctrl-1: should contain uhs mode pin ctrl |
| - vmmc-supply: power to the Core |
| - vqmmc-supply: power to the IO |
| |
| Optional properties: |
| - assigned-clocks: PLL of the source clock |
| - assigned-clock-parents: parent of source clock, used for HS400 mode to get 400Mhz source clock |
| - hs400-ds-delay: HS400 DS delay setting |
| |
| Examples: |
| mmc0: mmc@11230000 { |
| compatible = "mediatek,mt8173-mmc", "mediatek,mt8135-mmc"; |
| reg = <0 0x11230000 0 0x108>; |
| interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_LOW>; |
| vmmc-supply = <&mt6397_vemc_3v3_reg>; |
| vqmmc-supply = <&mt6397_vio18_reg>; |
| clocks = <&pericfg CLK_PERI_MSDC30_0>, |
| <&topckgen CLK_TOP_MSDC50_0_H_SEL>; |
| clock-names = "source", "hclk"; |
| pinctrl-names = "default", "state_uhs"; |
| pinctrl-0 = <&mmc0_pins_default>; |
| pinctrl-1 = <&mmc0_pins_uhs>; |
| assigned-clocks = <&topckgen CLK_TOP_MSDC50_0_SEL>; |
| assigned-clock-parents = <&topckgen CLK_TOP_MSDCPLL_D2>; |
| hs400-ds-delay = <0x14015>; |
| }; |
