1* Samsung's SDHCI Controller device tree bindings 2 3Samsung's SDHCI controller is used as a connectivity interface with external 4MMC, SD and eMMC storage mediums. This file documents differences between the 5core mmc properties described by mmc.txt and the properties used by the 6Samsung implementation of the SDHCI controller. 7 8Required SoC Specific Properties: 9- compatible: should be one of the following 10 - "samsung,s3c6410-sdhci": For controllers compatible with s3c6410 sdhci 11 controller. 12 - "samsung,exynos4210-sdhci": For controllers compatible with Exynos4 sdhci 13 controller. 14 15Required Board Specific Properties: 16- pinctrl-0: Should specify pin control groups used for this controller. 17- pinctrl-names: Should contain only one value - "default". 18 19Example: 20 sdhci@12530000 { 21 compatible = "samsung,exynos4210-sdhci"; 22 reg = <0x12530000 0x100>; 23 interrupts = <0 75 0>; 24 bus-width = <4>; 25 cd-gpios = <&gpk2 2 0>; 26 pinctrl-names = "default"; 27 pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4>; 28 }; 29 30 Note: This example shows both SoC specific and board specific properties 31 in a single device node. The properties can be actually be separated 32 into SoC specific node and board specific node. 33