| * Samsung's SDHCI Controller device tree bindings |
| |
| Samsung's SDHCI controller is used as a connectivity interface with external |
| MMC, SD and eMMC storage mediums. This file documents differences between the |
| core mmc properties described by mmc.txt and the properties used by the |
| Samsung implementation of the SDHCI controller. |
| |
| Required SoC Specific Properties: |
| - compatible: should be one of the following |
| - "samsung,s3c6410-sdhci": For controllers compatible with s3c6410 sdhci |
| controller. |
| - "samsung,exynos4210-sdhci": For controllers compatible with Exynos4 sdhci |
| controller. |
| |
| Required Board Specific Properties: |
| - pinctrl-0: Should specify pin control groups used for this controller. |
| - pinctrl-names: Should contain only one value - "default". |
| |
| Example: |
| sdhci@12530000 { |
| compatible = "samsung,exynos4210-sdhci"; |
| reg = <0x12530000 0x100>; |
| interrupts = <0 75 0>; |
| bus-width = <4>; |
| cd-gpios = <&gpk2 2 0>; |
| pinctrl-names = "default"; |
| pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4>; |
| }; |
| |
| Note: This example shows both SoC specific and board specific properties |
| in a single device node. The properties can be actually be separated |
| into SoC specific node and board specific node. |
