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