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Samsung-sdhci.txt Guest on 8th February 2021 09:22:43 AM
  1. * Samsung's SDHCI Controller device tree bindings
  2.  
  3. Samsung's SDHCI controller is used as a connectivity interface with external
  4. MMC, SD and eMMC storage mediums. This file documents differences between the
  5. core mmc properties described by mmc.txt and the properties used by the
  6. Samsung implementation of the SDHCI controller.
  7.  
  8. Required 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.  
  15. Required 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.  
  19. Example:
  20.             compatible = "samsung,exynos4210-sdhci";
  21.             reg = <0x12530000 0x100>;
  22.             interrupts = <0 75 0>;
  23.             bus-width = <4>;
  24.             cd-gpios = <&gpk2 2 0>;
  25.             pinctrl-names = "default";
  26.             pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4>;
  27.       };
  28.  
  29.       Note: This example shows both SoC specific and board specific properties
  30.       in a single device node. The properties can be actually be separated
  31.       into SoC specific node and board specific node.

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