/Documentation/powerpc/dts-bindings/mmc-spi-slot.txt

https://bitbucket.org/sammyz/iscream_thunderc-2.6.35-rebase · Plain Text · 23 lines · 20 code · 3 blank · 0 comment · 0 complexity · 81fd04b7aaef428d49e310748d70a26b MD5 · raw file 

    

  1. MMC/SD/SDIO slot directly connected to a SPI bus
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  2. 

  3. Required properties:
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  4. - compatible : should be "mmc-spi-slot".
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  5. - reg : should specify SPI address (chip-select number).
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  6. - spi-max-frequency : maximum frequency for this device (Hz).
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  7. - voltage-ranges : two cells are required, first cell specifies minimum
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  8.   slot voltage (mV), second cell specifies maximum slot voltage (mV).
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  9.   Several ranges could be specified.
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  10. - gpios : (optional) may specify GPIOs in this order: Card-Detect GPIO,
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  11.   Write-Protect GPIO.
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  12. 

  13. Example:
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  14. 

  15. 	mmc-slot@0 {
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  16. 		compatible = "fsl,mpc8323rdb-mmc-slot",
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  17. 			     "mmc-spi-slot";
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  18. 		reg = <0>;
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  19. 		gpios = <&qe_pio_d 14 1
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  20. 			 &qe_pio_d 15 0>;
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  21. 		voltage-ranges = <3300 3300>;
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  22. 		spi-max-frequency = <50000000>;
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  23. 	};
    24.