fsl-esdhc.txt

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    1 * Freescale Enhanced Secure Digital Host Controller (eSDHC)
    2 
    3 The Enhanced Secure Digital Host Controller provides an interface
    4 for MMC, SD, and SDIO types of memory cards.
    5 
    6 This file documents differences between the core properties described
    7 by mmc.txt and the properties used by the sdhci-esdhc driver.
    8 
    9 Required properties:
   10   - compatible : should be "fsl,esdhc", or "fsl,<chip>-esdhc".
   11     Possible compatibles for PowerPC:
   12         "fsl,mpc8536-esdhc"
   13         "fsl,mpc8378-esdhc"
   14         "fsl,p2020-esdhc"
   15         "fsl,p4080-esdhc"
   16         "fsl,t1040-esdhc"
   17         "fsl,t4240-esdhc"
   18     Possible compatibles for ARM:
   19         "fsl,ls1012a-esdhc"
   20         "fsl,ls1028a-esdhc"
   21         "fsl,ls1088a-esdhc"
   22         "fsl,ls1043a-esdhc"
   23         "fsl,ls1046a-esdhc"
   24         "fsl,ls2080a-esdhc"
   25   - clock-frequency : specifies eSDHC base clock frequency.
   26 
   27 Optional properties:
   28   - sdhci,wp-inverted : specifies that eSDHC controller reports
   29     inverted write-protect state; New devices should use the generic
   30     "wp-inverted" property.
   31   - sdhci,1-bit-only : specifies that a controller can only handle
   32     1-bit data transfers. New devices should use the generic
   33     "bus-width = <1>" property.
   34   - sdhci,auto-cmd12: specifies that a controller can only handle auto
   35     CMD12.
   36   - voltage-ranges : two cells are required, first cell specifies minimum
   37     slot voltage (mV), second cell specifies maximum slot voltage (mV).
   38     Several ranges could be specified.
   39   - little-endian : If the host controller is little-endian mode, specify
   40     this property. The default endian mode is big-endian.
   41 
   42 Example:
   43 
   44 sdhci@2e000 {
   45         compatible = "fsl,mpc8378-esdhc", "fsl,esdhc";
   46         reg = <0x2e000 0x1000>;
   47         interrupts = <42 0x8>;
   48         interrupt-parent = <&ipic>;
   49         /* Filled in by U-Boot */
   50         clock-frequency = <0>;
   51         voltage-ranges = <3300 3300>;
   52 };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/mmc/fsl-esdhc.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/mmc/fsl-esdhc.txt