sdhci-omap.txt

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    1 * TI OMAP SDHCI Controller
    2 
    3 Refer to mmc.txt for standard MMC bindings.
    4 
    5 For UHS devices which require tuning, the device tree should have a "cpu_thermal" node which maps to the appropriate thermal zone. This is used to get the temperature of the zone during tuning.
    6 
    7 Required properties:
    8 - compatible: Should be "ti,omap2430-sdhci" for omap2430 controllers
    9               Should be "ti,omap3-sdhci" for omap3 controllers
   10               Should be "ti,omap4-sdhci" for omap4 and ti81 controllers
   11               Should be "ti,omap5-sdhci" for omap5 controllers
   12               Should be "ti,dra7-sdhci" for DRA7 and DRA72 controllers
   13               Should be "ti,k2g-sdhci" for K2G
   14               Should be "ti,am335-sdhci" for am335x controllers
   15               Should be "ti,am437-sdhci" for am437x controllers
   16 - ti,hwmods: Must be "mmc<n>", <n> is controller instance starting 1
   17              (Not required for K2G).
   18 - pinctrl-names: Should be subset of "default", "hs", "sdr12", "sdr25", "sdr50",
   19                  "ddr50-rev11", "sdr104-rev11", "ddr50", "sdr104",
   20                  "ddr_1_8v-rev11", "ddr_1_8v" or "ddr_3_3v", "hs200_1_8v-rev11",
   21                  "hs200_1_8v",
   22 - pinctrl-<n> : Pinctrl states as described in bindings/pinctrl/pinctrl-bindings.txt
   23 
   24 Optional properties:
   25 - dmas:         List of DMA specifiers with the controller specific format as described
   26                 in the generic DMA client binding. A tx and rx specifier is required.
   27 - dma-names:    List of DMA request names. These strings correspond 1:1 with the
   28                 DMA specifiers listed in dmas. The string naming is to be "tx"
   29                 and "rx" for TX and RX DMA requests, respectively.
   30 
   31 Deprecated properties:
   32 - ti,non-removable: Compatible with the generic non-removable property
   33 
   34 Example:
   35         mmc1: mmc@4809c000 {
   36                 compatible = "ti,dra7-sdhci";
   37                 reg = <0x4809c000 0x400>;
   38                 ti,hwmods = "mmc1";
   39                 bus-width = <4>;
   40                 vmmc-supply = <&vmmc>; /* phandle to regulator node */
   41                 dmas = <&sdma 61 &sdma 62>;
   42                 dma-names = "tx", "rx";
   43         };

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sys/contrib/device-tree/Bindings/mmc/sdhci-omap.txt