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53bcebbe81
Add binding for the TI's sdhci-omap controller present in am335x and am437x devices. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200116105154.7685-9-faiz_abbas@ti.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
37 lines
1.5 KiB
Plaintext
37 lines
1.5 KiB
Plaintext
* TI OMAP SDHCI Controller
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Refer to mmc.txt for standard MMC bindings.
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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.
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Required properties:
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- compatible: Should be "ti,dra7-sdhci" for DRA7 and DRA72 controllers
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Should be "ti,k2g-sdhci" for K2G
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Should be "ti,am335-sdhci" for am335x controllers
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Should be "ti,am437-sdhci" for am437x controllers
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- ti,hwmods: Must be "mmc<n>", <n> is controller instance starting 1
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(Not required for K2G).
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- pinctrl-names: Should be subset of "default", "hs", "sdr12", "sdr25", "sdr50",
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"ddr50-rev11", "sdr104-rev11", "ddr50", "sdr104",
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"ddr_1_8v-rev11", "ddr_1_8v" or "ddr_3_3v", "hs200_1_8v-rev11",
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"hs200_1_8v",
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- pinctrl-<n> : Pinctrl states as described in bindings/pinctrl/pinctrl-bindings.txt
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Optional properties:
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- dmas: List of DMA specifiers with the controller specific format as described
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in the generic DMA client binding. A tx and rx specifier is required.
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- dma-names: List of DMA request names. These strings correspond 1:1 with the
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DMA specifiers listed in dmas. The string naming is to be "tx"
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and "rx" for TX and RX DMA requests, respectively.
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Example:
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mmc1: mmc@4809c000 {
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compatible = "ti,dra7-sdhci";
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reg = <0x4809c000 0x400>;
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ti,hwmods = "mmc1";
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bus-width = <4>;
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vmmc-supply = <&vmmc>; /* phandle to regulator node */
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dmas = <&sdma 61 &sdma 62>;
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dma-names = "tx", "rx";
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};
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