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The sh-mmcif driver implements DT support but the bindings are not documented. Document them. Cc: devicetree@vger.kernel.org Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
33 lines
1.0 KiB
Plaintext
33 lines
1.0 KiB
Plaintext
* Renesas Multi Media Card Interface (MMCIF) Controller
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This file documents differences between the core properties in mmc.txt
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and the properties used by the MMCIF device.
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Required properties:
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- compatible: must contain one of the following
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- "renesas,mmcif-r8a7740" for the MMCIF found in r8a7740 SoCs
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- "renesas,mmcif-r8a7790" for the MMCIF found in r8a7790 SoCs
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- "renesas,mmcif-r8a7791" for the MMCIF found in r8a7791 SoCs
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- "renesas,sh-mmcif" for the generic MMCIF
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- clocks: reference to the functional clock
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- dmas: reference to the DMA channels, one per channel name listed in the
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dma-names property.
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- dma-names: must contain "tx" for the transmit DMA channel and "rx" for the
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receive DMA channel.
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Example: R8A7790 (R-Car H2) MMCIF0
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mmcif0: mmc@ee200000 {
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compatible = "renesas,mmcif-r8a7790", "renesas,sh-mmcif";
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reg = <0 0xee200000 0 0x80>;
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interrupts = <0 169 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&mstp3_clks R8A7790_CLK_MMCIF0>;
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dmas = <&dmac0 0xd1>, <&dmac0 0xd2>;
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dma-names = "tx", "rx";
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};
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