40 lines
1.2 KiB
Plaintext
40 lines
1.2 KiB
Plaintext
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* Ingenic JZ47xx MMC controllers
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This file documents the device tree properties used for the MMC controller in
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Ingenic JZ4740/JZ4780 SoCs. These are in addition to the core MMC properties
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described in mmc.txt.
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Required properties:
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- compatible: Should be one of the following:
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- "ingenic,jz4740-mmc" for the JZ4740
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- "ingenic,jz4725b-mmc" for the JZ4725B
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- "ingenic,jz4780-mmc" for the JZ4780
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- reg: Should contain the MMC controller registers location and length.
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- interrupts: Should contain the interrupt specifier of the MMC controller.
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- clocks: Clock for the MMC controller.
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Optional properties:
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- dmas: List of DMA specifiers with the controller specific format
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as described in the generic DMA client binding. A tx and rx
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specifier is required.
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- dma-names: RX and TX DMA request names.
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Should be "rx" and "tx", in that order.
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For additional details on DMA client bindings see ../dma/dma.txt.
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Example:
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mmc0: mmc@13450000 {
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compatible = "ingenic,jz4780-mmc";
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reg = <0x13450000 0x1000>;
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interrupt-parent = <&intc>;
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interrupts = <37>;
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clocks = <&cgu JZ4780_CLK_MSC0>;
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clock-names = "mmc";
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dmas = <&dma JZ4780_DMA_MSC0_RX 0xffffffff>, <&dma JZ4780_DMA_MSC0_TX 0xffffffff>;
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dma-names = "rx", "tx";
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};
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