Spreadtrum SPI Controller
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Required properties:
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- compatible: Should be "sprd,sc9860-spi".
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- reg: Offset and length of SPI controller register space.
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- interrupts: Should contain SPI interrupt.
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- clock-names: Should contain following entries:
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"spi" for SPI clock,
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"source" for SPI source (parent) clock,
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"enable" for SPI module enable clock.
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- clocks: List of clock input name strings sorted in the same order
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as the clock-names property.
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- #address-cells: The number of cells required to define a chip select
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address on the SPI bus. Should be set to 1.
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- #size-cells: Should be set to 0.
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Optional properties:
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dma-names: Should contain names of the SPI used DMA channel.
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dmas: Should contain DMA channels and DMA slave ids which the SPI used
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sorted in the same order as the dma-names property.
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Example:
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spi0: spi@70a00000{
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compatible = "sprd,sc9860-spi";
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reg = <0 0x70a00000 0 0x1000>;
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interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
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clock-names = "spi", "source","enable";
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clocks = <&clk_spi0>, <&ext_26m>, <&clk_ap_apb_gates 5>;
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dma-names = "rx_chn", "tx_chn";
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dmas = <&apdma 11 11>, <&apdma 12 12>;
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#address-cells = <1>;
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#size-cells = <0>;
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};
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