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Serial Peripheral Interface on Cirrus Logic CL-PS71xx, EP72xx, EP73xx Required properties - #address-cells: must be <1> - #size-cells: must be <0> - compatible: should include "cirrus,ep7209-spi" - reg: Address and length of one register range - interrupts: one interrupt line - clocks: One entry, refers to the SPI bus clock - cs-gpios: Specifies the gpio pins to be used for chipselects. See: Documentation/devicetree/bindings/spi/spi-bus.txt An additional register is present in the system controller, which is assumed to be in the same device tree, with and marked as compatible with "cirrus,ep7209-syscon3". Example: spi@80000500 { #address-cells = <1>; #size-cells = <0>; compatible = "cirrus,ep7209-spi"; reg = <0x80000500 0x4>; interrupts = <15>; clocks = <&clks CLPS711X_CLK_SPI>; }; syscon3: syscon@80002200 { compatible = "cirrus,ep7209-syscon3", "syscon"; reg = <0x80002200 0x40>; }; |