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1Serial Peripheral Interface on Cirrus Logic CL-PS71xx, EP72xx, EP73xx2 3Required properties4- #address-cells: must be <1>5- #size-cells: must be <0>6- compatible: should include "cirrus,ep7209-spi"7- reg: Address and length of one register range8- interrupts: one interrupt line9- clocks: One entry, refers to the SPI bus clock10- cs-gpios: Specifies the gpio pins to be used for chipselects.11 See: Documentation/devicetree/bindings/spi/spi-bus.txt12 13An additional register is present in the system controller,14which is assumed to be in the same device tree, with and marked15as compatible with "cirrus,ep7209-syscon3".16 17Example:18 19spi@80000500 {20 #address-cells = <1>;21 #size-cells = <0>;22 compatible = "cirrus,ep7209-spi";23 reg = <0x80000500 0x4>;24 interrupts = <15>;25 clocks = <&clks CLPS711X_CLK_SPI>;26};27 28syscon3: syscon@80002200 {29 compatible = "cirrus,ep7209-syscon3", "syscon";30 reg = <0x80002200 0x40>;31};32 33