1Serial Peripheral Interface on Cirrus Logic CL-PS71xx, EP72xx, EP73xx 2 3Required properties 4- #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 range 8- interrupts: one interrupt line 9- clocks: One entry, refers to the SPI bus clock 10- cs-gpios: Specifies the gpio pins to be used for chipselects. 11 See: Documentation/devicetree/bindings/spi/spi-bus.txt 12 13An additional register is present in the system controller, 14which is assumed to be in the same device tree, with and marked 15as 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 status = "disabled"; 27}; 28 29syscon3: syscon@80002200 { 30 compatible = "cirrus,ep7209-syscon3", "syscon"; 31 reg = <0x80002200 0x40>; 32}; 33 34