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* Energy Micro EFM32 SPI
Required properties:
- #address-cells: see spi-bus.txt
- #size-cells: see spi-bus.txt
- compatible: should be "efm32,spi"
- reg: Offset and length of the register set for the controller
- interrupts: pair specifying rx and tx irq
- clocks: phandle to the spi clock
- cs-gpios: see spi-bus.txt
- location: Value to write to the ROUTE register's LOCATION bitfield to configure the pinmux for the device, see datasheet for values.
Example:
spi1: spi@0x4000c400 { /* USART1 */
#address-cells = <1>;
#size-cells = <0>;
compatible = "efm32,spi";
reg = <0x4000c400 0x400>;
interrupts = <15 16>;
clocks = <&cmu 20>;
cs-gpios = <&gpio 51 1>; // D3
location = <1>;
status = "ok";
ks8851@0 {
compatible = "ks8851";
spi-max-frequency = <6000000>;
reg = <0>;
interrupt-parent = <&boardfpga>;
interrupts = <4>;
status = "ok";
};
};
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