1 * Energy Micro EFM32 SPI
4 - #address-cells: see spi-bus.txt
5 - #size-cells: see spi-bus.txt
6 - compatible: should be "energymicro,efm32-spi"
7 - reg: Offset and length of the register set for the controller
8 - interrupts: pair specifying rx and tx irq
9 - clocks: phandle to the spi clock
10 - cs-gpios: see spi-bus.txt
12 Recommended properties :
13 - energymicro,location: Value to write to the ROUTE register's LOCATION
14 bitfield to configure the pinmux for the device, see
16 If this property is not provided, keeping what is
17 already configured in the hardware, so its either the
18 reset default 0 or whatever the bootloader did.
22 spi1: spi@4000c400 { /* USART1 */
25 compatible = "energymicro,efm32-spi";
26 reg = <0x4000c400 0x400>;
29 cs-gpios = <&gpio 51 1>; // D3
30 energymicro,location = <1>;
33 compatible = "ks8851";
34 spi-max-frequency = <6000000>;
36 interrupt-parent = <&boardfpga>;