| * Energy Micro EFM32 SPI |
| |
| Required properties: |
| - #address-cells: see spi-bus.txt |
| - #size-cells: see spi-bus.txt |
| - compatible: should be "energymicro,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 |
| |
| Recommended properties : |
| - energymicro,location: Value to write to the ROUTE register's LOCATION |
| bitfield to configure the pinmux for the device, see |
| datasheet for values. |
| If this property is not provided, keeping what is |
| already configured in the hardware, so its either the |
| reset default 0 or whatever the bootloader did. |
| |
| Example: |
| |
| spi1: spi@4000c400 { /* USART1 */ |
| #address-cells = <1>; |
| #size-cells = <0>; |
| compatible = "energymicro,efm32-spi"; |
| reg = <0x4000c400 0x400>; |
| interrupts = <15 16>; |
| clocks = <&cmu 20>; |
| cs-gpios = <&gpio 51 1>; // D3 |
| energymicro,location = <1>; |
| |
| ks8851@0 { |
| compatible = "ks8851"; |
| spi-max-frequency = <6000000>; |
| reg = <0>; |
| interrupt-parent = <&boardfpga>; |
| interrupts = <4>; |
| }; |
| }; |
