| Uwe Kleine-König | 86f8973 | 2013-08-08 16:09:50 +0200 | [diff] [blame] | 1 | * Energy Micro EFM32 SPI |
| 2 | |
| 3 | Required properties: |
| 4 | - #address-cells: see spi-bus.txt |
| 5 | - #size-cells: see spi-bus.txt |
| 6 | - compatible: should be "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 |
| 11 | - location: Value to write to the ROUTE register's LOCATION bitfield to configure the pinmux for the device, see datasheet for values. |
| 12 | |
| 13 | Example: |
| 14 | |
| 15 | spi1: spi@0x4000c400 { /* USART1 */ |
| 16 | #address-cells = <1>; |
| 17 | #size-cells = <0>; |
| 18 | compatible = "efm32,spi"; |
| 19 | reg = <0x4000c400 0x400>; |
| 20 | interrupts = <15 16>; |
| 21 | clocks = <&cmu 20>; |
| 22 | cs-gpios = <&gpio 51 1>; // D3 |
| 23 | location = <1>; |
| 24 | status = "ok"; |
| 25 | |
| 26 | ks8851@0 { |
| 27 | compatible = "ks8851"; |
| 28 | spi-max-frequency = <6000000>; |
| 29 | reg = <0>; |
| 30 | interrupt-parent = <&boardfpga>; |
| 31 | interrupts = <4>; |
| 32 | status = "ok"; |
| 33 | }; |
| 34 | }; |