1Microchip PIC32 SPI Master controller 2 3Required properties: 4- compatible: Should be "microchip,pic32mzda-spi". 5- reg: Address and length of register space for the device. 6- interrupts: Should contain all three spi interrupts in sequence 7 of <fault-irq>, <receive-irq>, <transmit-irq>. 8- interrupt-names: Should be "fault", "rx", "tx" in order. 9- clocks: Phandle of the clock generating SPI clock on the bus. 10- clock-names: Should be "mck0". 11- cs-gpios: Specifies the gpio pins to be used for chipselects. 12 See: Documentation/devicetree/bindings/spi/spi-bus.txt 13 14Optional properties: 15- dmas: Two or more DMA channel specifiers following the convention outlined 16 in Documentation/devicetree/bindings/dma/dma.txt 17- dma-names: Names for the dma channels. There must be at least one channel 18 named "spi-tx" for transmit and named "spi-rx" for receive. 19 20Example: 21 22spi1: spi@1f821000 { 23 compatible = "microchip,pic32mzda-spi"; 24 reg = <0x1f821000 0x200>; 25 interrupts = <109 IRQ_TYPE_LEVEL_HIGH>, 26 <110 IRQ_TYPE_LEVEL_HIGH>, 27 <111 IRQ_TYPE_LEVEL_HIGH>; 28 interrupt-names = "fault", "rx", "tx"; 29 clocks = <&PBCLK2>; 30 clock-names = "mck0"; 31 cs-gpios = <&gpio3 4 GPIO_ACTIVE_LOW>; 32 dmas = <&dma 134>, <&dma 135>; 33 dma-names = "spi-rx", "spi-tx"; 34}; 35