1Spreadtrum SPI Controller 2 3Required properties: 4- compatible: Should be "sprd,sc9860-spi". 5- reg: Offset and length of SPI controller register space. 6- interrupts: Should contain SPI interrupt. 7- clock-names: Should contain following entries: 8 "spi" for SPI clock, 9 "source" for SPI source (parent) clock, 10 "enable" for SPI module enable clock. 11- clocks: List of clock input name strings sorted in the same order 12 as the clock-names property. 13- #address-cells: The number of cells required to define a chip select 14 address on the SPI bus. Should be set to 1. 15- #size-cells: Should be set to 0. 16 17Optional properties: 18dma-names: Should contain names of the SPI used DMA channel. 19dmas: Should contain DMA channels and DMA slave ids which the SPI used 20 sorted in the same order as the dma-names property. 21 22Example: 23spi0: spi@70a00000{ 24 compatible = "sprd,sc9860-spi"; 25 reg = <0 0x70a00000 0 0x1000>; 26 interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; 27 clock-names = "spi", "source","enable"; 28 clocks = <&clk_spi0>, <&ext_26m>, <&clk_ap_apb_gates 5>; 29 dma-names = "rx_chn", "tx_chn"; 30 dmas = <&apdma 11 11>, <&apdma 12 12>; 31 #address-cells = <1>; 32 #size-cells = <0>; 33}; 34