162306a36Sopenharmony_ciSpreadtrum SPI Controller 262306a36Sopenharmony_ci 362306a36Sopenharmony_ciRequired properties: 462306a36Sopenharmony_ci- compatible: Should be "sprd,sc9860-spi". 562306a36Sopenharmony_ci- reg: Offset and length of SPI controller register space. 662306a36Sopenharmony_ci- interrupts: Should contain SPI interrupt. 762306a36Sopenharmony_ci- clock-names: Should contain following entries: 862306a36Sopenharmony_ci "spi" for SPI clock, 962306a36Sopenharmony_ci "source" for SPI source (parent) clock, 1062306a36Sopenharmony_ci "enable" for SPI module enable clock. 1162306a36Sopenharmony_ci- clocks: List of clock input name strings sorted in the same order 1262306a36Sopenharmony_ci as the clock-names property. 1362306a36Sopenharmony_ci- #address-cells: The number of cells required to define a chip select 1462306a36Sopenharmony_ci address on the SPI bus. Should be set to 1. 1562306a36Sopenharmony_ci- #size-cells: Should be set to 0. 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ciOptional properties: 1862306a36Sopenharmony_cidma-names: Should contain names of the SPI used DMA channel. 1962306a36Sopenharmony_cidmas: Should contain DMA channels and DMA slave ids which the SPI used 2062306a36Sopenharmony_ci sorted in the same order as the dma-names property. 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ciExample: 2362306a36Sopenharmony_cispi0: spi@70a00000{ 2462306a36Sopenharmony_ci compatible = "sprd,sc9860-spi"; 2562306a36Sopenharmony_ci reg = <0 0x70a00000 0 0x1000>; 2662306a36Sopenharmony_ci interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; 2762306a36Sopenharmony_ci clock-names = "spi", "source","enable"; 2862306a36Sopenharmony_ci clocks = <&clk_spi0>, <&ext_26m>, <&clk_ap_apb_gates 5>; 2962306a36Sopenharmony_ci dma-names = "rx_chn", "tx_chn"; 3062306a36Sopenharmony_ci dmas = <&apdma 11 11>, <&apdma 12 12>; 3162306a36Sopenharmony_ci #address-cells = <1>; 3262306a36Sopenharmony_ci #size-cells = <0>; 3362306a36Sopenharmony_ci}; 34