1OMAP2+ McSPI device 2 3Required properties: 4- compatible : 5 - "ti,omap2-mcspi" for OMAP2 & OMAP3. 6 - "ti,omap4-mcspi" for OMAP4+. 7- ti,spi-num-cs : Number of chipselect supported by the instance. 8- ti,hwmods: Name of the hwmod associated to the McSPI 9- ti,pindir-d0-out-d1-in: Select the D0 pin as output and D1 as 10 input. The default is D0 as input and 11 D1 as output. 12 13Optional properties: 14- dmas: List of DMA specifiers with the controller specific format 15 as described in the generic DMA client binding. A tx and rx 16 specifier is required for each chip select. 17- dma-names: List of DMA request names. These strings correspond 18 1:1 with the DMA specifiers listed in dmas. The string naming 19 is to be "rxN" and "txN" for RX and TX requests, 20 respectively, where N equals the chip select number. 21 22Examples: 23 24[hwmod populated DMA resources] 25 26mcspi1: mcspi@1 { 27 #address-cells = <1>; 28 #size-cells = <0>; 29 compatible = "ti,omap4-mcspi"; 30 ti,hwmods = "mcspi1"; 31 ti,spi-num-cs = <4>; 32}; 33 34[generic DMA request binding] 35 36mcspi1: mcspi@1 { 37 #address-cells = <1>; 38 #size-cells = <0>; 39 compatible = "ti,omap4-mcspi"; 40 ti,hwmods = "mcspi1"; 41 ti,spi-num-cs = <2>; 42 dmas = <&edma 42 43 &edma 43 44 &edma 44 45 &edma 45>; 46 dma-names = "tx0", "rx0", "tx1", "rx1"; 47}; 48