* Freescale MXS DMA Required properties: - compatible : Should be "fsl,<chip>-dma-apbh" or "fsl,<chip>-dma-apbx" - reg : Should contain registers location and length - interrupts : Should contain the interrupt numbers of DMA channels. If a channel is empty/reserved, 0 should be filled in place. - #dma-cells : Must be <1>. The number cell specifies the channel ID. - dma-channels : Number of channels supported by the DMA controller Optional properties: - interrupt-names : Name of DMA channel interrupts Supported chips: imx23, imx28. Examples: dma_apbh: dma-apbh@80004000 { compatible = "fsl,imx28-dma-apbh"; reg = <0x80004000 0x2000>; interrupts = <82 83 84 85 88 88 88 88 88 88 88 88 87 86 0 0>; interrupt-names = "ssp0", "ssp1", "ssp2", "ssp3", "gpmi0", "gmpi1", "gpmi2", "gmpi3", "gpmi4", "gmpi5", "gpmi6", "gmpi7", "hsadc", "lcdif", "empty", "empty"; #dma-cells = <1>; dma-channels = <16>; }; dma_apbx: dma-apbx@80024000 { compatible = "fsl,imx28-dma-apbx"; reg = <0x80024000 0x2000>; interrupts = <78 79 66 0 80 81 68 69 70 71 72 73 74 75 76 77>; interrupt-names = "auart4-rx", "auart4-tx", "spdif-tx", "empty", "saif0", "saif1", "i2c0", "i2c1", "auart0-rx", "auart0-tx", "auart1-rx", "auart1-tx", "auart2-rx", "auart2-tx", "auart3-rx", "auart3-tx"; #dma-cells = <1>; dma-channels = <16>; }; DMA clients connected to the MXS DMA controller must use the format described in the dma.txt file. Examples: auart0: serial@8006a000 { compatible = "fsl,imx28-auart", "fsl,imx23-auart"; reg = <0x8006a000 0x2000>; interrupts = <112>; dmas = <&dma_apbx 8>, <&dma_apbx 9>; dma-names = "rx", "tx"; };