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ARM: dt: tegra: Add Tegra APB DMA device tree binding
Document binding, and add the node to tegra*.dtsi.
The driver isn't actually instantiated from this node yet, but the I2S
binding will rely on being able to refer to the APB DMA node using a
phandle.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
authored by
Stephen Warren
and committed by
Olof Johansson
8051b75a
f8196b01
+88
+30
Documentation/devicetree/bindings/dma/tegra20-apbdma.txt
+30
Documentation/devicetree/bindings/dma/tegra20-apbdma.txt
···
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* NVIDIA Tegra APB DMA controller
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Required properties:
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- compatible: Should be "nvidia,<chip>-apbdma"
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- reg: Should contain DMA registers location and length. This shuld include
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all of the per-channel registers.
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- interrupts: Should contain all of the per-channel DMA interrupts.
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Examples:
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apbdma: dma@6000a000 {
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compatible = "nvidia,tegra20-apbdma";
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reg = <0x6000a000 0x1200>;
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interrupts = < 0 136 0x04
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0 137 0x04
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0 138 0x04
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0 139 0x04
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0 140 0x04
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0 141 0x04
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0 142 0x04
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0 143 0x04
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0 144 0x04
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0 145 0x04
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0 146 0x04
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0 147 0x04
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0 148 0x04
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0 149 0x04
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0 150 0x04
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0 151 0x04 >;
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};
+21
arch/arm/boot/dts/tegra20.dtsi
+21
arch/arm/boot/dts/tegra20.dtsi
···
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< 0x50040100 0x0100 >;
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};
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apbdma: dma@6000a000 {
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compatible = "nvidia,tegra20-apbdma";
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reg = <0x6000a000 0x1200>;
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interrupts = < 0 104 0x04
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0 105 0x04
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0 106 0x04
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0 107 0x04
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0 108 0x04
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0 109 0x04
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0 110 0x04
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0 111 0x04
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0 112 0x04
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0 113 0x04
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0 114 0x04
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0 115 0x04
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0 116 0x04
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0 117 0x04
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0 118 0x04
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0 119 0x04 >;
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};
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i2c@7000c000 {
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#address-cells = <1>;
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#size-cells = <0>;
+37
arch/arm/boot/dts/tegra30.dtsi
+37
arch/arm/boot/dts/tegra30.dtsi
···
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< 0x50040100 0x0100 >;
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};
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apbdma: dma@6000a000 {
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compatible = "nvidia,tegra30-apbdma", "nvidia,tegra20-apbdma";
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reg = <0x6000a000 0x1400>;
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interrupts = < 0 104 0x04
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0 105 0x04
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0 106 0x04
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0 107 0x04
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0 108 0x04
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0 109 0x04
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0 110 0x04
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0 111 0x04
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0 112 0x04
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0 113 0x04
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0 114 0x04
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0 115 0x04
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0 116 0x04
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0 117 0x04
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0 118 0x04
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0 119 0x04
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0 128 0x04
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0 129 0x04
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0 130 0x04
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0 131 0x04
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0 132 0x04
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0 133 0x04
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0 134 0x04
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0 135 0x04
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0 136 0x04
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0 137 0x04
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0 138 0x04
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0 139 0x04
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0 140 0x04
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0 141 0x04
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0 142 0x04
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0 143 0x04 >;
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};
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i2c@7000c000 {
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#address-cells = <1>;
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#size-cells = <0>;