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ARM: dt: tegra: Add Tegra APB DMA device tree binding

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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>
This commit is contained in:
Stephen Warren 2012-01-11 16:09:54 -07:00 committed by Olof Johansson
parent f8196b01b9
commit 8051b75ab3
3 changed files with 88 additions and 0 deletions
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30
Documentation/devicetree/bindings/dma/tegra20-apbdma.txt Normal file
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@ -0,0 +1,30 @@
* NVIDIA Tegra APB DMA controller
Required properties:
- compatible: Should be "nvidia,<chip>-apbdma"
- reg: Should contain DMA registers location and length. This shuld include
all of the per-channel registers.
- interrupts: Should contain all of the per-channel DMA interrupts.
Examples:
apbdma: dma@6000a000 {
compatible = "nvidia,tegra20-apbdma";
reg = <0x6000a000 0x1200>;
interrupts = < 0 136 0x04
0 137 0x04
0 138 0x04
0 139 0x04
0 140 0x04
0 141 0x04
0 142 0x04
0 143 0x04
0 144 0x04
0 145 0x04
0 146 0x04
0 147 0x04
0 148 0x04
0 149 0x04
0 150 0x04
0 151 0x04 >;
};

21
arch/arm/boot/dts/tegra20.dtsi
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@ -12,6 +12,27 @@
< 0x50040100 0x0100 >;
};
apbdma: dma@6000a000 {
compatible = "nvidia,tegra20-apbdma";
reg = <0x6000a000 0x1200>;
interrupts = < 0 104 0x04
0 105 0x04
0 106 0x04
0 107 0x04
0 108 0x04
0 109 0x04
0 110 0x04
0 111 0x04
0 112 0x04
0 113 0x04
0 114 0x04
0 115 0x04
0 116 0x04
0 117 0x04
0 118 0x04
0 119 0x04 >;
};
i2c@7000c000 {
#address-cells = <1>;
#size-cells = <0>;

37
arch/arm/boot/dts/tegra30.dtsi
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@ -12,6 +12,43 @@
< 0x50040100 0x0100 >;
};
apbdma: dma@6000a000 {
compatible = "nvidia,tegra30-apbdma", "nvidia,tegra20-apbdma";
reg = <0x6000a000 0x1400>;
interrupts = < 0 104 0x04
0 105 0x04
0 106 0x04
0 107 0x04
0 108 0x04
0 109 0x04
0 110 0x04
0 111 0x04
0 112 0x04
0 113 0x04
0 114 0x04
0 115 0x04
0 116 0x04
0 117 0x04
0 118 0x04
0 119 0x04
0 128 0x04
0 129 0x04
0 130 0x04
0 131 0x04
0 132 0x04
0 133 0x04
0 134 0x04
0 135 0x04
0 136 0x04
0 137 0x04
0 138 0x04
0 139 0x04
0 140 0x04
0 141 0x04
0 142 0x04
0 143 0x04 >;
};
i2c@7000c000 {
#address-cells = <1>;
#size-cells = <0>;