The A64 SoC has a DMA controller that supports 8 DMA channels
to and from various peripherals. The last used DRQ port is 27.
Add a device node for it.
Signed-off-by: Stefan Brüns <stefan.bruens@xxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index e9a9d7fb01c8..4f060ecdb061 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -136,6 +136,17 @@
reg = <0x01c00000 0x1000>;
};
+ dma: dma-controller@01c02000 {
+ compatible = "allwinner,sun50i-a64-dma";
+ reg = <0x01c02000 0x1000>;
+ interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_DMA>;
+ dma-channels = <8>;
+ dma-requests = <27>;
+ resets = <&ccu RST_BUS_DMA>;
+ #dma-cells = <1>;
+ };
+
mmc0: mmc@1c0f000 {
compatible = "allwinner,sun50i-a64-mmc";
reg = <0x01c0f000 0x1000>;
--
2.14.1
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