[PATCH 2/3] arm64: dts: allwinner: a100: Add device node for DMA controller
From: Samuel Holland
Date: Mon Aug 29 2022 - 22:08:49 EST
From: Yangtao Li <frank@xxxxxxxxxxxxxxxxx>
The A100 SoC has a DMA controller that supports 8 DMA channels
to and from various peripherals.
Add a device node for it.
Signed-off-by: Yangtao Li <frank@xxxxxxxxxxxxxxxxx>
Signed-off-by: Samuel Holland <samuel@xxxxxxxxxxxx>
---
Changes in v1:
- From previous submission: fixed off-by-one in dma-requests property
arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
index 548539c93ab0..5453a3bb7d81 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
@@ -101,6 +101,18 @@ ccu: clock@3001000 {
#reset-cells = <1>;
};
+ dma: dma-controller@3002000 {
+ compatible = "allwinner,sun50i-a100-dma";
+ reg = <0x03002000 0x1000>;
+ interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_DMA>, <&ccu CLK_MBUS_DMA>;
+ clock-names = "bus", "mbus";
+ resets = <&ccu RST_BUS_DMA>;
+ dma-channels = <8>;
+ dma-requests = <52>;
+ #dma-cells = <1>;
+ };
+
gic: interrupt-controller@3021000 {
compatible = "arm,gic-400";
reg = <0x03021000 0x1000>, <0x03022000 0x2000>,
--
2.35.1