arm64: dts: allwinner: a100: Add device node for DMA controller

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@allwinnertech.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220830020824.62288-3-samuel@sholland.org

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
index 548539c93ab0c8803504437f901cd1cb959a1386..5453a3bb7d81a7325005ad75f9bcc0047cac442c 100644 (file)
--- a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
@@ -101,6 +101,18 @@
                        #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>,