[PATCH 05/11] riscv: dts: sophgo: sg2044: add DMA controller device

From: Inochi Amaoto
Date: Sun Jun 08 2025 - 19:31:20 EST


The DMA controller of SG2044 is a standard Synopsys IP, which is
already supported by the kernel.

Add DMA controller DT node for SG2044.

Signed-off-by: Inochi Amaoto <inochiama@xxxxxxxxx>
---
arch/riscv/boot/dts/sophgo/sg2044.dtsi | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/sg2044.dtsi b/arch/riscv/boot/dts/sophgo/sg2044.dtsi
index a25cbb78913d..a4d2f8a13cc3 100644
--- a/arch/riscv/boot/dts/sophgo/sg2044.dtsi
+++ b/arch/riscv/boot/dts/sophgo/sg2044.dtsi
@@ -31,6 +31,26 @@ soc {
#size-cells = <2>;
ranges;

+ dmac0: dma-controller@7020000000 {
+ compatible = "snps,axi-dma-1.01a";
+ reg = <0x70 0x20000000 0x0 0x10000>;
+ #dma-cells = <1>;
+ clock-names = "core-clk", "cfgr-clk";
+ clocks = <&clk CLK_GATE_SYSDMA_AXI>,
+ <&clk CLK_GATE_SYSDMA_AXI>;
+ dma-noncoherent;
+ interrupt-parent = <&intc>;
+ interrupts = <36 IRQ_TYPE_LEVEL_HIGH>;
+ dma-channels = <8>;
+ snps,priority = <0 1 2 3 4 5 6 7>;
+ snps,block-size = <4096 4096 4096 4096
+ 4096 4096 4096 4096>;
+ snps,dma-masters = <2>;
+ snps,data-width = <2>;
+ snps,axi-max-burst-len = <4>;
+ status = "disabled";
+ };
+
uart0: serial@7030000000 {
compatible = "sophgo,sg2044-uart", "snps,dw-apb-uart";
reg = <0x70 0x30000000 0x0 0x1000>;
--
2.49.0