Re: [PATCH 5/5] riscv: dts: sifive: fu740: add PDMA device node

[Frank Li]

On Sat, Feb 21, 2026 at 03:43:57AM +0800, Max Hsu wrote:
> The FU740 SoC includes a 4-channel Platform DMA (PDMA) controller.
> Add the device node to enable DMA support.
>
> Signed-off-by: Max Hsu <max.hsu@xxxxxxxxxx>
> ---
>  arch/riscv/boot/dts/sifive/fu740-c000.dtsi | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/sifive/fu740-c000.dtsi b/arch/riscv/boot/dts/sifive/fu740-c000.dtsi
> index 6150f3397bff..30d0d6837c57 100644
> --- a/arch/riscv/boot/dts/sifive/fu740-c000.dtsi
> +++ b/arch/riscv/boot/dts/sifive/fu740-c000.dtsi
> @@ -329,6 +329,15 @@ gpio: gpio@10060000 {
>  			clocks = <&prci FU740_PRCI_CLK_PCLK>;
>  			status = "disabled";
>  		};
> +		dma: dma-controller@3000000 {

not sure sifive, generally require orderby hex address, and need empty
line between child node.

Frank
> +			compatible = "sifive,fu740-c000-pdma", "sifive,pdma0";
> +			reg = <0x0 0x3000000 0x0 0x100000>;
> +			interrupt-parent = <&plic0>;
> +			interrupts = <11>, <12>, <13>, <14>, <15>, <16>, <17>, <18>;
> +			dma-channels = <4>;
> +			clocks = <&prci FU740_PRCI_CLK_PCLK>;
> +			#dma-cells = <1>;
> +		};
>  		pcie@e00000000 {
>  			compatible = "sifive,fu740-pcie";
>  			#address-cells = <3>;
>
> --
> 2.43.0
>