Re: [PATCH v2] riscv: dts: thead: set dma-noncoherent to soc bus

From: Guo Ren
Date: Tue Sep 12 2023 - 10:48:45 EST


On Tue, Sep 12, 2023 at 3:34 PM Jisheng Zhang <jszhang@xxxxxxxxxx> wrote:
>
> riscv select ARCH_DMA_DEFAULT_COHERENT by default, and th1520 isn't
> dma coherent, so set dma-noncoherent to reflect this fact.
>
> Signed-off-by: Jisheng Zhang <jszhang@xxxxxxxxxx>
> Tested-by: Drew Fustini <dfustini@xxxxxxxxxxxx>
> ---
>
> Since v1:
> - rebase on v6.6-rc1
> - collect Tested-by tag
>
> arch/riscv/boot/dts/thead/th1520.dtsi | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
> index ce708183b6f6..ff364709a6df 100644
> --- a/arch/riscv/boot/dts/thead/th1520.dtsi
> +++ b/arch/riscv/boot/dts/thead/th1520.dtsi
> @@ -139,6 +139,7 @@ soc {
> interrupt-parent = <&plic>;
> #address-cells = <2>;
> #size-cells = <2>;
> + dma-noncoherent;
Reviewed-by: Guo Ren <guoren@xxxxxxxxxx>

> ranges;
>
> plic: interrupt-controller@ffd8000000 {
> --
> 2.40.1
>


--
Best Regards
Guo Ren