linux-kernel - Re: [PATCH 3/4] riscv: dts: sophgo: add reset dt node for cv1800b

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Date:   Mon, 13 Nov 2023 14:32:24 +0000
From:   Yixun Lan <dlan@...too.org>
To:     Jisheng Zhang <jszhang@...nel.org>
Cc:     Philipp Zabel <p.zabel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Chao Wei <chao.wei@...hgo.com>,
        Chen Wang <unicorn_wang@...look.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org
Subject: Re: [PATCH 3/4] riscv: dts: sophgo: add reset dt node for cv1800b

Hi Jisheng:

On 08:55 Mon 13 Nov     , Jisheng Zhang wrote:
> Add the reset device tree node to cv1800b SoC.
> 
> Signed-off-by: Jisheng Zhang <jszhang@...nel.org>
> ---
>  arch/riscv/boot/dts/sophgo/cv1800b.dtsi | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
> index df40e87ee063..4032419486be 100644
> --- a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
> +++ b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
> @@ -54,6 +54,12 @@ soc {
>  		dma-noncoherent;
>  		ranges;
>  
> +		rst: reset-controller@...3000 {
> +			compatible = "sophgo,cv1800b-reset";
> +			reg = <0x03003000 0x1000>;
                                          ~~~~~~~
			        it should be 0x28

while please also note the 0x24 == SOFT_CPUAC_RSTN, does not compatible
with the reset-simple driver, but as it's not implemented nor used in this driver,
so we should be fine with this?

> +			#reset-cells = <1>;
> +		};
> +
>  		uart0: serial@...0000 {
>  			compatible = "snps,dw-apb-uart";
>  			reg = <0x04140000 0x100>;
> -- 
> 2.42.0
> 

-- 
Yixun Lan (dlan)
Gentoo Linux Developer
GPG Key ID AABEFD55