Re: [PATCH] arm64: dts: mt8183: support coresight-cpu-debug for mt8183

[Matthias Brugger]

On 13/09/2021 11:27, Seiya Wang wrote:
> Add coresight-cpu-debug nodes to mt8183 for dumping
> EDPRSR, EDPCSR, EDCIDSR, EDVIDSR
> while kernel panic happens
>
> Signed-off-by: Seiya Wang <seiya.wang@xxxxxxxxxxxx>
> ---
>   arch/arm64/boot/dts/mediatek/mt8183.dtsi | 64 ++++++++++++++++++++++++++++++++
>   1 file changed, 64 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> index 409cf827970c..3ad4dd47518a 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> @@ -367,6 +367,70 @@
>   			reg = <0 0x0c530a80 0 0x50>;
>   		};
>   
> +		cpu_debug0: cpu-debug@d410000 {
> +			compatible = "arm,coresight-cpu-debug","arm,primecell";

Missing a space:  "arm,coresight-cpu-debug", "arm,primecell";

I suppose that's a copy-paste from the binding doc which is wrong. Other then 
that, things look fine.

Regards,
Matthias

> +			reg = <0x0 0xd410000 0x0 0x1000>;
> +			clocks = <&infracfg CLK_INFRA_DEBUGSYS>;
> +			clock-names = "apb_pclk";
> +			cpu = <&cpu0>;
> +		};
> +
> +		cpu_debug1: cpu-debug@d510000 {
> +			compatible = "arm,coresight-cpu-debug","arm,primecell";
> +			reg = <0x0 0xd510000 0x0 0x1000>;
> +			clocks = <&infracfg CLK_INFRA_DEBUGSYS>;
> +			clock-names = "apb_pclk";
> +			cpu = <&cpu1>;
> +		};
> +
> +		cpu_debug2: cpu-debug@d610000 {
> +			compatible = "arm,coresight-cpu-debug","arm,primecell";
> +			reg = <0x0 0xd610000 0x0 0x1000>;
> +			clocks = <&infracfg CLK_INFRA_DEBUGSYS>;
> +			clock-names = "apb_pclk";
> +			cpu = <&cpu2>;
> +		};
> +
> +		cpu_debug3: cpu-debug@d710000 {
> +			compatible = "arm,coresight-cpu-debug","arm,primecell";
> +			reg = <0x0 0xd710000 0x0 0x1000>;
> +			clocks = <&infracfg CLK_INFRA_DEBUGSYS>;
> +			clock-names = "apb_pclk";
> +			cpu = <&cpu3>;
> +		};
> +
> +		cpu_debug4: cpu-debug@d810000 {
> +			compatible = "arm,coresight-cpu-debug","arm,primecell";
> +			reg = <0x0 0xd810000 0x0 0x1000>;
> +			clocks = <&infracfg CLK_INFRA_DEBUGSYS>;
> +			clock-names = "apb_pclk";
> +			cpu = <&cpu4>;
> +		};
> +
> +		cpu_debug5: cpu-debug@d910000 {
> +			compatible = "arm,coresight-cpu-debug","arm,primecell";
> +			reg = <0x0 0xd910000 0x0 0x1000>;
> +			clocks = <&infracfg CLK_INFRA_DEBUGSYS>;
> +			clock-names = "apb_pclk";
> +			cpu = <&cpu5>;
> +		};
> +
> +		cpu_debug6: cpu-debug@da10000 {
> +			compatible = "arm,coresight-cpu-debug","arm,primecell";
> +			reg = <0x0 0xda10000 0x0 0x1000>;
> +			clocks = <&infracfg CLK_INFRA_DEBUGSYS>;
> +			clock-names = "apb_pclk";
> +			cpu = <&cpu6>;
> +		};
> +
> +		cpu_debug7: cpu-debug@db10000 {
> +			compatible = "arm,coresight-cpu-debug","arm,primecell";
> +			reg = <0x0 0xdb10000 0x0 0x1000>;
> +			clocks = <&infracfg CLK_INFRA_DEBUGSYS>;
> +			clock-names = "apb_pclk";
> +			cpu = <&cpu7>;
> +		};
> +
>   		topckgen: syscon@10000000 {
>   			compatible = "mediatek,mt8183-topckgen", "syscon";
>   			reg = <0 0x10000000 0 0x1000>;