linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: sa8775p: Add TCSR halt register space

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Message-ID: <20240705112957248-0700.eberman@hu-eberman-lv.qualcomm.com>
Date: Fri, 5 Jul 2024 11:30:35 -0700
From: Elliot Berman <quic_eberman@...cinc.com>
To: Mukesh Ojha <quic_mojha@...cinc.com>
CC: <lee@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] arm64: dts: qcom: sa8775p: Add TCSR halt register
 space

On Fri, Jul 05, 2024 at 09:02:52PM +0530, Mukesh Ojha wrote:
> Enable download mode for sa8775p which can help collect
> ramdump for this SoC.
> 
> Signed-off-by: Mukesh Ojha <quic_mojha@...cinc.com>

Reviewed-by: Elliot Berman <quic_eberman@...cinc.com>

> ---
>  arch/arm64/boot/dts/qcom/sa8775p.dtsi | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> index 23f1b2e5e624..a46d00b1ddda 100644
> --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> @@ -221,6 +221,7 @@ eud_in: endpoint {
>  	firmware {
>  		scm {
>  			compatible = "qcom,scm-sa8775p", "qcom,scm";
> +			qcom,dload-mode = <&tcsr 0x13000>;
>  			memory-region = <&tz_ffi_mem>;
>  		};
>  	};
> @@ -2824,6 +2825,11 @@ tcsr_mutex: hwlock@...0000 {
>  			#hwlock-cells = <1>;
>  		};
>  
> +		tcsr: syscon@...0000 {
> +			compatible = "qcom,sa8775p-tcsr", "syscon";
> +			reg = <0x0 0x1fc0000 0x0 0x30000>;
> +		};
> +
>  		gpucc: clock-controller@...0000 {
>  			compatible = "qcom,sa8775p-gpucc";
>  			reg = <0x0 0x03d90000 0x0 0xa000>;
> -- 
> 2.34.1
> 
>