linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: sc7180: Add Coresight support

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Message-ID: <8cd2aec8523775a36fd0be9ec5c8858f@codeaurora.org>
Date:   Thu, 09 Apr 2020 13:24:07 +0530
From:   Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        devicetree@...r.kernel.org, Rajendra Nayak <rnayak@...eaurora.org>,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        devicetree-owner@...r.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: qcom: sc7180: Add Coresight support

On 2020-04-09 12:49, Stephen Boyd wrote:
> Quoting Sai Prakash Ranjan (2020-03-20 00:44:29)
>> Add coresight components found on Qualcomm SC7180 SoC.
>> 
>> Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
>> ---
>>  arch/arm64/boot/dts/qcom/sc7180.dtsi | 507 
>> +++++++++++++++++++++++++++
>>  1 file changed, 507 insertions(+)
>> 
>> diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi 
>> b/arch/arm64/boot/dts/qcom/sc7180.dtsi
>> index 998f101ad623..d8fe960d6ace 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
>> @@ -1294,6 +1294,513 @@
>>                         };
>>                 };
>> 
>> +               stm@...2000 {
>> +                       compatible = "arm,coresight-stm", 
>> "arm,primecell";
> 
> Does this SoC have a cpu-debug coresight component? Specifically
> wondering if there's an 'arm,coresight-cpu-debug' compatible node that
> can be added to this dtsi file.

There is no coresight cpu-debug component on SC7180 and SDM845.

  -Sai

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