linux-kernel - Re: [PATCH v3] remoteproc: qcom_q6v5: Assign mpss region to Q6 before MBA boot

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Message-ID: <160037424219.4188128.6572428223281418741@swboyd.mtv.corp.google.com>
Date:   Thu, 17 Sep 2020 13:24:02 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Sibi Sankar <sibis@...eaurora.org>, bjorn.andersson@...aro.org
Cc:     agross@...nel.org, linux-arm-msm@...r.kernel.org,
        linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org,
        ohad@...ery.com, evgreen@...omium.org,
        Sibi Sankar <sibis@...eaurora.org>
Subject: Re: [PATCH v3] remoteproc: qcom_q6v5: Assign mpss region to Q6 before MBA boot

Quoting Sibi Sankar (2020-09-17 10:58:40)
> On secure devices which support warm reset, the MBA firmware requires
> access to the modem region to clear them out. Hence provide Q6 access
> to this region before MBA boot. This will be a nop during a modem SSR.
> 
> Signed-off-by: Sibi Sankar <sibis@...eaurora.org>
> ---

Reviewed-by: Stephen Boyd <swboyd@...omium.org>