linux-kernel - Re: [PATCH v6 2/5] arm64: dts: qcom: ipq5424: Add the IMEM node

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <iy72jfigw4kk7bp7d2lqgie4jf7ulphmtglznm4bohslno6vmt@b45v3razslbn>
Date: Sat, 31 Jan 2026 10:16:20 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@....qualcomm.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Rajendra Nayak <quic_rjendra@...cinc.com>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-watchdog@...r.kernel.org
Subject: Re: [PATCH v6 2/5] arm64: dts: qcom: ipq5424: Add the IMEM node

On Fri, Jan 30, 2026 at 04:14:31PM +0530, Kathiravan Thirumoorthy wrote:
> Add the IMEM node to the device tree to extract debugging information
> like system restart reason, which is populated via IMEM. Define the
> IMEM region to enable this functionality.
> 
> As described, overall IMEM region is 112KB but only initial 4KB is
> accessible by all masters in the SoC.
> 
> Signed-off-by: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@....qualcomm.com>
> ---
> Changes in v6:
> 	- move to mmio-sram and drop the Konrad's R-b tag
> Changes in v5:
> 	- No changes
> Changes in v4:
> 	- No changes
> Changes in v3:
> 	- Picked up the R-b tag
> Changes in v2:
> 	- Describe the entire IMEM region in the node
> 	- Explicitly call out that initial 4K only accessible by all
> 	  masters in the commit message
> ---
>  arch/arm64/boot/dts/qcom/ipq5424.dtsi | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>


-- 
With best wishes
Dmitry