Re: [PATCH v6 5/5] arm64: dts: qcom: ipq5424: add support to get watchdog bootstatus from IMEM
From: Mukesh Ojha
Date: Mon Feb 02 2026 - 08:50:22 EST
On Sat, Jan 31, 2026 at 10:18:29AM +0200, Dmitry Baryshkov wrote:
> On Fri, Jan 30, 2026 at 04:14:34PM +0530, Kathiravan Thirumoorthy wrote:
> > Add the "sram" property to the watchdog device node to enable
> > retrieval of the system restart reason from IMEM, populated by XBL.
> > Parse this information in the watchdog driver and update the bootstatus
> > sysFS if the restart was triggered by a watchdog timeout.
> >
> > Signed-off-by: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@xxxxxxxxxxxxxxxx>
> > ---
> > Changes in v6:
> > - Update the 'sram' property to point to the SRAM region
> > Changes in v5:
> > - Rename the property 'qcom,imem' to 'sram'
> > Changes in v4:
> > - New patch
> > ---
> > arch/arm64/boot/dts/qcom/ipq5424.dtsi | 5 +++++
> > 1 file changed, 5 insertions(+)
> >
>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
I have a few more cookies (stored in a fixed IMEM location supported
downstream) that I want to add, and they are available on all Qualcomm
mobile SoCs. Should it be added under SMEM now?
>
>
> --
> With best wishes
> Dmitry
--
-Mukesh Ojha