Re: [PATCH v2 2/6] arm64: dts: qcom: ipq8074: Add the IMEM node

From: Krzysztof Kozlowski
Date: Tue Jul 08 2025 - 02:47:30 EST


On 08/07/2025 07:39, 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 24KB but only initial 4KB is
> accessible by all masters in the SoC.
>
> Signed-off-by: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@xxxxxxxxxxxxxxxx>
> ---
> Changes in v2:
> - Rounded off the size to 0x6000 (Konrad)
> ---
> arch/arm64/boot/dts/qcom/ipq8074.dtsi | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
> index fffb47ec244899cf45984adbe8c4f9820bef5c5f..2ba07a02c222958b924c5bc178ac67f955088f7a 100644
> --- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi
> +++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
> @@ -625,6 +625,15 @@ qpic_nand: nand-controller@79b0000 {
> status = "disabled";
> };
>
> + sram@8600000 {
> + compatible = "qcom,ipq8074-imem", "syscon", "simple-mfd";


It is still not simple-mfd. You should post complete node with children
or do not make it a simple-mfd.

Best regards,
Krzysztof