linux-kernel - Re: [PATCH 4/4] arm64: dts: qcom: Add base PURWA-IOT-EVK board

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Message-ID: <woqdn6gvlkgux6nuixpcwmcqkl7siqajgwrvd4x5cuuw3nlrpp@vmq63mgudnoa>
Date: Mon, 22 Dec 2025 11:22:54 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: YijieYang <yijie.yang@....qualcomm.com>
Cc: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 4/4] arm64: dts: qcom: Add base PURWA-IOT-EVK board

On Mon, Dec 22, 2025 at 02:03:29PM +0800, YijieYang wrote:
> From: Yijie Yang <yijie.yang@....qualcomm.com>
> 
> The PURWA-IOT-EVK is an evaluation platform for IoT products, composed of
> the Purwa IoT SoM and a carrier board. Together, they form a complete
> embedded system capable of booting to UART.
> 
> PURWA-IOT-EVK uses the PS8833 as a retimer for USB0, unlike HAMOA-IOT-EVK.
> Meanwhile, USB0 bypasses the SBU selector FSUSB42. As a result, the glink
> topology differs from that of HAMOA-IOT-EVK.
> 
> Make the following peripherals on the carrier board enabled:
> - UART
> - On-board regulators
> - Regulators on the SOM
> - PMIC GLINK
> - USB0 through USB6 and their PHYs
> - Embedded USB (EUSB) repeaters
> - USB Type-C mux
> - PCIe6a and its PHY
> - PCIe4 and its PHY
> - Reserved memory regions
> - Pinctrl
> - NVMe
> - ADSP, CDSP
> - WLAN, Bluetooth (M.2 interface)
> - USB DisplayPorts
> - Graphic
> - Audio
> 
> Signed-off-by: Yijie Yang <yijie.yang@....qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/Makefile           |   1 +
>  arch/arm64/boot/dts/qcom/purwa-iot-evk.dts  | 100 ++++++++++++++++++++
>  arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi |  11 +++
>  3 files changed, 112 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/purwa-iot-evk.dts
>  create mode 100644 arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi
> 

> +
> +&gpu_zap_shader {
> +	firmware-name = "qcom/x1e80100/gen71500_zap.mbn";

This wasn't tested.

> +};
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry