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

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Message-ID: <a8784c60-6551-4312-881c-c36523731862@oss.qualcomm.com>
Date: Tue, 23 Dec 2025 10:02:54 +0800
From: Yijie Yang <yijie.yang@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....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 12/22/2025 5:22 PM, Dmitry Baryshkov wrote:
> 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.

It should be qcom/x1p42100/gen71500_zap.mbn. This has been tested locally.

> 
>> +};
>> -- 
>> 2.34.1
>>
> 

-- 
Best Regards,
Yijie