linux-kernel - Re: [PATCH v3 2/2] arm64: dts: qcom: qcs6490: Introduce Radxa Dragon Q6A

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Message-ID: <33vm6uzxqbs5bukswpzdkrn3ronl7mp2q5d3j772t7lqcnvqvg@5or7jxglcynf>
Date: Mon, 15 Sep 2025 13:10:44 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Xilin Wu <sophon@...xa.com>
Cc: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/2] arm64: dts: qcom: qcs6490: Introduce Radxa Dragon
 Q6A

On Mon, Sep 15, 2025 at 09:31:44AM +0800, Xilin Wu wrote:
> Radxa Dragon Q6A is a single board computer, based on the Qualcomm
> QCS6490 platform.
> 
> Features enabled and working:
> 
> - Three USB-A 2.0 ports
> - RTL8111K Ethernet connected to PCIe0
> - eMMC module
> - SD card
> - M.2 M-Key 2230 PCIe 3.0 x2
> - Headphone jack
> - Onboard thermal sensors
> - QSPI controller for updating boot firmware
> - ADSP remoteproc (Type-C and charging features disabled in firmware)
> - CDSP remoteproc (for AI applications using QNN)
> - Venus video encode and decode accelerator
> 
> Signed-off-by: Xilin Wu <sophon@...xa.com>
> ---
>  arch/arm64/boot/dts/qcom/Makefile                  |   1 +
>  .../boot/dts/qcom/qcs6490-radxa-dragon-q6a.dts     | 961 +++++++++++++++++++++
>  2 files changed, 962 insertions(+)
> 

> +
> +&gpu_zap_shader {
> +	firmware-name = "qcom/qcs6490/a660_zap.mbn";

Is the device fused to reject standard qcs6490 firmware? If not, can we
point it to the existing files (maybe except the ADSP)? Anyway, could
you please submit the required set of files to the linux-firmware repo?

> +
> +&usb_2 {
> +	dr_mode = "host";

As Konrad has asked, please describe the onboard hub and the USB ports.
This will ensure that corresponding ports are correctly marked as
hotplug in sysfs.

> +
> +	status = "okay";
> +};
> +
> +&usb_2_hsphy {
> +	status = "okay";
> +
> +	vdda-pll-supply = <&vreg_l10c_0p88>;
> +	vdda33-supply = <&vreg_l2b_3p072>;
> +	vdda18-supply = <&vreg_l1c_1p8>;
> +};
> +
> +&venus {
> +	status = "okay";

No separate firmware?


-- 
With best wishes
Dmitry