linux-kernel - Re: [PATCH v9 2/3] arm64: dts: qcom: Add HAMOA-IOT-SOM platform

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Message-ID: <3f563a3f-08ac-449c-9d55-2537f67cea7b@oss.qualcomm.com>
Date: Fri, 5 Sep 2025 14:02:24 +0800
From: Yijie Yang <yijie.yang@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.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,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: Re: [PATCH v9 2/3] arm64: dts: qcom: Add HAMOA-IOT-SOM platform



On 2025-09-04 21:52, Dmitry Baryshkov wrote:
> On Thu, Sep 04, 2025 at 03:48:33PM +0800, Yijie Yang wrote:
>> The HAMOA-IOT-SOM is a compact computing module that integrates a System
>> on Chip (SoC) — specifically the x1e80100 — along with essential
>> components optimized for IoT applications. It is designed to be mounted on
>> carrier boards, enabling the development of complete embedded systems.
>>
>> This change enables the following components:
> 
> Documentation/process/submitting-patches.rst, "[This patch] makes xyzzy
> do frot".

Will update.

> 
>> - Regulators on the SOM
>> - Reserved memory regions
>> - PCIe6a and its PHY
>> - PCIe4 and its PHY
>> - USB0 through USB6 and their PHYs
>> - ADSP, CDSP
>> - WLAN, Bluetooth (M.2 interface)
> 
> No, you don't. WiFi and BT are not present on the SoM.

Will update.

> 
>>
>> Written in collaboration with Yingying Tang (PCIe4 and WLAN)
>> <quic_yintang@...cinc.com>.
> 
> Co-developed-by, Signed-off-by.
> 
>>
>> Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
>> Signed-off-by: Yijie Yang <yijie.yang@....qualcomm.com>
>> ---
>>   arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi | 609 ++++++++++++++++++++++++++++
>>   1 file changed, 609 insertions(+)
> 
>> +
>> +&usb_1_ss0 {
>> +	status = "okay";
>> +};
>> +
>> +&usb_1_ss0_dwc3 {
>> +	dr_mode = "otg";
>> +	usb-role-switch;
> 
> Please check with Johan or any other X1E8 developers and make this into
> a platform default.

Sure.

> 
>> +};
>> +
>> +&usb_1_ss0_hsphy {
>> +	vdd-supply = <&vreg_l3j_0p8>;
>> +	vdda12-supply = <&vreg_l2j_1p2>;
>> +
>> +	status = "okay";
>> +};
>> +
>> +&usb_1_ss0_qmpphy {
>> +	vdda-phy-supply = <&vreg_l2j_1p2>;
>> +	vdda-pll-supply = <&vreg_l1j_0p8>;
>> +
>> +	status = "okay";
>> +};
>> +
>> +&usb_1_ss1 {
>> +	status = "okay";
>> +};
>> +
>> +&usb_1_ss1_dwc3 {
>> +	dr_mode = "otg";
>> +	usb-role-switch;
>> +};
>> +
> 
> The same.
> 

-- 
Best Regards,
Yijie