linux-kernel - Re: [PATCH 0/4] Initial patch set for PURWA-IOT-EVK

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <d8642ba4-9a6f-4fb2-bd0c-419ead2630d3@oss.qualcomm.com>
Date: Tue, 23 Dec 2025 10:12:56 +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 0/4] Initial patch set for PURWA-IOT-EVK



On 12/22/2025 5:18 PM, Dmitry Baryshkov wrote:
> On Mon, Dec 22, 2025 at 02:03:25PM +0800, YijieYang wrote:
>> From: Yijie Yang <yijie.yang@....qualcomm.com>
>>
>> Introduce the device tree, DT bindings, and driver modifications required
>> to bring up the PURWA-IOT-EVK evaluation board.
>>
>> Purwa and Hamoa are IoT variants of x1p42100 and x1e80100, both based on
>> the IQ-X SoC series. Consequently, the two common files in this series are
>> prefixed with 'iq-x-iot' to reflect this relationship.
>>
>> PURWA-IOT-EVK shares almost the same hardware design with HAMOA-IOT-EVK,
>> except for differences in the BOM. As a result, most of the DTS can be
>> shared between them.
>>
>> The changes focus on two key hardware components: the PURWA-IOT-SOM and
>> the PURWA-IOT-EVK carrier board.
>>
>> Hardware delta between Hamoa and Purwa:
>> - Display: Purwa’s display uses a different number of clocks, and its
>>    frequency differs from Hamoa.
>> - GPU: Purwa requires a separate firmware compared to Hamoa.
> 
> Is it just a separate firmware, or does it use a different _GPU_?

It uses a different GPU.

> 
>> - USB0: Purwa uses a PS8833 retimer, while Hamoa uses an FSUSB42 as the
>>    SBU switch.
>>
> 

-- 
Best Regards,
Yijie