Re: [PATCH 0/8] Enable EUD on Qualcomm sm8450 SoC

Krzysztof Kozlowski
2024-08-01T07:55:38Z

On 31/07/2024 13:13, Caleb Connolly wrote:
> Hi,
>
> On 31/07/2024 00:24, Elson Roy Serrao wrote:
>> The Embedded USB Debugger (EUD) is a mini High-Speed USB on-chip hub to
>> support the USB-based debug and trace capabilities on Qualcomm devices.
>> The current implementation lacks in below aspects that are needed for
>> proper EUD functionality.
>>
>> 1.) HS-Phy control: EUD being a HS hub needs HS-Phy support for it's
>> operation. Hence EUD module should enable/disable HS-phy
>> accordingly.
>>
>> 2.) Proper routing of USB role switch notifications: EUD hub is physically
>> present in between the USB connector and the USB controller. So the
>> usb role switch notifications originating from the connector should
>> route through EUD. EUD also relies on role switch notifications to
>> communicate with the USB, regarding EUD attach/detach events.
>>
>> This series aims at implementing the above aspects to enable EUD on
>> Qualcomm sm8450 SoC.
>
> Are there any plans to make this feature available for folks outside of
> Qualcomm / an NDA?
>
> There is an openOCD fork on CodeLinaro but it still requires some
> proprietary library which is only available to folks with a quicinc
> email as I understand it.

Are you saying that there is no fully open and available user-space
which is necessary to use EUD?

Best regards,
Krzysztof