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

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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.

Kind regards,

~ someone eager for JTAG access

Elson Roy Serrao (8):
   dt-bindings: soc: qcom: eud: Add phy related bindings
   dt-bindings: soc: qcom: eud: Add usb role switch property
   dt-bindings: soc: qcom: eud: Add compatible for sm8450
   arm64: dts: qcom: sm8450: Add EUD node
   arm64: dts: qcom: Enable EUD on sm8450 hdk
   usb: misc: eud: Add High-Speed Phy control for EUD operations
   usb: misc: eud: Handle usb role switch notifications
   usb: misc: eud: Add compatible for sm8450

  .../bindings/soc/qcom/qcom,eud.yaml           |  17 +++
  arch/arm64/boot/dts/qcom/sm8450-hdk.dts       |  15 ++-
  arch/arm64/boot/dts/qcom/sm8450.dtsi          |  29 ++++
  drivers/usb/misc/qcom_eud.c                   | 125 +++++++++++++++---
  4 files changed, 164 insertions(+), 22 deletions(-)


--
// Caleb (they/them)




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