On Fri, Aug 29, 2025 at 07:50:57PM +0530, Monish Chunara wrote:

On Thu, Aug 28, 2025 at 04:30:00PM +0300, Dmitry Baryshkov wrote:

quoted

On Thu, Aug 28, 2025 at 06:38:03PM +0530, Sushrut Shree Trivedi wrote:

quoted

On 8/27/2025 7:05 AM, Dmitry Baryshkov wrote:

quoted

On Tue, Aug 26, 2025 at 11:51:02PM +0530, Wasim Nazir wrote:

quoted

Enhance the Qualcomm Lemans EVK board file to support essential
peripherals and improve overall hardware capabilities, as
outlined below:
   - Enable GPI (Generic Peripheral Interface) DMA-0/1/2 and QUPv3-0/2
     controllers to facilitate DMA and peripheral communication.
   - Add support for PCIe-0/1, including required regulators and PHYs,
     to enable high-speed external device connectivity.
   - Integrate the TCA9534 I/O expander via I2C to provide 8 additional
     GPIO lines for extended I/O functionality.
   - Enable the USB0 controller in device mode to support USB peripheral
     operations.
   - Activate remoteproc subsystems for supported DSPs such as Audio DSP,
     Compute DSP-0/1 and Generic DSP-0/1, along with their corresponding
     firmware.
   - Configure nvmem-layout on the I2C EEPROM to store data for Ethernet
     and other consumers.
   - Enable the QCA8081 2.5G Ethernet PHY on port-0 and expose the
     Ethernet MAC address via nvmem for network configuration.
     It depends on CONFIG_QCA808X_PHY to use QCA8081 PHY.
   - Add support for the Iris video decoder, including the required
     firmware, to enable video decoding capabilities.
   - Enable SD-card slot on SDHC.

Co-developed-by: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
Signed-off-by: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
Co-developed-by: Sushrut Shree Trivedi <redacted>
Signed-off-by: Sushrut Shree Trivedi <redacted>
Co-developed-by: Nirmesh Kumar Singh <redacted>
Signed-off-by: Nirmesh Kumar Singh <redacted>
Co-developed-by: Krishna Kurapati <redacted>
Signed-off-by: Krishna Kurapati <redacted>
Co-developed-by: Mohd Ayaan Anwar <redacted>
Signed-off-by: Mohd Ayaan Anwar <redacted>
Co-developed-by: Dikshita Agarwal <redacted>
Signed-off-by: Dikshita Agarwal <redacted>
Co-developed-by: Monish Chunara <redacted>
Signed-off-by: Monish Chunara <redacted>
Co-developed-by: Vishal Kumar Pal <redacted>
Signed-off-by: Vishal Kumar Pal <redacted>
Signed-off-by: Wasim Nazir <redacted>
---
  arch/arm64/boot/dts/qcom/lemans-evk.dts | 387 ++++++++++++++++++++++++++++++++
  1 file changed, 387 insertions(+)

quoted

@@ -356,6 +720,29 @@ &ufs_mem_phy {
  	status = "okay";
  };
+&usb_0 {
+	status = "okay";
+};
+
+&usb_0_dwc3 {
+	dr_mode = "peripheral";

Is it actually peripheral-only?

Hi Dmitry,

HW supports OTG mode also, but for enabling OTG we need below mentioned
driver changes in dwc3-qcom.c :

Is it the USB-C port? If so, then you should likely be using some form
of the Type-C port manager (in software or in hardware). These platforms
usually use pmic-glink in order to handle USB-C.

Or is it micro-USB-OTG port?

Yes, it is a USB Type-C port for usb0 and we are using a 3rd party Type-C port
controller for the same. Will be enabling relevant dts node as part of OTG
enablement once driver changes are in place.

Which controller are you using? In the existing designs USB-C works
without extra patches for the DWC3 controller.

quoted

quoted

a) dwc3 core callback registration by dwc3 glue driver; this change is under
    review in upstream.
b) vbus supply enablement for host mode; this change is yet to be submitted
    to upstream.

Post the above mentioned driver changes, we are planning to enable OTG on
usb0.

-- 
With best wishes
Dmitry