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

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?

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.

- Sushrut

quoted

quoted

+};
+

-- 
With best wishes
Dmitry