On Thu, Aug 28, 2025 at 06:38:03PM +0530, Sushrut Shree Trivedi wrote:
>
> On 8/27/2025 7:05 AM, Dmitry Baryshkov wrote:
> > On Tue, Aug 26, 2025 at 11:51:02PM +0530, Wasim Nazir wrote:
> > > 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@xxxxxxxxxxxxxxxx>
> > > Signed-off-by: Viken Dadhaniya <viken.dadhaniya@xxxxxxxxxxxxxxxx>
> > > Co-developed-by: Sushrut Shree Trivedi <quic_sushruts@xxxxxxxxxxx>
> > > Signed-off-by: Sushrut Shree Trivedi <quic_sushruts@xxxxxxxxxxx>
> > > Co-developed-by: Nirmesh Kumar Singh <quic_nkumarsi@xxxxxxxxxxx>
> > > Signed-off-by: Nirmesh Kumar Singh <quic_nkumarsi@xxxxxxxxxxx>
> > > Co-developed-by: Krishna Kurapati <krishna.kurapati@xxxxxxxxxxxxxxxx>
> > > Signed-off-by: Krishna Kurapati <krishna.kurapati@xxxxxxxxxxxxxxxx>
> > > Co-developed-by: Mohd Ayaan Anwar <quic_mohdayaa@xxxxxxxxxxx>
> > > Signed-off-by: Mohd Ayaan Anwar <quic_mohdayaa@xxxxxxxxxxx>
> > > Co-developed-by: Dikshita Agarwal <quic_dikshita@xxxxxxxxxxx>
> > > Signed-off-by: Dikshita Agarwal <quic_dikshita@xxxxxxxxxxx>
> > > Co-developed-by: Monish Chunara <quic_mchunara@xxxxxxxxxxx>
> > > Signed-off-by: Monish Chunara <quic_mchunara@xxxxxxxxxxx>
> > > Co-developed-by: Vishal Kumar Pal <quic_vispal@xxxxxxxxxxx>
> > > Signed-off-by: Vishal Kumar Pal <quic_vispal@xxxxxxxxxxx>
> > > Signed-off-by: Wasim Nazir <wasim.nazir@xxxxxxxxxxxxxxxx>
> > > ---
> > > arch/arm64/boot/dts/qcom/lemans-evk.dts | 387 ++++++++++++++++++++++++++++++++
> > > 1 file changed, 387 insertions(+)
> > >
> >
> > > @@ -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
>
> > > +};
> > > +
--
With best wishes
Dmitry
