Hello Thinh, On Fri, 17 Nov 2023 01:55:30 +0000 Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx> wrote: > > How many ports do you use? Can you try this: > > > > diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c > > index 0328c86ef806..9921c2737829 100644 > > --- a/drivers/usb/dwc3/core.c > > +++ b/drivers/usb/dwc3/core.c > > @@ -296,23 +296,28 @@ int dwc3_core_soft_reset(struct dwc3 *dwc) > > if (dwc->dr_mode == USB_DR_MODE_HOST) { > > u32 usb3_port; > > u32 usb2_port; > > + int i; > > > > - usb3_port = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0)); > > - usb3_port |= DWC3_GUSB3PIPECTL_PHYSOFTRST; > > - dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), usb3_port); > > + for (i = 0; i < 16; i++) { > > + usb3_port = dwc3_readl(dwc->regs, > > DWC3_GUSB3PIPECTL(i)); > > + usb3_port |= DWC3_GUSB3PIPECTL_PHYSOFTRST; > > + dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(i), > > usb3_port); > > - usb2_port = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); > > - usb2_port |= DWC3_GUSB2PHYCFG_PHYSOFTRST; > > - dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), usb2_port); > > + usb2_port = dwc3_readl(dwc->regs, > > DWC3_GUSB2PHYCFG(i)); > > + usb2_port |= DWC3_GUSB2PHYCFG_PHYSOFTRST; > > + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(i), > > usb2_port); > > + } > > > > /* Small delay for phy reset assertion */ > > usleep_range(1000, 2000); > > > > - usb3_port &= ~DWC3_GUSB3PIPECTL_PHYSOFTRST; > > - dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), usb3_port); > > + for (i = 0; i < 16; i++) { > > + usb3_port &= ~DWC3_GUSB3PIPECTL_PHYSOFTRST; > > + dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(i), > > usb3_port); > > - usb2_port &= ~DWC3_GUSB2PHYCFG_PHYSOFTRST; > > - dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), usb2_port); > > + usb2_port &= ~DWC3_GUSB2PHYCFG_PHYSOFTRST; > > + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(i), > > usb2_port); > > + } > > > > /* Wait for clock synchronization */ > > msleep(50); > > -- Still not working on my side. Regards, -- Köry Maincent, Bootlin Embedded Linux and kernel engineering https://bootlin.com