diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index b440b2b2987286d485596c40e368735742f120f8..aefb59d6db8fdd43068c064581556aacdda7cb37 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -374,6 +374,15 @@ static void dwc3_phy_setup(struct dwc3 *dwc) reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0)); + /* + * Above 1.94a, it is recommended to set DWC3_GUSB3PIPECTL_SUSPHY + * to '0' during coreConsultant configuration. So default value + * will be '0' when the core is reset. Application needs to set it + * to '1' after the core initialization is completed. + */ + if (dwc->revision > DWC3_REVISION_194A) + reg |= DWC3_GUSB3PIPECTL_SUSPHY; + if (dwc->u2ss_inp3_quirk) reg |= DWC3_GUSB3PIPECTL_U2SSINP3OK; @@ -395,6 +404,21 @@ static void dwc3_phy_setup(struct dwc3 *dwc) dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg); mdelay(100); + + reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); + + /* + * Above 1.94a, it is recommended to set DWC3_GUSB2PHYCFG_SUSPHY to + * '0' during coreConsultant configuration. So default value will + * be '0' when the core is reset. Application needs to set it to + * '1' after the core initialization is completed. + */ + if (dwc->revision > DWC3_REVISION_194A) + reg |= DWC3_GUSB2PHYCFG_SUSPHY; + + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); + + mdelay(100); } /**