diff options
Diffstat (limited to 'drivers/usb/dwc3/core.c')
| -rw-r--r-- | drivers/usb/dwc3/core.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 25e424e40462..d6d3fa0fa528 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -704,6 +704,17 @@ static int dwc3_core_init(struct dwc3 *dwc) break; } + /* + * ENDXFER polling is available on version 3.10a and later of + * the DWC_usb3 controller. It is NOT available in the + * DWC_usb31 controller. + */ + if (!dwc3_is_usb31(dwc) && dwc->revision >= DWC3_REVISION_310A) { + reg = dwc3_readl(dwc->regs, DWC3_GUCTL2); + reg |= DWC3_GUCTL2_RST_ACTBITLATER; + dwc3_writel(dwc->regs, DWC3_GUCTL2, reg); + } + return 0; err4: |