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path: root/drivers/usb/dwc3
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-rw-r--r--drivers/usb/dwc3/core.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index c8e0ef2c1db3..f3093b4e5307 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1399,8 +1399,17 @@ static void dwc3_check_params(struct dwc3 *dwc)
case USB_SPEED_LOW:
case USB_SPEED_FULL:
case USB_SPEED_HIGH:
+ break;
case USB_SPEED_SUPER:
+ if (hwparam_gen == DWC3_GHWPARAMS3_SSPHY_IFC_DIS)
+ dev_warn(dev, "UDC doesn't support Gen 1\n");
+ break;
case USB_SPEED_SUPER_PLUS:
+ if ((DWC3_IP_IS(DWC32) &&
+ hwparam_gen == DWC3_GHWPARAMS3_SSPHY_IFC_DIS) ||
+ (!DWC3_IP_IS(DWC32) &&
+ hwparam_gen != DWC3_GHWPARAMS3_SSPHY_IFC_GEN2))
+ dev_warn(dev, "UDC doesn't support SSP\n");
break;
default:
dev_err(dev, "invalid maximum_speed parameter %d\n",