Enable SuperSpeedPlus by programming the DCFG.speed and after
enumerating, set gadget->speed appropriately.
Signed-off-by: John Youn <johny...@synopsys.com>
---
drivers/usb/dwc3/gadget.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 73db723..5bbdf5d 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1629,6 +1629,9 @@ static int dwc3_gadget_start(struct usb_gadget *g,
case USB_SPEED_HIGH:
reg |= DWC3_DSTS_HIGHSPEED;
break;
+ case USB_SPEED_SUPER_PLUS:
+ reg |= DWC3_DSTS_SUPERSPEED_PLUS;
+ break;
case USB_SPEED_SUPER: /* FALLTHROUGH */
case USB_SPEED_UNKNOWN: /* FALTHROUGH */
default:
@@ -2337,6 +2340,11 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3
*dwc)
dwc3_update_ram_clk_sel(dwc, speed);
switch (speed) {
+ case DWC3_DCFG_SUPERSPEED_PLUS:
+ dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512);
+ dwc->gadget.ep0->maxpacket = 512;
+ dwc->gadget.speed = USB_SPEED_SUPER_PLUS;
+ break;
case DWC3_DCFG_SUPERSPEED:
/*
* WORKAROUND: DWC3 revisions <1.90a have an issue which
--
2.6.3
--
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