update(port/dwc2/usb_dc_dwc2): clear crst bit because some mcu cannot…

… be self-clearing, refs:#276
cherry-embedded · Nov 25, 2024 · 1a39169 · 1a39169
1 parent 82a0d24
commit 1a39169
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/port/dwc2/usb_dc_dwc2.c b/port/dwc2/usb_dc_dwc2.c
@@ -136,10 +136,12 @@ static inline int dwc2_reset(uint8_t busid)
 
     do {
         if (++count > 200000U) {
-            return -1;
+            break;
         }
     } while ((USB_OTG_GLB->GRSTCTL & USB_OTG_GRSTCTL_CSRST) == USB_OTG_GRSTCTL_CSRST);
 
+    USB_OTG_GLB->GRSTCTL &= ~USB_OTG_GRSTCTL_CSRST;
+
     return 0;
 }