diff options
Diffstat (limited to 'SourceLevelDebugPkg/Library')
| -rw-r--r-- | SourceLevelDebugPkg/Library/DebugCommunicationLibUsb/DebugCommunicationLibUsb.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb/DebugCommunicationLibUsb.c b/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb/DebugCommunicationLibUsb.c index c08d45b787..54aaa71d75 100644 --- a/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb/DebugCommunicationLibUsb.c +++ b/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb/DebugCommunicationLibUsb.c @@ -674,10 +674,16 @@ InitializeUsbDebugHardware ( //
if (((MmioRead32((UINTN)&UsbDebugPortRegister->ControlStatus) & (USB_DEBUG_PORT_OWNER | USB_DEBUG_PORT_IN_USE))
!= (USB_DEBUG_PORT_OWNER | USB_DEBUG_PORT_IN_USE)) || (Handle->Initialized == USBDBG_RESET)) {
+ DEBUG ((
+ EFI_D_INFO,
+ "UsbDbg: Need to reset the host controller. ControlStatus = %08x\n",
+ MmioRead32((UINTN)&UsbDebugPortRegister->ControlStatus)
+ ));
//
// If the host controller is halted, then reset and restart it.
//
if ((MmioRead32((UINTN)UsbStatus) & BIT12) != 0) {
+ DEBUG ((EFI_D_INFO, "UsbDbg: Reset the host controller.\n"));
//
// reset the host controller.
//
@@ -712,7 +718,9 @@ InitializeUsbDebugHardware ( return RETURN_NOT_FOUND;
}
- if (Handle->Initialized != USBDBG_INIT_DONE) {
+ if (Handle->Initialized != USBDBG_INIT_DONE ||
+ (MmioRead32 ((UINTN) &UsbDebugPortRegister->ControlStatus) & USB_DEBUG_PORT_ENABLE) == 0) {
+ DEBUG ((EFI_D_INFO, "UsbDbg: Reset the debug port.\n"));
//
// Reset the debug port
//
|