Update UHCI and ECHI drivers to both Stop and Reset the host controller at ExitBootSe...

[mirror_edk2.git] / MdeModulePkg / Bus / Pci / UhciDxe / Uhci.c

diff --git a/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c b/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c
index 92567f93e48d565bd626fbfa84b1bfd68fa8af40..beea8f32d651ec9b411fd8065d4d7fcb19325837 100644 (file)
--- a/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c
+++ b/MdeModulePkg/Bus/Pci/UhciDxe/Uhci.c
@@ -1588,7 +1588,11 @@ UhcExitBootService (
   //\r
   UhciStopHc (Uhc, UHC_GENERIC_TIMEOUT);\r
 \r
-  return;\r
+  //\r
+  // Reset the Host Controller\r
+  //\r
+  UhciSetRegBit (Uhc->PciIo, USBCMD_OFFSET, USBCMD_HCRESET);\r
+  gBS->Stall (UHC_ROOT_PORT_RECOVERY_STALL);\r
 }\r
 \r
 /**\r