From: vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Tue, 24 Jun 2008 08:13:58 +0000 (+0000)
Subject: [Description]:
X-Git-Tag: edk2-stable201903~20851
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=7e388f859fee079f0c5eb035354b1f1bb79ea2fc

[Description]:
 The Usb1.1 flash disk will hang for Bootable Image Support Test -> Bloack IO protocol Test -> Reset_Func.
[Solution]:
 Add a stall 20ms after set address when port reset for Usb hub.
[Impaction]:
 UsbBusDxe.
[Reference Info]:
 EDK tracker 1120 - USB flash disk hang or fail in the new SCT blockIo test.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5365 6f19259b-4bc3-4df7-8a09-765794883524
---

diff --git a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBus.c b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBus.c
index 332871a685..5c4d4025eb 100644
--- a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBus.c
+++ b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBus.c
@@ -840,7 +840,8 @@ UsbIoPortReset (
   Address       = Dev->Address;
   Dev->Address  = 0;
   Status        = UsbSetAddress (Dev, Address);
-
+  Dev->Address  = Address;
+  
   if (EFI_ERROR (Status)) {
     DEBUG (( EFI_D_ERROR, "UsbIoPortReset: failed to set address for device %d - %r\n",
                 Address, Status));
@@ -848,8 +849,10 @@ UsbIoPortReset (
     goto ON_EXIT;
   }
 
-  Dev->Address  = Address;
+  gBS->Stall (USB_SET_DEVICE_ADDRESS_STALL);
 
+  DEBUG (( EFI_D_INFO, "UsbIoPortReset: device is now ADDRESSED at %d\n", Address));
+  
   //
   // Reset the current active configure, after this device
   // is in CONFIGURED state.