add more comments for gEfiMdeModulePkgTokenSpaceGuid.PcdTurnOffUsbLegacySupport.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10032 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c
index aded0b3acb4d32ded9cb884ebb3a0ead36e6fa08..3161ede9498ff0340105f003c4664c7619f7b22d 100644 (file)
--- a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c
+++ b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c
@@ -1704,7 +1704,7 @@ EhcDriverBindingStart (
   }\r
 \r
   //\r
-  // Robustnesss improvement such as for UoL\r
+  // Robustnesss improvement such as for Duet platform\r
   // Default is not required.\r
   //\r
   if (FeaturePcdGet (PcdTurnOffUsbLegacySupport)) {\r

diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index d14cf8b56bfd96419175fa25bee7a0b88d07e442..51bafbb44e5dda36db08d241f796ff30115d0b41 100644 (file)
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -219,7 +219,8 @@
   gEfiMdeModulePkgTokenSpaceGuid.PcdPeiCoreImageLoaderSearchTeSectionFirst|TRUE|BOOLEAN|0x00010044\r
 \r
   ## If TRUE, force to switch off the support of legacy usb. So legacy usb device driver can not make use of SMI\r
-  #  interrupt to access usb device in the case of absence of usb stack.\r
+  #  interrupt to access usb device in the case of absence of usb stack. \r
+  #  DUET platform requires the token to be TRUE.\r
   gEfiMdeModulePkgTokenSpaceGuid.PcdTurnOffUsbLegacySupport|FALSE|BOOLEAN|0x00010047\r
 \r
   ## If TRUE, HiiImageProtocol will be installed.\r