diff options
| -rw-r--r-- | MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h | 1 | ||||
| -rw-r--r-- | MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf | 5 | ||||
| -rw-r--r-- | MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c | 2 | ||||
| -rw-r--r-- | MdeModulePkg/MdeModulePkg.dec | 5 |
4 files changed, 12 insertions, 1 deletions
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h b/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h index 4401675..c9a1209 100644 --- a/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h +++ b/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h @@ -28,6 +28,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent #include <Library/DebugLib.h>
#include <Library/ReportStatusCodeLib.h>
#include <Library/TimerLib.h>
+#include <Library/PcdLib.h>
#include <IndustryStandard/Pci.h>
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf b/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf index 18ef879..4ab986a 100644 --- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf +++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf @@ -45,6 +45,7 @@ [Packages]
MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
[LibraryClasses]
MemoryAllocationLib
@@ -56,6 +57,7 @@ DebugLib
ReportStatusCodeLib
TimerLib
+ PcdLib
[Guids]
gEfiEventExitBootServicesGuid ## SOMETIMES_CONSUMES ## Event
@@ -64,6 +66,9 @@ gEfiPciIoProtocolGuid ## TO_START
gEfiUsb2HcProtocolGuid ## BY_START
+[Pcd]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdDelayXhciHCReset ## CONSUMES
+
# [Event]
# EVENT_TYPE_PERIODIC_TIMER ## CONSUMES
#
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c b/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c index 40f2f1f..525942a 100644 --- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c +++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c @@ -864,7 +864,7 @@ XhcResetHC ( // Otherwise there may have the timeout case happened.
// The below is a workaround to solve such problem.
//
- gBS->Stall (XHC_1_MILLISECOND);
+ gBS->Stall (PcdGet16 (PcdDelayXhciHCReset));
Status = XhcWaitOpRegBit (Xhc, XHC_USBCMD_OFFSET, XHC_USBCMD_RESET, FALSE, Timeout);
if (!EFI_ERROR (Status)) {
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec index 085370e..dba6fbe 100644 --- a/MdeModulePkg/MdeModulePkg.dec +++ b/MdeModulePkg/MdeModulePkg.dec @@ -1154,6 +1154,11 @@ # @Prompt Enable large address image loading.
gEfiMdeModulePkgTokenSpaceGuid.PcdImageLargeAddressLoad|TRUE|BOOLEAN|0x30001059
+ ## Indicates time delay for XHCI registers access after it issues HCRST.
+ # Default is 2000, it represent delay is 2 ms.
+ # @Prompt Delay access XHCI register after it issues HCRST (us)
+ gEfiMdeModulePkgTokenSpaceGuid.PcdDelayXhciHCReset|2000|UINT16|0x30001060
+
[PcdsFixedAtBuild, PcdsPatchableInModule]
## Dynamic type PCD can be registered callback function for Pcd setting action.
# PcdMaxPeiPcdCallBackNumberPerPcdEntry indicates the maximum number of callback function
|