diff options
| author | Bandaru, Purna Chandra Rao <Purna.Chandra.Rao.Bandaru@intel.com> | 2021-03-02 13:18:24 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2021-03-05 08:43:23 +0000 |
| commit | c5740f360636479fb91681093b1dee1cc366075c (patch) | |
| tree | b35606018b99da7a9ca2f7bd3698735b8cbe5ca8 /MdeModulePkg | |
| parent | ef91b07388e1c0a50c604e5350eeda98428ccea6 (diff) | |
| download | edk2-c5740f360636479fb91681093b1dee1cc366075c.tar.gz edk2-c5740f360636479fb91681093b1dee1cc366075c.tar.bz2 edk2-c5740f360636479fb91681093b1dee1cc366075c.zip | |
MdeModulePkg/UfsPassThruDxe: Improve Device initialization polling Loop
https://bugzilla.tianocore.org/show_bug.cgi?id=3217
Current Ufs Pass thru driver polls for 5us and return success even when
the timeout occurs.
There are cards that can take upto 600ms for Init and hence increased
the time out for fDeviceInit polling loop.
Signed-off-by: Bandaru <purna.chandra.rao.bandaru@intel.com>
Cc: Mateusz Albecki <mateusz.albecki@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Diffstat (limited to 'MdeModulePkg')
| -rw-r--r-- | MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.c | 17 | ||||
| -rw-r--r-- | MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.h | 3 |
2 files changed, 15 insertions, 5 deletions
diff --git a/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.c b/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.c index 9768c2e6fb..92ff958f16 100644 --- a/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.c +++ b/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.c @@ -1,6 +1,6 @@ /** @file
- Copyright (c) 2014 - 2019, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2014 - 2021, Intel Corporation. All rights reserved.<BR>
Copyright (c) Microsoft Corporation.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -749,7 +749,7 @@ UfsFinishDeviceInitialization ( {
EFI_STATUS Status;
UINT8 DeviceInitStatus;
- UINT8 Timeout;
+ UINT32 Timeout;
DeviceInitStatus = 0xFF;
@@ -761,7 +761,10 @@ UfsFinishDeviceInitialization ( return Status;
}
- Timeout = 5;
+ //
+ // There are cards that can take upto 600ms to clear fDeviceInit flag.
+ //
+ Timeout = UFS_INIT_COMPLETION_TIMEOUT;
do {
Status = UfsReadFlag (Private, UfsFlagDevInit, &DeviceInitStatus);
if (EFI_ERROR (Status)) {
@@ -771,7 +774,13 @@ UfsFinishDeviceInitialization ( Timeout--;
} while (DeviceInitStatus != 0 && Timeout != 0);
- return EFI_SUCCESS;
+ if (Timeout == 0) {
+ DEBUG ((DEBUG_ERROR, "UfsFinishDeviceInitialization DeviceInitStatus=%x EFI_TIMEOUT \n", DeviceInitStatus));
+ return EFI_TIMEOUT;
+ } else {
+ DEBUG ((DEBUG_INFO, "UfsFinishDeviceInitialization Timeout left=%x EFI_SUCCESS \n", Timeout));
+ return EFI_SUCCESS;
+ }
}
/**
diff --git a/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.h b/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.h index ef33250c89..79b86f7e6b 100644 --- a/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.h +++ b/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.h @@ -1,6 +1,6 @@ /** @file
- Copyright (c) 2014 - 2019, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2014 - 2021, Intel Corporation. All rights reserved.<BR>
Copyright (c) Microsoft Corporation.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -40,6 +40,7 @@ //
#define UFS_MAX_LUNS 12
#define UFS_WLUN_PREFIX 0xC1
+#define UFS_INIT_COMPLETION_TIMEOUT 600000
typedef struct {
UINT8 Lun[UFS_MAX_LUNS];
|