[edk2-devel] [PATCHv2 1/4] MdeModulePkg/SdMmcPciHcDxe: Fix DAT lane SW reset

[Albecki, Mateusz]

Driver used to reset the DAT lane on a current error which
is not required according to SD specification(it's not going
to help). This patch will reset the DAT lane only on DAT
lane specific errors.

Cc: Hao A Wu <hao.a.wu at intel.com>
Cc: Marcin Wojtas <mw at semihalf.com>
Cc: Zhichao Gao <zhichao.gao at intel.com>
Cc: Liming Gao <liming.gao at intel.com>

Signed-off-by: Mateusz Albecki <mateusz.albecki at intel.com>
---
 MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c
index e7f2fac69b..b1f316d444 100644
--- a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c
+++ b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c
@@ -7,7 +7,7 @@
   It would expose EFI_SD_MMC_PASS_THRU_PROTOCOL for upper layer use.
 
   Copyright (c) 2018-2019, NVIDIA CORPORATION. All rights reserved.
-  Copyright (c) 2015 - 2019, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2015 - 2020, Intel Corporation. All rights reserved.<BR>
   SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
@@ -2229,7 +2229,7 @@ SdMmcCheckTrbResult (
     if ((IntStatus & 0x0F) != 0) {
       SwReset |= BIT1;
     }
-    if ((IntStatus & 0xF0) != 0) {
+    if ((IntStatus & 0x70) != 0) {
       SwReset |= BIT2;
     }
 
-- 
2.14.1.windows.1

--------------------------------------------------------------------

Intel Technology Poland sp. z o.o.
ul. Slowackiego 173 | 80-298 Gdansk | Sad Rejonowy Gdansk Polnoc | VII Wydzial Gospodarczy Krajowego Rejestru Sadowego - KRS 101882 | NIP 957-07-52-316 | Kapital zakladowy 200.000 PLN.

Ta wiadomosc wraz z zalacznikami jest przeznaczona dla okreslonego adresata i moze zawierac informacje poufne. W razie przypadkowego otrzymania tej wiadomosci, prosimy o powiadomienie nadawcy oraz trwale jej usuniecie; jakiekolwiek
przegladanie lub rozpowszechnianie jest zabronione.
This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). If you are not the intended recipient, please contact the sender and delete all copies; any review or distribution by
others is strictly prohibited.


-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.

View/Reply Online (#53217): https://edk2.groups.io/g/devel/message/53217
Mute This Topic: https://groups.io/mt/69691993/1813853
Group Owner: devel+owner at edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub  [edk2-devel-archive at redhat.com]
-=-=-=-=-=-=-=-=-=-=-=-