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From: Haojian Zhuang <haojian.zhuang@linaro.org>
To: ryan.harkin@linaro.org, edk2-devel@lists.01.org,
	leif.lindholm@linaro.org, ard.biesheuvel@linaro.org
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Subject: [PATCH v3 07/10] MmcDxe: Fix uninitialized mediaid for SD
Date: Wed, 21 Sep 2016 23:02:24 +0800	[thread overview]
Message-ID: <1474470147-23156-8-git-send-email-haojian.zhuang@linaro.org> (raw)
In-Reply-To: <1474470147-23156-1-git-send-email-haojian.zhuang@linaro.org>

When SD card is used, mediaid is not initialized and used directly. So
fix it.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c b/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c
index a5915e4..f806bfc 100644
--- a/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c
+++ b/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c
@@ -57,6 +57,7 @@ typedef enum _EMMC_DEVICE_STATE {
 } EMMC_DEVICE_STATE;
 
 UINT32 mEmmcRcaCount = 0;
+UINT32 CurrentMediaId = 0;
 
 STATIC
 EFI_STATUS
@@ -231,6 +232,10 @@ EmmcIdentificationMode (
   // Set up media
   Media->BlockSize = EMMC_CARD_SIZE; // 512-byte support is mandatory for eMMC cards
   Media->MediaId = MmcHostInstance->CardInfo.CIDData.PSN;
+  if (CurrentMediaId > Media->MediaId)
+    Media->MediaId = ++CurrentMediaId;
+  else
+    CurrentMediaId = Media->MediaId;
   Media->ReadOnly = MmcHostInstance->CardInfo.CSDData.PERM_WRITE_PROTECT;
   Media->LogicalBlocksPerPhysicalBlock = 1;
   Media->IoAlign = 4;
@@ -344,7 +349,7 @@ InitializeSdMmcDevice (
   MmcHostInstance->BlockIo.Media->BlockSize    = BlockSize;
   MmcHostInstance->BlockIo.Media->ReadOnly     = MmcHost->IsReadOnly (MmcHost);
   MmcHostInstance->BlockIo.Media->MediaPresent = TRUE;
-  MmcHostInstance->BlockIo.Media->MediaId++;
+  MmcHostInstance->BlockIo.Media->MediaId      = ++CurrentMediaId;
 
   CmdArg = MmcHostInstance->CardInfo.RCA << 16;
   Status = MmcHost->SendCommand (MmcHost, MMC_CMD7, CmdArg);
-- 
2.7.4



  parent reply	other threads:[~2016-09-21 15:02 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-21 15:02 [PATCH v3 00/10] enhance mmc Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 01/10] MmcDxe: wait OCR busy bit free Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 02/10] MmcDxe: move ECSD into CardInfo structure Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 03/10] MmcDxe: add SPEC_VERS field in CSD structure Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 04/10] MmcDxe: add interface to change io width and speed Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 05/10] MmcDxe: declare ECSD structure Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 06/10] MmcDxe: set io bus width before reading EXTCSD Haojian Zhuang
2016-09-21 15:02 ` Haojian Zhuang [this message]
2016-09-21 15:02 ` [PATCH v3 08/10] MmcDxe: set iospeed and bus width in SD stack Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 09/10] MmcDxe: expand to support multiple blocks Haojian Zhuang
2016-09-21 15:02 ` [PATCH v3 10/10] PL180: update for indentifying SD Haojian Zhuang
2016-10-11 16:22 ` [PATCH v3 00/10] enhance mmc Ryan Harkin
2016-10-11 16:24   ` Ard Biesheuvel
2016-10-11 16:27     ` Ryan Harkin
2016-10-11 16:28       ` Ard Biesheuvel
2016-10-11 17:03         ` Ryan Harkin
2016-10-11 23:33           ` Haojian Zhuang
2016-10-12  5:32             ` Ryan Harkin

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