From: tien.hock.loh@intel.com
To: edk2-devel@lists.01.org, thloh85@gmail.com
Subject: [PATCH 1/1] SD : Continue setting up sd even if SD_HIGH_SPEED is not supported
Date: Thu, 25 Oct 2018 14:56:44 +0800 [thread overview]
Message-ID: <1540450604-25982-1-git-send-email-tien.hock.loh@intel.com> (raw)
In-Reply-To: <tien.hock.loh@intel.com>
From: "Loh, Tien Hock" <tien.hock.loh@intel.com>
If SD doesn't support SD_HIGH_SPEED, function should still continue to
setup SD to go into 4 bits more if it is supported.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Loh Tien Hock <tien.hock.loh@intel.com>
---
EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c b/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c
index f661a0c..8fd5c31 100755
--- a/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c
+++ b/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c
@@ -474,18 +474,17 @@ InitializeSdMmcDevice (
if (!(Buffer[3] & SD_HIGH_SPEED_SUPPORTED)) {
DEBUG ((DEBUG_ERROR, "%a : High Speed not supported by Card %r\n", __FUNCTION__, Status));
- return Status;
}
+ else {
+ Speed = SD_HIGH_SPEED;
- Speed = SD_HIGH_SPEED;
-
- /* SD Switch, Mode:1, Group:0, Value:1 */
- CmdArg = CreateSwitchCmdArgument(1, 0, 1);
- Status = MmcHost->SendCommand (MmcHost, MMC_CMD6, CmdArg);
- if (EFI_ERROR (Status)) {
- DEBUG ((DEBUG_ERROR, "%a (MMC_CMD6): Error and Status = %r\n", __FUNCTION__, Status));
- return Status;
- } else {
+ /* SD Switch, Mode:1, Group:0, Value:1 */
+ CmdArg = CreateSwitchCmdArgument(1, 0, 1);
+ Status = MmcHost->SendCommand (MmcHost, MMC_CMD6, CmdArg);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "%a (MMC_CMD6): Error and Status = %r\n", __FUNCTION__, Status));
+ return Status;
+ } else {
Status = MmcHost->ReadBlockData (MmcHost, 0, SWITCH_CMD_DATA_LENGTH, Buffer);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a (MMC_CMD6): ReadBlockData Error and Status = %r\n", __FUNCTION__, Status));
@@ -495,6 +494,7 @@ InitializeSdMmcDevice (
if ((Buffer[4] & SWITCH_CMD_SUCCESS_MASK) != 0x01000000) {
DEBUG((DEBUG_ERROR, "Problem switching SD card into high-speed mode\n"));
return Status;
+ }
}
}
}
--
2.2.2
next reply other threads:[~2018-10-25 6:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-25 6:56 tien.hock.loh [this message]
-- strict thread matches above, loose matches on Subject: below --
2019-02-22 7:58 [PATCH 1/1] SD : Continue setting up sd even if SD_HIGH_SPEED is not supported tien.hock.loh
2019-03-15 3:27 ` Loh, Tien Hock
2019-03-15 11:27 ` Ard Biesheuvel
2019-03-18 1:53 ` Loh, Tien Hock
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