diff options
| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-08-02 10:14:52 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-08-02 10:14:52 +0000 |
| commit | dfab911077311b14f0355ac342ea23f989177285 (patch) | |
| tree | 14101f204c428d5c7b7e38c72ac77abec047a5b0 /edk2/EmbeddedPkg | |
| parent | 2f3a2fa4793242b0fdcde9520dcde4843be41f82 (diff) | |
EmbeddedPkg/MmcDxe: Avoid nanosecond delay when command succeeds
Check response just after receiving it to avoid the delay.
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk@13584 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'edk2/EmbeddedPkg')
| -rw-r--r-- | edk2/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/edk2/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c b/edk2/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c index 32a85196a..7452b5539 100644 --- a/edk2/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c +++ b/edk2/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c @@ -628,7 +628,10 @@ MmcIoBlocks ( while(!(Response[0] & MMC_R0_READY_FOR_DATA) && (MMC_R0_CURRENTSTATE(Response) != MMC_R0_STATE_TRAN) && Timeout--) {
Status = MmcHost->SendCommand (MmcHost, MMC_CMD13, CmdArg);
if (!EFI_ERROR(Status)) {
- MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R1,Response);
+ MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R1, Response);
+ if ((Response[0] & MMC_R0_READY_FOR_DATA)) {
+ break; // Prevents delay once finished
+ }
}
NanoSecondDelay(100);
Timeout--;
|