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MdeModulePkg/SdMmcPciHc: Reset the slot when sd device is connected 

The original code doesn't reset the slot when there is device change.
It may bring issue on device identification procedure of some SD cards.

Cc: Hao Wu <hao.a.wu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Feng Tian <feng.tian@Intel.com>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>
This commit is contained in:
Feng Tian 2016-04-12 13:57:48 +08:00
parent ac30e4c15d
commit 83ceccabd3
1 changed files with 7 additions and 0 deletions
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7
MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.c
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@ -275,6 +275,13 @@ SdMmcPciHcEnumerateDevice (
if ((Status == EFI_MEDIA_CHANGED) && (MediaPresent == TRUE)) {
DEBUG ((EFI_D_INFO, "SdMmcPciHcEnumerateDevice: device connected at slot %d of pci %p\n", Slot, Private->PciIo));
//
// Reset the specified slot of the SD/MMC Pci Host Controller
//
Status = SdMmcHcReset (Private->PciIo, Slot);
if (EFI_ERROR (Status)) {
continue;
}
//
// Reinitialize slot and restart identification process for the new attached device
//
Status = SdMmcHcInitHost (Private->PciIo, Slot, Private->Capability[Slot]);