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

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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)) { if ((Status == EFI_MEDIA_CHANGED) && (MediaPresent == TRUE)) {
DEBUG ((EFI_D_INFO, "SdMmcPciHcEnumerateDevice: device connected at slot %d of pci %p\n", Slot, Private->PciIo)); 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 // Reinitialize slot and restart identification process for the new attached device
// //
Status = SdMmcHcInitHost (Private->PciIo, Slot, Private->Capability[Slot]); Status = SdMmcHcInitHost (Private->PciIo, Slot, Private->Capability[Slot]);