diff options
| -rw-r--r-- | MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/EmmcDevice.c | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/EmmcDevice.c b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/EmmcDevice.c index 3f4a8e5413..bd70490286 100644 --- a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/EmmcDevice.c +++ b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/EmmcDevice.c @@ -837,7 +837,6 @@ EmmcSwitchToHS200 ( )
{
EFI_STATUS Status;
- UINT16 ClockCtrl;
SD_MMC_HC_PRIVATE_DATA *Private;
Private = SD_MMC_HC_PRIVATE_FROM_THIS (PassThru);
@@ -851,40 +850,12 @@ EmmcSwitchToHS200 ( if (EFI_ERROR (Status)) {
return Status;
}
- //
- // Stop bus clock at first
- //
- Status = SdMmcHcStopClock (PciIo, Slot);
- if (EFI_ERROR (Status)) {
- return Status;
- }
Status = SdMmcHcUhsSignaling (Private->ControllerHandle, PciIo, Slot, BusMode->BusTiming);
if (EFI_ERROR (Status)) {
return Status;
}
- //
- // Wait Internal Clock Stable in the Clock Control register to be 1 before set SD Clock Enable bit
- //
- Status = SdMmcHcWaitMmioSet (
- PciIo,
- Slot,
- SD_MMC_HC_CLOCK_CTRL,
- sizeof (ClockCtrl),
- BIT1,
- BIT1,
- SD_MMC_HC_GENERIC_TIMEOUT
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- //
- // Set SD Clock Enable in the Clock Control register to 1
- //
- ClockCtrl = BIT2;
- Status = SdMmcHcOrMmio (PciIo, Slot, SD_MMC_HC_CLOCK_CTRL, sizeof (ClockCtrl), &ClockCtrl);
-
Status = EmmcSwitchBusTiming (PciIo, PassThru, Slot, Rca, BusMode->DriverStrength, BusMode->BusTiming, BusMode->ClockFreq);
if (EFI_ERROR (Status)) {
return Status;
|