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MdeModulePkg/SdMmcPciHcDxe: Add UhsSignaling to SdMmcOverride protocol

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Some SD Host Controllers use different values in Host Control 2 Register
to select UHS Mode. This patch adds a new UhsSignaling type routine to
the NotifyPhase of the SdMmcOverride protocol.

UHS signaling configuration is moved to a common, default routine
(SdMmcHcUhsSignaling). After it is executed, the protocol producer
can override the values if needed.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>
This commit is contained in:
Tomasz Michalec
2018-11-10 07:01:25 +08:00
committed by Hao Wu
parent 49c9953425
commit a4708009cc
5 changed files with 181 additions and 60 deletions
Download Patch File Download Diff File Expand all files Collapse all files

89
MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c
View File

@@ -1137,6 +1137,95 @@ SdMmcHcInitHost (
return Status;
}
/**
Set SD Host Controler control 2 registry according to selected speed.
@param[in] ControllerHandle The handle of the controller.
@param[in] PciIo The PCI IO protocol instance.
@param[in] Slot The slot number of the SD card to send the command to.
@param[in] Timing The timing to select.
@retval EFI_SUCCESS The timing is set successfully.
@retval Others The timing isn't set successfully.
**/
EFI_STATUS
SdMmcHcUhsSignaling (
IN EFI_HANDLE ControllerHandle,
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT8 Slot,
IN SD_MMC_BUS_MODE Timing
)
{
EFI_STATUS Status;
UINT8 HostCtrl2;
HostCtrl2 = (UINT8)~SD_MMC_HC_CTRL_UHS_MASK;
Status = SdMmcHcAndMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, sizeof (HostCtrl2), &HostCtrl2);
if (EFI_ERROR (Status)) {
return Status;
}
switch (Timing) {
case SdMmcUhsSdr12:
HostCtrl2 = SD_MMC_HC_CTRL_UHS_SDR12;
break;
case SdMmcUhsSdr25:
HostCtrl2 = SD_MMC_HC_CTRL_UHS_SDR25;
break;
case SdMmcUhsSdr50:
HostCtrl2 = SD_MMC_HC_CTRL_UHS_SDR50;
break;
case SdMmcUhsSdr104:
HostCtrl2 = SD_MMC_HC_CTRL_UHS_SDR104;
break;
case SdMmcUhsDdr50:
HostCtrl2 = SD_MMC_HC_CTRL_UHS_DDR50;
break;
case SdMmcMmcLegacy:
HostCtrl2 = SD_MMC_HC_CTRL_MMC_LEGACY;
break;
case SdMmcMmcHsSdr:
HostCtrl2 = SD_MMC_HC_CTRL_MMC_HS_SDR;
break;
case SdMmcMmcHsDdr:
HostCtrl2 = SD_MMC_HC_CTRL_MMC_HS_DDR;
break;
case SdMmcMmcHs200:
HostCtrl2 = SD_MMC_HC_CTRL_MMC_HS200;
break;
case SdMmcMmcHs400:
HostCtrl2 = SD_MMC_HC_CTRL_MMC_HS400;
break;
default:
HostCtrl2 = 0;
break;
}
Status = SdMmcHcOrMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, sizeof (HostCtrl2), &HostCtrl2);
if (EFI_ERROR (Status)) {
return Status;
}
if (mOverride != NULL && mOverride->NotifyPhase != NULL) {
Status = mOverride->NotifyPhase (
ControllerHandle,
Slot,
EdkiiSdMmcUhsSignaling,
&Timing
);
if (EFI_ERROR (Status)) {
DEBUG ((
DEBUG_ERROR,
"%a: SD/MMC uhs signaling notifier callback failed - %r\n",
__FUNCTION__,
Status
));
return Status;
}
}
return EFI_SUCCESS;
}
/**
Turn on/off LED.