From: Tomasz Michalec <t...@semihalf.com> 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 <m...@semihalf.com> --- MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.h | 34 ++++++++ MdeModulePkg/Include/Protocol/SdMmcOverride.h | 17 ++++ MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/EmmcDevice.c | 86 ++++++++----------- MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdDevice.c | 15 ++-- MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c | 89 ++++++++++++++++++++ 5 files changed, 181 insertions(+), 60 deletions(-) diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.h b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.h index 7e3f588..b47b0df 100644 --- a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.h +++ b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.h @@ -63,6 +63,21 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. #define SD_MMC_HC_CTRL_VER 0xFE // +// SD Host Controller bits to HOST_CTRL2 register +// +#define SD_MMC_HC_CTRL_UHS_MASK 0x0007 +#define SD_MMC_HC_CTRL_UHS_SDR12 0x0000 +#define SD_MMC_HC_CTRL_UHS_SDR25 0x0001 +#define SD_MMC_HC_CTRL_UHS_SDR50 0x0002 +#define SD_MMC_HC_CTRL_UHS_SDR104 0x0003 +#define SD_MMC_HC_CTRL_UHS_DDR50 0x0004 +#define SD_MMC_HC_CTRL_MMC_LEGACY 0x0000 +#define SD_MMC_HC_CTRL_MMC_HS_SDR 0x0001 +#define SD_MMC_HC_CTRL_MMC_HS_DDR 0x0004 +#define SD_MMC_HC_CTRL_MMC_HS200 0x0003 +#define SD_MMC_HC_CTRL_MMC_HS400 0x0005 + +// // The transfer modes supported by SD Host Controller // Simplified Spec 3.0 Table 1-2 // @@ -518,4 +533,23 @@ SdMmcHcInitTimeoutCtrl ( IN UINT8 Slot ); +/** + Set SD Host Controller 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 + ); + #endif diff --git a/MdeModulePkg/Include/Protocol/SdMmcOverride.h b/MdeModulePkg/Include/Protocol/SdMmcOverride.h index 8a7669e..f948bef 100644 --- a/MdeModulePkg/Include/Protocol/SdMmcOverride.h +++ b/MdeModulePkg/Include/Protocol/SdMmcOverride.h @@ -26,11 +26,28 @@ typedef struct _EDKII_SD_MMC_OVERRIDE EDKII_SD_MMC_OVERRIDE; +// +// Bus timing modes +// +typedef enum { + SdMmcUhsSdr12, + SdMmcUhsSdr25, + SdMmcUhsSdr50, + SdMmcUhsSdr104, + SdMmcUhsDdr50, + SdMmcMmcLegacy, + SdMmcMmcHsSdr, + SdMmcMmcHsDdr, + SdMmcMmcHs200, + SdMmcMmcHs400, +} SD_MMC_BUS_MODE; + typedef enum { EdkiiSdMmcResetPre, EdkiiSdMmcResetPost, EdkiiSdMmcInitHostPre, EdkiiSdMmcInitHostPost, + EdkiiSdMmcUhsSignaling, } EDKII_SD_MMC_PHASE_TYPE; /** diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/EmmcDevice.c b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/EmmcDevice.c index c5fd214..db4e8a1 100755 --- a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/EmmcDevice.c +++ b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/EmmcDevice.c @@ -740,10 +740,13 @@ EmmcSwitchToHighSpeed ( IN UINT8 BusWidth ) { - EFI_STATUS Status; - UINT8 HsTiming; - UINT8 HostCtrl1; - UINT8 HostCtrl2; + EFI_STATUS Status; + UINT8 HsTiming; + UINT8 HostCtrl1; + SD_MMC_BUS_MODE Timing; + SD_MMC_HC_PRIVATE_DATA *Private; + + Private = SD_MMC_HC_PRIVATE_FROM_THIS (PassThru); Status = EmmcSwitchBusWidth (PciIo, PassThru, Slot, Rca, IsDdr, BusWidth); if (EFI_ERROR (Status)) { @@ -758,25 +761,15 @@ EmmcSwitchToHighSpeed ( return Status; } - // - // Clean UHS Mode Select field of Host Control 2 reigster before update - // - HostCtrl2 = (UINT8)~0x7; - Status = SdMmcHcAndMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, sizeof (HostCtrl2), &HostCtrl2); - if (EFI_ERROR (Status)) { - return Status; - } - // - // Set UHS Mode Select field of Host Control 2 reigster to SDR12/25/50 - // if (IsDdr) { - HostCtrl2 = BIT2; + Timing = SdMmcMmcHsDdr; } else if (ClockFreq == 52) { - HostCtrl2 = BIT0; + Timing = SdMmcMmcHsSdr; } else { - HostCtrl2 = 0; + Timing = SdMmcMmcLegacy; } - Status = SdMmcHcOrMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, sizeof (HostCtrl2), &HostCtrl2); + + Status = SdMmcHcUhsSignaling (Private->ControllerHandle, PciIo, Slot, Timing); if (EFI_ERROR (Status)) { return Status; } @@ -814,10 +807,13 @@ EmmcSwitchToHS200 ( IN UINT8 BusWidth ) { - EFI_STATUS Status; - UINT8 HsTiming; - UINT8 HostCtrl2; - UINT16 ClockCtrl; + EFI_STATUS Status; + UINT8 HsTiming; + UINT16 ClockCtrl; + SD_MMC_BUS_MODE Timing; + SD_MMC_HC_PRIVATE_DATA *Private; + + Private = SD_MMC_HC_PRIVATE_FROM_THIS (PassThru); if ((BusWidth != 4) && (BusWidth != 8)) { return EFI_INVALID_PARAMETER; @@ -837,22 +833,14 @@ EmmcSwitchToHS200 ( if (EFI_ERROR (Status)) { return Status; } - // - // Clean UHS Mode Select field of Host Control 2 reigster before update - // - HostCtrl2 = (UINT8)~0x7; - Status = SdMmcHcAndMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, sizeof (HostCtrl2), &HostCtrl2); - if (EFI_ERROR (Status)) { - return Status; - } - // - // Set UHS Mode Select field of Host Control 2 reigster to SDR104 - // - HostCtrl2 = BIT0 | BIT1; - Status = SdMmcHcOrMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, sizeof (HostCtrl2), &HostCtrl2); + + Timing = SdMmcMmcHs200; + + Status = SdMmcHcUhsSignaling (Private->ControllerHandle, PciIo, Slot, Timing); if (EFI_ERROR (Status)) { return Status; } + // // Wait Internal Clock Stable in the Clock Control register to be 1 before set SD Clock Enable bit // @@ -910,9 +898,12 @@ EmmcSwitchToHS400 ( IN UINT32 ClockFreq ) { - EFI_STATUS Status; - UINT8 HsTiming; - UINT8 HostCtrl2; + EFI_STATUS Status; + UINT8 HsTiming; + SD_MMC_BUS_MODE Timing; + SD_MMC_HC_PRIVATE_DATA *Private; + + Private = SD_MMC_HC_PRIVATE_FROM_THIS (PassThru); Status = EmmcSwitchToHS200 (PciIo, PassThru, Slot, Rca, ClockFreq, 8); if (EFI_ERROR (Status)) { @@ -933,19 +924,10 @@ EmmcSwitchToHS400 ( if (EFI_ERROR (Status)) { return Status; } - // - // Clean UHS Mode Select field of Host Control 2 reigster before update - // - HostCtrl2 = (UINT8)~0x7; - Status = SdMmcHcAndMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, sizeof (HostCtrl2), &HostCtrl2); - if (EFI_ERROR (Status)) { - return Status; - } - // - // Set UHS Mode Select field of Host Control 2 reigster to HS400 - // - HostCtrl2 = BIT0 | BIT2; - Status = SdMmcHcOrMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, sizeof (HostCtrl2), &HostCtrl2); + + Timing = SdMmcMmcHs400; + + Status = SdMmcHcUhsSignaling (Private->ControllerHandle, PciIo, Slot, Timing); if (EFI_ERROR (Status)) { return Status; } diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdDevice.c b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdDevice.c index 6ee9ed7..55b3564 100644 --- a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdDevice.c +++ b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdDevice.c @@ -784,8 +784,8 @@ SdCardSetBusMode ( UINT8 BusWidth; UINT8 AccessMode; UINT8 HostCtrl1; - UINT8 HostCtrl2; UINT8 SwitchResp[64]; + SD_MMC_BUS_MODE Timing; SD_MMC_HC_PRIVATE_DATA *Private; Private = SD_MMC_HC_PRIVATE_FROM_THIS (PassThru); @@ -817,18 +817,23 @@ SdCardSetBusMode ( if (S18A && (Capability->Sdr104 != 0) && ((SwitchResp[13] & BIT3) != 0)) { ClockFreq = 208; AccessMode = 3; + Timing = SdMmcUhsSdr104; } else if (S18A && (Capability->Sdr50 != 0) && ((SwitchResp[13] & BIT2) != 0)) { ClockFreq = 100; AccessMode = 2; + Timing = SdMmcUhsSdr50; } else if (S18A && (Capability->Ddr50 != 0) && ((SwitchResp[13] & BIT4) != 0)) { ClockFreq = 50; AccessMode = 4; + Timing = SdMmcUhsDdr50; } else if ((SwitchResp[13] & BIT1) != 0) { ClockFreq = 50; AccessMode = 1; + Timing = SdMmcUhsSdr25; } else { ClockFreq = 25; AccessMode = 0; + Timing = SdMmcUhsSdr12; } Status = SdCardSwitch (PassThru, Slot, AccessMode, 0xF, 0xF, 0xF, TRUE, SwitchResp); @@ -854,13 +859,7 @@ SdCardSetBusMode ( } } - HostCtrl2 = (UINT8)~0x7; - Status = SdMmcHcAndMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, sizeof (HostCtrl2), &HostCtrl2); - if (EFI_ERROR (Status)) { - return Status; - } - HostCtrl2 = AccessMode; - Status = SdMmcHcOrMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, sizeof (HostCtrl2), &HostCtrl2); + Status = SdMmcHcUhsSignaling (Private->ControllerHandle, PciIo, Slot, Timing); if (EFI_ERROR (Status)) { return Status; } diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c index 923c55b..c3eec8b 100644 --- a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c +++ b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c @@ -1138,6 +1138,95 @@ SdMmcHcInitHost ( } /** + 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. @param[in] PciIo The PCI IO protocol instance. -- 2.7.4 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel