diff options
Diffstat (limited to 'Platform/Marvell/Drivers/SdMmc/XenonDxe/SdDevice.c')
| -rw-r--r-- | Platform/Marvell/Drivers/SdMmc/XenonDxe/SdDevice.c | 1190 |
1 files changed, 1190 insertions, 0 deletions
diff --git a/Platform/Marvell/Drivers/SdMmc/XenonDxe/SdDevice.c b/Platform/Marvell/Drivers/SdMmc/XenonDxe/SdDevice.c new file mode 100644 index 0000000000..9122848021 --- /dev/null +++ b/Platform/Marvell/Drivers/SdMmc/XenonDxe/SdDevice.c @@ -0,0 +1,1190 @@ +/** @file
+ This file provides some helper functions which are specific for SD card device.
+
+ Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "SdMmcPciHcDxe.h"
+
+/**
+ Send command GO_IDLE_STATE to the device to make it go to Idle State.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 for details.
+
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+
+ @retval EFI_SUCCESS The SD device is reset correctly.
+ @retval Others The device reset fails.
+
+**/
+EFI_STATUS
+SdCardReset (
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot
+ )
+{
+ EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
+ EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
+ EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
+ EFI_STATUS Status;
+
+ ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
+ ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
+ ZeroMem (&Packet, sizeof (Packet));
+
+ Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
+ Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
+ Packet.Timeout = SD_MMC_HC_GENERIC_TIMEOUT;
+
+ SdMmcCmdBlk.CommandIndex = SD_GO_IDLE_STATE;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeBc;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+
+ return Status;
+}
+
+/**
+ Send command SEND_IF_COND to the device to inquiry the SD Memory Card interface
+ condition.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 for details.
+
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+ @param[in] SupplyVoltage The supplied voltage by the host.
+ @param[in] CheckPattern The check pattern to be sent to the device.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardVoltageCheck (
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot,
+ IN UINT8 SupplyVoltage,
+ IN UINT8 CheckPattern
+ )
+{
+ EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
+ EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
+ EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
+ EFI_STATUS Status;
+
+ ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
+ ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
+ ZeroMem (&Packet, sizeof (Packet));
+
+ Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
+ Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
+ Packet.Timeout = SD_MMC_HC_GENERIC_TIMEOUT;
+
+ SdMmcCmdBlk.CommandIndex = SD_SEND_IF_COND;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeBcr;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR7;
+ SdMmcCmdBlk.CommandArgument = (SupplyVoltage << 8) | CheckPattern;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+
+ if (!EFI_ERROR (Status)) {
+ if (SdMmcStatusBlk.Resp0 != SdMmcCmdBlk.CommandArgument) {
+ return EFI_DEVICE_ERROR;
+ }
+ }
+
+ return Status;
+}
+
+/**
+ Send command SDIO_SEND_OP_COND to the device to see whether it is SDIO device.
+
+ Refer to SDIO Simplified Spec 3 Section 3.2 for details.
+
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+ @param[in] VoltageWindow The supply voltage window.
+ @param[in] S18R The boolean to show if it should switch to 1.8v.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdioSendOpCond (
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot,
+ IN UINT32 VoltageWindow,
+ IN BOOLEAN S18R
+ )
+{
+ EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
+ EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
+ EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
+ EFI_STATUS Status;
+ UINT32 Switch;
+
+ ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
+ ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
+ ZeroMem (&Packet, sizeof (Packet));
+
+ Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
+ Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
+ Packet.Timeout = SD_MMC_HC_GENERIC_TIMEOUT;
+
+ SdMmcCmdBlk.CommandIndex = SDIO_SEND_OP_COND;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeBcr;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR4;
+
+ Switch = S18R ? BIT24 : 0;
+
+ SdMmcCmdBlk.CommandArgument = (VoltageWindow & 0xFFFFFF) | Switch;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+
+ return Status;
+}
+
+/**
+ Send command SD_SEND_OP_COND to the device to see whether it is SDIO device.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 for details.
+
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+ @param[in] Rca The relative device address of addressed device.
+ @param[in] VoltageWindow The supply voltage window.
+ @param[in] S18R The boolean to show if it should switch to 1.8v.
+ @param[in] Xpc The boolean to show if it should provide 0.36w power control.
+ @param[in] Hcs The boolean to show if it support host capacity info.
+ @param[out] Ocr The buffer to store returned OCR register value.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardSendOpCond (
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot,
+ IN UINT16 Rca,
+ IN UINT32 VoltageWindow,
+ IN BOOLEAN S18R,
+ IN BOOLEAN Xpc,
+ IN BOOLEAN Hcs,
+ OUT UINT32 *Ocr
+ )
+{
+ EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
+ EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
+ EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
+ EFI_STATUS Status;
+ UINT32 Switch;
+ UINT32 MaxPower;
+ UINT32 HostCapacity;
+
+ ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
+ ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
+ ZeroMem (&Packet, sizeof (Packet));
+
+ Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
+ Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
+ Packet.Timeout = SD_MMC_HC_GENERIC_TIMEOUT;
+
+ SdMmcCmdBlk.CommandIndex = SD_APP_CMD;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
+ SdMmcCmdBlk.CommandArgument = (UINT32)Rca << 16;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ SdMmcCmdBlk.CommandIndex = SD_SEND_OP_COND;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeBcr;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR3;
+
+ Switch = S18R ? BIT24 : 0;
+ MaxPower = Xpc ? BIT28 : 0;
+ HostCapacity = Hcs ? BIT30 : 0;
+
+ SdMmcCmdBlk.CommandArgument = (VoltageWindow & 0xFFFFFF) | Switch | MaxPower | HostCapacity;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+ if (!EFI_ERROR (Status)) {
+ //
+ // For details, refer to SD Host Controller Simplified Spec 3.0 Table 2-12.
+ //
+ *Ocr = SdMmcStatusBlk.Resp0;
+ }
+
+ return Status;
+}
+
+/**
+ Broadcast command ALL_SEND_CID to the bus to ask all the SD devices to send the
+ data of their CID registers.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 for details.
+
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardAllSendCid (
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot
+ )
+{
+ EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
+ EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
+ EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
+ EFI_STATUS Status;
+
+ ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
+ ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
+ ZeroMem (&Packet, sizeof (Packet));
+
+ Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
+ Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
+ Packet.Timeout = SD_MMC_HC_GENERIC_TIMEOUT;
+
+ SdMmcCmdBlk.CommandIndex = SD_ALL_SEND_CID;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeBcr;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR2;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+
+ return Status;
+}
+
+/**
+ Send command SET_RELATIVE_ADDR to the SD device to assign a Relative device
+ Address (RCA).
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 for details.
+
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+ @param[out] Rca The relative device address to assign.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardSetRca (
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot,
+ OUT UINT16 *Rca
+ )
+{
+ EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
+ EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
+ EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
+ EFI_STATUS Status;
+
+ ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
+ ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
+ ZeroMem (&Packet, sizeof (Packet));
+
+ Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
+ Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
+ Packet.Timeout = SD_MMC_HC_GENERIC_TIMEOUT;
+
+ SdMmcCmdBlk.CommandIndex = SD_SET_RELATIVE_ADDR;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeBcr;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR6;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+ if (!EFI_ERROR (Status)) {
+ *Rca = (UINT16)(SdMmcStatusBlk.Resp0 >> 16);
+ }
+
+ return Status;
+}
+
+/**
+ Send command SEND_CSD to the SD device to get the data of the CSD register.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 for details.
+
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+ @param[in] Rca The relative device address of selected device.
+ @param[out] Csd The buffer to store the content of the CSD register.
+ Note the caller should ignore the lowest byte of this
+ buffer as the content of this byte is meaningless even
+ if the operation succeeds.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardGetCsd (
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot,
+ IN UINT16 Rca,
+ OUT SD_CSD *Csd
+ )
+{
+ EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
+ EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
+ EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
+ EFI_STATUS Status;
+
+ ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
+ ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
+ ZeroMem (&Packet, sizeof (Packet));
+
+ Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
+ Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
+ Packet.Timeout = SD_MMC_HC_GENERIC_TIMEOUT;
+
+ SdMmcCmdBlk.CommandIndex = SD_SEND_CSD;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR2;
+ SdMmcCmdBlk.CommandArgument = (UINT32)Rca << 16;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+ if (!EFI_ERROR (Status)) {
+ //
+ // For details, refer to SD Host Controller Simplified Spec 3.0 Table 2-12.
+ //
+ CopyMem (((UINT8*)Csd) + 1, &SdMmcStatusBlk.Resp0, sizeof (SD_CSD) - 1);
+ }
+
+ return Status;
+}
+
+/**
+ Send command SEND_CSD to the SD device to get the data of the CSD register.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 for details.
+
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+ @param[in] Rca The relative device address of selected device.
+ @param[out] Scr The buffer to store the content of the SCR register.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardGetScr (
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot,
+ IN UINT16 Rca,
+ OUT SD_SCR *Scr
+ )
+{
+ EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
+ EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
+ EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
+ EFI_STATUS Status;
+
+ ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
+ ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
+ ZeroMem (&Packet, sizeof (Packet));
+
+ Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
+ Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
+ Packet.Timeout = SD_MMC_HC_GENERIC_TIMEOUT;
+
+ SdMmcCmdBlk.CommandIndex = SD_APP_CMD;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
+ SdMmcCmdBlk.CommandArgument = (UINT32)Rca << 16;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ SdMmcCmdBlk.CommandIndex = SD_SEND_SCR;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeAdtc;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
+
+ Packet.InDataBuffer = Scr;
+ Packet.InTransferLength = sizeof (SD_SCR);
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+
+ return Status;
+}
+
+/**
+ Send command SELECT_DESELECT_CARD to the SD device to select/deselect it.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 for details.
+
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+ @param[in] Rca The relative device address of selected device.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardSelect (
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot,
+ IN UINT16 Rca
+ )
+{
+ EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
+ EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
+ EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
+ EFI_STATUS Status;
+
+ ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
+ ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
+ ZeroMem (&Packet, sizeof (Packet));
+
+ Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
+ Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
+ Packet.Timeout = SD_MMC_HC_GENERIC_TIMEOUT;
+
+ SdMmcCmdBlk.CommandIndex = SD_SELECT_DESELECT_CARD;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
+ if (Rca != 0) {
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1b;
+ }
+ SdMmcCmdBlk.CommandArgument = (UINT32)Rca << 16;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+
+ return Status;
+}
+
+/**
+ Send command VOLTAGE_SWITCH to the SD device to switch the voltage of the device.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 for details.
+
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardVoltageSwitch (
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot
+ )
+{
+ EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
+ EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
+ EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
+ EFI_STATUS Status;
+
+ ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
+ ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
+ ZeroMem (&Packet, sizeof (Packet));
+
+ Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
+ Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
+ Packet.Timeout = SD_MMC_HC_GENERIC_TIMEOUT;
+
+ SdMmcCmdBlk.CommandIndex = SD_VOLTAGE_SWITCH;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
+ SdMmcCmdBlk.CommandArgument = 0;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+
+ return Status;
+}
+
+/**
+ Send command SET_BUS_WIDTH to the SD device to set the bus width.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 for details.
+
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+ @param[in] Rca The relative device address of addressed device.
+ @param[in] BusWidth The bus width to be set, it could be 1 or 4.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardSetBusWidth (
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot,
+ IN UINT16 Rca,
+ IN UINT8 BusWidth
+ )
+{
+ EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
+ EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
+ EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
+ EFI_STATUS Status;
+ UINT8 Value;
+
+ ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
+ ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
+ ZeroMem (&Packet, sizeof (Packet));
+
+ Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
+ Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
+ Packet.Timeout = SD_MMC_HC_GENERIC_TIMEOUT;
+
+ SdMmcCmdBlk.CommandIndex = SD_APP_CMD;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
+ SdMmcCmdBlk.CommandArgument = (UINT32)Rca << 16;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ SdMmcCmdBlk.CommandIndex = SD_SET_BUS_WIDTH;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
+
+ if (BusWidth == 1) {
+ Value = 0;
+ } else if (BusWidth == 4) {
+ Value = 2;
+ } else {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ SdMmcCmdBlk.CommandArgument = Value & 0x3;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+ return Status;
+}
+
+/**
+ Send command SWITCH_FUNC to the SD device to check switchable function or switch card function.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 for details.
+
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+ @param[in] AccessMode The value for access mode group.
+ @param[in] CommandSystem The value for command set group.
+ @param[in] DriveStrength The value for drive length group.
+ @param[in] PowerLimit The value for power limit group.
+ @param[in] Mode Switch or check function.
+ @param[out] SwitchResp The return switch function status.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardSwitch (
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot,
+ IN UINT8 AccessMode,
+ IN UINT8 CommandSystem,
+ IN UINT8 DriveStrength,
+ IN UINT8 PowerLimit,
+ IN BOOLEAN Mode,
+ OUT UINT8 *SwitchResp
+ )
+{
+ EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
+ EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
+ EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
+ EFI_STATUS Status;
+ UINT32 ModeValue;
+
+ ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
+ ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
+ ZeroMem (&Packet, sizeof (Packet));
+
+ Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
+ Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
+ Packet.Timeout = SD_MMC_HC_GENERIC_TIMEOUT;
+
+ SdMmcCmdBlk.CommandIndex = SD_SWITCH_FUNC;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeAdtc;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
+
+ ModeValue = Mode ? BIT31 : 0;
+ SdMmcCmdBlk.CommandArgument = (AccessMode & 0xF) | ((PowerLimit & 0xF) << 4) | \
+ ((DriveStrength & 0xF) << 8) | ((DriveStrength & 0xF) << 12) | \
+ ModeValue;
+
+ Packet.InDataBuffer = SwitchResp;
+ Packet.InTransferLength = 64;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+
+ return Status;
+}
+
+/**
+ Send command SEND_STATUS to the addressed SD device to get its status register.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 for details.
+
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+ @param[in] Rca The relative device address of addressed device.
+ @param[out] DevStatus The returned device status.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardSendStatus (
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot,
+ IN UINT16 Rca,
+ OUT UINT32 *DevStatus
+ )
+{
+ EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
+ EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
+ EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
+ EFI_STATUS Status;
+
+ ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
+ ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
+ ZeroMem (&Packet, sizeof (Packet));
+
+ Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
+ Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
+ Packet.Timeout = SD_MMC_HC_GENERIC_TIMEOUT;
+
+ SdMmcCmdBlk.CommandIndex = SD_SEND_STATUS;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
+ SdMmcCmdBlk.CommandArgument = (UINT32)Rca << 16;
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+ if (!EFI_ERROR (Status)) {
+ *DevStatus = SdMmcStatusBlk.Resp0;
+ }
+
+ return Status;
+}
+
+/**
+ Send command SEND_TUNING_BLOCK to the SD device for HS200 optimal sampling point
+ detection.
+
+ It may be sent up to 40 times until the host finishes the tuning procedure.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 for details.
+
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardSendTuningBlk (
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot
+ )
+{
+ EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
+ EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
+ EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
+ EFI_STATUS Status;
+ UINT8 TuningBlock[64];
+
+ ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
+ ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
+ ZeroMem (&Packet, sizeof (Packet));
+
+ Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
+ Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
+ Packet.Timeout = SD_MMC_HC_GENERIC_TIMEOUT;
+
+ SdMmcCmdBlk.CommandIndex = SD_SEND_TUNING_BLOCK;
+ SdMmcCmdBlk.CommandType = SdMmcCommandTypeAdtc;
+ SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
+ SdMmcCmdBlk.CommandArgument = 0;
+
+ Packet.InDataBuffer = TuningBlock;
+ Packet.InTransferLength = sizeof (TuningBlock);
+
+ Status = SdMmcPassThruPassThru (PassThru, Slot, &Packet, NULL);
+
+ return Status;
+}
+
+/**
+ Tunning the sampling point of SDR104 or SDR50 bus speed mode.
+
+ Command SD_SEND_TUNING_BLOCK may be sent up to 40 times until the host finishes the
+ tuning procedure.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 and
+ SD Host Controller Simplified Spec 3.0 section Figure 3-7 for details.
+
+ @param[in] PciIo A pointer to the EFI_PCI_IO_PROTOCOL instance.
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardTuningClock (
+ IN EFI_PCI_IO_PROTOCOL *PciIo,
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot
+ )
+{
+ EFI_STATUS Status;
+ UINT8 HostCtrl2;
+ UINT8 Retry;
+
+ //
+ // Notify the host that the sampling clock tuning procedure starts.
+ //
+ HostCtrl2 = BIT6;
+ Status = SdMmcHcOrMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, sizeof (HostCtrl2), &HostCtrl2);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ //
+ // Ask the device to send a sequence of tuning blocks till the tuning procedure is done.
+ //
+ Retry = 0;
+ do {
+ Status = SdCardSendTuningBlk (PassThru, Slot);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "SdCardSendTuningBlk: Send tuning block fails with %r\n", Status));
+ return Status;
+ }
+
+ Status = SdMmcHcRwMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, TRUE, sizeof (HostCtrl2), &HostCtrl2);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if ((HostCtrl2 & (BIT6 | BIT7)) == 0) {
+ break;
+ }
+ if ((HostCtrl2 & (BIT6 | BIT7)) == BIT7) {
+ return EFI_SUCCESS;
+ }
+ } while (++Retry < 40);
+
+ DEBUG ((DEBUG_ERROR, "SdCardTuningClock: Send tuning block fails at %d times with HostCtrl2 %02x\n", Retry, HostCtrl2));
+ //
+ // Abort the tuning procedure and reset the tuning circuit.
+ //
+ HostCtrl2 = (UINT8)~(BIT6 | BIT7);
+ Status = SdMmcHcAndMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, sizeof (HostCtrl2), &HostCtrl2);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ return EFI_DEVICE_ERROR;
+}
+
+/**
+ Switch the bus width to specified width.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 and
+ SD Host Controller Simplified Spec 3.0 section Figure 3-7 for details.
+
+ @param[in] PciIo A pointer to the EFI_PCI_IO_PROTOCOL instance.
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+ @param[in] Rca The relative device address to be assigned.
+ @param[in] BusWidth The bus width to be set, it could be 4 or 8.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardSwitchBusWidth (
+ IN EFI_PCI_IO_PROTOCOL *PciIo,
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot,
+ IN UINT16 Rca,
+ IN UINT8 BusWidth
+ )
+{
+ EFI_STATUS Status;
+ UINT32 DevStatus;
+
+ Status = SdCardSetBusWidth (PassThru, Slot, Rca, BusWidth);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "SdCardSwitchBusWidth: Switch to bus width %d fails with %r\n", BusWidth, Status));
+ return Status;
+ }
+
+ Status = SdCardSendStatus (PassThru, Slot, Rca, &DevStatus);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "SdCardSwitchBusWidth: Send status fails with %r\n", Status));
+ return Status;
+ }
+ //
+ // Check the switch operation is really successful or not.
+ //
+ if ((DevStatus >> 16) != 0) {
+ DEBUG ((DEBUG_ERROR, "SdCardSwitchBusWidth: The switch operation fails as DevStatus is 0x%08x\n", DevStatus));
+ return EFI_DEVICE_ERROR;
+ }
+
+ Status = SdMmcHcSetBusWidth (PciIo, Slot, BusWidth);
+
+ return Status;
+}
+
+/**
+ Switch the high speed timing according to request.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 4.7 and
+ SD Host Controller Simplified Spec 3.0 section Figure 2-29 for details.
+
+ @param[in] PciIo A pointer to the EFI_PCI_IO_PROTOCOL instance.
+ @param[in] PassThru A pointer to the EFI_SD_MMC_PASS_THRU_PROTOCOL instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+ @param[in] Rca The relative device address to be assigned.
+ @param[in] S18A The boolean to show if it's a UHS-I SD card.
+
+ @retval EFI_SUCCESS The operation is done correctly.
+ @retval Others The operation fails.
+
+**/
+EFI_STATUS
+SdCardSetBusMode (
+ IN EFI_PCI_IO_PROTOCOL *PciIo,
+ IN EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru,
+ IN UINT8 Slot,
+ IN UINT16 Rca,
+ IN BOOLEAN S18A
+ )
+{
+ EFI_STATUS Status;
+ SD_MMC_HC_SLOT_CAP *Capability;
+ UINT32 ClockFreq;
+ UINT8 BusWidth;
+ UINT8 AccessMode;
+ UINT8 HostCtrl1;
+ UINT8 HostCtrl2;
+ UINT8 SwitchResp[64];
+ SD_MMC_HC_PRIVATE_DATA *Private;
+
+ Private = SD_MMC_HC_PRIVATE_FROM_THIS (PassThru);
+
+ Capability = &Private->Capability[Slot];
+
+ Status = SdCardSelect (PassThru, Slot, Rca);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ BusWidth = 4;
+
+ Status = SdCardSwitchBusWidth (PciIo, PassThru, Slot, Rca, BusWidth);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ //
+ // Get the supported bus speed from SWITCH cmd return data group #1.
+ //
+ Status = SdCardSwitch (PassThru, Slot, 0xF, 0xF, 0xF, 0xF, FALSE, SwitchResp);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ //
+ // Calculate supported bus speed/bus width/clock frequency by host and device capability.
+ //
+ ClockFreq = 0;
+ if (S18A && (Capability->Sdr104 != 0) && ((SwitchResp[13] & BIT3) != 0)) {
+ ClockFreq = 208;
+ AccessMode = 3;
+ } else if (S18A && (Capability->Sdr50 != 0) && ((SwitchResp[13] & BIT2) != 0)) {
+ ClockFreq = 100;
+ AccessMode = 2;
+ } else if (S18A && (Capability->Ddr50 != 0) && ((SwitchResp[13] & BIT4) != 0)) {
+ ClockFreq = 50;
+ AccessMode = 4;
+ } else if ((SwitchResp[13] & BIT1) != 0) {
+ ClockFreq = 50;
+ AccessMode = 1;
+ } else {
+ ClockFreq = 25;
+ AccessMode = 0;
+ }
+
+ Status = SdCardSwitch (PassThru, Slot, AccessMode, 0xF, 0xF, 0xF, TRUE, SwitchResp);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if ((SwitchResp[16] & 0xF) != AccessMode) {
+ DEBUG ((DEBUG_ERROR, "SdCardSetBusMode: Switch to AccessMode %d ClockFreq %d BusWidth %d fails! The Switch response is 0x%1x\n", AccessMode, ClockFreq, BusWidth, SwitchResp[16] & 0xF));
+ return EFI_DEVICE_ERROR;
+ }
+
+ DEBUG ((DEBUG_INFO, "SdCardSetBusMode: Switch to AccessMode %d ClockFreq %d BusWidth %d\n", AccessMode, ClockFreq, BusWidth));
+
+ //
+ // Set to Hight Speed timing
+ //
+ if (AccessMode == 1) {
+ HostCtrl1 = BIT2;
+ Status = SdMmcHcOrMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL1, sizeof (HostCtrl1), &HostCtrl1);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
+
+ 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);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = SdMmcHcClockSupply (PciIo, Slot, ClockFreq * 1000, *Capability);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if ((AccessMode == 3) || ((AccessMode == 2) && (Capability->TuningSDR50 != 0))) {
+ Status = SdCardTuningClock (PciIo, PassThru, Slot);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
+
+ return Status;
+}
+
+/**
+ Execute SD device identification procedure.
+
+ Refer to SD Physical Layer Simplified Spec 4.1 Section 3.6 for details.
+
+ @param[in] Private A pointer to the SD_MMC_HC_PRIVATE_DATA instance.
+ @param[in] Slot The slot number of the SD card to send the command to.
+
+ @retval EFI_SUCCESS There is a SD card.
+ @retval Others There is not a SD card.
+
+**/
+EFI_STATUS
+SdCardIdentification (
+ IN SD_MMC_HC_PRIVATE_DATA *Private,
+ IN UINT8 Slot
+ )
+{
+ EFI_STATUS Status;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru;
+ UINT32 Ocr;
+ UINT16 Rca;
+ BOOLEAN Xpc;
+ BOOLEAN S18r;
+ UINT64 MaxCurrent;
+ UINT16 ControllerVer;
+ UINT8 PowerCtrl;
+ UINT32 PresentState;
+ UINT8 HostCtrl2;
+
+ PciIo = Private->PciIo;
+ PassThru = &Private->PassThru;
+ //
+ // 1. Send Cmd0 to the device
+ //
+ Status = SdCardReset (PassThru, Slot);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "SdCardIdentification: Executing Cmd0 fails with %r\n", Status));
+ return Status;
+ }
+ //
+ // 2. Send Cmd8 to the device
+ //
+ Status = SdCardVoltageCheck (PassThru, Slot, 0x1, 0xFF);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "SdCardIdentification: Executing Cmd8 fails with %r\n", Status));
+ return Status;
+ }
+ //
+ // 3. Send SDIO Cmd5 to the device to the SDIO device OCR register.
+ //
+ Status = SdioSendOpCond (PassThru, Slot, 0, FALSE);
+ if (!EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "SdCardIdentification: Found SDIO device, ignore it as we don't support\n"));
+ return EFI_DEVICE_ERROR;
+ }
+ //
+ // 4. Send Acmd41 with voltage window 0 to the device
+ //
+ Status = SdCardSendOpCond (PassThru, Slot, 0, 0, FALSE, FALSE, FALSE, &Ocr);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "SdCardIdentification: Executing SdCardSendOpCond fails with %r\n", Status));
+ return EFI_DEVICE_ERROR;
+ }
+
+ if (Private->Capability[Slot].Voltage33 != 0) {
+ //
+ // Support 3.3V
+ //
+ MaxCurrent = ((UINT32)Private->MaxCurrent[Slot] & 0xFF) * 4;
+ } else if (Private->Capability[Slot].Voltage30 != 0) {
+ //
+ // Support 3.0V
+ //
+ MaxCurrent = (((UINT32)Private->MaxCurrent[Slot] >> 8) & 0xFF) * 4;
+ } else if (Private->Capability[Slot].Voltage18 != 0) {
+ //
+ // Support 1.8V
+ //
+ MaxCurrent = (((UINT32)Private->MaxCurrent[Slot] >> 16) & 0xFF) * 4;
+ } else {
+ ASSERT (FALSE);
+ return EFI_DEVICE_ERROR;
+ }
+
+ if (MaxCurrent >= 150) {
+ Xpc = TRUE;
+ } else {
+ Xpc = FALSE;
+ }
+
+ Status = SdMmcHcRwMmio (PciIo, Slot, SD_MMC_HC_CTRL_VER, TRUE, sizeof (ControllerVer), &ControllerVer);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if ((ControllerVer & 0xFF) == 2) {
+ S18r = TRUE;
+ } else if (((ControllerVer & 0xFF) == 0) || ((ControllerVer & 0xFF) == 1)) {
+ S18r = FALSE;
+ } else {
+ ASSERT (FALSE);
+ return EFI_UNSUPPORTED;
+ }
+ //
+ // 5. Repeatly send Acmd41 with supply voltage window to the device.
+ // Note here we only support the cards complied with SD physical
+ // layer simplified spec version 2.0 and version 3.0 and above.
+ //
+ do {
+ Status = SdCardSendOpCond (PassThru, Slot, 0, Ocr, S18r, Xpc, TRUE, &Ocr);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "SdCardIdentification: SdCardSendOpCond fails with %r Ocr %x, S18r %x, Xpc %x\n", Status, Ocr, S18r, Xpc));
+ return EFI_DEVICE_ERROR;
+ }
+ } while ((Ocr & BIT31) == 0);
+
+ //
+ // 6. If the S18A bit is set and the Host Controller supports 1.8V signaling
+ // (One of support bits is set to 1: SDR50, SDR104 or DDR50 in the
+ // Capabilities register), switch its voltage to 1.8V.
+ //
+ if ((Private->Capability[Slot].Sdr50 != 0 ||
+ Private->Capability[Slot].Sdr104 != 0 ||
+ Private->Capability[Slot].Ddr50 != 0) &&
+ ((Ocr & BIT24) != 0)) {
+ Status = SdCardVoltageSwitch (PassThru, Slot);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "SdCardIdentification: Executing SdCardVoltageSwitch fails with %r\n", Status));
+ Status = EFI_DEVICE_ERROR;
+ goto Error;
+ } else {
+ Status = SdMmcHcStopClock (PciIo, Slot);
+ if (EFI_ERROR (Status)) {
+ Status = EFI_DEVICE_ERROR;
+ goto Error;
+ }
+
+ SdMmcHcRwMmio (PciIo, Slot, SD_MMC_HC_PRESENT_STATE, TRUE, sizeof (PresentState), &PresentState);
+ if (((PresentState >> 20) & 0xF) != 0) {
+ DEBUG ((DEBUG_ERROR, "SdCardIdentification: SwitchVoltage fails with PresentState = 0x%x\n", PresentState));
+ Status = EFI_DEVICE_ERROR;
+ goto Error;
+ }
+ HostCtrl2 = BIT3;
+ SdMmcHcOrMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, sizeof (HostCtrl2), &HostCtrl2);
+
+ gBS->Stall (5000);
+
+ SdMmcHcRwMmio (PciIo, Slot, SD_MMC_HC_HOST_CTRL2, TRUE, sizeof (HostCtrl2), &HostCtrl2);
+ if ((HostCtrl2 & BIT3) == 0) {
+ DEBUG ((DEBUG_ERROR, "SdCardIdentification: SwitchVoltage fails with HostCtrl2 = 0x%x\n", HostCtrl2));
+ Status = EFI_DEVICE_ERROR;
+ goto Error;
+ }
+
+ SdMmcHcInitClockFreq (PciIo, Slot, Private->Capability[Slot]);
+
+ gBS->Stall (1000);
+
+ SdMmcHcRwMmio (PciIo, Slot, SD_MMC_HC_PRESENT_STATE, TRUE, sizeof (PresentState), &PresentState);
+ if (((PresentState >> 20) & 0xF) != 0xF) {
+ DEBUG ((DEBUG_ERROR, "SdCardIdentification: SwitchVoltage fails with PresentState = 0x%x, It should be 0xF\n", PresentState));
+ Status = EFI_DEVICE_ERROR;
+ goto Error;
+ }
+ }
+ DEBUG ((DEBUG_INFO, "SdCardIdentification: Switch to 1.8v signal voltage success\n"));
+ }
+
+ Status = SdCardAllSendCid (PassThru, Slot);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "SdCardIdentification: Executing SdCardAllSendCid fails with %r\n", Status));
+ return Status;
+ }
+
+ Status = SdCardSetRca (PassThru, Slot, &Rca);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "SdCardIdentification: Executing SdCardSetRca fails with %r\n", Status));
+ return Status;
+ }
+ //
+ // Enter Data Tranfer Mode.
+ //
+ DEBUG ((DEBUG_INFO, "SdCardIdentification: Found a SD device at slot [%d]\n", Slot));
+ Private->Slot[Slot].CardType = SdCardType;
+
+ Status = SdCardSetBusMode (PciIo, PassThru, Slot, Rca, ((Ocr & BIT24) != 0));
+
+ return Status;
+
+Error:
+ //
+ // Set SD Bus Power = 0
+ //
+ PowerCtrl = (UINT8)~BIT0;
+ Status = SdMmcHcAndMmio (PciIo, Slot, SD_MMC_HC_POWER_CTRL, sizeof (PowerCtrl), &PowerCtrl);
+ return EFI_DEVICE_ERROR;
+}
+
|