*\r
**/\r
\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
+#include <Library/TimerLib.h>\r
+\r
#include "Mmc.h"\r
\r
typedef union {\r
\r
#define EMMC_SWITCH_ERROR (1 << 7)\r
\r
+#define SD_BUS_WIDTH_1BIT (1 << 0)\r
+#define SD_BUS_WIDTH_4BIT (1 << 2)\r
+\r
+#define SD_CCC_SWITCH (1 << 10)\r
+\r
#define DEVICE_STATE(x) (((x) >> 9) & 0xf)\r
typedef enum _EMMC_DEVICE_STATE {\r
EMMC_IDLE_STATE = 0,\r
}\r
\r
// Fetch ECSD\r
- Status = Host->SendCommand (Host, MMC_CMD8, RCA);\r
+ MmcHostInstance->CardInfo.ECSDData = AllocatePages (EFI_SIZE_TO_PAGES (sizeof (ECSD)));\r
+ if (MmcHostInstance->CardInfo.ECSDData == NULL) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
+ Status = Host->SendCommand (Host, MMC_CMD8, 0);\r
if (EFI_ERROR (Status)) {\r
DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): ECSD fetch error, Status=%r.\n", Status));\r
}\r
\r
- Status = Host->ReadBlockData (Host, 0, 512, (UINT32 *)&(MmcHostInstance->CardInfo.ECSDData));\r
+ Status = Host->ReadBlockData (Host, 0, 512, (UINT32 *)MmcHostInstance->CardInfo.ECSDData);\r
if (EFI_ERROR (Status)) {\r
DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): ECSD read error, Status=%r.\n", Status));\r
- return Status;\r
+ goto FreePageExit;\r
}\r
\r
// Make sure device exiting data mode\r
Status = EmmcGetDeviceState (MmcHostInstance, &State);\r
if (EFI_ERROR (Status)) {\r
DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Failed to get device state, Status=%r.\n", Status));\r
- return Status;\r
+ goto FreePageExit;\r
}\r
} while (State == EMMC_DATA_STATE);\r
\r
Media->LogicalBlocksPerPhysicalBlock = 1;\r
Media->IoAlign = 4;\r
// Compute last block using bits [215:212] of the ECSD\r
- Media->LastBlock = MmcHostInstance->CardInfo.ECSDData.SECTOR_COUNT - 1; // eMMC isn't supposed to report this for\r
+ Media->LastBlock = MmcHostInstance->CardInfo.ECSDData->SECTOR_COUNT - 1; // eMMC isn't supposed to report this for\r
// Cards <2GB in size, but the model does.\r
\r
// Setup card type\r
MmcHostInstance->CardInfo.CardType = EMMC_CARD;\r
return EFI_SUCCESS;\r
+\r
+FreePageExit:\r
+ FreePages (MmcHostInstance->CardInfo.ECSDData, EFI_SIZE_TO_PAGES (sizeof (ECSD)));\r
+ return Status;\r
}\r
\r
STATIC\r
EFI_MMC_HOST_PROTOCOL *Host;\r
EFI_STATUS Status = EFI_SUCCESS;\r
ECSD *ECSDData;\r
- UINT32 BusClockFreq, Idx;\r
+ UINT32 BusClockFreq, Idx, BusMode;\r
UINT32 TimingMode[4] = {EMMCHS52DDR1V2, EMMCHS52DDR1V8, EMMCHS52, EMMCHS26};\r
\r
Host = MmcHostInstance->MmcHost;\r
- ECSDData = &MmcHostInstance->CardInfo.ECSDData;\r
+ ECSDData = MmcHostInstance->CardInfo.ECSDData;\r
if (ECSDData->DEVICE_TYPE == EMMCBACKWARD)\r
return EFI_SUCCESS;\r
\r
}\r
Status = Host->SetIos (Host, BusClockFreq, 8, TimingMode[Idx]);\r
if (!EFI_ERROR (Status)) {\r
- Status = EmmcSetEXTCSD (MmcHostInstance, EXTCSD_BUS_WIDTH, EMMC_BUS_WIDTH_DDR_8BIT);\r
+ switch (TimingMode[Idx]) {\r
+ case EMMCHS52DDR1V2:\r
+ case EMMCHS52DDR1V8:\r
+ BusMode = EMMC_BUS_WIDTH_DDR_8BIT;\r
+ break;\r
+ case EMMCHS52:\r
+ case EMMCHS26:\r
+ BusMode = EMMC_BUS_WIDTH_8BIT;\r
+ break;\r
+ default:\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+ Status = EmmcSetEXTCSD (MmcHostInstance, EXTCSD_BUS_WIDTH, BusMode);\r
if (EFI_ERROR (Status)) {\r
DEBUG ((DEBUG_ERROR, "InitializeEmmcDevice(): Failed to set EXTCSD bus width, Status:%r\n", Status));\r
}\r
return Status;\r
}\r
\r
+STATIC\r
+UINT32\r
+CreateSwitchCmdArgument (\r
+ IN UINT32 Mode,\r
+ IN UINT8 Group,\r
+ IN UINT8 Value\r
+ )\r
+{\r
+ UINT32 Argument;\r
+\r
+ Argument = Mode << 31 | 0x00FFFFFF;\r
+ Argument &= ~(0xF << (Group * 4));\r
+ Argument |= Value << (Group * 4);\r
+\r
+ return Argument;\r
+}\r
+\r
STATIC\r
EFI_STATUS\r
InitializeSdMmcDevice (\r
{\r
UINT32 CmdArg;\r
UINT32 Response[4];\r
+ UINT32 Buffer[128];\r
+ UINT32 Speed;\r
UINTN BlockSize;\r
UINTN CardSize;\r
UINTN NumBlocks;\r
+ BOOLEAN CccSwitch;\r
+ SCR Scr;\r
EFI_STATUS Status;\r
EFI_MMC_HOST_PROTOCOL *MmcHost;\r
\r
+ Speed = SD_DEFAULT_SPEED;\r
MmcHost = MmcHostInstance->MmcHost;\r
\r
// Send a command to get Card specific data\r
return Status;\r
}\r
PrintCSD (Response);\r
+ if (MMC_CSD_GET_CCC(Response) & SD_CCC_SWITCH) {\r
+ CccSwitch = TRUE;\r
+ } else {\r
+ CccSwitch = FALSE;\r
+ }\r
\r
if (MmcHostInstance->CardInfo.CardType == SD_CARD_2_HIGH) {\r
CardSize = HC_MMC_CSD_GET_DEVICESIZE (Response);\r
return Status;\r
}\r
\r
+ Status = MmcHost->SendCommand (MmcHost, MMC_CMD55, CmdArg);\r
+ if (EFI_ERROR (Status)) {\r
+ DEBUG ((DEBUG_ERROR, "%a (MMC_CMD55): Error and Status = %r\n", __FUNCTION__, Status));\r
+ return Status;\r
+ }\r
+ Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R1, Response);\r
+ if (EFI_ERROR (Status)) {\r
+ DEBUG ((DEBUG_ERROR, "%a (MMC_CMD55): Error and Status = %r\n", __FUNCTION__, Status));\r
+ return Status;\r
+ }\r
+ if ((Response[0] & MMC_STATUS_APP_CMD) == 0) {\r
+ return EFI_SUCCESS;\r
+ }\r
+\r
+ /* SCR */\r
+ Status = MmcHost->SendCommand (MmcHost, MMC_ACMD51, 0);\r
+ if (EFI_ERROR (Status)) {\r
+ DEBUG ((EFI_D_ERROR, "%a(MMC_ACMD51): Error and Status = %r\n", __func__, Status));\r
+ return Status;\r
+ } else {\r
+ Status = MmcHost->ReadBlockData (MmcHost, 0, 8, Buffer);\r
+ if (EFI_ERROR (Status)) {\r
+ DEBUG ((EFI_D_ERROR, "%a(MMC_ACMD51): ReadBlockData Error and Status = %r\n", __func__, Status));\r
+ return Status;\r
+ }\r
+ CopyMem (&Scr, Buffer, 8);\r
+ if (Scr.SD_SPEC == 2) {\r
+ if (Scr.SD_SPEC3 == 1) {\r
+ if (Scr.SD_SPEC4 == 1) {\r
+ DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 4.xx\n"));\r
+ } else {\r
+ DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 3.0x\n"));\r
+ }\r
+ } else {\r
+ if (Scr.SD_SPEC4 == 0) {\r
+ DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 2.0\n"));\r
+ } else {\r
+ DEBUG ((EFI_D_ERROR, "Found invalid SD Card\n"));\r
+ }\r
+ }\r
+ } else {\r
+ if ((Scr.SD_SPEC3 == 0) && (Scr.SD_SPEC4 == 0)) {\r
+ if (Scr.SD_SPEC == 1) {\r
+ DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 1.10\n"));\r
+ } else {\r
+ DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 1.0\n"));\r
+ }\r
+ } else {\r
+ DEBUG ((EFI_D_ERROR, "Found invalid SD Card\n"));\r
+ }\r
+ }\r
+ }\r
+ if (CccSwitch) {\r
+ /* SD Switch, Mode:0, Group:0, Value:0 */\r
+ CmdArg = CreateSwitchCmdArgument(0, 0, 0);\r
+ Status = MmcHost->SendCommand (MmcHost, MMC_CMD6, CmdArg);\r
+ if (EFI_ERROR (Status)) {\r
+ DEBUG ((DEBUG_ERROR, "%a (MMC_CMD6): Error and Status = %r\n", __FUNCTION__, Status));\r
+ return Status;\r
+ } else {\r
+ Status = MmcHost->ReadBlockData (MmcHost, 0, SWITCH_CMD_DATA_LENGTH, Buffer);\r
+ if (EFI_ERROR (Status)) {\r
+ DEBUG ((DEBUG_ERROR, "%a (MMC_CMD6): ReadBlockData Error and Status = %r\n", __FUNCTION__, Status));\r
+ return Status;\r
+ }\r
+ }\r
+\r
+ if (!(Buffer[3] & SD_HIGH_SPEED_SUPPORTED)) {\r
+ DEBUG ((DEBUG_ERROR, "%a : High Speed not supported by Card %r\n", __FUNCTION__, Status));\r
+ return Status;\r
+ }\r
+\r
+ Speed = SD_HIGH_SPEED;\r
+\r
+ /* SD Switch, Mode:1, Group:0, Value:1 */\r
+ CmdArg = CreateSwitchCmdArgument(1, 0, 1);\r
+ Status = MmcHost->SendCommand (MmcHost, MMC_CMD6, CmdArg);\r
+ if (EFI_ERROR (Status)) {\r
+ DEBUG ((DEBUG_ERROR, "%a (MMC_CMD6): Error and Status = %r\n", __FUNCTION__, Status));\r
+ return Status;\r
+ } else {\r
+ Status = MmcHost->ReadBlockData (MmcHost, 0, SWITCH_CMD_DATA_LENGTH, Buffer);\r
+ if (EFI_ERROR (Status)) {\r
+ DEBUG ((DEBUG_ERROR, "%a (MMC_CMD6): ReadBlockData Error and Status = %r\n", __FUNCTION__, Status));\r
+ return Status;\r
+ }\r
+\r
+ if ((Buffer[4] & SWITCH_CMD_SUCCESS_MASK) != 0x01000000) {\r
+ DEBUG((DEBUG_ERROR, "Problem switching SD card into high-speed mode\n"));\r
+ return Status;\r
+ }\r
+ }\r
+ }\r
+ if (Scr.SD_BUS_WIDTHS & SD_BUS_WIDTH_4BIT) {\r
+ CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r
+ Status = MmcHost->SendCommand (MmcHost, MMC_CMD55, CmdArg);\r
+ if (EFI_ERROR (Status)) {\r
+ DEBUG ((DEBUG_ERROR, "%a (MMC_CMD55): Error and Status = %r\n", __FUNCTION__, Status));\r
+ return Status;\r
+ }\r
+ /* Width: 4 */\r
+ Status = MmcHost->SendCommand (MmcHost, MMC_CMD6, 2);\r
+ if (EFI_ERROR (Status)) {\r
+ DEBUG ((DEBUG_ERROR, "%a (MMC_CMD6): Error and Status = %r\n", __FUNCTION__, Status));\r
+ return Status;\r
+ }\r
+ }\r
+ if (MMC_HOST_HAS_SETIOS(MmcHost)) {\r
+ Status = MmcHost->SetIos (MmcHost, Speed, BUSWIDTH_4, EMMCBACKWARD);\r
+ if (EFI_ERROR (Status)) {\r
+ DEBUG ((DEBUG_ERROR, "%a (SetIos): Error and Status = %r\n", __FUNCTION__, Status));\r
+ return Status;\r
+ }\r
+ }\r
return EFI_SUCCESS;\r
}\r
\r
projects / mirror_edk2.git / blobdiff