MdeModulePkg/SdMmcPciHcDxe: Add V3 64b DMA Support

Driver was supporting only 32b DMA support for V3 controllers. Add
support for 64b DMA as well for completeness.

For V4.0 64b support, driver was looking at incorrect capability
register bit. Fix for that is present as well.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1583
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ashish Singhal <ashishsingha@nvidia.com>
Tested-by: Eugene Cohen <eugene@hp.com>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>

4 files changed, 161 insertions, 73 deletions

diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.c b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.c
index b474f8decd..9b7b88cecc 100644
--- a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.c
+++ b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.c
@@ -6,7 +6,7 @@
 

   It would expose EFI_SD_MMC_PASS_THRU_PROTOCOL for upper layer use.

 

-  Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.

+  Copyright (c) 2018-2019, NVIDIA CORPORATION. All rights reserved.

   Copyright (c) 2015 - 2019, 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

@@ -666,8 +666,12 @@ SdMmcPciHcDriverBindingStart (
     // If any of the slots does not support 64b system bus

     // do not enable 64b DMA in the PCI layer.

     //

-    if (Private->Capability[Slot].SysBus64V3 == 0 &&

-        Private->Capability[Slot].SysBus64V4 == 0) {

+    if ((Private->ControllerVersion[Slot] == SD_MMC_HC_CTRL_VER_300 &&

+         Private->Capability[Slot].SysBus64V3 == 0) ||

+        (Private->ControllerVersion[Slot] == SD_MMC_HC_CTRL_VER_400 &&

+         Private->Capability[Slot].SysBus64V3 == 0) ||

+        (Private->ControllerVersion[Slot] >= SD_MMC_HC_CTRL_VER_410 &&

+         Private->Capability[Slot].SysBus64V4 == 0)) {

       Support64BitDma = FALSE;

     }

 

diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.h b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.h
index 1bb701a503..8846fde5cd 100644
--- a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.h
+++ b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.h
@@ -2,7 +2,7 @@
 

   Provides some data structure definitions used by the SD/MMC host controller driver.

 

-Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.

+Copyright (c) 2018-2019, NVIDIA CORPORATION. All rights reserved.

 Copyright (c) 2015, 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

@@ -145,13 +145,15 @@ typedef struct {
   EFI_PHYSICAL_ADDRESS                DataPhy;

   VOID                                *DataMap;

   SD_MMC_HC_TRANSFER_MODE             Mode;

+  SD_MMC_HC_ADMA_LENGTH_MODE          AdmaLengthMode;

 

   EFI_EVENT                           Event;

   BOOLEAN                             Started;

   UINT64                              Timeout;

 

   SD_MMC_HC_ADMA_32_DESC_LINE         *Adma32Desc;

-  SD_MMC_HC_ADMA_64_DESC_LINE         *Adma64Desc;

+  SD_MMC_HC_ADMA_64_V3_DESC_LINE      *Adma64V3Desc;

+  SD_MMC_HC_ADMA_64_V4_DESC_LINE      *Adma64V4Desc;

   EFI_PHYSICAL_ADDRESS                AdmaDescPhy;

   VOID                                *AdmaMap;

   UINT32                              AdmaPages;

diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c
index d73fa10a35..6fefed12ff 100644
--- a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c
+++ b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c
@@ -6,7 +6,7 @@
 

   It would expose EFI_SD_MMC_PASS_THRU_PROTOCOL for upper layer use.

 

-  Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.

+  Copyright (c) 2018-2019, NVIDIA CORPORATION. All rights reserved.

   Copyright (c) 2015 - 2019, 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

@@ -1010,16 +1010,28 @@ SdMmcHcInitV4Enhancements (
   if (ControllerVer >= SD_MMC_HC_CTRL_VER_400) {

     HostCtrl2 = SD_MMC_HC_V4_EN;

     //

-    // Check if V4 64bit support is available

+    // Check if controller version V4.0

     //

-    if (Capability.SysBus64V4 != 0) {

-      HostCtrl2 |= SD_MMC_HC_64_ADDR_EN;

-      DEBUG ((DEBUG_INFO, "Enabled V4 64 bit system bus support\n"));

+    if (ControllerVer == SD_MMC_HC_CTRL_VER_400) {

+      //

+      // Check if 64bit support is available

+      //

+      if (Capability.SysBus64V3 != 0) {

+        HostCtrl2 |= SD_MMC_HC_64_ADDR_EN;

+        DEBUG ((DEBUG_INFO, "Enabled V4 64 bit system bus support\n"));

+      }

     }

     //

     // Check if controller version V4.10 or higher

     //

-    if (ControllerVer >= SD_MMC_HC_CTRL_VER_410) {

+    else if (ControllerVer >= SD_MMC_HC_CTRL_VER_410) {

+      //

+      // Check if 64bit support is available

+      //

+      if (Capability.SysBus64V4 != 0) {

+        HostCtrl2 |= SD_MMC_HC_64_ADDR_EN;

+        DEBUG ((DEBUG_INFO, "Enabled V4 64 bit system bus support\n"));

+      }

       HostCtrl2 |= SD_MMC_HC_26_DATA_LEN_ADMA_EN;

       DEBUG ((DEBUG_INFO, "Enabled V4 26 bit data length ADMA support\n"));

     }

@@ -1393,14 +1405,10 @@ BuildAdmaDescTable (
   EFI_PCI_IO_PROTOCOL       *PciIo;

   EFI_STATUS                Status;

   UINTN                     Bytes;

-  BOOLEAN                   AddressingMode64;

-  BOOLEAN                   DataLength26;

   UINT32                    AdmaMaxDataPerLine;

   UINT32                    DescSize;

   VOID                      *AdmaDesc;

 

-  AddressingMode64   = FALSE;

-  DataLength26       = FALSE;

   AdmaMaxDataPerLine = ADMA_MAX_DATA_PER_LINE_16B;

   DescSize           = sizeof (SD_MMC_HC_ADMA_32_DESC_LINE);

   AdmaDesc           = NULL;

@@ -1410,27 +1418,16 @@ BuildAdmaDescTable (
   PciIo   = Trb->Private->PciIo;

 

   //

-  // Detect whether 64bit addressing is supported.

-  //

-  if (ControllerVer >= SD_MMC_HC_CTRL_VER_400) {

-    Status = SdMmcHcCheckMmioSet(PciIo, Trb->Slot, SD_MMC_HC_HOST_CTRL2, sizeof(UINT16),

-                                 SD_MMC_HC_V4_EN|SD_MMC_HC_64_ADDR_EN, SD_MMC_HC_V4_EN|SD_MMC_HC_64_ADDR_EN);

-    if (!EFI_ERROR (Status)) {

-      AddressingMode64 = TRUE;

-      DescSize = sizeof (SD_MMC_HC_ADMA_64_DESC_LINE);

-    }

-  }

-  //

   // Check for valid ranges in 32bit ADMA Descriptor Table

   //

-  if (!AddressingMode64 &&

+  if ((Trb->Mode == SdMmcAdma32bMode) &&

       ((Data >= 0x100000000ul) || ((Data + DataLen) > 0x100000000ul))) {

     return EFI_INVALID_PARAMETER;

   }

   //

   // Check address field alignment

   //

-  if (AddressingMode64) {

+  if (Trb->Mode != SdMmcAdma32bMode) {

     //

     // Address field shall be set on 64-bit boundary (Lower 3-bit is always set to 0)

     //

@@ -1445,13 +1442,19 @@ BuildAdmaDescTable (
       DEBUG ((DEBUG_INFO, "The buffer [0x%x] to construct ADMA desc is not aligned to 4 bytes boundary!\n", Data));

     }

   }

+

   //

-  // Detect whether 26bit data length is supported.

+  // Configure 64b ADMA.

   //

-  Status = SdMmcHcCheckMmioSet(PciIo, Trb->Slot, SD_MMC_HC_HOST_CTRL2, sizeof(UINT16),

-                               SD_MMC_HC_26_DATA_LEN_ADMA_EN, SD_MMC_HC_26_DATA_LEN_ADMA_EN);

-  if (!EFI_ERROR (Status)) {

-    DataLength26 = TRUE;

+  if (Trb->Mode == SdMmcAdma64bV3Mode) {

+    DescSize = sizeof (SD_MMC_HC_ADMA_64_V3_DESC_LINE);

+  }else if (Trb->Mode == SdMmcAdma64bV4Mode) {

+    DescSize = sizeof (SD_MMC_HC_ADMA_64_V4_DESC_LINE);

+  }

+  //

+  // Configure 26b data length.

+  //

+  if (Trb->AdmaLengthMode == SdMmcAdmaLen26b) {

     AdmaMaxDataPerLine = ADMA_MAX_DATA_PER_LINE_26B;

   }

 

@@ -1492,7 +1495,7 @@ BuildAdmaDescTable (
     return EFI_OUT_OF_RESOURCES;

   }

 

-  if ((!AddressingMode64) &&

+  if ((Trb->Mode == SdMmcAdma32bMode) &&

       (UINT64)(UINTN)Trb->AdmaDescPhy > 0x100000000ul) {

     //

     // The ADMA doesn't support 64bit addressing.

@@ -1511,19 +1514,20 @@ BuildAdmaDescTable (
 

   Remaining = DataLen;

   Address   = Data;

-  if (!AddressingMode64) {

+  if (Trb->Mode == SdMmcAdma32bMode) {

     Trb->Adma32Desc = AdmaDesc;

-    Trb->Adma64Desc = NULL;

+  } else if (Trb->Mode == SdMmcAdma64bV3Mode) {

+    Trb->Adma64V3Desc = AdmaDesc;

   } else {

-    Trb->Adma64Desc = AdmaDesc;

-    Trb->Adma32Desc = NULL;

+    Trb->Adma64V4Desc = AdmaDesc;

   }

+

   for (Index = 0; Index < Entries; Index++) {

-    if (!AddressingMode64) {

+    if (Trb->Mode == SdMmcAdma32bMode) {

       if (Remaining <= AdmaMaxDataPerLine) {

         Trb->Adma32Desc[Index].Valid = 1;

         Trb->Adma32Desc[Index].Act   = 2;

-        if (DataLength26) {

+        if (Trb->AdmaLengthMode == SdMmcAdmaLen26b) {

           Trb->Adma32Desc[Index].UpperLength = (UINT16)RShiftU64 (Remaining, 16);

         }

         Trb->Adma32Desc[Index].LowerLength = (UINT16)(Remaining & MAX_UINT16);

@@ -1532,32 +1536,53 @@ BuildAdmaDescTable (
       } else {

         Trb->Adma32Desc[Index].Valid = 1;

         Trb->Adma32Desc[Index].Act   = 2;

-        if (DataLength26) {

+        if (Trb->AdmaLengthMode == SdMmcAdmaLen26b) {

           Trb->Adma32Desc[Index].UpperLength  = 0;

         }

         Trb->Adma32Desc[Index].LowerLength  = 0;

         Trb->Adma32Desc[Index].Address = (UINT32)Address;

       }

+    } else if (Trb->Mode == SdMmcAdma64bV3Mode) {

+      if (Remaining <= AdmaMaxDataPerLine) {

+        Trb->Adma64V3Desc[Index].Valid = 1;

+        Trb->Adma64V3Desc[Index].Act   = 2;

+        if (Trb->AdmaLengthMode == SdMmcAdmaLen26b) {

+          Trb->Adma64V3Desc[Index].UpperLength  = (UINT16)RShiftU64 (Remaining, 16);

+        }

+        Trb->Adma64V3Desc[Index].LowerLength  = (UINT16)(Remaining & MAX_UINT16);

+        Trb->Adma64V3Desc[Index].LowerAddress = (UINT32)Address;

+        Trb->Adma64V3Desc[Index].UpperAddress = (UINT32)RShiftU64 (Address, 32);

+        break;

+      } else {

+        Trb->Adma64V3Desc[Index].Valid = 1;

+        Trb->Adma64V3Desc[Index].Act   = 2;

+        if (Trb->AdmaLengthMode == SdMmcAdmaLen26b) {

+          Trb->Adma64V3Desc[Index].UpperLength  = 0;

+        }

+        Trb->Adma64V3Desc[Index].LowerLength  = 0;

+        Trb->Adma64V3Desc[Index].LowerAddress = (UINT32)Address;

+        Trb->Adma64V3Desc[Index].UpperAddress = (UINT32)RShiftU64 (Address, 32);

+      }

     } else {

       if (Remaining <= AdmaMaxDataPerLine) {

-        Trb->Adma64Desc[Index].Valid = 1;

-        Trb->Adma64Desc[Index].Act   = 2;

-        if (DataLength26) {

-          Trb->Adma64Desc[Index].UpperLength  = (UINT16)RShiftU64 (Remaining, 16);

+        Trb->Adma64V4Desc[Index].Valid = 1;

+        Trb->Adma64V4Desc[Index].Act   = 2;

+        if (Trb->AdmaLengthMode == SdMmcAdmaLen26b) {

+          Trb->Adma64V4Desc[Index].UpperLength  = (UINT16)RShiftU64 (Remaining, 16);

         }

-        Trb->Adma64Desc[Index].LowerLength  = (UINT16)(Remaining & MAX_UINT16);

-        Trb->Adma64Desc[Index].LowerAddress = (UINT32)Address;

-        Trb->Adma64Desc[Index].UpperAddress = (UINT32)RShiftU64 (Address, 32);

+        Trb->Adma64V4Desc[Index].LowerLength  = (UINT16)(Remaining & MAX_UINT16);

+        Trb->Adma64V4Desc[Index].LowerAddress = (UINT32)Address;

+        Trb->Adma64V4Desc[Index].UpperAddress = (UINT32)RShiftU64 (Address, 32);

         break;

       } else {

-        Trb->Adma64Desc[Index].Valid = 1;

-        Trb->Adma64Desc[Index].Act   = 2;

-        if (DataLength26) {

-          Trb->Adma64Desc[Index].UpperLength  = 0;

+        Trb->Adma64V4Desc[Index].Valid = 1;

+        Trb->Adma64V4Desc[Index].Act   = 2;

+        if (Trb->AdmaLengthMode == SdMmcAdmaLen26b) {

+          Trb->Adma64V4Desc[Index].UpperLength  = 0;

         }

-        Trb->Adma64Desc[Index].LowerLength  = 0;

-        Trb->Adma64Desc[Index].LowerAddress = (UINT32)Address;

-        Trb->Adma64Desc[Index].UpperAddress = (UINT32)RShiftU64 (Address, 32);

+        Trb->Adma64V4Desc[Index].LowerLength  = 0;

+        Trb->Adma64V4Desc[Index].LowerAddress = (UINT32)Address;

+        Trb->Adma64V4Desc[Index].UpperAddress = (UINT32)RShiftU64 (Address, 32);

       }

     }

 

@@ -1568,7 +1593,13 @@ BuildAdmaDescTable (
   //

   // Set the last descriptor line as end of descriptor table

   //

-  AddressingMode64 ? (Trb->Adma64Desc[Index].End = 1) : (Trb->Adma32Desc[Index].End = 1);

+  if (Trb->Mode == SdMmcAdma32bMode) {

+    Trb->Adma32Desc[Index].End = 1;

+  } else if (Trb->Mode == SdMmcAdma64bV3Mode) {

+    Trb->Adma64V3Desc[Index].End = 1;

+  } else {

+    Trb->Adma64V4Desc[Index].End = 1;

+  }

   return EFI_SUCCESS;

 }

 

@@ -1665,7 +1696,20 @@ SdMmcCreateTrb (
     if (Trb->DataLen == 0) {

       Trb->Mode = SdMmcNoData;

     } else if (Private->Capability[Slot].Adma2 != 0) {

-      Trb->Mode = SdMmcAdmaMode;

+      Trb->Mode = SdMmcAdma32bMode;

+      Trb->AdmaLengthMode = SdMmcAdmaLen16b;

+      if ((Private->ControllerVersion[Slot] == SD_MMC_HC_CTRL_VER_300) &&

+          (Private->Capability[Slot].SysBus64V3 == 1)) {

+        Trb->Mode = SdMmcAdma64bV3Mode;

+      } else if (((Private->ControllerVersion[Slot] == SD_MMC_HC_CTRL_VER_400) &&

+                  (Private->Capability[Slot].SysBus64V3 == 1)) ||

+                 ((Private->ControllerVersion[Slot] >= SD_MMC_HC_CTRL_VER_410) &&

+                  (Private->Capability[Slot].SysBus64V4 == 1))) {

+        Trb->Mode = SdMmcAdma64bV4Mode;

+      }

+      if (Private->ControllerVersion[Slot] >= SD_MMC_HC_CTRL_VER_410) {

+        Trb->AdmaLengthMode = SdMmcAdmaLen26b;

+      }

       Status = BuildAdmaDescTable (Trb, Private->ControllerVersion[Slot]);

       if (EFI_ERROR (Status)) {

         PciIo->Unmap (PciIo, Trb->DataMap);

@@ -1719,11 +1763,18 @@ SdMmcFreeTrb (
       Trb->Adma32Desc

     );

   }

-  if (Trb->Adma64Desc != NULL) {

+  if (Trb->Adma64V3Desc != NULL) {

+    PciIo->FreeBuffer (

+      PciIo,

+      Trb->AdmaPages,

+      Trb->Adma64V3Desc

+    );

+  }

+  if (Trb->Adma64V4Desc != NULL) {

     PciIo->FreeBuffer (

       PciIo,

       Trb->AdmaPages,

-      Trb->Adma64Desc

+      Trb->Adma64V4Desc

     );

   }

   if (Trb->DataMap != NULL) {

@@ -1891,27 +1942,35 @@ SdMmcExecTrb (
   if (EFI_ERROR (Status)) {

     return Status;

   }

+

+  if (Private->ControllerVersion[Trb->Slot] >= SD_MMC_HC_CTRL_VER_400) {

+    Status = SdMmcHcCheckMmioSet(PciIo, Trb->Slot, SD_MMC_HC_HOST_CTRL2, sizeof(UINT16),

+                                 SD_MMC_HC_64_ADDR_EN, SD_MMC_HC_64_ADDR_EN);

+    if (!EFI_ERROR (Status)) {

+      AddressingMode64 = TRUE;

+    }

+  }

+

   //

   // Set Host Control 1 register DMA Select field

   //

-  if (Trb->Mode == SdMmcAdmaMode) {

+  if ((Trb->Mode == SdMmcAdma32bMode) ||

+      (Trb->Mode == SdMmcAdma64bV4Mode)) {

     HostCtrl1 = BIT4;

     Status = SdMmcHcOrMmio (PciIo, Trb->Slot, SD_MMC_HC_HOST_CTRL1, sizeof (HostCtrl1), &HostCtrl1);

     if (EFI_ERROR (Status)) {

       return Status;

     }

+  } else if (Trb->Mode == SdMmcAdma64bV3Mode) {

+    HostCtrl1 = BIT4|BIT3;

+    Status = SdMmcHcOrMmio (PciIo, Trb->Slot, SD_MMC_HC_HOST_CTRL1, sizeof (HostCtrl1), &HostCtrl1);

+    if (EFI_ERROR (Status)) {

+      return Status;

+    }

   }

 

   SdMmcHcLedOnOff (PciIo, Trb->Slot, TRUE);

 

-  if (Private->ControllerVersion[Trb->Slot] >= SD_MMC_HC_CTRL_VER_400) {

-    Status = SdMmcHcCheckMmioSet(PciIo, Trb->Slot, SD_MMC_HC_HOST_CTRL2, sizeof(UINT16),

-                                 SD_MMC_HC_V4_EN|SD_MMC_HC_64_ADDR_EN, SD_MMC_HC_V4_EN|SD_MMC_HC_64_ADDR_EN);

-    if (!EFI_ERROR (Status)) {

-      AddressingMode64 = TRUE;

-    }

-  }

-

   if (Trb->Mode == SdMmcSdmaMode) {

     if ((!AddressingMode64) &&

         ((UINT64)(UINTN)Trb->DataPhy >= 0x100000000ul)) {

@@ -1929,7 +1988,9 @@ SdMmcExecTrb (
     if (EFI_ERROR (Status)) {

       return Status;

     }

-  } else if (Trb->Mode == SdMmcAdmaMode) {

+  } else if ((Trb->Mode == SdMmcAdma32bMode) ||

+             (Trb->Mode == SdMmcAdma64bV3Mode) ||

+             (Trb->Mode == SdMmcAdma64bV4Mode)) {

     AdmaAddr = (UINT64)(UINTN)Trb->AdmaDescPhy;

     Status   = SdMmcHcRwMmio (PciIo, Trb->Slot, SD_MMC_HC_ADMA_SYS_ADDR, FALSE, sizeof (AdmaAddr), &AdmaAddr);

     if (EFI_ERROR (Status)) {

diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.h b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.h
index d157f2c7cd..c8efccbe29 100644
--- a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.h
+++ b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.h
@@ -2,7 +2,7 @@
 

   Provides some data structure definitions used by the SD/MMC host controller driver.

 

-Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.

+Copyright (c) 2018-2019, NVIDIA CORPORATION. All rights reserved.

 Copyright (c) 2015, 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

@@ -80,16 +80,25 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 

 //

 // The transfer modes supported by SD Host Controller

-// Simplified Spec 3.0 Table 1-2

 //

 typedef enum {

   SdMmcNoData,

   SdMmcPioMode,

   SdMmcSdmaMode,

-  SdMmcAdmaMode

+  SdMmcAdma32bMode,

+  SdMmcAdma64bV3Mode,

+  SdMmcAdma64bV4Mode

 } SD_MMC_HC_TRANSFER_MODE;

 

 //

+// The ADMA transfer lengths supported by SD Host Controller

+//

+typedef enum {

+  SdMmcAdmaLen16b,

+  SdMmcAdmaLen26b

+} SD_MMC_HC_ADMA_LENGTH_MODE;

+

+//

 // The maximum data length of each descriptor line

 //

 #define ADMA_MAX_DATA_PER_LINE_16B     SIZE_64KB

@@ -122,8 +131,20 @@ typedef struct {
   UINT32 LowerLength:16;

   UINT32 LowerAddress;

   UINT32 UpperAddress;

+} SD_MMC_HC_ADMA_64_V3_DESC_LINE;

+

+typedef struct {

+  UINT32 Valid:1;

+  UINT32 End:1;

+  UINT32 Int:1;

+  UINT32 Reserved:1;

+  UINT32 Act:2;

+  UINT32 UpperLength:10;

+  UINT32 LowerLength:16;

+  UINT32 LowerAddress;

+  UINT32 UpperAddress;

   UINT32 Reserved1;

-} SD_MMC_HC_ADMA_64_DESC_LINE;

+} SD_MMC_HC_ADMA_64_V4_DESC_LINE;

 

 #define SD_MMC_SDMA_BOUNDARY          512 * 1024

 #define SD_MMC_SDMA_ROUND_UP(x, n)    (((x) + n) & ~(n - 1))