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-rw-r--r--Omap35xxPkg/MMCHSDxe/MMCHS.c359
1 files changed, 239 insertions, 120 deletions
diff --git a/Omap35xxPkg/MMCHSDxe/MMCHS.c b/Omap35xxPkg/MMCHSDxe/MMCHS.c
index ccfaf5c699..9ddb48a65b 100644
--- a/Omap35xxPkg/MMCHSDxe/MMCHS.c
+++ b/Omap35xxPkg/MMCHSDxe/MMCHS.c
@@ -745,7 +745,7 @@ DmaBlocks (
UINTN CmdInterruptEnable;
UINTN CmdArgument;
VOID *BufferMap;
- EFI_PHYSICAL_ADDRESS BufferAddress;
+ EFI_PHYSICAL_ADDRESS BufferAddress;
OMAP_DMA4 Dma4;
DMA_MAP_OPERATION DmaOperation;
EFI_STATUS MmcStatus;
@@ -760,16 +760,26 @@ CpuDeadLoop ();
}
ZeroMem (&DmaOperation, sizeof (DMA_MAP_OPERATION));
-
- Dma4.DataType = 2; // DMA4_CSDPi[1:0] 32-bit elements from MMCHS_DATA
- Dma4.SourceEndiansim = 0; // DMA4_CSDPi[21]
- Dma4.DestinationEndianism = 0; // DMA4_CSDPi[19]
- Dma4.SourcePacked = 0; // DMA4_CSDPi[6]
- Dma4.DestinationPacked = 0; // DMA4_CSDPi[13]
- Dma4.NumberOfElementPerFrame = This->Media->BlockSize/4; // DMA4_CENi (TRM 4K is optimum value)
- Dma4.NumberOfFramePerTransferBlock = BlockCount; // DMA4_CFNi
- Dma4.ReadPriority = 0; // DMA4_CCRi[6] Low priority read
- Dma4.WritePriority = 0; // DMA4_CCRi[23] Prefetech disabled
+
+
+ Dma4.DataType = 2; // DMA4_CSDPi[1:0] 32-bit elements from MMCHS_DATA
+
+ Dma4.SourceEndiansim = 0; // DMA4_CSDPi[21]
+
+ Dma4.DestinationEndianism = 0; // DMA4_CSDPi[19]
+
+ Dma4.SourcePacked = 0; // DMA4_CSDPi[6]
+
+ Dma4.DestinationPacked = 0; // DMA4_CSDPi[13]
+
+ Dma4.NumberOfElementPerFrame = This->Media->BlockSize/4; // DMA4_CENi (TRM 4K is optimum value)
+
+ Dma4.NumberOfFramePerTransferBlock = BlockCount; // DMA4_CFNi
+
+ Dma4.ReadPriority = 0; // DMA4_CCRi[6] Low priority read
+
+ Dma4.WritePriority = 0; // DMA4_CCRi[23] Prefetech disabled
+
//Populate the command information based on the operation type.
if (OperationType == READ) {
@@ -777,20 +787,34 @@ CpuDeadLoop ();
CmdInterruptEnable = CMD18_INT_EN;
DmaOperation = MapOperationBusMasterCommonBuffer;
- Dma4.ReadPortAccessType =0 ; // DMA4_CSDPi[8:7] Can not burst MMCHS_DATA reg
- Dma4.WritePortAccessType = 3; // DMA4_CSDPi[15:14] Memory burst 16x32
- Dma4.WriteMode = 1; // DMA4_CSDPi[17:16] Write posted
-
- Dma4.SourceStartAddress = MMCHS_DATA; // DMA4_CSSAi
- Dma4.DestinationStartAddress = (UINT32)BufferAddress; // DMA4_CDSAi
- Dma4.SourceElementIndex = 1; // DMA4_CSEi
- Dma4.SourceFrameIndex = 0x200; // DMA4_CSFi
- Dma4.DestinationElementIndex = 1; // DMA4_CDEi
- Dma4.DestinationFrameIndex = 0; // DMA4_CDFi
-
- Dma4.ReadPortAccessMode = 0; // DMA4_CCRi[13:12] Always read MMCHS_DATA
- Dma4.WritePortAccessMode = 1; // DMA4_CCRi[15:14] Post increment memory address
- Dma4.ReadRequestNumber = 0x1e; // DMA4_CCRi[4:0] Syncro with MMCA_DMA_RX (61)
+ Dma4.ReadPortAccessType =0 ; // DMA4_CSDPi[8:7] Can not burst MMCHS_DATA reg
+
+ Dma4.WritePortAccessType = 3; // DMA4_CSDPi[15:14] Memory burst 16x32
+
+ Dma4.WriteMode = 1; // DMA4_CSDPi[17:16] Write posted
+
+
+
+ Dma4.SourceStartAddress = MMCHS_DATA; // DMA4_CSSAi
+
+ Dma4.DestinationStartAddress = (UINT32)BufferAddress; // DMA4_CDSAi
+
+ Dma4.SourceElementIndex = 1; // DMA4_CSEi
+
+ Dma4.SourceFrameIndex = 0x200; // DMA4_CSFi
+
+ Dma4.DestinationElementIndex = 1; // DMA4_CDEi
+
+ Dma4.DestinationFrameIndex = 0; // DMA4_CDFi
+
+
+
+ Dma4.ReadPortAccessMode = 0; // DMA4_CCRi[13:12] Always read MMCHS_DATA
+
+ Dma4.WritePortAccessMode = 1; // DMA4_CCRi[15:14] Post increment memory address
+
+ Dma4.ReadRequestNumber = 0x1e; // DMA4_CCRi[4:0] Syncro with MMCA_DMA_RX (61)
+
Dma4.WriteRequestNumber = 1; // DMA4_CCRi[20:19] Syncro upper 0x3e == 62 (one based)
} else if (OperationType == WRITE) {
@@ -798,20 +822,34 @@ CpuDeadLoop ();
CmdInterruptEnable = CMD25_INT_EN;
DmaOperation = MapOperationBusMasterRead;
- Dma4.ReadPortAccessType = 3; // DMA4_CSDPi[8:7] Memory burst 16x32
- Dma4.WritePortAccessType = 0; // DMA4_CSDPi[15:14] Can not burst MMCHS_DATA reg
- Dma4.WriteMode = 1; // DMA4_CSDPi[17:16] Write posted ???
-
- Dma4.SourceStartAddress = (UINT32)BufferAddress; // DMA4_CSSAi
- Dma4.DestinationStartAddress = MMCHS_DATA; // DMA4_CDSAi
- Dma4.SourceElementIndex = 1; // DMA4_CSEi
- Dma4.SourceFrameIndex = 0x200; // DMA4_CSFi
- Dma4.DestinationElementIndex = 1; // DMA4_CDEi
- Dma4.DestinationFrameIndex = 0; // DMA4_CDFi
-
- Dma4.ReadPortAccessMode = 1; // DMA4_CCRi[13:12] Post increment memory address
- Dma4.WritePortAccessMode = 0; // DMA4_CCRi[15:14] Always write MMCHS_DATA
- Dma4.ReadRequestNumber = 0x1d; // DMA4_CCRi[4:0] Syncro with MMCA_DMA_TX (60)
+ Dma4.ReadPortAccessType = 3; // DMA4_CSDPi[8:7] Memory burst 16x32
+
+ Dma4.WritePortAccessType = 0; // DMA4_CSDPi[15:14] Can not burst MMCHS_DATA reg
+
+ Dma4.WriteMode = 1; // DMA4_CSDPi[17:16] Write posted ???
+
+
+
+ Dma4.SourceStartAddress = (UINT32)BufferAddress; // DMA4_CSSAi
+
+ Dma4.DestinationStartAddress = MMCHS_DATA; // DMA4_CDSAi
+
+ Dma4.SourceElementIndex = 1; // DMA4_CSEi
+
+ Dma4.SourceFrameIndex = 0x200; // DMA4_CSFi
+
+ Dma4.DestinationElementIndex = 1; // DMA4_CDEi
+
+ Dma4.DestinationFrameIndex = 0; // DMA4_CDFi
+
+
+
+ Dma4.ReadPortAccessMode = 1; // DMA4_CCRi[13:12] Post increment memory address
+
+ Dma4.WritePortAccessMode = 0; // DMA4_CCRi[15:14] Always write MMCHS_DATA
+
+ Dma4.ReadRequestNumber = 0x1d; // DMA4_CCRi[4:0] Syncro with MMCA_DMA_TX (60)
+
Dma4.WriteRequestNumber = 1; // DMA4_CCRi[20:19] Syncro upper 0x3d == 61 (one based)
} else {
@@ -1087,8 +1125,10 @@ SdReadWrite (
UINTN BlockCount;
UINTN BytesToBeTranferedThisPass = 0;
UINTN BytesRemainingToBeTransfered;
- EFI_TPL OldTpl;
- BOOLEAN Update;
+ EFI_TPL OldTpl;
+
+ BOOLEAN Update;
+
Update = FALSE;
@@ -1111,12 +1151,18 @@ SdReadWrite (
if (Update) {
DEBUG ((EFI_D_INFO, "SD Card ReinstallProtocolInterface ()\n"));
- gBS->ReinstallProtocolInterface (
- gImageHandle,
- &gEfiBlockIoProtocolGuid,
- &gBlockIo,
- &gBlockIo
- );
+ gBS->ReinstallProtocolInterface (
+
+ gImageHandle,
+
+ &gEfiBlockIoProtocolGuid,
+
+ &gBlockIo,
+
+ &gBlockIo
+
+ );
+
}
if (EFI_ERROR (Status)) {
@@ -1179,23 +1225,37 @@ SdReadWrite (
Buffer = (UINT8 *)Buffer + This->Media->BlockSize;
}
-DoneRestoreTPL:
- gBS->RestoreTPL (OldTpl);
-Done:
- return Status;
+DoneRestoreTPL:
+
+ gBS->RestoreTPL (OldTpl);
+
+Done:
+
+ return Status;
+
}
-/**
- Reset the Block Device.
-
- @param This Indicates a pointer to the calling context.
- @param ExtendedVerification Driver may perform diagnostics on reset.
-
- @retval EFI_SUCCESS The device was reset.
- @retval EFI_DEVICE_ERROR The device is not functioning properly and could
- not be reset.
-
+/**
+
+ Reset the Block Device.
+
+
+
+ @param This Indicates a pointer to the calling context.
+
+ @param ExtendedVerification Driver may perform diagnostics on reset.
+
+
+
+ @retval EFI_SUCCESS The device was reset.
+
+ @retval EFI_DEVICE_ERROR The device is not functioning properly and could
+
+ not be reset.
+
+
+
**/
EFI_STATUS
EFIAPI
@@ -1208,23 +1268,40 @@ MMCHSReset (
}
-/**
- Read BufferSize bytes from Lba into Buffer.
-
- @param This Indicates a pointer to the calling context.
- @param MediaId Id of the media, changes every time the media is replaced.
- @param Lba The starting Logical Block Address to read from
- @param BufferSize Size of Buffer, must be a multiple of device block size.
- @param Buffer A pointer to the destination buffer for the data. The caller is
- responsible for either having implicit or explicit ownership of the buffer.
-
- @retval EFI_SUCCESS The data was read correctly from the device.
- @retval EFI_DEVICE_ERROR The device reported an error while performing the read.
- @retval EFI_NO_MEDIA There is no media in the device.
- @retval EFI_MEDIA_CHANGED The MediaId does not matched the current device.
- @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.
- @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
- or the buffer is not on proper alignment.
+/**
+
+ Read BufferSize bytes from Lba into Buffer.
+
+
+
+ @param This Indicates a pointer to the calling context.
+
+ @param MediaId Id of the media, changes every time the media is replaced.
+
+ @param Lba The starting Logical Block Address to read from
+
+ @param BufferSize Size of Buffer, must be a multiple of device block size.
+
+ @param Buffer A pointer to the destination buffer for the data. The caller is
+
+ responsible for either having implicit or explicit ownership of the buffer.
+
+
+
+ @retval EFI_SUCCESS The data was read correctly from the device.
+
+ @retval EFI_DEVICE_ERROR The device reported an error while performing the read.
+
+ @retval EFI_NO_MEDIA There is no media in the device.
+
+ @retval EFI_MEDIA_CHANGED The MediaId does not matched the current device.
+
+ @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.
+
+ @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
+
+ or the buffer is not on proper alignment.
+
EFI_STATUS
**/
@@ -1243,29 +1320,49 @@ MMCHSReadBlocks (
//Perform Read operation.
Status = SdReadWrite (This, (UINTN)Lba, Buffer, BufferSize, READ);
- return Status;
+ return Status;
+
}
-/**
- Write BufferSize bytes from Lba into Buffer.
-
- @param This Indicates a pointer to the calling context.
- @param MediaId The media ID that the write request is for.
- @param Lba The starting logical block address to be written. The caller is
- responsible for writing to only legitimate locations.
- @param BufferSize Size of Buffer, must be a multiple of device block size.
- @param Buffer A pointer to the source buffer for the data.
-
- @retval EFI_SUCCESS The data was written correctly to the device.
- @retval EFI_WRITE_PROTECTED The device can not be written to.
- @retval EFI_DEVICE_ERROR The device reported an error while performing the write.
- @retval EFI_NO_MEDIA There is no media in the device.
- @retval EFI_MEDIA_CHNAGED The MediaId does not matched the current device.
- @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.
- @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
- or the buffer is not on proper alignment.
-
+/**
+
+ Write BufferSize bytes from Lba into Buffer.
+
+
+
+ @param This Indicates a pointer to the calling context.
+
+ @param MediaId The media ID that the write request is for.
+
+ @param Lba The starting logical block address to be written. The caller is
+
+ responsible for writing to only legitimate locations.
+
+ @param BufferSize Size of Buffer, must be a multiple of device block size.
+
+ @param Buffer A pointer to the source buffer for the data.
+
+
+
+ @retval EFI_SUCCESS The data was written correctly to the device.
+
+ @retval EFI_WRITE_PROTECTED The device can not be written to.
+
+ @retval EFI_DEVICE_ERROR The device reported an error while performing the write.
+
+ @retval EFI_NO_MEDIA There is no media in the device.
+
+ @retval EFI_MEDIA_CHNAGED The MediaId does not matched the current device.
+
+ @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.
+
+ @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
+
+ or the buffer is not on proper alignment.
+
+
+
**/
EFI_STATUS
EFIAPI
@@ -1281,20 +1378,31 @@ MMCHSWriteBlocks (
//Perform write operation.
Status = SdReadWrite (This, (UINTN)Lba, Buffer, BufferSize, WRITE);
-
- return Status;
+
+
+ return Status;
+
}
-/**
- Flush the Block Device.
-
- @param This Indicates a pointer to the calling context.
-
- @retval EFI_SUCCESS All outstanding data was written to the device
- @retval EFI_DEVICE_ERROR The device reported an error while writting back the data
- @retval EFI_NO_MEDIA There is no media in the device.
-
+/**
+
+ Flush the Block Device.
+
+
+
+ @param This Indicates a pointer to the calling context.
+
+
+
+ @retval EFI_SUCCESS All outstanding data was written to the device
+
+ @retval EFI_DEVICE_ERROR The device reported an error while writting back the data
+
+ @retval EFI_NO_MEDIA There is no media in the device.
+
+
+
**/
EFI_STATUS
EFIAPI
@@ -1316,17 +1424,28 @@ EFI_BLOCK_IO_PROTOCOL gBlockIo = {
};
-/**
- Timer callback to convert card present hardware into a boolean that indicates
- a media change event has happened. If you just check the GPIO you could see
- card 1 and then check again after card 1 was removed and card 2 was inserted
- and you would still see media present. Thus you need the timer tick to catch
- the toggle event.
-
- @param Event Event whose notification function is being invoked.
- @param Context The pointer to the notification function's context,
- which is implementation-dependent. Not used.
-
+/**
+
+ Timer callback to convert card present hardware into a boolean that indicates
+
+ a media change event has happened. If you just check the GPIO you could see
+
+ card 1 and then check again after card 1 was removed and card 2 was inserted
+
+ and you would still see media present. Thus you need the timer tick to catch
+
+ the toggle event.
+
+
+
+ @param Event Event whose notification function is being invoked.
+
+ @param Context The pointer to the notification function's context,
+
+ which is implementation-dependent. Not used.
+
+
+
**/
VOID
EFIAPI
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 07:07:43 +0000