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POiMX6Q NAND Boot issue in WinCE
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  1. POiMX6Q NAND Boot issue in WinCE
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    copied!<p>I'm trying to boot <code>eboot.nb0</code> from NAND. (Micron, <code>MT29F4G08ABBDA</code>) in WinCE7. Processor: <code>i.MX6Q</code></p> <p>I have successfully booted <code>u-boot.bin</code> from NAND using <code>kobs-ng tool</code> in linux. Also, if i use modified <code>eboot.nb0</code> instead of <code>u-boot.bin</code> in <code>kobs</code>, it is booting without any problem.</p> <p>But when i use <code>MFGTool</code> (in WinCE) for flashing <code>eboot.nb0</code>, it is not booting.</p> <p>Following is the nanddump output when i am using <code>kobs</code> (linux) for flashing:</p> <p>FCB:</p> <pre><code>0x00000000: 00 00 00 00 00 00 00 00 00 00 00 00 cf fc ff ff 0x00000010: 46 43 42 20 00 00 00 01 50 3c 19 06 00 00 00 00 0x00000020: 00 08 00 00 40 08 00 00 40 00 00 00 00 00 00 00 0x00000030: 00 00 00 00 00 00 00 00 04 00 00 00 00 02 00 00 0x00000040: 00 02 00 00 04 00 00 00 0a 00 00 00 03 00 00 00 0x00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x00000070: 00 00 00 00 00 02 00 00 00 0b 00 00 01 01 00 00 0x00000080: 01 01 00 00 00 01 00 00 cf 07 00 00 00 00 00 00 0x00000090: 00 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x000000a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x000000b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x000000c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 </code></pre> <p>DBBT:</p> <pre><code>0x00080000: 00 ff ff ff ff ff ff ff ff ff 00 00 00 00 44 42 0x00080010: 42 54 00 00 00 01 00 00 00 00 00 00 00 00 00 00 0x00080020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x00080030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 </code></pre> <p>and <code>eboot.nb0</code> at Page 200.</p> <p>Here, why we are getting first 12 bytes as zeros? (<code>METADATA_SIZE</code> is set to 10). Why two additional zeros?</p> <p>In WinCE (Using MFGTool):</p> <p>FCB: [Metadata: <code>ff ff ff ff ff ff fe ff ff ff</code> ] (only 10 bytes of metadata)</p> <pre><code>75 b8 fe ff 46 43 42 20 0 0 0 1 50 3c 19 6 0 0 0 0 0 8 0 0 40 8 0 0 40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 2 0 0 0 2 0 0 4 0 0 0 a 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 d8 f9 8a d9 11 0 0 0 0 2 0 0 40 3 0 0 40 1 0 0 40 1 0 0 0 1 0 0 cf 7 0 0 0 0 0 0 0 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 44 cd ab ef d4 84 a9 ef ff ff ff ff ff ff ff ff ff ff ff ff </code></pre> <p>DBBT:</p> <pre><code>0 0 0 0 44 42 42 54 0 0 0 1 0 0 0 0 0 0 0 0 </code></pre> <p>and <code>eboot.nb0</code> at <code>200</code> page.</p> <p>Following is the nandtype info structure:</p> <pre><code>//MT29F4G08ABBDAHC { {NAND, 4096, 2048 * 64, 64, 2048}, //FlashInfo fi; {0x2C, 0xAC, 0x90, 0x15}, //BYTE NANDCode[NANDID_LENGTH] 3, //BYTE NumBlockCycles 5, //BYTE ChipAddrCycleNum 8, //BYTE DataWidth 1, //BYTE BBMarkNum {0}, //BYTE BBMarkPage 6, //BYTE StatusBusyBit 0, //BYTE StatusErrorBit 64, //WORD SpareDataLength 0x70, //BYTE CmdReadStatus 0x00, //BYTE CmdRead1 0x30, //BYTE CmdRead2 0x90, //BYTE CmdReadId 0xff, //BYTE CmdReset 0x80, //BYTE CmdWrite1 0x10, //BYTE CmdWrite2 0x60, //BYTE CmdErase1 0xD0, //BYTE CmdErase2 {80, 60, 25, 6} //NANDTiming timings } </code></pre> <p>Following is the BootBlock structure:</p> <pre><code>typedef struct _BootBlockStruct_t { UINT32 m_u32Checksum; //!&lt; First fingerprint in first byte. UINT32 m_u32FingerPrint; //!&lt; 2nd fingerprint at byte 4. UINT32 m_u32Version; //!&lt; 3rd fingerprint at byte 8. union { struct { NAND_Timing_t m_NANDTiming; //!&lt; Optimum timing parameters for Tas, Tds, Tdh in nsec. UINT32 m_u32Reserved; //mx28 needs a dword reservation UINT32 m_u32DataPageSize; //!&lt; 2048 for 2K pages, 4096 for 4K pages. UINT32 m_u32TotalPageSize; //!&lt; 2112 for 2K pages, 4314 for 4K pages. UINT32 m_u32SectorsPerBlock; //!&lt; Number of 2K sections per block. UINT32 m_u32NumberOfNANDs; //!&lt; Total Number of NANDs - not used by ROM. UINT32 m_u32TotalInternalDie; //!&lt; Number of separate chips in this NAND. UINT32 m_u32CellType; //!&lt; MLC or SLC. UINT32 m_u32EccBlockNEccType; //!&lt; Type of ECC, can be one of BCH-0-20 UINT32 m_u32EccBlock0Size; //!&lt; Number of bytes for Block0 - BCH UINT32 m_u32EccBlockNSize; //!&lt; Block size in bytes for all blocks other than Block0 - BCH UINT32 m_u32EccBlock0EccType; //!&lt; Ecc level for Block 0 - BCH UINT32 m_u32MetadataBytes; //!&lt; Metadata size - BCH UINT32 m_u32NumEccBlocksPerPage; //!&lt; Number of blocks per page for ROM use - BCH UINT32 m_u32EccBlockNEccLevelSDK; //!&lt; Type of ECC, can be one of BCH-0-20 UINT32 m_u32EccBlock0SizeSDK; //!&lt; Number of bytes for Block0 - BCH UINT32 m_u32EccBlockNSizeSDK; //!&lt; Block size in bytes for all blocks other than Block0 - BCH UINT32 m_u32EccBlock0EccLevelSDK; //!&lt; Ecc level for Block 0 - BCH UINT32 m_u32NumEccBlocksPerPageSDK; //!&lt; Number of blocks per page for SDK use - BCH UINT32 m_u32MetadataBytesSDK; //!&lt; Metadata size - BCH UINT32 m_u32EraseThreshold; //!&lt; To set into BCH_MODE register. UINT32 m_u32BootPatch; //!&lt; 0 for normal boot and 1 to load patch starting next to FCB. UINT32 m_u32PatchSectors; //!&lt; Size of patch in sectors. UINT32 m_u32Firmware1_startingSector; //!&lt; Firmware image starts on this sector. UINT32 m_u32Firmware2_startingSector; //!&lt; Secondary FW Image starting Sector. UINT32 m_u32SectorsInFirmware1; //!&lt; Number of sectors in firmware image. UINT32 m_u32SectorsInFirmware2; //!&lt; Number of sector in secondary FW image. UINT32 m_u32DBBTSearchAreaStartAddress;//!&lt; Page address where dbbt search area begins UINT32 m_u32BadBlockMarkerByte; //!&lt; Byte in page data that have manufacturer marked bad block marker, this will //!&lt; bw swapped with metadata[0] to complete page data. UINT32 m_u32BadBlockMarkerStartBit; //!&lt; For BCH ECC sizes other than 8 and 16 the bad block marker does not start //!&lt; at 0th bit of m_u32BadBlockMarkerByte. This field is used to get to the //!&lt; start bit of bad block marker byte with in m_u32BadBlockMarkerByte. UINT32 m_u32BBMarkerPhysicalOffset; //!&lt; FCB value that gives byte offset for bad block marker on physical NAND page. UINT32 m_u32BCHType; UINT32 m_u32TMTiming2_ReadLatency; UINT32 m_u32TMTiming2_PreambleDelay; UINT32 m_u32TMTiming2_CEDelay; UINT32 m_u32TMTiming2_PostambleDelay; UINT32 m_u32TMTiming2_CmdAddPause; UINT32 m_u32TMTiming2_DataPause; UINT32 m_u32TMSpeed; UINT32 m_u32TMTiming1_BusyTimeout; UINT32 m_u32DISBBM; UINT32 m_u32BBMark_spare_offset; UINT32 m_u32Onfi_sync_enable; UINT32 m_u32Onfi_sync_speed; UINT32 m_u32Onfi_syncNANDData; UINT32 m_u32DISBB_Search; } FCB_Block; struct { UINT32 m_u32NumberBB; //!&lt; # Bad Blocks stored in this table for NAND0. UINT32 m_u32Number2KPagesBB; //!&lt; Bad Blocks for NAND0 consume this # of 2K pages. } DBBT_Block; }; } BootBlockStruct_t; Following are the values i'm assigning (Which are equal to linux): FCB m_u32FingerPrint = 0x20424346 m_u32Version = 0x01000000 m_u32Reserved = 0 m_NANDTiming.m_u8DataSetup = 80 m_NANDTiming.m_u8DataHold = 60 m_NANDTiming.m_u8AddressSetup = 25 m_NANDTiming.m_u8DSAMPLE_TIME = 6 m_u32PageDataSize = 2048 m_u32TotalPageSize = 2112 m_u32SectorsPerBlock = 64 m_u32NumberOfNANDs = 0 m_u32TotalInternalDie = 0 m_u32CellType = 0 m_u32EccBlockNEccType = 4 m_u32EccBlock0Size = 512 m_u32EccBlockNSize = 512 m_u32EccBlock0EccType = 4 m_u32MetadataBytes = 10 m_u32NumEccBlocksPerPage = 3 m_u32EccBlockNEccLevelSDK = 0 m_u32EccBlock0SizeSDK = 0 m_u32EccBlockNSizeSDK = 0 m_u32EccBlock0EccLevelSDK = 0 m_u32NumEccBlocksPerPageSDK = 0 m_u32MetadataBytesSDK = 0 m_u32EraseThreshold = 0 m_u32Firmware1_startingPage = 512 m_u32Firmware2_startingPage = 2816 m_u32PagesInFirmware1 = 91 m_u32PagesInFirmware2 = 91 m_u32DBBTSearchAreaStartAddress = 256 m_u32BadBlockMarkerByte = 1999 m_u32BadBlockMarkerStartBit = 0 m_u32BBMarkerPhysicalOffset = 2048 m_u32BCHType = 0 m_NANDTMTiming.m_u32TMTiming2_ReadLatency = 0 m_NANDTMTiming.m_u32TMTiming2_PreambleDelay = 0 m_NANDTMTiming.m_u32TMTiming2_CEDelay = 0 m_NANDTMTiming.m_u32TMTiming2_PostambleDelay = 0 m_NANDTMTiming.m_u32TMTiming2_CmdAddPause = 0 m_NANDTMTiming.m_u32TMTiming2_DataPause = 0 m_NANDTMTiming.m_u32TMSpeed = 0 m_NANDTMTiming.m_u32TMTiming1_BusyTimeout = 0 m_u32DISBBM = 0 DBBT m_u32Checksum = 0x00000000 m_u32FingerPrint = 0x54424244 m_u32Version = 0x01000000 </code></pre> <p>In WinCE, it is not at all booting.</p> <p>Where is the mistake? If metadata size difference is the problem , how i can solve it? ( I have also tried by changing <code>METADATA_SIZE</code> = 12, which increases metadata size, but not booting.) What are those two extra bytes in linux (kobs)?</p>
 

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