On Thursday 07 February 2008, Nikhil Gautam wrote:
I am trying to boot my board which is based on Sequoia 440EPX. The only difference between my board and the reference board is that I have a 1 Gb NAND flash ( NAND01GW3B2A) instead of 256Mb flash present on reference board.
In U-boot I have changed the board configuration file to reflect correct specs.
- Now the NAND chip has to be defined (no autodetection used!)
*/ #define CFG_NAND_PAGE_SIZE (2048) /* NAND chip page size */ #define CFG_NAND_BLOCK_SIZE (128 << 10) /* NAND chip block size */ #define CFG_NAND_PAGE_COUNT (64) /* NAND chip page count */ #define CFG_NAND_BAD_BLOCK_POS (5) /* Location of bad block marker */ #define CFG_NAND_4_ADDR_CYCLE /* Fourth addr used (>32MB) */
I have also changed the eeprom configuration word to 0x87788252 0x0947D010 0xA0A82358 0x0D050000
Is there any other place where some NAND configuration is defined?
Could be that nand_spl/nand_boot.c needs to be changed to support booting from 2k page sized devices too. It was only tested on 512 byte page devices till now.
I can only recommend to debug using an BDI2000. But you have probably already realized, that NAND booting debugging is not that easy.
Best regards, Stefan
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