Re: [U-Boot-Users] NAND ECC: S3C2410
From: Markus Klotzb�cher mk-lists@creamnet.de I can't see any ecc specific code in cmd_nand.c. Most likely you should not have to change anything in this file.
In 1.1.4 there's a bunch of code in cmd_nand.c under #ifdef MTD_NAND_ECC (e.g., the nand_correct_data() routine) which assumes 3 ECC bytes for each 256 byte block, and 6 bytes of ECC stored overall per 512 byte block. The Samsung uses a scheme with 3 bytes per 512 byte block, leading me to believe the current code is specific to some other chip.
sf
Dear Steve,
in message 13367763.1146500720178.JavaMail.root@elwamui-ovcar.atl.sa.earthlink.net you wrote:
From: Markus Klotzbücher mk-lists@creamnet.de I can't see any ecc specific code in cmd_nand.c. Most likely you should not have to change anything in this file.
In 1.1.4 there's a bunch of code in cmd_nand.c under #ifdef MTD_NAND_ECC (e.g., the nand_correct_data() routine) which assumes 3 ECC bytes for each 256
You are referring to obsolete code.
byte block, and 6 bytes of ECC stored overall per 512 byte block. The Samsung uses a scheme with 3 bytes per 512 byte block, leading me to believe the current code is specific to some other chip.
All this stuff has been moved into what is now called the "legacy NAND driver" code, which will be removed sometime (hopefully) soon (as soon as board maintainers convert5ed hteir boards to use the new NAND code).
Please get a current version of U-Boot (top of repository) and use this for any recent work.
Best regards,
Wolfgang Denk
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Wolfgang Denk