[U-Boot-Users] Big Block NAND, JFFS2, and Me

[U-Boot-Users] Big Block NAND, JFFS2, and Me

[Chris Williams]

Howdy.

The board I am porting to uses Samsung's K9F1G08U0M NAND--which it 
appears is a "Big Block NAND" chip and non-standard. I've tried doing 
some general fiddling with the macros in the NAND, Flash, and JFFS2 
segments of the code--which has gotten NAND and the generic Flash 
commands working, but the JFFS2 code seems to have problems.
I researched this a bit, and it seems that Samsung has their own 
solution, RFS, which they say should used with NAND chips with page 
sizes more than 512 bytes (ours is 2048.) We are currently contacting 
the board manufacturer to see about receiving the RFS code for U-Boot 
and Linux, but if it ends up that we cannot receive this code, then I 
would like to ask if anyone knows whether the current U-Boot JFFS2 code 
should be able to work with big block NAND (and I just need to fiddle 
with it more), or if I will need to essentially create my own JFFS2 
handler? I don't currently have an adequate understanding of JFFS2 or 
flash memory to determine what possible issues there are between 
different chip formats.

Thank you,
Chris Williams