mtd: fsl_elbc_nand: fix jffs2 problem after NAND-flash image record in u-boot
authorSergej.Stepanov@ids.de <Sergej.Stepanov@ids.de>
Tue, 23 Nov 2010 17:38:36 +0000 (18:38 +0100)
committerDavid Woodhouse <David.Woodhouse@intel.com>
Fri, 3 Dec 2010 16:34:24 +0000 (16:34 +0000)
commiteeda667a29698b9a4d16dce8979afc6f512f3c42
tree6699d43767e73a4010ab74371e93b96e9757a187
parenta7e93dcd9aacb3ef4acfcc4310577f3ae0741821
mtd: fsl_elbc_nand: fix jffs2 problem after NAND-flash image record in u-boot

This patch should fix the following problem:
 1. the  jffs2-image update in the u-boot was ok
 2. first restart and first mount of the NAND-flash-partition was also ok
 3. before the restart of controller there are no any activity on NAND-flash except of the jffs2_gcd_mtdX-process ...
 4. BUT after the second restart the NAND-flash-partition could not be really used after the second mount,
    dmesg filled with messages:
...
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x03ce0000: 0xc0ff instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x03d00000: 0xc0ff instead
....
Just for for info:
the behaviour observed on mpc8313-based board with the large-page NAND.
The only activity on NAND-flash was the garbage collector process, that looks for CLEANMARKER-nodes

As Scott said it was broken by commit 3ab8f2a2e7011c5e83363b42950757e46ef06824

Signed-off-by: Sergej Stepanov <Sergej.Stepanov@ids.de>
--

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
drivers/mtd/nand/fsl_elbc_nand.c