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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 3ab8f2a2e7

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

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Sergej.Stepanov@ids.de 2010-11-23 18:38:36 +01:00 committed by David Woodhouse
parent a7e93dcd9a
commit eeda667a29
1 changed files with 2 additions and 0 deletions
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2
drivers/mtd/nand/fsl_elbc_nand.c
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@ -388,6 +388,8 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
"page_addr: 0x%x, column: 0x%x.\n",
page_addr, column);
elbc_fcm_ctrl->column = column;
elbc_fcm_ctrl->oob = 0;
elbc_fcm_ctrl->use_mdr = 1;
fcr = (NAND_CMD_STATUS << FCR_CMD1_SHIFT) |