Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux

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>

authored by

Sergej.Stepanov@ids.de and committed by
David Woodhouse
eeda667a a7e93dcd

+2
+2
drivers/mtd/nand/fsl_elbc_nand.c
··· 388 388 "page_addr: 0x%x, column: 0x%x.\n", 389 389 page_addr, column); 390 390 391 + elbc_fcm_ctrl->column = column; 392 + elbc_fcm_ctrl->oob = 0; 391 393 elbc_fcm_ctrl->use_mdr = 1; 392 394 393 395 fcr = (NAND_CMD_STATUS << FCR_CMD1_SHIFT) |