* onenand_2x_program: optional or required ?
@ 2011-04-27 15:18 David Wagner
0 siblings, 0 replies; only message in thread
From: David Wagner @ 2011-04-27 15:18 UTC (permalink / raw)
To: linux-mtd
Hi,
I have a board with a 2-planes OneNAND chip and, for the purpose of a
tutorial, I'm trying to put a squashfs rootfs on it.
I noticed that when the kernel doesn't have the
CONFIG_MTD_ONENAND_2X_PROGRAM option, it prints error like:
[ 4.946594] SQUASHFS error: squashfs_read_data failed to read block
0x224366
[ 4.954437] SQUASHFS error: Unable to read metadata cache entry [224366]
[ 4.961791] SQUASHFS error: Unable to read inode 0xbf70504
and fails to mount the squashfs.
Can someone confirm or invalidate that this option really is necessary
when dealing with 2-planes onenands or is it merely meant to be an
improvement for supported chips ? Will flash-oriented filesystems also
have that problem w/o the option ?
I thought this option only affected write-functions but it seems it also
has an impact on reads.
Thanks
--
David Wagner, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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2011-04-27 15:18 onenand_2x_program: optional or required ? David Wagner
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