Cirrus Logic EDB9302 JFFS2 problem
jjreynolds2004 at yahoo.com
Fri Mar 11 14:52:51 EST 2005
I have a Cirrus Logic EDB9302 pcb running Linux version
and have a problem with a flash partition I created.
I followed the instructions in the Cirrus app note and setup
the kernel mtd stuff. I've used various versions of
mkfs.jffs2, up to 1.42
mkfs.jffs2 -r partition_dir -o output_file -e 0x20000 -p,
using a 128K erase block to match the MT28F128 chip.
I download the flash file into the pcb and write it using
lo -r -v -b 0x1000000 jffs2.out
fi cr -r -l 0x400000
creating a 4M partition.
I can mount /dev/mtdblock6 and read it ok. The files cmp
ok with the originals located in /etc. One thing I notice is
df indicated more usage that if should be, less then 50K
worth of files in a 4M partition showing 32% used !
When I starting witting or erasing files in the partition
on the following remount I get various errors and corrupt
jffs2_scan_inode_node(): Data CRC failed on node at 0x000abc44: Read
0x189aa386, calculated 0xefa9b9b2
jffs2_scan_inode_node(): CRC failed on node at 0x000afd54: Read
0x09afa921, calculated 0xf472bf46
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x000afd58:
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x000afd5c:
Am I missing something ? Anyone have this problem or is it just me :)
Thanks for any feedback,
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