Zhang, Which software codebase/release are you using here on DM6446 EVM?
The default NAND configuration for DM6446 EVM is to use a small block NAND flash (with page size = 512bytes) and 1-bit HW ECC. If the driver configuration does not match with what the NAND device expects, all blocks of the NAND device can come back as bad blocks. In which case, the corresponding partition will have 100% space used. Thanks Sneha ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of shaofeng zhang Sent: Tuesday, March 17, 2009 11:22 PM To: [email protected] Subject: Problem with YAFFS2 on LargePage NAND Hi, All, I am using a 128MB LargePage Nand Flash on my DVEVM board (DM6446), and when I mount the /dev/mtdblock4 throught YAFFS2 fs type, I found that the use% of my nand is 100% as the following: Filesystem Size Used Avail Use% Mounted on rootfs 38G 28G 8.0G 78% / /dev/root 38G 28G 8.0G 78% / none 10M 2.5M 7.6M 25% /dev tmpfs 59M 0 59M 0% /tmp none 10M 2.5M 7.6M 25% /dev tmpfs 59M 0 59M 0% /dev/shm /dev/mtdblock4 120M 120M 0 100% /mnt/nand But I first use flash_eraseall to erase the /dev/mtd4 before mounting the /dev/mtdblock4 with YAFFS2 Could anyone tell me some info about the message? Thank you! Best Wishes, Zhang
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