suddently, can't use "cp jffs2.img /dev/mtd0" anymore

[Josh Boyer]

On Wed, 2005-07-20 at 11:40 -0700, rolf liu wrote:
> Yesterday, I can use "cp jffs2.img  /dev/mtd0" to copy the jffs2 image
> to mtd. Today, I applied the cvs snapshot of mtd to kernel and
> compiled it. Suddenly, the "cp" command stops working.
> 
> it tells me:
> MTD do_write_buffer(): software timeout
> cp: writing '/dev/mtd0' : Input/output error
> 
> any idea?

Did you erase the chip before writing to it like that again?  If not,
you'll need to do:

flash_eraseall /dev/mtd0

Then try your copy again.

josh