On Sunday, July 04, 2010 14:11:15 Bill Traynor wrote:
> I've compiled and tested u-boot from git for the 7785lcr board.  I'd
> like to write the u-boot.bin to flash but do not have a JTAG to be able
> to recover if the write fails.
> 
> Given the MTD layout:
> dev:    size   erasesize  name
> mtd0: 00080000 00040000 "loader"
> mtd1: 00080000 00040000 "bootenv"
> mtd2: 00400000 00040000 "kernel"
> mtd3: 03b00000 00040000 "data"
> 
> Is it reasonable to do the following:
> 
> flash_erase /dev/mtd[0]
> dd if=/tmp/u-boot.bin of=/dev/mtd0 bs=128k conv=sync

why dont you just use the mtdblock interface ?  it will take care of all the 
weird flash issues like erasing/etc...

all i do is:
cat u-boot.bin > /dev/mtdblock0
-mike