Re: upgrading u-boot from linux for SH7785LCR board

Nobuhiro Iwamatsu
2010-07-04T23:01:29Z

Hi, Bill.

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\x128k conv=sync

I think that you shoud use flashcp command if you use flash_erase.
This command is in mtd-utils ( same flash_erase).

Best regards,
Nobuhiro