Re: upgrading u-boot from linux for SH7785LCR board

Bill Traynor
2010-07-05T03:29:28Z

On 10-07-04 05:24 PM, Mike Frysinger wrote:
> 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\x128k 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
>
Thanks, that worked perfectly.

> -mike
>