From: Mike Frysinger <vapier@gentoo.org>
To: linux-sh@vger.kernel.org
Subject: Re: upgrading u-boot from linux for SH7785LCR board
Date: Sun, 04 Jul 2010 21:24:43 +0000 [thread overview]
Message-ID: <201007041724.44595.vapier@gentoo.org> (raw)
In-Reply-To: <4C30CEC3.1050003@naoi.ca>
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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
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next prev parent reply other threads:[~2010-07-04 21:24 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-04 18:11 upgrading u-boot from linux for SH7785LCR board Bill Traynor
2010-07-04 21:24 ` Mike Frysinger [this message]
2010-07-04 23:01 ` Nobuhiro Iwamatsu
2010-07-05 3:29 ` Bill Traynor
2010-07-05 4:37 ` Mike Frysinger
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