From: Wolfgang Denk <wd@denx.de>
To: Ryan Wilkins <ryan@elevated-networks.com>
Cc: linuxppc-embedded@ozlabs.com
Subject: Re: MPC850 and GDB help
Date: Sun, 24 Oct 2004 22:45:50 +0200 [thread overview]
Message-ID: <20041024204555.C38ECC1430@atlas.denx.de> (raw)
In-Reply-To: Your message of "Sun, 24 Oct 2004 16:33:44 EDT." <002D5C38-25FC-11D9-BA35-0050E4B0DC64@elevated-networks.com>
In message <002D5C38-25FC-11D9-BA35-0050E4B0DC64@elevated-networks.com> you wrote:
>
> What about running the Linux kernel from ram? Will I encounter the
> same difficulties?
No, this is what Linux is designed for.
But this doesn't help you. Before Linux can run, you need a working
boot loader to initialize the hardware.
Before you start you should ask yourself if you have all required
documentation available. You will need a detailed hardware descrip-
tion, which documents which pins of the MPC8xx are used for which
purpose, what board control registers, CPLDs etc. are there and how
they are expected to be initialized, etc.
With all the documentation available, you will need to get a thorough
understanding of the hardware. Only then you should try porting a
boot loader.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Carelessly planned projects take three times longer to complete than
expected. Carefully planned projects take four times longer to
complete than expected, mostly because the planners expect their
planning to reduce the time it takes.
next prev parent reply other threads:[~2004-10-24 20:45 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-24 18:07 MPC850 and GDB help Ryan Wilkins
2004-10-24 19:33 ` Frank
2004-10-24 20:33 ` Ryan Wilkins
2004-10-24 20:45 ` Wolfgang Denk [this message]
2004-10-24 21:50 ` Frank
2004-10-24 22:31 ` Ryan Wilkins
2004-10-24 23:39 ` Wolfgang Denk
2004-10-24 23:59 ` Ryan Wilkins
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