From: "Ed Swierk" <eswierk@arastra.com>
To: linuxppc-embedded@ozlabs.org
Subject: Re: Serial console not working on EP8343M
Date: Tue, 13 Mar 2007 12:02:20 -0700 [thread overview]
Message-ID: <c1bf1cf0703131202y3039420csb5862fcedebd3241@mail.gmail.com> (raw)
In-Reply-To: <c1bf1cf0703131122mb959d30v78694fc03bd1d6b@mail.gmail.com>
OK, problem solved. Once I kicked out that nasty IPMI driver,
everything works, including the serial console without udbg-immortal.
Lessons learned:
- passing "udbg-immortal loglevel=9 initcall_debug" to the kernel will
give you much more visibility into early init problems (at least on
powerpc arch circa 2.6.20)
- building U-Boot 1.2.0 with DEBUG defined in ft_build.c helps in
troubleshooting flat device tree problems
- the Abatron BDI2000 is an incredibly useful tool: source-level
debugging of U-Boot and the Linux kernel, starting at instruction zero
*swoon*
--Ed
prev parent reply other threads:[~2007-03-14 0:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-13 3:05 Serial console not working on EP8343M Ed Swierk
2007-03-13 14:57 ` Kumar Gala
2007-03-13 15:05 ` RE : " alayrac
2007-03-13 18:22 ` Ed Swierk
2007-03-13 18:45 ` Ed Swierk
2007-03-13 19:02 ` Ed Swierk [this message]
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