From: Wolfgang Denk <wd@denx.de>
To: "Lei Sun" <leisun124@gmail.com>
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: reboot on PQ2FADS board.
Date: Thu, 20 Jul 2006 08:46:26 +0200 [thread overview]
Message-ID: <20060720064626.30695352681@atlas.denx.de> (raw)
In-Reply-To: Your message of "Wed, 19 Jul 2006 23:46:37 EDT." <f9a7e7a80607192046s3f17e8a5s4cfba43f1747e9ec@mail.gmail.com>
In message <f9a7e7a80607192046s3f17e8a5s4cfba43f1747e9ec@mail.gmail.com> you wrote:
>
> m8260_restart(char * cmd)
...
> startaddr = 0x04400000; /* this is taken from u-boot-1.1.4 */
This is a random address which happens to be not mapped in the
specific board (MPC8260ADS.h). The approach taken here is strongly
deprecated - it is juat an examp[le of a badly maintained board. In-
stead, I recommend to use an addrress which causes a checkstop on all
boards, idependently of the cspecific memory map. This is what we do
here:
> > dummy = ((immap_t *)IMAP_ADDR)->im_clkrst.res[0];
In the end, the effect is the same.
And I have no idea why it would not work on your board. Attach a
debugger and find out where exactly the code is hanging.
Ummm... and if you run under a debugger, *detach* it and check if
reset starts to work...
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
It's certainly convenient the way the crime (or condition) of
stupidity carries with it its own punishment, automatically
admisistered without remorse, pity, or prejudice. :-)
-- Tom Christiansen in <559seq$ag1$1@csnews.cs.colorado.edu>
next prev parent reply other threads:[~2006-07-20 6:46 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-18 3:40 reboot on PQ2FADS board Lei Sun
2006-07-19 5:06 ` Li Yang-r58472
2006-07-19 6:33 ` Wolfgang Denk
2006-07-19 14:12 ` Lei Sun
2006-07-19 16:41 ` Mathieu Deschamps
2006-07-20 2:45 ` Lei Sun
2006-07-20 3:46 ` Lei Sun
2006-07-20 6:46 ` Wolfgang Denk [this message]
2006-07-20 7:22 ` Liu Dave-r63238
-- strict thread matches above, loose matches on Subject: below --
2006-08-17 17:00 Zhimin (Jimmy) Liu
2006-08-18 1:45 ` Liu Dave-r63238
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