From: Wolfgang Denk <wd@denx.de>
To: "Lei Sun" <leisun124@gmail.com>
Cc: Dave Liu <r63238@freescale.com>, linuxppc-embedded@ozlabs.org
Subject: Re: memory corruption after MMU turned on
Date: Sun, 19 Nov 2006 01:48:01 +0100 [thread overview]
Message-ID: <20061119004801.A57B3353B9C@atlas.denx.de> (raw)
In-Reply-To: Your message of "Sat, 18 Nov 2006 16:53:02 EST." <f9a7e7a80611181353p21dce384m21f30bc9d8935a8d@mail.gmail.com>
In message <f9a7e7a80611181353p21dce384m21f30bc9d8935a8d@mail.gmail.com> you wrote:
> I tried enable i-cache, but it looks fine, however if i enable
> d-cache, u-boot corrupted right away, debugger showed some garbage
> memory instead of valid instruction.
Did you read the U-Boot README? It explains why this cannot work.
> > > > > The kernel hangs after uncompressing is done, further debug shows
> > > > > that it hangs right after "rfi " instruction of the turn_on_mmu:
> > > > > function in head.S
Did you read the FAQ, like
http://www.ultsol.com/faq_p305.htm ?
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
"Everything should be made as simple as possible, but not simpler."
- Albert Einstein
next prev parent reply other threads:[~2006-11-19 0:48 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-16 15:44 memory corruption after MMU turned on Lei Sun
[not found] ` <1628E43D99629C46988BE46087A3FBB97AFFDC@ep-01.EmbeddedPlanet.local>
2006-11-16 16:42 ` Lei Sun
2006-11-17 8:48 ` Dave Liu
2006-11-17 16:47 ` Lei Sun
2006-11-18 10:03 ` Dave Liu
2006-11-18 21:53 ` Lei Sun
2006-11-19 0:48 ` Wolfgang Denk [this message]
2006-11-19 6:01 ` Dave Liu
-- strict thread matches above, loose matches on Subject: below --
2006-11-16 16:11 Claus Gindhart
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