From: Dan Malek <dan@embeddededge.com>
To: rmorin@miranda.com
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: MPC8240 PTE setup
Date: Mon, 22 Apr 2002 15:49:06 -0400 [thread overview]
Message-ID: <3CC46932.4040805@embeddededge.com> (raw)
In-Reply-To: 200204221807.g3MI7Uh27005@ares.gdc.ca
Robert Morin wrote:
> I have based my work on the Linux kernel 2.5.8 ....
You don't want to use that yet :-) Use the 2_4_devel kernel.
> ....I can see with my BDI2000 that the
> MMU is not translating correctly virtual addresses to physical
> addresses.
The mmu always translates correctly, your programming of it
is probably incorrect :-)
> .... I made a patch to use a BAT instead of PTE but
> this cause only to move the problem further upstream
What BAT did you change, and to what?
> I have check the parameter passed with ioremap() and it's
> ok. With the BDI2000, I get this with the phys command:
>
> phys 0xfdfd0000 (virtual address returned by ioremap)
>
> PHYS = 0xfffff000 END = 0xffffffff
> instead of
> PHYS 0xfdf40000 END = 0xfdffffff
So, you did 'virt = ioremap(0xfdf40000)' and virt == 0xfdfd0000?
Where did you call ioremap()? Are you trying to remap the EUMB registers
again (this is done in mpc10x_common.c for 82xx boards)?
-- Dan
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-04-22 19:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-22 18:07 MPC8240 PTE setup Robert Morin
2002-04-22 19:49 ` Dan Malek [this message]
2002-04-22 19:08 ` Robert Morin
2002-04-23 15:20 ` Tom Rini
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