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From: John Cagle <jcagle@kernel.org>
To: linuxppc-embedded@lists.linuxppc.org
Subject: Re: 405gp PCI?
Date: Tue, 1 May 2001 17:39:01 -0700	[thread overview]
Message-ID: <20010501173901.A14125@kernel.org> (raw)
In-Reply-To: <3AEF4A65.84AC7436@mvista.com>; from frank_rowand@mvista.com on Tue, May 01, 2001 at 04:44:37PM -0700


On Tue, May 01, 2001 at 04:44:37PM -0700, Frank Rowand wrote:
>
> That's the problem....  That version of the OpenBios changed the PLB to
> PCI address mapping (the mapping is in the PMM0 registers).  The kernel
> expects PLB address 0x8000'0000 to map to PCI address 0x0000'0000, and the
> PMM registers should map PCI address 0x0000'0000 to PLB address 0x0000'0000.
> A near future kernel will fix up the PTM and PMM registers (on the Walnut
> only) to match what the kernel expects.
>

Until a newer kernel is released by Monta Vista, you can use setpci to
change the settings of the PCI bridge as follows:

  setpci -s 0:0.1 14.L=0x8

Regards,
John

------------------------------
John Cagle <jcagle@kernel.org>

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

      reply	other threads:[~2001-05-02  0:39 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-05-01  1:16 405gp PCI? Denton Gentry
2001-05-01  2:39 ` Dan Malek
2001-05-01 20:58   ` Denton Gentry
2001-05-01 21:29     ` Frank Rowand
2001-05-01 22:54       ` Denton Gentry
2001-05-01 23:44         ` Frank Rowand
2001-05-02  0:39           ` John Cagle [this message]

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