From: Matt Sealey <matt@genesi-usa•com>
To: Kumar Gala <galak@kernel•crashing.org>
Cc: linuxppc-dev@ozlabs•org, "Régis Odeyé" <regis.odeye@kontron•com>
Subject: Re: Extended Addressing Mode
Date: Wed, 22 Oct 2008 09:19:49 -0500 [thread overview]
Message-ID: <48FF3685.5020504@genesi-usa.com> (raw)
In-Reply-To: <DC24FCF5-F410-47AB-8FC0-592EA0906568@kernel.crashing.org>
Kumar Gala wrote:
>
> On Oct 22, 2008, at 8:42 AM, Matt Sealey wrote:
>> So to confirm, XAEN support through Becky's patches does support the
>> MPC8641D/e600 cores?
>
> Yes, its the only part that has XAEN.
Okay I saw a lot of e500/BookE support go past but nothing
specific :)
>> NOT supported because of the way the LAWs work, and also the alignment
>> of the LAWs means it is not fine enough granularity to map between 2GB
>> and 4GB into a window (you can have 2GB or 4GB but not some more
>> arbitrary value?)
>
> You can overlap LAWs because they have priority encoding. The lower the
> LAW # the higher the priority.
Hmm :)
> Your bigger issue is if you can setup the DDR controller for the hole
> you want.
Hmmmmm :)
Okay good to know. I'll go back to reading the docs.
--
Matt Sealey <matt@genesi-usa•com>
Genesi, Manager, Developer Relations
next prev parent reply other threads:[~2008-10-22 14:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-22 8:59 Extended Addressing Mode Régis Odeyé
2008-10-22 12:31 ` Kumar Gala
2008-10-22 12:59 ` Régis Odeyé
2008-10-22 13:08 ` Kumar Gala
2008-10-22 13:40 ` Régis Odeyé
2008-10-22 13:42 ` Matt Sealey
2008-10-22 14:06 ` Kumar Gala
2008-10-22 14:19 ` Matt Sealey [this message]
2008-10-22 14:58 ` Kumar Gala
2008-10-22 18:11 ` Matt Sealey
2008-10-22 19:59 ` Becky Bruce
2008-10-22 22:18 ` Matt Sealey
2008-10-22 14:22 ` Matt Sealey
2008-10-22 14:59 ` Kumar Gala
2008-10-22 18:25 ` Matt Sealey
2008-10-22 14:18 ` Régis Odeyé
2008-10-22 22:11 ` Benjamin Herrenschmidt
2008-10-22 22:21 ` Matt Sealey
2008-10-22 22:48 ` Benjamin Herrenschmidt
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