RE: little endian page mapping on PQ3

Jose,

You are right, PQ3 supports endianess choice on a per page basis.=20
Without any hook in Linux, you can remap physical address range (but =
RAM), by calling __ioremap() with the "_PAGE_ENDIAN" bit set in the =
flags.

--
sj

-----Original Message-----
From:=20
linuxppc-embedded-bounces+sylvain.joyeau=3Dthomson.net@ozlabs.or
g=20
[mailto:linuxppc-embedded-bounces+sylvain.joyeau=3Dthomson.net@o
zlabs.org] On Behalf Of Jose Almeida
Sent: vendredi 24 ao=FBt 2007 09:59
To: Linuxppc-embedded@ozlabs.org
Subject: little endian page mapping on PQ3
=20
Hi all,
=20
Looking at PQ3 documentation, it looks like there is a way to select
on a page basis if we would like to map one particular page in BIG or
LITTLE endian.
This is a very nice feature when you need to exchange some data
between a PC and a PQ3 target.
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I am wondering if someone have already tryed this PQ3 feature ?
I guess this would require some kind of hook in the kernel ...
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Any clue ?
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Thanks -  Jose
=20
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