From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <3F79D118.9040208@il.marvell.com>
Date: Tue, 30 Sep 2003 21:53:12 +0300
From: Rabeeh Khoury <rabeeh@il.marvell.com>
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To: linuxppc-embedded@lists.linuxppc.org,
	ppcboot-users@lists.sourceforge.net
Subject: Operating system question
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Hi All,

I have a question withregards WIMG MMU settings of page tables / BATs.
Is there any reason why setting the M bit (coherency) on an IO
region (cache inhibited and guarded) ?
Does anyone expect what is the result of doing so ?

I'v seen in the Linux code for PPC that on IO region the M bit is never
set - but what about firmwares ? other operating system ?

Thank you,
Rabeeh


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