From: Scott Wood <scottwood@freescale.com>
To: jay_chen <jay_chen@alphanetworks.com>
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: MPC8349 DMA
Date: Wed, 19 Nov 2008 10:05:08 -0600 [thread overview]
Message-ID: <49243934.6030208@freescale.com> (raw)
In-Reply-To: <6440C70E43EB4F019FF76DFFA4297B2D@alphajay>
jay_chen wrote:
> Thanks for your help.
> Could you give some hints about how to "map your memory as
> coherence-required"?
The M bit needs to be set in the BATs and PTEs. Current kernels do
this; I don't know about really old ones such as 2.6.14.
-Scott
prev parent reply other threads:[~2008-11-19 16:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-11 14:16 MPC8349 DMA jay_chen
2008-11-11 18:18 ` Scott Wood
2008-11-19 11:14 ` jay_chen
2008-11-19 16:05 ` Scott Wood [this message]
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