netdev - RE: [PATCH 1/4] ucc_geth: Change private immrbar_virt_to

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Message-ID: <989B956029373F45A0B8AF02970818900D4332@zch01exm26.fsl.freescale.net>
Date:	Wed, 7 Feb 2007 17:34:18 +0800
From:	"Li Yang-r58472" <LeoLi@...escale.com>
To:	"Kumar Gala" <galak@...nel.crashing.org>
Cc:	<jeff@...zik.org>, <netdev@...r.kernel.org>,
	<linuxppc-dev@...abs.org>
Subject: RE: [PATCH 1/4] ucc_geth: Change private immrbar_virt_to_phys to generic iopa

> On Feb 6, 2007, at 5:31 AM, Li Yang wrote:
> 
> > Get rid of private immrbar_virt_to_phys() routine and
> > use generic iopa().
> 
> Nack. iopa() isn't that generic, shouldn't we really be using the dma
> mapping API here?

Do you mean the dma_map_single()?  dma_map_single can map memory space
correctly, but I don't think it can handle ioremap-ed space.

- Leo
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