From: Benjamin Herrenschmidt <benh@kernel•crashing.org>
To: Grant Likely <grant.likely@secretlab•ca>
Cc: "Becky Bruce" <Becky.Bruce@freescale•com>,
"Piotr Zięcik" <kosmo@semihalf•com>,
"Detlev Zundel" <dzu@denx•de>, "John Rigby" <jrigby@gmail•com>,
netdev@vger•kernel.org, linuxppc-dev@ozlabs•org,
"Scott Wood" <scottwood@freescale•com>,
"Wolfgang Denk" <wd@denx•de>
Subject: Re: [PATCH 02/12] fs_enet: Add MPC5121 FEC support.
Date: Tue, 19 May 2009 08:17:31 +1000 [thread overview]
Message-ID: <1242685051.16901.6.camel@pasglop> (raw)
In-Reply-To: <fa686aa40905140700k3ca28ac0m74c9c161ad538abc@mail.gmail.com>
On Thu, 2009-05-14 at 08:00 -0600, Grant Likely wrote:
>
> All of this doesn't actually affect the driver code at all. It's all
> handled by the kernel and the DMA apis. What it does affect is
> multiplatform kernels. The DMA behaviour is set at compile time, not
> run time, depending on the setting of CONFIG_NON_COHERENT_CACHE (see
> arch/powerpc/platforms/Kconfig.cputype). A kernel which has it on
> won't run properly on a platform which has it off, and visa-versa.
We are close to the point where we can make this a runtime option
though, by just having a different set of dma_ops hooked in.
Cheers,
Ben.
next prev parent reply other threads:[~2009-05-18 22:17 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1241640919-4650-1-git-send-email-wd@denx.de>
2009-05-06 20:15 ` [PATCH 01/12] fs_enet: Use defines to set driver tunables Wolfgang Denk
2009-05-06 20:35 ` Grant Likely
2009-05-06 22:02 ` Wolfgang Denk
2009-05-06 22:41 ` Grant Likely
2009-05-06 20:15 ` [PATCH 02/12] fs_enet: Add MPC5121 FEC support Wolfgang Denk
2009-05-06 20:33 ` Grant Likely
2009-05-06 21:08 ` Scott Wood
2009-05-06 22:01 ` Wolfgang Denk
2009-05-06 22:29 ` Grant Likely
2009-05-06 22:41 ` Wolfgang Denk
2009-05-07 14:09 ` Grant Likely
2009-05-08 2:02 ` John Rigby
2009-05-08 7:52 ` David Miller
2009-05-07 13:05 ` Kumar Gala
2009-05-06 20:40 ` David Miller
2009-05-06 22:06 ` Wolfgang Denk
2009-05-06 20:41 ` Scott Wood
2009-05-06 22:09 ` Wolfgang Denk
2009-05-06 22:39 ` Grant Likely
2009-05-14 12:38 ` Piotr Zięcik
2009-05-14 14:00 ` Grant Likely
2009-05-18 22:17 ` Benjamin Herrenschmidt [this message]
2009-05-19 11:26 ` Piotr Zięcik
2009-05-19 21:56 ` Benjamin Herrenschmidt
2009-05-21 8:34 ` Piotr Zięcik
2009-05-21 15:36 ` Grant Likely
2009-05-06 20:15 ` [PATCH 03/12] fs_enet: Add FEC TX Alignment workaround for MPC5121 Wolfgang Denk
2009-05-06 20:37 ` Grant Likely
2009-05-06 22:12 ` Wolfgang Denk
2009-05-06 22:42 ` Grant Likely
2009-05-08 2:36 ` John Rigby
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