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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: linas@austin.ibm.com
Cc: linuxppc-dev@lists.linuxppc.org
Subject: Re: [PATCH] ppc64 kernel 2.6 ide-related patches (revised)
Date: Sat, 13 Sep 2003 20:18:53 +0200	[thread overview]
Message-ID: <1063477133.9720.23.camel@gaston> (raw)
In-Reply-To: <20030912120037.A26892@forte.austin.ibm.com>


On Fri, 2003-09-12 at 19:00, linas@austin.ibm.com wrote:

> -- the current code does *not* auto-negotiate itself up into the
>    highest possible performance mode.  (i.e. 32 bit transfers, dma on,
>    etc.)  This appears to be due to the fact that this task is normally
>    done by i386 BIOS, and the ppc open firmware doesn't do anything
>    analogous, and there's nothing in the kernel (that I know of) to
>    make up for this.

This is done in the kernel by the host chipset driver normally. It works
fine on pmac with ppc32 at least ;)


** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

      reply	other threads:[~2003-09-13 18:18 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-09-11 16:28 [PATCH] ppc64 kernel 2.6 ide-related patches (trivial) linas
2003-09-11 22:04 ` linas
2003-09-12 17:00 ` [PATCH] ppc64 kernel 2.6 ide-related patches (revised) linas
2003-09-13 18:18   ` Benjamin Herrenschmidt [this message]

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