From: Pierre Ossman <drzeus-list@drzeus.cx>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Ben Dooks <ben@fluff.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] [MMC] Fix base address configuration in wbsd
Date: Mon, 07 Aug 2006 01:19:59 +0200 [thread overview]
Message-ID: <44D6791F.8030001@drzeus.cx> (raw)
In-Reply-To: <1154907141.25998.2.camel@localhost.localdomain>
Alan Cox wrote:
> Ar Sul, 2006-08-06 am 23:52 +0200, ysgrifennodd Pierre Ossman:
>
>> Sorry, my intention wasn't to assert that it was only to be used on x86
>> but that the 16-bit assumption was safe.
>>
>
> Your ISA bus mappings on a non x86 processor are likely to be 32bit MMIO
> -> PIO windows in memory space.
>
>
Since we configure the device, the PIO address must not be subject to
translation. If it is, then we must know how the translation is done.
As this is a rather crappy chip which nobody in their right mind would
use, we'll cross that bridge when/if someone decides to use it in a
system that doesn't behave like x86.
Rgds
Pierre
next prev parent reply other threads:[~2006-08-06 23:19 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-06 20:22 [PATCH] [MMC] Fix base address configuration in wbsd Pierre Ossman
2006-08-06 20:48 ` Russell King
2006-08-06 20:57 ` Pierre Ossman
2006-08-06 21:05 ` Russell King
2006-08-06 21:29 ` Pierre Ossman
2006-08-06 21:35 ` Ben Dooks
2006-08-06 21:52 ` Pierre Ossman
2006-08-06 23:32 ` Alan Cox
2006-08-06 23:19 ` Pierre Ossman [this message]
2006-08-06 21:13 ` Randy.Dunlap
2006-08-06 21:30 ` Pierre Ossman
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