From: Wolfgang Grandegger <wg@grandegger.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: SocketCAN Core Mailing List <socketcan-core@lists.berlios.de>,
Willy Lambert <lambert.willy@gmail.com>,
x86@kernel.org, Valdis.Kletnieks@vt.edu,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86_64: permit to configure ISA support also for x86_64 systems
Date: Wed, 21 Sep 2011 10:33:10 +0200 [thread overview]
Message-ID: <4E79A146.2040204@grandegger.com> (raw)
In-Reply-To: <201109201747.50130.arnd@arndb.de>
On 09/20/2011 05:47 PM, Arnd Bergmann wrote:
> On Friday 16 September 2011, Wolfgang Grandegger wrote:
>> On 09/16/2011 09:19 PM, Valdis.Kletnieks@vt.edu wrote:
>>> On Fri, 16 Sep 2011 11:22:45 +0200, Wolfgang Grandegger said:
>>>> There are 64-bit systems out there, like the ATOM N450, which
>>>> have ISA slots.
>>>
>>> That's a scary thought...
>>
>> Well. Actually we need it for Intel Atom N450 PC/104-Plus SBCs.
>
> I would assume that you have a small set of ISA add-on cards that
> you actually need to support, right?
Yes, various PC/104 compatible boards can be connected to the ISA bus on
such systems (via PC/104 connector). I personally do only care about the
CAN devices (as maintainer).
> Since most ISA drivers don't actually use isa_register_driver
> (for good or bad), how about changing the Kconfig entry for
> the ones you need to 'depends on ISA || PLAT_GRANDEGGER_PC104_ATOM'
> or similar?
What should the PLAT_GRANDEGGER_PC104_ATOM be good for? If I replace
isa_register_driver() with platform_driver_register(), like the serial
8250 driver does, HAS_IOMEM should be just fine. This would then also
avoid the 64-bit trouble expected with old ISA drivers (enabled via
ISA). Or have I missed something?
Wolfgang.
next prev parent reply other threads:[~2011-09-21 8:33 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-16 9:22 [PATCH] x86_64: permit to configure ISA support also for x86_64 systems Wolfgang Grandegger
2011-09-16 19:19 ` Valdis.Kletnieks
2011-09-16 19:31 ` Wolfgang Grandegger
2011-09-20 15:47 ` Arnd Bergmann
2011-09-21 8:33 ` Wolfgang Grandegger [this message]
2011-09-21 9:24 ` Arnd Bergmann
2011-09-21 22:13 ` Andi Kleen
2011-09-22 6:43 ` Wolfgang Grandegger
2011-09-22 14:20 ` Arnd Bergmann
2011-09-22 14:57 ` Wolfgang Grandegger
2011-09-18 23:19 ` Calvin Walton
2011-09-16 22:33 ` Andi Kleen
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