From: khc@pm.waw.pl (Krzysztof Halasa)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: remove ixp2000 platform
Date: Tue, 13 Mar 2012 22:15:29 +0100 [thread overview]
Message-ID: <m3sjhcdwy6.fsf@intrepid.localdomain> (raw)
In-Reply-To: <4F5D39D1.4050000@snapgear.com> (Greg Ungerer's message of "Mon, 12 Mar 2012 09:48:33 +1000")
Greg Ungerer <gerg@snapgear.com> writes:
>> The problematic one is IXP42x rev. A0. It has no support for hw mixed
>> mode (LE core + lane swapping where needed). Unfortunately this early
>
> It is not problematic if you are running your core BE right?
Right.
Of course it requires lane-swapping between PCI and the core/RAM. The
chip is set to hardware swap these accesses (block transfers and binary
structure layouts are correct, including bus master transfers) and
integer data (mostly u16/u32) are swapped again by the core
(readl/writel, also in-memory descriptors etc). All other peripherals
are always BE (NPE net coprocessors, EXP bus).
This all works fine on all revisions including the IXP425-A0.
--
Krzysztof Halasa
next prev parent reply other threads:[~2012-03-13 21:15 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1330450426-14639-1-git-send-email-robherring2@gmail.com>
2012-02-28 19:45 ` [PATCH] ARM: remove ixp2000 platform Arnd Bergmann
2012-03-06 1:41 ` Nicolas Pitre
2012-03-06 2:44 ` Rob Herring
2012-03-06 9:16 ` Russell King - ARM Linux
2012-03-06 14:11 ` Arnd Bergmann
2012-03-06 16:51 ` Nicolas Pitre
2012-03-06 17:10 ` Arnd Bergmann
2012-03-06 17:38 ` Richard Cochran
2012-03-07 8:40 ` Linus Walleij
2012-03-07 9:14 ` Russell King - ARM Linux
2012-03-07 11:54 ` Greg Ungerer
2012-03-11 12:31 ` Krzysztof Halasa
2012-03-11 23:48 ` Greg Ungerer
2012-03-13 21:15 ` Krzysztof Halasa [this message]
2012-03-07 17:09 ` Imre Kaloz
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