From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [GIT PULL] io.h clean-up for PCI
Date: Tue, 24 Jul 2012 14:18:54 +0000 [thread overview]
Message-ID: <201207241418.54637.arnd@arndb.de> (raw)
In-Reply-To: <500EA251.1090000@gmail.com>
On Tuesday 24 July 2012, Rob Herring wrote:
> How is mem_offset supposed to be set? Generally memory is setup as cpu
> base paddr = pci mem addr, so mem_offset should be 0? But integrator is
> set to the cpu paddr, and it works.
I don't really know. I would assume that setting mem_offset to something
other than 0 means your bus address space is not the same as the cpu
address space. The window that is usable by PCI should be specified
in the memory resource, not using the mem_offset, but I could be
interpreting that incorrectly.
Arnd
next prev parent reply other threads:[~2012-07-24 14:18 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-16 22:15 [GIT PULL] io.h clean-up for PCI Rob Herring
2012-07-17 20:53 ` Arnd Bergmann
2012-07-19 14:12 ` Arnd Bergmann
2012-07-24 12:33 ` Rob Herring
2012-07-24 12:43 ` Arnd Bergmann
2012-07-24 13:25 ` Rob Herring
2012-07-24 14:18 ` Arnd Bergmann [this message]
2012-07-25 14:41 ` Rob Herring
2012-07-25 15:52 ` Arnd Bergmann
2012-07-19 14:16 ` Arnd Bergmann
2012-07-23 0:35 ` Rob Herring
2012-07-27 21:59 ` Rob Herring
2012-07-28 14:38 ` Will Deacon
2012-07-30 11:05 ` Rob Herring
2012-07-30 14:31 ` Russell King - ARM Linux
2012-07-30 14:56 ` Rob Herring
2012-08-27 8:27 ` Russell King - ARM Linux
2012-08-28 0:14 ` Rob Herring
2012-07-29 23:07 ` Olof Johansson
2012-08-14 9:14 ` Will Deacon
2012-08-14 9:37 ` Arnd Bergmann
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