From: Deepak Saxena <dsaxena@plexity.net>
Date: Wed, 6 Jul 2005 22:06:05 +0000 (+0100)
Subject: [PATCH] ARM: 2792/1: IXP4xx iomap API implementation
X-Git-Tag: v2.6.13-rc3~314^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=450008b5a62bb09445ae05c4d01d510386c9435d;p=pandora-kernel.git

[PATCH] ARM: 2792/1: IXP4xx iomap API implementation

Patch from Deepak Saxena

This patch implements the iomap API for Intel IXP4xx NPU systems.
We need to implement our own version of the API functions b/c of the
PCI hostbridge does not provide the capability to map PCI I/O space
into the CPU's physical memory space. In addition, if a system has
more than 64M of PCI memory mapped BARs, PCI memory must also be
accessed indirectly.  This patch changes the assignment of PCI I/O
resources to fall into to 0x0000:0xffff range so that we can trap
I/O areas in our ioread/iowrite macros.

Signed-off-by: Deepak Saxena
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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