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| author | Deepak Saxena <dsaxena@plexity.net> | 2005-07-07 00:06:05 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-07-07 00:06:05 +0200 |
| commit | 450008b5a62bb09445ae05c4d01d510386c9435d (patch) | |
| tree | 894096c083c3b8fa1e8ae93e49aad72ca879cccc /Documentation/usb | |
| parent | [PATCH] ARM: 2791/1: Add CRCs for aliased ARM symbols (diff) | |
| download | linux-450008b5a62bb09445ae05c4d01d510386c9435d.tar.xz linux-450008b5a62bb09445ae05c4d01d510386c9435d.zip | |
[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>
Diffstat (limited to 'Documentation/usb')
0 files changed, 0 insertions, 0 deletions