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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-11-09 11:18:36 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-11-09 11:18:36 +0000 |
| commit | ebb4c65869db7213280ad9c510637683939b5ff8 (patch) | |
| tree | e9aa372c806fad73a04ba2f9d16d1f17491a11cf /arch/arm/plat-iop/gpio.c | |
| parent | 7bfc0b2e266dd4cd3d3f27a3ad31bf79974190b1 (diff) | |
[ARM] iop: iop3xx needs registers mapped uncached+unbuffered
Mikael Pettersson reported:
The 2.6.28-rc kernels fail to detect PCI device 0000:00:01.0
(the first ethernet port) on my Thecus n2100 XScale box.
There is however still a strange "ghost" device that gets partially
detected in 2.6.28-rc2 vanilla.
The IOP321 manual says:
The user designates the memory region containing the OCCDR as
non-cacheable and non-bufferable from the IntelR XScaleTM core.
This guarantees that all load/stores to the OCCDR are only of
DWORD quantities.
Ensure that the OCCDR is so mapped.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/plat-iop/gpio.c')
0 files changed, 0 insertions, 0 deletions