Thanks to Jö Fahlke for donating hardware.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>

Forward porting of Ladis' 2.4 patch.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>