Adjust evbmips_iointr to pass a clockframe pointer and use it for
pwmclock @ voyager.

Suggested by matt@

Hi macallan!

branches: 1.6.12; 1.6.30;
CLeanup machine includes

Revamp / rework the Atheros MIPS SoC support. Add initial support for the
AR71xx (MIPS 24K core) SoC and the AR9344 (MIPS 74K core) SoC. Force use
of -mips32 for all Atheros kernels. Make code much more common.

#include <sys/bus.h> instead of <machine/bus.h>.

Merge forward from matt-nb5-mips64.

branches: 1.2.18; 1.2.22; 1.2.28; 1.2.30;
Remove clause 3 and 4 from TNF licenses

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.14; 1.1.20; 1.1.74; 1.1.76; 1.1.78;
Initial import of Atheros AR531X SoC support. Currently the onboard ethernet
and serial ports are supported, and the system appears stable with an NFS
mounted root. An earlier version of the code was reviewed by simon@, but it
has since had numerous improvements and cleanups.


At the moment, only AR5312 is known to work, but I suspect AR2313 will work
as well. Later 2315/2316 parts are substantially different, and are not yet
supported. Wifi and Marvell switch support found on some designs are not yet
supported.

Platforms known to include AR5312 include Senao Aries 2 (AP5054) and Netgear
WGU624.