[EXPERIMENTAL] 2.6 high resolution timer (HRT) support for MIPS

[Jun Sun <jsun@mvista.com>]

This set of patches add high resolution posix timer support.  
You need to apply patches in the following order:

http://linux.junsun.net/patches/oss.sgi.com/experimental/040419.a-cpu-timer.patch
http://linux.junsun.net/patches/oss.sgi.com/experimental/040420.a-cpu-timer-for-smp.patch
http://linux.junsun.net/patches/oss.sgi.com/experimental/040426.a-hrtimers-2.6.5-1.0.patch
http://linux.junsun.net/patches/oss.sgi.com/experimental/040426.b-mips-hrt-2.6.patch

These patches are tested on NEC Rockhopper boards and Broadcom
bcm1250 boards (in SMP mode) against linux-mips.org CVS tree
around April 20, 2004 (kernel 2.6.5).

If you want HRT working on other boards, you need

        a) make sure the board is uing cpu timer as system timer
        b) enable CONFIG_CPU_TIMER for the board

Jun