Kevin,
I'm not sure if it's useful,
but finally I got the time to look at the two kernel versions Anoop pointed out.
works 2.6.32-stable with patch 804
works_not 2.6.33-stable
greping for files with CONFIG_MIPS_MT_SMTC
and looking for timer interrupt related stuff found the following differences:
arch/mips/include/asm/irq.h
arch/mips/kernel/irq.c
do_IRQ
arch/mips/include/asm/stackframe.h
SAVE_SOME SAVE_TEMP get/set_saved_sp
arch/mips/include/asm/time.h
clocksource_set_clock
arch/mips/kernel/process.c
cpu_idle
arch/mips/kernel/smtc.c
__irq_entry
ipi_decode
SMTC_CLOCK_TICK
Enclosed are the two subsets of files for a more expert look.
I'll try to look in more detail after Christmas.
Cheers,
Stuart
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