tree 24503bc9ebe8496566991c5a7a689b4115065e7b
parent 89becf5c0d9019f4f9300840f08a98ee33d57d37
author Ralf Baechle <ralf@linux-mips.org> 1194801886 +0000
committer Ralf Baechle <ralf@linux-mips.org> 1195168910 +0000

[MIPS] Sibyte: Increase minimum oneshot timer interval to two ticks.

For the old minimum of a single tick a value of zero would be programmed
into the init value register which in the BCM1250/BCM1125/BCM1125H User
Manual in the Timer Special Cases section is documented to have
UNPREDICTABLE effect.

Observable sympthoms of this bug were hangs of several seconds on the
console during bootup and later if both dyntick and highres timer options
were activated.

In theory contiguous mode of the timers is also affected but in an act of
hopeless lack of realism I'll assume nobody will ever configure a KERNEL
for HZ > 500kHz but if so I leave that to evolution to sort out.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>