davinci: explain CLOCK_TICK_RATE of 27MHz in include/mach/timex.h
authorSekhar Nori <nsekhar@ti.com>
Mon, 23 Nov 2009 09:57:15 +0000 (15:27 +0530)
committerKevin Hilman <khilman@deeprootsystems.com>
Thu, 4 Feb 2010 21:29:41 +0000 (13:29 -0800)
commit5b5052e32dc53e6e76da188c547f14c4e5e35624
tree197e196c78132bd6998ddfcd8708ec31bbcedfcb
parent60cd02e1f4a1574c26c9ae8d29d63bd3d179c0c2
davinci: explain CLOCK_TICK_RATE of 27MHz in include/mach/timex.h

Leave a comment explaining the constant value of 27Mhz used
in include/mach/timex.h for all DaVinci platforms. Many of
the platforms actually run at 24MHz timer frequency (Eg.
EVMs of DM355, DM365 and OMAP-L1).

The comment also serves as a porting alert.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
arch/arm/mach-davinci/include/mach/timex.h