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kconfig: move CONFIG_SYS_HZ to lib/Kconfig

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CONFIG_SYS_HZ is always defined as 1000 in config_fallbacks.h
(but some boards still have redundant definitions).

This commit moves the definition and the document in README to
Kconfig.  Since lib/Kconfig can assure that CONFIG_SYS_HZ is 1000,
the sanity check in lib/time.c should be removed.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Masahiro Yamada
2014-10-24 01:30:40 +09:00
committed by Tom Rini
parent b2b8a6967a
commit 8c688bc4de
12 changed files with 8 additions and 25 deletions
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8
lib/Kconfig
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@@ -8,4 +8,12 @@ config CC_OPTIMIZE_LIBS_FOR_SPEED
If unsure, say N.
config SYS_HZ
int
default 1000
help
The frequency of the timer returned by get_timer().
get_timer() must operate in milliseconds and this option must be
set to 1000.
endmenu