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README: Clarify difference of CONFIG_WATCHDOG and CONFIG_HW_WATCHDOG

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Now that we have the documentation, the code should be changed to reflect
it ;)

Asd far as I can see, these are the places where HW_WATCHDOG is used
instead of WATCHDOG:

arch/blackfin/cpu/blackfin/watchdog.c
arch/m68k/cpu/mcf547x_8x/cpu.c

The relevant maintainers are on CC.

Signed-off-by: Detlev Zundel <dzu@denx.de>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: TsiChungLiew <Tsi-Chung.Liew@freescale.com>
This commit is contained in:
Detlev Zundel 2011-04-27 05:25:59 +00:00 committed by Wolfgang Denk
parent b1196a3fba
commit 6abe6fb68b
1 changed files with 12 additions and 5 deletions
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17
README
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@ -1,5 +1,5 @@
#
# (C) Copyright 2000 - 2009
# (C) Copyright 2000 - 2011
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
@ -739,10 +739,17 @@ The following options need to be configured:
- Watchdog:
CONFIG_WATCHDOG
If this variable is defined, it enables watchdog
support. There must be support in the platform specific
code for a watchdog. For the 8xx and 8260 CPUs, the
SIU Watchdog feature is enabled in the SYPCR
register.
support for the SoC. There must be support in the SoC
specific code for a watchdog. For the 8xx and 8260
CPUs, the SIU Watchdog feature is enabled in the SYPCR
register. When supported for a specific SoC is
available, then no further board specific code should
be needed to use it.
CONFIG_HW_WATCHDOG
When using a watchdog circuitry external to the used
SoC, then define this variable and provide board
specific code for the "hw_watchdog_reset" function.
- U-Boot Version:
CONFIG_VERSION_VARIABLE