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| author | Timur Tabi <timur@freescale.com> | 2010-10-13 21:19:36 +0200 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2010-10-14 08:05:32 +0200 |
| commit | e0dc09ff9a28f37441c5e92a14de6abda8db49d6 (patch) | |
| tree | 9d67ead558435aa6e062aaeaa2750202b7451a3a /drivers/watchdog/Kconfig | |
| parent | fsl_rio: Add comments for sRIO registers. (diff) | |
| download | linux-e0dc09ff9a28f37441c5e92a14de6abda8db49d6.tar.xz linux-e0dc09ff9a28f37441c5e92a14de6abda8db49d6.zip | |
powerpc/watchdog: Make default timeout for Book-E watchdog a Kconfig option
The PowerPC Book-E watchdog driver (booke_wdt.c) defines a default timeout
value in the code based on whether it's a Freescale Book-E part of not.
Instead of having hard-coded values in the driver, make it a Kconfig
option.
As newer chips gets faster, the current default values become less
appropriate, since the timeout sometimes occurs before the kernel finishes
booting. Making the value a Kconfig option allows BSPs to configure a new
value without requiring the wdt_period command-line parameter to be set.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'drivers/watchdog/Kconfig')
| -rw-r--r-- | drivers/watchdog/Kconfig | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index a6812eb31fa1..c356146bd712 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -966,6 +966,23 @@ config BOOKE_WDT Please see Documentation/watchdog/watchdog-api.txt for more information. +config BOOKE_WDT_DEFAULT_TIMEOUT + int "PowerPC Book-E Watchdog Timer Default Timeout" + depends on BOOKE_WDT + default 38 if FSL_BOOKE + range 0 63 if FSL_BOOKE + default 3 if !FSL_BOOKE + range 0 3 if !FSL_BOOKE + help + Select the default watchdog timer period to be used by the PowerPC + Book-E watchdog driver. A watchdog "event" occurs when the bit + position represented by this number transitions from zero to one. + + For Freescale Book-E processors, this is a number between 0 and 63. + For other Book-E processors, this is a number between 0 and 3. + + The value can be overidden by the wdt_period command-line parameter. + # PPC64 Architecture config WATCHDOG_RTAS |