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| author | Ahmad Fatoum <a.fatoum@pengutronix.de> | 2020-07-01 11:11:03 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-07-11 06:14:04 +0200 |
| commit | c4c5f9813c1197d1f67fabe18e5c43d6dbe91ee3 (patch) | |
| tree | eecda1be6534f526e4f234fe58a5d35586318d62 /drivers/watchdog/Kconfig | |
| parent | 0dbd1a8bd5399ee81a657e69da04b64d9d6756ef (diff) | |
| download | barebox-c4c5f9813c1197d1f67fabe18e5c43d6dbe91ee3.tar.gz barebox-c4c5f9813c1197d1f67fabe18e5c43d6dbe91ee3.tar.xz | |
watchdog: add support for at91sam9/sama5 watchdog
The watchdog on these SoCs is enabled by default on system boot, so a
driver is especially useful. According to data sheet the mode register
containing the timeout can be configured only once, but I couldn't
verify this on the sama5d2. Regardless, the driver takes care not to
change the mode register unless necessary. Implementation that want to
leave to the OS the decision which timeout to choose, can just keep
pinging with the POR-default of 16 seconds and the OS will be able to
set the final timeout.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/watchdog/Kconfig')
| -rw-r--r-- | drivers/watchdog/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index d9734ef588..cf83b6a15b 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -22,6 +22,12 @@ config WATCHDOG_AR9344 help Add support for watchdog on the QCA AR9344 SoC. +config WATCHDOG_AT91SAM9 + bool "Watchdog for AT91SAM9 and SAMA5 SoCs" + depends on ARCH_AT91 + help + Support for the watchdog in AT91SAM9X and SAMA5D{2,3,4} SoCs. + config WATCHDOG_EFI bool "Generic EFI Watchdog Driver" depends on EFI_BOOTUP |