Commit 54e3d9b5 authored by Marek Behún's avatar Marek Behún Committed by Wim Van Sebroeck

watchdog: Add support for Armada 37xx CPU watchdog

This adds support for the CPU watchdog found on Marvell Armada 37xx
SoCs.

There are 4 counters which can be set as CPU watchdog counters.
This driver uses the second counter (ID 1, counting from 0) as watchdog
counter, and first counter (ID 0) to implement pinging on the second
counter without the need to disable it.

Since counters IDs 2 and 3 are enabled already before even U-Boot
starts, this driver does not use them at all, for example by adding a
device tree property for counter selection.
Signed-off-by: default avatarMarek Behún <marek.behun@nic.cz>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Tested-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@linux-watchdog.org>
parent 270c4265
......@@ -273,6 +273,17 @@ config ARM_SBSA_WATCHDOG
To compile this driver as module, choose M here: The module
will be called sbsa_gwdt.
config ARMADA_37XX_WATCHDOG
tristate "Armada 37xx watchdog"
depends on ARCH_MVEBU || COMPILE_TEST
select MFD_SYSCON
select WATCHDOG_CORE
help
Say Y here to include support for the watchdog timer found on
Marvell Armada 37xx SoCs.
To compile this driver as a module, choose M here: the
module will be called armada_37xx_wdt.
config ASM9260_WATCHDOG
tristate "Alphascale ASM9260 watchdog"
depends on MACH_ASM9260 || COMPILE_TEST
......
......@@ -38,6 +38,7 @@ obj-$(CONFIG_USBPCWATCHDOG) += pcwd_usb.o
# ARM Architecture
obj-$(CONFIG_ARM_SP805_WATCHDOG) += sp805_wdt.o
obj-$(CONFIG_ARM_SBSA_WATCHDOG) += sbsa_gwdt.o
obj-$(CONFIG_ARMADA_37XX_WATCHDOG) += armada_37xx_wdt.o
obj-$(CONFIG_ASM9260_WATCHDOG) += asm9260_wdt.o
obj-$(CONFIG_AT91RM9200_WATCHDOG) += at91rm9200_wdt.o
obj-$(CONFIG_AT91SAM9X_WATCHDOG) += at91sam9_wdt.o
......
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