bcm2835_wdt: support for the BCM2835/2836 watchdog

Signed-off-by: Paolo Pisati <p.pisati@gmail.com>
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 2034e3c..bdaf5d4 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1,5 +1,17 @@
 menu "Watchdog Timer Support"
 
+config HW_WATCHDOG
+	bool
+
+config BCM2835_WDT
+	bool "Enable BCM2835/2836 watchdog driver"
+	select HW_WATCHDOG
+	help
+	  Say Y here to enable the BCM2835/2836 watchdog
+
+	  This provides basic infrastructure to support BCM2835/2836 watchdog
+	  hardware, with a max timeout of ~15secs.
+
 config ULP_WATCHDOG
 	bool "i.MX7ULP watchdog"
 	help