[U-Boot] [PATCH] bcm2835: wdt: support for the bcm2835/2836 wdt

[Paolo Pisati]

The following patch add support for the watchdog built into the
bcm2835/2836 chips, using the max timeout (~15s).

By default the watchdog is compiled in, but disabled.
To enable it, apply the following patch:

--- a/include/configs/rpi.h
+++ b/include/configs/rpi.h
@@ -109,6 +109,7 @@
 
 /* Watchdog support */
 #define CONFIG_BCM2835_WDT
+#define CONFIG_HW_WATCHDOG
 
 /* Console configuration */
 #define CONFIG_SYS_CBSIZE              1024
-- 
2.7.4

Tested on my RaspberryPi2.

Paolo Pisati (1):
  bcm2835_wdt: support for the BCM2835/2836 watchdog

 arch/arm/mach-bcm283x/reset.c  | 21 ++++++++++++++++++---
 board/raspberrypi/rpi/rpi.c    |  4 ++++
 drivers/watchdog/Makefile      |  1 +
 drivers/watchdog/bcm2835_wdt.c | 34 ++++++++++++++++++++++++++++++++++
 include/configs/rpi.h          |  3 +++
 scripts/config_whitelist.txt   |  1 +
 6 files changed, 61 insertions(+), 3 deletions(-)
 create mode 100644 drivers/watchdog/bcm2835_wdt.c

-- 
2.7.4