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

Message ID 1485517122-11734-1-git-send-email-p.pisati@gmail.com
State Not Applicable
Delegated to: Tom Rini
Headers show

Commit Message

Paolo Pisati Jan. 27, 2017, 11:38 a.m. UTC 
[resend with swarren in cc:]

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:

--
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
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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