linux/arch/arm/boot
Stephen Warren d0f1c7ffaa ARM: bcm2835: implement machine restart hook
Implement the machine restart hook using the SoC's watchdog timer module.
To support this, define a DT binding for the watchdog module, and add it
to the device tree.

The downstream rpi-split branch contains a full watchdog timer driver
implementation, which also implements the restart hook. However, the
restart function is largely separate from the watchdog driver, so for
simplicity, the restart hook is implemented here directly in the main
machine source file.

Overall structure (separate setup/restart) functions derived from the
picoxcell ARM support.

Watchdog register IO sequence taken from code by Simon Arlott. Note that
the watchdog module is not documented in BCM2835-ARM-Peripherals.pdf.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
2012-10-25 20:42:36 -06:00
..
bootp ARM: 6499/1: Thumb-2: Correct data alignment for CONFIG_THUMB2_KERNEL in bootp/init.S 2010-11-30 13:44:24 +00:00
compressed Merge branch 'fixes' into for-linus 2012-10-11 10:55:04 +01:00
dts ARM: bcm2835: implement machine restart hook 2012-10-25 20:42:36 -06:00
.gitignore ARM: devicetree: Add .dtb files to arch/arm/boot/.gitignore 2012-01-30 11:47:37 -07:00
install.sh kbuild: use INSTALLKERNEL to select customized installkernel script 2009-09-20 12:18:14 +02:00
Makefile ARM: move all dtb targets out of Makefile.boot 2012-09-14 09:22:04 -05:00