On Tue, Nov 24, 2015 at 01:00:51PM -0500, Damien Riegel wrote:

This watchdog is instantiated in a FPGA that is memory mapped. It is
made of only one register, called the feed register. Writing to this
register will re-arm the watchdog for a given time (and enable it if it
was disable). It can be disabled by writing a special value into it.

It is part of a syscon block, and the watchdog register offset in this
block varies from board to board. This offset is passed in the syscon
property after the phandle to the syscon node.

Signed-off-by: Damien Riegel <redacted>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>