ARM: mvebu: Add A375/A380 watchdog binding documentation

This commit documents the new support for "marvell,armada-{375,380}-wdt"
compatible strings and the extra 'reg' entry requirement.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 7 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/watchdog/marvel.txt b/Documentation/devicetree/bindings/watchdog/marvel.txt
index de11eb4c121f..97223fddb7bd 100644
--- a/Documentation/devicetree/bindings/watchdog/marvel.txt
+++ b/Documentation/devicetree/bindings/watchdog/marvel.txt
@@ -5,11 +5,18 @@ Required Properties:
 - Compatibility : "marvell,orion-wdt"
                   "marvell,armada-370-wdt"
                   "marvell,armada-xp-wdt"
+                  "marvell,armada-375-wdt"
+                  "marvell,armada-380-wdt"
 
 - reg           : Should contain two entries: first one with the
                   timer control address, second one with the
                   rstout enable address.
 
+For "marvell,armada-375-wdt" and "marvell,armada-380-wdt":
+
+- reg           : A third entry is mandatory and should contain the
+                  shared mask/unmask RSTOUT address.
+
 Optional properties:
 
 - interrupts    : Contains the IRQ for watchdog expiration