ipq806x: fix "reboot" command

The watchdog driver already registers a restart notifier, we just have
to enable it in the config and in the DT to fix the "reboot" command.

This is done by integratin the following patch-set:
https://lkml.org/lkml/2015/2/20/610

I'm copy-pasting the description below:
qcom-wdt is currently assuming the presence of a dedicated node in DT
to gets its configuration. However, on msm architecture, the watchdog is
usually part of the timer block. So this patch-set is changing the driver
and slightly enhancing the timer DT bindings to provide the relevant clocks
and interrupts.

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 44504

1 files changed, 50 insertions, 0 deletions

diff --git a/target/linux/ipq806x/patches/013-ARM-msm-add-watchdog-entries-to-DT-timer-binding-doc.patch b/target/linux/ipq806x/patches/013-ARM-msm-add-watchdog-entries-to-DT-timer-binding-doc.patch
new file mode 100644
index 0000000000..6876768962
--- /dev/null
+++ b/target/linux/ipq806x/patches/013-ARM-msm-add-watchdog-entries-to-DT-timer-binding-doc.patch
@@ -0,0 +1,50 @@
+From e535f01dffb6dd9e09934fa219be52af3437a8f6 Mon Sep 17 00:00:00 2001
+From: Mathieu Olivari <mathieu@codeaurora.org>
+Date: Thu, 19 Feb 2015 20:36:27 -0800
+Subject: [PATCH 3/3] ARM: msm: add watchdog entries to DT timer binding doc
+
+The watchdog has been reworked to use the same DT node as the timer.
+This change is updating the device tree doc accordingly.
+
+Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
+---
+ Documentation/devicetree/bindings/arm/msm/timer.txt | 16 +++++++++++++---
+ 1 file changed, 13 insertions(+), 3 deletions(-)
+
+--- a/Documentation/devicetree/bindings/arm/msm/timer.txt
++++ b/Documentation/devicetree/bindings/arm/msm/timer.txt
+@@ -9,11 +9,17 @@ Properties:
+                "qcom,scss-timer" - scorpion subsystem
+ 
+ - interrupts : Interrupts for the the debug timer, the first general purpose
+-               timer, and optionally a second general purpose timer in that
+-               order.
++               timer, and optionally a second general purpose timer, and
++               optionally as well, 2 watchdog interrupts, in that order.
+ 
+ - reg : Specifies the base address of the timer registers.
+ 
++- clocks: Reference to the parent clocks, one per output clock. The parents
++          must appear in the same order as the clock names.
++
++- clock-names: The name of the clocks as free-form strings. They should be in
++               the same order as the clocks.
++
+ - clock-frequency : The frequency of the debug timer and the general purpose
+                     timer(s) in Hz in that order.
+ 
+@@ -29,9 +35,13 @@ Example:
+                compatible = "qcom,scss-timer", "qcom,msm-timer";
+                interrupts = <1 1 0x301>,
+                             <1 2 0x301>,
+-                            <1 3 0x301>;
++                            <1 3 0x301>,
++                            <1 4 0x301>,
++                            <1 5 0x301>;
+                reg = <0x0200a000 0x100>;
+                clock-frequency = <19200000>,
+                                  <32768>;
++               clocks = <&sleep_clk>;
++               clock-names = "sleep";
+                cpu-offset = <0x40000>;
+        };