dts: versatile: Add sysregs node

The Versatile boards have the same sysregs as other ARM Ltd boards. Add
the nodes in order to enable support for 24MHz counter as sched_clock.

This is a minimal node definition as the existing sub node definition
used on VExpress has some issues raised by Linus W.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/versatile-ab.dts b/arch/arm/boot/dts/versatile-ab.dts
index 27d0d9c8adf3..01f40197ea13 100644
--- a/arch/arm/boot/dts/versatile-ab.dts
+++ b/arch/arm/boot/dts/versatile-ab.dts
@@ -252,6 +252,11 @@
                         #size-cells = <1>;
                         ranges = <0 0x10000000 0x10000>;
 
+                        sysreg@0 {
+                                compatible = "arm,versatile-sysreg", "syscon";
+                                reg = <0x00000 0x1000>;
+                        };
+
                         aaci@4000 {
                                 compatible = "arm,primecell";
                                 reg = <0x4000 0x1000>;