From: Linus Walleij <redacted>

This adds a device tree node for the U300 system controller
and remaps this dynamically instead of using hard-coded
virtual addresses. The board power set-up code is altered
to fetch a reference to the syscon using ampersand <&syscon>
notation. This way of passing a pointer to the syscon will
also be used by the clocks.

Signed-off-by: Linus Walleij <redacted>
---
 Documentation/devicetree/bindings/arm/ste-u300.txt | 30 +++++++++++++++++++---
 arch/arm/boot/dts/ste-u300.dts                     |  6 +++++
 arch/arm/mach-u300/core.c                          | 22 +++++++++++++---
 arch/arm/mach-u300/regulator.c                     | 21 ++++++++++++---
 4 files changed, 69 insertions(+), 10 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/ste-u300.txt b/Documentation/devicetree/bindings/arm/ste-u300.txt
index cd9001a..69b5ab0 100644
--- a/Documentation/devicetree/bindings/arm/ste-u300.txt
+++ b/Documentation/devicetree/bindings/arm/ste-u300.txt

@@ -8,15 +8,39 @@ Required root node property:
 
 compatible="stericsson,u300";
 
+Required node: syscon
+This contains the system controller.
+- compatible: must be "stericsson,u300-syscon".
+- reg: the base address and size of the system controller.
+