From: Carlo Caione <redacted>

Add the binding documentation for the Amlogic secure monitor driver.

Signed-off-by: Carlo Caione <redacted>
Acked-by: Rob Herring <robh@kernel.org>
---
 .../devicetree/bindings/firmware/meson/meson_sm.txt       | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/firmware/meson/meson_sm.txt

diff --git a/Documentation/devicetree/bindings/firmware/meson/meson_sm.txt b/Documentation/devicetree/bindings/firmware/meson/meson_sm.txt
new file mode 100644
index 0000000..c248cd4
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/meson/meson_sm.txt

@@ -0,0 +1,15 @@
+* Amlogic Secure Monitor
+
+In the Amlogic SoCs the Secure Monitor code is used to provide access to the
+NVMEM, enable JTAG, set USB boot, etc...
+
+Required properties for the secure monitor node:
+- compatible: Should be "amlogic,meson-gxbb-sm"
+
+Example:
+
+	firmware {
+		sm: secure-monitor {
+			compatible = "amlogic,meson-gxbb-sm";
+		};
+	};

-- 
2.7.4