[PATCH v7 2/3] documentation: Add secure monitor binding documentation

[Carlo Caione <carlo-KA+7E9HrN00dnm+yROfE0A@public.gmane.org>]

From: Carlo Caione <carlo-6IF/jdPJHihWk0Htik3J/w@public.gmane.org>

Add the binding documentation for the Amlogic secure monitor driver.

Signed-off-by: Carlo Caione <carlo-6IF/jdPJHihWk0Htik3J/w@public.gmane.org>
---
 .../bindings/firmware/meson/meson_sm.txt           | 27 ++++++++++++++++++++++
 1 file changed, 27 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..d017675
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/meson/meson_sm.txt
@@ -0,0 +1,27 @@
+* 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";
+		};
+	};
+
+Example of the node using the secure monitor:
+
+	efuse: efuse {
+		compatible = "amlogic,meson-gxbb-efuse";
+		secure-monitor = <&sm>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		...
+	};
+
-- 
2.7.4

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