linux-kernel - [PATCH 1/6] dt-bindings: misc: add document for reboot-mode driver

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Message-Id: <1450697433-30045-1-git-send-email-andy.yan@rock-chips.com>
Date:	Mon, 21 Dec 2015 19:30:33 +0800
From:	Andy Yan <andy.yan@...k-chips.com>
To:	robh+dt@...nel.org, heiko@...ech.de, arnd@...db.de,
	john.stultz@...aro.org
Cc:	sjg@...omium.org, alexandre.belloni@...e-electrons.com,
	treding@...dia.com, galak@...eaurora.org,
	ijc+devicetree@...lion.org.uk, wxt@...k-chips.com,
	catalin.marinas@....com, olof@...om.net, geert+renesas@...der.be,
	linux-rockchip@...ts.infradead.org, dbaryshkov@...il.com,
	sre@...nel.org, jun.nie@...aro.org, pawel.moll@....com,
	will.deacon@....com, akpm@...ux-foundation.org,
	devicetree@...r.kernel.org, linux@....linux.org.uk,
	gregkh@...uxfoundation.org, joel@....id.au,
	linux-arm-kernel@...ts.infradead.org, lorenzo.pieralisi@....com,
	khilman@...aro.org, moritz.fischer@...us.com,
	linux-kernel@...r.kernel.org, mark.rutland@....com,
	Andy Yan <andy.yan@...k-chips.com>
Subject: [PATCH 1/6] dt-bindings: misc: add document for reboot-mode driver

add device tree bindings document for reboot-mode driver

Signed-off-by: Andy Yan <andy.yan@...k-chips.com>

---

 .../devicetree/bindings/misc/reboot-mode.txt       | 41 ++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/misc/reboot-mode.txt

diff --git a/Documentation/devicetree/bindings/misc/reboot-mode.txt b/Documentation/devicetree/bindings/misc/reboot-mode.txt
new file mode 100644
index 0000000..68346b3
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/reboot-mode.txt
@@ -0,0 +1,41 @@
+Generic reboot mode communication driver
+
+This driver get reboot mode arguments from userspace
+and stores it in special register or ram . Then the
+bootloader will read it and take different action
+according the argument stored.
+
+Required properties:
+        - compatible = "reboot-mode" or other vendor compatible string;
+
+Each mode is represented as a sub-node of reboot_mode:
+
+Subnode properties:
+        - linux,mode: reboot mode command,such as "loader","recover", "fastboot".
+        - linux,magic: magic number for the mode, this is vendor specific.
+
+example:
+	reboot_mode {
+		compatible = "rockchip,reboot-mode";
+		rockchip,regmap = <&pmu>;
+		offset = <0x40>;
+		loader {
+			linux,mode = "loader";
+			linux,magic = <0x5242C301>;
+		};
+
+		maskrom {
+			linux,mode = "maskrom";
+			linux,magic = <0x5242C302>;
+		};
+
+		recovery {
+			linux,mode = "recovery";
+			linux,magic = <0x5242C303>;
+		};
+
+		fastboot {
+			linux,mode = "fastboot";
+			linux,magic = <0x5242C309>;
+		};
+        };
-- 
1.9.1


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