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Message-Id: <1450775124-23966-1-git-send-email-andy.yan@rock-chips.com>
Date: Tue, 22 Dec 2015 17:05:24 +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,
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khilman@...aro.org, moritz.fischer@...us.com,
linux-kernel@...r.kernel.org, mark.rutland@....com,
Andy Yan <andy.yan@...k-chips.com>
Subject: [PATCH v1 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>
---
Changes in v1: None
.../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..082bc0c
--- /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 required properties:
+ - linux,mode: reboot mode command,such as "loader","recovery", "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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