From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Yan Subject: [PATCH v1 1/6] dt-bindings: misc: add document for reboot-mode driver Date: Tue, 22 Dec 2015 17:05:24 +0800 Message-ID: <1450775124-23966-1-git-send-email-andy.yan@rock-chips.com> References: <1450774949-23901-1-git-send-email-andy.yan@rock-chips.com> Return-path: In-Reply-To: <1450774949-23901-1-git-send-email-andy.yan@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org To: robh+dt@kernel.org, heiko@sntech.de, arnd@arndb.de, john.stultz@linaro.org Cc: sjg@chromium.org, alexandre.belloni@free-electrons.com, treding@nvidia.com, galak@codeaurora.org, ijc+devicetree@hellion.org.uk, wxt@rock-chips.com, catalin.marinas@arm.com, olof@lixom.net, geert+renesas@glider.be, linux-rockchip@lists.infradead.org, dbaryshkov@gmail.com, sre@kernel.org, jun.nie@linaro.org, pawel.moll@arm.com, will.deacon@arm.com, akpm@linux-foundation.org, devicetree@vger.kernel.org, linux@arm.linux.org.uk, gregkh@linuxfoundation.org, joel@jms.id.au, linux-arm-kernel@lists.infradead.org, lorenzo.pieralisi@arm.com, khilman@linaro.org, moritz.fischer@ettus.com, linux-kernel@vger.kernel.org, mark.rutland@arm.com, Andy Yan List-Id: devicetree@vger.kernel.org add device tree bindings document for reboot-mode driver Signed-off-by: Andy Yan --- 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