From: Han Nandor <nandor.han@vaisala.com>
To: "sre@kernel.org" <sre@kernel.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"mark.rutland@arm.com" <mark.rutland@arm.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Cc: Han Nandor <nandor.han@vaisala.com>
Subject: [PATCH v4 2/2] dt-bindings: power: reset: add document for NVMEM based reboot-mode
Date: Wed, 15 May 2019 10:47:15 +0000 [thread overview]
Message-ID: <20190515104658.25535-3-nandor.han@vaisala.com> (raw)
Message-ID: <20190515104715.IU7be-uVksjEjC-REF0mvGh4VAISvFiBV9qmNkgl5tQ@z> (raw)
In-Reply-To: <20190515104658.25535-1-nandor.han@vaisala.com>
Add the device tree bindings document for the NVMEM based reboot-mode
driver.
Signed-off-by: Nandor Han <nandor.han@vaisala.com>
---
.../power/reset/nvmem-reboot-mode.txt | 26 +++++++++++++++++++
1 file changed, 26 insertions(+)
create mode 100644 Documentation/devicetree/bindings/power/reset/nvmem-reboot-mode.txt
diff --git a/Documentation/devicetree/bindings/power/reset/nvmem-reboot-mode.txt b/Documentation/devicetree/bindings/power/reset/nvmem-reboot-mode.txt
new file mode 100644
index 000000000000..752d6126d5da
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/reset/nvmem-reboot-mode.txt
@@ -0,0 +1,26 @@
+NVMEM reboot mode driver
+
+This driver gets reboot mode magic value from reboot-mode driver
+and stores it in a NVMEM cell named "reboot-mode". Then the bootloader
+can read it and take different action according to the magic
+value stored.
+
+Required properties:
+- compatible: should be "nvmem-reboot-mode".
+- nvmem-cells: A phandle to the reboot mode provided by a nvmem device.
+- nvmem-cell-names: Should be "reboot-mode".
+
+The rest of the properties should follow the generic reboot-mode description
+found in reboot-mode.txt
+
+Example:
+ reboot-mode {
+ compatible = "nvmem-reboot-mode";
+ nvmem-cells = <&reboot_mode>;
+ nvmem-cell-names = "reboot-mode";
+
+ mode-normal = <0xAAAA5501>;
+ mode-bootloader = <0xBBBB5500>;
+ mode-recovery = <0xCCCC5502>;
+ mode-test = <0xDDDD5503>;
+ };
--
2.17.2
next prev parent reply other threads:[~2019-05-15 10:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-15 10:47 [PATCH v4 0/2] Use NVMEM as reboot-mode write interface Han Nandor
2019-05-15 10:47 ` Han Nandor
2019-05-15 10:47 ` [PATCH v4 1/2] power: reset: nvmem-reboot-mode: use NVMEM as reboot mode " Han Nandor
2019-05-15 10:47 ` Han Nandor
2019-05-15 10:47 ` Han Nandor [this message]
2019-05-15 10:47 ` [PATCH v4 2/2] dt-bindings: power: reset: add document for NVMEM based reboot-mode Han Nandor
2019-06-13 21:02 ` Rob Herring
2019-06-27 18:33 ` [PATCH v4 0/2] Use NVMEM as reboot-mode write interface Sebastian Reichel
2019-06-28 4:49 ` Nandor Han
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190515104658.25535-3-nandor.han@vaisala.com \
--to=nandor.han@vaisala.com \
--cc=devicetree@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=robh+dt@kernel.org \
--cc=sre@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).