From: Jacky Bai <ping.bai@nxp.com>
To: "daniel.lezcano@linaro.org" <daniel.lezcano@linaro.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"shawnguo@kernel.org" <shawnguo@kernel.org>,
"A.s. Dong" <aisheng.dong@nxp.com>
Cc: dl-linux-imx <linux-imx@nxp.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH 1/2] Doc: bindings: Add binding doc for nxp system counter timer
Date: Fri, 9 Nov 2018 10:43:05 +0000 [thread overview]
Message-ID: <1541760402-17274-1-git-send-email-ping.bai@nxp.com> (raw)
Add the binding doc for nxp system counter timer module.
Signed-off-by: Bai Ping <ping.bai@nxp.com>
---
.../devicetree/bindings/timer/nxp,sysctr_timer.txt | 28 ++++++++++++++++++++++
1 file changed, 28 insertions(+)
create mode 100644 Documentation/devicetree/bindings/timer/nxp,sysctr_timer.txt
diff --git a/Documentation/devicetree/bindings/timer/nxp,sysctr_timer.txt b/Documentation/devicetree/bindings/timer/nxp,sysctr_timer.txt
new file mode 100644
index 0000000..6c0aeed
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/nxp,sysctr_timer.txt
@@ -0,0 +1,28 @@
+NXP System Counter Module(sys_ctr)
+
+The system counter(sys_ctr) is a programmable system counter which provides
+a shared time base to Cortex A15, A7, A53, A73, etc. it is intended for use in
+applications where the counter is always powered and support multiple,
+unrelated clocks.
+
+Required properties:
+
+- compatible : should be "nxp,sysctr-timer"
+- reg : Specifies the base physical address and size of the comapre
+ frame and the counter control, read & compare.
+- interrupts : should be the compare frames' interrupt
+- clock-frequency : Specifies the counter clock frequency.
+
+Example:
+
+ system_counter: timer@306a0000 {
+ compatible = "nxp,sysctr-timer";
+ reg = <0x0 0x306a0000 0x0 0x10000>, /* system-counter-rd base */
+ <0x0 0x306b0000 0x0 0x10000>, /* system-counter-cmp base */
+ <0x0 0x306c0000 0x0 0x10000>; /* system-counter-ctrl base */
+ clock-frequency = <8000000>;
+ interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+
--
1.9.1
next reply other threads:[~2018-11-09 10:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-09 10:43 Jacky Bai [this message]
2018-11-09 10:43 ` [PATCH 2/2] driver: clocksource: Add nxp system counter timer driver support Jacky Bai
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=1541760402-17274-1-git-send-email-ping.bai@nxp.com \
--to=ping.bai@nxp.com \
--cc=aisheng.dong@nxp.com \
--cc=daniel.lezcano@linaro.org \
--cc=linux-imx@nxp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=robh+dt@kernel.org \
--cc=shawnguo@kernel.org \
--cc=tglx@linutronix.de \
/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).