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Wed, 12 Dec 2018 05:28:24 +0000 Received: from VI1PR0402MB3519.eurprd04.prod.outlook.com ([fe80::15e0:9552:81b4:33b]) by VI1PR0402MB3519.eurprd04.prod.outlook.com ([fe80::15e0:9552:81b4:33b%4]) with mapi id 15.20.1404.026; Wed, 12 Dec 2018 05:28:23 +0000 From: Jacky Bai To: "daniel.lezcano@linaro.org" , "tglx@linutronix.de" , "robh+dt@kernel.org" , "shawnguo@kernel.org" , "mark.rutland@arm.com" , Aisheng Dong CC: "linux-kernel@vger.kernel.org" , "devicetree@vger.kernel.org" , dl-linux-imx Subject: [PATCH v2 1/2] Doc: bindings: Add binding doc for nxp system counter timer Thread-Topic: [PATCH v2 1/2] Doc: bindings: Add binding doc for nxp system counter timer Thread-Index: AQHUkduARh16C/9X+kahxefpAnw0hw== Date: Wed, 12 Dec 2018 05:28:23 +0000 Message-ID: <1544592770-19996-1-git-send-email-ping.bai@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 1.9.1 x-clientproxiedby: HK0PR01CA0001.apcprd01.prod.exchangelabs.com (2603:1096:203:92::13) To VI1PR0402MB3519.eurprd04.prod.outlook.com (2603:10a6:803:8::24) authentication-results: spf=none (sender IP is ) smtp.mailfrom=ping.bai@nxp.com; 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Signed-off-by: Bai Ping --- change v1->v2 - remove the blank line at EOF --- .../devicetree/bindings/timer/nxp,sysctr_timer.txt | 26 ++++++++++++++++++= ++++ 1 file changed, 26 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/nxp,sysctr_time= r.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..21f1527 --- /dev/null +++ b/Documentation/devicetree/bindings/timer/nxp,sysctr_timer.txt @@ -0,0 +1,26 @@ +NXP System Counter Module(sys_ctr) + +The system counter(sys_ctr) is a programmable system counter which provide= s +a shared time base to Cortex A15, A7, A53, A73, etc. it is intended for us= e 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 co= mapre + 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 =3D "nxp,sysctr-timer"; + reg =3D <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 =3D <8000000>; + interrupts =3D , + ; + }; --=20 1.9.1