From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bhupesh Sharma Subject: [PATCH 1/2] Documentation: DT: Add entry for ARM SP805-WDT Date: Mon, 16 Nov 2015 19:54:42 +0530 Message-ID: <1447683883-6600-2-git-send-email-bhupesh.sharma@freescale.com> References: <1447683883-6600-1-git-send-email-bhupesh.sharma@freescale.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1447683883-6600-1-git-send-email-bhupesh.sharma-KZfg59tc24xl57MIdRCFDg@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: arnd-r2nGTMty4D4@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: bhupesh.linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, Catalin.Marinas-5wv7dgnIgG8@public.gmane.org, bhupesh.sharma-KZfg59tc24xl57MIdRCFDg@public.gmane.org, LeoLi-KZfg59tc24xl57MIdRCFDg@public.gmane.org, scottwood-KZfg59tc24xl57MIdRCFDg@public.gmane.org, stuart.yoder-KZfg59tc24xl57MIdRCFDg@public.gmane.org List-Id: devicetree@vger.kernel.org This patch adds a devicetree binding documentation for ARM's SP805 WatchDog Timer. Signed-off-by: Bhupesh Sharma --- .../devicetree/bindings/watchdog/sp805-wdt.txt | 33 ++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/sp805-wdt.txt diff --git a/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt b/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt new file mode 100644 index 0000000..ec70fe9 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt @@ -0,0 +1,33 @@ +* ARM SP805 Watchdog Timer (WDT) Controller + +SP805 WDT is a ARM Primecell Peripheral and has a standard-id register that +can be used to identify the peripheral type, vendor, and revision. +This value can be used for driver matching. + +Note that the current sp805_wdt driver relies on the 'drivers/amba/bus.c' +framework to invoke the probe function of the sp805_wdt driver using the +unique PRIMECELL identifiers of the sp805 wdt IP. + +As SP805 WDT is a primecell IP, it follows the base bindings specified in +'arm/primecell.txt' + +Required properties: +- compatible : Should be "arm,sp805-wdt", "arm,primecell" +- reg : Base address and size of the watchdog timer registers. +- interrupts : Should specify WDT interrupt number. + +Optional properties: +- clocks : From common clock binding. First clock is phandle to clock for apb + pclk. Additional clocks are optional. +- clock-names : From common clock binding. Shall be "apb_pclk" for first clock. + +Examples: + + cluster1_core0_watchdog: wdt@c000000 { + compatible = "arm,sp805-wdt", "arm,primecell"; + reg = <0x0 0xc000000 0x0 0x1000>; + interrupts = <1 12 0x8>; /* PPI, Level low type */ + clocks = <&clockgen 4 3>; + clock-names = "apb_pclk"; + }; + -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html