From: Lee Jones <lee.jones@linaro.org> To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: lee.jones@linaro.org, kernel@stlinux.com, rtc-linux@googlegroups.com, wim@iguana.be, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux@roeck-us.net, david.paris@st.com Subject: [PATCH v3 4/8] watchdog: bindings: Provide ST bindings for ST's LPC Watchdog device Date: Wed, 18 Feb 2015 11:49:10 +0000 [thread overview] Message-ID: <1424260154-12868-5-git-send-email-lee.jones@linaro.org> (raw) In-Reply-To: <1424260154-12868-1-git-send-email-lee.jones@linaro.org> On current ST platforms the LPC controls a number of functions including Watchdog and Real Time Clock. This patch provides the bindings used to configure LPC in Watchdog mode. Signed-off-by: Lee Jones <lee.jones@linaro.org> --- .../devicetree/bindings/watchdog/st_lpc_wdt.txt | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/st_lpc_wdt.txt diff --git a/Documentation/devicetree/bindings/watchdog/st_lpc_wdt.txt b/Documentation/devicetree/bindings/watchdog/st_lpc_wdt.txt new file mode 100644 index 0000000..1bdf023 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/st_lpc_wdt.txt @@ -0,0 +1,38 @@ +STMicroelectronics Low Power Controller (LPC) - Watchdog +======================================================== + +LPC currently supports Watchdog OR Real Time Clock functionality. + +[See: ../rtc/rtc-st-lpc.txt for RTC options] + +Required properties + +- compatible : Must be one of: "st,stih407-lpc" "st,stih416-lpc" + "st,stih415-lpc" "st,stid127-lpc" +- reg : LPC registers base address + size +- interrupts : LPC interrupt line number and associated flags +- clocks : Clock used by LPC device (See: ../clock/clock-bindings.txt) +- st,lpc-mode : The LPC can run either one of two modes ST_LPC_MODE_RTC [0] or + ST_LPC_MODE_WDT [1]. One (and only one) mode must be + selected. + +Required properties [watchdog mode] + +- st,syscfg : Phandle to syscfg node used to enable watchdog and configure + CPU reset type. +- timeout-sec : Watchdog timeout in seconds + +Optional properties [watchdog mode] + +- st,warm-reset : If present reset type will be 'warm' - if not it will be cold + +Example: + lpc@fde05000 { + compatible = "st,stih416-lpc-watchdog"; + reg = <0xfde05000 0x1000>; + clocks = <&clk_s_d3_flexgen CLK_LPC_0>; + st,syscfg = <&syscfg_core>; + timeout-sec = <120>; + st,lpc-mode = <ST_LPC_MODE_WDT>; + st,warm-reset; + }; -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: lee.jones@linaro.org (Lee Jones) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 4/8] watchdog: bindings: Provide ST bindings for ST's LPC Watchdog device Date: Wed, 18 Feb 2015 11:49:10 +0000 [thread overview] Message-ID: <1424260154-12868-5-git-send-email-lee.jones@linaro.org> (raw) In-Reply-To: <1424260154-12868-1-git-send-email-lee.jones@linaro.org> On current ST platforms the LPC controls a number of functions including Watchdog and Real Time Clock. This patch provides the bindings used to configure LPC in Watchdog mode. Signed-off-by: Lee Jones <lee.jones@linaro.org> --- .../devicetree/bindings/watchdog/st_lpc_wdt.txt | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/st_lpc_wdt.txt diff --git a/Documentation/devicetree/bindings/watchdog/st_lpc_wdt.txt b/Documentation/devicetree/bindings/watchdog/st_lpc_wdt.txt new file mode 100644 index 0000000..1bdf023 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/st_lpc_wdt.txt @@ -0,0 +1,38 @@ +STMicroelectronics Low Power Controller (LPC) - Watchdog +======================================================== + +LPC currently supports Watchdog OR Real Time Clock functionality. + +[See: ../rtc/rtc-st-lpc.txt for RTC options] + +Required properties + +- compatible : Must be one of: "st,stih407-lpc" "st,stih416-lpc" + "st,stih415-lpc" "st,stid127-lpc" +- reg : LPC registers base address + size +- interrupts : LPC interrupt line number and associated flags +- clocks : Clock used by LPC device (See: ../clock/clock-bindings.txt) +- st,lpc-mode : The LPC can run either one of two modes ST_LPC_MODE_RTC [0] or + ST_LPC_MODE_WDT [1]. One (and only one) mode must be + selected. + +Required properties [watchdog mode] + +- st,syscfg : Phandle to syscfg node used to enable watchdog and configure + CPU reset type. +- timeout-sec : Watchdog timeout in seconds + +Optional properties [watchdog mode] + +- st,warm-reset : If present reset type will be 'warm' - if not it will be cold + +Example: + lpc at fde05000 { + compatible = "st,stih416-lpc-watchdog"; + reg = <0xfde05000 0x1000>; + clocks = <&clk_s_d3_flexgen CLK_LPC_0>; + st,syscfg = <&syscfg_core>; + timeout-sec = <120>; + st,lpc-mode = <ST_LPC_MODE_WDT>; + st,warm-reset; + }; -- 1.9.1
next prev parent reply other threads:[~2015-02-18 11:51 UTC|newest] Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-02-18 11:49 [PATCH v3 0/8] mfd: watchdog: rtc: New driver for ST's LPC IP Lee Jones 2015-02-18 11:49 ` Lee Jones 2015-02-18 11:49 ` Lee Jones 2015-02-18 11:49 ` [PATCH v3 1/8] ARM: multi_v7_defconfig: Enable support for ST's LPC Watchdog Lee Jones 2015-02-18 11:49 ` Lee Jones 2015-02-18 11:49 ` [PATCH v3 2/8] ARM: multi_v7_defconfig: Enable support for ST's LPC RTC Lee Jones 2015-02-18 11:49 ` Lee Jones 2015-02-18 11:49 ` Lee Jones 2015-02-18 11:49 ` [PATCH v3 3/8] ARM: STi: DT: STiH407: Add Device Tree node for the LPC Lee Jones 2015-02-18 11:49 ` Lee Jones 2015-02-18 11:49 ` Lee Jones [this message] 2015-02-18 11:49 ` [PATCH v3 4/8] watchdog: bindings: Provide ST bindings for ST's LPC Watchdog device Lee Jones 2015-02-18 11:49 ` [PATCH v3 5/8] watchdog: st_wdt: Add new driver for ST's LPC Watchdog Lee Jones 2015-02-18 11:49 ` Lee Jones 2015-02-23 10:25 ` [STLinux Kernel] " Peter Griffin 2015-02-23 10:25 ` Peter Griffin 2015-03-02 7:56 ` Peter Griffin 2015-03-02 7:56 ` Peter Griffin 2015-03-02 7:56 ` Peter Griffin 2015-02-23 19:50 ` [v3,5/8] " Guenter Roeck 2015-02-23 19:50 ` Guenter Roeck 2015-02-18 11:49 ` [PATCH v3 6/8] rtc: bindings: Provide ST bindings for ST's LPC RTC device Lee Jones 2015-02-18 11:49 ` Lee Jones 2015-02-18 11:49 ` Lee Jones 2015-02-18 11:49 ` [PATCH v3 7/8] rtc: st: add new driver for ST's LPC RTC Lee Jones 2015-02-18 11:49 ` Lee Jones 2015-02-23 10:12 ` [STLinux Kernel] " Peter Griffin 2015-02-23 10:12 ` Peter Griffin 2015-02-23 10:12 ` Peter Griffin 2015-02-25 11:08 ` Lee Jones 2015-02-25 11:08 ` Lee Jones 2015-02-25 11:08 ` Lee Jones 2015-02-25 11:19 ` Russell King - ARM Linux 2015-02-25 11:19 ` Russell King - ARM Linux 2015-02-25 11:19 ` Russell King - ARM Linux 2015-02-25 14:28 ` Peter Griffin 2015-02-25 14:28 ` Peter Griffin 2015-02-18 11:49 ` [PATCH v3 8/8] MAINTAINERS: Add Watchdog and RTC files to STI's maintainer entry Lee Jones 2015-02-18 11:49 ` Lee Jones
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