From patchwork Fri Aug 9 07:13:59 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 11085557 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8D90E14D5 for ; Fri, 9 Aug 2019 07:37:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 77AEE28BC3 for ; Fri, 9 Aug 2019 07:37:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6B77728BDF; Fri, 9 Aug 2019 07:37:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 13AD828C02 for ; Fri, 9 Aug 2019 07:37:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405711AbfHIHhJ (ORCPT ); Fri, 9 Aug 2019 03:37:09 -0400 Received: from inva020.nxp.com ([92.121.34.13]:59678 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405697AbfHIHhJ (ORCPT ); Fri, 9 Aug 2019 03:37:09 -0400 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id BAAB01A036E; Fri, 9 Aug 2019 09:37:07 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 7143D1A015F; Fri, 9 Aug 2019 09:36:59 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 849E54030D; Fri, 9 Aug 2019 15:36:49 +0800 (SGT) From: Anson Huang To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux@armlinux.org.uk, otavio@ossystems.com.br, leonard.crestez@nxp.com, schnitzeltony@gmail.com, u.kleine-koenig@pengutronix.de, jan.tuerk@emtrion.com, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Linux-imx@nxp.com Subject: [PATCH 1/4] dt-bindings: watchdog: Add i.MX7ULP bindings Date: Fri, 9 Aug 2019 15:13:59 +0800 Message-Id: <1565334842-28161-1-git-send-email-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-watchdog-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add the watchdog bindings for Freescale i.MX7ULP. Signed-off-by: Anson Huang --- .../bindings/watchdog/fsl-imx7ulp-wdt.txt | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.txt diff --git a/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.txt b/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.txt new file mode 100644 index 0000000..d83fc5c --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.txt @@ -0,0 +1,22 @@ +* Freescale i.MX7ULP Watchdog Timer (WDT) Controller + +Required properties: +- compatible : Should be "fsl,imx7ulp-wdt" +- reg : Should contain WDT registers location and length +- interrupts : Should contain WDT interrupt +- clocks: Should contain a phandle pointing to the gated peripheral clock. + +Optional properties: +- timeout-sec : Contains the watchdog timeout in seconds + +Examples: + +wdog1: wdog@403d0000 { + compatible = "fsl,imx7ulp-wdt"; + reg = <0x403d0000 0x10000>; + interrupts = ; + clocks = <&pcc2 IMX7ULP_CLK_WDG1>; + assigned-clocks = <&pcc2 IMX7ULP_CLK_WDG1>; + assigned-clocks-parents = <&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>; + timeout-sec = <40>; +}; From patchwork Fri Aug 9 07:14:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 11085555 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1C71B746 for ; Fri, 9 Aug 2019 07:37:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0566728BC3 for ; Fri, 9 Aug 2019 07:37:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id ECE1328BE0; Fri, 9 Aug 2019 07:37:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4815828BC3 for ; Fri, 9 Aug 2019 07:37:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405836AbfHIHhN (ORCPT ); Fri, 9 Aug 2019 03:37:13 -0400 Received: from inva020.nxp.com ([92.121.34.13]:59764 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405834AbfHIHhM (ORCPT ); Fri, 9 Aug 2019 03:37:12 -0400 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 9BEA01A00F1; Fri, 9 Aug 2019 09:37:09 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 208D91A0366; Fri, 9 Aug 2019 09:37:01 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 408164029A; Fri, 9 Aug 2019 15:36:51 +0800 (SGT) From: Anson Huang To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux@armlinux.org.uk, otavio@ossystems.com.br, leonard.crestez@nxp.com, schnitzeltony@gmail.com, u.kleine-koenig@pengutronix.de, jan.tuerk@emtrion.com, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Linux-imx@nxp.com Subject: [PATCH 2/4] watchdog: Add i.MX7ULP watchdog support Date: Fri, 9 Aug 2019 15:14:00 +0800 Message-Id: <1565334842-28161-2-git-send-email-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1565334842-28161-1-git-send-email-Anson.Huang@nxp.com> References: <1565334842-28161-1-git-send-email-Anson.Huang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-watchdog-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The i.MX7ULP Watchdog Timer (WDOG) module is an independent timer that is available for system use. It provides a safety feature to ensure that software is executing as planned and that the CPU is not stuck in an infinite loop or executing unintended code. If the WDOG module is not serviced (refreshed) within a certain period, it resets the MCU. Add driver support for i.MX7ULP watchdog. Signed-off-by: Anson Huang --- drivers/watchdog/Kconfig | 13 +++ drivers/watchdog/Makefile | 1 + drivers/watchdog/imx7ulp_wdt.c | 221 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 235 insertions(+) create mode 100644 drivers/watchdog/imx7ulp_wdt.c diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 8188963..0884e53 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -740,6 +740,19 @@ config IMX_SC_WDT To compile this driver as a module, choose M here: the module will be called imx_sc_wdt. +config IMX7ULP_WDT + tristate "IMX7ULP Watchdog" + depends on ARCH_MXC || COMPILE_TEST + select WATCHDOG_CORE + help + This is the driver for the hardware watchdog on the Freescale + IMX7ULP and later processors. If you have one of these + processors and wish to have watchdog support enabled, + say Y, otherwise say N. + + To compile this driver as a module, choose M here: the + module will be called imx7ulp_wdt. + config UX500_WATCHDOG tristate "ST-Ericsson Ux500 watchdog" depends on MFD_DB8500_PRCMU diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index 7caa920..7d32537 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -69,6 +69,7 @@ obj-$(CONFIG_TS4800_WATCHDOG) += ts4800_wdt.o obj-$(CONFIG_TS72XX_WATCHDOG) += ts72xx_wdt.o obj-$(CONFIG_IMX2_WDT) += imx2_wdt.o obj-$(CONFIG_IMX_SC_WDT) += imx_sc_wdt.o +obj-$(CONFIG_IMX7ULP_WDT) += imx7ulp_wdt.o obj-$(CONFIG_UX500_WATCHDOG) += ux500_wdt.o obj-$(CONFIG_RETU_WATCHDOG) += retu_wdt.o obj-$(CONFIG_BCM2835_WDT) += bcm2835_wdt.o diff --git a/drivers/watchdog/imx7ulp_wdt.c b/drivers/watchdog/imx7ulp_wdt.c new file mode 100644 index 0000000..8d56023 --- /dev/null +++ b/drivers/watchdog/imx7ulp_wdt.c @@ -0,0 +1,221 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2019 NXP. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define WDOG_CS 0x0 +#define WDOG_CS_CMD32EN (1 << 13) +#define WDOG_CS_ULK (1 << 11) +#define WDOG_CS_RCS (1 << 10) +#define WDOG_CS_EN (1 << 7) +#define WDOG_CS_UPDATE (1 << 5) + +#define WDOG_CNT 0x4 +#define WDOG_TOVAL 0x8 + +#define REFRESH_SEQ0 0xA602 +#define REFRESH_SEQ1 0xB480 +#define REFRESH ((REFRESH_SEQ1 << 16) | (REFRESH_SEQ0)) + +#define UNLOCK_SEQ0 0xC520 +#define UNLOCK_SEQ1 0xD928 +#define UNLOCK ((UNLOCK_SEQ1 << 16) | (UNLOCK_SEQ0)) + +#define DEFAULT_TIMEOUT 60 +#define MAX_TIMEOUT 128 + +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0000); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); + +struct imx7ulp_wdt_device { + struct notifier_block restart_handler; + struct watchdog_device wdd; + void __iomem *base; + int rate; +}; + +static inline void imx7ulp_wdt_enable(void __iomem *base, bool enable) +{ + u32 val = readl(base + WDOG_CS); + + writel(UNLOCK, base + WDOG_CNT); + if (enable) + writel(val | WDOG_CS_EN, base + WDOG_CS); + else + writel(val & ~WDOG_CS_EN, base + WDOG_CS); +} + +static inline bool imx7ulp_wdt_is_enabled(void __iomem *base) +{ + u32 val = readl(base + WDOG_CS); + + return val & WDOG_CS_EN; +} + +static int imx7ulp_wdt_ping(struct watchdog_device *wdog) +{ + struct imx7ulp_wdt_device *wdt = watchdog_get_drvdata(wdog); + + writel(REFRESH, wdt->base + WDOG_CNT); + + return 0; +} + +static int imx7ulp_wdt_start(struct watchdog_device *wdog) +{ + struct imx7ulp_wdt_device *wdt = watchdog_get_drvdata(wdog); + + imx7ulp_wdt_enable(wdt->base, true); + + return 0; +} + +static int imx7ulp_wdt_stop(struct watchdog_device *wdog) +{ + struct imx7ulp_wdt_device *wdt = watchdog_get_drvdata(wdog); + + imx7ulp_wdt_enable(wdt->base, false); + + return 0; +} + +static int imx7ulp_wdt_set_timeout(struct watchdog_device *wdog, + unsigned int timeout) +{ + struct imx7ulp_wdt_device *wdt = watchdog_get_drvdata(wdog); + u32 val = wdt->rate * timeout; + + writel(UNLOCK, wdt->base + WDOG_CNT); + writel(val, wdt->base + WDOG_TOVAL); + + wdog->timeout = timeout; + + return 0; +} + +static const struct watchdog_ops imx7ulp_wdt_ops = { + .owner = THIS_MODULE, + .start = imx7ulp_wdt_start, + .stop = imx7ulp_wdt_stop, + .ping = imx7ulp_wdt_ping, + .set_timeout = imx7ulp_wdt_set_timeout, +}; + +static const struct watchdog_info imx7ulp_wdt_info = { + .identity = "i.MX7ULP watchdog timer", + .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | + WDIOF_MAGICCLOSE, +}; + +static inline void imx7ulp_wdt_init(void __iomem *base, unsigned int timeout) +{ + u32 val; + + /* unlock the wdog for reconfiguration */ + writel_relaxed(UNLOCK_SEQ0, base + WDOG_CNT); + writel_relaxed(UNLOCK_SEQ1, base + WDOG_CNT); + + /* set an initial timeout value in TOVAL */ + writel(timeout, base + WDOG_TOVAL); + /* enable 32bit command sequence and reconfigure */ + val = (1 << 13) | (1 << 8) | (1 << 5); + writel(val, base + WDOG_CS); +} + +static int imx7ulp_wdt_probe(struct platform_device *pdev) +{ + struct imx7ulp_wdt_device *imx7ulp_wdt; + struct device *dev = &pdev->dev; + struct watchdog_device *wdog; + int ret; + + imx7ulp_wdt = devm_kzalloc(&pdev->dev, + sizeof(*imx7ulp_wdt), GFP_KERNEL); + if (!imx7ulp_wdt) + return -ENOMEM; + + platform_set_drvdata(pdev, imx7ulp_wdt); + + imx7ulp_wdt->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(imx7ulp_wdt->base)) + return PTR_ERR(imx7ulp_wdt->base); + + imx7ulp_wdt->rate = 1000; + wdog = &imx7ulp_wdt->wdd; + wdog->info = &imx7ulp_wdt_info; + wdog->ops = &imx7ulp_wdt_ops; + wdog->min_timeout = 1; + wdog->max_timeout = MAX_TIMEOUT; + wdog->parent = dev; + wdog->timeout = DEFAULT_TIMEOUT; + + watchdog_init_timeout(wdog, 0, dev); + watchdog_stop_on_reboot(wdog); + watchdog_stop_on_unregister(wdog); + watchdog_set_drvdata(wdog, imx7ulp_wdt); + imx7ulp_wdt_init(imx7ulp_wdt->base, wdog->timeout * imx7ulp_wdt->rate); + + ret = devm_watchdog_register_device(dev, wdog); + if (ret) + dev_err(dev, "Failed to register watchdog device\n"); + + return ret; +} + +static int __maybe_unused imx7ulp_wdt_suspend(struct device *dev) +{ + struct imx7ulp_wdt_device *imx7ulp_wdt = dev_get_drvdata(dev); + + if (watchdog_active(&imx7ulp_wdt->wdd)) + imx7ulp_wdt_stop(&imx7ulp_wdt->wdd); + + return 0; +} + +static int __maybe_unused imx7ulp_wdt_resume(struct device *dev) +{ + struct imx7ulp_wdt_device *imx7ulp_wdt = dev_get_drvdata(dev); + u32 timeout = imx7ulp_wdt->wdd.timeout * imx7ulp_wdt->rate; + + if (imx7ulp_wdt_is_enabled(imx7ulp_wdt->base)) + imx7ulp_wdt_init(imx7ulp_wdt->base, timeout); + + if (watchdog_active(&imx7ulp_wdt->wdd)) + imx7ulp_wdt_start(&imx7ulp_wdt->wdd); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(imx7ulp_wdt_pm_ops, imx7ulp_wdt_suspend, + imx7ulp_wdt_resume); + +static const struct of_device_id imx7ulp_wdt_dt_ids[] = { + { .compatible = "fsl,imx7ulp-wdt", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx7ulp_wdt_dt_ids); + +static struct platform_driver imx7ulp_wdt_driver = { + .probe = imx7ulp_wdt_probe, + .driver = { + .name = "imx7ulp-wdt", + .pm = &imx7ulp_wdt_pm_ops, + .of_match_table = imx7ulp_wdt_dt_ids, + }, +}; +module_platform_driver(imx7ulp_wdt_driver); + +MODULE_AUTHOR("Anson Huang "); +MODULE_DESCRIPTION("Freescale i.MX7ULP watchdog driver"); +MODULE_LICENSE("GPL v2"); From patchwork Fri Aug 9 07:14:01 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 11085551 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4483113B1 for ; Fri, 9 Aug 2019 07:37:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2EF7828BC3 for ; Fri, 9 Aug 2019 07:37:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2275328C02; Fri, 9 Aug 2019 07:37:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C4A4E28BC3 for ; Fri, 9 Aug 2019 07:37:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405851AbfHIHhN (ORCPT ); Fri, 9 Aug 2019 03:37:13 -0400 Received: from inva020.nxp.com ([92.121.34.13]:59836 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405697AbfHIHhN (ORCPT ); Fri, 9 Aug 2019 03:37:13 -0400 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 220D01A037D; Fri, 9 Aug 2019 09:37:11 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id CD2841A0377; Fri, 9 Aug 2019 09:37:02 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id E412A402BF; Fri, 9 Aug 2019 15:36:52 +0800 (SGT) From: Anson Huang To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux@armlinux.org.uk, otavio@ossystems.com.br, leonard.crestez@nxp.com, schnitzeltony@gmail.com, u.kleine-koenig@pengutronix.de, jan.tuerk@emtrion.com, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Linux-imx@nxp.com Subject: [PATCH 3/4] ARM: imx_v6_v7_defconfig: Enable CONFIG_IMX7ULP_WDT by default Date: Fri, 9 Aug 2019 15:14:01 +0800 Message-Id: <1565334842-28161-3-git-send-email-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1565334842-28161-1-git-send-email-Anson.Huang@nxp.com> References: <1565334842-28161-1-git-send-email-Anson.Huang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-watchdog-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Select CONFIG_IMX7ULP_WDT by default to support i.MX7ULP watchdog. Signed-off-by: Anson Huang --- arch/arm/configs/imx_v6_v7_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index bd2e2f5..f69075b 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -235,6 +235,7 @@ CONFIG_DA9062_WATCHDOG=y CONFIG_DA9063_WATCHDOG=m CONFIG_RN5T618_WATCHDOG=y CONFIG_IMX2_WDT=y +CONFIG_IMX7ULP_WDT=y CONFIG_MFD_DA9052_I2C=y CONFIG_MFD_DA9062=y CONFIG_MFD_DA9063=y From patchwork Fri Aug 9 07:14:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 11085547 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E1340746 for ; Fri, 9 Aug 2019 07:37:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CB61128BC3 for ; Fri, 9 Aug 2019 07:37:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BECF828BE0; Fri, 9 Aug 2019 07:37:19 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 785DC28BC3 for ; Fri, 9 Aug 2019 07:37:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405697AbfHIHhS (ORCPT ); Fri, 9 Aug 2019 03:37:18 -0400 Received: from inva021.nxp.com ([92.121.34.21]:60644 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405856AbfHIHhP (ORCPT ); Fri, 9 Aug 2019 03:37:15 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 3C73520034E; Fri, 9 Aug 2019 09:37:13 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id E7BBB200348; Fri, 9 Aug 2019 09:37:04 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 9CBE440293; Fri, 9 Aug 2019 15:36:54 +0800 (SGT) From: Anson Huang To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux@armlinux.org.uk, otavio@ossystems.com.br, leonard.crestez@nxp.com, schnitzeltony@gmail.com, u.kleine-koenig@pengutronix.de, jan.tuerk@emtrion.com, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Linux-imx@nxp.com Subject: [PATCH 4/4] ARM: dts: imx7ulp: Add wdog1 node Date: Fri, 9 Aug 2019 15:14:02 +0800 Message-Id: <1565334842-28161-4-git-send-email-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1565334842-28161-1-git-send-email-Anson.Huang@nxp.com> References: <1565334842-28161-1-git-send-email-Anson.Huang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-watchdog-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add wdog1 node to support watchdog driver. Signed-off-by: Anson Huang --- arch/arm/boot/dts/imx7ulp.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/boot/dts/imx7ulp.dtsi b/arch/arm/boot/dts/imx7ulp.dtsi index 6859a3a..1fdb5a35 100644 --- a/arch/arm/boot/dts/imx7ulp.dtsi +++ b/arch/arm/boot/dts/imx7ulp.dtsi @@ -264,6 +264,16 @@ #clock-cells = <1>; }; + wdog1: wdog@403d0000 { + compatible = "fsl,imx7ulp-wdt"; + reg = <0x403d0000 0x10000>; + interrupts = ; + clocks = <&pcc2 IMX7ULP_CLK_WDG1>; + assigned-clocks = <&pcc2 IMX7ULP_CLK_WDG1>; + assigned-clocks-parents = <&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>; + timeout-sec = <40>; + }; + pcc2: clock-controller@403f0000 { compatible = "fsl,imx7ulp-pcc2"; reg = <0x403f0000 0x10000>;