From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YgCZO-00016F-5G for barebox@lists.infradead.org; Thu, 09 Apr 2015 13:32:35 +0000 From: Markus Pargmann Date: Thu, 9 Apr 2015 15:31:56 +0200 Message-Id: <1428586316-17722-2-git-send-email-mpa@pengutronix.de> In-Reply-To: <1428586316-17722-1-git-send-email-mpa@pengutronix.de> References: <1428586316-17722-1-git-send-email-mpa@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH v2 2/2] wdog: imx-wd: Disable watchdog powerdown counter To: barebox@lists.infradead.org Disable the watchdog powerdown counter at start. Otherwise this may trigger a reset or poweroff over the WDOG_B line to a PMIC. This counter is set to 16 seconds after poweron. Signed-off-by: Markus Pargmann --- drivers/watchdog/imxwd.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/watchdog/imxwd.c b/drivers/watchdog/imxwd.c index 6e9edd9d81cf..221ad93107f4 100644 --- a/drivers/watchdog/imxwd.c +++ b/drivers/watchdog/imxwd.c @@ -46,6 +46,7 @@ struct imx_wd { #define IMX21_WDOG_WCR 0x00 /* Watchdog Control Register */ #define IMX21_WDOG_WSR 0x02 /* Watchdog Service Register */ #define IMX21_WDOG_WSTR 0x04 /* Watchdog Status Register */ +#define IMX21_WDOG_WMCR 0x08 /* Misc Register */ #define IMX21_WDOG_WCR_WDE (1 << 2) #define IMX21_WDOG_WCR_SRS (1 << 4) #define IMX21_WDOG_WCR_WDA (1 << 5) @@ -158,6 +159,11 @@ static int imx21_wd_init(struct imx_wd *priv) { imx_watchdog_detect_reset_source(priv); + /* + * Disable watchdog powerdown counter + */ + writew(0x0, priv->base + IMX21_WDOG_WMCR); + return 0; } -- 2.1.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox