From: Bruno Thomsen <bruno.thomsen@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org, laa@kamstrup.com, festevam@gmail.com,
s.hauer@pengutronix.de, clemens.ml@gmx.net,
Bruno Thomsen <bruno.thomsen@gmail.com>,
ksc@kamstrup.com, robh+dt@kernel.org, linux-imx@nxp.com,
kernel@pengutronix.de, shawnguo@kernel.org,
Markus Niebel <Markus.Niebel@tq-group.com>
Subject: [PATCH] ARM: dts: bugfix tqma7 soft reset issue
Date: Sun, 14 Apr 2019 14:06:29 +0200 [thread overview]
Message-ID: <20190414120629.8912-1-bruno.thomsen@gmail.com> (raw)
Running reboot command on the TQMa7 board would just hang infinite
at the end of the system shutdown process.
Handling of i.MX7 errata e10574:
Watchdog: A watchdog timeout or software trigger will not reset the SOC.
Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com>
Reviewed-by: Markus Niebel <Markus.Niebel@tq-group.com>
---
arch/arm/boot/dts/imx7-tqma7.dtsi | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm/boot/dts/imx7-tqma7.dtsi b/arch/arm/boot/dts/imx7-tqma7.dtsi
index 85fe461e5e67..896eff839d5e 100644
--- a/arch/arm/boot/dts/imx7-tqma7.dtsi
+++ b/arch/arm/boot/dts/imx7-tqma7.dtsi
@@ -228,5 +228,12 @@
};
&wdog1 {
+ /*
+ * Errata e10574:
+ * WDOG reset needs to run with WDOG_RESET_B signal enabled.
+ * X1-51 (WDOG1#) signal needs carrier board handling to reset
+ * TQMa7 on X1-22 (RESET_IN#).
+ */
+ fsl,ext-reset-output;
status = "okay";
};
--
2.20.1
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next reply other threads:[~2019-04-14 12:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-14 12:06 Bruno Thomsen [this message]
2019-04-14 15:32 ` [PATCH] ARM: dts: bugfix tqma7 soft reset issue Fabio Estevam
2019-04-14 16:10 ` Bruno Thomsen
2019-04-16 9:08 ` [PATCH v2] " Bruno Thomsen
2019-04-22 0:52 ` Shawn Guo
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