From: Akshay Bhat <akshay.bhat@timesys.com>
To: linux-watchdog@vger.kernel.org
Cc: robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com,
ijc+devicetree@hellion.org.uk, galak@codeaurora.org,
wim@iguana.be, tharvey@gateworks.com, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, shawnguo@kernel.org,
kernel@pengutronix.de, linux@arm.linux.org.uk,
linux-arm-kernel@lists.infradead.org, justin.waters@timesys.com,
l.stach@pengutronix.de, festevam@gmail.com, sr@denx.de,
Markus Pargmann <mpa@pengutronix.de>
Subject: [PATCH v4 2/2] ARM: dts: ventana: Add ext-reset support
Date: Thu, 5 Nov 2015 16:19:22 -0500 [thread overview]
Message-ID: <1446758362-11702-3-git-send-email-akshay.bhat@timesys.com> (raw)
In-Reply-To: <1446758362-11702-1-git-send-email-akshay.bhat@timesys.com>
From: Tim Harvey <tharvey@gateworks.com>
The Gateworks Ventana boards have a PMIC that can be used to regulate the
CPU voltage rails for DVFS support. In order to ensure this PMIC is properly
reset the watchdog needs to be configured to assert its external reset
signal.
Additionally the pad used for WDOG_B needs to be configured which we add to
iomux.
Cc: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
arch/arm/boot/dts/imx6qdl-gw51xx.dtsi | 12 ++++++++++++
arch/arm/boot/dts/imx6qdl-gw52xx.dtsi | 12 ++++++++++++
arch/arm/boot/dts/imx6qdl-gw53xx.dtsi | 13 +++++++++++++
arch/arm/boot/dts/imx6qdl-gw54xx.dtsi | 17 +++++++++++++++++
arch/arm/boot/dts/imx6qdl-gw551x.dtsi | 12 ++++++++++++
arch/arm/boot/dts/imx6qdl-gw552x.dtsi | 12 ++++++++++++
6 files changed, 78 insertions(+)
diff --git a/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
index 7b31fdb..d81bd72 100644
--- a/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi
@@ -210,6 +210,12 @@
status = "okay";
};
+&wdog1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_wdog>;
+ ext-reset-output;
+};
+
&iomuxc {
imx6qdl-gw51xx {
pinctrl_enet: enetgrp {
@@ -328,5 +334,11 @@
MX6QDL_PAD_EIM_D22__GPIO3_IO22 0x1b0b0 /* OTG_PWR_EN */
>;
};
+
+ pinctrl_wdog: wdoggrp {
+ fsl,pins = <
+ MX6QDL_PAD_DISP0_DAT8__WDOG1_B 0x1b0b0
+ >;
+ };
};
};
diff --git a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
index 1b66328..0d8f201 100644
--- a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
@@ -326,6 +326,12 @@
status = "okay";
};
+&wdog1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_wdog>;
+ ext-reset-output;
+};
+
&iomuxc {
imx6qdl-gw52xx {
pinctrl_audmux: audmuxgrp {
@@ -501,5 +507,11 @@
MX6QDL_PAD_NANDF_CS1__SD3_VSELECT 0x170f9
>;
};
+
+ pinctrl_wdog: wdoggrp {
+ fsl,pins = <
+ MX6QDL_PAD_DISP0_DAT8__WDOG1_B 0x1b0b0
+ >;
+ };
};
};
diff --git a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
index 7c51839..36f9ec6 100644
--- a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
@@ -332,7 +332,14 @@
status = "okay";
};
+&wdog1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_wdog>;
+ ext-reset-output;
+};
+
&iomuxc {
+
imx6qdl-gw53xx {
pinctrl_audmux: audmuxgrp {
fsl,pins = <
@@ -508,5 +515,11 @@
MX6QDL_PAD_NANDF_CS1__SD3_VSELECT 0x170f9
>;
};
+
+ pinctrl_wdog: wdoggrp {
+ fsl,pins = <
+ MX6QDL_PAD_DISP0_DAT8__WDOG1_B 0x1b0b0
+ >;
+ };
};
};
diff --git a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
index 929e0b3..0c1150f 100644
--- a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
@@ -425,6 +425,17 @@
status = "okay";
};
+&wdog1 {
+ status = "disabled";
+};
+
+&wdog2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_wdog>;
+ ext-reset-output;
+ status = "okay";
+};
+
&iomuxc {
imx6qdl-gw54xx {
pinctrl_audmux: audmuxgrp {
@@ -600,5 +611,11 @@
MX6QDL_PAD_NANDF_CS1__SD3_VSELECT 0x170f9
>;
};
+
+ pinctrl_wdog: wdoggrp {
+ fsl,pins = <
+ MX6QDL_PAD_SD1_DAT3__WDOG2_B 0x1b0b0
+ >;
+ };
};
};
diff --git a/arch/arm/boot/dts/imx6qdl-gw551x.dtsi b/arch/arm/boot/dts/imx6qdl-gw551x.dtsi
index 741f3d5..883e577 100644
--- a/arch/arm/boot/dts/imx6qdl-gw551x.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw551x.dtsi
@@ -227,6 +227,12 @@
status = "okay";
};
+&wdog1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_wdog>;
+ ext-reset-output;
+};
+
&iomuxc {
imx6qdl-gw51xx {
pinctrl_flexcan1: flexcan1grp {
@@ -309,5 +315,11 @@
MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x17059
>;
};
+
+ pinctrl_wdog: wdoggrp {
+ fsl,pins = <
+ MX6QDL_PAD_DISP0_DAT8__WDOG1_B 0x1b0b0
+ >;
+ };
};
};
diff --git a/arch/arm/boot/dts/imx6qdl-gw552x.dtsi b/arch/arm/boot/dts/imx6qdl-gw552x.dtsi
index d1e5048..07674c2 100644
--- a/arch/arm/boot/dts/imx6qdl-gw552x.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw552x.dtsi
@@ -185,6 +185,12 @@
status = "okay";
};
+&wdog1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_wdog>;
+ ext-reset-output;
+};
+
&iomuxc {
imx6qdl-gw552x {
pinctrl_gpio_leds: gpioledsgrp {
@@ -262,5 +268,11 @@
MX6QDL_PAD_KEY_ROW1__UART5_RX_DATA 0x1b0b1
>;
};
+
+ pinctrl_wdog: wdoggrp {
+ fsl,pins = <
+ MX6QDL_PAD_DISP0_DAT8__WDOG1_B 0x1b0b0
+ >;
+ };
};
};
--
2.6.2
prev parent reply other threads:[~2015-11-05 21:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-05 21:19 [PATCH v4 0/2] imx6: Implement external watchdog reset Akshay Bhat
2015-11-05 21:19 ` [PATCH v4 1/2] watchdog: imx2_wdt: add external reset support via 'ext-reset-output' dt prop Akshay Bhat
2015-11-05 22:23 ` Guenter Roeck
2015-11-06 19:53 ` Tim Harvey
2015-11-06 22:02 ` Guenter Roeck
2015-12-02 19:11 ` Akshay Bhat
2015-12-02 20:54 ` Tim Harvey
2015-12-17 15:02 ` Tim Harvey
2015-12-17 15:32 ` Guenter Roeck
2015-12-28 16:29 ` Wim Van Sebroeck
2016-01-28 20:28 ` Akshay Bhat
2016-02-28 13:56 ` Fabio Estevam
2016-03-28 20:19 ` Akshay Bhat
2016-03-30 1:22 ` Shawn Guo
2016-03-30 21:09 ` Guenter Roeck
2016-03-31 1:57 ` Shawn Guo
2016-03-31 18:01 ` Tim Harvey
2016-04-01 1:39 ` Shawn Guo
2015-11-05 21:19 ` Akshay Bhat [this message]
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