forked from Minki/linux
51a012b762
bc677ff42e adds a device-tree property
to specify that an external watchdog reset is used to reset other
portions of the board and not just the IMX6 SoC.
This adds the property to the proper watchdog as well as the pinmux for
the Gateworks Ventana boards that use this external watchdog reset to
reset the PMIC which will reset all the PMIC power rails and not just
a chip-level IMX6 reset. This helps to work around various system issues
that can cause a hang when coming out of reset.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
350 lines
7.7 KiB
Plaintext
350 lines
7.7 KiB
Plaintext
/*
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* Copyright 2014 Gateworks Corporation
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*
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* This file is dual-licensed: you can use it either under the terms
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* of the GPL or the X11 license, at your option. Note that this dual
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* licensing only applies to this file, and not this project as a
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* whole.
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*
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* a) This file is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this file; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*
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* Or, alternatively,
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*
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* b) Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <dt-bindings/gpio/gpio.h>
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/ {
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/* these are used by bootloader for disabling nodes */
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aliases {
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led0 = &led0;
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nand = &gpmi;
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ssi0 = &ssi1;
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usb0 = &usbh1;
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usb1 = &usbotg;
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};
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chosen {
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bootargs = "console=ttymxc1,115200";
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};
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leds {
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compatible = "gpio-leds";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_gpio_leds>;
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led0: user1 {
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label = "user1";
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gpios = <&gpio4 7 GPIO_ACTIVE_LOW>;
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default-state = "on";
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linux,default-trigger = "heartbeat";
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};
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};
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memory {
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reg = <0x10000000 0x20000000>;
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};
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regulators {
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compatible = "simple-bus";
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#address-cells = <1>;
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#size-cells = <0>;
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reg_5p0v: regulator@0 {
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compatible = "regulator-fixed";
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reg = <0>;
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regulator-name = "5P0V";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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};
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reg_usb_h1_vbus: regulator@1 {
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compatible = "regulator-fixed";
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reg = <1>;
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regulator-name = "usb_h1_vbus";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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};
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reg_usb_otg_vbus: regulator@2 {
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compatible = "regulator-fixed";
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reg = <2>;
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regulator-name = "usb_otg_vbus";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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};
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};
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};
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&can1 {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_flexcan1>;
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status = "okay";
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};
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&gpmi {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_gpmi_nand>;
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status = "okay";
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};
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&hdmi {
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ddc-i2c-bus = <&i2c3>;
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status = "okay";
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};
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&i2c1 {
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clock-frequency = <100000>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_i2c1>;
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status = "okay";
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eeprom1: eeprom@50 {
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compatible = "atmel,24c02";
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reg = <0x50>;
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pagesize = <16>;
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};
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eeprom2: eeprom@51 {
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compatible = "atmel,24c02";
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reg = <0x51>;
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pagesize = <16>;
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};
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eeprom3: eeprom@52 {
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compatible = "atmel,24c02";
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reg = <0x52>;
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pagesize = <16>;
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};
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eeprom4: eeprom@53 {
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compatible = "atmel,24c02";
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reg = <0x53>;
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pagesize = <16>;
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};
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gpio: pca9555@23 {
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compatible = "nxp,pca9555";
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reg = <0x23>;
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gpio-controller;
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#gpio-cells = <2>;
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};
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rtc: ds1672@68 {
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compatible = "dallas,ds1672";
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reg = <0x68>;
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};
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};
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&i2c2 {
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clock-frequency = <100000>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_i2c2>;
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status = "okay";
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};
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&i2c3 {
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clock-frequency = <100000>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_i2c3>;
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status = "okay";
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gpio_exp: pca9555@24 {
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compatible = "nxp,pca9555";
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reg = <0x24>;
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gpio-controller;
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#gpio-cells = <2>;
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};
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};
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&pcie {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_pcie>;
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reset-gpio = <&gpio1 0 GPIO_ACTIVE_LOW>;
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status = "okay";
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};
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&pwm2 {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_pwm2>; /* MX6_DIO1 */
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status = "disabled";
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};
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&pwm3 {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_pwm3>; /* MX6_DIO2 */
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status = "disabled";
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};
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&ssi1 {
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status = "okay";
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};
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&uart2 {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_uart2>;
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status = "okay";
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};
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&uart3 {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_uart3>;
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status = "okay";
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};
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&usbotg {
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vbus-supply = <®_usb_otg_vbus>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_usbotg>;
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disable-over-current;
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status = "okay";
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};
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&usbh1 {
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vbus-supply = <®_usb_h1_vbus>;
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status = "okay";
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};
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&wdog1 {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_wdog>;
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fsl,ext-reset-output;
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};
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&iomuxc {
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imx6qdl-gw51xx {
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pinctrl_flexcan1: flexcan1grp {
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fsl,pins = <
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MX6QDL_PAD_KEY_ROW2__FLEXCAN1_RX 0x1b0b1
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MX6QDL_PAD_KEY_COL2__FLEXCAN1_TX 0x1b0b1
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MX6QDL_PAD_GPIO_9__GPIO1_IO09 0x4001b0b0 /* CAN_STBY */
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>;
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};
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pinctrl_gpio_leds: gpioledsgrp {
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fsl,pins = <
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MX6QDL_PAD_KEY_ROW0__GPIO4_IO07 0x1b0b0
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>;
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};
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pinctrl_gpmi_nand: gpminandgrp {
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fsl,pins = <
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MX6QDL_PAD_NANDF_CLE__NAND_CLE 0xb0b1
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MX6QDL_PAD_NANDF_ALE__NAND_ALE 0xb0b1
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MX6QDL_PAD_NANDF_WP_B__NAND_WP_B 0xb0b1
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MX6QDL_PAD_NANDF_RB0__NAND_READY_B 0xb000
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MX6QDL_PAD_NANDF_CS0__NAND_CE0_B 0xb0b1
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MX6QDL_PAD_SD4_CMD__NAND_RE_B 0xb0b1
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MX6QDL_PAD_SD4_CLK__NAND_WE_B 0xb0b1
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MX6QDL_PAD_NANDF_D0__NAND_DATA00 0xb0b1
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MX6QDL_PAD_NANDF_D1__NAND_DATA01 0xb0b1
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MX6QDL_PAD_NANDF_D2__NAND_DATA02 0xb0b1
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MX6QDL_PAD_NANDF_D3__NAND_DATA03 0xb0b1
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MX6QDL_PAD_NANDF_D4__NAND_DATA04 0xb0b1
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MX6QDL_PAD_NANDF_D5__NAND_DATA05 0xb0b1
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MX6QDL_PAD_NANDF_D6__NAND_DATA06 0xb0b1
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MX6QDL_PAD_NANDF_D7__NAND_DATA07 0xb0b1
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>;
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};
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pinctrl_i2c1: i2c1grp {
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fsl,pins = <
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MX6QDL_PAD_EIM_D21__I2C1_SCL 0x4001b8b1
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MX6QDL_PAD_EIM_D28__I2C1_SDA 0x4001b8b1
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>;
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};
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pinctrl_i2c2: i2c2grp {
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fsl,pins = <
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MX6QDL_PAD_KEY_COL3__I2C2_SCL 0x4001b8b1
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MX6QDL_PAD_KEY_ROW3__I2C2_SDA 0x4001b8b1
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>;
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};
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pinctrl_i2c3: i2c3grp {
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fsl,pins = <
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MX6QDL_PAD_GPIO_3__I2C3_SCL 0x4001b8b1
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MX6QDL_PAD_GPIO_6__I2C3_SDA 0x4001b8b1
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>;
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};
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pinctrl_pcie: pciegrp {
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fsl,pins = <
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MX6QDL_PAD_GPIO_0__GPIO1_IO00 0x1b0b0 /* PCIE RST */
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>;
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};
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pinctrl_pwm2: pwm2grp {
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fsl,pins = <
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MX6QDL_PAD_SD1_DAT2__PWM2_OUT 0x1b0b1
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>;
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};
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pinctrl_pwm3: pwm3grp {
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fsl,pins = <
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MX6QDL_PAD_SD1_DAT1__PWM3_OUT 0x1b0b1
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>;
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};
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pinctrl_uart2: uart2grp {
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fsl,pins = <
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MX6QDL_PAD_SD4_DAT7__UART2_TX_DATA 0x1b0b1
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MX6QDL_PAD_SD4_DAT4__UART2_RX_DATA 0x1b0b1
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>;
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};
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pinctrl_uart3: uart3grp {
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fsl,pins = <
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MX6QDL_PAD_EIM_D24__UART3_TX_DATA 0x1b0b1
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MX6QDL_PAD_EIM_D25__UART3_RX_DATA 0x1b0b1
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>;
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};
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pinctrl_usbotg: usbotggrp {
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fsl,pins = <
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MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x17059
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>;
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};
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pinctrl_wdog: wdoggrp {
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fsl,pins = <
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MX6QDL_PAD_DISP0_DAT8__WDOG1_B 0x1b0b0
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>;
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};
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};
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};
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