[PATCH v3 2/2] ARM: dts: imx6: Add support for Toradex Ixora carrier board

From: Marcel Ziswiler
Date: Fri Jan 15 2016 - 20:53:34 EST

From: Petr Åtetiar <ynezz@xxxxxxx>

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx>
Signed-off-by: Petr Åtetiar <ynezz@xxxxxxx>
Reviewed-by: Stefan Agner <stefan@xxxxxxxx>
---

Changes in v3:
- integrated review feedback from Petr
- integrated review feedback from Stefan
- fix comment concerning Apalis GPIO usage as GPIO7 is only used for PCIe switch reset on Apalis Evaluation board
- move I2C DDC handling into carrier board DTS where it belongs
- simplify RTC alias

Changes in v2:
- clarify exact Apalis iMX6Q/D SoM type in cover letter
- clarify exact Apalis iMX6Q/D module type and Ixora carrier board in model
node
- got rid of obsolete mmc aliases
- working SGTL5000 audio/sound integration
- working STMPE811 touch screen controller integration
- integrated review feedback from Lucas
- left and even added some more comments as I don't see why putting any
explanatory comments in dts' should be such a bad thing to do
- completely got rid of the memory node as that is something typically filled
in by the boot loader e.g. U-Boot
- without the regulators simple-bus it no longer boots
- even though we supposedly shipped a few hundred V1.0a modules drop DCE UART
support for now and simplify file layout
- replaced obsolete no-1-8-v by mainline supported voltage-ranges = <3300 3300>
usdhc property and yes card detects are indeed active low (;-p)
- integrated review feedback from Stefan
- fixed Ethernet PHY reset & interrupt (requires Micrel PHY driver to be
enabled)
- fixed HDMI DDC (requires GPIO-based bitbanging I2C to be enabled)
- fixed SPDIF

arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/imx6q-apalis-ixora.dts | 275 +++++++++++++++++++++++++++++++
2 files changed, 276 insertions(+)
create mode 100644 arch/arm/boot/dts/imx6q-apalis-ixora.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index a4a6d70..0d5e11b 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -317,6 +317,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
imx6dl-udoo.dtb \
imx6dl-wandboard.dtb \
imx6dl-wandboard-revb1.dtb \
+ imx6q-apalis-ixora.dtb \
imx6q-apf6dev.dtb \
imx6q-arm2.dtb \
imx6q-cm-fx6.dtb \
diff --git a/arch/arm/boot/dts/imx6q-apalis-ixora.dts b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
new file mode 100644
index 0000000..28f3b34
--- /dev/null
+++ b/arch/arm/boot/dts/imx6q-apalis-ixora.dts
@@ -0,0 +1,275 @@
+/*
+ * Copyright 2014-2016 Toradex AG
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2011 Linaro Ltd.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED , WITHOUT WARRANTY OF ANY KIND
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include "imx6q.dtsi"
+#include "imx6qdl-apalis.dtsi"
+
+/ {
+ model = "Toradex Apalis iMX6Q/D Module on Ixora Carrier Board";
+ compatible = "toradex,apalis_imx6q-ixora", "toradex,apalis_imx6q",
+ "fsl,imx6q";
+
+ aliases {
+ i2c0 = &i2cddc;
+ i2c1 = &i2c1;
+ i2c2 = &i2c2;
+ i2c3 = &i2c3;
+ };
+
+ aliases {
+ rtc0 = &rtc_i2c;
+ rtc1 = &snvs_rtc;
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio_keys>;
+
+ wakeup {
+ label = "Wake-Up";
+ gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_WAKEUP>;
+ debounce-interval = <10>;
+ gpio-key,wakeup;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_leds_ixora>;
+
+ led4-green {
+ label = "LED_4_GREEN";
+ gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>;
+ };
+
+ led4-red {
+ label = "LED_4_RED";
+ gpios = <&gpio1 21 GPIO_ACTIVE_HIGH>;
+ };
+
+ led5-green {
+ label = "LED_5_GREEN";
+ gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
+ };
+
+ led5-red {
+ label = "LED_5_RED";
+ gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+ pwmleds {
+ compatible = "pwm-leds";
+ ledpwm1 {
+ label = "PWM1";
+ pwms = <&pwm1 0 50000>;
+ max-brightness = <255>;
+ };
+
+ ledpwm2 {
+ label = "PWM2";
+ pwms = <&pwm2 0 50000>;
+ max-brightness = <255>;
+ };
+
+ ledpwm3 {
+ label = "PWM3";
+ pwms = <&pwm3 0 50000>;
+ max-brightness = <255>;
+ };
+ };
+
+ regulators {
+ reg_usb_otg_vbus: usb_otg_vbus {
+ status = "okay";
+ };
+
+ reg_usb_host_vbus: usb_host_vbus {
+ status = "okay";
+ };
+ };
+};
+
+&backlight {
+ brightness-levels = <0 127 191 223 239 247 251 255>;
+ default-brightness-level = <1>;
+ status = "okay";
+};
+
+&can1 {
+ status = "okay";
+};
+
+&can2 {
+ status = "okay";
+};
+
+&hdmi {
+ ddc-i2c-bus = <&i2cddc>;
+ status = "okay";
+};
+
+&i2cddc {
+ status = "okay";
+};
+
+/* GEN1_I2C: I2C1_SDA/SCL on MXM3 209/211 (e.g. RTC on carrier board) */
+&i2c1 {
+ status = "okay";
+
+ eeprom@50 {
+ compatible = "atmel,24c02";
+ reg = <0x50>;
+ };
+
+ /* M41T0M6 real time clock on carrier board */
+ rtc_i2c: rtc@68 {
+ compatible = "st,m41t00";
+ reg = <0x68>;
+ };
+};
+
+&ldb {
+ status = "okay";
+};
+
+&pcie {
+ /* active-low meaning opposite of regular PERST# active-low polarity */
+ reset-gpio = <&gpio1 28 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&pwm1 {
+ status = "okay";
+};
+
+&pwm2 {
+ status = "okay";
+};
+
+&pwm3 {
+ status = "okay";
+};
+
+&pwm4 {
+ status = "okay";
+};
+
+&sata {
+ status = "okay";
+};
+
+&sound_spdif {
+ status = "okay";
+};
+
+&spdif {
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&uart4 {
+ status = "okay";
+};
+
+&uart5 {
+ status = "okay";
+};
+
+&usbh1 {
+ vbus-supply = <&reg_usb_host_vbus>;
+ status = "okay";
+};
+
+&usbotg {
+ vbus-supply = <&reg_usb_otg_vbus>;
+ status = "okay";
+};
+
+/* SD1 */
+&usdhc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sd_cd>;
+ cd-gpios = <&gpio6 14 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&iomuxc {
+ /*
+ * Mux the Apalis GPIOs
+ * GPIO5, 6 used by optional fusion_F0710A kernel module
+ */
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_apalis_gpio1 &pinctrl_apalis_gpio2
+ &pinctrl_apalis_gpio3 &pinctrl_apalis_gpio4
+ &pinctrl_apalis_gpio5 &pinctrl_apalis_gpio6
+ &pinctrl_apalis_gpio7 &pinctrl_apalis_gpio8
+ >;
+
+ leds_ixora {
+ pinctrl_leds_ixora: leds-ixora {
+ fsl,pins = <
+ MX6QDL_PAD_SD1_DAT1__GPIO1_IO17 0x1b0b0
+ MX6QDL_PAD_SD1_DAT3__GPIO1_IO21 0x1b0b0
+ MX6QDL_PAD_NANDF_D1__GPIO2_IO01 0x1b0b0
+ MX6QDL_PAD_NANDF_D2__GPIO2_IO02 0x1b0b0
+ >;
+ };
+ };
+};
--
2.5.0