ARM: dts: sun6i: Add a dts for the Pangolin module

Pangolin is a A31 based uQseven module with up to 2GB DDR3, eMMC,
SPI NOR Flash, HDMI, LVDS, 7 USB Host ports, USB to SATA bridge,
Gigabit Ethernet and an Offload STM32 Cortex-M0 processor
providing CAN, RTC and fan controller functionality.

For more details see: http://theobroma-systems.com/a31-uq7/

Signed-off-by: Klaus Goger <klaus.goger@theobroma-systems.com>

2 files changed, 418 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 95c1923ce6fa..f836e209ff60 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -675,6 +675,7 @@ dtb-$(CONFIG_MACH_SUN6I) += \
 	sun6i-a31-i7.dtb \
 	sun6i-a31-m9.dtb \
 	sun6i-a31-mele-a1000g-quad.dtb \
+	sun6i-a31-pangolin.dtb \
 	sun6i-a31s-cs908.dtb \
 	sun6i-a31s-primo81.dtb \
 	sun6i-a31s-sina31s.dtb \
diff --git a/arch/arm/boot/dts/sun6i-a31-pangolin.dts b/arch/arm/boot/dts/sun6i-a31-pangolin.dts
new file mode 100644
index 000000000000..01cfc848255d
--- /dev/null
+++ b/arch/arm/boot/dts/sun6i-a31-pangolin.dts
@@ -0,0 +1,417 @@
+/*
+ * Copyright 2014 Maxime Ripard
+ * Copyright 2016 Klaus Goger
+ *
+ * Maxime Ripard <maxime.ripard@free-electrons.com>
+ * Klaus Goger <klaus.goger@theobroma-systems.com>
+ *
+ * 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 as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     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.
+ *
+ *     You should have received a copy of the GNU General Public
+ *     License along with this file; if not, write to the Free
+ *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ *     MA 02110-1301 USA
+ *
+ * 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 "AS IS", 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 "sun6i-a31.dtsi"
+#include "sunxi-common-regulators.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/sun4i-a10.h>
+
+/ {
+	model = "Theobroma Systems A31 Pangolin";
+	compatible = "tsd,a31-pangolin", "allwinner,sun6i-a31";
+
+	chosen {
+		/* Enable kernel output on HDMI (tty0) and RS232 (ttyS2), rootfs on SD card */
+		bootargs = "console=tty0 console=ttyS2,115200 root=/dev/mmcblk1p1 rw rootwait";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&leds_pins_pangolin>;
+
+		module_led {
+			label = "module_led";
+			gpios = <&pio 7 7 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+		sd_card_led {
+			label = "sd_card_led";
+			gpios = <&pio 2 16 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "mmc1";
+		};
+	};
+
+	/* Redefines mmc0 under new name so that the sd card is probed after the emmc */
+	soc@01c00000 {
+		sdcard: sdcard@01c0f000 {
+			compatible = "allwinner,sun5i-a13-mmc";
+			reg = <0x01c0f000 0x1000>;
+			clocks = <&ahb1_gates 8>,
+			         <&mmc0_clk 0>,
+			         <&mmc0_clk 1>,
+			         <&mmc0_clk 2>;
+			clock-names = "ahb",
+			              "mmc",
+			              "output",
+			              "sample";
+			resets = <&ahb1_rst 8>;
+			reset-names = "ahb";
+			interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_pangolin>;
+			vmmc-supply = <&reg_dcdc1>;
+			bus-width = <4>;
+			cd-gpios = <&pio 2 19 GPIO_ACTIVE_LOW>; /* PC19 */
+			status = "okay";
+		};
+	};
+
+	thermal-zones {
+		cpu_thermal {
+			cooling-maps {
+				map_fan {
+					trip = <&cpu_active>;
+					cooling-device = <&fan 0 9>;
+				};
+				map0 {
+					trip = <&cpu_alert0>;
+					cooling-device = <&cpu0 0 1>;
+				};
+				map1 {
+					trip = <&cpu_alert1>;
+					cooling-device = <&cpu0 0 2>;
+				};
+				map2 {
+					trip = <&cpu_alert2>;
+					cooling-device = <&cpu0 0 3>;
+				};
+			};
+
+			trips {
+				cpu_active: cpu_active {
+					temperature = <40000>;
+					hysteresis = <2000>;
+					type = "active";
+				};
+				cpu_alert0: cpu_alert0 {
+					temperature = <70000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+				cpu_alert1: cpu_alert1 {
+					temperature = <80000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+				cpu_alert2: cpu_alert2 {
+					temperature = <90000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+				cpu_crit: cpu_crit {
+					temperature = <100000>;
+					hysteresis = <2000>;
+					type = "critical";
+				};
+			};
+		};
+	};
+
+	reg_usbotg_vbus: usbotg-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "otg-vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		status = "okay";
+	};
+};
+
+&rtc {
+	status = "disabled";
+};
+
+&ehci0 {
+	status = "okay";
+};
+
+&ehci1 {
+	status = "okay";
+};
+
+&ohci1 {
+	status = "okay";
+};
+
+&ohci2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ohci2_pins_a>;
+	status = "okay";
+};
+
+&usb_otg {
+	dr_mode = "otg";
+	status = "okay";
+};
+
+&gmac {
+	pinctrl-names = "default";
+	pinctrl-0 = <&gmac_pins_rgmii_a>;
+	phy-mode = "rgmii";
+	snps,reset-gpio = <&pio 0 7 GPIO_ACTIVE_LOW>;
+	snps,reset-active-low;
+	snps,reset-delays-us = <0 50000 1000000>;
+	txc-skew-ps = <1800>;
+	rxc-skew-ps = <1800>;
+	status = "okay";
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins_a>;
+	status = "okay";
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins_a>;
+	status = "okay";
+};
+
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pins_a>;
+	status = "okay";
+};
+
+&i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c3_pins_a>;
+	status = "okay";
+
+	rtc_twi: rtc@6f {
+	 compatible = "isil,isl1208";
+	 reg = <0x6f>;
+	};
+	fan: fan@18 {
+		compatible = "ti,amc6821";
+		reg = <0x18>;
+		cooling-min-state = <0>;
+		cooling-max-state = <9>;
+		#cooling-cells = <2>;
+	};
+};
+
+&spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_pins_a>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+	flash: mx25l@0 {
+		compatible = "macronix,mx25l4005a";
+		reg = <0>;
+		spi-max-frequency = <16000000>;
+ };
+};
+
+&spi1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi1_pins_a>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+	spidev@0x00 {
+					compatible = "spidev";
+					spi-max-frequency = <6000000>;
+					reg = <0>;
+	};
+	spidev@0x01 {
+					compatible = "spidev";
+					spi-max-frequency = <6000000>;
+					reg = <1>;
+	};
+
+};
+
+&mmc0_pins_a {
+	/* external pull-ups missing for some pins */
+	allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+};
+
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_8bit_emmc_pins>;
+	vmmc-supply = <&reg_dcdc1>;
+	bus-width = <4>;
+	non-removable;
+	status = "okay";
+};
+
+&pio {
+	mmc0_cd_pin_pangolin: mmc0_cd_pin@0 {
+		allwinner,pins = "PC19";
+		allwinner,function = "gpio_in";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+	};
+	leds_pins_pangolin: led_pins@0 {
+		allwinner,pins = "PH7", "PC16";
+		allwinner,function = "gpio_out";
+		allwinner,drive = <SUN4I_PINCTRL_20_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+	};
+	usb0_id_detect_pin: usb0_id_detect_pin@0 {
+		allwinner,pins = "PH2";
+		allwinner,function = "gpio_in";
+		allwinner,drive = <SUN4I_PINCTRL_20_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+	};
+	usb0_vbus_detect_pin: usb0_vbus_detect_pin@0 {
+		allwinner,pins = "PD23";
+		allwinner,function = "gpio_in";
+		allwinner,drive = <SUN4I_PINCTRL_20_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+	};
+	usb0_vbus_enable: usb0_vbus_enable@0 {
+		allwinner,pins = "PD24";
+		allwinner,function = "gpio_out";
+		allwinner,drive = <SUN4I_PINCTRL_20_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+	};
+	gmac_pins_rgmii_a: gmac_rgmii@0 {
+		allwinner,drive = <SUN4I_PINCTRL_20_MA>;
+	};
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins_a>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins_a>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_pins_a>;
+	status = "okay";
+};
+
+&usbphy {
+	pinctrl-names = "default";
+	pinctrl-0 = <&usb0_id_detect_pin>,<&usb0_vbus_detect_pin>;
+	usb0_vbus-supply = <&reg_usbotg_vbus>;
+	usb0_id_det-gpio = <&pio 7 2 GPIO_ACTIVE_HIGH>; /* PH2 */
+	usb0_vbus_det-gpio = <&pio 3 23 GPIO_ACTIVE_HIGH>; /* PD23 */
+	status = "okay";
+};
+
+&p2wi {
+	status = "okay";
+	axp22x: pmic@68 {
+		compatible = "x-powers,axp221";
+		reg = <0x68>;
+		interrupt-parent = <&nmi_intc>;
+		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+	};
+};
+
+
+#include "axp22x.dtsi"
+
+&reg_dc5ldo {
+	regulator-min-microvolt = <1100000>;
+	regulator-max-microvolt = <1100000>;
+	regulator-name = "vdd-cpus";
+};
+
+&reg_dcdc1 {
+	regulator-always-on;
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-3v0";
+};
+
+&reg_dcdc2 {
+	regulator-min-microvolt = <1200000>;
+	regulator-max-microvolt = <1220000>;
+	regulator-name = "vdd-gpu";
+};
+
+&reg_dcdc3 {
+	regulator-always-on;
+	regulator-min-microvolt = <600000>;
+	regulator-max-microvolt = <1360000>;
+	regulator-name = "vdd-cpu";
+};
+
+&reg_dcdc4 {
+	regulator-always-on;
+	regulator-min-microvolt = <1240000>;
+	regulator-max-microvolt = <1240000>;
+	regulator-name = "vdd-sys-dll";
+};
+
+&reg_dcdc5 {
+	regulator-always-on;
+	regulator-min-microvolt = <1500000>;
+	regulator-max-microvolt = <1500000>;
+	regulator-name = "vcc-dram";
+};
+
+&reg_aldo3 {
+	regulator-always-on;
+	regulator-min-microvolt = <3000000>;
+	regulator-max-microvolt = <3000000>;
+	regulator-name = "vdd-rtc";
+};
+
+&rtp {
+	status = "okay";
+};