linux-kernel - [PATCH v2] ARM: sun8i: Add Parrot Board DTS

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Message-Id: <1466602902-4022-1-git-send-email-quentin.schulz@free-electrons.com>
Date:	Wed, 22 Jun 2016 15:41:42 +0200
From:	Quentin Schulz <quentin.schulz@...e-electrons.com>
To:	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	linux@...linux.org.uk, maxime.ripard@...e-electrons.com,
	wens@...e.org
Cc:	Quentin Schulz <quentin.schulz@...e-electrons.com>,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, thomas.petazzoni@...e-electrons.com
Subject: [PATCH v2] ARM: sun8i: Add Parrot Board DTS

The Parrot Board is an evaluation board with an Allwinner R16 (assumed
to be close to an Allwinner A33), 4GB of eMMC, 512MB of RAM, USB host
and OTG, a WiFi/Bluetooth combo chip, a micro SD Card reader, 2
controllable buttons, an LVDS port with separated backlight and
capacitive touch panel ports, an audio/microphone jack, a camera CSI
port, 2 sets of 22 GPIOs and an accelerometer.

Signed-off-by: Quentin Schulz <quentin.schulz@...e-electrons.com>
---

Patch dependencies:
 - regulator: axp20x: Add support for the (external) drivebus regulator
 - ARM: dts: axp22x.dtsi: Add reg_drivebus node
 - ARM: dts: axp22x.dtsi: Add usb_power_supply node
 - power: axp20x_usb: Add support for usb power-supply on axp22x pmics
 - mfd: axp20x: Extend axp22x_volatile_ranges
 - mfd: axp20x: Add axp20x-usb-power-supply for axp22x pmics
 - phy-sun4i-usb: Add workaround for missing Vbus det interrupts on A31
or the micro USB port would not be powered.

v2:
 - correct typos,
 - chose less generic name suffix for nodes (now_parrot_r16),
 - add comment for i2c childless node,
 - add comment for two regulators-powered WiFi chip,
 - add comment to explicit the use of some regulators,
 - add usb_vbus_power-supply property in usbphy node (this adds a
   dependance to an other patch),

 arch/arm/boot/dts/Makefile             |   1 +
 arch/arm/boot/dts/sun8i-r16-parrot.dts | 356 +++++++++++++++++++++++++++++++++
 2 files changed, 357 insertions(+)
 create mode 100644 arch/arm/boot/dts/sun8i-r16-parrot.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 1ff5434..6c7581f 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -762,6 +762,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
 	sun8i-a33-ippo-q8h-v1.2.dtb \
 	sun8i-a33-q8-tablet.dtb \
 	sun8i-a33-sinlinx-sina33.dtb \
+	sun8i-r16-parrot.dtb \
 	sun8i-a83t-allwinner-h8homlet-v2.dtb \
 	sun8i-a83t-cubietruck-plus.dtb \
 	sun8i-h3-orangepi-2.dtb \
diff --git a/arch/arm/boot/dts/sun8i-r16-parrot.dts b/arch/arm/boot/dts/sun8i-r16-parrot.dts
new file mode 100644
index 0000000..cd68bfa
--- /dev/null
+++ b/arch/arm/boot/dts/sun8i-r16-parrot.dts
@@ -0,0 +1,356 @@
+/*
+ * Copyright 2016 Quentin Schulz
+ *
+ * Quentin Schulz <quentin.schulz@...e-electrons.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.
+ *
+ * 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 "sun8i-a33.dtsi"
+#include "sunxi-common-regulators.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "Allwinner Parrot EVB R16";
+	compatible = "allwinner,parrot-evb-r16", "allwinner,sun8i-a33";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&led_pins_parrot_r16>;
+
+		led1 {
+			label = "parrot_r16:led1:usr";
+			gpio = <&pio 4 17 GPIO_ACTIVE_HIGH>; /* PE17 */
+		};
+
+		led2 {
+			label = "parrot_r16:led2:usr";
+			gpio = <&pio 4 16 GPIO_ACTIVE_HIGH>; /* PE16 */
+		};
+	};
+
+	wifi_pwrseq: wifi_pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		reset-gpios = <&r_pio 0 6 GPIO_ACTIVE_LOW>; /* PL06 */
+	};
+
+};
+
+&ehci0 {
+	status = "okay";
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins_a>;
+	status = "okay";
+
+	/* An as-yet-unknown accelerometer is connected to this i2c bus. */
+};
+
+&lradc {
+	vref-supply = <&reg_aldo3>;
+	status = "okay";
+
+	button@0 {
+		label = "V+";
+		linux,code = <KEY_VOLUMEUP>;
+		channel = <0>;
+		voltage = <190000>;
+	};
+
+	button@1 {
+		label = "V-";
+		linux,code = <KEY_VOLUMEDOWN>;
+		channel = <0>;
+		voltage = <390000>;
+	};
+
+};
+
+&mmc0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_parrot_r16>;
+	vmmc-supply = <&reg_dcdc1>;
+	cd-gpios = <&pio 3 14 GPIO_ACTIVE_LOW>; /* PD14 */
+	bus-width = <4>;
+	status = "okay";
+};
+
+/*
+ * TODO: WiFi chip needs dldo1 AND dldo2 as vmmc-supply.
+ * aldo1 is connected to VCC-IO-WIFI and thus should be vqmmc.
+ * Once two regulators can be in sync for vmmc-supply, modify this node
+ * accordingly.
+ */
+&mmc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins_a>, <&wifi_reset_pin_parrot_r16>;
+	vmmc-supply = <&reg_aldo1>;
+	mmc-pwrseq = <&wifi_pwrseq>;
+	bus-width = <4>;
+	non-removable;
+	status = "okay";
+};
+
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_8bit_pins>;
+	vmmc-supply = <&reg_dcdc1>;
+	bus-width = <8>;
+	non-removable;
+	cap-mmc-hw-reset;
+	status = "okay";
+};
+
+&mmc2_8bit_pins {
+	allwinner,drive = <SUN4I_PINCTRL_40_MA>;
+	allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+};
+
+&ohci0 {
+	status = "okay";
+};
+
+&pio {
+	mmc0_cd_pin_parrot_r16: mmc0_cd_pin@0 {
+		allwinner,pins = "PD14";
+		allwinner,function = "gpio_in";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+	};
+
+	led_pins_parrot_r16: led_pins@0 {
+		allwinner,pins = "PE16", "PE17";
+		allwinner,function = "gpio_out";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+	};
+
+	usb0_id_det: usb0_id_detect_pin@0 {
+		allwinner,pins = "PD10";
+		allwinner,function = "gpio_in";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+	};
+
+	usb1_vbus_pin_parrot_r16: usb1_vbus_pin@0 {
+		allwinner,pins = "PD12";
+		allwinner,function = "gpio_out";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+	};
+};
+
+&r_pio {
+	wifi_reset_pin_parrot_r16: wifi_reset_pin@0 {
+		allwinner,pins = "PL6";
+		allwinner,function = "gpio_out";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+	};
+};
+
+&r_rsb {
+	status = "okay";
+
+	axp22x: pmic@3a3 {
+		compatible = "x-powers,axp223";
+		reg = <0x3a3>;
+		interrupt-parent = <&nmi_intc>;
+		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+		drivevbus-supply = <&reg_vcc5v0>;
+		x-powers,drive-vbus-en;
+	};
+};
+
+#include "axp22x.dtsi"
+
+/* Used for VCC-IO, VCC-PD, VCC-USB, HPVCC, VCC-IO-BB and VCC-IO-WIFI */
+&reg_aldo1 {
+	regulator-always-on;
+	regulator-min-microvolt = <3000000>;
+	regulator-max-microvolt = <3000000>;
+	regulator-name = "aldo1";
+};
+
+&reg_aldo2 {
+	regulator-always-on;
+	regulator-min-microvolt = <2350000>;
+	regulator-max-microvolt = <2650000>;
+	regulator-name = "vdd-dll";
+};
+
+&reg_aldo3 {
+	regulator-always-on;
+	regulator-min-microvolt = <2700000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-pll-avcc";
+};
+
+&reg_dc5ldo {
+	regulator-always-on;
+	regulator-min-microvolt = <900000>;
+	regulator-max-microvolt = <1400000>;
+	regulator-name = "vdd-cpus";
+};
+
+&reg_dcdc1 {
+	regulator-always-on;
+	regulator-min-microvolt = <3000000>;
+	regulator-max-microvolt = <3000000>;
+	regulator-name = "vcc-3v0";
+};
+
+&reg_dcdc2 {
+	regulator-always-on;
+	regulator-min-microvolt = <900000>;
+	regulator-max-microvolt = <1400000>;
+	regulator-name = "vdd-sys";
+};
+
+&reg_dcdc3 {
+	regulator-always-on;
+	regulator-min-microvolt = <900000>;
+	regulator-max-microvolt = <1400000>;
+	regulator-name = "vdd-cpu";
+};
+
+&reg_dcdc5 {
+	regulator-always-on;
+	regulator-min-microvolt = <1500000>;
+	regulator-max-microvolt = <1500000>;
+	regulator-name = "vcc-dram";
+};
+
+&reg_dldo1 {
+	/*
+	 * TODO: WiFi chip needs dldo1 AND dldo2 to be on to be powered.
+	 * Remove next line once it is possible to sync two regulators.
+	 */
+	regulator-always-on;
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-wifi";
+};
+
+&reg_dldo2 {
+	/*
+	 * TODO: WiFi chip needs dldo1 AND dldo2 to be on to be powered.
+	 * Remove next line once it is possible to sync two regulators.
+	 */
+	regulator-always-on;
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-wifi1";
+};
+
+&reg_dldo3 {
+	regulator-min-microvolt = <3000000>;
+	regulator-max-microvolt = <3000000>;
+	regulator-name = "vcc-3v0-csi";
+};
+
+&reg_drivevbus {
+	regulator-name = "usb0-vbus";
+	status = "okay";
+};
+
+&reg_eldo1 {
+	regulator-min-microvolt = <1200000>;
+	regulator-max-microvolt = <1200000>;
+	regulator-name = "vcc-1v2-hsic";
+};
+
+&reg_eldo2 {
+	regulator-min-microvolt = <3000000>;
+	regulator-max-microvolt = <3000000>;
+	regulator-name = "dsp-vcc";
+};
+
+/* Mapped to GPIO 22 in U21 GPIOs set */
+&reg_eldo3 {
+	regulator-min-microvolt = <3000000>;
+	regulator-max-microvolt = <3000000>;
+	regulator-name = "eldo3";
+};
+
+&reg_usb1_vbus {
+	pinctrl-names = "default";
+	pinctrl-0 = <&usb1_vbus_pin_parrot_r16>;
+	gpio = <&pio 3 12 GPIO_ACTIVE_HIGH>; /* PD12 */
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins_b>;
+	status = "okay";
+};
+
+&usb_otg {
+	dr_mode = "otg";
+	status = "okay";
+};
+
+&usb_power_supply {
+	status = "okay";
+};
+
+&usbphy {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&usb0_id_det>;
+	usb0_vbus-supply = <&reg_drivevbus>;
+	usb0_id_det-gpios = <&pio 3 10 GPIO_ACTIVE_HIGH>; /* PD10 */
+	usb0_vbus_power-supply = <&usb_power_supply>;
+	usb1_vbus-supply = <&reg_usb1_vbus>; /* USB1 VBUS is always on */
+};
-- 
2.5.0