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Diffstat (limited to 'arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi b/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi new file mode 100644 index 000000000..5e8a95af8 --- /dev/null +++ b/arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi @@ -0,0 +1,248 @@ +/* + * Copyright 2015 Hans de Goede <hdegoede@redhat.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. + */ +#include "sunxi-reference-design-tablet.dtsi" + +#include <dt-bindings/pwm/pwm.h> + +/ { + aliases { + serial0 = &r_uart; + }; + + backlight: backlight { + compatible = "pwm-backlight"; + pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>; + brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>; + default-brightness-level = <8>; + enable-gpios = <&pio 7 6 GPIO_ACTIVE_HIGH>; /* PH6 */ + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; +}; + +&i2c0 { + /* + * The gsl1680 is rated at 400KHz and it will not work reliable at + * 100KHz, this has been confirmed on multiple different q8 tablets. + * The gsl1680 is the only device on this bus. + */ + clock-frequency = <400000>; + + touchscreen: touchscreen@40 { + reg = <0x40>; + interrupt-parent = <&pio>; + interrupts = <1 5 IRQ_TYPE_EDGE_FALLING>; /* PB5 */ + pinctrl-names = "default"; + pinctrl-0 = <&ts_power_pin>; + power-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */ + /* Tablet dts must provide reg and compatible */ + status = "disabled"; + }; +}; + +&mmc0 { + pinctrl-names = "default"; + pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin>; + vmmc-supply = <®_dcdc1>; + bus-width = <4>; + cd-gpios = <&pio 1 4 GPIO_ACTIVE_LOW>; /* PB4 */ + status = "okay"; +}; + +&pio { + mmc0_cd_pin: mmc0_cd_pin@0 { + pins = "PB4"; + function = "gpio_in"; + bias-pull-up; + }; + + ts_power_pin: ts_power_pin@0 { + pins = "PH1"; + function = "gpio_out"; + }; + + usb0_id_detect_pin: usb0_id_detect_pin@0 { + pins = "PH8"; + function = "gpio_in"; + bias-pull-up; + }; +}; + +&r_rsb { + status = "okay"; + + axp22x: pmic@3a3 { + compatible = "x-powers,axp223"; + reg = <0x3a3>; + interrupt-parent = <&nmi_intc>; + interrupts = <0 IRQ_TYPE_LEVEL_LOW>; + eldoin-supply = <®_dcdc1>; + drivevbus-supply = <®_vcc5v0>; + x-powers,drive-vbus-en; + }; +}; + +#include "axp223.dtsi" + +&ac_power_supply { + status = "okay"; +}; + +&battery_power_supply { + status = "okay"; +}; + +®_aldo1 { + regulator-always-on; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3000000>; + regulator-name = "vcc-io"; +}; + +®_aldo2 { + regulator-always-on; + regulator-min-microvolt = <2350000>; + regulator-max-microvolt = <2650000>; + regulator-name = "vdd-dll"; +}; + +®_aldo3 { + regulator-always-on; + regulator-min-microvolt = <2700000>; + regulator-max-microvolt = <3300000>; + regulator-name = "vcc-pll-avcc"; +}; + +®_dc1sw { + regulator-name = "vcc-lcd"; +}; + +®_dc5ldo { + regulator-always-on; + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <1400000>; + regulator-name = "vdd-cpus"; +}; + +®_dcdc1 { + regulator-always-on; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3000000>; + regulator-name = "vcc-3v0"; +}; + +®_dcdc2 { + regulator-always-on; + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <1400000>; + regulator-name = "vdd-sys"; +}; + +®_dcdc3 { + regulator-always-on; + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <1400000>; + regulator-name = "vdd-cpu"; +}; + +®_dcdc5 { + regulator-always-on; + regulator-min-microvolt = <1500000>; + regulator-max-microvolt = <1500000>; + regulator-name = "vcc-dram"; +}; + +®_dldo1 { + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-name = "vcc-wifi"; +}; + +®_drivevbus { + regulator-name = "usb0-vbus"; + status = "okay"; +}; + +®_ldo_io1 { + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-name = "vcc-touchscreen"; + status = "okay"; +}; + +®_rtc_ldo { + regulator-name = "vcc-rtc"; +}; + +&cpu0 { + cpu-supply = <®_dcdc2>; +}; + +&r_uart { + pinctrl-names = "default"; + pinctrl-0 = <&r_uart_pins_a>; + status = "okay"; +}; + +&simplefb_lcd { + vcc-lcd-supply = <®_dc1sw>; +}; + +&usb_otg { + dr_mode = "otg"; + status = "okay"; +}; + +&usb_power_supply { + status = "okay"; +}; + +&usbphy { + pinctrl-names = "default"; + pinctrl-0 = <&usb0_id_detect_pin>; + usb0_id_det-gpio = <&pio 7 8 GPIO_ACTIVE_HIGH>; /* PH8 */ + usb0_vbus_power-supply = <&usb_power_supply>; + usb0_vbus-supply = <®_drivevbus>; + status = "okay"; +}; |