Commit ce63e97b authored by Chris Morgan's avatar Chris Morgan Committed by Jernej Skrabec
Browse files

ARM: dts: sunxi: add support for Anbernic RG-Nano 



The Anbernic RG-Nano is a small portable game device based on the
Allwinner V3s SoC. It has GPIO buttons on the face and side for
input, a single mono speaker, a 240x240 SPI controlled display, a USB-C
OTG port, an SD card slot for booting, and 64MB of RAM included in the
SoC. There does not appear to be a crystal feeding the internal RTC so
it does not keep proper time (for me it ran 8 hours slow in a 24 hour
period). External RTC works just fine.

Working/Tested:
- SDMMC
- UART (for debugging)
- Buttons
- Charging/battery/PMIC
- Speaker
- RTC (external RTC)
- USB
- Display

Signed-off-by: default avatarChris Morgan <macromorgan@hotmail.com>
Reviewed-by: default avatarAndre Przywara <andre.przywara@arm.com>
Acked-by: default avatarJernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: default avatarSamuel Holland <samuel@sholland.org>
Link: https://lore.kernel.org/r/20230929144441.3409-5-macroalpha82@gmail.com


Signed-off-by: default avatarJernej Skrabec <jernej.skrabec@gmail.com>
parent 50fa4947

arch/arm/boot/dts/allwinner/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -256,6 +256,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \ 
	sun8i-t113s-mangopi-mq-r-t113.dtb \

	sun8i-t3-cqa3t-bv3.dtb \

	sun8i-v3-sl631-imx179.dtb \

	sun8i-v3s-anbernic-rg-nano.dtb \

	sun8i-v3s-licheepi-zero.dtb \

	sun8i-v3s-licheepi-zero-dock.dtb \

	sun8i-v40-bananapi-m2-berry.dtb

arch/arm/boot/dts/allwinner/sun8i-v3s-anbernic-rg-nano.dts

0 → 100644
+276 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)



/dts-v1/;

#include <dt-bindings/input/linux-event-codes.h>

#include "sun8i-v3s.dtsi"

#include "sunxi-common-regulators.dtsi"



/ {

	model = "Anbernic RG Nano";

	compatible = "anbernic,rg-nano", "allwinner,sun8i-v3s";



	aliases {

		rtc0 = &pcf8563;

		rtc1 = &rtc;

		serial0 = &uart0;

	};



	backlight: backlight {

		compatible = "pwm-backlight";

		brightness-levels = <0 1 2 3 8 14 21 32 46 60 80 100>;

		default-brightness-level = <11>;

		power-supply = <&reg_vcc5v0>;

		pwms = <&pwm 0 40000 1>;

	};



	chosen {

		stdout-path = "serial0:115200n8";

	};



	gpio_keys: gpio-keys {

		compatible = "gpio-keys";



		button-a {

			gpios = <&gpio_expander 12 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

			label = "BTN-A";

			linux,code = <BTN_EAST>;

		};



		button-b {

			gpios = <&gpio_expander 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

			label = "BTN-B";

			linux,code = <BTN_SOUTH>;

		};



		button-down {

			gpios = <&gpio_expander 1 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

			label = "DPAD-DOWN";

			linux,code = <BTN_DPAD_DOWN>;

		};



		button-left {

			gpios = <&gpio_expander 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

			label = "DPAD-LEFT";

			linux,code = <BTN_DPAD_LEFT>;

		};



		button-right {

			gpios = <&gpio_expander 0 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

			label = "DPAD-RIGHT";

			linux,code = <BTN_DPAD_RIGHT>;

		};



		button-se {

			gpios = <&gpio_expander 7 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

			label = "BTN-SELECT";

			linux,code = <BTN_SELECT>;

		};



		button-st {

			gpios = <&gpio_expander 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

			label = "BTN-START";

			linux,code = <BTN_START>;

		};



		button-tl {

			gpios = <&gpio_expander 2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

			label = "BTN-L";

			linux,code = <BTN_TL>;

		};



		button-tr {

			gpios = <&gpio_expander 15 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

			label = "BTN-R";

			linux,code = <BTN_TR>;

		};



		button-up {

			gpios = <&gpio_expander 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

			label = "DPAD-UP";

			linux,code = <BTN_DPAD_UP>;

		};



		button-x {

			gpios = <&gpio_expander 11 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

			label = "BTN-X";

			linux,code = <BTN_NORTH>;

		};



		button-y {

			gpios = <&gpio_expander 13 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

			label = "BTN-Y";

			linux,code = <BTN_WEST>;

		};

	};

};



&codec {

	allwinner,audio-routing = "Speaker", "HP",

				  "MIC1", "Mic",

				  "Mic", "HBIAS";

	allwinner,pa-gpios = <&pio 5 6 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /* PF6 */

	status = "okay";

};



&ehci {

	status = "okay";

};



&i2c0 {

	status = "okay";



	gpio_expander: gpio@20 {

		compatible = "nxp,pcal6416";

		reg = <0x20>;

		gpio-controller;

		#gpio-cells = <2>;

		#interrupt-cells = <2>;

		interrupt-controller;

		interrupt-parent = <&pio>;

		interrupts = <1 3 IRQ_TYPE_EDGE_BOTH>; /* PB3/EINT3 */

		vcc-supply = <&reg_vcc3v3>;

	};



	axp209: pmic@34 {

		reg = <0x34>;

		interrupt-parent = <&pio>;

		interrupts = <1 5 IRQ_TYPE_EDGE_FALLING>; /* PB5/EINT5 */

	};



	pcf8563: rtc@51 {

		compatible = "nxp,pcf8563";

		reg = <0x51>;

	};

};



#include "axp209.dtsi"



&battery_power_supply {

	status = "okay";

};



&mmc0 {

	broken-cd;

	bus-width = <4>;

	disable-wp;

	vmmc-supply = <&reg_vcc3v3>;

	vqmmc-supply = <&reg_vcc3v3>;

	status = "okay";

};



&ohci {

	status = "okay";

};



&pio {

	vcc-pb-supply = <&reg_vcc3v3>;

	vcc-pc-supply = <&reg_vcc3v3>;

	vcc-pf-supply = <&reg_vcc3v3>;

	vcc-pg-supply = <&reg_vcc3v3>;



	spi0_no_miso_pins: spi0-no-miso-pins {

		pins = "PC1", "PC2", "PC3";

		function = "spi0";

	};

};



&pwm {

	pinctrl-0 = <&pwm0_pin>;

	pinctrl-names = "default";

	status = "okay";

};



/* DCDC2 wired into vdd-cpu, vdd-sys, and vdd-ephy. */

&reg_dcdc2 {

	regulator-always-on;

	regulator-max-microvolt = <1250000>;

	regulator-min-microvolt = <1250000>;

	regulator-name = "vdd-cpu";

};



/* DCDC3 wired into every 3.3v input that isn't the RTC. */

&reg_dcdc3 {

	regulator-always-on;

	regulator-max-microvolt = <3300000>;

	regulator-min-microvolt = <3300000>;

	regulator-name = "vcc-io";

};



/* LDO1 wired into RTC, voltage is hard-wired at 3.3v. */

&reg_ldo1 {

	regulator-always-on;

	regulator-name = "vcc-rtc";

};



/* LDO2 wired into VCC-PLL and audio codec. */

&reg_ldo2 {

	regulator-always-on;

	regulator-max-microvolt = <3000000>;

	regulator-min-microvolt = <3000000>;

	regulator-name = "vcc-pll";

};



/* LDO3, LDO4, and LDO5 unused. */

&reg_ldo3 {

	status = "disabled";

};



&reg_ldo4 {

	status = "disabled";

};



/* RTC uses internal oscillator */

&rtc {

	/delete-property/ clocks;

};



&spi0 {

	pinctrl-0 = <&spi0_no_miso_pins>;

	pinctrl-names = "default";

	status = "okay";



	display@0 {

		compatible = "saef,sftc154b", "panel-mipi-dbi-spi";

		reg = <0>;

		backlight = <&backlight>;

		dc-gpios = <&pio 2 0 GPIO_ACTIVE_HIGH>; /* PC0 */

		reset-gpios = <&pio 1 2 GPIO_ACTIVE_HIGH>; /* PB2 */

		spi-max-frequency = <100000000>;



		height-mm = <39>;

		width-mm = <39>;



		/* Set hb-porch to compensate for non-visible area */

		panel-timing {

			hactive = <240>;

			vactive = <240>;

			hback-porch = <80>;

			vback-porch = <0>;

			clock-frequency = <0>;

			hfront-porch = <0>;

			hsync-len = <0>;

			vfront-porch = <0>;

			vsync-len = <0>;

		};

	};

};



&uart0 {

	pinctrl-0 = <&uart0_pb_pins>;

	pinctrl-names = "default";

	status = "okay";

};



&usb_otg {

	dr_mode = "otg";

	status = "okay";

};



&usb_power_supply {

	status = "okay";

};



&usbphy {

	usb0_id_det-gpios = <&pio 6 5 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* PG5 */

	status = "okay";

};