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

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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: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Samuel Holland <samuel@sholland.org>
Link: https://lore.kernel.org/r/20230929144441.3409-5-macroalpha82@gmail.com
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
This commit is contained in:
Chris Morgan 2023-09-29 09:44:41 -05:00 committed by Jernej Skrabec
parent 50fa4947ef
commit ce63e97b67
2 changed files with 277 additions and 0 deletions
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1
arch/arm/boot/dts/allwinner/Makefile
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@ -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

276
arch/arm/boot/dts/allwinner/sun8i-v3s-anbernic-rg-nano.dts Normal file
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@ -0,0 +1,276 @@
// 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";
};