[PATCH] board: rockchip: add Anbernic RGXX3 Series Devices
Kever Yang
kever.yang at rock-chips.com
Sat May 6 11:42:17 CEST 2023
On 2023/4/21 23:59, Chris Morgan wrote:
> From: Chris Morgan <macromorgan at hotmail.com>
>
> The Anbernic RGxx3 is a "pseudo-device" that encompasses the following
> devices:
>
> - Anbernic RG353M
> - Anbernic RG353P
> - Anbernic RG353V
> - Anbernic RG353VS
> - Anbernic RG503
>
> The rk3566-anbernic-rgxx3.dtsi is synced with upstream Linux, but
> rk3566-anbernic-rgxx3.dts is a U-Boot specific devicetree that
> is used for all RGxx3 devices.
>
> Via the board.c file, the bootloader automatically sets the correct
> fdtfile, board, and board_name environment variables so that the
> correct devicetree can be passed to Linux. It is also possible to
> simply hard-code a single devicetree in the boot.scr file and use
> that to load Linux as well.
>
> The common specifications for each device are:
>
> - Rockchip RK3566 SoC
> - 2 external SDMMC slots
> - 1 USB-C host port, 1 USB-C peripheral port
> - 1 mini-HDMI output
> - MIPI-DSI based display panel
> - ADC controlled joysticks with a GPIO mux
> - GPIO buttons
> - A PWM controlled vibrator
> - An ADC controlled button
>
> All of the common features are defined in the devicetree synced from
> upstream Linux.
>
> TODO: DSI panel auto-detection for the RG353 devices (requires porting
> of DSI controller driver and DSI-DPHY driver to send DSI commands to
> the panel).
>
> Signed-off-by: Chris Morgan <macromorgan at hotmail.com>
Reviewed-by: Kever Yang <kever.yang at rock-chips.com>
Thanks,
- Kever
>
> Changes from V1:
> - Fixed sphinx error for title underline.
> - Updated u-boot.dtsi file to support bootph.
> ---
> arch/arm/dts/Makefile | 1 +
> .../arm/dts/rk3566-anbernic-rgxx3-u-boot.dtsi | 86 ++
> arch/arm/dts/rk3566-anbernic-rgxx3.dts | 18 +
> arch/arm/dts/rk3566-anbernic-rgxx3.dtsi | 786 ++++++++++++++++++
> arch/arm/mach-rockchip/rk3568/Kconfig | 14 +
> board/anbernic/rgxx3_rk3566/Kconfig | 15 +
> board/anbernic/rgxx3_rk3566/MAINTAINERS | 6 +
> board/anbernic/rgxx3_rk3566/Makefile | 6 +
> board/anbernic/rgxx3_rk3566/rgxx3-rk3566.c | 203 +++++
> configs/anbernic-rgxx3_defconfig | 78 ++
> doc/board/anbernic/index.rst | 9 +
> doc/board/anbernic/rgxx3.rst | 47 ++
> doc/board/index.rst | 1 +
> doc/board/rockchip/rockchip.rst | 3 +
> include/configs/anbernic-rgxx3-rk3566.h | 12 +
> 15 files changed, 1285 insertions(+)
> create mode 100644 arch/arm/dts/rk3566-anbernic-rgxx3-u-boot.dtsi
> create mode 100644 arch/arm/dts/rk3566-anbernic-rgxx3.dts
> create mode 100644 arch/arm/dts/rk3566-anbernic-rgxx3.dtsi
> create mode 100644 board/anbernic/rgxx3_rk3566/Kconfig
> create mode 100644 board/anbernic/rgxx3_rk3566/MAINTAINERS
> create mode 100644 board/anbernic/rgxx3_rk3566/Makefile
> create mode 100644 board/anbernic/rgxx3_rk3566/rgxx3-rk3566.c
> create mode 100644 configs/anbernic-rgxx3_defconfig
> create mode 100644 doc/board/anbernic/index.rst
> create mode 100644 doc/board/anbernic/rgxx3.rst
> create mode 100644 include/configs/anbernic-rgxx3-rk3566.h
>
> diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
> index 337bee7e1e..22cb5bc3db 100644
> --- a/arch/arm/dts/Makefile
> +++ b/arch/arm/dts/Makefile
> @@ -165,6 +165,7 @@ dtb-$(CONFIG_ROCKCHIP_RK3399) += \
> rk3399pro-rock-pi-n10.dtb
>
> dtb-$(CONFIG_ROCKCHIP_RK3568) += \
> + rk3566-anbernic-rgxx3.dtb \
> rk3568-evb.dtb \
> rk3566-radxa-cm3-io.dtb \
> rk3568-rock-3a.dtb
> diff --git a/arch/arm/dts/rk3566-anbernic-rgxx3-u-boot.dtsi b/arch/arm/dts/rk3566-anbernic-rgxx3-u-boot.dtsi
> new file mode 100644
> index 0000000000..a18e5d1cf7
> --- /dev/null
> +++ b/arch/arm/dts/rk3566-anbernic-rgxx3-u-boot.dtsi
> @@ -0,0 +1,86 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +
> +#include "rk356x-u-boot.dtsi"
> +
> +/ {
> + chosen {
> + stdout-path = &uart2;
> + u-boot,spl-boot-order = "same-as-spl", &sdmmc1, &sdmmc0;
> + };
> +
> + rng: rng at fe388000 {
> + compatible = "rockchip,cryptov2-rng";
> + reg = <0x0 0xfe388000 0x0 0x2000>;
> + status = "okay";
> + };
> +};
> +
> +&cru {
> + assigned-clocks =
> + <&pmucru CLK_RTC_32K>,
> + <&pmucru PLL_PPLL>,
> + <&pmucru PCLK_PMU>, <&cru PLL_CPLL>,
> + <&cru PLL_GPLL>,
> + <&cru ACLK_BUS>, <&cru PCLK_BUS>,
> + <&cru ACLK_TOP_HIGH>, <&cru ACLK_TOP_LOW>,
> + <&cru HCLK_TOP>, <&cru PCLK_TOP>,
> + <&cru ACLK_PERIMID>, <&cru HCLK_PERIMID>,
> + <&cru CPLL_500M>, <&cru CPLL_333M>,
> + <&cru CPLL_250M>, <&cru CPLL_125M>,
> + <&cru CPLL_100M>, <&cru CPLL_62P5M>,
> + <&cru CPLL_50M>, <&cru CPLL_25M>;
> + assigned-clock-rates =
> + <32768>,
> + <200000000>,
> + <100000000>, <1000000000>,
> + <1188000000>,
> + <150000000>, <100000000>,
> + <500000000>, <400000000>,
> + <150000000>, <100000000>,
> + <300000000>, <150000000>,
> + <500000000>, <333333333>,
> + <250000000>, <125000000>,
> + <100000000>, <62500000>,
> + <50000000>, <25000000>;
> + assigned-clock-parents =
> + <&pmucru CLK_RTC32K_FRAC>;
> +};
> +
> +&i2c2 {
> + status = "okay";
> +};
> +
> +&pmucru {
> + assigned-clocks = <&pmucru SCLK_32K_IOE>;
> + assigned-clock-parents = <&pmucru CLK_RTC_32K>;
> +};
> +
> +/*
> + * We don't need the clocks, but if they are present they may cause
> + * probing to fail so we remove them for U-Boot.
> + */
> +&rk817 {
> + /delete-property/ assigned-clocks;
> + /delete-property/ assigned-clock-parents;
> + /delete-property/ clocks;
> + /delete-property/ clock-names;
> +};
> +
> +&sdhci {
> + pinctrl-0 = <&emmc_bus8>, <&emmc_clk>, <&emmc_cmd>,
> + <&emmc_datastrobe>, <&emmc_rstnout>;
> + pinctrl-names = "default";
> + bus-width = <8>;
> + max-frequency = <200000000>;
> + mmc-hs200-1_8v;
> + non-removable;
> + vmmc-supply = <&vcc_3v3>;
> + vqmmc-supply = <&vcc_1v8>;
> + status = "okay";
> +};
> +
> +&uart2 {
> + clock-frequency = <24000000>;
> + bootph-all;
> + status = "okay";
> +};
> diff --git a/arch/arm/dts/rk3566-anbernic-rgxx3.dts b/arch/arm/dts/rk3566-anbernic-rgxx3.dts
> new file mode 100644
> index 0000000000..404dddfafb
> --- /dev/null
> +++ b/arch/arm/dts/rk3566-anbernic-rgxx3.dts
> @@ -0,0 +1,18 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +
> +/dts-v1/;
> +
> +#include "rk3566-anbernic-rgxx3.dtsi"
> +
> +/ {
> +
> +/*
> + * Note this is a pseudo-model that doesn't exist in mainline Linux.
> + * This model is used for all RGXX3 devices and the board.c file will
> + * set the correct dtb name for loading mainline Linux automatically.
> + */
> + model = "RGXX3";
> + compatible = "anbernic,rg353m", "anbernic,rg353p",
> + "anbernic,rg353v", "anbernic,rg353vs",
> + "anbernic,rg503", "rockchip,rk3566";
> +};
> diff --git a/arch/arm/dts/rk3566-anbernic-rgxx3.dtsi b/arch/arm/dts/rk3566-anbernic-rgxx3.dtsi
> new file mode 100644
> index 0000000000..ad43fa199c
> --- /dev/null
> +++ b/arch/arm/dts/rk3566-anbernic-rgxx3.dtsi
> @@ -0,0 +1,786 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +
> +/dts-v1/;
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/linux-event-codes.h>
> +#include <dt-bindings/leds/common.h>
> +#include <dt-bindings/pinctrl/rockchip.h>
> +#include <dt-bindings/soc/rockchip,vop2.h>
> +#include "rk3566.dtsi"
> +
> +/ {
> + chosen: chosen {
> + stdout-path = "serial2:1500000n8";
> + };
> +
> + adc-joystick {
> + compatible = "adc-joystick";
> + io-channels = <&adc_mux 0>,
> + <&adc_mux 1>,
> + <&adc_mux 2>,
> + <&adc_mux 3>;
> + pinctrl-0 = <&joy_mux_en>;
> + pinctrl-names = "default";
> + poll-interval = <60>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + axis at 0 {
> + reg = <0>;
> + abs-flat = <32>;
> + abs-fuzz = <32>;
> + abs-range = <1023 15>;
> + linux,code = <ABS_X>;
> + };
> +
> + axis at 1 {
> + reg = <1>;
> + abs-flat = <32>;
> + abs-fuzz = <32>;
> + abs-range = <15 1023>;
> + linux,code = <ABS_RX>;
> + };
> +
> + axis at 2 {
> + reg = <2>;
> + abs-flat = <32>;
> + abs-fuzz = <32>;
> + abs-range = <15 1023>;
> + linux,code = <ABS_Y>;
> + };
> +
> + axis at 3 {
> + reg = <3>;
> + abs-flat = <32>;
> + abs-fuzz = <32>;
> + abs-range = <1023 15>;
> + linux,code = <ABS_RY>;
> + };
> + };
> +
> + adc_keys: adc-keys {
> + compatible = "adc-keys";
> + io-channels = <&saradc 0>;
> + io-channel-names = "buttons";
> + keyup-threshold-microvolt = <1800000>;
> + poll-interval = <60>;
> +
> + /*
> + * Button is mapped to F key in BSP kernel, but
> + * according to input guidelines it should be mode.
> + */
> + button-mode {
> + label = "MODE";
> + linux,code = <BTN_MODE>;
> + press-threshold-microvolt = <1750>;
> + };
> + };
> +
> + adc_mux: adc-mux {
> + compatible = "io-channel-mux";
> + channels = "left_x", "right_x", "left_y", "right_y";
> + #io-channel-cells = <1>;
> + io-channels = <&saradc 3>;
> + io-channel-names = "parent";
> + mux-controls = <&gpio_mux>;
> + settle-time-us = <100>;
> + };
> +
> + gpio_keys_control: gpio-keys-control {
> + compatible = "gpio-keys";
> + pinctrl-0 = <&btn_pins_ctrl>;
> + pinctrl-names = "default";
> +
> + button-b {
> + gpios = <&gpio3 RK_PC3 GPIO_ACTIVE_LOW>;
> + label = "SOUTH";
> + linux,code = <BTN_SOUTH>;
> + };
> +
> + button-down {
> + gpios = <&gpio3 RK_PA4 GPIO_ACTIVE_LOW>;
> + label = "DPAD-DOWN";
> + linux,code = <BTN_DPAD_DOWN>;
> + };
> +
> + button-l1 {
> + gpios = <&gpio3 RK_PB1 GPIO_ACTIVE_LOW>;
> + label = "TL";
> + linux,code = <BTN_TL>;
> + };
> +
> + button-l2 {
> + gpios = <&gpio3 RK_PB2 GPIO_ACTIVE_LOW>;
> + label = "TL2";
> + linux,code = <BTN_TL2>;
> + };
> +
> + button-select {
> + gpios = <&gpio3 RK_PB6 GPIO_ACTIVE_LOW>;
> + label = "SELECT";
> + linux,code = <BTN_SELECT>;
> + };
> +
> + button-start {
> + gpios = <&gpio3 RK_PB5 GPIO_ACTIVE_LOW>;
> + label = "START";
> + linux,code = <BTN_START>;
> + };
> +
> + button-thumbl {
> + gpios = <&gpio3 RK_PA1 GPIO_ACTIVE_LOW>;
> + label = "THUMBL";
> + linux,code = <BTN_THUMBL>;
> + };
> +
> + button-thumbr {
> + gpios = <&gpio3 RK_PA2 GPIO_ACTIVE_LOW>;
> + label = "THUMBR";
> + linux,code = <BTN_THUMBR>;
> + };
> +
> + button-up {
> + gpios = <&gpio3 RK_PA3 GPIO_ACTIVE_LOW>;
> + label = "DPAD-UP";
> + linux,code = <BTN_DPAD_UP>;
> + };
> +
> + button-x {
> + gpios = <&gpio3 RK_PC0 GPIO_ACTIVE_LOW>;
> + label = "NORTH";
> + linux,code = <BTN_NORTH>;
> + };
> + };
> +
> + gpio_keys_vol: gpio-keys-vol {
> + compatible = "gpio-keys";
> + autorepeat;
> + pinctrl-0 = <&btn_pins_vol>;
> + pinctrl-names = "default";
> +
> + button-vol-down {
> + gpios = <&gpio3 RK_PB0 GPIO_ACTIVE_LOW>;
> + label = "VOLUMEDOWN";
> + linux,code = <KEY_VOLUMEDOWN>;
> + };
> +
> + button-vol-up {
> + gpios = <&gpio3 RK_PA7 GPIO_ACTIVE_LOW>;
> + label = "VOLUMEUP";
> + linux,code = <KEY_VOLUMEUP>;
> + };
> + };
> +
> + gpio_mux: mux-controller {
> + compatible = "gpio-mux";
> + mux-gpios = <&gpio0 RK_PB6 GPIO_ACTIVE_LOW>,
> + <&gpio0 RK_PB7 GPIO_ACTIVE_LOW>;
> + #mux-control-cells = <0>;
> + };
> +
> + hdmi-con {
> + compatible = "hdmi-connector";
> + ddc-i2c-bus = <&i2c5>;
> + type = "c";
> +
> + port {
> + hdmi_con_in: endpoint {
> + remote-endpoint = <&hdmi_out_con>;
> + };
> + };
> + };
> +
> + leds: gpio-leds {
> + compatible = "gpio-leds";
> + pinctrl-0 = <&led_pins>;
> + pinctrl-names = "default";
> +
> + green_led: led-0 {
> + color = <LED_COLOR_ID_GREEN>;
> + default-state = "on";
> + function = LED_FUNCTION_POWER;
> + gpios = <&gpio0 RK_PC5 GPIO_ACTIVE_HIGH>;
> + };
> +
> + amber_led: led-1 {
> + color = <LED_COLOR_ID_AMBER>;
> + function = LED_FUNCTION_CHARGING;
> + gpios = <&gpio0 RK_PC6 GPIO_ACTIVE_HIGH>;
> + retain-state-suspended;
> + };
> +
> + red_led: led-2 {
> + color = <LED_COLOR_ID_RED>;
> + default-state = "off";
> + function = LED_FUNCTION_STATUS;
> + gpios = <&gpio0 RK_PC7 GPIO_ACTIVE_HIGH>;
> + };
> + };
> +
> + sdio_pwrseq: sdio-pwrseq {
> + compatible = "mmc-pwrseq-simple";
> + clocks = <&rk817 1>;
> + clock-names = "ext_clock";
> + pinctrl-0 = <&wifi_enable_h>;
> + pinctrl-names = "default";
> + post-power-on-delay-ms = <200>;
> + reset-gpios = <&gpio4 RK_PA2 GPIO_ACTIVE_LOW>;
> + };
> +
> + vcc3v3_lcd0_n: regulator-vcc3v3-lcd0 {
> + compatible = "regulator-fixed";
> + gpio = <&gpio0 RK_PC2 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + pinctrl-0 = <&vcc_lcd_h>;
> + pinctrl-names = "default";
> + regulator-boot-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcc3v3_lcd0_n";
> + vin-supply = <&vcc_3v3>;
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vcc_sys: regulator-vcc-sys {
> + compatible = "regulator-fixed";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <3800000>;
> + regulator-max-microvolt = <3800000>;
> + regulator-name = "vcc_sys";
> + };
> +
> + vcc_wifi: regulator-vcc-wifi {
> + compatible = "regulator-fixed";
> + enable-active-high;
> + gpio = <&gpio0 RK_PA0 GPIO_ACTIVE_HIGH>;
> + pinctrl-0 = <&vcc_wifi_h>;
> + pinctrl-names = "default";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcc_wifi";
> + };
> +
> + vibrator: pwm-vibrator {
> + compatible = "pwm-vibrator";
> + pwm-names = "enable";
> + pwms = <&pwm5 0 1000000000 0>;
> + };
> +};
> +
> +&combphy1 {
> + status = "okay";
> +};
> +
> +&cpu0 {
> + cpu-supply = <&vdd_cpu>;
> +};
> +
> +&cpu1 {
> + cpu-supply = <&vdd_cpu>;
> +};
> +
> +&cpu2 {
> + cpu-supply = <&vdd_cpu>;
> +};
> +
> +&cpu3 {
> + cpu-supply = <&vdd_cpu>;
> +};
> +
> +&gpu {
> + mali-supply = <&vdd_gpu>;
> + status = "okay";
> +};
> +
> +&hdmi {
> + ddc-i2c-bus = <&i2c5>;
> + pinctrl-0 = <&hdmitxm0_cec>;
> + pinctrl-names = "default";
> + status = "okay";
> +};
> +
> +&hdmi_in {
> + hdmi_in_vp0: endpoint {
> + remote-endpoint = <&vp0_out_hdmi>;
> + };
> +};
> +
> +&hdmi_out {
> + hdmi_out_con: endpoint {
> + remote-endpoint = <&hdmi_con_in>;
> + };
> +};
> +
> +&hdmi_sound {
> + status = "okay";
> +};
> +
> +&i2c0 {
> + status = "okay";
> +
> + rk817: pmic at 20 {
> + compatible = "rockchip,rk817";
> + reg = <0x20>;
> + interrupt-parent = <&gpio0>;
> + interrupts = <RK_PA3 IRQ_TYPE_LEVEL_LOW>;
> + clock-output-names = "rk808-clkout1", "rk808-clkout2";
> + clock-names = "mclk";
> + clocks = <&cru I2S1_MCLKOUT_TX>;
> + assigned-clocks = <&cru I2S1_MCLKOUT_TX>;
> + assigned-clock-parents = <&cru CLK_I2S1_8CH_TX>;
> + #clock-cells = <1>;
> + #sound-dai-cells = <0>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&i2s1m0_mclk>, <&pmic_int_l>;
> + wakeup-source;
> +
> + vcc1-supply = <&vcc_sys>;
> + vcc2-supply = <&vcc_sys>;
> + vcc3-supply = <&vcc_sys>;
> + vcc4-supply = <&vcc_sys>;
> + vcc5-supply = <&vcc_sys>;
> + vcc6-supply = <&vcc_sys>;
> + vcc7-supply = <&vcc_sys>;
> + vcc8-supply = <&vcc_sys>;
> + vcc9-supply = <&dcdc_boost>;
> +
> + regulators {
> + vdd_logic: DCDC_REG1 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <500000>;
> + regulator-max-microvolt = <1350000>;
> + regulator-init-microvolt = <900000>;
> + regulator-ramp-delay = <6001>;
> + regulator-initial-mode = <0x2>;
> + regulator-name = "vdd_logic";
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + regulator-suspend-microvolt = <900000>;
> + };
> + };
> +
> + vdd_gpu: DCDC_REG2 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <500000>;
> + regulator-max-microvolt = <1350000>;
> + regulator-init-microvolt = <900000>;
> + regulator-ramp-delay = <6001>;
> + regulator-initial-mode = <0x2>;
> + regulator-name = "vdd_gpu";
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vcc_ddr: DCDC_REG3 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-initial-mode = <0x2>;
> + regulator-name = "vcc_ddr";
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + };
> + };
> +
> + vcc_3v3: DCDC_REG4 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-initial-mode = <0x2>;
> + regulator-name = "vcc_3v3";
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <3300000>;
> + };
> + };
> +
> + vcca1v8_pmu: LDO_REG1 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-name = "vcca1v8_pmu";
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <1800000>;
> + };
> + };
> +
> + vdda_0v9: LDO_REG2 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <900000>;
> + regulator-max-microvolt = <900000>;
> + regulator-name = "vdda_0v9";
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vdda0v9_pmu: LDO_REG3 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <900000>;
> + regulator-max-microvolt = <900000>;
> + regulator-name = "vdda0v9_pmu";
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <900000>;
> + };
> + };
> +
> + vccio_acodec: LDO_REG4 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vccio_acodec";
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vccio_sd: LDO_REG5 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vccio_sd";
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vcc3v3_pmu: LDO_REG6 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcc3v3_pmu";
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <3300000>;
> + };
> + };
> +
> + vcc_1v8: LDO_REG7 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-name = "vcc_1v8";
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vcc1v8_dvp: LDO_REG8 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcc1v8_dvp";
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vcc2v8_dvp: LDO_REG9 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + regulator-name = "vcc2v8_dvp";
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + dcdc_boost: BOOST {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <4700000>;
> + regulator-max-microvolt = <5400000>;
> + regulator-name = "boost";
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + otg_switch: OTG_SWITCH {
> + regulator-name = "otg_switch";
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> + };
> + };
> +
> + vdd_cpu: regulator at 40 {
> + compatible = "fcs,fan53555";
> + reg = <0x40>;
> + fcs,suspend-voltage-selector = <1>;
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <712500>;
> + regulator-max-microvolt = <1390000>;
> + regulator-init-microvolt = <900000>;
> + regulator-name = "vdd_cpu";
> + regulator-ramp-delay = <2300>;
> + vin-supply = <&vcc_sys>;
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +};
> +
> +&i2c1 {
> + /* Unknown/unused device at 0x3c */
> + status = "disabled";
> +};
> +
> +&i2c5 {
> + pinctrl-0 = <&i2c5m1_xfer>;
> + pinctrl-names = "default";
> + status = "okay";
> +};
> +
> +&i2s0_8ch {
> + status = "okay";
> +};
> +
> +&i2s1_8ch {
> + pinctrl-0 = <&i2s1m0_sclktx
> + &i2s1m0_lrcktx
> + &i2s1m0_sdi0
> + &i2s1m0_sdo0>;
> + pinctrl-names = "default";
> + rockchip,trcm-sync-tx-only;
> + status = "okay";
> +};
> +
> +&pinctrl {
> + gpio-btns {
> + btn_pins_ctrl: btn-pins-ctrl {
> + rockchip,pins =
> + <3 RK_PA1 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PA3 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PA4 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PA6 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PB1 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PB2 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PB3 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PB4 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PB5 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PB6 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PC0 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PC1 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PC2 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PC3 RK_FUNC_GPIO &pcfg_pull_up>;
> + };
> +
> + btn_pins_vol: btn-pins-vol {
> + rockchip,pins =
> + <3 RK_PA7 RK_FUNC_GPIO &pcfg_pull_up>,
> + <3 RK_PB0 RK_FUNC_GPIO &pcfg_pull_up>;
> + };
> + };
> +
> + gpio-led {
> + led_pins: led-pins {
> + rockchip,pins =
> + <0 RK_PC5 RK_FUNC_GPIO &pcfg_pull_none>,
> + <0 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>,
> + <0 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> + };
> +
> + joy-mux {
> + joy_mux_en: joy-mux-en {
> + rockchip,pins =
> + <0 RK_PB5 RK_FUNC_GPIO &pcfg_output_low>;
> + };
> + };
> +
> + pmic {
> + pmic_int_l: pmic-int-l {
> + rockchip,pins =
> + <0 RK_PA3 RK_FUNC_GPIO &pcfg_pull_up>;
> + };
> + };
> +
> + sdio-pwrseq {
> + wifi_enable_h: wifi-enable-h {
> + rockchip,pins =
> + <4 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> + };
> +
> + vcc3v3-lcd {
> + vcc_lcd_h: vcc-lcd-h {
> + rockchip,pins =
> + <0 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> + };
> +
> + vcc-wifi {
> + vcc_wifi_h: vcc-wifi-h {
> + rockchip,pins =
> + <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> + };
> +};
> +
> +&pmu_io_domains {
> + status = "okay";
> + pmuio1-supply = <&vcc3v3_pmu>;
> + pmuio2-supply = <&vcc3v3_pmu>;
> + vccio1-supply = <&vccio_acodec>;
> + vccio3-supply = <&vccio_sd>;
> + vccio4-supply = <&vcc_1v8>;
> + vccio5-supply = <&vcc_3v3>;
> + vccio6-supply = <&vcc1v8_dvp>;
> + vccio7-supply = <&vcc_3v3>;
> +};
> +
> +&pwm5 {
> + status = "okay";
> +};
> +
> +&saradc {
> + vref-supply = <&vcc_1v8>;
> + status = "okay";
> +};
> +
> +&sdmmc0 {
> + bus-width = <4>;
> + cap-sd-highspeed;
> + cd-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_LOW>;
> + disable-wp;
> + pinctrl-0 = <&sdmmc0_bus4 &sdmmc0_clk &sdmmc0_cmd &sdmmc0_det>;
> + pinctrl-names = "default";
> + sd-uhs-sdr104;
> + vmmc-supply = <&vcc_3v3>;
> + vqmmc-supply = <&vccio_sd>;
> + status = "okay";
> +};
> +
> +&sdmmc1 {
> + bus-width = <4>;
> + cap-sd-highspeed;
> + cd-gpios = <&gpio2 RK_PB2 GPIO_ACTIVE_LOW>;
> + disable-wp;
> + pinctrl-0 = <&sdmmc1_bus4 &sdmmc1_cmd &sdmmc1_clk &sdmmc1_det>;
> + pinctrl-names = "default";
> + sd-uhs-sdr104;
> + vmmc-supply = <&vcc_3v3>;
> + vqmmc-supply = <&vcc1v8_dvp>;
> + status = "okay";
> +};
> +
> +&sdmmc2 {
> + bus-width = <4>;
> + cap-sd-highspeed;
> + cap-sdio-irq;
> + keep-power-in-suspend;
> + mmc-pwrseq = <&sdio_pwrseq>;
> + non-removable;
> + pinctrl-0 = <&sdmmc2m0_bus4 &sdmmc2m0_cmd &sdmmc2m0_clk>;
> + pinctrl-names = "default";
> + vmmc-supply = <&vcc_wifi>;
> + vqmmc-supply = <&vcca1v8_pmu>;
> + status = "okay";
> +};
> +
> +&tsadc {
> + rockchip,hw-tshut-mode = <1>;
> + rockchip,hw-tshut-polarity = <0>;
> + status = "okay";
> +};
> +
> +&uart1 {
> + pinctrl-0 = <&uart1m1_xfer &uart1m1_ctsn &uart1m1_rtsn>;
> + pinctrl-names = "default";
> + uart-has-rtscts;
> + status = "okay";
> +
> + bluetooth {
> + compatible = "realtek,rtl8821cs-bt", "realtek,rtl8723bs-bt";
> + device-wake-gpios = <&gpio4 4 GPIO_ACTIVE_HIGH>;
> + enable-gpios = <&gpio4 3 GPIO_ACTIVE_HIGH>;
> + host-wake-gpios = <&gpio4 5 GPIO_ACTIVE_HIGH>;
> + };
> +};
> +
> +&uart2 {
> + status = "okay";
> +};
> +
> +/*
> + * Lack the schematics to verify, but port works as a peripheral
> + * (and not a host or OTG port).
> + */
> +&usb_host0_xhci {
> + dr_mode = "peripheral";
> + phys = <&usb2phy0_otg>;
> + phy-names = "usb2-phy";
> + status = "okay";
> +};
> +
> +&usb_host1_ehci {
> + status = "okay";
> +};
> +
> +&usb_host1_ohci {
> + status = "okay";
> +};
> +
> +&usb_host1_xhci {
> + phy-names = "usb2-phy", "usb3-phy";
> + phys = <&usb2phy1_host>, <&combphy1 PHY_TYPE_USB3>;
> + status = "okay";
> +};
> +
> +&usb2phy0 {
> + status = "okay";
> +};
> +
> +&usb2phy0_otg {
> + status = "okay";
> +};
> +
> +&usb2phy1 {
> + status = "okay";
> +};
> +
> +&usb2phy1_host {
> + status = "okay";
> +};
> +
> +&vop {
> + assigned-clocks = <&cru DCLK_VOP0>, <&cru DCLK_VOP1>;
> + assigned-clock-parents = <&pmucru PLL_HPLL>, <&cru PLL_VPLL>;
> + status = "okay";
> +};
> +
> +&vop_mmu {
> + status = "okay";
> +};
> +
> +&vp0 {
> + vp0_out_hdmi: endpoint at ROCKCHIP_VOP2_EP_HDMI0 {
> + reg = <ROCKCHIP_VOP2_EP_HDMI0>;
> + remote-endpoint = <&hdmi_in_vp0>;
> + };
> +};
> diff --git a/arch/arm/mach-rockchip/rk3568/Kconfig b/arch/arm/mach-rockchip/rk3568/Kconfig
> index 4e7c02cce0..94e04b79e7 100644
> --- a/arch/arm/mach-rockchip/rk3568/Kconfig
> +++ b/arch/arm/mach-rockchip/rk3568/Kconfig
> @@ -1,11 +1,24 @@
> if ROCKCHIP_RK3568
>
> +choice
> + prompt "RK3568/RK3566 board select"
> +
> config TARGET_EVB_RK3568
> bool "RK3568 evaluation board"
> select BOARD_LATE_INIT
> help
> RK3568 EVB is a evaluation board for Rockchp RK3568.
>
> +config TARGET_ANBERNIC_RGXX3_RK3566
> + bool "Anbernic RGXX3"
> + help
> + Anbernic RGXX3 gaming device with Rockchip RK3566. This
> + config can be used with the RG353M, RG353P, RG353V, RG353VS,
> + and RG503. The correct device tree name will automatically
> + be selected by the bootloader.
> +
> +endchoice
> +
> config ROCKCHIP_BOOT_MODE_REG
> default 0xfdc20200
>
> @@ -19,5 +32,6 @@ config SYS_MALLOC_F_LEN
> default 0x2000
>
> source "board/rockchip/evb_rk3568/Kconfig"
> +source "board/anbernic/rgxx3_rk3566/Kconfig"
>
> endif
> diff --git a/board/anbernic/rgxx3_rk3566/Kconfig b/board/anbernic/rgxx3_rk3566/Kconfig
> new file mode 100644
> index 0000000000..6743a28a2f
> --- /dev/null
> +++ b/board/anbernic/rgxx3_rk3566/Kconfig
> @@ -0,0 +1,15 @@
> +if TARGET_ANBERNIC_RGXX3_RK3566
> +
> +config SYS_BOARD
> + default "rgxx3_rk3566"
> +
> +config SYS_VENDOR
> + default "anbernic"
> +
> +config SYS_CONFIG_NAME
> + default "anbernic-rgxx3-rk3566"
> +
> +config BOARD_SPECIFIC_OPTIONS
> + def_bool y
> +
> +endif
> diff --git a/board/anbernic/rgxx3_rk3566/MAINTAINERS b/board/anbernic/rgxx3_rk3566/MAINTAINERS
> new file mode 100644
> index 0000000000..647e49d28a
> --- /dev/null
> +++ b/board/anbernic/rgxx3_rk3566/MAINTAINERS
> @@ -0,0 +1,6 @@
> +RGXX3-RK3566
> +M: Chris Morgan <macromorgan at hotmail.com>
> +S: Maintained
> +F: board/anbernic/rgxx3-rk3566
> +F: include/configs/anbernic-rgxx3-rk3566
> +F: configs/anbernic-rgxx3_defconfig
> diff --git a/board/anbernic/rgxx3_rk3566/Makefile b/board/anbernic/rgxx3_rk3566/Makefile
> new file mode 100644
> index 0000000000..afd3e0adf6
> --- /dev/null
> +++ b/board/anbernic/rgxx3_rk3566/Makefile
> @@ -0,0 +1,6 @@
> +# SPDX-License-Identifier: GPL-2.0+
> +#
> +# Copyright (c) 2023 Chris Morgan <macromorgan at hotmail.com>
> +#
> +
> +obj-y += rgxx3-rk3566.o
> diff --git a/board/anbernic/rgxx3_rk3566/rgxx3-rk3566.c b/board/anbernic/rgxx3_rk3566/rgxx3-rk3566.c
> new file mode 100644
> index 0000000000..decc46db78
> --- /dev/null
> +++ b/board/anbernic/rgxx3_rk3566/rgxx3-rk3566.c
> @@ -0,0 +1,203 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Copyright (c) 2023 Chris Morgan <macromorgan at hotmail.com>
> + */
> +
> +#include <abuf.h>
> +#include <adc.h>
> +#include <asm/io.h>
> +#include <dm.h>
> +#include <linux/delay.h>
> +#include <pwm.h>
> +#include <rng.h>
> +#include <stdlib.h>
> +#include <mmc.h>
> +#include <env.h>
> +
> +#define GPIO0_BASE 0xfdd60000
> +#define GPIO_SWPORT_DR_H 0x0004
> +#define GPIO_SWPORT_DDR_H 0x000c
> +#define GPIO_A5 BIT(5)
> +#define GPIO_A6 BIT(6)
> +
> +#define GPIO_WRITEMASK(bits) ((bits) << 16)
> +
> +#define DTB_DIR "rockchip/"
> +
> +struct rg3xx_model {
> + const char *board;
> + const char *board_name;
> + const char *fdtfile;
> +};
> +
> +enum rgxx3_device_id {
> + RG353M,
> + RG353P,
> + RG353V,
> + RG353VS,
> + RG503,
> +};
> +
> +static const struct rg3xx_model rg3xx_model_details[] = {
> + [RG353M] = {
> + "rk3566-anbernic-rg353m",
> + "RG353M",
> + DTB_DIR "rk3566-anbernic-rg353m.dtb",
> + },
> + [RG353P] = {
> + "rk3566-anbernic-rg353p",
> + "RG353P",
> + DTB_DIR "rk3566-anbernic-rg353p.dtb",
> + },
> + [RG353V] = {
> + "rk3566-anbernic-rg353v",
> + "RG353V",
> + DTB_DIR "rk3566-anbernic-rg353v.dtb",
> + },
> + [RG353VS] = {
> + "rk3566-anbernic-rg353vs",
> + "RG353VS",
> + DTB_DIR "rk3566-anbernic-rg353vs.dtb",
> + },
> + [RG503] = {
> + "rk3566-anbernic-rg503",
> + "RG503",
> + DTB_DIR "rk3566-anbernic-rg503.dtb",
> + },
> +};
> +
> +/*
> + * Start LED very early so user knows device is on. Set color
> + * to amber.
> + */
> +void spl_board_init(void)
> +{
> + /* Set GPIO0_A5 and GPIO0_A6 to output. */
> + writel(GPIO_WRITEMASK(GPIO_A6 | GPIO_A5) | (GPIO_A6 | GPIO_A5),
> + (GPIO0_BASE + GPIO_SWPORT_DDR_H));
> + /* Set GPIO0_A5 to 0 and GPIO0_A6 to 1. */
> + writel(GPIO_WRITEMASK(GPIO_A6 | GPIO_A5) | GPIO_A6,
> + (GPIO0_BASE + GPIO_SWPORT_DR_H));
> +}
> +
> +/* Use hardware rng to seed Linux random. */
> +int board_rng_seed(struct abuf *buf)
> +{
> + struct udevice *dev;
> + size_t len = 0x8;
> + u64 *data;
> +
> + data = malloc(len);
> + if (!data) {
> + printf("Out of memory\n");
> + return -ENOMEM;
> + }
> +
> + if (uclass_get_device(UCLASS_RNG, 0, &dev) || !dev) {
> + printf("No RNG device\n");
> + return -ENODEV;
> + }
> +
> + if (dm_rng_read(dev, data, len)) {
> + printf("Reading RNG failed\n");
> + return -EIO;
> + }
> +
> + abuf_init_set(buf, data, len);
> +
> + return 0;
> +}
> +
> +/*
> + * Buzz the buzzer so the user knows something is going on. Make it
> + * optional in case PWM is disabled.
> + */
> +void __maybe_unused startup_buzz(void)
> +{
> + struct udevice *dev;
> + int err;
> +
> + err = uclass_get_device(UCLASS_PWM, 0, &dev);
> + if (err)
> + printf("pwm not found\n");
> +
> + pwm_set_enable(dev, 0, 1);
> + mdelay(200);
> + pwm_set_enable(dev, 0, 0);
> +}
> +
> +/* Detect which Anbernic RGXX3 device we are using so as to load the
> + * correct devicetree for Linux. Set an environment variable once
> + * found. The detection depends on the value of ADC channel 1, the
> + * presence of an eMMC on mmc0, and querying the DSI panel (TODO).
> + */
> +int rgxx3_detect_device(void)
> +{
> + u32 adc_info;
> + int ret;
> + int board_id = -ENXIO;
> + struct mmc *mmc;
> +
> + ret = adc_channel_single_shot("saradc at fe720000", 1, &adc_info);
> + if (ret) {
> + printf("Read SARADC failed with error %d\n", ret);
> + return ret;
> + }
> +
> + /* Observed value 517. */
> + if (adc_info > 505 && adc_info < 530)
> + board_id = RG353M;
> + /* Observed value 695. */
> + if (adc_info > 680 && adc_info < 710)
> + board_id = RG353V;
> + /* Documented value 860. */
> + if (adc_info > 850 && adc_info < 870)
> + board_id = RG353P;
> + /* Observed value 1023. */
> + if (adc_info > 1010)
> + board_id = RG503;
> +
> + /*
> + * Try to access the eMMC on an RG353V. If it's missing, it's
> + * an RG353VS. Note we could also check for a touchscreen at
> + * 0x1a on i2c2.
> + */
> + if (board_id == RG353V) {
> + mmc = find_mmc_device(0);
> + if (mmc) {
> + ret = mmc_init(mmc);
> + if (ret)
> + board_id = RG353VS;
> + }
> + }
> +
> + if (board_id < 0)
> + return board_id;
> +
> + env_set("board", rg3xx_model_details[board_id].board);
> + env_set("board_name",
> + rg3xx_model_details[board_id].board_name);
> + env_set("fdtfile", rg3xx_model_details[board_id].fdtfile);
> +
> + return 0;
> +}
> +
> +int rk_board_late_init(void)
> +{
> + int ret;
> +
> + /* Turn off orange LED and turn on green LED. */
> + writel(GPIO_WRITEMASK(GPIO_A6 | GPIO_A5) | GPIO_A5,
> + (GPIO0_BASE + GPIO_SWPORT_DR_H));
> +
> + ret = rgxx3_detect_device();
> + if (ret) {
> + printf("Unable to detect device type: %d\n", ret);
> + return ret;
> + }
> +
> + if (IS_ENABLED(CONFIG_DM_PWM))
> + startup_buzz();
> +
> + return 0;
> +}
> diff --git a/configs/anbernic-rgxx3_defconfig b/configs/anbernic-rgxx3_defconfig
> new file mode 100644
> index 0000000000..b17e917914
> --- /dev/null
> +++ b/configs/anbernic-rgxx3_defconfig
> @@ -0,0 +1,78 @@
> +CONFIG_ARM=y
> +CONFIG_SKIP_LOWLEVEL_INIT=y
> +CONFIG_COUNTER_FREQUENCY=24000000
> +CONFIG_ARCH_ROCKCHIP=y
> +CONFIG_TEXT_BASE=0x00a00000
> +CONFIG_SPL_LIBCOMMON_SUPPORT=y
> +CONFIG_SPL_LIBGENERIC_SUPPORT=y
> +CONFIG_NR_DRAM_BANKS=2
> +CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
> +CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0xc00000
> +CONFIG_DEFAULT_DEVICE_TREE="rk3566-anbernic-rgxx3"
> +CONFIG_ROCKCHIP_RK3568=y
> +CONFIG_SPL_ROCKCHIP_BACK_TO_BROM=y
> +CONFIG_SPL_ROCKCHIP_COMMON_BOARD=y
> +CONFIG_SPL_MMC=y
> +CONFIG_SPL_SERIAL=y
> +CONFIG_SPL_STACK_R_ADDR=0x600000
> +CONFIG_TARGET_ANBERNIC_RGXX3_RK3566=y
> +CONFIG_SPL_STACK=0x400000
> +CONFIG_DEBUG_UART_BASE=0xFE660000
> +CONFIG_DEBUG_UART_CLOCK=24000000
> +CONFIG_SYS_LOAD_ADDR=0xc00800
> +CONFIG_DEBUG_UART=y
> +CONFIG_FIT=y
> +CONFIG_FIT_VERBOSE=y
> +CONFIG_SPL_LOAD_FIT=y
> +CONFIG_DEFAULT_FDT_FILE="rockchip/rk3566-anbernic-rgxx3.dtb"
> +# CONFIG_DISPLAY_CPUINFO is not set
> +CONFIG_DISPLAY_BOARDINFO_LATE=y
> +CONFIG_SPL_MAX_SIZE=0x20000
> +CONFIG_SPL_PAD_TO=0x7f8000
> +CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
> +CONFIG_SPL_BSS_START_ADDR=0x4000000
> +CONFIG_SPL_BSS_MAX_SIZE=0x4000
> +CONFIG_SPL_BOARD_INIT=y
> +# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
> +# CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
> +CONFIG_SPL_STACK_R=y
> +CONFIG_SPL_ATF=y
> +CONFIG_CMD_PWM=y
> +CONFIG_CMD_GPT=y
> +CONFIG_CMD_MMC=y
> +# CONFIG_CMD_SETEXPR is not set
> +# CONFIG_SPL_DOS_PARTITION is not set
> +CONFIG_SPL_OF_CONTROL=y
> +CONFIG_OF_LIVE=y
> +CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
> +# CONFIG_NET is not set
> +CONFIG_SPL_REGMAP=y
> +CONFIG_SPL_SYSCON=y
> +CONFIG_SPL_CLK=y
> +CONFIG_ARM_SMCCC_FEATURES=y
> +CONFIG_SCMI_FIRMWARE=y
> +CONFIG_ROCKCHIP_GPIO=y
> +CONFIG_SYS_I2C_ROCKCHIP=y
> +CONFIG_MISC=y
> +CONFIG_SUPPORT_EMMC_RPMB=y
> +CONFIG_MMC_DW=y
> +CONFIG_MMC_DW_ROCKCHIP=y
> +CONFIG_MMC_SDHCI=y
> +CONFIG_MMC_SDHCI_SDMA=y
> +CONFIG_MMC_SDHCI_ROCKCHIP=y
> +CONFIG_DM_PMIC=y
> +CONFIG_DM_PMIC_FAN53555=y
> +CONFIG_PMIC_RK8XX=y
> +CONFIG_REGULATOR_PWM=y
> +CONFIG_DM_REGULATOR_GPIO=y
> +CONFIG_REGULATOR_RK8XX=y
> +CONFIG_DM_REGULATOR_SCMI=y
> +CONFIG_PWM_ROCKCHIP=y
> +CONFIG_SPL_RAM=y
> +CONFIG_BAUDRATE=1500000
> +CONFIG_DEBUG_UART_SHIFT=2
> +CONFIG_SYS_NS16550_MEM32=y
> +CONFIG_SYSRESET=y
> +CONFIG_REGEX=y
> +CONFIG_ERRNO_STR=y
> +# CONFIG_EFI_LOADER is not set
> diff --git a/doc/board/anbernic/index.rst b/doc/board/anbernic/index.rst
> new file mode 100644
> index 0000000000..03758d8613
> --- /dev/null
> +++ b/doc/board/anbernic/index.rst
> @@ -0,0 +1,9 @@
> +.. SPDX-License-Identifier: GPL-2.0+
> +
> +Anbernic
> +========
> +
> +.. toctree::
> + :maxdepth: 2
> +
> + rgxx3.rst
> diff --git a/doc/board/anbernic/rgxx3.rst b/doc/board/anbernic/rgxx3.rst
> new file mode 100644
> index 0000000000..afa7538282
> --- /dev/null
> +++ b/doc/board/anbernic/rgxx3.rst
> @@ -0,0 +1,47 @@
> +.. SPDX-License-Identifier: GPL-2.0+
> +
> +U-Boot for Anbernic RGxx3 Devices
> +=================================
> +
> +This allows U-Boot to boot the following Anbernic devices:
> +
> + - Anbernic RG353M
> + - Anbernic RG353P
> + - Anbernic RG353V
> + - Anbernic RG353VS
> + - Anbernic RG503
> +
> +The correct device is detected automatically by comparing ADC values
> +from ADC channel 1. In the event of an RG353V, an attempt is then made
> +to probe for an eMMC and if it fails the device is assumed to be an
> +RG353VS. Based on the detected device, the environment variables
> +"board", "board_name", and "fdtfile" are set to the correct values
> +corresponding to the board which can be read by a boot script to boot
> +with the correct device tree.
> +
> +Please note that there are some versions of the RG353 devices with
> +different panels. Panel auto-detection is planned for a later date.
> +
> +Building U-Boot
> +---------------
> +
> +.. code-block:: bash
> +
> + $ export CROSS_COMPILE=aarch64-none-elf-
> + $ export BL31=../rkbin/bin/rk35/rk3568_bl31_v1.34.elf
> + $ export ROCKCHIP_TPL=../rkbin/bin/rk35/rk3568_ddr_1056MHz_v1.13.bin
> + $ make anbernic-rgxx3_defconfig
> + $ make
> +
> +This will build ``u-boot-rockchip.bin`` which can be written to an SD
> +card.
> +
> +Image installation
> +------------------
> +
> +Write the ``u-boot-rockchip.bin`` to an SD card offset 32kb from the
> +start.
> +
> +.. code-block:: bash
> +
> + $ dd if=u-boot-rockchip.bin of=/dev/mmcblk0 bs=512 seek=64
> diff --git a/doc/board/index.rst b/doc/board/index.rst
> index 69e2cd5fb8..820eb71d71 100644
> --- a/doc/board/index.rst
> +++ b/doc/board/index.rst
> @@ -11,6 +11,7 @@ Board-specific doc
> AndesTech/index
> allwinner/index
> amlogic/index
> + anbernic/index
> apple/index
> armltd/index
> atmel/index
> diff --git a/doc/board/rockchip/rockchip.rst b/doc/board/rockchip/rockchip.rst
> index b5563b8f7f..204cace1e9 100644
> --- a/doc/board/rockchip/rockchip.rst
> +++ b/doc/board/rockchip/rockchip.rst
> @@ -87,6 +87,9 @@ List of mainline supported Rockchip boards:
> - Rockchip Evb-RK3399 (evb_rk3399)
> - Theobroma Systems RK3399-Q7 SoM - Puma (puma_rk3399)
>
> +* rk3566
> + - Anbernic RGxx3 (rgxx3-rk3566)
> +
> * rk3568
> - Rockchip Evb-RK3568 (evb-rk3568)
>
> diff --git a/include/configs/anbernic-rgxx3-rk3566.h b/include/configs/anbernic-rgxx3-rk3566.h
> new file mode 100644
> index 0000000000..3c4ea4e7d8
> --- /dev/null
> +++ b/include/configs/anbernic-rgxx3-rk3566.h
> @@ -0,0 +1,12 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +
> +#ifndef __ANBERNIC_RGXX3_RK3566_H
> +#define __ANBERNIC_RGXX3_RK3566_H
> +
> +#include <configs/rk3568_common.h>
> +
> +#define ROCKCHIP_DEVICE_SETTINGS \
> + "stdout=serial,vidconsole\0" \
> + "stderr=serial,vidconsole\0"
> +
> +#endif
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