[PATCH V2] board: rockchip: add Powkiddy X55
Chris Morgan
macroalpha82 at gmail.com
Thu Jan 18 16:01:48 CET 2024
On Thu, Jan 18, 2024 at 02:37:04PM +0800, Kever Yang wrote:
> Hi Chris,
>
> On 2023/12/15 02:24, Chris Morgan wrote:
> > From: Chris Morgan <macromorgan at hotmail.com>
> >
> > The Powkiddy X55 is a Rockchip RK3566 based handheld gaming device.
> > UART, ADC, eMMC, and SDMMC are tested to work in U-Boot and this
> > successfully boots mainline Linux.
> Pls add info about where is the main dts from.
The main DTS is from mainline Linux; I'll include that in the notes for
the next revision, and move the changelog to below the dashes.
Thank you.
> >
> > Changes since V1:
> This info should not be part of the commit message.
> > - Built on top of this patch series [1] which makes the ADC detect
> > function more generic and also moves the board_rng_seed to a more
> > generic location.
> > - Updated U-Boot specific devicetree to drop redundant values and
> > add nodes required for ADC detection in SPL.
> > - Updated defconfig to add additional options for SPL ADC detection
> > logic as well as drop some drivers that are not needed. Note that
> > CONFIG_DM_PMIC_FAN53555 is used by the tcs,tcs4525 regulator on
> > i2c0 at 0x1c. Additionally the code fails to compile without
> > selecting CONFIG_SPL_ROCKCHIP_BACK_TO_BROM.
> >
> > [1] https://lore.kernel.org/u-boot/20231211232125.171438-1-macroalpha82@gmail.com/
> >
> > Signed-off-by: Chris Morgan <macromorgan at hotmail.com>
> > ---
> > arch/arm/dts/Makefile | 1 +
> > arch/arm/dts/rk3566-powkiddy-x55-u-boot.dtsi | 67 ++
> > arch/arm/dts/rk3566-powkiddy-x55.dts | 926 +++++++++++++++++++
> > arch/arm/mach-rockchip/rk3568/Kconfig | 6 +
> > board/powkiddy/x55/Kconfig | 15 +
> > board/powkiddy/x55/MAINTAINERS | 9 +
> > board/powkiddy/x55/Makefile | 6 +
> > board/powkiddy/x55/x55.c | 42 +
> > configs/powkiddy-x55-rk3566_defconfig | 92 ++
> > doc/board/index.rst | 1 +
> > doc/board/powkiddy/index.rst | 9 +
> > doc/board/powkiddy/x55.rst | 25 +
> > doc/board/rockchip/rockchip.rst | 1 +
> > include/configs/powkiddy-x55-rk3566.h | 14 +
> > 14 files changed, 1214 insertions(+)
> > create mode 100644 arch/arm/dts/rk3566-powkiddy-x55-u-boot.dtsi
> > create mode 100644 arch/arm/dts/rk3566-powkiddy-x55.dts
> > create mode 100644 board/powkiddy/x55/Kconfig
> > create mode 100644 board/powkiddy/x55/MAINTAINERS
> > create mode 100644 board/powkiddy/x55/Makefile
> > create mode 100644 board/powkiddy/x55/x55.c
> > create mode 100644 configs/powkiddy-x55-rk3566_defconfig
> > create mode 100644 doc/board/powkiddy/index.rst
> > create mode 100644 doc/board/powkiddy/x55.rst
> > create mode 100644 include/configs/powkiddy-x55-rk3566.h
> >
> > diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
> > index 5fc888680b..6e5cb7c3e9 100644
> > --- a/arch/arm/dts/Makefile
> > +++ b/arch/arm/dts/Makefile
> > @@ -172,6 +172,7 @@ dtb-$(CONFIG_ROCKCHIP_RK3399) += \
> > dtb-$(CONFIG_ROCKCHIP_RK3568) += \
> > rk3566-anbernic-rgxx3.dtb \
> > + rk3566-powkiddy-x55.dtb \
> > rk3566-quartz64-a.dtb \
> > rk3566-quartz64-b.dtb \
> > rk3566-radxa-cm3-io.dtb \
> > diff --git a/arch/arm/dts/rk3566-powkiddy-x55-u-boot.dtsi b/arch/arm/dts/rk3566-powkiddy-x55-u-boot.dtsi
> > new file mode 100644
> > index 0000000000..1a3089b598
> > --- /dev/null
> > +++ b/arch/arm/dts/rk3566-powkiddy-x55-u-boot.dtsi
> > @@ -0,0 +1,67 @@
> > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> > +
> > +#include "rk356x-u-boot.dtsi"
> > +
> > +/ {
> > + chosen {
> > + stdout-path = &uart2;
> > + };
> > +
> > + 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 PLL_VPLL>,
> > + <&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>,
> > + <1200000000>, <126400000>,
> > + <150000000>, <100000000>,
> > + <500000000>, <400000000>,
> > + <150000000>, <100000000>,
> > + <300000000>, <150000000>,
> > + <500000000>, <333333333>,
> > + <250000000>, <125000000>,
> > + <100000000>, <62500000>,
> > + <50000000>, <25000000>;
>
> Why change the clock in U-Boot?
>
> usually this dts also used by kernel, and only little change for U-Boot
> features;
>
> Thanks,
>
> - Kever
I will remove and test. Thank you.
>
> > + assigned-clock-parents =
> > + <&pmucru CLK_RTC32K_FRAC>;
> > +};
> > +
> > +&pmucru {
> > + assigned-clocks = <&pmucru SCLK_32K_IOE>;
> > + assigned-clock-parents = <&pmucru CLK_RTC_32K>;
> > +};
> > +
> > +/* Move the saradc to a fixed regulator so that it works in SPL. */
> > +&saradc {
> > + bootph-all;
> > + vref-supply = <&vcc_sys>;
> > + status = "okay";
> > +};
> > +
> > +&uart2 {
> > + clock-frequency = <24000000>;
> > + bootph-all;
> > + status = "okay";
> > +};
> > +
> > +&vcc_sys {
> > + bootph-all;
> > + status = "okay";
> > +};
> > diff --git a/arch/arm/dts/rk3566-powkiddy-x55.dts b/arch/arm/dts/rk3566-powkiddy-x55.dts
> > new file mode 100644
> > index 0000000000..4786b19fd0
> > --- /dev/null
> > +++ b/arch/arm/dts/rk3566-powkiddy-x55.dts
> > @@ -0,0 +1,926 @@
> > +// 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"
> > +
> > +/ {
> > + model = "Powkiddy x55";
> > + compatible = "powkiddy,x55", "rockchip,rk3566";
> > +
> > + aliases {
> > + mmc0 = &sdhci;
> > + mmc1 = &sdmmc0;
> > + mmc2 = &sdmmc2;
> > + mmc3 = &sdmmc1;
> > + };
> > +
> > + chosen: chosen {
> > + stdout-path = "serial2:1500000n8";
> > + };
> > +
> > + adc_joystick: adc-joystick {
> > + compatible = "adc-joystick";
> > + io-channels = <&saradc 0>, <&saradc 1>,
> > + <&saradc 2>, <&saradc 3>;
> > + poll-interval = <60>;
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + axis at 0 {
> > + reg = <0>;
> > + abs-flat = <30>;
> > + abs-fuzz = <20>;
> > + abs-range = <15 1023>;
> > + linux,code = <ABS_X>;
> > + };
> > +
> > + axis at 1 {
> > + reg = <1>;
> > + abs-flat = <30>;
> > + abs-fuzz = <20>;
> > + abs-range = <1023 15>;
> > + linux,code = <ABS_Y>;
> > + };
> > +
> > + axis at 2 {
> > + reg = <2>;
> > + abs-flat = <30>;
> > + abs-fuzz = <20>;
> > + abs-range = <15 1023>;
> > + linux,code = <ABS_RX>;
> > + };
> > +
> > + axis at 3 {
> > + reg = <3>;
> > + abs-flat = <30>;
> > + abs-fuzz = <20>;
> > + abs-range = <1023 15>;
> > + linux,code = <ABS_RY>;
> > + };
> > + };
> > +
> > + backlight: backlight {
> > + compatible = "pwm-backlight";
> > + power-supply = <&vcc_sys>;
> > + pwms = <&pwm4 0 25000 0>;
> > + };
> > +
> > + battery: battery {
> > + compatible = "simple-battery";
> > + charge-full-design-microamp-hours = <4000000>;
> > + charge-term-current-microamp = <300000>;
> > + constant-charge-current-max-microamp = <2000000>;
> > + constant-charge-voltage-max-microvolt = <4300000>;
> > + factory-internal-resistance-micro-ohms = <91000>;
> > + voltage-max-design-microvolt = <4138000>;
> > + voltage-min-design-microvolt = <3400000>;
> > +
> > + ocv-capacity-celsius = <20>;
> > + ocv-capacity-table-0 = <4138000 100>, <4083000 95>, <4059000 90>, <4044000 85>,
> > + <4030000 80>, <4020000 75>, <4006000 70>, <3972000 65>,
> > + <3934000 60>, <3904000 55>, <3878000 50>, <3857000 45>,
> > + <3843000 40>, <3826000 35>, <3801000 30>, <3768000 25>,
> > + <3735000 20>, <3688000 15>, <3621000 10>, <3553000 5>,
> > + <3400000 0>;
> > + };
> > +
> > + gpio_keys_control: gpio-keys-control {
> > + compatible = "gpio-keys";
> > + pinctrl-0 = <&btn_pins_ctrl>;
> > + pinctrl-names = "default";
> > +
> > + button-a {
> > + gpios = <&gpio3 RK_PD3 GPIO_ACTIVE_LOW>;
> > + label = "EAST";
> > + linux,code = <BTN_EAST>;
> > + };
> > +
> > + button-b {
> > + gpios = <&gpio3 RK_PD2 GPIO_ACTIVE_LOW>;
> > + label = "SOUTH";
> > + linux,code = <BTN_SOUTH>;
> > + };
> > +
> > + button-down {
> > + gpios = <&gpio4 RK_PA1 GPIO_ACTIVE_LOW>;
> > + label = "DPAD-DOWN";
> > + linux,code = <BTN_DPAD_DOWN>;
> > + };
> > +
> > + button-l1 {
> > + gpios = <&gpio3 RK_PD0 GPIO_ACTIVE_LOW>;
> > + label = "TL";
> > + linux,code = <BTN_TL>;
> > + };
> > +
> > + button-l2 {
> > + gpios = <&gpio3 RK_PD1 GPIO_ACTIVE_LOW>;
> > + label = "TL2";
> > + linux,code = <BTN_TL2>;
> > + };
> > +
> > + button-left {
> > + gpios = <&gpio3 RK_PD6 GPIO_ACTIVE_LOW>;
> > + label = "DPAD-LEFT";
> > + linux,code = <BTN_DPAD_LEFT>;
> > + };
> > +
> > + button-right {
> > + gpios = <&gpio3 RK_PD7 GPIO_ACTIVE_LOW>;
> > + label = "DPAD-RIGHT";
> > + linux,code = <BTN_DPAD_RIGHT>;
> > + };
> > +
> > + button-select {
> > + gpios = <&gpio4 RK_PA4 GPIO_ACTIVE_LOW>;
> > + label = "SELECT";
> > + linux,code = <BTN_SELECT>;
> > + };
> > +
> > + button-start {
> > + gpios = <&gpio4 RK_PA2 GPIO_ACTIVE_LOW>;
> > + label = "START";
> > + linux,code = <BTN_START>;
> > + };
> > +
> > + button-thumbl {
> > + gpios = <&gpio4 RK_PA7 GPIO_ACTIVE_LOW>;
> > + label = "THUMBL";
> > + linux,code = <BTN_THUMBL>;
> > + };
> > +
> > + button-thumbr {
> > + gpios = <&gpio4 RK_PB0 GPIO_ACTIVE_LOW>;
> > + label = "THUMBR";
> > + linux,code = <BTN_THUMBR>;
> > + };
> > +
> > + button-r1 {
> > + gpios = <&gpio3 RK_PC6 GPIO_ACTIVE_LOW>;
> > + label = "TR";
> > + linux,code = <BTN_TR>;
> > + };
> > +
> > + button-r2 {
> > + gpios = <&gpio3 RK_PC7 GPIO_ACTIVE_LOW>;
> > + label = "TR2";
> > + linux,code = <BTN_TR2>;
> > + };
> > +
> > + button-up {
> > + gpios = <&gpio4 RK_PA0 GPIO_ACTIVE_LOW>;
> > + label = "DPAD-UP";
> > + linux,code = <BTN_DPAD_UP>;
> > + };
> > +
> > + button-x {
> > + gpios = <&gpio3 RK_PD5 GPIO_ACTIVE_LOW>;
> > + label = "NORTH";
> > + linux,code = <BTN_NORTH>;
> > + };
> > +
> > + button-y {
> > + gpios = <&gpio3 RK_PD4 GPIO_ACTIVE_LOW>;
> > + label = "WEST";
> > + linux,code = <BTN_WEST>;
> > + };
> > + };
> > +
> > + gpio_keys_vol: gpio-keys-vol {
> > + compatible = "gpio-keys";
> > + autorepeat;
> > + pinctrl-0 = <&btn_pins_vol>;
> > + pinctrl-names = "default";
> > +
> > + button-voldown {
> > + gpios = <&gpio4 RK_PA3 GPIO_ACTIVE_LOW>;
> > + label = "VOLUMEDOWN";
> > + linux,code = <KEY_VOLUMEDOWN>;
> > + };
> > +
> > + button-volup {
> > + gpios = <&gpio4 RK_PA5 GPIO_ACTIVE_LOW>;
> > + label = "VOLUMEUP";
> > + linux,code = <KEY_VOLUMEUP>;
> > + };
> > + };
> > +
> > + gpio_leds: gpio-leds {
> > + compatible = "gpio-leds";
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&led_pins>;
> > +
> > + red_led: led-0 {
> > + color = <LED_COLOR_ID_RED>;
> > + default-state = "off";
> > + gpios = <&gpio4 RK_PB4 GPIO_ACTIVE_HIGH>;
> > + function = LED_FUNCTION_STATUS;
> > + };
> > +
> > + green_led: led-1 {
> > + color = <LED_COLOR_ID_GREEN>;
> > + default-state = "on";
> > + gpios = <&gpio4 RK_PB5 GPIO_ACTIVE_HIGH>;
> > + function = LED_FUNCTION_POWER;
> > + };
> > +
> > + amber_led: led-2 {
> > + color = <LED_COLOR_ID_AMBER>;
> > + gpios = <&gpio4 RK_PB6 GPIO_ACTIVE_HIGH>;
> > + function = LED_FUNCTION_CHARGING;
> > + };
> > +
> > + };
> > +
> > + hdmi-con {
> > + compatible = "hdmi-connector";
> > + ddc-i2c-bus = <&i2c5>;
> > + type = "c";
> > +
> > + port {
> > + hdmi_con_in: endpoint {
> > + remote-endpoint = <&hdmi_out_con>;
> > + };
> > + };
> > + };
> > +
> > + 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 = <&gpio0 RK_PC0 GPIO_ACTIVE_LOW>;
> > + };
> > +
> > + /* Channels reversed for both headphones and speakers. */
> > + sound {
> > + compatible = "simple-audio-card";
> > + pinctrl-0 = <&hp_det>;
> > + pinctrl-names = "default";
> > + simple-audio-card,name = "rk817_ext";
> > + simple-audio-card,aux-devs = <&spk_amp>;
> > + simple-audio-card,format = "i2s";
> > + simple-audio-card,hp-det-gpio = <&gpio4 RK_PC6 GPIO_ACTIVE_HIGH>;
> > + simple-audio-card,mclk-fs = <256>;
> > + simple-audio-card,widgets =
> > + "Microphone", "Mic Jack",
> > + "Headphone", "Headphones",
> > + "Speaker", "Internal Speakers";
> > + simple-audio-card,routing =
> > + "MICL", "Mic Jack",
> > + "Headphones", "HPOL",
> > + "Headphones", "HPOR",
> > + "Internal Speakers", "Speaker Amp OUTL",
> > + "Internal Speakers", "Speaker Amp OUTR",
> > + "Speaker Amp INL", "HPOL",
> > + "Speaker Amp INR", "HPOR";
> > + simple-audio-card,pin-switches = "Internal Speakers";
> > +
> > + simple-audio-card,codec {
> > + sound-dai = <&rk817>;
> > + };
> > +
> > + simple-audio-card,cpu {
> > + sound-dai = <&i2s1_8ch>;
> > + };
> > + };
> > +
> > + spk_amp: audio-amplifier {
> > + compatible = "simple-audio-amplifier";
> > + enable-gpios = <&gpio4 RK_PC2 GPIO_ACTIVE_HIGH>;
> > + pinctrl-0 = <&spk_amp_enable_h>;
> > + pinctrl-names = "default";
> > + sound-name-prefix = "Speaker Amp";
> > + };
> > +
> > + vcc5v0_host: regulator-vcc5v0-host {
> > + compatible = "regulator-fixed";
> > + enable-active-high;
> > + gpio = <&gpio4 RK_PC4 GPIO_ACTIVE_HIGH>;
> > + pinctrl-0 = <&vcc5v0_host_en>;
> > + pinctrl-names = "default";
> > + regulator-name = "vcc5v0_host";
> > + vin-supply = <&dcdc_boost>;
> > + };
> > +
> > + vcc_lcd: regulator-vcc-lcd {
> > + compatible = "regulator-fixed";
> > + enable-active-high;
> > + gpio = <&gpio0 RK_PC7 GPIO_ACTIVE_HIGH>;
> > + pinctrl-0 = <&vcc_lcd_en>;
> > + pinctrl-names = "default";
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> > + regulator-name = "vcc_lcd";
> > + };
> > +
> > + 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";
> > + gpio = <&gpio0 RK_PA0 GPIO_ACTIVE_LOW>;
> > + pinctrl-0 = <&vcc_wifi_h>;
> > + pinctrl-names = "default";
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> > + regulator-name = "vcc_wifi";
> > + };
> > +};
> > +
> > +&combphy1 {
> > + status = "okay";
> > +};
> > +
> > +&cru {
> > + assigned-clocks = <&pmucru CLK_RTC_32K>, <&cru PLL_GPLL>,
> > + <&pmucru PLL_PPLL>, <&cru PLL_VPLL>;
> > + assigned-clock-rates = <32768>, <1200000000>,
> > + <200000000>, <126400000>;
> > +};
> > +
> > +&cpu0 {
> > + cpu-supply = <&vdd_cpu>;
> > +};
> > +
> > +&cpu1 {
> > + cpu-supply = <&vdd_cpu>;
> > +};
> > +
> > +&cpu2 {
> > + cpu-supply = <&vdd_cpu>;
> > +};
> > +
> > +&cpu3 {
> > + cpu-supply = <&vdd_cpu>;
> > +};
> > +
> > +&dsi_dphy0 {
> > + status = "okay";
> > +};
> > +
> > +&dsi0 {
> > + status = "okay";
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + ports {
> > + dsi0_in: port at 0 {
> > + reg = <0>;
> > + dsi0_in_vp1: endpoint {
> > + remote-endpoint = <&vp1_out_dsi0>;
> > + };
> > + };
> > +
> > + dsi0_out: port at 1 {
> > + reg = <1>;
> > + mipi_out_panel: endpoint {
> > + remote-endpoint = <&mipi_in_panel>;
> > + };
> > + };
> > + };
> > +
> > + panel: panel at 0 {
> > + compatible = "powkiddy,x55-panel", "himax,hx8394";
> > + reg = <0>;
> > + backlight = <&backlight>;
> > + iovcc-supply = <&vcc_lcd>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&lcd_rst>;
> > + reset-gpios = <&gpio0 RK_PD5 GPIO_ACTIVE_LOW>;
> > + rotation = <270>;
> > + vcc-supply = <&vcc_lcd>;
> > +
> > + port {
> > + mipi_in_panel: endpoint {
> > + remote-endpoint = <&mipi_out_panel>;
> > + };
> > + };
> > + };
> > +};
> > +
> > +&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>;
> > + assigned-clocks = <&cru I2S1_MCLKOUT_TX>;
> > + assigned-clock-parents = <&cru CLK_I2S1_8CH_TX>;
> > + clock-names = "mclk";
> > + clock-output-names = "rk808-clkout1", "rk808-clkout2";
> > + clocks = <&cru I2S1_MCLKOUT_TX>;
> > + interrupt-parent = <&gpio0>;
> > + interrupts = <RK_PA3 IRQ_TYPE_LEVEL_LOW>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&i2s1m0_mclk>, <&pmic_int_l>;
> > + wakeup-source;
> > + #clock-cells = <1>;
> > + #sound-dai-cells = <0>;
> > +
> > + 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-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-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 = <1800000>;
> > + regulator-name = "vcc1v8_dvp";
> > + regulator-state-mem {
> > + regulator-on-in-suspend;
> > + };
> > + };
> > +
> > + vcc2v8_dvp: LDO_REG9 {
> > + regulator-always-on;
> > + regulator-boot-on;
> > + regulator-min-microvolt = <1800000>;
> > + regulator-max-microvolt = <3300000>;
> > + regulator-name = "vcc2v8_dvp";
> > + regulator-state-mem {
> > + regulator-off-in-suspend;
> > + };
> > + };
> > +
> > + dcdc_boost: BOOST {
> > + 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;
> > + };
> > + };
> > + };
> > +
> > + rk817_charger: charger {
> > + monitored-battery = <&battery>;
> > + rockchip,resistor-sense-micro-ohms = <10000>;
> > + rockchip,sleep-enter-current-microamp = <150000>;
> > + rockchip,sleep-filter-current-microamp = <100000>;
> > + };
> > +
> > + };
> > +
> > + vdd_cpu: regulator at 1c {
> > + compatible = "tcs,tcs4525";
> > + reg = <0x1c>;
> > + fcs,suspend-voltage-selector = <1>;
> > + regulator-always-on;
> > + regulator-boot-on;
> > + regulator-min-microvolt = <712500>;
> > + regulator-max-microvolt = <1390000>;
> > + regulator-name = "vdd_cpu";
> > + regulator-ramp-delay = <2300>;
> > + vin-supply = <&vcc_sys>;
> > + regulator-state-mem {
> > + regulator-off-in-suspend;
> > + };
> > + };
> > +};
> > +
> > +&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 {
> > + audio-amplifier {
> > + spk_amp_enable_h: spk-amp-enable-h {
> > + rockchip,pins =
> > + <4 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
> > + };
> > + };
> > +
> > + gpio-control {
> > + btn_pins_ctrl: btn-pins-ctrl {
> > + rockchip,pins =
> > + <3 RK_PC6 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <3 RK_PC7 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <3 RK_PD0 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <3 RK_PD1 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <3 RK_PD2 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <3 RK_PD3 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <3 RK_PD4 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <3 RK_PD6 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <3 RK_PD7 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <4 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <4 RK_PA1 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <4 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <4 RK_PA4 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <4 RK_PA7 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <4 RK_PB0 RK_FUNC_GPIO &pcfg_pull_up>;
> > + };
> > +
> > + btn_pins_vol: btn-pins-vol {
> > + rockchip,pins =
> > + <4 RK_PA3 RK_FUNC_GPIO &pcfg_pull_up>,
> > + <4 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
> > + };
> > + };
> > +
> > + gpio-lcd {
> > + lcd_rst: lcd-rst {
> > + rockchip,pins =
> > + <0 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
> > + };
> > + };
> > +
> > + gpio-leds {
> > + led_pins: led-pins {
> > + rockchip,pins =
> > + <4 RK_PB4 RK_FUNC_GPIO &pcfg_pull_none>,
> > + <4 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>,
> > + <4 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>;
> > + };
> > + };
> > +
> > + hp-detect {
> > + hp_det: hp-det {
> > + rockchip,pins =
> > + <4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_up>;
> > + };
> > + };
> > +
> > + 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 =
> > + <0 RK_PC0 RK_FUNC_GPIO &pcfg_pull_none>;
> > + };
> > + };
> > +
> > + usb {
> > + vcc5v0_host_en: vcc5v0-host-en {
> > + rockchip,pins =
> > + <4 RK_PC4 RK_FUNC_GPIO &pcfg_pull_up>;
> > + };
> > +
> > + vcc5v0_otg_en: vcc5v0-otg-en {
> > + rockchip,pins =
> > + <4 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;
> > + };
> > + };
> > +
> > + vcc-lcd {
> > + vcc_lcd_en: vcc-lcd-en {
> > + rockchip,pins =
> > + <0 RK_PC7 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 = <&vcca1v8_pmu>;
> > + vccio1-supply = <&vccio_acodec>;
> > + vccio3-supply = <&vccio_sd>;
> > + vccio4-supply = <&vcca1v8_pmu>;
> > + vccio5-supply = <&vcc2v8_dvp>;
> > + vccio6-supply = <&vcc1v8_dvp>;
> > + vccio7-supply = <&vcc_3v3>;
> > +};
> > +
> > +&pwm4 {
> > + status = "okay";
> > +};
> > +
> > +&saradc {
> > + vref-supply = <&vcc_1v8>;
> > + status = "okay";
> > +};
> > +
> > +&sdhci {
> > + bus-width = <8>;
> > + mmc-hs200-1_8v;
> > + non-removable;
> > + pinctrl-0 = <&emmc_bus8>, <&emmc_clk>, <&emmc_cmd>,
> > + <&emmc_datastrobe>, <&emmc_rstnout>;
> > + pinctrl-names = "default";
> > + status = "okay";
> > +};
> > +
> > +&sdmmc0 {
> > + bus-width = <4>;
> > + cap-mmc-highspeed;
> > + cap-sd-highspeed;
> > + disable-wp;
> > + pinctrl-0 = <&sdmmc0_bus4>, <&sdmmc0_clk>, <&sdmmc0_cmd>,
> > + <&sdmmc0_det>;
> > + pinctrl-names = "default";
> > + sd-uhs-sdr104;
> > + vqmmc-supply = <&vccio_sd>;
> > + status = "okay";
> > +};
> > +
> > +&sdmmc1 {
> > + bus-width = <4>;
> > + cap-sd-highspeed;
> > + cap-sdio-irq;
> > + keep-power-in-suspend;
> > + mmc-pwrseq = <&sdio_pwrseq>;
> > + non-removable;
> > + pinctrl-0 = <&sdmmc1_bus4>, <&sdmmc1_cmd>, <&sdmmc1_clk>;
> > + pinctrl-names = "default";
> > + vmmc-supply = <&vcc_wifi>;
> > + status = "okay";
> > +};
> > +
> > +&sdmmc2 {
> > + bus-width = <4>;
> > + cap-mmc-highspeed;
> > + cap-sd-highspeed;
> > + disable-wp;
> > + pinctrl-0 = <&sdmmc2m1_bus4>, <&sdmmc2m1_cmd>, <&sdmmc2m1_clk>,
> > + <&sdmmc2m1_det>;
> > + pinctrl-names = "default";
> > + sd-uhs-sdr104;
> > + vqmmc-supply = <&vcc2v8_dvp>;
> > + status = "okay";
> > +};
> > +
> > +&tsadc {
> > + rockchip,hw-tshut-mode = <1>;
> > + rockchip,hw-tshut-polarity = <0>;
> > + status = "okay";
> > +};
> > +
> > +&uart1 {
> > + pinctrl-0 = <&uart1m0_xfer>, <&uart1m0_ctsn>, <&uart1m0_rtsn>;
> > + pinctrl-names = "default";
> > + uart-has-rtscts;
> > + status = "okay";
> > +
> > + bluetooth {
> > + compatible = "realtek,rtl8821cs-bt", "realtek,rtl8723bs-bt";
> > + device-wake-gpios = <&gpio0 RK_PB6 GPIO_ACTIVE_HIGH>;
> > + enable-gpios = <&gpio0 RK_PC1 GPIO_ACTIVE_HIGH>;
> > + host-wake-gpios = <&gpio0 RK_PB5 GPIO_ACTIVE_HIGH>;
> > + };
> > +};
> > +
> > +&uart2 {
> > + status = "okay";
> > +};
> > +
> > +&usb_host0_xhci {
> > + phys = <&usb2phy0_otg>;
> > + phy-names = "usb2-phy";
> > + status = "okay";
> > +};
> > +
> > +&usb_host1_xhci {
> > + status = "okay";
> > +};
> > +
> > +&usb2phy0 {
> > + status = "okay";
> > +};
> > +
> > +&usb2phy0_otg {
> > + status = "okay";
> > +};
> > +
> > +&usb2phy0_host {
> > + phy-supply = <&vcc5v0_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>;
> > + };
> > +};
> > +
> > +&vp1 {
> > + vp1_out_dsi0: endpoint at ROCKCHIP_VOP2_EP_MIPI0 {
> > + reg = <ROCKCHIP_VOP2_EP_MIPI0>;
> > + remote-endpoint = <&dsi0_in_vp1>;
> > + };
> > +};
> > diff --git a/arch/arm/mach-rockchip/rk3568/Kconfig b/arch/arm/mach-rockchip/rk3568/Kconfig
> > index baa51349f4..a97da8ae55 100644
> > --- a/arch/arm/mach-rockchip/rk3568/Kconfig
> > +++ b/arch/arm/mach-rockchip/rk3568/Kconfig
> > @@ -22,6 +22,11 @@ config TARGET_ODROID_M1_RK3568
> > help
> > Hardkernel ODROID-M1 single board computer with a RK3568B2 SoC.
> > +config TARGET_POWKIDDY_X55_RK3566
> > + bool "Powkiddy X55"
> > + help
> > + Powkiddy X55 handheld gaming console with an RK3566 SoC.
> > +
> > config TARGET_QUARTZ64_RK3566
> > bool "Pine64 Quartz64"
> > help
> > @@ -45,5 +50,6 @@ source "board/rockchip/evb_rk3568/Kconfig"
> > source "board/anbernic/rgxx3_rk3566/Kconfig"
> > source "board/hardkernel/odroid_m1/Kconfig"
> > source "board/pine64/quartz64_rk3566/Kconfig"
> > +source "board/powkiddy/x55/Kconfig"
> > endif
> > diff --git a/board/powkiddy/x55/Kconfig b/board/powkiddy/x55/Kconfig
> > new file mode 100644
> > index 0000000000..a7b3ed4d0d
> > --- /dev/null
> > +++ b/board/powkiddy/x55/Kconfig
> > @@ -0,0 +1,15 @@
> > +if TARGET_POWKIDDY_X55_RK3566
> > +
> > +config SYS_BOARD
> > + default "x55"
> > +
> > +config SYS_VENDOR
> > + default "powkiddy"
> > +
> > +config SYS_CONFIG_NAME
> > + default "powkiddy-x55-rk3566"
> > +
> > +config BOARD_SPECIFIC_OPTIONS
> > + def_bool y
> > +
> > +endif
> > diff --git a/board/powkiddy/x55/MAINTAINERS b/board/powkiddy/x55/MAINTAINERS
> > new file mode 100644
> > index 0000000000..9ed48f408e
> > --- /dev/null
> > +++ b/board/powkiddy/x55/MAINTAINERS
> > @@ -0,0 +1,9 @@
> > +X55
> > +M: Chris Morgan <macromorgan at hotmail.com>
> > +S: Maintained
> > +F: board/powkiddy/x55
> > +F: include/configs/powkiddy-x55-rk3566.h
> > +F: configs/powkiddy-x55-rk3566_defconfig
> > +F: arch/arm/dts/rk3566-powkiddy-x55.dts
> > +F: arch/arm/dts/rk3566-powkiddy-x55-u-boot.dtsi
> > +F: doc/board/powkiddy/x55.rst
> > diff --git a/board/powkiddy/x55/Makefile b/board/powkiddy/x55/Makefile
> > new file mode 100644
> > index 0000000000..55c8c16aa1
> > --- /dev/null
> > +++ b/board/powkiddy/x55/Makefile
> > @@ -0,0 +1,6 @@
> > +# SPDX-License-Identifier: GPL-2.0+
> > +#
> > +# Copyright (c) 2023 Chris Morgan <macromorgan at hotmail.com>
> > +#
> > +
> > +obj-y += x55.o
> > diff --git a/board/powkiddy/x55/x55.c b/board/powkiddy/x55/x55.c
> > new file mode 100644
> > index 0000000000..8d98baa24f
> > --- /dev/null
> > +++ b/board/powkiddy/x55/x55.c
> > @@ -0,0 +1,42 @@
> > +// SPDX-License-Identifier: GPL-2.0+
> > +/*
> > + * Copyright (c) 2023 Chris Morgan <macromorgan at hotmail.com>
> > + */
> > +
> > +#include <asm/arch-rockchip/boot_mode.h>
> > +#include <asm/io.h>
> > +
> > +#define GPIO4_BASE 0xfe770000
> > +#define GPIO_SWPORT_DR_L 0x0000
> > +#define GPIO_SWPORT_DDR_L 0x0008
> > +#define GPIO_B4 BIT(12)
> > +#define GPIO_B5 BIT(13)
> > +#define GPIO_B6 BIT(14)
> > +
> > +#define GPIO_WRITEMASK(bits) ((bits) << 16)
> > +
> > +/*
> > + * Start LED very early so user knows device is on. Set color
> > + * to red.
> > + */
> > +void spl_board_init(void)
> > +{
> > + setup_boot_mode();
> > +
> > + /* Set GPIO4_B4, GPIO4_B5, and GPIO4_B6 to output. */
> > + writel(GPIO_WRITEMASK(GPIO_B6 | GPIO_B5 | GPIO_B4) | \
> > + (GPIO_B6 | GPIO_B5 | GPIO_B4),
> > + (GPIO4_BASE + GPIO_SWPORT_DDR_L));
> > + /* Set GPIO4_B5 and GPIO4_B6 to 0 and GPIO4_B4 to 1. */
> > + writel(GPIO_WRITEMASK(GPIO_B6 | GPIO_B5 | GPIO_B4) | GPIO_B4,
> > + (GPIO4_BASE + GPIO_SWPORT_DR_L));
> > +}
> > +
> > +int rk_board_late_init(void)
> > +{
> > + /* Turn off red LED and turn on orange LED. */
> > + writel(GPIO_WRITEMASK(GPIO_B6 | GPIO_B5 | GPIO_B4) | GPIO_B6,
> > + (GPIO4_BASE + GPIO_SWPORT_DR_L));
> > +
> > + return 0;
> > +}
> > diff --git a/configs/powkiddy-x55-rk3566_defconfig b/configs/powkiddy-x55-rk3566_defconfig
> > new file mode 100644
> > index 0000000000..f9a513f97c
> > --- /dev/null
> > +++ b/configs/powkiddy-x55-rk3566_defconfig
> > @@ -0,0 +1,92 @@
> > +CONFIG_ARM=y
> > +CONFIG_SKIP_LOWLEVEL_INIT=y
> > +CONFIG_COUNTER_FREQUENCY=24000000
> > +CONFIG_ARCH_ROCKCHIP=y
> > +CONFIG_TEXT_BASE=0x00a00000
> > +CONFIG_SPL_GPIO=y
> > +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-powkiddy-x55"
> > +CONFIG_ROCKCHIP_RK3568=y
> > +CONFIG_SPL_ROCKCHIP_BACK_TO_BROM=y
> > +CONFIG_SPL_ROCKCHIP_COMMON_BOARD=y
> > +CONFIG_ROCKCHIP_RK8XX_DISABLE_BOOT_ON_POWERON=y
> > +CONFIG_SPL_MMC=y
> > +CONFIG_SPL_SERIAL=y
> > +CONFIG_SPL_STACK_R_ADDR=0x600000
> > +CONFIG_TARGET_POWKIDDY_X55_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_FIT_SIGNATURE=y
> > +CONFIG_SPL_LOAD_FIT=y
> > +CONFIG_LEGACY_IMAGE_FORMAT=y
> > +CONFIG_OF_STDOUT_VIA_ALIAS=y
> > +CONFIG_DEFAULT_FDT_FILE="rockchip/rk3566-powkiddy-x55.dtb"
> > +# CONFIG_DISPLAY_CPUINFO is not set
> > +CONFIG_DISPLAY_BOARDINFO_LATE=y
> > +CONFIG_SPL_MAX_SIZE=0x40000
> > +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_ADC=y
> > +CONFIG_SPL_POWER=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_OF_SPL_REMOVE_PROPS="clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents"
> > +CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
> > +# CONFIG_NET is not set
> > +CONFIG_SPL_DM_SEQ_ALIAS=y
> > +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_SPL_PINCTRL=y
> > +CONFIG_DM_PMIC=y
> > +CONFIG_DM_PMIC_FAN53555=y
> > +CONFIG_PMIC_RK8XX=y
> > +CONFIG_SPL_DM_REGULATOR=y
> > +CONFIG_SPL_DM_REGULATOR_FIXED=y
> > +CONFIG_REGULATOR_RK8XX=y
> > +CONFIG_PWM_ROCKCHIP=y
> > +CONFIG_SPL_RAM=y
> > +# CONFIG_RAM_ROCKCHIP_DEBUG is not set
> > +CONFIG_DM_RNG=y
> > +CONFIG_RNG_ROCKCHIP=y
> > +# CONFIG_RNG_SMCCC_TRNG is not set
> > +CONFIG_BAUDRATE=1500000
> > +CONFIG_DEBUG_UART_SHIFT=2
> > +CONFIG_SYS_NS16550_MEM32=y
> > +CONFIG_SYSRESET=y
> > +CONFIG_REGEX=y
> > +# CONFIG_RSA is not set
> > +CONFIG_ERRNO_STR=y
> > +# CONFIG_EFI_LOADER is not set
> > diff --git a/doc/board/index.rst b/doc/board/index.rst
> > index 531e547e7e..dd4bce9981 100644
> > --- a/doc/board/index.rst
> > +++ b/doc/board/index.rst
> > @@ -36,6 +36,7 @@ Board-specific doc
> > nxp/index
> > openpiton/index
> > phytec/index
> > + powkiddy/index
> > purism/index
> > qualcomm/index
> > renesas/index
> > diff --git a/doc/board/powkiddy/index.rst b/doc/board/powkiddy/index.rst
> > new file mode 100644
> > index 0000000000..b0115a73d4
> > --- /dev/null
> > +++ b/doc/board/powkiddy/index.rst
> > @@ -0,0 +1,9 @@
> > +.. SPDX-License-Identifier: GPL-2.0+
> > +
> > +Powkiddy
> > +========
> > +
> > +.. toctree::
> > + :maxdepth: 2
> > +
> > + x55.rst
> > diff --git a/doc/board/powkiddy/x55.rst b/doc/board/powkiddy/x55.rst
> > new file mode 100644
> > index 0000000000..cd7456883b
> > --- /dev/null
> > +++ b/doc/board/powkiddy/x55.rst
> > @@ -0,0 +1,25 @@
> > +.. SPDX-License-Identifier: GPL-2.0+
> > +
> > +U-Boot for Powkiddy X55 Handheld Gaming Console
> > +===============================================
> > +
> > +This allows U-Boot to boot the Powkiddy X55 handheld gaming console.
> > +The X55 is very similar to the other existing Powkiddy RK3566 based
> > +devices, except that ADC channels 0-3 are used for the ADC joysticks.
> > +As a result the same auto detection functionality cannot be used on
> > +this device as the others.
> > +
> > +The indicator LED will change color based on the boot stage. Red means
> > +the device is powered on but has yet to start U-Boot, amber means the
> > +device has started U-Boot and is waiting to boot Linux, and when Linux
> > +has taken over the LED should change to green (or however it has been
> > +configured by the user).
> > +
> > +In the event the device needs to enter Rockchip download mode, a user
> > +can, starting with the power off, hold the left joystick all the way
> > +to the left and then power on the device. At this point the USB-C port
> > +marked DC/OTG should be set to peripheral mode and allow a user to
> > +manipulate the device with the rkdeveloptool tool.
> > +
> > +See :doc:`../rockchip/devicetree/rockchip` for building and flashing
> > +instructions.
> > diff --git a/doc/board/rockchip/rockchip.rst b/doc/board/rockchip/rockchip.rst
> > index 18d0b6f089..4e290cecdc 100644
> > --- a/doc/board/rockchip/rockchip.rst
> > +++ b/doc/board/rockchip/rockchip.rst
> > @@ -98,6 +98,7 @@ List of mainline supported Rockchip boards:
> > - Pine64 SOQuartz on Blade (soquartz-blade-rk3566)
> > - Pine64 SOQuartz on CM4-IO (soquartz-cm4-rk3566)
> > - Pine64 SOQuartz on Model A (soquartz-model-a-rk3566)
> > + - Powkiddy X55 (powkiddy-x55-rk3566)
> > - Radxa CM3 IO Board (radxa-cm3-io-rk3566)
> > * rk3568
> > diff --git a/include/configs/powkiddy-x55-rk3566.h b/include/configs/powkiddy-x55-rk3566.h
> > new file mode 100644
> > index 0000000000..a25b6de455
> > --- /dev/null
> > +++ b/include/configs/powkiddy-x55-rk3566.h
> > @@ -0,0 +1,14 @@
> > +/* SPDX-License-Identifier: GPL-2.0+ */
> > +
> > +#ifndef __POWKIDDY_X55_RK3566_H
> > +#define __POWKIDDY_X55_RK3566_H
> > +
> > +#include <configs/rk3568_common.h>
> > +
> > +#define ROCKCHIP_DEVICE_SETTINGS \
> > + "stdout=serial,vidconsole\0" \
> > + "stderr=serial,vidconsole\0"
> > +
> > +#define RK_DNL_ADC_CHAN 0
> > +
> > +#endif
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