[PATCH v2 1/2] arm64: dts: rockchip: add Vicharak Axon board
Krzysztof Kozlowski
krzk at kernel.org
Sun Jun 7 01:45:40 PDT 2026
On Mon, Jun 01, 2026 at 06:55:28PM +0530, Hrushiraj Gandhi wrote:
> Add initial support for the Vicharak Axon single-board computer based on
> the Rockchip RK3588 SoC.
>
> The board supports:
>
> - eMMC storage
> - microSD card
> - Gigabit Ethernet
> - HDMI output (dual HDMI)
> - HDMI input
> - USB 2.0 host ports
> - PCIe 2.0 slots
> - PCIe 3.0 x4 slot
> - SATA
> - RTC
> - Status LEDs
>
> The board uses an RK806 PMIC and provides the regulators required by
> the RK3588 SoC.
>
> Signed-off-by: Hrushiraj Gandhi <hrushirajg23 at gmail.com>
> ---
> arch/arm64/boot/dts/rockchip/Makefile | 1 +
> .../dts/rockchip/rk3588-vicharak-axon.dts | 1038 +++++++++++++++++
> 2 files changed, 1039 insertions(+)
> create mode 100644 arch/arm64/boot/dts/rockchip/rk3588-vicharak-axon.dts
>
> diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
> index cb55c6b70d0e..fcb115b02eff 100644
> --- a/arch/arm64/boot/dts/rockchip/Makefile
> +++ b/arch/arm64/boot/dts/rockchip/Makefile
> @@ -179,6 +179,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-rock-4d.dtb
> dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3582-radxa-e52c.dtb
> dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-armsom-sige7.dtb
> dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-armsom-w3.dtb
> +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-vicharak-axon.dtb
> dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-coolpi-cm5-evb.dtb
> dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-coolpi-cm5-genbook.dtb
> dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-edgeble-neu6a-io.dtb
> diff --git a/arch/arm64/boot/dts/rockchip/rk3588-vicharak-axon.dts b/arch/arm64/boot/dts/rockchip/rk3588-vicharak-axon.dts
> new file mode 100644
> index 000000000000..fecd13a52e88
> --- /dev/null
> +++ b/arch/arm64/boot/dts/rockchip/rk3588-vicharak-axon.dts
> @@ -0,0 +1,1038 @@
> +// 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 <dt-bindings/usb/pd.h>
> +#include "rk3588.dtsi"
> +
> +/ {
> + model = "Vicharak Axon";
> + compatible = "vicharak,axon", "rockchip,rk3588";
> +
> + aliases {
> + mmc0 = &sdmmc;
> + mmc1 = &sdhci;
> + mmc2 = &sdio;
> + serial2 = &uart2;
> + };
> +
> + chosen {
> + stdout-path = "serial2:1500000n8";
> + };
> +
> + hdmi0-con {
> + compatible = "hdmi-connector";
> + type = "a";
> +
> + port {
> + hdmi0_con_in: endpoint {
> + remote-endpoint = <&hdmi0_out_con>;
> + };
> + };
> + };
> +
> + hdmi1-con {
> + compatible = "hdmi-connector";
> + type = "a";
> +
> + port {
> + hdmi1_con_in: endpoint {
> + remote-endpoint = <&hdmi1_out_con>;
> + };
> + };
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> + status = "okay";
Which DTSI disabled it?
> +
> + power_led: power-led {
> + color = <LED_COLOR_ID_GREEN>;
> + function = LED_FUNCTION_STATUS;
> + gpios = <&pca9554 0 GPIO_ACTIVE_HIGH>;
> + linux,default-trigger = "heartbeat";
> + };
> +
> + status_led: status-led {
> + color = <LED_COLOR_ID_RED>;
> + function = LED_FUNCTION_STATUS;
> + gpios = <&pca9554 1 GPIO_ACTIVE_HIGH>;
> + linux,default-trigger = "none";
> + };
> + };
> +
> + pcie20_avdd0v85: regulator-pcie20-avdd0v85 {
Unused, drop. Don't add useless/non-controllable supplies without
consumers. They bring no benefits, except more review, slower kernel,
more code to maintain.
> + compatible = "regulator-fixed";
> + regulator-name = "pcie20_avdd0v85";
> + regulator-boot-on;
> + regulator-always-on;
> + regulator-min-microvolt = <850000>;
> + regulator-max-microvolt = <850000>;
> + vin-supply = <&vdd_0v85_s0>;
> + };
> +
> + pcie20_avdd1v8: regulator-pcie20-avdd1v8 {
No users
> + compatible = "regulator-fixed";
> + regulator-name = "pcie20_avdd1v8";
> + regulator-boot-on;
> + regulator-always-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + vin-supply = <&avcc_1v8_s0>;
> + };
> +
> + pcie30_avdd0v75: regulator-pcie30-avdd0v75 {
Is any of this real?
> + compatible = "regulator-fixed";
> + regulator-name = "pcie30_avdd0v75";
> + regulator-boot-on;
> + regulator-always-on;
> + regulator-min-microvolt = <750000>;
> + regulator-max-microvolt = <750000>;
> + vin-supply = <&vdd_0v75_s0>;
> + };
> +
> + pcie30_avdd1v8: regulator-pcie30-avdd1v8 {
> + compatible = "regulator-fixed";
> + regulator-name = "pcie30_avdd1v8";
> + regulator-boot-on;
> + regulator-always-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + vin-supply = <&avcc_1v8_s0>;
> + };
> +
> + sata_vcc_5v0: regulator-sata-vcc-5v0 {
> + compatible = "regulator-fixed";
> + regulator-name = "sata_vcc_5v0";
> + startup-delay-us = <5000>;
> + regulator-boot-on;
> + regulator-always-on;
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + vin-supply = <&vcc12v_dcin>;
> + };
> +
> + sdio_pwrseq: sdio-pwrseq {
> + compatible = "mmc-pwrseq-simple";
> + clocks = <&hym8563>;
> + clock-names = "ext_clock";
> + pinctrl-names = "default";
> + pinctrl-0 = <&sdio_reset_wifi>;
> + reset-gpios = <&gpio4 RK_PC6 GPIO_ACTIVE_LOW>;
> + status = "okay";
> + };
> +
> + vcc0_4v0: vcc4v0_sys: regulator-vcc0-4v0 {
Odd sorting. And still not used!
> + compatible = "regulator-fixed";
> + regulator-name = "vcc0_4v0";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <4000000>;
> + regulator-max-microvolt = <4000000>;
> + vin-supply = <&vcc12v_dcin>;
> + };
> +
> + vcc12v_dcin: regulator-vcc12v-dcin {
Also not used
> + compatible = "regulator-fixed";
> + regulator-name = "vcc12v_dcin";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <12000000>;
> + regulator-max-microvolt = <12000000>;
> + };
> +
> + vcc3v3_io_expander: regulator-vcc3v3-io-expander {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc3v3_io_expander";
> + regulator-boot-on;
> + regulator-always-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + };
> +
> + vcc3v3_pcie20_sata30: regulator-vcc3v3-pcie20-sata30 {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc3v3_pcie20_sata30";
> + regulator-boot-on;
> + regulator-always-on;
> + enable-active-high;
> + gpios = <&gpio0 RK_PA0 GPIO_ACTIVE_HIGH>;
> + regulator-max-microvolt = <3300000>;
> + regulator-min-microvolt = <3300000>;
> + vin-supply = <&vcc12v_dcin>;
> + };
...
> +
> +&i2c0 {
> + pinctrl-0 = <&i2c0m2_xfer>;
> + pinctrl-names = "default";
> + status = "okay";
> +
> + vdd_cpu_big0_s0: regulator at 42 {
> + compatible = "rockchip,rk8602";
> + fcs,suspend-voltage-selector = <1>;
> + reg = <0x42>;
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-max-microvolt = <1050000>;
> + regulator-min-microvolt = <550000>;
> + regulator-name = "vdd_cpu_big0_s0";
> + regulator-ramp-delay = <2300>;
> + vin-supply = <&vcc5v0_sys>;
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vdd_cpu_big1_s0: regulator at 43 {
> + compatible = "rockchip,rk8603", "rockchip,rk8602";
> + fcs,suspend-voltage-selector = <1>;
> + reg = <0x43>;
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-max-microvolt = <1050000>;
> + regulator-min-microvolt = <550000>;
> + regulator-name = "vdd_cpu_big1_s0";
> + regulator-ramp-delay = <2300>;
> + vin-supply = <&vcc5v0_sys>;
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + hym8563: rtc at 51 {
> + compatible = "haoyu,hym8563";
> + reg = <0x51>;
> + #clock-cells = <0>;
> + clock-output-names = "hym8563";
> + interrupt-parent = <&gpio0>;
> + interrupts = <RK_PB0 IRQ_TYPE_LEVEL_LOW>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&rtc_int>;
> + wakeup-source;
> + status = "okay";
Why is this enabled but regulator above is not? What logic drivers this?
> + };
> +};
> +
> +&i2c1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&i2c1m2_xfer>;
> + status = "okay";
> +
> + vdd_npu_s0: regulator at 42 {
> + compatible = "rockchip,rk8602";
> + reg = <0x42>;
> + fcs,suspend-voltage-selector = <1>;
> + regulator-name = "vdd_npu_s0";
> + regulator-boot-on;
> + regulator-enable-ramp-delay = <500>;
> + regulator-min-microvolt = <550000>;
> + regulator-max-microvolt = <950000>;
> + regulator-ramp-delay = <2300>;
> + vin-supply = <&vcc5v0_sys>;
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +};
> +
> +&i2c6 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&i2c6m0_xfer>;
> + status = "okay";
> +
> + pca9554: gpio at 24 {
> + compatible = "nxp,pca9554";
> + #gpio-cells = <2>;
> + gpio-controller;
> + reg = <0x24>;
> + vcc-supply = <&vcc3v3_io_expander>;
> + status = "okay";
Who disabled it?
Best regards,
Krzysztof
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