[PATCH 2/2] arm64: dts: rockchip: Add rk3576 evb2 board
Alexey Charkov
alchark at gmail.com
Sat Jan 3 23:36:28 PST 2026
Hi Chaoyi,
On Sun, Jan 4, 2026 at 6:38 AM Chaoyi Chen <kernel at airkyi.com> wrote:
>
> From: Chaoyi Chen <chaoyi.chen at rock-chips.com>
>
> General features for rk3576 evb2 board:
> - Rockchip RK3576
> - LPDDR4/4X
> - eMMC5.1
> - RK806-2x2pcs + DiscretePower
> - 1x HDMI2.1 TX / HDMI2.0 RX
> - 1x full size DP1.4 TX (Only 2 Lanes)
> - 2x 10/100/1000M Ethernet
> - 5x SATA3.0 7Pin Slot
> - 2x USB3.2 Gen1 Host
> - 3x USB2.0 Host
> - WIFI/BT
Would you like to highlight which features are tested/enabled with
this version of the DTS? That might help set the expectations right
for whoever tries it out.
> Signed-off-by: Chaoyi Chen <chaoyi.chen at rock-chips.com>
> ---
> arch/arm64/boot/dts/rockchip/Makefile | 1 +
> .../boot/dts/rockchip/rk3576-evb2-v10.dts | 941 ++++++++++++++++++
> 2 files changed, 942 insertions(+)
> create mode 100644 arch/arm64/boot/dts/rockchip/rk3576-evb2-v10.dts
>
> diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
> index c7617e06e1c1..cff95657d406 100644
> --- a/arch/arm64/boot/dts/rockchip/Makefile
> +++ b/arch/arm64/boot/dts/rockchip/Makefile
> @@ -153,6 +153,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-wolfvision-pf5-io-expander.dtbo
> dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-armsom-sige5.dtb
> dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-armsom-sige5-v1.2-wifibt.dtbo
> dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-evb1-v10.dtb
> +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-evb2-v10.dtb
> dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-luckfox-omni3576.dtb
> dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-nanopi-m5.dtb
> dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-roc-pc.dtb
> diff --git a/arch/arm64/boot/dts/rockchip/rk3576-evb2-v10.dts b/arch/arm64/boot/dts/rockchip/rk3576-evb2-v10.dts
> new file mode 100644
> index 000000000000..4f7d9f2027ca
> --- /dev/null
> +++ b/arch/arm64/boot/dts/rockchip/rk3576-evb2-v10.dts
> @@ -0,0 +1,941 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2025 Rockchip Electronics Co., Ltd.
> + *
> + */
> +
> +/dts-v1/;
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/pinctrl/rockchip.h>
> +#include <dt-bindings/soc/rockchip,vop2.h>
> +#include "rk3576.dtsi"
> +
> +/ {
> + model = "Rockchip RK3576 EVB2 V10 Board";
> + compatible = "rockchip,rk3576-evb2-v10", "rockchip,rk3576";
> +
> + aliases {
> + ethernet0 = &gmac0;
> + ethernet1 = &gmac1;
> + };
> +
> + chosen: chosen {
> + stdout-path = "serial0:1500000n8";
> + };
> +
> + adc_keys: adc-keys {
> + compatible = "adc-keys";
> + io-channels = <&saradc 1>;
> + io-channel-names = "buttons";
> + keyup-threshold-microvolt = <1800000>;
> + poll-interval = <100>;
> +
> + button-back {
> + label = "back";
> + linux,code = <KEY_BACK>;
> + press-threshold-microvolt = <1235000>;
> + };
> +
> + button-menu {
> + label = "menu";
> + linux,code = <KEY_MENU>;
> + press-threshold-microvolt = <890000>;
> + };
> +
> + button-vol-down {
> + label = "volume down";
> + linux,code = <KEY_VOLUMEDOWN>;
> + press-threshold-microvolt = <417000>;
> + };
> +
> + button-vol-up {
> + label = "volume up";
> + linux,code = <KEY_VOLUMEUP>;
> + press-threshold-microvolt = <17000>;
> + };
> + };
> +
> + hdmi-con {
> + compatible = "hdmi-connector";
> + type = "a";
> +
> + port {
> + hdmi_con_in: endpoint {
> + remote-endpoint = <&hdmi_out_con>;
> + };
> + };
> + };
> +
> + leds: leds {
> + compatible = "gpio-leds";
> +
> + work_led: led-0 {
> + gpios = <&gpio0 RK_PB4 GPIO_ACTIVE_HIGH>;
> + linux,default-trigger = "heartbeat";
> + };
> + };
> +
> + sdio_pwrseq: sdio-pwrseq {
> + compatible = "mmc-pwrseq-simple";
> + pinctrl-names = "default";
> + pinctrl-0 = <&wifi_pwren>;
> +
> + /*
> + * On the module itself this is one of these (depending
> + * on the actual card populated):
> + * - SDIO_RESET_L_WL_REG_ON
> + * - PDN (power down when low)
> + */
> + post-power-on-delay-ms = <200>;
> + reset-gpios = <&gpio1 RK_PC6 GPIO_ACTIVE_LOW>;
> + };
> +
> + vbus5v0_typec: regulator-vbus5v0-typec {
> + compatible = "regulator-fixed";
> + regulator-name = "vbus5v0_typec";
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + enable-active-high;
> + gpio = <&gpio0 RK_PD1 GPIO_ACTIVE_HIGH>;
> + vin-supply = <&vcc5v0_device>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&usb_otg0_pwren>;
> + };
> +
> + vcc12v_dcin: regulator-vcc12v-dcin {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc12v_dcin";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <12000000>;
> + regulator-max-microvolt = <12000000>;
> + };
> +
> + vcc1v2_ufs_vccq_s0: regulator-vcc1v2-ufs-vccq-s0 {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc1v2_ufs_vccq_s0";
> + regulator-boot-on;
> + regulator-always-on;
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + vin-supply = <&vcc_sys>;
> + };
> +
> + vcc1v8_ufs_vccq2_s0: regulator-vcc1v8-ufs-vccq2-s0 {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc1v8_ufs_vccq2_s0";
> + regulator-boot-on;
> + regulator-always-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + vin-supply = <&vcc_1v8_s3>;
> + };
> +
> + vcc3v3_lcd_n: regulator-vcc3v3-lcd0-n {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc3v3_lcd0_n";
> + regulator-boot-on;
> + enable-active-high;
> + gpio = <&gpio0 RK_PC6 GPIO_ACTIVE_HIGH>;
> + vin-supply = <&vcc_3v3_s0>;
> + };
> +
> + vcc3v3_pcie1: regulator-vcc3v3-pcie1 {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc3v3_pcie1";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + enable-active-high;
> + gpios = <&gpio0 RK_PA2 GPIO_ACTIVE_HIGH>;
> + startup-delay-us = <5000>;
> + vin-supply = <&vcc12v_dcin>;
> + };
> +
> + vcc3v3_rtc_s5: regulator-vcc3v3-rtc-s5 {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc3v3_rtc_s5";
> + regulator-boot-on;
> + regulator-always-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + vin-supply = <&vcc_sys>;
> + };
> +
> + vcc5v0_device: regulator-vcc5v0-device {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc5v0_device";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + vin-supply = <&vcc12v_dcin>;
> + };
> +
> + vcc5v0_host: regulator-vcc5v0-host {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc5v0_host";
> + regulator-boot-on;
> + regulator-always-on;
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + enable-active-high;
> + gpio = <&gpio0 RK_PC3 GPIO_ACTIVE_HIGH>;
> + vin-supply = <&vcc5v0_device>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&usb_host_pwren>;
> + };
> +
> + vcc_sys: regulator-vcc5v0-sys {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc_sys";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + vin-supply = <&vcc12v_dcin>;
> + };
> +
> + vcc_1v1_nldo_s3: regulator-vcc-1v1-nldo-s3 {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc_1v1_nldo_s3";
> + regulator-boot-on;
> + regulator-always-on;
The name says "S3", so isn't it supposed to be able to go off in S5?
Then perhaps only "regulator-boot-on" is needed, but not
"regulator-always-on"?
> + regulator-min-microvolt = <1100000>;
> + regulator-max-microvolt = <1100000>;
> + vin-supply = <&vcc_sys>;
> + };
> +
> + vcc_1v8_s0: regulator-vcc-1v8-s0 {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc_1v8_s0";
> + regulator-boot-on;
> + regulator-always-on;
Ditto
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + vin-supply = <&vcc_1v8_s3>;
> + };
> +
> + vcc_2v0_pldo_s3: regulator-vcc-2v0-pldo-s3 {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc_2v0_pldo_s3";
> + regulator-boot-on;
> + regulator-always-on;
Ditto
> + regulator-min-microvolt = <2000000>;
> + regulator-max-microvolt = <2000000>;
> + vin-supply = <&vcc_sys>;
> + };
> +
> + vcc_3v3_s0: regulator-vcc-3v3-s0 {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc_3v3_s0";
> + regulator-boot-on;
> + regulator-always-on;
Ditto
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + vin-supply = <&vcc_3v3_s3>;
> + };
> +
> + vcc_ufs_s0: regulator-vcc-ufs-s0 {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc_ufs_s0";
> + regulator-boot-on;
> + regulator-always-on;
Ditto
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + vin-supply = <&vcc_sys>;
> + };
> +};
> +
> +&cpu_l0 {
> + cpu-supply = <&vdd_cpu_lit_s0>;
> +};
> +
> +&cpu_b0 {
> + cpu-supply = <&vdd_cpu_big_s0>;
> +};
Shall we list all of &cpu_l{0,1,2,3} and &cpu_b{0,1,2,3} here for completeness?
> +&combphy0_ps {
> + status = "okay";
> +};
> +
> +&combphy1_psu {
> + status = "okay";
> +};
> +
> +&gmac0 {
> + clock_in_out = "output";
> + phy-mode = "rgmii-rxid";
> + phy-handle = <&rgmii_phy0>;
> + pinctrl-names = "default";
> + pinctrl-0 = <ð0m1_miim
> + ð0m1_tx_bus2
> + ð0m1_rx_bus2
> + ð0m1_rgmii_clk
> + ð0m1_rgmii_bus>;
> + tx_delay = <0x1d>;
> + status = "okay";
> +};
> +
> +&gmac1 {
> + clock_in_out = "output";
> + phy-handle = <&rgmii_phy1>;
> + phy-mode = "rgmii-rxid";
> + pinctrl-names = "default";
> + pinctrl-0 = <ð1m0_miim
> + ð1m0_tx_bus2
> + ð1m0_rx_bus2
> + ð1m0_rgmii_clk
> + ð1m0_rgmii_bus>;
> + tx_delay = <0x1e>;
> + status = "okay";
> +};
> +
> +&gpu {
> + mali-supply = <&vdd_gpu_s0>;
> + status = "okay";
> +};
> +
> +&hdmi {
> + status = "okay";
> +};
> +
> +&hdmi_in {
> + hdmi_in_vp0: endpoint {
> + remote-endpoint = <&vp0_out_hdmi>;
> + };
> +};
> +
> +&hdmi_out {
> + hdmi_out_con: endpoint {
> + remote-endpoint = <&hdmi_con_in>;
> + };
> +};
Would you like to enable &hdmi_sound and &sai6 here, or is there a
reason not to?
> +&hdptxphy {
> + status = "okay";
> +};
> +
> +&i2c1 {
> + status = "okay";
> +
> + rk806: pmic at 23 {
> + compatible = "rockchip,rk806";
> + reg = <0x23>;
> + interrupt-parent = <&gpio0>;
> + interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pmic_pins>, <&rk806_dvs1_null>,
> + <&rk806_dvs2_null>, <&rk806_dvs3_null>;
> + system-power-controller;
> +
> + 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 = <&vcc_sys>;
> + vcc10-supply = <&vcc_sys>;
> + vcc11-supply = <&vcc_2v0_pldo_s3>;
> + vcc12-supply = <&vcc_sys>;
> + vcc13-supply = <&vcc_1v1_nldo_s3>;
> + vcc14-supply = <&vcc_1v1_nldo_s3>;
> + vcca-supply = <&vcc_sys>;
> +
> + rk806_dvs1_null: dvs1-null-pins {
> + pins = "gpio_pwrctrl1";
> + function = "pin_fun0";
> + };
> +
> + rk806_dvs2_null: dvs2-null-pins {
> + pins = "gpio_pwrctrl2";
> + function = "pin_fun0";
> + };
> +
> + rk806_dvs3_null: dvs3-null-pins {
> + pins = "gpio_pwrctrl3";
> + function = "pin_fun0";
> + };
> +
> + rk806_dvs1_slp: dvs1-slp-pins {
> + pins = "gpio_pwrctrl1";
> + function = "pin_fun1";
> + };
> +
> + rk806_dvs1_pwrdn: dvs1-pwrdn-pins {
> + pins = "gpio_pwrctrl1";
> + function = "pin_fun2";
> + };
> +
> + rk806_dvs1_rst: dvs1-rst-pins {
> + pins = "gpio_pwrctrl1";
> + function = "pin_fun3";
> + };
> +
> + rk806_dvs2_slp: dvs2-slp-pins {
> + pins = "gpio_pwrctrl2";
> + function = "pin_fun1";
> + };
> +
> + rk806_dvs2_pwrdn: dvs2-pwrdn-pins {
> + pins = "gpio_pwrctrl2";
> + function = "pin_fun2";
> + };
> +
> + rk806_dvs2_rst: dvs2-rst-pins {
> + pins = "gpio_pwrctrl2";
> + function = "pin_fun3";
> + };
> +
> + rk806_dvs2_dvs: dvs2-dvs-pins {
> + pins = "gpio_pwrctrl2";
> + function = "pin_fun4";
> + };
> +
> + rk806_dvs2_gpio: dvs2-gpio-pins {
> + pins = "gpio_pwrctrl2";
> + function = "pin_fun5";
> + };
> +
> + rk806_dvs3_slp: dvs3-slp-pins {
> + pins = "gpio_pwrctrl3";
> + function = "pin_fun1";
> + };
> +
> + rk806_dvs3_pwrdn: dvs3-pwrdn-pins {
> + pins = "gpio_pwrctrl3";
> + function = "pin_fun2";
> + };
> +
> + rk806_dvs3_rst: dvs3-rst-pins {
> + pins = "gpio_pwrctrl3";
> + function = "pin_fun3";
> + };
> +
> + rk806_dvs3_dvs: dvs3-dvs-pins {
> + pins = "gpio_pwrctrl3";
> + function = "pin_fun4";
> + };
> +
> + rk806_dvs3_gpio: dvs3-gpio-pins {
> + pins = "gpio_pwrctrl3";
> + function = "pin_fun5";
> + };
> +
> + regulators {
> + vdd_cpu_big_s0: dcdc-reg1 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <550000>;
> + regulator-max-microvolt = <950000>;
> + regulator-ramp-delay = <12500>;
> + regulator-name = "vdd_cpu_big_s0";
> + regulator-enable-ramp-delay = <400>;
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vdd_npu_s0: dcdc-reg2 {
> + regulator-boot-on;
> + regulator-min-microvolt = <550000>;
> + regulator-max-microvolt = <950000>;
> + regulator-ramp-delay = <12500>;
> + regulator-name = "vdd_npu_s0";
> + regulator-enable-ramp-delay = <400>;
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vdd_cpu_lit_s0: dcdc-reg3 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <550000>;
> + regulator-max-microvolt = <950000>;
> + regulator-ramp-delay = <12500>;
> + regulator-name = "vdd_cpu_lit_s0";
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + regulator-suspend-microvolt = <750000>;
> + };
> + };
> +
> + vcc_3v3_s3: dcdc-reg4 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcc_3v3_s3";
> +
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <3300000>;
> + };
> + };
> +
> + vdd_gpu_s0: dcdc-reg5 {
> + regulator-boot-on;
> + regulator-min-microvolt = <550000>;
> + regulator-max-microvolt = <900000>;
> + regulator-ramp-delay = <12500>;
> + regulator-name = "vdd_gpu_s0";
> + regulator-enable-ramp-delay = <400>;
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + regulator-suspend-microvolt = <850000>;
> + };
> + };
> +
> + vddq_ddr_s0: dcdc-reg6 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-name = "vddq_ddr_s0";
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vdd_logic_s0: dcdc-reg7 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <550000>;
> + regulator-max-microvolt = <800000>;
> + regulator-name = "vdd_logic_s0";
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vcc_1v8_s3: dcdc-reg8 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-name = "vcc_1v8_s3";
> +
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <1800000>;
> + };
> + };
> +
> + vdd2_ddr_s3: dcdc-reg9 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-name = "vdd2_ddr_s3";
> +
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + };
> + };
> +
> + vdd_ddr_s0: dcdc-reg10 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <550000>;
> + regulator-max-microvolt = <1200000>;
> + regulator-name = "vdd_ddr_s0";
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vcca_1v8_s0: pldo-reg1 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-name = "vcca_1v8_s0";
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vcca1v8_pldo2_s0: pldo-reg2 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-name = "vcca1v8_pldo2_s0";
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vdda_1v2_s0: pldo-reg3 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + regulator-name = "vdda_1v2_s0";
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vcca_3v3_s0: pldo-reg4 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vcca_3v3_s0";
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vccio_sd_s0: pldo-reg5 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "vccio_sd_s0";
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vcca1v8_pldo6_s3: pldo-reg6 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-name = "vcca1v8_pldo6_s3";
> +
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <1800000>;
> + };
> + };
> +
> + vdd_0v75_s3: nldo-reg1 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <550000>;
> + regulator-max-microvolt = <750000>;
> + regulator-name = "vdd_0v75_s3";
> +
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <750000>;
> + };
> + };
> +
> + vdda_ddr_pll_s0: nldo-reg2 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <850000>;
> + regulator-max-microvolt = <850000>;
> + regulator-name = "vdda_ddr_pll_s0";
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vdda0v75_hdmi_s0: nldo-reg3 {
> + regulator-boot-on;
> + regulator-min-microvolt = <837500>;
> + regulator-max-microvolt = <837500>;
> + regulator-name = "vdda0v75_hdmi_s0";
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vdda_0v85_s0: nldo-reg4 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <850000>;
> + regulator-max-microvolt = <850000>;
> + regulator-name = "vdda_0v85_s0";
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + vdda_0v75_s0: nldo-reg5 {
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <750000>;
> + regulator-max-microvolt = <750000>;
> + regulator-name = "vdda_0v75_s0";
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> + };
> + };
> +};
> +
> +&i2c2 {
> + status = "okay";
> +
> + hym8563: rtc at 51 {
> + compatible = "haoyu,hym8563";
> + reg = <0x51>;
> + clock-output-names = "hym8563";
> + interrupt-parent = <&gpio0>;
> + interrupts = <RK_PA5 IRQ_TYPE_LEVEL_LOW>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&rtc_int>;
> + wakeup-source;
> + #clock-cells = <0>;
> + };
> +};
> +
> +&mdio0 {
> + rgmii_phy0: ethernet-phy at 1 {
> + compatible = "ethernet-phy-id4f51.e91b";
> + reg = <0x1>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&rgmii_phy0_rst>;
> + reset-assert-us = <20000>;
> + reset-deassert-us = <100000>;
> + reset-gpios = <&gpio3 RK_PD3 GPIO_ACTIVE_LOW>;
Do you need to assign a clock here, or does EVB2 use a different PHY
clock arrangement vs. EVB1? See the patch [1] by Sebastian for EVB1
[1] https://lore.kernel.org/linux-rockchip/20250910-rk3576-evb-network-v1-1-68ed4df272a2@collabora.com/
> + };
> +};
> +
> +&mdio1 {
> + rgmii_phy1: ethernet-phy at 1 {
> + compatible = "ethernet-phy-id4f51.e91b";
> + reg = <0x1>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&rgmii_phy1_rst>;
> + reset-assert-us = <20000>;
> + reset-deassert-us = <100000>;
> + reset-gpios = <&gpio3 RK_PD6 GPIO_ACTIVE_LOW>;
Ditto
> + };
> +};
> +
> +&pinctrl {
> + bluetooth {
> + bt_reg_on: bt-reg-on {
> + rockchip,pins = <1 RK_PC7 RK_FUNC_GPIO &pcfg_pull_up>;
> + };
> +
> + bt_wake_host: bt-wake-host {
> + rockchip,pins = <0 RK_PB1 RK_FUNC_GPIO &pcfg_pull_down>;
> + };
> +
> + host_wake_bt: host-wake-bt {
> + rockchip,pins = <1 RK_PD4 RK_FUNC_GPIO &pcfg_pull_up>;
> + };
> + };
> +
> + hym8563 {
> + rtc_int: rtc-int {
> + rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
> + };
> + };
> +
> + network {
> + rgmii_phy0_rst: rgmii-phy0-rst {
> + rockchip,pins = <3 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> +
> + rgmii_phy1_rst: rgmii-phy1-rst {
> + rockchip,pins = <3 RK_PD6 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> + };
> +
> + pcie1 {
> + pcie1_rst: pcie1-rst {
> + rockchip,pins = <4 RK_PA0 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> + };
> +
> + sata {
> + satapm_pwren: satapm-pwren {
> + rockchip,pins = <4 RK_PC7 RK_FUNC_GPIO &pcfg_output_high>;
Should this one become a regulator, instead of just statically
configuring it for high output? This looks fragile: I can imagine a
user toggling GPIOs at random in search for some pin they need, and
suddenly powering down their SATA port, potentially with data loss.
With a pin configured as a fixed voltage regulator the kernel would
say that it's in use in such a scenario.
> + };
> + };
> +
> + usb {
> + usb_host_pwren: usb-host-pwren {
> + rockchip,pins = <0 RK_PC3 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> +
> + usb_otg0_pwren: usb-otg0-pwren {
> + rockchip,pins = <0 RK_PD1 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> +
> + usbc0_int: usbc0-int {
> + rockchip,pins = <0 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;
You don't seem to be requesting this pin config from anywhere, do you?
Does EVB2 use a HUSB311 chip lacking mainline Linux support, like EVB1
does?
> + };
> + };
> +
> + wifi {
> + wifi_host_wake: wifi-host-wake {
> + rockchip,pins = <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_down>;
> + };
> +
> + wifi_pwren: wifi-pwren {
> + rockchip,pins = <1 RK_PC6 RK_FUNC_GPIO &pcfg_pull_up>;
> + };
> + };
> +};
> +
> +&sata0 {
> + pinctrl-0 = <&satapm_pwren>;
> + pinctrl-names = "default";
> + status = "okay";
> +};
> +
> +&sdio {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + bus-width = <4>;
> + cap-sd-highspeed;
> + cap-sdio-irq;
> + disable-wp;
> + keep-power-in-suspend;
> + max-frequency = <150000000>;
> + mmc-pwrseq = <&sdio_pwrseq>;
> + no-sd;
> + no-mmc;
> + non-removable;
> + pinctrl-names = "default";
> + pinctrl-0 = <&sdmmc1m0_bus4 &sdmmc1m0_clk &sdmmc1m0_cmd>;
> + sd-uhs-sdr104;
> + status = "okay";
> +
> + brcmf: wifi at 1 {
> + compatible = "brcm,bcm4329-fmac";
> + reg = <1>;
> + interrupt-parent = <&gpio0>;
> + interrupts = <RK_PB0 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-names = "host-wake";
> + pinctrl-names = "default";
> + pinctrl-0 = <&wifi_host_wake>;
> + };
> +};
> +
> +&sdhci {
> + bus-width = <8>;
> + full-pwr-cycle-in-suspend;
> + max-frequency = <200000000>;
> + mmc-hs400-1_8v;
> + mmc-hs400-enhanced-strobe;
> + no-sdio;
> + no-sd;
> + non-removable;
> + status = "okay";
> +};
> +
> +&sdmmc {
> + bus-width = <4>;
> + cap-mmc-highspeed;
This seems to contradict the "no-mmc" just below, remove perhaps?
> + cap-sd-highspeed;
> + disable-wp;
> + max-frequency = <200000000>;
> + no-sdio;
Can't this SD slot support an external SDIO card?
> + no-mmc;
> + sd-uhs-sdr104;
> + vqmmc-supply = <&vccio_sd_s0>;
> + status = "okay";
> +};
> +
> +&saradc {
> + vref-supply = <&vcca_1v8_s0>;
> + status = "okay";
> +};
> +
> +&u2phy0 {
> + status = "okay";
> +};
> +
> +&u2phy0_otg {
> + phy-supply = <&vbus5v0_typec>;
> + status = "okay";
> +};
> +
> +&u2phy1 {
> + status = "okay";
> +};
> +
> +&u2phy1_otg {
> + phy-supply = <&vcc5v0_host>;
> + status = "okay";
> +};
> +
> +&uart0 {
> + status = "okay";
> +};
> +
> +&uart4 {
> + pinctrl-0 = <&uart4m1_xfer &uart4m1_ctsn &uart4m1_rtsn>;
> + pinctrl-names = "default";
> + uart-has-rtscts;
> + status = "okay";
> +
> + bluetooth {
> + compatible = "brcm,bcm43438-bt";
> + clocks = <&hym8563>;
> + clock-names = "lpo";
> + device-wakeup-gpios = <&gpio1 RK_PD4 GPIO_ACTIVE_HIGH>;
> + interrupt-parent = <&gpio0>;
> + interrupts = <RK_PB1 IRQ_TYPE_LEVEL_HIGH>;
> + pinctrl-0 = <&bt_reg_on &bt_wake_host &host_wake_bt>;
> + pinctrl-names = "default";
> + shutdown-gpios = <&gpio1 RK_PC7 GPIO_ACTIVE_HIGH>;
> + vbat-supply = <&vcc_3v3_s3>;
> + vddio-supply = <&vcc_1v8_s3>;
> + };
> +};
> +
> +&ufshc {
Given that you have the required regulators defined already, it sounds
like a good idea to reference them here. Something like this perhaps?
+ vcc-supply = <&vcc_ufs_s0>;
+ vccq-supply = <&vcc1v2_ufs_vccq_s0>;
+ vccq2-supply = <&vcc1v8_ufs_vccq2_s0>;
> + status = "okay";
> +};
> +
> +&usbdp_phy {
> + rockchip,dp-lane-mux = <2 3>;
Do you need static lane muxing here, or is it connected to a Type-C DP
AltMode port? You don't seem to be defining a regular DP connector
anywhere (although I realise that there isn't mainline DP support on
RK3576 yet, anyway), but you do mention a Type-C IRQ line in pin
configs.
> + status = "okay";
> +};
> +
> +&usb_drd0_dwc3 {
> + dr_mode = "host";
No OTG capability here? Is it connected somewhere else than USB2.0
OTG0, where you link up an OTG regulator?
> + status = "okay";
> +};
> +
> +&usb_drd1_dwc3 {
> + dr_mode = "host";
> + status = "okay";
> +};
> +
> +&vop {
> + 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>;
> + };
> +};
> --
> 2.51.1
Best regards,
Alexey
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