|  | // SPDX-License-Identifier: (GPL-2.0+ OR MIT) | 
|  | /* | 
|  | * Copyright (c) 2019 BayLibre SAS. All rights reserved. | 
|  | */ | 
|  |  | 
|  | /dts-v1/; | 
|  |  | 
|  | #include "meson-sm1.dtsi" | 
|  | #include <dt-bindings/gpio/gpio.h> | 
|  | #include <dt-bindings/input/input.h> | 
|  | #include <dt-bindings/gpio/meson-g12a-gpio.h> | 
|  | #include <dt-bindings/sound/meson-g12a-tohdmitx.h> | 
|  |  | 
|  | / { | 
|  | compatible = "seirobotics,sei610", "amlogic,sm1"; | 
|  | model = "SEI Robotics SEI610"; | 
|  |  | 
|  | aliases { | 
|  | serial0 = &uart_AO; | 
|  | ethernet0 = ðmac; | 
|  | }; | 
|  |  | 
|  | mono_dac: audio-codec-0 { | 
|  | compatible = "maxim,max98357a"; | 
|  | #sound-dai-cells = <0>; | 
|  | sound-name-prefix = "U16"; | 
|  | sdmode-gpios = <&gpio GPIOX_8 GPIO_ACTIVE_HIGH>; | 
|  | }; | 
|  |  | 
|  | dmics: audio-codec-1 { | 
|  | #sound-dai-cells = <0>; | 
|  | compatible = "dmic-codec"; | 
|  | num-channels = <2>; | 
|  | wakeup-delay-ms = <50>; | 
|  | sound-name-prefix = "MIC"; | 
|  | }; | 
|  |  | 
|  | chosen { | 
|  | stdout-path = "serial0:115200n8"; | 
|  | }; | 
|  |  | 
|  | emmc_pwrseq: emmc-pwrseq { | 
|  | compatible = "mmc-pwrseq-emmc"; | 
|  | reset-gpios = <&gpio BOOT_12 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  |  | 
|  | gpio-keys { | 
|  | compatible = "gpio-keys"; | 
|  |  | 
|  | key-1 { | 
|  | label = "A"; | 
|  | linux,code = <BTN_0>; | 
|  | gpios = <&gpio GPIOH_6 GPIO_ACTIVE_LOW>; | 
|  | interrupt-parent = <&gpio_intc>; | 
|  | interrupts = <IRQID_GPIOH_6 IRQ_TYPE_EDGE_BOTH>; | 
|  | }; | 
|  |  | 
|  | key-2 { | 
|  | label = "B"; | 
|  | linux,code = <BTN_1>; | 
|  | gpios = <&gpio GPIOH_7 GPIO_ACTIVE_LOW>; | 
|  | interrupt-parent = <&gpio_intc>; | 
|  | interrupts = <IRQID_GPIOH_7 IRQ_TYPE_EDGE_BOTH>; | 
|  | }; | 
|  |  | 
|  | key-3 { | 
|  | label = "C"; | 
|  | linux,code = <BTN_2>; | 
|  | gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>; | 
|  | interrupt-parent = <&gpio_intc>; | 
|  | interrupts = <IRQID_GPIOAO_2 IRQ_TYPE_EDGE_BOTH>; | 
|  | }; | 
|  |  | 
|  | key-mic-mute { | 
|  | label = "MicMute"; | 
|  | linux,code = <SW_MUTE_DEVICE>; | 
|  | linux,input-type = <EV_SW>; | 
|  | gpios = <&gpio_ao GPIOE_2 GPIO_ACTIVE_LOW>; | 
|  | interrupt-parent = <&gpio_intc>; | 
|  | interrupts = <IRQID_GPIOE_2 IRQ_TYPE_EDGE_BOTH>; | 
|  | }; | 
|  |  | 
|  | key-power { | 
|  | label = "PowerKey"; | 
|  | linux,code = <KEY_POWER>; | 
|  | gpios = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_LOW>; | 
|  | interrupt-parent = <&gpio_intc>; | 
|  | interrupts = <IRQID_GPIOAO_3 IRQ_TYPE_EDGE_BOTH>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | hdmi-connector { | 
|  | compatible = "hdmi-connector"; | 
|  | type = "a"; | 
|  |  | 
|  | port { | 
|  | hdmi_connector_in: endpoint { | 
|  | remote-endpoint = <&hdmi_tx_tmds_out>; | 
|  | }; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | led-controller-1 { | 
|  | compatible = "gpio-leds"; | 
|  |  | 
|  | led-1 { | 
|  | label = "sei610:blue:bt"; | 
|  | gpios = <&gpio GPIOC_7 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>; | 
|  | default-state = "off"; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | led-controller-2 { | 
|  | compatible = "pwm-leds"; | 
|  |  | 
|  | led-2 { | 
|  | label = "sei610:red:power"; | 
|  | pwms = <&pwm_AO_ab 0 30518 0>; | 
|  | max-brightness = <255>; | 
|  | linux,default-trigger = "default-on"; | 
|  | active-low; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | memory@0 { | 
|  | device_type = "memory"; | 
|  | reg = <0x0 0x0 0x0 0x40000000>; | 
|  | }; | 
|  |  | 
|  | ao_5v: regulator-ao-5v { | 
|  | compatible = "regulator-fixed"; | 
|  | regulator-name = "AO_5V"; | 
|  | regulator-min-microvolt = <5000000>; | 
|  | regulator-max-microvolt = <5000000>; | 
|  | vin-supply = <&dc_in>; | 
|  | regulator-always-on; | 
|  | }; | 
|  |  | 
|  | dc_in: regulator-dc-in { | 
|  | compatible = "regulator-fixed"; | 
|  | regulator-name = "DC_IN"; | 
|  | regulator-min-microvolt = <5000000>; | 
|  | regulator-max-microvolt = <5000000>; | 
|  | regulator-always-on; | 
|  | }; | 
|  |  | 
|  | emmc_1v8: regulator-emmc-1v8 { | 
|  | compatible = "regulator-fixed"; | 
|  | regulator-name = "EMMC_1V8"; | 
|  | regulator-min-microvolt = <1800000>; | 
|  | regulator-max-microvolt = <1800000>; | 
|  | vin-supply = <&vddao_3v3>; | 
|  | regulator-always-on; | 
|  | }; | 
|  |  | 
|  | vddao_3v3: regulator-vddao-3v3 { | 
|  | compatible = "regulator-fixed"; | 
|  | regulator-name = "VDDAO_3V3"; | 
|  | regulator-min-microvolt = <3300000>; | 
|  | regulator-max-microvolt = <3300000>; | 
|  | vin-supply = <&dc_in>; | 
|  | regulator-always-on; | 
|  | }; | 
|  |  | 
|  | /* Used by Tuner, RGB Led & IR Emitter LED array */ | 
|  | vddao_3v3_t: regulator-vddao-3v3-t { | 
|  | compatible = "regulator-fixed"; | 
|  | regulator-name = "VDDAO_3V3_T"; | 
|  | regulator-min-microvolt = <3300000>; | 
|  | regulator-max-microvolt = <3300000>; | 
|  | vin-supply = <&vddao_3v3>; | 
|  | gpio = <&gpio GPIOH_8 GPIO_OPEN_DRAIN>; | 
|  | regulator-always-on; | 
|  | }; | 
|  |  | 
|  | vddcpu: regulator-vddcpu { | 
|  | /* | 
|  | * SY8120B1ABC DC/DC Regulator. | 
|  | */ | 
|  | compatible = "pwm-regulator"; | 
|  |  | 
|  | regulator-name = "VDDCPU"; | 
|  | regulator-min-microvolt = <690000>; | 
|  | regulator-max-microvolt = <1050000>; | 
|  |  | 
|  | pwm-supply = <&dc_in>; | 
|  |  | 
|  | pwms = <&pwm_AO_cd 1 1500 0>; | 
|  | pwm-dutycycle-range = <100 0>; | 
|  |  | 
|  | regulator-boot-on; | 
|  | regulator-always-on; | 
|  | }; | 
|  |  | 
|  | vddio_ao1v8: regulator-vddio-ao1v8 { | 
|  | compatible = "regulator-fixed"; | 
|  | regulator-name = "VDDIO_AO1V8"; | 
|  | regulator-min-microvolt = <1800000>; | 
|  | regulator-max-microvolt = <1800000>; | 
|  | vin-supply = <&vddao_3v3>; | 
|  | regulator-always-on; | 
|  | }; | 
|  |  | 
|  | sdio_pwrseq: sdio-pwrseq { | 
|  | compatible = "mmc-pwrseq-simple"; | 
|  | reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>; | 
|  | clocks = <&wifi32k>; | 
|  | clock-names = "ext_clock"; | 
|  | }; | 
|  |  | 
|  | sound { | 
|  | compatible = "amlogic,axg-sound-card"; | 
|  | model = "SEI610"; | 
|  | audio-aux-devs = <&tdmout_a>, <&tdmout_b>, | 
|  | <&tdmin_a>, <&tdmin_b>; | 
|  | audio-routing = "TDMOUT_A IN 0", "FRDDR_A OUT 0", | 
|  | "TDMOUT_A IN 1", "FRDDR_B OUT 0", | 
|  | "TDMOUT_A IN 2", "FRDDR_C OUT 0", | 
|  | "TDM_A Playback", "TDMOUT_A OUT", | 
|  | "TDMOUT_B IN 0", "FRDDR_A OUT 1", | 
|  | "TDMOUT_B IN 1", "FRDDR_B OUT 1", | 
|  | "TDMOUT_B IN 2", "FRDDR_C OUT 1", | 
|  | "TDM_B Playback", "TDMOUT_B OUT", | 
|  | "TODDR_A IN 4", "PDM Capture", | 
|  | "TODDR_B IN 4", "PDM Capture", | 
|  | "TODDR_C IN 4", "PDM Capture", | 
|  | "TDMIN_A IN 0", "TDM_A Capture", | 
|  | "TDMIN_A IN 3", "TDM_A Loopback", | 
|  | "TDMIN_B IN 0", "TDM_A Capture", | 
|  | "TDMIN_B IN 3", "TDM_A Loopback", | 
|  | "TDMIN_A IN 1", "TDM_B Capture", | 
|  | "TDMIN_A IN 4", "TDM_B Loopback", | 
|  | "TDMIN_B IN 1", "TDM_B Capture", | 
|  | "TDMIN_B IN 4", "TDM_B Loopback", | 
|  | "TODDR_A IN 0", "TDMIN_A OUT", | 
|  | "TODDR_B IN 0", "TDMIN_A OUT", | 
|  | "TODDR_C IN 0", "TDMIN_A OUT", | 
|  | "TODDR_A IN 1", "TDMIN_B OUT", | 
|  | "TODDR_B IN 1", "TDMIN_B OUT", | 
|  | "TODDR_C IN 1", "TDMIN_B OUT"; | 
|  |  | 
|  | clocks = <&clkc CLKID_MPLL2>, | 
|  | <&clkc CLKID_MPLL0>, | 
|  | <&clkc CLKID_MPLL1>; | 
|  |  | 
|  | assigned-clocks = <&clkc CLKID_MPLL2>, | 
|  | <&clkc CLKID_MPLL0>, | 
|  | <&clkc CLKID_MPLL1>; | 
|  | assigned-clock-parents = <0>, <0>, <0>; | 
|  | assigned-clock-rates = <294912000>, | 
|  | <270950400>, | 
|  | <393216000>; | 
|  |  | 
|  | dai-link-0 { | 
|  | sound-dai = <&frddr_a>; | 
|  | }; | 
|  |  | 
|  | dai-link-1 { | 
|  | sound-dai = <&frddr_b>; | 
|  | }; | 
|  |  | 
|  | dai-link-2 { | 
|  | sound-dai = <&frddr_c>; | 
|  | }; | 
|  |  | 
|  | dai-link-3 { | 
|  | sound-dai = <&toddr_a>; | 
|  | }; | 
|  |  | 
|  | dai-link-4 { | 
|  | sound-dai = <&toddr_b>; | 
|  | }; | 
|  |  | 
|  | dai-link-5 { | 
|  | sound-dai = <&toddr_c>; | 
|  | }; | 
|  |  | 
|  | /* internal speaker interface */ | 
|  | dai-link-6 { | 
|  | sound-dai = <&tdmif_a>; | 
|  | dai-format = "i2s"; | 
|  | dai-tdm-slot-tx-mask-0 = <1 1>; | 
|  | mclk-fs = <256>; | 
|  |  | 
|  | codec-0 { | 
|  | sound-dai = <&mono_dac>; | 
|  | }; | 
|  |  | 
|  | codec-1 { | 
|  | sound-dai = <&tohdmitx TOHDMITX_I2S_IN_A>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | /* 8ch hdmi interface */ | 
|  | dai-link-7 { | 
|  | sound-dai = <&tdmif_b>; | 
|  | dai-format = "i2s"; | 
|  | dai-tdm-slot-tx-mask-0 = <1 1>; | 
|  | dai-tdm-slot-tx-mask-1 = <1 1>; | 
|  | dai-tdm-slot-tx-mask-2 = <1 1>; | 
|  | dai-tdm-slot-tx-mask-3 = <1 1>; | 
|  | mclk-fs = <256>; | 
|  |  | 
|  | codec { | 
|  | sound-dai = <&tohdmitx TOHDMITX_I2S_IN_B>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | /* internal digital mics */ | 
|  | dai-link-8 { | 
|  | sound-dai = <&pdm>; | 
|  |  | 
|  | codec { | 
|  | sound-dai = <&dmics>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | /* hdmi glue */ | 
|  | dai-link-9 { | 
|  | sound-dai = <&tohdmitx TOHDMITX_I2S_OUT>; | 
|  |  | 
|  | codec { | 
|  | sound-dai = <&hdmi_tx>; | 
|  | }; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | wifi32k: wifi32k { | 
|  | compatible = "pwm-clock"; | 
|  | #clock-cells = <0>; | 
|  | clock-frequency = <32768>; | 
|  | pwms = <&pwm_ef 0 30518 0>; /* PWM_E at 32.768KHz */ | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &arb { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &cec_AO { | 
|  | pinctrl-0 = <&cec_ao_a_h_pins>; | 
|  | pinctrl-names = "default"; | 
|  | status = "disabled"; | 
|  | hdmi-phandle = <&hdmi_tx>; | 
|  | }; | 
|  |  | 
|  | &cecb_AO { | 
|  | pinctrl-0 = <&cec_ao_b_h_pins>; | 
|  | pinctrl-names = "default"; | 
|  | status = "okay"; | 
|  | hdmi-phandle = <&hdmi_tx>; | 
|  | }; | 
|  |  | 
|  | &clkc_audio { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &cpu0 { | 
|  | cpu-supply = <&vddcpu>; | 
|  | operating-points-v2 = <&cpu_opp_table>; | 
|  | clocks = <&clkc CLKID_CPU_CLK>; | 
|  | clock-latency = <50000>; | 
|  | }; | 
|  |  | 
|  | &cpu1 { | 
|  | cpu-supply = <&vddcpu>; | 
|  | operating-points-v2 = <&cpu_opp_table>; | 
|  | clocks = <&clkc CLKID_CPU1_CLK>; | 
|  | clock-latency = <50000>; | 
|  | }; | 
|  |  | 
|  | &cpu2 { | 
|  | cpu-supply = <&vddcpu>; | 
|  | operating-points-v2 = <&cpu_opp_table>; | 
|  | clocks = <&clkc CLKID_CPU2_CLK>; | 
|  | clock-latency = <50000>; | 
|  | }; | 
|  |  | 
|  | &cpu3 { | 
|  | cpu-supply = <&vddcpu>; | 
|  | operating-points-v2 = <&cpu_opp_table>; | 
|  | clocks = <&clkc CLKID_CPU3_CLK>; | 
|  | clock-latency = <50000>; | 
|  | }; | 
|  |  | 
|  | ðmac { | 
|  | status = "okay"; | 
|  | phy-handle = <&internal_ephy>; | 
|  | phy-mode = "rmii"; | 
|  | }; | 
|  |  | 
|  | &frddr_a { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &frddr_b { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &frddr_c { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &hdmi_tx { | 
|  | status = "okay"; | 
|  | pinctrl-0 = <&hdmitx_hpd_pins>, <&hdmitx_ddc_pins>; | 
|  | pinctrl-names = "default"; | 
|  | }; | 
|  |  | 
|  | &hdmi_tx_tmds_port { | 
|  | hdmi_tx_tmds_out: endpoint { | 
|  | remote-endpoint = <&hdmi_connector_in>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &i2c3 { | 
|  | status = "okay"; | 
|  | pinctrl-0 = <&i2c3_sda_a_pins>, <&i2c3_sck_a_pins>; | 
|  | pinctrl-names = "default"; | 
|  | }; | 
|  |  | 
|  | &ir { | 
|  | status = "okay"; | 
|  | pinctrl-0 = <&remote_input_ao_pins>; | 
|  | pinctrl-names = "default"; | 
|  | }; | 
|  |  | 
|  | &pdm { | 
|  | pinctrl-0 = <&pdm_din0_z_pins>, <&pdm_dclk_z_pins>; | 
|  | pinctrl-names = "default"; | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &pwm_AO_ab { | 
|  | status = "okay"; | 
|  | pinctrl-0 = <&pwm_ao_a_pins>; | 
|  | pinctrl-names = "default"; | 
|  | clocks = <&xtal>; | 
|  | clock-names = "clkin0"; | 
|  | }; | 
|  |  | 
|  | &pwm_AO_cd { | 
|  | pinctrl-0 = <&pwm_ao_d_e_pins>; | 
|  | pinctrl-names = "default"; | 
|  | clocks = <&xtal>; | 
|  | clock-names = "clkin1"; | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &pwm_ef { | 
|  | status = "okay"; | 
|  | pinctrl-0 = <&pwm_e_pins>; | 
|  | pinctrl-names = "default"; | 
|  | clocks = <&xtal>; | 
|  | clock-names = "clkin0"; | 
|  | }; | 
|  |  | 
|  | &saradc { | 
|  | status = "okay"; | 
|  | vref-supply = <&vddio_ao1v8>; | 
|  | }; | 
|  |  | 
|  | /* SDIO */ | 
|  | &sd_emmc_a { | 
|  | status = "okay"; | 
|  | pinctrl-0 = <&sdio_pins>; | 
|  | pinctrl-1 = <&sdio_clk_gate_pins>; | 
|  | pinctrl-names = "default", "clk-gate"; | 
|  | #address-cells = <1>; | 
|  | #size-cells = <0>; | 
|  |  | 
|  | bus-width = <4>; | 
|  | cap-sd-highspeed; | 
|  | sd-uhs-sdr50; | 
|  | max-frequency = <100000000>; | 
|  |  | 
|  | non-removable; | 
|  | disable-wp; | 
|  |  | 
|  | /* WiFi firmware requires power to be kept while in suspend */ | 
|  | keep-power-in-suspend; | 
|  |  | 
|  | mmc-pwrseq = <&sdio_pwrseq>; | 
|  |  | 
|  | vmmc-supply = <&vddao_3v3>; | 
|  | vqmmc-supply = <&vddio_ao1v8>; | 
|  |  | 
|  | brcmf: wifi@1 { | 
|  | reg = <1>; | 
|  | compatible = "brcm,bcm4329-fmac"; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | /* SD card */ | 
|  | &sd_emmc_b { | 
|  | status = "okay"; | 
|  | pinctrl-0 = <&sdcard_c_pins>; | 
|  | pinctrl-1 = <&sdcard_clk_gate_c_pins>; | 
|  | pinctrl-names = "default", "clk-gate"; | 
|  |  | 
|  | bus-width = <4>; | 
|  | cap-sd-highspeed; | 
|  | max-frequency = <50000000>; | 
|  | disable-wp; | 
|  |  | 
|  | cd-gpios = <&gpio GPIOC_6 GPIO_ACTIVE_LOW>; | 
|  | vmmc-supply = <&vddao_3v3>; | 
|  | vqmmc-supply = <&vddao_3v3>; | 
|  | }; | 
|  |  | 
|  | /* eMMC */ | 
|  | &sd_emmc_c { | 
|  | status = "okay"; | 
|  | pinctrl-0 = <&emmc_ctrl_pins>, <&emmc_data_8b_pins>, <&emmc_ds_pins>; | 
|  | pinctrl-1 = <&emmc_clk_gate_pins>; | 
|  | pinctrl-names = "default", "clk-gate"; | 
|  |  | 
|  | bus-width = <8>; | 
|  | cap-mmc-highspeed; | 
|  | mmc-ddr-1_8v; | 
|  | mmc-hs200-1_8v; | 
|  | max-frequency = <200000000>; | 
|  | non-removable; | 
|  | disable-wp; | 
|  |  | 
|  | mmc-pwrseq = <&emmc_pwrseq>; | 
|  | vmmc-supply = <&vddao_3v3>; | 
|  | vqmmc-supply = <&emmc_1v8>; | 
|  | }; | 
|  |  | 
|  | &tdmif_a { | 
|  | pinctrl-0 = <&tdm_a_dout0_pins>, <&tdm_a_fs_pins>, <&tdm_a_sclk_pins>; | 
|  | pinctrl-names = "default"; | 
|  | status = "okay"; | 
|  |  | 
|  | assigned-clocks = <&clkc_audio AUD_CLKID_TDM_SCLK_PAD0>, | 
|  | <&clkc_audio AUD_CLKID_TDM_LRCLK_PAD0>; | 
|  | assigned-clock-parents = <&clkc_audio AUD_CLKID_MST_A_SCLK>, | 
|  | <&clkc_audio AUD_CLKID_MST_A_LRCLK>; | 
|  | assigned-clock-rates = <0>, <0>; | 
|  | }; | 
|  |  | 
|  | &tdmif_b { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &tdmin_a { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &tdmin_b { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &tdmout_a { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &tdmout_b { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &toddr_a { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &toddr_b { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &toddr_c { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &tohdmitx { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &uart_A { | 
|  | status = "okay"; | 
|  | pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>; | 
|  | pinctrl-names = "default"; | 
|  | uart-has-rtscts; | 
|  |  | 
|  | bluetooth { | 
|  | compatible = "brcm,bcm43438-bt"; | 
|  | interrupt-parent = <&gpio_intc>; | 
|  | interrupts = <IRQID_GPIOX_18 IRQ_TYPE_LEVEL_HIGH>; | 
|  | interrupt-names = "host-wakeup"; | 
|  | shutdown-gpios = <&gpio GPIOX_17 GPIO_ACTIVE_HIGH>; | 
|  | max-speed = <2000000>; | 
|  | clocks = <&wifi32k>; | 
|  | clock-names = "lpo"; | 
|  | vbat-supply = <&vddao_3v3>; | 
|  | vddio-supply = <&vddio_ao1v8>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | /* Exposed via the on-board USB to Serial FT232RL IC */ | 
|  | &uart_AO { | 
|  | status = "okay"; | 
|  | pinctrl-0 = <&uart_ao_a_pins>; | 
|  | pinctrl-names = "default"; | 
|  | }; | 
|  |  | 
|  | &usb { | 
|  | status = "okay"; | 
|  | dr_mode = "otg"; | 
|  | }; |