On 12.01.2023 13:02, Durai Manickam KR wrote: > Add device tree file for sam9x60 curiosity board. > > Signed-off-by: Durai Manickam KR <durai.manickamkr@xxxxxxxxxxxxx> > --- > arch/arm/boot/dts/Makefile | 1 + > arch/arm/boot/dts/at91-sam9x60_curiosity.dts | 499 +++++++++++++++++++ > 2 files changed, 500 insertions(+) > create mode 100644 arch/arm/boot/dts/at91-sam9x60_curiosity.dts There are some warnings with this file. Can you please check: DTC arch/arm/boot/dts/at91-sam9x60_curiosity.dtb arch/arm/boot/dts/at91-sam9x60_curiosity.dts:208.4-17: Warning (reg_format): /ahb/apb/flexcom@f801c000/i2c@600/eeprom@53:reg: property has invalid length (4 bytes) (#address-cells == 2, #size-cells == 1) arch/arm/boot/dts/at91-sam9x60_curiosity.dtb: Warning (pci_device_reg): Failed prerequisite 'reg_format' arch/arm/boot/dts/at91-sam9x60_curiosity.dtb: Warning (pci_device_bus_num): Failed prerequisite 'reg_format' arch/arm/boot/dts/at91-sam9x60_curiosity.dtb: Warning (simple_bus_reg): Failed prerequisite 'reg_format' arch/arm/boot/dts/sam9x60.dtsi:765.19-781.7: Warning (i2c_bus_bridge): /ahb/apb/flexcom@f801c000/i2c@600: incorrect #address-cells for I2C bus also defined at arch/arm/boot/dts/at91-sam9x60_curiosity.dts:197.16-211.4 arch/arm/boot/dts/sam9x60.dtsi:765.19-781.7: Warning (i2c_bus_bridge): /ahb/apb/flexcom@f801c000/i2c@600: incorrect #size-cells for I2C bus also defined at arch/arm/boot/dts/at91-sam9x60_curiosity.dts:197.16-211.4 arch/arm/boot/dts/at91-sam9x60_curiosity.dtb: Warning (i2c_bus_reg): Failed prerequisite 'reg_format' arch/arm/boot/dts/at91-sam9x60_curiosity.dtb: Warning (i2c_bus_reg): Failed prerequisite 'i2c_bus_bridge' arch/arm/boot/dts/at91-sam9x60_curiosity.dtb: Warning (spi_bus_reg): Failed prerequisite 'reg_format' arch/arm/boot/dts/at91-sam9x60_curiosity.dts:206.13-210.5: Warning (avoid_default_addr_size): /ahb/apb/flexcom@f801c000/i2c@600/eeprom@53: Relying on default #address-cells value arch/arm/boot/dts/at91-sam9x60_curiosity.dts:206.13-210.5: Warning (avoid_default_addr_size): /ahb/apb/flexcom@f801c000/i2c@600/eeprom@53: Relying on default #size-cells value arch/arm/boot/dts/at91-sam9x60_curiosity.dtb: Warning (avoid_unnecessary_addr_size): Failed prerequisite 'avoid_default_addr_size' arch/arm/boot/dts/at91-sam9x60_curiosity.dtb: Warning (unique_unit_address_if_enabled): Failed prerequisite 'avoid_default_addr_size' > > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile > index 6aa7dc4db2fc..da20980384c4 100644 > --- a/arch/arm/boot/dts/Makefile > +++ b/arch/arm/boot/dts/Makefile > @@ -51,6 +51,7 @@ dtb-$(CONFIG_SOC_AT91SAM9) += \ > at91sam9x25ek.dtb \ > at91sam9x35ek.dtb > dtb-$(CONFIG_SOC_SAM9X60) += \ > + at91-sam9x60_curiosity.dtb \ > at91-sam9x60ek.dtb > dtb-$(CONFIG_SOC_SAM_V7) += \ > at91-kizbox2-2.dtb \ > diff --git a/arch/arm/boot/dts/at91-sam9x60_curiosity.dts b/arch/arm/boot/dts/at91-sam9x60_curiosity.dts > new file mode 100644 > index 000000000000..4be98245326c > --- /dev/null > +++ b/arch/arm/boot/dts/at91-sam9x60_curiosity.dts > @@ -0,0 +1,499 @@ > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) > +/* > + * at91-sam9x60_curiosity.dts - Device Tree file for Microchip SAM9X60 Curiosity board > + * > + * Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries > + * > + * Author: Durai Manickam KR <durai.manickamkr@xxxxxxxxxxxxx> > + */ > +/dts-v1/; > +#include "sam9x60.dtsi" > +#include <dt-bindings/input/input.h> > + > +/ { > + model = "Microchip SAM9X60 Curiosity"; > + compatible = "microchip,sam9x60-curiosity", "microchip,sam9x60", "atmel,at91sam9"; > + > + aliases { > + i2c0 = &i2c0; > + i2c1 = &i2c6; > + serial2 = &uart7; > + }; > + > + chosen { > + stdout-path = "serial0:115200n8"; > + }; > + > + memory@20000000 { > + reg = <0x20000000 0x8000000>; > + }; > + > + clocks { > + slow_xtal { > + clock-frequency = <32768>; > + }; > + > + main_xtal { > + clock-frequency = <24000000>; > + }; > + }; > + > + gpio-keys { > + compatible = "gpio-keys"; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_key_gpio_default>; > + > + button-user { > + label = "PB_USER"; > + gpios = <&pioA 29 GPIO_ACTIVE_LOW>; > + linux,code = <KEY_PROG1>; > + wakeup-source; > + }; > + }; > + > + leds { > + compatible = "gpio-leds"; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_gpio_leds>; > + > + led-red { > + label = "red"; > + gpios = <&pioD 17 GPIO_ACTIVE_HIGH>; > + }; > + > + led-green { > + label = "green"; > + gpios = <&pioD 19 GPIO_ACTIVE_HIGH>; > + }; > + > + led-blue { > + label = "blue"; > + gpios = <&pioD 21 GPIO_ACTIVE_HIGH>; > + linux,default-trigger = "heartbeat"; > + }; > + }; > + > + > + vdd_1v8: regulator-0 { > + compatible = "regulator-fixed"; > + regulator-always-on; > + regulator-max-microvolt = <1800000>; > + regulator-min-microvolt = <1800000>; > + regulator-name = "VDD_1V8"; > + }; > + > + vdd_1v15: regulator-1 { > + compatible = "regulator-fixed"; > + regulator-always-on; > + regulator-max-microvolt = <1150000>; > + regulator-min-microvolt = <1150000>; > + regulator-name = "VDD_1V15"; > + }; > + > + vdd1_3v3: regulator-2 { > + compatible = "regulator-fixed"; > + regulator-always-on; > + regulator-max-microvolt = <3300000>; > + regulator-min-microvolt = <3300000>; > + regulator-name = "VDD1_3V3"; > + }; > +}; > + > +&adc { > + vddana-supply = <&vdd1_3v3>; > + vref-supply = <&vdd1_3v3>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_adc_default &pinctrl_adtrg_default>; > + status = "okay"; > +}; > + > +&can0 { > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_can0_rx_tx>; > + status = "disabled"; /* Conflict with dbgu. */ > +}; > + > +&can1 { > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_can1_rx_tx>; > + status = "okay"; > +}; > + > +&dbgu { > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_dbgu>; > + status = "okay"; /* Conflict with can0. */ > +}; > + > +&ebi { > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_ebi_addr_nand &pinctrl_ebi_data_lsb>; > + status = "okay"; > + > + nand_controller: nand-controller { > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_nand_oe_we &pinctrl_nand_cs &pinctrl_nand_rb>; > + status = "okay"; > + > + nand@3 { > + reg = <0x3 0x0 0x800000>; > + rb-gpios = <&pioD 5 GPIO_ACTIVE_HIGH>; > + cs-gpios = <&pioD 4 GPIO_ACTIVE_HIGH>; > + nand-bus-width = <8>; > + nand-ecc-mode = "hw"; > + nand-ecc-strength = <8>; > + nand-ecc-step-size = <512>; > + nand-on-flash-bbt; > + label = "atmel_nand"; > + > + partitions { > + compatible = "fixed-partitions"; > + #address-cells = <1>; > + #size-cells = <1>; > + > + at91bootstrap@0 { > + label = "at91bootstrap"; > + reg = <0x0 0x40000>; > + }; > + > + uboot@40000 { > + label = "u-boot"; > + reg = <0x40000 0xc0000>; > + }; > + > + ubootenvred@100000 { > + label = "U-Boot Env Redundant"; > + reg = <0x100000 0x40000>; > + }; > + > + ubootenv@140000 { > + label = "U-Boot Env"; > + reg = <0x140000 0x40000>; > + }; > + > + dtb@180000 { > + label = "device tree"; > + reg = <0x180000 0x80000>; > + }; > + > + kernel@200000 { > + label = "kernel"; > + reg = <0x200000 0x600000>; > + }; > + > + rootfs@800000 { > + label = "rootfs"; > + reg = <0x800000 0x1f800000>; > + }; > + }; > + }; > + }; > +}; > + > +&flx0 { > + atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>; > + status = "okay"; > + > + i2c0: i2c@600 { > + dmas = <0>, <0>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_flx0_default>; > + i2c-analog-filter; > + i2c-digital-filter; > + i2c-digital-filter-width-ns = <35>; > + status = "okay"; > + > + eeprom@53 { > + compatible = "atmel,24c02"; > + reg = <0x53>; > + pagesize = <16>; > + }; > + }; > +}; > + > +&flx6 { > + atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>; > + status = "okay"; > + > + i2c6: i2c@600 { > + dmas = <0>, <0>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_flx6_default>; > + i2c-analog-filter; > + i2c-digital-filter; > + i2c-digital-filter-width-ns = <35>; > + status = "disabled"; > + }; > +}; > + > +&flx7 { > + atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>; > + status = "okay"; > + > + uart7: serial@200 { > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_flx7_default>; > + status = "okay"; > + }; > +}; > + > +&macb0 { > + phy-mode = "rmii"; > + #address-cells = <1>; > + #size-cells = <0>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_macb0_rmii>; > + status = "okay"; > + > + ethernet-phy@0 { > + reg = <0x0>; > + }; > +}; > + > +&pinctrl { > + adc { > + pinctrl_adc_default: adc-default { > + atmel,pins = <AT91_PIOB 14 AT91_PERIPH_A AT91_PINCTRL_NONE>; > + }; > + > + pinctrl_adtrg_default: adtrg-default { > + atmel,pins = <AT91_PIOB 18 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>; > + }; > + }; > + > + can0 { > + pinctrl_can0_rx_tx: can0-rx-tx { > + atmel,pins = > + <AT91_PIOA 9 AT91_PERIPH_B AT91_PINCTRL_NONE /* CANRX0 */ > + AT91_PIOA 10 AT91_PERIPH_B AT91_PINCTRL_NONE /* CANTX0 */ > + AT91_PIOC 9 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_DOWN>; /* Enable CAN Transceivers */ > + }; > + }; > + > + can1 { > + pinctrl_can1_rx_tx: can1-rx-tx { > + atmel,pins = > + <AT91_PIOA 6 AT91_PERIPH_B AT91_PINCTRL_NONE /* CANRX1 */ > + AT91_PIOA 5 AT91_PERIPH_B AT91_PINCTRL_NONE /* CANTX1 */ > + AT91_PIOB 17 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_DOWN>; /* Enable CAN Transceivers */ > + }; > + }; > + > + dbgu { > + pinctrl_dbgu: dbgu-0 { > + atmel,pins = <AT91_PIOA 9 AT91_PERIPH_A AT91_PINCTRL_PULL_UP > + AT91_PIOA 10 AT91_PERIPH_A AT91_PINCTRL_NONE>; > + }; > + }; > + > + ebi { > + pinctrl_ebi_data_lsb: ebi-data-lsb { > + atmel,pins = > + <AT91_PIOD 6 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS) > + AT91_PIOD 7 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS) > + AT91_PIOD 8 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS) > + AT91_PIOD 9 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS) > + AT91_PIOD 10 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS) > + AT91_PIOD 11 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS) > + AT91_PIOD 12 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS) > + AT91_PIOD 13 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)>; > + }; > + > + pinctrl_ebi_addr_nand: ebi-addr-nand { > + atmel,pins = > + <AT91_PIOD 2 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS) > + AT91_PIOD 3 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)>; > + }; > + }; > + > + flexcom { > + pinctrl_flx0_default: flx0-twi { > + atmel,pins = > + <AT91_PIOA 0 AT91_PERIPH_A AT91_PINCTRL_PULL_UP > + AT91_PIOA 1 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; > + }; > + > + pinctrl_flx6_default: flx6-twi { > + atmel,pins = > + <AT91_PIOA 30 AT91_PERIPH_A AT91_PINCTRL_PULL_UP > + AT91_PIOA 31 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; > + }; > + > + pinctrl_flx7_default: flx7-usart { > + atmel,pins = > + <AT91_PIOC 0 AT91_PERIPH_C AT91_PINCTRL_NONE > + AT91_PIOC 1 AT91_PERIPH_C AT91_PINCTRL_NONE>; > + }; > + }; > + > + gpio-keys { > + pinctrl_key_gpio_default: pinctrl-key-gpio { > + atmel,pins = <AT91_PIOA 29 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>; > + }; > + }; > + > + leds { > + pinctrl_gpio_leds: gpio-leds { > + atmel,pins = <AT91_PIOD 17 AT91_PERIPH_GPIO AT91_PINCTRL_NONE > + AT91_PIOD 19 AT91_PERIPH_GPIO AT91_PINCTRL_NONE > + AT91_PIOD 21 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>; > + }; > + }; > + > + macb0 { > + pinctrl_macb0_rmii: macb0-rmii-0 { > + atmel,pins = > + <AT91_PIOB 0 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB0 periph A */ > + AT91_PIOB 1 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB1 periph A */ > + AT91_PIOB 2 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB2 periph A */ > + AT91_PIOB 3 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB3 periph A */ > + AT91_PIOB 4 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB4 periph A */ > + AT91_PIOB 5 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB5 periph A */ > + AT91_PIOB 6 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB6 periph A */ > + AT91_PIOB 7 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB7 periph A */ > + AT91_PIOB 9 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB9 periph A */ > + AT91_PIOB 10 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PB10 periph A */ > + }; > + }; > + > + nand { > + pinctrl_nand_oe_we: nand-oe-we-0 { > + atmel,pins = > + <AT91_PIOD 0 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS) > + AT91_PIOD 1 AT91_PERIPH_A (AT91_PINCTRL_NONE | AT91_PINCTRL_SLEWRATE_DIS)>; > + }; > + > + pinctrl_nand_rb: nand-rb-0 { > + atmel,pins = > + <AT91_PIOD 5 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>; > + }; > + > + pinctrl_nand_cs: nand-cs-0 { > + atmel,pins = > + <AT91_PIOD 4 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>; > + }; > + }; > + > + pwm0 { > + pinctrl_pwm0_0: pwm0-0 { > + atmel,pins = <AT91_PIOB 12 AT91_PERIPH_B AT91_PINCTRL_NONE>; > + }; > + > + pinctrl_pwm0_1: pwm0-1 { > + atmel,pins = <AT91_PIOB 13 AT91_PERIPH_B AT91_PINCTRL_NONE>; > + }; > + > + pinctrl_pwm0_2: pwm0-2 { > + atmel,pins = <AT91_PIOD 16 AT91_PERIPH_B AT91_PINCTRL_NONE>; > + }; > + }; > + > + sdmmc0 { > + pinctrl_sdmmc0_default: sdmmc0 { > + atmel,pins = > + <AT91_PIOA 17 AT91_PERIPH_A (AT91_PINCTRL_DRIVE_STRENGTH_HI) /* PA17 CK periph A with pullup */ > + AT91_PIOA 16 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI) /* PA16 CMD periph A with pullup */ > + AT91_PIOA 15 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI) /* PA15 DAT0 periph A */ > + AT91_PIOA 18 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI) /* PA18 DAT1 periph A with pullup */ > + AT91_PIOA 19 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI) /* PA19 DAT2 periph A with pullup */ > + AT91_PIOA 20 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI)>; /* PA20 DAT3 periph A with pullup */ > + }; > + pinctrl_sdmmc0_cd: sdmmc0-cd { > + atmel,pins = > + <AT91_PIOA 25 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>; > + }; > + }; > + > + sdmmc1 { > + pinctrl_sdmmc1_default: sdmmc1 { > + atmel,pins = > + <AT91_PIOA 13 AT91_PERIPH_B (AT91_PINCTRL_DRIVE_STRENGTH_HI) /* PA13 CK periph B */ > + AT91_PIOA 12 AT91_PERIPH_B (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI) /* PA12 CMD periph B with pullup */ > + AT91_PIOA 11 AT91_PERIPH_B (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI) /* PA11 DAT0 periph B with pullup */ > + AT91_PIOA 2 AT91_PERIPH_B (AT91_PINCTRL_PULL_UP | Please keep 1 space b/w AT91_PIOA and the number, e.g. "AT91_PIOA 2" as some may search in the file for the presence of this pin on other IPs. I haven't checked other pinctrl definitions for the rest of IPs, can you please handle them? AT91_PINCTRL_DRIVE_STRENGTH_HI) /* PA2 DAT1 periph B with pullup */ > + AT91_PIOA 3 AT91_PERIPH_B (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI) /* PA3 DAT2 periph B with pullup */ > + AT91_PIOA 4 AT91_PERIPH_B (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI)>; /* PA4 DAT3 periph B with pullup */ > + }; > + }; > + > + usb0 { > + pinctrl_usba_vbus: usba-vbus { > + atmel,pins = <AT91_PIOA 27 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>; > + }; > + }; > + > + usb1 { > + pinctrl_usb_default: usb-default { > + atmel,pins = <AT91_PIOD 18 AT91_PERIPH_GPIO AT91_PINCTRL_NONE > + AT91_PIOD 15 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>; > + }; > + }; > +}; /* pinctrl */ > + > +&pwm0 { > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_pwm0_0 &pinctrl_pwm0_1 &pinctrl_pwm0_2>; > + status = "okay"; > +}; > + > +&sdmmc0 { > + bus-width = <4>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_sdmmc0_default &pinctrl_sdmmc0_cd>; > + cd-gpios = <&pioA 25 GPIO_ACTIVE_LOW>; > + disable-wp; > + status = "okay"; > +}; > + > +&sdmmc1 { > + bus-width = <4>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_sdmmc1_default>; > + status = "disabled"; > +}; Is this disabled with a reason? I see there is no conflict with other enabled IPs on this board. > + > +&shutdown_controller { > + debounce-delay-us = <976>; > + status = "okay"; > + > + input@0 { > + reg = <0>; > + }; > +}; > + > +&tcb0 { > + timer0: timer@0 { > + compatible = "atmel,tcb-timer"; > + reg = <0>; > + }; > + > + timer1: timer@1 { > + compatible = "atmel,tcb-timer"; > + reg = <1>; > + }; > +}; > + > +&usb0 { > + atmel,vbus-gpio = <&pioA 27 GPIO_ACTIVE_HIGH>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_usba_vbus>; > + status = "okay"; > +}; > + > +&usb1 { > + num-ports = <3>; > + atmel,vbus-gpio = <0 > + &pioD 18 GPIO_ACTIVE_HIGH > + &pioD 15 GPIO_ACTIVE_HIGH>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_usb_default>; > + status = "okay"; > +}; > + > +&usb2 { > + status = "okay"; > +}; > + > +&watchdog { > + status = "okay"; > +};