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Message-ID: <14d628cf-a40c-11e6-7743-e3ba3bd8aa2d@tuxon.dev>
Date: Wed, 2 Aug 2023 07:40:14 +0300
From: claudiu beznea <claudiu.beznea@...on.dev>
To: Mihai Sain <mihai.sain@...rochip.com>, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
nicolas.ferre@...rochip.com, alexandre.belloni@...tlin.com,
claudiu.beznea@...rochip.com, andre.przywara@....com,
andrei.simion@...rochip.com, jerry.ray@...rochip.com,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Cc: cristian.birsan@...rochip.com
Subject: Re: [PATCH 2/2] ARM: dts: at91: sama5d29_curiosity: Add device tree
for sama5d29_curiosity board
On 01.08.2023 14:11, Mihai Sain wrote:
> Add initial device tree file for sama5d29_curiosity board.
>
> Signed-off-by: Mihai Sain <mihai.sain@...rochip.com>
> ---
> arch/arm/boot/dts/microchip/Makefile | 2 +
> .../dts/microchip/at91-sama5d29_curiosity.dts | 706 ++++++++++++++++++
> 2 files changed, 708 insertions(+)
> create mode 100644 arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts
>
> diff --git a/arch/arm/boot/dts/microchip/Makefile b/arch/arm/boot/dts/microchip/Makefile
> index 31e03747cdf4..efde9546c8f4 100644
> --- a/arch/arm/boot/dts/microchip/Makefile
> +++ b/arch/arm/boot/dts/microchip/Makefile
> @@ -4,6 +4,7 @@ DTC_FLAGS_at91-sam9x60_curiosity := -@
> DTC_FLAGS_at91-sam9x60ek := -@
> DTC_FLAGS_at91-sama5d27_som1_ek := -@
> DTC_FLAGS_at91-sama5d27_wlsom1_ek := -@
> +DTC_FLAGS_at91-sama5d29_curiosity := -@
> DTC_FLAGS_at91-sama5d2_icp := -@
> DTC_FLAGS_at91-sama5d2_ptc_ek := -@
> DTC_FLAGS_at91-sama5d2_xplained := -@
> @@ -64,6 +65,7 @@ dtb-$(CONFIG_SOC_SAM_V7) += \
> at91-nattis-2-natte-2.dtb \
> at91-sama5d27_som1_ek.dtb \
> at91-sama5d27_wlsom1_ek.dtb \
> + at91-sama5d29_curiosity.dtb \
> at91-sama5d2_icp.dtb \
> at91-sama5d2_ptc_ek.dtb \
> at91-sama5d2_xplained.dtb \
> diff --git a/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts
> new file mode 100644
> index 000000000000..17af10446dac
> --- /dev/null
> +++ b/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts
> @@ -0,0 +1,706 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * at91-sama5d29_curiosity.dts - Device Tree file for SAMA5D29 Curiosity board
> + *
> + * Copyright (C) 2023 Microchip Technology Inc. and its subsidiaries
> + *
> + * Author: Mihai Sain <mihai.sain@...rochip.com>
> + *
> + */
> +/dts-v1/;
> +#include "sama5d29.dtsi"
> +#include "sama5d2-pinfunc.h"
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/mfd/atmel-flexcom.h>
> +
> +/ {
> + model = "Microchip SAMA5D29 Curiosity";
> + compatible = "microchip,sama5d29-curiosity", "atmel,sama5d29", "atmel,sama5d2", "atmel,sama5";
> +
> + aliases {
> + serial0 = &uart0; // debug
> + serial1 = &uart1; // RPi
> + serial2 = &uart3; // mikro BUS 2
> + serial3 = &uart4; // mikro BUS 1
> + serial4 = &uart6; // flx1 Bluetooth
> + i2c0 = &i2c0;
> + i2c1 = &i2c1;
> + };
> +
> + chosen {
> + bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait";
> + stdout-path = "serial0:115200n8";
> + };
> +
> + 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-1 {
> + label = "USER_PB";
> + gpios = <&pioA PIN_PA17 GPIO_ACTIVE_LOW>;
> + linux,code = <KEY_PROG1>;
> + wakeup-source;
> + };
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_led_gpio_default>;
> + status = "okay";
> +
> + red {
> + label = "red";
> + gpios = <&pioA PIN_PA7 GPIO_ACTIVE_HIGH>;
> + };
> +
> + green {
> + label = "green";
> + gpios = <&pioA PIN_PA8 GPIO_ACTIVE_HIGH>;
> + };
> +
> + blue {
> + label = "blue";
> + gpios = <&pioA PIN_PA9 GPIO_ACTIVE_HIGH>;
> + linux,default-trigger = "heartbeat";
> + };
> + };
> +
> + memory@...00000 {
> + device_type = "memory";
> + reg = <0x20000000 0x20000000>;
> + };
> +
> + vdd_1v8: regulator-vqmmc {
> + compatible = "regulator-fixed";
> + regulator-name = "VDD_1V8";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + status = "okay";
No need for status = "okay", it is the default one.
> + };
> +};
> +
> +&adc {
> + vddana-supply = <&vdd_3v3>;
> + vref-supply = <&vdd_3v3>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_adc_default &pinctrl_adtrg_default>;
> + status = "okay";
> +};
> +
> +&can0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_can0_default>;
> + status = "okay";
> +};
> +
> +&can1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_can1_default>;
> + status = "okay";
> +};
> +
> +&flx1 {
> + atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
> + status = "okay";
> +
> + uart6: serial@200 {
> + pinctrl-0 = <&pinctrl_flx1_default>;
> + pinctrl-names = "default";
> + atmel,use-dma-rx;
> + atmel,use-dma-tx;
> + status = "okay";
> + };
> +};
> +
> +&flx4 { /* RPi spi */
> + atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_SPI>;
> + status = "okay";
> +
> + spi6: spi@400 {
> + dmas = <0>, <0>;
> + cs-gpios = <&pioA PIN_PD15 GPIO_ACTIVE_LOW>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_rpi_spi &pinctrl_rpi_spi_cs0>;
> + status = "okay";
> + };
> +
> + spi7: spi@400 {
> + dmas = <0>, <0>;
> + cs-gpios = <&pioA PIN_PD16 GPIO_ACTIVE_LOW>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_rpi_spi &pinctrl_rpi_spi_cs1>;
> + status = "okay";
> + };
Two SPIs on the same flexcom? It looks to me something is wrong here.
> +};
> +
> +&i2c0 {
> + dmas = <0>, <0>;
> + pinctrl-names = "default", "gpio";
> + pinctrl-0 = <&pinctrl_i2c0_default>;
> + pinctrl-1 = <&pinctrl_i2c0_gpio>;
> + sda-gpios = <&pioA PIN_PB31 GPIO_ACTIVE_HIGH>;
> + scl-gpios = <&pioA PIN_PC0 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
> + i2c-sda-hold-time-ns = <350>;
> + status = "okay";
> +
> + mcp16502@5b {
> + compatible = "microchip,mcp16502";
> + reg = <0x5b>;
> + status = "okay";
> + lpm-gpios = <&pioBU 0 GPIO_ACTIVE_LOW>;
> +
> + regulators {
> + vdd_3v3: VDD_IO {
> + regulator-name = "VDD_IO";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-initial-mode = <2>;
> + regulator-allowed-modes = <2>, <4>;
> + regulator-always-on;
> +
> + regulator-state-standby {
> + regulator-on-in-suspend;
> + regulator-mode = <4>;
> + };
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + regulator-mode = <4>;
> + };
> + };
> +
> + vddio_ddr: VDD_DDR {
> + regulator-name = "VDD_DDR";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + regulator-initial-mode = <2>;
> + regulator-allowed-modes = <2>, <4>;
> + regulator-always-on;
> +
> + regulator-state-standby {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <1200000>;
> + regulator-changeable-in-suspend;
> + regulator-mode = <4>;
> + };
> +
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <1200000>;
> + regulator-changeable-in-suspend;
> + regulator-mode = <4>;
> + };
> + };
> +
> + vdd_core: VDD_CORE {
> + regulator-name = "VDD_CORE";
> + regulator-min-microvolt = <1250000>;
> + regulator-max-microvolt = <1250000>;
> + regulator-initial-mode = <2>;
> + regulator-allowed-modes = <2>, <4>;
> + regulator-always-on;
> +
> + regulator-state-standby {
> + regulator-on-in-suspend;
> + regulator-mode = <4>;
> + };
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + regulator-mode = <4>;
> + };
> + };
> +
> + vdd_ddr: VDD_OTHER {
> + regulator-name = "VDD_OTHER";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-initial-mode = <2>;
> + regulator-allowed-modes = <2>, <4>;
> + regulator-always-on;
> +
> + regulator-state-standby {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <1800000>;
> + regulator-changeable-in-suspend;
> + regulator-mode = <4>;
> + };
> +
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <1800000>;
> + regulator-changeable-in-suspend;
> + regulator-mode = <4>;
> + };
> + };
> +
> + LDO1 {
> + regulator-name = "LDO1";
> + regulator-min-microvolt = <2500000>;
> + regulator-max-microvolt = <2500000>;
> + regulator-always-on;
> +
> + regulator-state-standby {
> + regulator-on-in-suspend;
> + };
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + LDO2 {
> + regulator-name = "LDO2";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> +
> + regulator-state-standby {
> + regulator-on-in-suspend;
> + };
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> + };
> + };
> +};
> +
> +&i2c1 {
> + dmas = <0>, <0>;
> + pinctrl-names = "default", "gpio";
> + pinctrl-0 = <&pinctrl_i2c1_default>;
> + i2c-analog-filter;
> + i2c-digital-filter;
> + i2c-digital-filter-width-ns = <35>;
> + pinctrl-1 = <&pinctrl_i2c1_gpio>;
Keep pinctrl-X grouped together.
> + sda-gpios = <&pioA PIN_PD4 GPIO_ACTIVE_HIGH>;
> + scl-gpios = <&pioA PIN_PD5 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
> + status = "okay";
> +};
> +
> +&macb0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_macb0_default &pinctrl_macb0_phy_irq>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + phy-mode = "rmii";
> + status = "disabled";
Should any phy/mdio container be placed here? Also, any reason this node is
disabled?
> +};
> +
> +&pioA {
> + pinctrl_adc_default: adc_default {
> + pinmux = <PIN_PD25__GPIO>,
> + <PIN_PD26__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_adtrg_default: adtrg_default {
> + pinmux = <PIN_PD31__ADTRG>;
> + bias-pull-up;
> + };
> +
> + pinctrl_rpi_spi: rpi_spi {
> + pinmux = <PIN_PD12__FLEXCOM4_IO0>,
> + <PIN_PD13__FLEXCOM4_IO1>,
> + <PIN_PD14__FLEXCOM4_IO2>;
> + bias-disable;
> + };
> +
> + pinctrl_rpi_spi_cs0: rpi_spi_cs0 {
> + pinmux = <PIN_PD15__FLEXCOM4_IO3>;
> + bias-disable;
> + };
> +
> + pinctrl_rpi_spi_cs1: rpi_spi_cs1 {
> + pinmux = <PIN_PD16__FLEXCOM4_IO4>;
> + bias-disable;
> + };
> +
> + pinctrl_spi1_default: spi1_default {
> + pinmux = <PIN_PC1__SPI1_SPCK>,
> + <PIN_PC2__SPI1_MOSI>,
> + <PIN_PC3__SPI1_MISO>;
> + bias-disable;
> + };
> +
> + pinctrl_spi1_cs: spi1_cs {
> + pinmux = <PIN_PC4__SPI1_NPCS0>,
> + <PIN_PC5__SPI1_NPCS1>,
> + <PIN_PC6__SPI1_NPCS2>,
> + <PIN_PC7__SPI1_NPCS3>;
> + bias-disable;
> + };
> +
> + pinctrl_rpi_uart: rpi_uart {
> + pinmux = <PIN_PD2__URXD1>,
> + <PIN_PD3__UTXD1>;
> + bias-disable;
> + };
> +
> + pinctrl_debug_uart: debug_uart {
> + pinmux = <PIN_PB26__URXD0>,
> + <PIN_PB27__UTXD0>;
> + bias-disable;
> + };
> +
> + pinctrl_can0_default: can0_default {
> + pinmux = <PIN_PC10__CANTX0>,
> + <PIN_PC11__CANRX0>;
> + bias-disable;
> + };
> +
> + pinctrl_can1_default: can1_default {
> + pinmux = <PIN_PC26__CANTX1>,
> + <PIN_PC27__CANRX1>;
> + bias-disable;
> + };
> +
> + pinctrl_i2c0_default: i2c0_default {
> + pinmux = <PIN_PB31__TWD0>,
> + <PIN_PC0__TWCK0>;
> + bias-disable;
> + };
> +
> + pinctrl_i2c0_gpio: i2c0_gpio {
> + pinmux = <PIN_PB31__GPIO>,
> + <PIN_PC0__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_i2c1_default: i2c1_default {
> + pinmux = <PIN_PD4__TWD1>,
> + <PIN_PD5__TWCK1>;
> + bias-disable;
> + };
> +
> + pinctrl_i2c1_gpio: i2c1_gpio {
> + pinmux = <PIN_PD4__GPIO>,
> + <PIN_PD5__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_key_gpio_default: key_gpio_default {
> + pinmux = <PIN_PA17__GPIO>;
> + bias-pull-up;
> + };
> +
> + pinctrl_led_gpio_default: led_gpio_default {
> + pinmux = <PIN_PA7__GPIO>,
> + <PIN_PA8__GPIO>,
> + <PIN_PA9__GPIO>;
> + bias-pull-up;
> + };
> +
> + pinctrl_qspi1_default: qspi1_default {
> + pinmux = <PIN_PB5__QSPI1_SCK>,
> + <PIN_PB6__QSPI1_CS>,
> + <PIN_PB7__QSPI1_IO0>,
> + <PIN_PB8__QSPI1_IO1>,
> + <PIN_PB9__QSPI1_IO2>,
> + <PIN_PB10__QSPI1_IO3>;
> + bias-disable;
> + };
> +
> + pinctrl_sdmmc0_default: sdmmc0_default {
> + pinmux = <PIN_PA0__SDMMC0_CK>,
> + <PIN_PA1__SDMMC0_CMD>,
> + <PIN_PA2__SDMMC0_DAT0>,
> + <PIN_PA3__SDMMC0_DAT1>,
> + <PIN_PA4__SDMMC0_DAT2>,
> + <PIN_PA5__SDMMC0_DAT3>,
> + <PIN_PA11__SDMMC0_VDDSEL>,
> + <PIN_PA13__SDMMC0_CD>;
> + bias-disable;
> + };
> +
> + pinctrl_sdmmc1_default: sdmmc1_default {
> + pinmux = <PIN_PA18__SDMMC1_DAT0>,
> + <PIN_PA19__SDMMC1_DAT1>,
> + <PIN_PA20__SDMMC1_DAT2>,
> + <PIN_PA21__SDMMC1_DAT3>,
> + <PIN_PA22__SDMMC1_CK>,
> + <PIN_PA28__SDMMC1_CMD>,
> + <PIN_PA30__SDMMC1_CD>;
> + bias-disable;
> + };
> +
These starting here:
> + pinctrl_mikrobus1_an: mikrobus1_an {
> + pinmux = <PIN_PD25__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_mikrobus1_rst: mikrobus1_rst {
> + pinmux = <PIN_PA16__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_mikrobus1_spi_cs: mikrobus1_spi_cs {
> + pinmux = <PIN_PC4__SPI1_NPCS0>;
> + bias-disable;
> + };
> +
> + pinctrl_mikrobus1_spi: mikrobus1_spi {
> + pinmux = <PIN_PC1__SPI1_SPCK>,
> + <PIN_PC2__SPI1_MOSI>,
> + <PIN_PC3__SPI1_MISO>;
> + bias-disable;
> + };
> +
ending here are not used. Same on mikrobus2
> + pinctrl_mikrobus1_pwm: mikrobus1_pwm {
> + pinmux = <PIN_PA31__PWML0>;
> + bias-disable;
> + };
> +
> + pinctrl_mikrobus1_int: mikrobus1_int {
> + pinmux = <PIN_PB2__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_mikrobus1_uart: mikrobus1_uart {
> + pinmux = <PIN_PB3__URXD4>,
> + <PIN_PB4__UTXD4>;
> + bias-disable;
> + };
Not used
> +
> + pinctrl_mikrobus2_an: mikrobus2_an {
> + pinmux = <PIN_PD26__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_mikrobus2_rst: mikrobus2_rst {
> + pinmux = <PIN_PA16__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_mikrobus2_spi_cs: mikrobus2_spi_cs {
> + pinmux = <PIN_PC5__SPI1_NPCS1>;
> + bias-disable;
> + };
> +
> + pinctrl_mikrobus2_spi: mikrobus2_spi {
> + pinmux = <PIN_PC1__SPI1_SPCK>,
> + <PIN_PC2__SPI1_MOSI>,
> + <PIN_PC3__SPI1_MISO>;
> + bias-disable;
> + };
> +
> + pinctrl_mikrobus2_pwm: mikrobus2_pwm {
> + pinmux = <PIN_PB0__PWMH1>;
> + bias-disable;
> + };
> +
> + pinctrl_mikrobus2_int: mikrobus2_int {
> + pinmux = <PIN_PB1__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_mikrobus2_uart: mikrobus2_uart {
> + pinmux = <PIN_PB11__URXD3>,
> + <PIN_PB12__UTXD3>;
> + bias-disable;
> + };
> +
> + pinctrl_usb_default: usb_default {
> + pinmux = <PIN_PA6__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_usba_vbus: usba_vbus {
> + pinmux = <PIN_PB13__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_macb0_default: macb0_default {
> + pinmux = <PIN_PB14__GTXCK>,
> + <PIN_PB15__GTXEN>,
> + <PIN_PB16__GRXDV>,
> + <PIN_PB17__GRXER>,
> + <PIN_PB18__GRX0>,
> + <PIN_PB19__GRX1>,
> + <PIN_PB20__GTX0>,
> + <PIN_PB21__GTX1>,
> + <PIN_PB22__GMDC>,
> + <PIN_PB23__GMDIO>;
> + bias-disable;
> + };
> +
> + pinctrl_macb0_phy_irq: macb0_phy_irq {
> + pinmux = <PIN_PB24__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_flx1_default: flx1_default {
> + pinmux = <PIN_PA24__FLEXCOM1_IO0>,
> + <PIN_PA23__FLEXCOM1_IO1>,
> + <PIN_PA25__FLEXCOM1_IO3>,
> + <PIN_PA26__FLEXCOM1_IO4>;
> + bias-disable;
> + };
> +};
> +
> +&pwm0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_mikrobus1_pwm &pinctrl_mikrobus2_pwm>;
> + status = "okay";
> +};
> +
> +&qspi1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_qspi1_default>;
> + status = "okay";
> +
> + flash@0 {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "jedec,spi-nor";
> + reg = <0>;
> + spi-max-frequency = <80000000>;
> + spi-tx-bus-width = <4>;
> + spi-rx-bus-width = <4>;
> + m25p,fast-read;
> + label = "atmel_qspi1";
> + status = "okay";
> +
> + at91bootstrap@0 {
> + label = "at91bootstrap";
> + reg = <0x0 0x40000>;
> + };
> +
> + bootloader@...00 {
> + label = "bootloader";
> + reg = <0x40000 0xc0000>;
> + };
> +
> + bootloaderenvred@...000 {
> + label = "bootloader env redundant";
> + reg = <0x100000 0x40000>;
> + };
> +
> + bootloaderenv@...000 {
> + label = "bootloader env";
> + reg = <0x140000 0x40000>;
> + };
> +
> + dtb@...000 {
> + label = "device tree";
> + reg = <0x180000 0x80000>;
> + };
> +
> + kernel@...000 {
> + label = "kernel";
> + reg = <0x200000 0x600000>;
> + };
> + };
> +};
> +
> +&sdmmc0 {
> + bus-width = <4>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_sdmmc0_default>;
> + vmmc-supply = <&vdd_3v3>;
> + vqmmc-supply = <&vdd_1v8>;
> + status = "okay";
> +};
> +
> +&sdmmc1 {
> + bus-width = <4>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_sdmmc1_default>;
> + vqmmc-supply = <&vdd_3v3>;
> + vmmc-supply = <&vdd_3v3>;
> + status = "okay";
> +};
> +
> +&shutdown_controller {
> + debounce-delay-us = <976>;
> + atmel,wakeup-rtc-timer;
> +
> + input@0 {
> + reg = <0>;
> + };
> +};
> +
> +&spi1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_spi1_default &pinctrl_spi1_cs>;
> + status = "okay";
> +};
> +
> +&tcb0 {
> + timer0: timer@0 {
> + compatible = "atmel,tcb-timer";
> + reg = <0>;
> + };
> +
> + timer1: timer@1 {
> + compatible = "atmel,tcb-timer";
> + reg = <1>;
> + };
> +};
> +
> +&uart0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_debug_uart>;
> + atmel,use-dma-rx;
> + atmel,use-dma-tx;
> + status = "okay";
> +};
> +
> +&uart1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_rpi_uart>;
> + atmel,use-dma-rx;
> + atmel,use-dma-tx;
> + status = "okay";
> +};
> +
> +&uart3 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_mikrobus2_uart>;
> + atmel,use-dma-rx;
> + atmel,use-dma-tx;
> + status = "okay";
> +};
> +
> +&uart4 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_mikrobus1_uart>;
> + atmel,use-dma-rx;
> + atmel,use-dma-tx;
> + status = "okay";
> +};
> +
> +&usb0 {
> + atmel,vbus-gpio = <&pioA PIN_PB13 GPIO_ACTIVE_HIGH>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usba_vbus>;
> + status = "okay";
> +};
> +
> +&usb1 {
> + num-ports = <3>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usb_default>;
> + status = "okay";
> +};
> +
> +&watchdog {
> + status = "okay";
> +};
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