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Message-ID: <PH8PR11MB68040128F97411E14195D592820BA@PH8PR11MB6804.namprd11.prod.outlook.com>
Date:   Wed, 2 Aug 2023 11:59:11 +0000
From:   <Mihai.Sain@...rochip.com>
To:     <claudiu.beznea@...on.dev>, <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

Hi Claudiu,

Thank you for reviewing the dts.
See bellow my answers.

-----Original Message-----
From: claudiu beznea <claudiu.beznea@...on.dev> 
Sent: Wednesday, August 2, 2023 8:02 AM
To: Mihai Sain - M19926 <Mihai.Sain@...rochip.com>; robh+dt@...nel.org; krzysztof.kozlowski+dt@...aro.org; conor+dt@...nel.org; Nicolas Ferre - M43238 <Nicolas.Ferre@...rochip.com>; alexandre.belloni@...tlin.com; Claudiu Beznea - M18063 <Claudiu.Beznea@...rochip.com>; andre.przywara@....com; Andrei Simion - M76677 <Andrei.Simion@...rochip.com>; Jerry Ray - C33025 <Jerry.Ray@...rochip.com>; devicetree@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org
Cc: Cristian Birsan - M91496 <Cristian.Birsan@...rochip.com>
Subject: Re: [PATCH 2/2] ARM: dts: at91: sama5d29_curiosity: Add device tree for sama5d29_curiosity board

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Hi, Mihai,

Few other comments. See below.

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";
> +     };
> +};
> +
> +&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";
> +     };
> +};
> +
> +&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 {

Dashes in node name, thus VDD-IO (same for the other entires).
I will modify all nodes to use "-".

> +                             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>;
> +     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";
> +};
> +
> +&pioA {
> +     pinctrl_adc_default: adc_default {

Dashes in node name, thus adc-default (same for the other entries).
Sure, I will modify.

> +             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;
> +     };
> +
> +     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;
> +     };
> +
> +     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;
> +     };
> +
> +     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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