// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* at91-sama7g54_curiosity.dts - Device Tree file for SAMA7G54 Curiosity Board
*
* Copyright (C) 2024 Microchip Technology Inc. and its subsidiaries
*
* Author: Mihai Sain <[email protected]>
*
*/
/dts-v1/;
#include "sama7g5-pinfunc.h"
#include "sama7g5.dtsi"
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/mfd/atmel-flexcom.h>
#include <dt-bindings/pinctrl/at91.h>
/ {
model = "Microchip SAMA7G54 Curiosity";
compatible = "microchip,sama7g54-curiosity", "microchip,sama7g5", "microchip,sama7";
aliases {
serial0 = &uart3;
i2c0 = &i2c10;
};
chosen {
stdout-path = "serial0:115200n8";
};
gpio-keys {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_key_gpio_default>;
button-user {
label = "user-button";
gpios = <&pioA PIN_PD19 GPIO_ACTIVE_LOW>;
linux,code = <KEY_PROG1>;
wakeup-source;
};
};
leds {
compatible = "gpio-leds";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_led_gpio_default>;
led-red {
color = <LED_COLOR_ID_RED>;
function = LED_FUNCTION_POWER;
gpios = <&pioA PIN_PD13 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led-green {
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_BOOT;
gpios = <&pioA PIN_PD14 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
led-blue {
color = <LED_COLOR_ID_BLUE>;
function = LED_FUNCTION_CPU;
gpios = <&pioA PIN_PB15 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "heartbeat";
};
};
memory@60000000 {
device_type = "memory";
reg = <0x60000000 0x10000000>; /* 256 MiB DDR3L-1066 16-bit */
};
};
&adc {
vddana-supply = <&vddout25>;
vref-supply = <&vddout25>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_mikrobus1_an_default &pinctrl_mikrobus2_an_default>;
status = "okay";
};
&cpu0 {
cpu-supply = <&vddcpu>;
};
&dma0 {
status = "okay";
};
&dma1 {
status = "okay";
};
&dma2 {
status = "okay";
};
&ebi {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_nand_default>;
status = "okay";
nand_controller: nand-controller {
status = "okay";
nand@3 {
reg = <0x3 0x0 0x800000>;
atmel,rb = <0>;
nand-bus-width = <8>;
nand-ecc-mode = "hw";
nand-ecc-strength = <8>;
nand-ecc-step-size = <512>;
nand-on-flash-bbt;
label = "nand";
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
at91bootstrap@0 {
label = "nand: at91bootstrap";
reg = <0x0 0x40000>;
};
bootloader@40000 {
label = "nand: u-boot";
reg = <0x40000 0x100000>;
};
bootloaderenv@140000 {
label = "nand: u-boot env";
reg = <0x140000 0x40000>;
};
dtb@180000 {
label = "nand: device tree";
reg = <0x180000 0x80000>;
};
kernel@200000 {
label = "nand: kernel";
reg = <0x200000 0x600000>;
};
rootfs@800000 {
label = "nand: rootfs";
reg = <0x800000 0x1f800000>;
};
};
};
};
};
&flx3 {
atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
status = "okay";
uart3: serial@200 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flx3_default>;
status = "okay";
};
};
&flx10 {
atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
status = "okay";
i2c10: i2c@600 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flx10_default>;
i2c-analog-filter;
i2c-digital-filter;
i2c-digital-filter-width-ns = <35>;
status = "okay";
eeprom@51 {
compatible = "atmel,24c02";
reg = <0x51>;
pagesize = <16>;
size = <256>;
vcc-supply = <&vdd_3v3>;
};
pmic@5b {
compatible = "microchip,mcp16502";
reg = <0x5b>;
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-suspend-microvolt = <3300000>;
regulator-mode = <4>;
};
regulator-state-mem {
regulator-off-in-suspend;
regulator-mode = <4>;
};
};
vddioddr: VDD_DDR {
regulator-name = "VDD_DDR";
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <1350000>;
regulator-initial-mode = <2>;
regulator-allowed-modes = <2>, <4>;
regulator-always-on;
regulator-state-standby {
regulator-on-in-suspend;
regulator-suspend-microvolt = <1350000>;
regulator-mode = <4>;
};
regulator-state-mem {
regulator-on-in-suspend;
regulator-suspend-microvolt = <1350000>;
regulator-mode = <4>;
};
};
vddcore: VDD_CORE {
regulator-name = "VDD_CORE";
regulator-min-microvolt = <1150000>;
regulator-max-microvolt = <1150000>;
regulator-initial-mode = <2>;
regulator-allowed-modes = <2>, <4>;
regulator-always-on;
regulator-state-standby {
regulator-on-in-suspend;
regulator-suspend-microvolt = <1150000>;
regulator-mode = <4>;
};
regulator-state-mem {
regulator-off-in-suspend;
regulator-mode = <4>;
};
};
vddcpu: VDD_OTHER {
regulator-name = "VDD_OTHER";
regulator-min-microvolt = <1050000>;
regulator-max-microvolt = <1250000>;
regulator-initial-mode = <2>;
regulator-allowed-modes = <2>, <4>;
regulator-ramp-delay = <3125>;
regulator-always-on;
regulator-state-standby {
regulator-on-in-suspend;
regulator-suspend-microvolt = <1050000>;
regulator-mode = <4>;
};
regulator-state-mem {
regulator-off-in-suspend;
regulator-mode = <4>;
};
};
vldo1: LDO1 {
regulator-name = "LDO1";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-state-standby {
regulator-suspend-microvolt = <1800000>;
regulator-on-in-suspend;
};
regulator-state-mem {
regulator-off-in-suspend;
};
};
vldo2: LDO2 {
regulator-name = "LDO2";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-state-standby {
regulator-suspend-microvolt = <3300000>;
regulator-on-in-suspend;
};
regulator-state-mem {
regulator-off-in-suspend;
};
};
};
};
};
};
&main_xtal {
clock-frequency = <24000000>;
};
&qspi1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_qspi1_default>;
status = "okay";
flash@0 {
compatible = "jedec,spi-nor";
reg = <0x0>;
spi-max-frequency = <100000000>;
spi-tx-bus-width = <4>;
spi-rx-bus-width = <4>;
m25p,fast-read;
};
};
&pioA {
pinctrl_flx3_default: flx3-default {
pinmux = <PIN_PD16__FLEXCOM3_IO0>,
<PIN_PD17__FLEXCOM3_IO1>;
bias-pull-up;
};
pinctrl_flx10_default: flx10-default {
pinmux = <PIN_PC30__FLEXCOM10_IO0>,
<PIN_PC31__FLEXCOM10_IO1>;
bias-pull-up;
};
pinctrl_key_gpio_default: key-gpio-default {
pinmux = <PIN_PD19__GPIO>;
bias-pull-up;
};
pinctrl_led_gpio_default: led-gpio-default {
pinmux = <PIN_PD13__GPIO>,
<PIN_PD14__GPIO>,
<PIN_PB15__GPIO>;
bias-pull-up;
};
pinctrl_mikrobus1_an_default: mikrobus1-an-default {
pinmux = <PIN_PC15__GPIO>;
bias-disable;
};
pinctrl_mikrobus2_an_default: mikrobus2-an-default {
pinmux = <PIN_PC13__GPIO>;
bias-disable;
};
pinctrl_nand_default: nand-default {
pinmux = <PIN_PD9__D0>,
<PIN_PD10__D1>,
<PIN_PD11__D2>,
<PIN_PC21__D3>,
<PIN_PC22__D4>,
<PIN_PC23__D5>,
<PIN_PC24__D6>,
<PIN_PD2__D7>,
<PIN_PD3__NANDRDY>,
<PIN_PD4__NCS3_NANDCS>,
<PIN_PD5__NWE_NWR0_NANDWE>,
<PIN_PD6__NRD_NANDOE>,
<PIN_PD7__A21_NANDALE>,
<PIN_PD8__A22_NANDCLE>;
bias-disable;
slew-rate = <0>;
};
pinctrl_qspi1_default: qspi1-default {
pinmux = <PIN_PB22__QSPI1_IO3>,
<PIN_PB23__QSPI1_IO2>,
<PIN_PB24__QSPI1_IO1>,
<PIN_PB25__QSPI1_IO0>,
<PIN_PB26__QSPI1_CS>,
<PIN_PB27__QSPI1_SCK>;
bias-pull-up;
slew-rate = <0>;
};
pinctrl_sdmmc0_default: sdmmc0-default {
pinmux = <PIN_PA0__SDMMC0_CK>,
<PIN_PA1__SDMMC0_CMD>,
<PIN_PA2__SDMMC0_RSTN>,
<PIN_PA3__SDMMC0_DAT0>,
<PIN_PA4__SDMMC0_DAT1>,
<PIN_PA5__SDMMC0_DAT2>,
<PIN_PA6__SDMMC0_DAT3>;
bias-pull-up;
slew-rate = <0>;
};
pinctrl_sdmmc1_default: sdmmc1-default {
pinmux = <PIN_PB29__SDMMC1_CMD>,
<PIN_PB30__SDMMC1_CK>,
<PIN_PB31__SDMMC1_DAT0>,
<PIN_PC0__SDMMC1_DAT1>,
<PIN_PC1__SDMMC1_DAT2>,
<PIN_PC2__SDMMC1_DAT3>,
<PIN_PC4__SDMMC1_CD>;
bias-pull-up;
slew-rate = <0>;
};
};
&rtt {
atmel,rtt-rtc-time-reg = <&gpbr 0x0>;
};
/* M.2 slot for wireless card */
&sdmmc0 {
bus-width = <4>;
cd-gpios = <&pioA 31 GPIO_ACTIVE_LOW>;
disable-wp;
sdhci-caps-mask = <0x0 0x00200000>;
vmmc-supply = <&vdd_3v3>;
vqmmc-supply = <&vdd_3v3>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sdmmc0_default>;
status = "okay";
};
/* micro SD socket */
&sdmmc1 {
bus-width = <4>;
disable-wp;
sdhci-caps-mask = <0x0 0x00200000>;
vmmc-supply = <&vdd_3v3>;
vqmmc-supply = <&vdd_3v3>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sdmmc1_default>;
status = "okay";
};
&slow_xtal {
clock-frequency = <32768>;
};
&shdwc {
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>;
};
};
&trng {
status = "okay";
};
&vddout25 {
vin-supply = <&vdd_3v3>;
status = "okay";
};
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