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From: Mihai Sain <mihai.sain@microchip.com>
To: <claudiu.beznea@tuxon.dev>, <robh+dt@kernel.org>,
	<krzysztof.kozlowski+dt@linaro.org>, <conor+dt@kernel.org>,
	<nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
	<andre.przywara@arm.com>, <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>
CC: <cristian.birsan@microchip.com>, Mihai Sain <mihai.sain@microchip.com>
Subject: [PATCH 3/3] ARM: dts: microchip: sama7g54_curiosity: Add initial device tree of the board
Date: Tue, 13 Feb 2024 10:56:14 +0200
Message-ID: <20240213085614.26804-4-mihai.sain@microchip.com>
In-Reply-To: <20240213085614.26804-1-mihai.sain@microchip.com>
References: <20240213085614.26804-1-mihai.sain@microchip.com>
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Add initial device tree of the SAMA7G54 Curiosity board.

Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
---
 arch/arm/boot/dts/microchip/Makefile          |   4 +-
 .../dts/microchip/at91-sama7g54_curiosity.dts | 491 ++++++++++++++++++
 2 files changed, 494 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts

diff --git a/arch/arm/boot/dts/microchip/Makefile b/arch/arm/boot/dts/microchip/Makefile
index efde9546c8f4..29b2a788748f 100644
--- a/arch/arm/boot/dts/microchip/Makefile
+++ b/arch/arm/boot/dts/microchip/Makefile
@@ -12,6 +12,7 @@ DTC_FLAGS_at91-sama5d3_eds := -@
 DTC_FLAGS_at91-sama5d3_xplained := -@
 DTC_FLAGS_at91-sama5d4_xplained := -@
 DTC_FLAGS_at91-sama7g5ek := -@
+DTC_FLAGS_at91-sama7g54_curiosity := -@
 dtb-$(CONFIG_SOC_AT91RM9200) += \
 	at91rm9200ek.dtb \
 	mpa1600.dtb
@@ -87,7 +88,8 @@ dtb-$(CONFIG_SOC_SAM_V7) += \
 	at91-sama5d4ek.dtb \
 	at91-vinco.dtb
 dtb-$(CONFIG_SOC_SAMA7G5) += \
-	at91-sama7g5ek.dtb
+	at91-sama7g5ek.dtb \
+	at91-sama7g54_curiosity.dtb
 
 dtb-$(CONFIG_SOC_LAN966) += \
 	lan966x-kontron-kswitch-d10-mmt-6g-2gs.dtb \
diff --git a/arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts
new file mode 100644
index 000000000000..c2955a170658
--- /dev/null
+++ b/arch/arm/boot/dts/microchip/at91-sama7g54_curiosity.dts
@@ -0,0 +1,491 @@
+// 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 <mihai.sain@microchip.com>
+ *
+ */
+/dts-v1/;
+#include "sama7g5-pinfunc.h"
+#include "sama7g5.dtsi"
+#include <dt-bindings/input/input.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";
+
+	chosen {
+		bootargs = "console=ttyS0,115200 root=/dev/mmcblk1p2 rw rootwait";
+		stdout-path = "serial0:115200n8";
+	};
+
+	aliases {
+		serial0 = &uart3;
+		i2c0 = &i2c10;
+	};
+
+	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 = "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>;
+		status = "okay";
+
+		led-red {
+			label = "red";
+			gpios = <&pioA PIN_PD13 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-green {
+			label = "green";
+			gpios = <&pioA PIN_PD14 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-blue {
+			label = "blue";
+			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";
+			status = "okay";
+
+			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";
+
+		adc@1f {
+			compatible = "microchip,pac1934";
+			reg = <0x1f>;
+		};
+
+		eeprom@51 {
+			compatible = "atmel,24c02";
+			reg = <0x51>;
+			pagesize = <16>;
+			size = <256>;
+			status = "okay";
+		};
+
+		mcp16502@5b {
+			compatible = "microchip,mcp16502";
+			reg = <0x5b>;
+			status = "okay";
+
+			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-voltage = <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-voltage = <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-voltage = <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-voltage = <3300000>;
+						regulator-on-in-suspend;
+					};
+
+					regulator-state-mem {
+						regulator-off-in-suspend;
+					};
+				};
+			};
+		};
+	};
+};
+
+&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;
+		status = "okay";
+	};
+};
+
+&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";
+};
+
+&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";
+};
-- 
2.43.0