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[linux][PATCH 6/6] ARM: dts: at91: sam9x60_curiosity: Add device tree for sam9x60_curiosity board

Hari Prasath posted 6 patches 3 years, 7 months ago
There is a newer version of this series
[linux][PATCH 6/6] ARM: dts: at91: sam9x60_curiosity: Add device tree for sam9x60_curiosity board
Posted by Hari Prasath 3 years, 7 months ago 
From: Manikandan M <manikandan.m@microchip.com>

Add device tree file for sam9x60_curiosity board.

Signed-off-by: Durai Manickam KR <durai.manickamkr@microchip.com>
Signed-off-by: Manikandan M <manikandan.m@microchip.com>
Signed-off-by: Hari Prasath <Hari.PrasathGE@microchip.com>
---
 .../devicetree/bindings/arm/atmel-at91.yaml   |   6 +
 arch/arm/boot/dts/Makefile                    |   1 +
 arch/arm/boot/dts/at91-sam9x60_curiosity.dts  | 532 ++++++++++++++++++
 3 files changed, 539 insertions(+)
 create mode 100644 arch/arm/boot/dts/at91-sam9x60_curiosity.dts

diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.yaml b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
index 2b7848bb7769..fae3a3090fbd 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.yaml
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
@@ -97,6 +97,12 @@ properties:
           - const: microchip,sam9x60
           - const: atmel,at91sam9
 
+      - description: SAM9X60 Curiosity board
+        items:
+          - const: microchip,sam9x60-curiosity
+          - const: microchip,sam9x60
+          - const: atmel,at91sam9
+
       - description: Nattis v2 board with Natte v2 power board
         items:
           - const: axentia,nattis-2
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 595e870750cd..cd60cda5d187 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..75e6727b5e3a
--- /dev/null
+++ b/arch/arm/boot/dts/at91-sam9x60_curiosity.dts
@@ -0,0 +1,532 @@
+// 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: Manikandan M <manikandan.m@microchip.com>
+ */
+/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>;
+		status = "okay";
+
+		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>;
+		status = "okay";
+
+		red {
+			label = "red";
+			gpios = <&pioD 17 GPIO_ACTIVE_HIGH>;
+		};
+
+		green {
+			label = "green";
+			gpios = <&pioD 19 GPIO_ACTIVE_HIGH>;
+		};
+
+		blue {
+			label = "blue";
+			gpios = <&pioD 21 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	regulators: regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		vdd_1v8: fixed-regulator-vdd_1v8@0 {
+			compatible = "regulator-fixed";
+			regulator-name = "VDD_1V8";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-always-on;
+			status = "okay";
+		};
+
+		vdd_1v15: fixed-regulator-vdd_1v15@1 {
+			compatible = "regulator-fixed";
+			regulator-name = "VDD_1V15";
+			regulator-min-microvolt = <1150000>;
+			regulator-max-microvolt = <1150000>;
+			regulator-always-on;
+			status = "okay";
+		};
+
+		vdd1_3v3: fixed-regulator-vdd1_3v3@2 {
+			compatible = "regulator-fixed";
+			regulator-name = "VDD1_3V3";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+			status = "okay";
+		};
+	};
+};
+
+&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_0_7>;
+	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>;
+			status = "okay";
+		};
+	};
+};
+
+&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 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		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_0_7: ebi-data-lsb-0 {
+			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_data_0_15: ebi-data-msb-0 {
+			atmel,pins =
+				<AT91_PIOD 6 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 7 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 8 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 9 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 10 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 11 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 12 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 13 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 14 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 15 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 16 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 17 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 18 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 19 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 20 AT91_PERIPH_A AT91_PINCTRL_NONE
+				 AT91_PIOD 21 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+		};
+
+		pinctrl_ebi_addr_nand: ebi-addr-0 {
+			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 | 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";
+};
+
+&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";
+};
-- 
2.17.1
Re: [linux][PATCH 6/6] ARM: dts: at91: sam9x60_curiosity: Add device tree for sam9x60_curiosity board
Posted by Claudiu.Beznea@microchip.com 3 years, 7 months ago 
On 07.09.2022 12:20, Hari Prasath wrote:
> From: Manikandan M <manikandan.m@microchip.com>
> 
> Add device tree file for sam9x60_curiosity board.
> 
> Signed-off-by: Durai Manickam KR <durai.manickamkr@microchip.com>
> Signed-off-by: Manikandan M <manikandan.m@microchip.com>

Manikandan's sob tag should come first as he is the initial author.

> Signed-off-by: Hari Prasath <Hari.PrasathGE@microchip.com>
> ---
>  .../devicetree/bindings/arm/atmel-at91.yaml   |   6 +
>  arch/arm/boot/dts/Makefile                    |   1 +
>  arch/arm/boot/dts/at91-sam9x60_curiosity.dts  | 532 ++++++++++++++++++
>  3 files changed, 539 insertions(+)
>  create mode 100644 arch/arm/boot/dts/at91-sam9x60_curiosity.dts
> 
> diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.yaml b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
> index 2b7848bb7769..fae3a3090fbd 100644
> --- a/Documentation/devicetree/bindings/arm/atmel-at91.yaml
> +++ b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
> @@ -97,6 +97,12 @@ properties:
>            - const: microchip,sam9x60
>            - const: atmel,at91sam9
>  
> +      - description: SAM9X60 Curiosity board
> +        items:
> +          - const: microchip,sam9x60-curiosity
> +          - const: microchip,sam9x60
> +          - const: atmel,at91sam9
> +
>        - description: Nattis v2 board with Natte v2 power board
>          items:
>            - const: axentia,nattis-2
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 595e870750cd..cd60cda5d187 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..75e6727b5e3a
> --- /dev/null
> +++ b/arch/arm/boot/dts/at91-sam9x60_curiosity.dts
> @@ -0,0 +1,532 @@
> +// 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: Manikandan M <manikandan.m@microchip.com>
> + */
> +/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>;
> +		status = "okay";

No need for status here, okay is the default one.

> +
> +		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>;
> +		status = "okay";

Ditto

> +
> +		red {
> +			label = "red";
> +			gpios = <&pioD 17 GPIO_ACTIVE_HIGH>;
> +		};
> +
> +		green {
> +			label = "green";
> +			gpios = <&pioD 19 GPIO_ACTIVE_HIGH>;
> +		};
> +
> +		blue {
> +			label = "blue";
> +			gpios = <&pioD 21 GPIO_ACTIVE_HIGH>;
> +			linux,default-trigger = "heartbeat";
> +		};
> +	};
> +
> +	regulators: regulators {
> +		compatible = "simple-bus";
> +		#address-cells = <1>;
> +		#size-cells = <0>;

You can remove the regulators container and simple-bus as this thows
compilation warnings.

> +
> +		vdd_1v8: fixed-regulator-vdd_1v8@0 {

And you can use generic names for regulators: e.g. regulator-0.

> +			compatible = "regulator-fixed";
> +			regulator-name = "VDD_1V8";
> +			regulator-min-microvolt = <1800000>;
> +			regulator-max-microvolt = <1800000>;
> +			regulator-always-on;
> +			status = "okay";
> +		};
> +
> +		vdd_1v15: fixed-regulator-vdd_1v15@1 {
> +			compatible = "regulator-fixed";
> +			regulator-name = "VDD_1V15";
> +			regulator-min-microvolt = <1150000>;
> +			regulator-max-microvolt = <1150000>;
> +			regulator-always-on;
> +			status = "okay";
> +		};
> +
> +		vdd1_3v3: fixed-regulator-vdd1_3v3@2 {
> +			compatible = "regulator-fixed";
> +			regulator-name = "VDD1_3V3";
> +			regulator-min-microvolt = <3300000>;
> +			regulator-max-microvolt = <3300000>;
> +			regulator-always-on;
> +			status = "okay";
> +		};
> +	};

Please keep the entries in ths container alphabetically sorted.

> +};
> +
> +&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_0_7>;
> +	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>;
> +			status = "okay";
> +		};
> +	};
> +};
> +
> +&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 {
> +		#address-cells = <1>;
> +		#size-cells = <0>;

These could be removed.

> +		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 {

No underscores in the names. Same for the rest of pinctrl definitions.

> +			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_0_7: ebi-data-lsb-0 {
> +			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_data_0_15: ebi-data-msb-0 {
> +			atmel,pins =
> +				<AT91_PIOD 6 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 7 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 8 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 9 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 10 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 11 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 12 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 13 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 14 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 15 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 16 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 17 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 18 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 19 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 20 AT91_PERIPH_A AT91_PINCTRL_NONE
> +				 AT91_PIOD 21 AT91_PERIPH_A AT91_PINCTRL_NONE>;
> +		};
> +
> +		pinctrl_ebi_addr_nand: ebi-addr-0 {
> +			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 | 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 needed here as it is disabled? Is it available on the board or it
conflicts with some other peripherals?

> +
> +&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";
> +};
Re: [linux][PATCH 6/6] ARM: dts: at91: sam9x60_curiosity: Add device tree for sam9x60_curiosity board
Posted by Krzysztof Kozlowski 3 years, 7 months ago 
On 07/09/2022 11:20, Hari Prasath wrote:
> From: Manikandan M <manikandan.m@microchip.com>
> 
> Add device tree file for sam9x60_curiosity board.
> 
> Signed-off-by: Durai Manickam KR <durai.manickamkr@microchip.com>
> Signed-off-by: Manikandan M <manikandan.m@microchip.com>
> Signed-off-by: Hari Prasath <Hari.PrasathGE@microchip.com>
> ---
>  .../devicetree/bindings/arm/atmel-at91.yaml   |   6 +

Bindings are separate patches.

>  arch/arm/boot/dts/Makefile                    |   1 +
>  arch/arm/boot/dts/at91-sam9x60_curiosity.dts  | 532 ++++++++++++++++++
>  3 files changed, 539 insertions(+)
>  create mode 100644 arch/arm/boot/dts/at91-sam9x60_curiosity.dts
> 
> diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.yaml b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
> index 2b7848bb7769..fae3a3090fbd 100644
> --- a/Documentation/devicetree/bindings/arm/atmel-at91.yaml
> +++ b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
> @@ -97,6 +97,12 @@ properties:
>            - const: microchip,sam9x60
>            - const: atmel,at91sam9
>  
> +      - description: SAM9X60 Curiosity board
> +        items:
> +          - const: microchip,sam9x60-curiosity
> +          - const: microchip,sam9x60
> +          - const: atmel,at91sam9

This should be rather together with previous entry as an enum.

> +
>        - description: Nattis v2 board with Natte v2 power board
>          items:
>            - const: axentia,nattis-2
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 595e870750cd..cd60cda5d187 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..75e6727b5e3a
> --- /dev/null
> +++ b/arch/arm/boot/dts/at91-sam9x60_curiosity.dts
> @@ -0,0 +1,532 @@
> +// 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: Manikandan M <manikandan.m@microchip.com>
> + */
> +/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 {

No underscores in node names... If you override nodes, do it via label.

> +			clock-frequency = <32768>;
> +		};
> +
> +		main_xtal {
> +			clock-frequency = <24000000>;
> +		};
> +	};
> +
> +	gpio-keys {
> +		compatible = "gpio-keys";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_key_gpio_default>;
> +		status = "okay";

Okay is by 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>;
> +		status = "okay";

Ditto

> +
> +		red {

Does not look like you tested the DTS against bindings. Please run `make
dtbs_check` (see Documentation/devicetree/bindings/writing-schema.rst
for instructions).

You need to fix all warnings in your DTS.
> +			label = "red";
> +			gpios = <&pioD 17 GPIO_ACTIVE_HIGH>;
> +		};
> +
> +		green {
> +			label = "green";
> +			gpios = <&pioD 19 GPIO_ACTIVE_HIGH>;
> +		};
> +
> +		blue {
> +			label = "blue";
> +			gpios = <&pioD 21 GPIO_ACTIVE_HIGH>;
> +			linux,default-trigger = "heartbeat";
> +		};
> +	};
> +
> +	regulators: regulators {
> +		compatible = "simple-bus";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		vdd_1v8: fixed-regulator-vdd_1v8@0 {


No underscores in node names. No prefix "fixed-". This is just a  regulator.

> +			compatible = "regulator-fixed";
> +			regulator-name = "VDD_1V8";
> +			regulator-min-microvolt = <1800000>;
> +			regulator-max-microvolt = <1800000>;
> +			regulator-always-on;
> +			status = "okay";

Really?

> +		};
> +
> +		vdd_1v15: fixed-regulator-vdd_1v15@1 {
> +			compatible = "regulator-fixed";
> +			regulator-name = "VDD_1V15";
> +			regulator-min-microvolt = <1150000>;
> +			regulator-max-microvolt = <1150000>;
> +			regulator-always-on;
> +			status = "okay";
> +		};
> +
> +		vdd1_3v3: fixed-regulator-vdd1_3v3@2 {
> +			compatible = "regulator-fixed";
> +			regulator-name = "VDD1_3V3";
> +			regulator-min-microvolt = <3300000>;
> +			regulator-max-microvolt = <3300000>;
> +			regulator-always-on;
> +			status = "okay";
> +		};
> +	};
> +};
> +
> +&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_0_7>;
> +	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>;
> +			status = "okay";
> +		};
> +	};
> +};
> +
> +&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 {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		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 {

No underscores in node names.



Best regards,
Krzysztof

Patchew 2.1-devel-ea86937

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