Commit a8e30c9d authored by Horatiu Vultur's avatar Horatiu Vultur Committed by Claudiu Beznea
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ARM: dts: Add support for pcb8385 

Add basic support for pcb8385 [1]. It is a modular board which allows
to add different daughter cards on which there are different PHYs.
This adds support for UART, LEDs and I2C.

[1] https://www.microchip.com/en-us/development-tool/ev83e85a



Signed-off-by: default avatarHoratiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20251208083545.3642168-3-horatiu.vultur@microchip.com


Signed-off-by: default avatarClaudiu Beznea <claudiu.beznea@tuxon.dev>
parent d9802af1

arch/arm/boot/dts/microchip/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -102,4 +102,5 @@ dtb-$(CONFIG_SOC_LAN966) += \ 
	lan966x-kontron-kswitch-d10-mmt-8g.dtb \

	lan966x-pcb8290.dtb \

	lan966x-pcb8291.dtb \

	lan966x-pcb8309.dtb
 
	lan966x-pcb8309.dtb \

	lan966x-pcb8385.dtb

arch/arm/boot/dts/microchip/lan966x-pcb8385.dts

0 → 100644
+131 −0
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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)

/*

 * lan966x-pcb8385.dts - Device Tree file for PCB8385

 */

/dts-v1/;



#include "lan966x.dtsi"

#include "dt-bindings/phy/phy-lan966x-serdes.h"



/ {

	model = "Microchip EVB - LAN9668";

	compatible = "microchip,lan9668-pcb8385", "microchip,lan9668", "microchip,lan966";



	aliases {

		serial0 = &usart3;

	};



	chosen {

		stdout-path = "serial0:115200n8";

	};



	gpio-restart {

		compatible = "gpio-restart";

		gpios = <&gpio 59 GPIO_ACTIVE_LOW>;

		open-source;

		priority = <200>;

	};



	leds {

		compatible = "gpio-leds";



		led-p1-green {

			label = "cu0:green";

			gpios = <&sgpio_out 2 0 GPIO_ACTIVE_LOW>;

			default-state = "off";

		};



		led-p1-yellow {

			label = "cu0:yellow";

			gpios = <&sgpio_out 2 1 GPIO_ACTIVE_LOW>;

			default-state = "off";

		};



		led-p2-green {

			label = "cu1:green";

			gpios = <&sgpio_out 3 0 GPIO_ACTIVE_LOW>;

			default-state = "off";

		};



		led-p2-yellow {

			label = "cu1:yellow";

			gpios = <&sgpio_out 3 1 GPIO_ACTIVE_LOW>;

			default-state = "off";

		};

	};

};



&aes {

	status = "reserved"; /* Reserved by secure OS */

};



&flx0 {

	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;

	status = "okay";

};



&flx3 {

	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;

	status = "okay";

};



&gpio {

	fc0_b_pins: fc0-b-pins {

		/* SCL, SDA */

		pins = "GPIO_25", "GPIO_26";

		function = "fc0_b";

	};



	fc3_b_pins: fc3-b-pins {

		/* RX, TX */

		pins = "GPIO_52", "GPIO_53";

		function = "fc3_b";

	};



	sgpio_a_pins: sgpio-a-pins {

		/* SCK, D0, D1, LD */

		pins = "GPIO_32", "GPIO_33", "GPIO_34", "GPIO_35";

		function = "sgpio_a";

	};

};



&i2c0 {

	pinctrl-0 = <&fc0_b_pins>;

	pinctrl-names = "default";

	dmas = <0>, <0>;

	i2c-analog-filter;

	i2c-digital-filter;

	i2c-digital-filter-width-ns = <35>;

	i2c-sda-hold-time-ns = <1500>;

	status = "okay";



	eeprom@54 {

		compatible = "atmel,24c01";

		reg = <0x54>;

	};



	eeprom@55 {

		compatible = "atmel,24c01";

		reg = <0x55>;

	};

};



&sgpio {

	pinctrl-0 = <&sgpio_a_pins>;

	pinctrl-names = "default";

	microchip,sgpio-port-ranges = <0 3>;

	status = "okay";



	gpio@0 {

		ngpios = <64>;

	};

	gpio@1 {

		ngpios = <64>;

	};

};



&usart3 {

	pinctrl-0 = <&fc3_b_pins>;

	pinctrl-names = "default";

	status = "okay";

};