~sircmpwn/linux

linux/arch/arm/boot/dts/at91-cosino.dtsi -rw-r--r-- 2.5 KiB
a99d8080 — Linus Torvalds Linux 5.4-rc6 11 months ago
                                                                                
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * at91-cosino.dtsi - Device Tree file for Cosino core module
 *
 * Copyright (C) 2013 - Rodolfo Giometti <giometti@linux.it>
 *			HCE Engineering
 *
 * Derived from at91sam9x5ek.dtsi by:
 *	Copyright (C) 2012 Atmel,
 *	2012 Nicolas Ferre <nicolas.ferre@atmel.com>
 */

#include "at91sam9g35.dtsi"

/ {
	model = "HCE Cosino core module";
	compatible = "hce,cosino", "atmel,at91sam9x5", "atmel,at91sam9";

	chosen {
		bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootfstype=ext3 rootwait";
	};

	memory {
		reg = <0x20000000 0x8000000>;
	};

	clocks {
		slow_xtal {
			clock-frequency = <32768>;
		};

		main_xtal {
			clock-frequency = <12000000>;
		};
	};
};

&adc0 {
	atmel,adc-ts-wires = <4>;
	atmel,adc-ts-pressure-threshold = <10000>;
	status = "okay";
};

&dbgu {
	status = "okay";
};

&ebi {
	pinctrl-0 = <&pinctrl_ebi_addr_nand
		     &pinctrl_ebi_data_0_7>;
	pinctrl-names = "default";
	status = "okay";

	nand-controller {
		pinctrl-0 = <&pinctrl_nand_oe_we
			     &pinctrl_nand_cs
			     &pinctrl_nand_rb>;
		pinctrl-names = "default";
		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 = <4>;
			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 0x80000>;
				};

				ubootenv@c0000 {
					label = "U-Boot Env";
					reg = <0xc0000 0x140000>;
				};

				kernel@200000 {
					label = "kernel";
					reg = <0x200000 0x600000>;
				};

				rootfs@800000 {
					label = "rootfs";
					reg = <0x800000 0x0f800000>;
				};
			};
		};
	};
};

&i2c0 {
	status = "okay";
};

&mmc0 {
	pinctrl-0 = <
		&pinctrl_board_mmc0
		&pinctrl_mmc0_slot0_clk_cmd_dat0
		&pinctrl_mmc0_slot0_dat1_3>;
	status = "okay";

	slot@0 {
		reg = <0>;
		bus-width = <4>;
		cd-gpios = <&pioD 15 GPIO_ACTIVE_HIGH>;
	};
};

&pinctrl {
	mmc0 {
		pinctrl_board_mmc0: mmc0-board {
			atmel,pins =
				<AT91_PIOD 15 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;	/* PD15 gpio CD pin pull up and deglitch */
		};
	};
};

&tcb0 {
	timer@0 {
		compatible = "atmel,tcb-timer";
		reg = <0>;
	};

	timer@1 {
		compatible = "atmel,tcb-timer";
		reg = <1>;
	};
};

&usart0 {
	status = "okay";
};

&watchdog {
	status = "okay";
};