xref: /OK3568_Linux_fs/u-boot/arch/arm/dts/am335x-draco.dtsi (revision 4882a59341e53eb6f0b4789bf948001014eff981)

/*
 * Common support for Siemens Draco SOM (AM335x based)
 *
 * Copyright (C) 2013,2014 - Stefan Roese <sr@denx.de>
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2.  This program is licensed "as is" without any warranty of any
 * kind, whether express or implied.
 */

/ {
	chosen {
		stdout-path = &uart0;
		tick-timer = &timer2;
	};

	memory {
		device_type = "memory";
		reg = <0x80000000 0x08000000>; /* 128 MB */
	};

	ocp {
		uart0: serial@44e09000 {
			pinctrl-names = "default";
			pinctrl-0 = <&uart0_pins>;
			status = "okay";
		};

		i2c0: i2c@44e0b000 {
			pinctrl-names = "default";
			pinctrl-0 = <&i2c0_pins>;

			status = "okay";
			clock-frequency = <400000>;

			eeprom: eeprom@50 {
				compatible = "atmel,24c128";
				reg = <0x50>;
				pagesize = <64>;
			};
		};

		musb: usb@47400000 {
			status = "okay";

			control@44e10620 {
				status = "okay";
			};

			usb-phy@47401300 {
				status = "okay";
			};

			usb-phy@47401b00 {
				status = "okay";
			};

			usb@47401000 {
				status = "okay";
			};

			usb@47401800 {
				status = "okay";
				dr_mode = "host";
			};

			dma-controller@47402000  {
				status = "okay";
			};
		};
	};
};

&am33xx_pinmux {
		i2c0_pins: pinmux_i2c0_pins {
			pinctrl-single,pins = <
				0x188 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_sda.i2c0_sda */
				0x18c (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_scl.i2c0_scl */
			>;
		};

		uart0_pins: pinmux_uart0_pins {
			pinctrl-single,pins = <
				0x170 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart0_rxd.uart0_rxd */
				0x174 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* uart0_txd.uart0_txd */
			>;
		};

		nandflash_pins: nandflash_pins {
			pinctrl-single,pins = <
				0x0 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad0.gpmc_ad0 */
				0x4 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad1.gpmc_ad1 */
				0x8 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad2.gpmc_ad2 */
				0xc (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad3.gpmc_ad3 */
				0x10 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad4.gpmc_ad4 */
				0x14 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad5.gpmc_ad5 */
				0x18 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad6.gpmc_ad6 */
				0x1c (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad7.gpmc_ad7 */
				0x70 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_wait0.gpmc_wait0 */
				0x74 (PIN_INPUT_PULLUP | MUX_MODE7)	/* gpmc_wpn.gpio0_30 */
				0x7c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_csn0.gpmc_csn0  */
				0x90 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_advn_ale.gpmc_advn_ale */
				0x94 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_oen_ren.gpmc_oen_ren */
				0x98 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_wen.gpmc_wen */
				0x9c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_be0n_cle.gpmc_be0n_cle */
			>;
		};
	};


&timer3 {
	status = "disabled";
};

&uart4 {
	status = "disabled";
};

&elm {
	status = "okay";
};

&gpmc {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&nandflash_pins>;

	ranges = <0 0 0x08000000 0x10000000>;	/* CS0: NAND */

	nand@0,0 {
		reg = <0 0 0>; /* CS0, offset 0 */
		nand-bus-width = <8>;
		ti,nand-ecc-opt = "bch8";
		gpmc,device-nand = "true";
		gpmc,device-width = <1>;
		gpmc,sync-clk-ps = <0>;
		gpmc,cs-on-ns = <0>;
		gpmc,cs-rd-off-ns = <44>;
		gpmc,cs-wr-off-ns = <44>;
		gpmc,adv-on-ns = <6>;
		gpmc,adv-rd-off-ns = <34>;
		gpmc,adv-wr-off-ns = <44>;
		gpmc,we-on-ns = <0>;
		gpmc,we-off-ns = <40>;
		gpmc,oe-on-ns = <0>;
		gpmc,oe-off-ns = <54>;
		gpmc,access-ns = <64>;
		gpmc,rd-cycle-ns = <82>;
		gpmc,wr-cycle-ns = <82>;
		gpmc,wait-on-read = "true";
		gpmc,wait-on-write = "true";
		gpmc,bus-turnaround-ns = <0>;
		gpmc,cycle2cycle-delay-ns = <0>;
		gpmc,clk-activation-ns = <0>;
		gpmc,wait-monitoring-ns = <0>;
		gpmc,wr-access-ns = <40>;
		gpmc,wr-data-mux-bus-ns = <0>;

		#address-cells = <1>;
		#size-cells = <1>;
		elm_id = <&elm>;
	};
};

/* disable the RTC node as its not accessible on the draco/dxr2 board */
&rtc {
	status = "disabled";
	ti,hwmods = "disabled";
};