xref: /kernel/linux/linux-6.6/arch/arm/boot/dts/nspire/nspire.dtsi

// SPDX-License-Identifier: GPL-2.0-only
/*
 *  Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
 */

/ {
	#address-cells = <1>;
	#size-cells = <1>;
	interrupt-parent = <&intc>;

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;

		cpu@0 {
			compatible = "arm,arm926ej-s";
			device_type = "cpu";
			reg = <0>;
		};
	};

	bootrom: bootrom@0 {
		reg = <0x00000000 0x80000>;
	};

	sram: sram@a4000000 {
		compatible = "mmio-sram";
		reg = <0xa4000000 0x20000>; /* 128k */
		#address-cells = <1>;
		#size-cells = <1>;
		ranges = <0 0xa4000000 0x20000>;

		sram@0 {
			reg = <0x0 0x20000>;
		};
	};

	timer_clk: timer_clk {
		#clock-cells = <0>;
		compatible = "fixed-clock";
		clock-frequency = <32768>;
	};

	base_clk: base_clk {
		#clock-cells = <0>;
		reg = <0x900b0024 0x4>;
	};

	ahb_clk: ahb_clk {
		#clock-cells = <0>;
		reg = <0x900b0024 0x4>;
		clocks = <&base_clk>;
	};

	apb_pclk: apb_pclk {
		#clock-cells = <0>;
		compatible = "fixed-factor-clock";
		clock-div = <2>;
		clock-mult = <1>;
		clocks = <&ahb_clk>;
	};

	usb_phy: usb_phy {
		compatible = "usb-nop-xceiv";
		#phy-cells = <0>;
	};

	vbus_reg: vbus_reg {
		compatible = "regulator-fixed";

		regulator-name = "USB VBUS output";

		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
	};

	ahb {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		spi: spi@a9000000 {
			reg = <0xa9000000 0x1000>;
		};

		usb0: usb@b0000000 {
			compatible = "lsi,zevio-usb";
			reg = <0xb0000000 0x1000>;
			interrupts = <8>;

			usb-phy = <&usb_phy>;
			vbus-supply = <&vbus_reg>;
		};

		usb1: usb@b4000000 {
			reg = <0xb4000000 0x1000>;
			interrupts = <9>;
			status = "disabled";
		};

		lcd: lcd@c0000000 {
			compatible = "arm,pl111", "arm,primecell";
			reg = <0xc0000000 0x1000>;
			interrupts = <21>;

			/*
			 * We assume the same clock is fed to APB and CLCDCLK.
			 * There is some code to scale the clock down by a factor
			 * 48 for the display so likely the frequency to the
			 * display is 1MHz and the CLCDCLK is 48 MHz.
			 */
			clocks = <&apb_pclk>, <&apb_pclk>;
			clock-names = "clcdclk", "apb_pclk";
		};

		adc: adc@c4000000 {
			reg = <0xc4000000 0x1000>;
			interrupts = <11>;
		};

		tdes: crypto@c8010000 {
			reg = <0xc8010000 0x1000>;
		};

		sha256: crypto@cc000000 {
			reg = <0xcc000000 0x1000>;
		};

		apb@90000000 {
			compatible = "simple-bus";
			#address-cells = <1>;
			#size-cells = <1>;
			clock-ranges;
			ranges;

			gpio: gpio@90000000 {
				compatible = "lsi,zevio-gpio";
				reg = <0x90000000 0x1000>;
				interrupts = <7>;
				gpio-controller;
				#gpio-cells = <2>;
			};

			fast_timer: timer@90010000 {
				reg = <0x90010000 0x1000>;
				interrupts = <17>;
			};

			uart: serial@90020000 {
				reg = <0x90020000 0x1000>;
				interrupts = <1>;
			};

			timer0: timer@900c0000 {
				reg = <0x900c0000 0x1000>;
				clocks = <&timer_clk>, <&timer_clk>,
					 <&timer_clk>;
				clock-names = "timer0clk", "timer1clk",
					      "apb_pclk";
			};

			timer1: timer@900d0000 {
				reg = <0x900d0000 0x1000>;
				interrupts = <19>;
				clocks = <&timer_clk>, <&timer_clk>,
					 <&timer_clk>;
				clock-names = "timer0clk", "timer1clk",
					      "apb_pclk";
			};

			watchdog: watchdog@90060000 {
				compatible = "arm,primecell";
				reg = <0x90060000 0x1000>;
				interrupts = <3>;
			};

			rtc: rtc@90090000 {
				reg = <0x90090000 0x1000>;
				interrupts = <4>;
			};

			misc: misc@900a0000 {
				compatible = "ti,nspire-misc", "syscon", "simple-mfd";
				reg = <0x900a0000 0x1000>;

				reboot {
					compatible = "syscon-reboot";
					offset = <0x08>;
					value = <0x02>;
				};
			};

			pwr: pwr@900b0000 {
				reg = <0x900b0000 0x1000>;
				interrupts = <15>;
			};

			keypad: input@900e0000 {
				compatible = "ti,nspire-keypad";
				reg = <0x900e0000 0x1000>;
				interrupts = <16>;

				scan-interval = <1000>;
				row-delay = <200>;

				clocks = <&apb_pclk>;
			};

			contrast: contrast@900f0000 {
				reg = <0x900f0000 0x1000>;
			};

			led: led@90110000 {
				reg = <0x90110000 0x1000>;
			};
		};
	};
};