xref: /freebsd-src/sys/contrib/device-tree/src/arm/broadcom/bcm283x.dtsi (revision 7d0873ebb83b19ba1e8a89e679470d885efe12e3)

#include <dt-bindings/pinctrl/bcm2835.h>
#include <dt-bindings/clock/bcm2835.h>
#include <dt-bindings/clock/bcm2835-aux.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/soc/bcm2835-pm.h>

/* firmware-provided startup stubs live here, where the secondary CPUs are
 * spinning.
 */
/memreserve/ 0x00000000 0x00001000;

/* This include file covers the common peripherals and configuration between
 * bcm2835 and bcm2836 implementations, leaving the CPU configuration to
 * bcm2835.dtsi and bcm2836.dtsi.
 */

/ {
	compatible = "brcm,bcm2835";
	model = "BCM2835";
	#address-cells = <1>;
	#size-cells = <1>;

	aliases {
		serial0 = &uart0;
		serial1 = &uart1;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	rmem: reserved-memory {
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		cma: linux,cma {
			compatible = "shared-dma-pool";
			size = <0x4000000>; /* 64MB */
			reusable;
			linux,cma-default;
		};
	};

	thermal-zones {
		cpu_thermal: cpu-thermal {
			polling-delay-passive = <0>;
			polling-delay = <1000>;

			trips {
				cpu-crit {
					temperature = <90000>;
					hysteresis = <0>;
					type = "critical";
				};
			};

			cooling-maps {
			};
		};
	};

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

		system_timer: timer@7e003000 {
			compatible = "brcm,bcm2835-system-timer";
			reg = <0x7e003000 0x1000>;
			interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
			/* This could be a reference to BCM2835_CLOCK_TIMER,
			 * but we don't have the driver using the common clock
			 * support yet.
			 */
			clock-frequency = <1000000>;
		};

		txp: txp@7e004000 {
			compatible = "brcm,bcm2835-txp";
			reg = <0x7e004000 0x20>;
			interrupts = <1 11>;
		};

		clocks: cprman@7e101000 {
			compatible = "brcm,bcm2835-cprman";
			#clock-cells = <1>;
			reg = <0x7e101000 0x2000>;

			/* CPRMAN derives almost everything from the
			 * platform's oscillator.  However, the DSI
			 * pixel clocks come from the DSI analog PHY.
			 */
			clocks = <&clk_osc>,
				<&dsi0 0>, <&dsi0 1>, <&dsi0 2>,
				<&dsi1 0>, <&dsi1 1>, <&dsi1 2>;
		};

		mailbox: mailbox@7e00b880 {
			compatible = "brcm,bcm2835-mbox";
			reg = <0x7e00b880 0x40>;
			interrupts = <0 1>;
			#mbox-cells = <0>;
		};

		gpio: gpio@7e200000 {
			compatible = "brcm,bcm2835-gpio";
			reg = <0x7e200000 0xb4>;
			/*
			 * The GPIO IP block is designed for 3 banks of GPIOs.
			 * Each bank has a GPIO interrupt for itself.
			 * There is an overall "any bank" interrupt.
			 * In order, these are GIC interrupts 17, 18, 19, 20.
			 * Since the BCM2835 only has 2 banks, the 2nd bank
			 * interrupt output appears to be mirrored onto the
			 * 3rd bank's interrupt signal.
			 * So, a bank0 interrupt shows up on 17, 20, and
			 * a bank1 interrupt shows up on 18, 19, 20!
			 */
			interrupts = <2 17>, <2 18>, <2 19>, <2 20>;

			gpio-controller;
			#gpio-cells = <2>;

			interrupt-controller;
			#interrupt-cells = <2>;

			gpio-ranges = <&gpio 0 0 54>;

			/* Defines common pin muxing groups
			 *
			 * While each pin can have its mux selected
			 * for various functions individually, some
			 * groups only make sense to switch to a
			 * particular function together.
			 */
			dpi_gpio0: dpi-gpio0 {
				brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11
					     12 13 14 15 16 17 18 19
					     20 21 22 23 24 25 26 27>;
				brcm,function = <BCM2835_FSEL_ALT2>;
			};
			emmc_gpio22: emmc-gpio22 {
				brcm,pins = <22 23 24 25 26 27>;
				brcm,function = <BCM2835_FSEL_ALT3>;
			};
			emmc_gpio34: emmc-gpio34 {
				brcm,pins = <34 35 36 37 38 39>;
				brcm,function = <BCM2835_FSEL_ALT3>;
				brcm,pull = <BCM2835_PUD_OFF
					     BCM2835_PUD_UP
					     BCM2835_PUD_UP
					     BCM2835_PUD_UP
					     BCM2835_PUD_UP
					     BCM2835_PUD_UP>;
			};
			emmc_gpio48: emmc-gpio48 {
				brcm,pins = <48 49 50 51 52 53>;
				brcm,function = <BCM2835_FSEL_ALT3>;
			};

			gpclk0_gpio4: gpclk0-gpio4 {
				brcm,pins = <4>;
				brcm,function = <BCM2835_FSEL_ALT0>;
			};
			gpclk1_gpio5: gpclk1-gpio5 {
				brcm,pins = <5>;
				brcm,function = <BCM2835_FSEL_ALT0>;
			};
			gpclk1_gpio42: gpclk1-gpio42 {
				brcm,pins = <42>;
				brcm,function = <BCM2835_FSEL_ALT0>;
			};
			gpclk1_gpio44: gpclk1-gpio44 {
				brcm,pins = <44>;
				brcm,function = <BCM2835_FSEL_ALT0>;
			};
			gpclk2_gpio6: gpclk2-gpio6 {
				brcm,pins = <6>;
				brcm,function = <BCM2835_FSEL_ALT0>;
			};
			gpclk2_gpio43: gpclk2-gpio43 {
				brcm,pins = <43>;
				brcm,function = <BCM2835_FSEL_ALT0>;
				brcm,pull = <BCM2835_PUD_OFF>;
			};

			i2c0_gpio0: i2c0-gpio0 {
				brcm,pins = <0 1>;
				brcm,function = <BCM2835_FSEL_ALT0>;
			};
			i2c0_gpio28: i2c0-gpio28 {
				brcm,pins = <28 29>;
				brcm,function = <BCM2835_FSEL_ALT0>;
			};
			i2c0_gpio44: i2c0-gpio44 {
				brcm,pins = <44 45>;
				brcm,function = <BCM2835_FSEL_ALT1>;
			};
			i2c1_gpio2: i2c1-gpio2 {
				brcm,pins = <2 3>;
				brcm,function = <BCM2835_FSEL_ALT0>;
			};
			i2c1_gpio44: i2c1-gpio44 {
				brcm,pins = <44 45>;
				brcm,function = <BCM2835_FSEL_ALT2>;
			};

			jtag_gpio22: jtag-gpio22 {
				brcm,pins = <22 23 24 25 26 27>;
				brcm,function = <BCM2835_FSEL_ALT4>;
			};

			pcm_gpio18: pcm-gpio18 {
				brcm,pins = <18 19 20 21>;
				brcm,function = <BCM2835_FSEL_ALT0>;
			};
			pcm_gpio28: pcm-gpio28 {
				brcm,pins = <28 29 30 31>;
				brcm,function = <BCM2835_FSEL_ALT2>;
			};

			sdhost_gpio48: sdhost-gpio48 {
				brcm,pins = <48 49 50 51 52 53>;
				brcm,function = <BCM2835_FSEL_ALT0>;
			};

			spi0_gpio7: spi0-gpio7 {
				brcm,pins = <7 8 9 10 11>;
				brcm,function = <BCM2835_FSEL_ALT0>;
			};
			spi0_gpio35: spi0-gpio35 {
				brcm,pins = <35 36 37 38 39>;
				brcm,function = <BCM2835_FSEL_ALT0>;
			};
			spi1_gpio16: spi1-gpio16 {
				brcm,pins = <16 17 18 19 20 21>;
				brcm,function = <BCM2835_FSEL_ALT4>;
			};
			spi2_gpio40: spi2-gpio40 {
				brcm,pins = <40 41 42 43 44 45>;
				brcm,function = <BCM2835_FSEL_ALT4>;
			};

			uart0_gpio14: uart0-gpio14 {
				brcm,pins = <14 15>;
				brcm,function = <BCM2835_FSEL_ALT0>;
			};
			/* Separate from the uart0_gpio14 group
			 * because it conflicts with spi1_gpio16, and
			 * people often run uart0 on the two pins
			 * without flow control.
			 */
			uart0_ctsrts_gpio16: uart0-ctsrts-gpio16 {
				brcm,pins = <16 17>;
				brcm,function = <BCM2835_FSEL_ALT3>;
			};
			uart0_ctsrts_gpio30: uart0-ctsrts-gpio30 {
				brcm,pins = <30 31>;
				brcm,function = <BCM2835_FSEL_ALT3>;
				brcm,pull = <BCM2835_PUD_UP BCM2835_PUD_OFF>;
			};
			uart0_gpio32: uart0-gpio32 {
				brcm,pins = <32 33>;
				brcm,function = <BCM2835_FSEL_ALT3>;
				brcm,pull = <BCM2835_PUD_OFF BCM2835_PUD_UP>;
			};
			uart0_gpio36: uart0-gpio36 {
				brcm,pins = <36 37>;
				brcm,function = <BCM2835_FSEL_ALT2>;
			};
			uart0_ctsrts_gpio38: uart0-ctsrts-gpio38 {
				brcm,pins = <38 39>;
				brcm,function = <BCM2835_FSEL_ALT2>;
			};

			uart1_gpio14: uart1-gpio14 {
				brcm,pins = <14 15>;
				brcm,function = <BCM2835_FSEL_ALT5>;
			};
			uart1_ctsrts_gpio16: uart1-ctsrts-gpio16 {
				brcm,pins = <16 17>;
				brcm,function = <BCM2835_FSEL_ALT5>;
			};
			uart1_gpio32: uart1-gpio32 {
				brcm,pins = <32 33>;
				brcm,function = <BCM2835_FSEL_ALT5>;
			};
			uart1_ctsrts_gpio30: uart1-ctsrts-gpio30 {
				brcm,pins = <30 31>;
				brcm,function = <BCM2835_FSEL_ALT5>;
			};
			uart1_gpio40: uart1-gpio40 {
				brcm,pins = <40 41>;
				brcm,function = <BCM2835_FSEL_ALT5>;
			};
			uart1_ctsrts_gpio42: uart1-ctsrts-gpio42 {
				brcm,pins = <42 43>;
				brcm,function = <BCM2835_FSEL_ALT5>;
			};
		};

		uart0: serial@7e201000 {
			compatible = "arm,pl011", "arm,primecell";
			reg = <0x7e201000 0x200>;
			interrupts = <2 25>;
			clocks = <&clocks BCM2835_CLOCK_UART>,
				 <&clocks BCM2835_CLOCK_VPU>;
			clock-names = "uartclk", "apb_pclk";
			arm,primecell-periphid = <0x00241011>;
		};

		sdhost: mmc@7e202000 {
			compatible = "brcm,bcm2835-sdhost";
			reg = <0x7e202000 0x100>;
			interrupts = <2 24>;
			clocks = <&clocks BCM2835_CLOCK_VPU>;
			status = "disabled";
		};

		i2s: i2s@7e203000 {
			compatible = "brcm,bcm2835-i2s";
			reg = <0x7e203000 0x24>;
			clocks = <&clocks BCM2835_CLOCK_PCM>;
			status = "disabled";
		};

		spi: spi@7e204000 {
			compatible = "brcm,bcm2835-spi";
			reg = <0x7e204000 0x200>;
			interrupts = <2 22>;
			clocks = <&clocks BCM2835_CLOCK_VPU>;
			#address-cells = <1>;
			#size-cells = <0>;
			status = "disabled";
		};

		i2c0: i2c@7e205000 {
			compatible = "brcm,bcm2835-i2c";
			reg = <0x7e205000 0x200>;
			interrupts = <2 21>;
			clocks = <&clocks BCM2835_CLOCK_VPU>;
			#address-cells = <1>;
			#size-cells = <0>;
			status = "disabled";
		};

		dpi: dpi@7e208000 {
			compatible = "brcm,bcm2835-dpi";
			reg = <0x7e208000 0x8c>;
			clocks = <&clocks BCM2835_CLOCK_VPU>,
				 <&clocks BCM2835_CLOCK_DPI>;
			clock-names = "core", "pixel";
			status = "disabled";
		};

		dsi0: dsi@7e209000 {
			compatible = "brcm,bcm2835-dsi0";
			reg = <0x7e209000 0x78>;
			interrupts = <2 4>;
			#address-cells = <1>;
			#size-cells = <0>;
			#clock-cells = <1>;

			clocks = <&clocks BCM2835_PLLA_DSI0>,
				 <&clocks BCM2835_CLOCK_DSI0E>,
				 <&clocks BCM2835_CLOCK_DSI0P>;
			clock-names = "phy", "escape", "pixel";

			clock-output-names = "dsi0_byte",
					     "dsi0_ddr2",
					     "dsi0_ddr";

			status = "disabled";
		};

		aux: aux@7e215000 {
			compatible = "brcm,bcm2835-aux";
			#clock-cells = <1>;
			reg = <0x7e215000 0x8>;
			clocks = <&clocks BCM2835_CLOCK_VPU>;
		};

		uart1: serial@7e215040 {
			compatible = "brcm,bcm2835-aux-uart";
			reg = <0x7e215040 0x40>;
			interrupts = <1 29>;
			clocks = <&aux BCM2835_AUX_CLOCK_UART>;
			status = "disabled";
		};

		spi1: spi@7e215080 {
			compatible = "brcm,bcm2835-aux-spi";
			reg = <0x7e215080 0x40>;
			interrupts = <1 29>;
			clocks = <&aux BCM2835_AUX_CLOCK_SPI1>;
			#address-cells = <1>;
			#size-cells = <0>;
			status = "disabled";
		};

		spi2: spi@7e2150c0 {
			compatible = "brcm,bcm2835-aux-spi";
			reg = <0x7e2150c0 0x40>;
			interrupts = <1 29>;
			clocks = <&aux BCM2835_AUX_CLOCK_SPI2>;
			#address-cells = <1>;
			#size-cells = <0>;
			status = "disabled";
		};

		pwm: pwm@7e20c000 {
			compatible = "brcm,bcm2835-pwm";
			reg = <0x7e20c000 0x28>;
			clocks = <&clocks BCM2835_CLOCK_PWM>;
			assigned-clocks = <&clocks BCM2835_CLOCK_PWM>;
			assigned-clock-rates = <10000000>;
			#pwm-cells = <3>;
			status = "disabled";
		};

		sdhci: mmc@7e300000 {
			compatible = "brcm,bcm2835-sdhci";
			reg = <0x7e300000 0x100>;
			interrupts = <2 30>;
			clocks = <&clocks BCM2835_CLOCK_EMMC>;
			status = "disabled";
		};

		hvs@7e400000 {
			compatible = "brcm,bcm2835-hvs";
			reg = <0x7e400000 0x6000>;
			interrupts = <2 1>;
		};

		dsi1: dsi@7e700000 {
			compatible = "brcm,bcm2835-dsi1";
			reg = <0x7e700000 0x8c>;
			interrupts = <2 12>;
			#address-cells = <1>;
			#size-cells = <0>;
			#clock-cells = <1>;

			clocks = <&clocks BCM2835_PLLD_DSI1>,
				 <&clocks BCM2835_CLOCK_DSI1E>,
				 <&clocks BCM2835_CLOCK_DSI1P>;
			clock-names = "phy", "escape", "pixel";

			clock-output-names = "dsi1_byte",
					     "dsi1_ddr2",
					     "dsi1_ddr";

			status = "disabled";
		};

		csi0: csi@7e800000 {
			compatible = "brcm,bcm2835-unicam";
			reg = <0x7e800000 0x800>,
			      <0x7e802000 0x4>;
			reg-names = "unicam", "cmi";
			interrupts = <2 6>;
			brcm,num-data-lanes = <2>;
			status = "disabled";
			port {
			};
		};

		csi1: csi@7e801000 {
			compatible = "brcm,bcm2835-unicam";
			reg = <0x7e801000 0x800>,
			      <0x7e802004 0x4>;
			reg-names = "unicam", "cmi";
			interrupts = <2 7>;
			brcm,num-data-lanes = <4>;
			status = "disabled";
			port {
			};
		};

		i2c1: i2c@7e804000 {
			compatible = "brcm,bcm2835-i2c";
			reg = <0x7e804000 0x1000>;
			interrupts = <2 21>;
			clocks = <&clocks BCM2835_CLOCK_VPU>;
			#address-cells = <1>;
			#size-cells = <0>;
			status = "disabled";
		};

		usb: usb@7e980000 {
			compatible = "brcm,bcm2835-usb";
			reg = <0x7e980000 0x10000>;
			interrupts = <1 9>;
			#address-cells = <1>;
			#size-cells = <0>;
			clocks = <&clk_usb>;
			clock-names = "otg";
			phys = <&usbphy>;
			phy-names = "usb2-phy";
		};
	};

	clocks {
		/* The oscillator is the root of the clock tree. */
		clk_osc: clk-osc {
			compatible = "fixed-clock";
			#clock-cells = <0>;
			clock-output-names = "osc";
			clock-frequency = <19200000>;
		};

		clk_usb: clk-usb {
			compatible = "fixed-clock";
			#clock-cells = <0>;
			clock-output-names = "otg";
			clock-frequency = <480000000>;
		};
	};

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