linux-zen-server/arch/arm/boot/dts/armada-385-clearfog-gtr.dtsi

// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
 * Device Tree file for Clearfog GTR machines rev 1.0 (88F6825)
 *
 *  Rabeeh Khoury <rabeeh@solid-run.com>, based on Russell King clearfog work
 */

/*
	SERDES mapping -
	0. SATA1 on CON18, or optionally mini PCIe CON3 - PCIe0
	1. 6141 switch (2.5Gbps capable)
	2. SATA0 on CON17, or optionally mini PCIe CON4 - PCIe1
	3. USB 3.0 Host
	4. mini PCIe CON2 - PCIe2
	5. SFP connector, or optionally SGMII Ethernet 1512 PHY

	USB 2.0 mapping -
	0. USB 2.0 - 0 USB pins header CON12
	1. USB 2.0 - 1 mini PCIe CON2
	2. USB 2.0 - 2 to USB 3.0 connector (used with SERDES #3)

	Pin mapping -
	0,1 - console UART
	2,3 - I2C0 - connected to I2C EEPROM, two temperature sensors,
	      front panel and PSE controller
	4,5 - MDC/MDIO
	6..17 - RGMII
	18 - Topaz switch reset (active low)
	19 - 1512 phy reset
	20 - 1512 phy reset (eth2, optional)
	21,28,37,38,39,40 - SD0
	22 - USB 3.0 current limiter enable (active high)
	24 - SFP TX fault (input active high)
	25 - SFP present (input active low)
	26,27 - I2C1 - connected to SFP
	29 - Fan PWM
	30 - CON4 mini PCIe wifi disable
	31 - CON3 mini PCIe wifi disable
	32 - Fuse programming power toggle (1.8v)
	33 - CON4 mini PCIe reset
	34 - CON2 mini PCIe wifi disable
	35 - CON3 mini PCIe reset
	36 - Rear button (GPIO active low)
	41 - CON1 front panel connector
	42 - Front LED1, or front panel CON1
	43 - Micron L-PBGA 24 ball SPI (1Gb) CS, or TPM SPI CS
	44 - CON2 mini PCIe reset
	45 - TPM PIRQ signal, or front panel CON1
	46 - SFP TX disable
	47 - Control isolation of boot sensitive SAR signals
	48 - PSE reset
	49 - PSE OSS signal
	50 - PSE interrupt
	52 - Front LED2, or front panel
	53 - Front button
	54 - SFP LOS (input active high)
	55 - Fan sense
	56(mosi),57(clk),58(miso) - SPI interface - 32Mb SPI, 1Gb SPI and TPM
	59 - SPI 32Mb W25Q32BVZPIG CS0 chip select (bootable)
*/

/dts-v1/;
#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/leds/common.h>
#include "armada-385.dtsi"

/ {
	compatible = "marvell,armada385", "marvell,armada380";

	aliases {
		/* So that mvebu u-boot can update the MAC addresses */
		ethernet1 = &eth0;
		ethernet2 = &eth1;
		ethernet3 = &eth2;
		i2c0 = &i2c0;
		i2c1 = &i2c1;
	};

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

	memory {
		device_type = "memory";
		reg = <0x00000000 0x10000000>; /* 256 MB */
	};

	reg_3p3v: regulator-3p3v {
		compatible = "regulator-fixed";
		regulator-name = "3P3V";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};

	reg_5p0v: regulator-5p0v {
		compatible = "regulator-fixed";
		regulator-name = "5P0V";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		regulator-always-on;
	};

	v_usb3_con: regulator-v-usb3-con {
		compatible = "regulator-fixed";
		gpio = <&gpio0 22 GPIO_ACTIVE_LOW>;
		pinctrl-names = "default";
		pinctrl-0 = <&cf_gtr_usb3_con_vbus>;
		regulator-max-microvolt = <5000000>;
		regulator-min-microvolt = <5000000>;
		regulator-name = "v_usb3_con";
		vin-supply = <&reg_5p0v>;
		regulator-boot-on;
		regulator-always-on;
	};

	soc {
		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000
			  MBUS_ID(0x01, 0x1d) 0 0xfff00000 0x100000
			  MBUS_ID(0x09, 0x19) 0 0xf1100000 0x10000
			  MBUS_ID(0x09, 0x15) 0 0xf1110000 0x10000
			  MBUS_ID(0x0c, 0x04) 0 0xf1200000 0x100000>;

		internal-regs {

			rtc@a3800 {
				status = "okay";
			};

			i2c@11000 { /* ROM, temp sensor and front panel */
				pinctrl-0 = <&i2c0_pins>;
				pinctrl-names = "default";
				status = "okay";
			};

			i2c@11100 { /* SFP (CON5/CON6) */
				pinctrl-0 = <&cf_gtr_i2c1_pins>;
				pinctrl-names = "default";
				status = "okay";
			};

			pinctrl@18000 {
				cf_gtr_switch_reset_pins: cf-gtr-switch-reset-pins {
					marvell,pins = "mpp18";
					marvell,function = "gpio";
				};

				cf_gtr_usb3_con_vbus: cf-gtr-usb3-con-vbus {
					marvell,pins = "mpp22";
					marvell,function = "gpio";
				};

				cf_gtr_fan_pwm: cf-gtr-fan-pwm {
					marvell,pins = "mpp23";
					marvell,function = "gpio";
				};

				cf_gtr_i2c1_pins: i2c1-pins {
					/* SFP */
					marvell,pins = "mpp26", "mpp27";
					marvell,function = "i2c1";
				};

				cf_gtr_sdhci_pins: cf-gtr-sdhci-pins {
					marvell,pins = "mpp21", "mpp28",
						       "mpp37", "mpp38",
						       "mpp39", "mpp40";
					marvell,function = "sd0";
				};

				cf_gtr_isolation_pins: cf-gtr-isolation-pins {
					marvell,pins = "mpp47";
					marvell,function = "gpio";
				};

				cf_gtr_poe_reset_pins: cf-gtr-poe-reset-pins {
					marvell,pins = "mpp48";
					marvell,function = "gpio";
				};

				cf_gtr_spi1_cs_pins: spi1-cs-pins {
					marvell,pins = "mpp59";
					marvell,function = "spi1";
				};

				cf_gtr_front_button_pins: cf-gtr-front-button-pins {
					marvell,pins = "mpp53";
					marvell,function = "gpio";
				};

				cf_gtr_rear_button_pins: cf-gtr-rear-button-pins {
					marvell,pins = "mpp36";
					marvell,function = "gpio";
				};
			};

			sdhci@d8000 {
				bus-width = <4>;
				no-1-8-v;
				non-removable;
				pinctrl-0 = <&cf_gtr_sdhci_pins>;
				pinctrl-names = "default";
				status = "okay";
				vmmc = <&reg_3p3v>;
				wp-inverted;
			};

			usb@58000 {
				status = "okay";
			};

			usb3@f0000 {
				status = "okay";
			};

			usb3@f8000 {
				vbus-supply = <&v_usb3_con>;
				status = "okay";
			};
		};

		pcie {
			status = "okay";
			/*
			 * The PCIe units are accessible through
			 * the mini-PCIe connectors on the board.
			 */
			pcie@1,0 {
				reset-gpios = <&gpio1 3 GPIO_ACTIVE_LOW>;
				status = "okay";
			};

			pcie@2,0 {
				reset-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
				status = "okay";
			};

			pcie@3,0 {
				reset-gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
				status = "okay";
			};
		};
	};

	sfp0: sfp {
		compatible = "sff,sfp";
		i2c-bus = <&i2c1>;
		los-gpio = <&gpio1 22 GPIO_ACTIVE_HIGH>;
		mod-def0-gpio = <&gpio0 25 GPIO_ACTIVE_LOW>;
		tx-disable-gpio = <&gpio1 14 GPIO_ACTIVE_HIGH>;
	};

	gpio-keys {
		compatible = "gpio-keys";
		pinctrl-0 = <&cf_gtr_rear_button_pins &cf_gtr_front_button_pins>;
		pinctrl-names = "default";

		button-0 {
			label = "Rear Button";
			gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
			linux,can-disable;
			linux,code = <BTN_0>;
		};

		button-1 {
			label = "Front Button";
			gpios = <&gpio1 21 GPIO_ACTIVE_LOW>;
			linux,can-disable;
			linux,code = <BTN_1>;
		};
	};

	gpio-leds {
		compatible = "gpio-leds";

		led1 {
			function = LED_FUNCTION_CPU;
			color = <LED_COLOR_ID_GREEN>;
			gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
		};

		led2 {
			function = LED_FUNCTION_HEARTBEAT;
			color = <LED_COLOR_ID_GREEN>;
			gpios = <&gpio1 20 GPIO_ACTIVE_HIGH>;
		};
	};
};

&bm {
	status = "okay";
};

&bm_bppi {
	status = "okay";
};

&eth0 {
	/* ethernet@70000 */
	pinctrl-0 = <&ge0_rgmii_pins>;
	pinctrl-names = "default";
	phy = <&phy_dedicated>;
	phy-mode = "rgmii-id";
	buffer-manager = <&bm>;
	bm,pool-long = <0>;
	bm,pool-short = <1>;
	status = "okay";
};

&eth1 {
	/* ethernet@30000 */
	bm,pool-long = <2>;
	bm,pool-short = <1>;
	buffer-manager = <&bm>;
	phys = <&comphy1 1>;
	phy-mode = "2500base-x";
	status = "okay";

	fixed-link {
		speed = <2500>;
		full-duplex;
	};
};

&eth2 {
	/* ethernet@34000 */
	bm,pool-long = <3>;
	bm,pool-short = <1>;
	buffer-manager = <&bm>;
	managed = "in-band-status";
	phys = <&comphy5 1>;
	phy-mode = "sgmii";
	sfp = <&sfp0>;
	status = "okay";
};

&mdio {
	pinctrl-names = "default";
	pinctrl-0 = <&mdio_pins>;
	status = "okay";

	phy_dedicated: ethernet-phy@0 {
		/*
		 * Annoyingly, the marvell phy driver configures the LED
		 * register, rather than preserving reset-loaded setting.
		 * We undo that rubbish here.
		 */
		marvell,reg-init = <3 16 0 0x1017>;
		reg = <0>;
	};
};

&uart0 {
	pinctrl-0 = <&uart0_pins>;
	pinctrl-names = "default";
	status = "okay";
};

&spi1 {
	/*
	 * CS0: W25Q32 flash
	 */
	pinctrl-0 = <&spi1_pins &cf_gtr_spi1_cs_pins>;
	pinctrl-names = "default";
	status = "okay";

	flash@0 {
		#address-cells = <1>;
		#size-cells = <0>;
		compatible = "w25q32", "jedec,spi-nor";
		reg = <0>; /* Chip select 0 */
		spi-max-frequency = <3000000>;
		status = "okay";
	};
};

&i2c0 {
	pinctrl-0 = <&i2c0_pins>;
	pinctrl-names = "default";
	status = "okay";

	/* U26 temperature sensor placed near SoC */
	temp1: nct75@4c {
		compatible = "lm75";
		reg = <0x4c>;
	};

	/* U27 temperature sensor placed near RTC battery */
	temp2: nct75@4d {
		compatible = "lm75";
		reg = <0x4d>;
	};

	/* 2Kb eeprom */
	eeprom@53 {
		compatible = "atmel,24c02";
		reg = <0x53>;
	};
};

&ahci0 {
	status = "okay";
};

&ahci1 {
	status = "okay";
};

&gpio0 {
	pinctrl-0 = <&cf_gtr_fan_pwm>;
	pinctrl-names = "default";

	wifi-disable {
		gpio-hog;
		gpios = <30 GPIO_ACTIVE_LOW>, <31 GPIO_ACTIVE_LOW>;
		output-low;
		line-name = "wifi-disable";
	};
};

&gpio1 {
	pinctrl-0 = <&cf_gtr_isolation_pins &cf_gtr_poe_reset_pins>;
	pinctrl-names = "default";

	lte-disable {
		gpio-hog;
		gpios = <2 GPIO_ACTIVE_LOW>;
		output-low;
		line-name = "lte-disable";
	};

	/*
	 * This signal, when asserted, isolates Armada 38x sample at reset pins
	 * from control of external devices. Should be de-asserted after reset.
	 */
	sar-isolation {
		gpio-hog;
		gpios = <15 GPIO_ACTIVE_LOW>;
		output-low;
		line-name = "sar-isolation";
	};

	poe-reset {
		gpio-hog;
		gpios = <16 GPIO_ACTIVE_LOW>;
		output-low;
		line-name = "poe-reset";
	};
};