Commit 1e6550d3 authored by Dave Gerlach's avatar Dave Gerlach Committed by Nishanth Menon
Browse files

arm64: dts: ti: Add support for AM642 EVM 



The AM642 EValuation Module (EVM) is a board that provides access to
various peripherals available on the AM642 SoC, such as PCIe, USB 2.0,
CPSW Ethernet, ADC, and more.

Introduce support for the AM642 EVM to enable mmc boot, including
enabling UART and I2C on the board.

Signed-off-by: default avatarAswath Govindraju <a-govindraju@ti.com>
Signed-off-by: default avatarFaiz Abbas <faiz_abbas@ti.com>
Signed-off-by: default avatarSuman Anna <s-anna@ti.com>
Signed-off-by: default avatarNishanth Menon <nm@ti.com>
Signed-off-by: default avatarDave Gerlach <d-gerlach@ti.com>
Tested-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: default avatarGrygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/20210226144257.5470-6-d-gerlach@ti.com
parent 943f1723

arch/arm64/boot/dts/ti/Makefile

+3 −1
Original line number Diff line number Diff line
@@ -3,7 +3,7 @@ 
# Make file to build device tree binaries for boards based on

# Texas Instruments Inc processors

#

# Copyright (C) 2016-2020 Texas Instruments Incorporated - https://www.ti.com/

# Copyright (C) 2016-2021 Texas Instruments Incorporated - https://www.ti.com/

#



dtb-$(CONFIG_ARCH_K3) += k3-am654-base-board.dtb
@@ -11,3 +11,5 @@ dtb-$(CONFIG_ARCH_K3) += k3-am654-base-board.dtb 
dtb-$(CONFIG_ARCH_K3) += k3-j721e-common-proc-board.dtb



dtb-$(CONFIG_ARCH_K3) += k3-j7200-common-proc-board.dtb



dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb

arch/arm64/boot/dts/ti/k3-am642-evm.dts

0 → 100644
+246 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/*

 * Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/

 */



/dts-v1/;



#include <dt-bindings/leds/common.h>

#include "k3-am642.dtsi"



/ {

	compatible =  "ti,am642-evm", "ti,am642";

	model = "Texas Instruments AM642 EVM";



	chosen {

		stdout-path = "serial2:115200n8";

		bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000";

	};



	memory@80000000 {

		device_type = "memory";

		/* 2G RAM */

		reg = <0x00000000 0x80000000 0x00000000 0x80000000>;



	};



	reserved-memory {

		#address-cells = <2>;

		#size-cells = <2>;

		ranges;



		secure_ddr: optee@9e800000 {

			reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */

			alignment = <0x1000>;

			no-map;

		};

	};



	evm_12v0: fixedregulator-evm12v0 {

		/* main DC jack */

		compatible = "regulator-fixed";

		regulator-name = "evm_12v0";

		regulator-min-microvolt = <12000000>;

		regulator-max-microvolt = <12000000>;

		regulator-always-on;

		regulator-boot-on;

	};



	vsys_5v0: fixedregulator-vsys5v0 {

		/* output of LM5140 */

		compatible = "regulator-fixed";

		regulator-name = "vsys_5v0";

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

		vin-supply = <&evm_12v0>;

		regulator-always-on;

		regulator-boot-on;

	};



	vsys_3v3: fixedregulator-vsys3v3 {

		/* output of LM5140 */

		compatible = "regulator-fixed";

		regulator-name = "vsys_3v3";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		vin-supply = <&evm_12v0>;

		regulator-always-on;

		regulator-boot-on;

	};



	vdd_mmc1: fixed-regulator-sd {

		/* TPS2051BD */

		compatible = "regulator-fixed";

		regulator-name = "vdd_mmc1";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		regulator-boot-on;

		enable-active-high;

		vin-supply = <&vsys_3v3>;

		gpio = <&exp1 6 GPIO_ACTIVE_HIGH>;

	};



	vddb: fixedregulator-vddb {

		compatible = "regulator-fixed";

		regulator-name = "vddb_3v3_display";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		vin-supply = <&vsys_3v3>;

		regulator-always-on;

		regulator-boot-on;

	};



	leds {

		compatible = "gpio-leds";



		led-0 {

			label = "am64-evm:red:heartbeat";

			gpios = <&exp1 16 GPIO_ACTIVE_HIGH>;

			linux,default-trigger = "heartbeat";

			function = LED_FUNCTION_HEARTBEAT;

			default-state = "off";

		};

	};

};



&main_pmx0 {

	main_mmc1_pins_default: main-mmc1-pins-default {

		pinctrl-single,pins = <

			AM64X_IOPAD(0x0294, PIN_INPUT_PULLUP, 0) /* (J19) MMC1_CMD */

			AM64X_IOPAD(0x028c, PIN_INPUT_PULLDOWN, 0) /* (L20) MMC1_CLK */

			AM64X_IOPAD(0x0288, PIN_INPUT_PULLUP, 0) /* (K21) MMC1_DAT0 */

			AM64X_IOPAD(0x0284, PIN_INPUT_PULLUP, 0) /* (L21) MMC1_DAT1 */

			AM64X_IOPAD(0x0280, PIN_INPUT_PULLUP, 0) /* (K19) MMC1_DAT2 */

			AM64X_IOPAD(0x027c, PIN_INPUT_PULLUP, 0) /* (K18) MMC1_DAT3 */

			AM64X_IOPAD(0x0298, PIN_INPUT_PULLUP, 0) /* (D19) MMC1_SDCD */

			AM64X_IOPAD(0x029c, PIN_INPUT, 0) /* (C20) MMC1_SDWP */

			AM64X_IOPAD(0x0290, PIN_INPUT, 0) /* MMC1_CLKLB */

		>;

	};



	main_uart0_pins_default: main-uart0-pins-default {

		pinctrl-single,pins = <

			AM64X_IOPAD(0x0238, PIN_INPUT, 0) /* (B16) UART0_CTSn */

			AM64X_IOPAD(0x023c, PIN_OUTPUT, 0) /* (A16) UART0_RTSn */

			AM64X_IOPAD(0x0230, PIN_INPUT, 0) /* (D15) UART0_RXD */

			AM64X_IOPAD(0x0234, PIN_OUTPUT, 0) /* (C16) UART0_TXD */

		>;

	};



	main_i2c1_pins_default: main-i2c1-pins-default {

		pinctrl-single,pins = <

			AM64X_IOPAD(0x0268, PIN_INPUT_PULLUP, 0) /* (C18) I2C1_SCL */

			AM64X_IOPAD(0x026c, PIN_INPUT_PULLUP, 0) /* (B19) I2C1_SDA */

		>;

	};

};



&main_uart0 {

	pinctrl-names = "default";

	pinctrl-0 = <&main_uart0_pins_default>;

};



/* main_uart1 is reserved for firmware usage */

&main_uart1 {

	status = "reserved";

};



&main_uart2 {

	status = "disabled";

};



&main_uart3 {

	status = "disabled";

};



&main_uart4 {

	status = "disabled";

};



&main_uart5 {

	status = "disabled";

};



&main_uart6 {

	status = "disabled";

};



&mcu_uart0 {

	status = "disabled";

};



&mcu_uart1 {

	status = "disabled";

};



&main_i2c1 {

	pinctrl-names = "default";

	pinctrl-0 = <&main_i2c1_pins_default>;

	clock-frequency = <400000>;



	exp1: gpio@22 {

		compatible = "ti,tca6424";

		reg = <0x22>;

		gpio-controller;

		#gpio-cells = <2>;

		gpio-line-names = "GPIO_eMMC_RSTn", "CAN_MUX_SEL",

				  "GPIO_CPSW1_RST", "GPIO_RGMII1_RST",

				  "GPIO_RGMII2_RST", "GPIO_PCIe_RST_OUT",

				  "MMC1_SD_EN", "FSI_FET_SEL",

				  "MCAN0_STB_3V3", "MCAN1_STB_3V3",

				  "CPSW_FET_SEL", "CPSW_FET2_SEL",

				  "PRG1_RGMII2_FET_SEL", "TEST_GPIO2",

				  "GPIO_OLED_RESETn", "VPP_LDO_EN",

				  "TEST_LED1", "TP92", "TP90", "TP88",

				  "TP87", "TP86", "TP89", "TP91";

	};



	/* osd9616p0899-10 */

	display@3c {

		compatible = "solomon,ssd1306fb-i2c";

		reg = <0x3c>;

		reset-gpios = <&exp1 14 GPIO_ACTIVE_LOW>;

		vbat-supply = <&vddb>;

		solomon,height = <16>;

		solomon,width = <96>;

		solomon,com-seq;

		solomon,com-invdir;

		solomon,page-offset = <0>;

		solomon,prechargep1 = <2>;

		solomon,prechargep2 = <13>;

	};

};



&mcu_i2c0 {

	status = "disabled";

};



&mcu_i2c1 {

	status = "disabled";

};



&mcu_spi0 {

	status = "disabled";

};



&mcu_spi1 {

	status = "disabled";

};



&sdhci0 {

	/* emmc */

	bus-width = <8>;

	non-removable;

	ti,driver-strength-ohm = <50>;

	disable-wp;

};



&sdhci1 {

	/* SD/MMC */

	vmmc-supply = <&vdd_mmc1>;

	pinctrl-names = "default";

	bus-width = <4>;

	pinctrl-0 = <&main_mmc1_pins_default>;

	ti,driver-strength-ohm = <50>;

	disable-wp;

};