Commit 4867caf4 authored by Lokesh Vutla's avatar Lokesh Vutla Committed by Nishanth Menon
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arm64: dts: ti: Add support for AM642 SK 



AM642 StarterKit (SK) board is a low cost, small form factor board
designed for TI’s AM642 SoC. It supports the following interfaces:
* 2 GB LPDDR4 RAM
* x2 Gigabit Ethernet interfaces capable of working in switch and MAC mode
* x1 USB 3.0 Type-A port
* x1 UHS-1 capable µSD card slot
* 2.4/5 GHz WLAN + Bluetooth 4.2 through WL1837
* 512 Mbit OSPI flash
* x2 UART through UART-USB bridge
* XDS110 for onboard JTAG debug using USB
* Temperature sensors, user push buttons and LEDs
* 40-pin Raspberry Pi compatible GPIO header
* 24-pin header for peripherals in MCU island (I2C, UART, SPI, IO)
* 54-pin header for Programmable Realtime Unit (PRU) IO pins
* Interface for remote automation. Includes:
	* power measurement and reset control
	* boot mode change

Add basic support for AM642 SK.

Signed-off-by: default avatarLokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: default avatarVignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: default avatarSekhar Nori <nsekhar@ti.com>
Signed-off-by: default avatarNishanth Menon <nm@ti.com>
Tested-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
Link: https://lore.kernel.org/r/20210226184251.26451-3-lokeshvutla@ti.com
parent bb795cc6

arch/arm64/boot/dts/ti/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -13,3 +13,5 @@ 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



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

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

0 → 100644
+173 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/*

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

 */



/dts-v1/;



#include <dt-bindings/gpio/gpio.h>

#include "k3-am642.dtsi"



/ {

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

	model = "Texas Instruments AM642 SK";



	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;

		};

	};



	vusb_main: fixed-regulator-vusb-main5v0 {

		/* USB MAIN INPUT 5V DC */

		compatible = "regulator-fixed";

		regulator-name = "vusb_main5v0";

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

		regulator-always-on;

		regulator-boot-on;

	};



	vcc_3v3_sys: fixedregulator-vcc-3v3-sys {

		/* output of LP8733xx */

		compatible = "regulator-fixed";

		regulator-name = "vcc_3v3_sys";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		vin-supply = <&vusb_main>;

		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 = <&vcc_3v3_sys>;

		gpio = <&exp1 3 GPIO_ACTIVE_HIGH>;

	};

};



&main_pmx0 {

	main_mmc1_pins_default: main-mmc1-pins-default {

		pinctrl-single,pins = <

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

			AM64X_IOPAD(0x0290, PIN_INPUT, 0) /* (#N/A) MMC1_CLKLB */

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

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

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

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

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

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

		>;

	};



	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 */

		>;

	};

};



&mcu_uart0 {

	status = "disabled";

};



&mcu_uart1 {

	status = "disabled";

};



&main_uart1 {

	/* main_uart1 is reserved for firmware usage */

	status = "reserved";

};



&main_uart2 {

	status = "disabled";

};



&main_uart3 {

	status = "disabled";

};



&main_uart4 {

	status = "disabled";

};



&main_uart5 {

	status = "disabled";

};



&main_uart6 {

	status = "disabled";

};



&mcu_i2c0 {

	status = "disabled";

};



&mcu_i2c1 {

	status = "disabled";

};



&main_i2c1 {

	pinctrl-names = "default";

	pinctrl-0 = <&main_i2c1_pins_default>;

	clock-frequency = <400000>;



	exp1: gpio@70 {

		compatible = "nxp,pca9538";

		reg = <0x70>;

		gpio-controller;

		#gpio-cells = <2>;

		gpio-line-names = "GPIO_CPSW2_RST", "GPIO_CPSW1_RST",

				  "PRU_DETECT", "MMC1_SD_EN",

				  "VPP_LDO_EN", "RPI_PS_3V3_En",

				  "RPI_PS_5V0_En", "RPI_HAT_DETECT";

	};

};



&main_i2c3 {

	status = "disabled";

};



&mcu_spi0 {

	status = "disabled";

};



&mcu_spi1 {

	status = "disabled";

};



&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;

};