Commit 38c4a08c authored by Vignesh Raghavendra's avatar Vignesh Raghavendra
Browse files

arm64: dts: ti: Add support for AM62A7-SK 

AM62A StarterKit (SK) board is a low cost, small form factor board
designed for TI’s AM62A7 SoC. It supports the following interfaces:
* 2 GB LPDDR4 RAM
* x1 Gigabit Ethernet interface
* x1 HDMI Port with audio
* x1 Headphone Jack
* x1 USB2.0 Hub with two Type A host and x1 USB Type-C DRP Port
* x1 UHS-1 capable µSD card slot
* M.2 SDIO Wifi + UART slot
* 1Gb OSPI NAND flash
* x4 UART through UART-USB bridge
* XDS110 for onboard JTAG debug using USB
* Temperature sensors, user push buttons and LEDs
* 40-pin User Expansion Connector
* 24-pin header for peripherals in MCU island (I2C, UART, SPI, IO)
* 20-pin header for Programmable Realtime Unit (PRU) IO pins
* 40-pin CSI header

Add basic support for AM62A7-SK.

Schematics: https://www.ti.com/lit/zip/sprr459



Co-developed-by: default avatarBryan Brattlof <bb@ti.com>
Signed-off-by: default avatarBryan Brattlof <bb@ti.com>
Signed-off-by: default avatarVignesh Raghavendra <vigneshr@ti.com>
Tested-by: default avatarDevarsh Thakkar <devarsht@ti.com>
Acked-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220901141328.899100-6-vigneshr@ti.com
parent 5fc6b1b6

arch/arm64/boot/dts/ti/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -23,3 +23,5 @@ dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb 
dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb



dtb-$(CONFIG_ARCH_K3) += k3-am625-sk.dtb



dtb-$(CONFIG_ARCH_K3) += k3-am62a7-sk.dtb

arch/arm64/boot/dts/ti/k3-am62a7-sk.dts

0 → 100644
+223 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/*

 * AM62A SK: https://www.ti.com/lit/zip/sprr459

 *

 * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/

 */



/dts-v1/;



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

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

#include "k3-am62a7.dtsi"



/ {

	compatible =  "ti,am62a7-sk", "ti,am62a7";

	model = "Texas Instruments AM62A7 SK";



	aliases {

		serial2 = &main_uart0;

		mmc1 = &sdhci1;

	};



	chosen {

		stdout-path = "serial2:115200n8";

	};



	memory@80000000 {

		device_type = "memory";

		/* 2G RAM */

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

	};



	reserved-memory {

		#address-cells = <2>;

		#size-cells = <2>;

		ranges;



		secure_tfa_ddr: tfa@9e780000 {

			reg = <0x00 0x9e780000 0x00 0x80000>;

			alignment = <0x1000>;

			no-map;

		};



		secure_ddr: optee@9e800000 {

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

			alignment = <0x1000>;

			no-map;

		};



		wkup_r5fss0_core0_memory_region: r5f-dma-memory@9c900000 {

			compatible = "shared-dma-pool";

			reg = <0x00 0x9c900000 0x00 0x01e00000>;

			no-map;

		};

	};



	vmain_pd: regulator-0 {

		/* TPS25750 PD CONTROLLER OUTPUT */

		compatible = "regulator-fixed";

		regulator-name = "vmain_pd";

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

		regulator-always-on;

		regulator-boot-on;

	};



	vcc_5v0: regulator-1 {

		/* Output of TPS63070 */

		compatible = "regulator-fixed";

		regulator-name = "vcc_5v0";

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

		vin-supply = <&vmain_pd>;

		regulator-always-on;

		regulator-boot-on;

	};



	vcc_3v3_sys: regulator-2 {

		/* output of LM5141-Q1 */

		compatible = "regulator-fixed";

		regulator-name = "vcc_3v3_sys";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		vin-supply = <&vmain_pd>;

		regulator-always-on;

		regulator-boot-on;

	};



	vdd_mmc1: regulator-3 {

		/* TPS22918DBVR */

		compatible = "regulator-fixed";

		regulator-name = "vdd_mmc1";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		regulator-boot-on;

		enable-active-high;

		gpio = <&exp1 3 GPIO_ACTIVE_HIGH>;

	};



	leds {

		compatible = "gpio-leds";

		pinctrl-names = "default";

		pinctrl-0 = <&usr_led_pins_default>;



		led-0 {

			label = "am62a-sk:green:heartbeat";

			gpios = <&main_gpio1 49 GPIO_ACTIVE_HIGH>;

			linux,default-trigger = "heartbeat";

			function = LED_FUNCTION_HEARTBEAT;

			default-state = "off";

		};

	};

};



&main_pmx0 {

	main_uart0_pins_default: main-uart0-pins-default {

		pinctrl-single,pins = <

			AM62AX_IOPAD(0x1c8, PIN_INPUT, 0) /* (D14) UART0_RXD */

			AM62AX_IOPAD(0x1cc, PIN_OUTPUT, 0) /* (E14) UART0_TXD */

		>;

	};



	main_i2c0_pins_default: main-i2c0-pins-default {

		pinctrl-single,pins = <

			AM62AX_IOPAD(0x1e0, PIN_INPUT_PULLUP, 0) /* (B16) I2C0_SCL */

			AM62AX_IOPAD(0x1e4, PIN_INPUT_PULLUP, 0) /* (A16) I2C0_SDA */

		>;

	};



	main_i2c1_pins_default: main-i2c1-pins-default {

		pinctrl-single,pins = <

			AM62AX_IOPAD(0x1e8, PIN_INPUT_PULLUP, 0) /* (B17) I2C1_SCL */

			AM62AX_IOPAD(0x1ec, PIN_INPUT_PULLUP, 0) /* (A17) I2C1_SDA */

		>;

	};



	main_i2c2_pins_default: main-i2c2-pins-default {

		pinctrl-single,pins = <

			AM62AX_IOPAD(0x0b0, PIN_INPUT_PULLUP, 1) /* (K22) GPMC0_CSn2.I2C2_SCL */

			AM62AX_IOPAD(0x0b4, PIN_INPUT_PULLUP, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */

		>;

	};



	main_mmc1_pins_default: main-mmc1-pins-default {

		pinctrl-single,pins = <

			AM62AX_IOPAD(0x23c, PIN_INPUT, 0) /* (A21) MMC1_CMD */

			AM62AX_IOPAD(0x234, PIN_INPUT, 0) /* (B22) MMC1_CLK */

			AM62AX_IOPAD(0x230, PIN_INPUT, 0) /* (A22) MMC1_DAT0 */

			AM62AX_IOPAD(0x22c, PIN_INPUT, 0) /* (B21) MMC1_DAT1 */

			AM62AX_IOPAD(0x228, PIN_INPUT, 0) /* (C21) MMC1_DAT2 */

			AM62AX_IOPAD(0x224, PIN_INPUT, 0) /* (D22) MMC1_DAT3 */

			AM62AX_IOPAD(0x240, PIN_INPUT, 0) /* (D17) MMC1_SDCD */

		>;

	};



	usr_led_pins_default: usr-led-pins-default {

		pinctrl-single,pins = <

			AM62AX_IOPAD(0x244, PIN_OUTPUT, 7) /* (D18) MMC1_SDWP.GPIO1_49 */

		>;

	};

};



&main_i2c0 {

	status = "okay";

	pinctrl-names = "default";

	pinctrl-0 = <&main_i2c0_pins_default>;

	clock-frequency = <400000>;

};



&main_i2c1 {

	status = "okay";

	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_CPSW2_RST", "GPIO_CPSW1_RST",

				   "BT_EN_SOC", "MMC1_SD_EN",

				   "VPP_EN", "EXP_PS_3V3_En",

				   "EXP_PS_5V0_En", "EXP_HAT_DETECT",

				   "GPIO_AUD_RSTn", "GPIO_eMMC_RSTn",

				   "UART1_FET_BUF_EN", "BT_UART_WAKE_SOC",

				   "GPIO_HDMI_RSTn", "CSI_GPIO0",

				   "CSI_GPIO1", "WLAN_ALERTn",

				   "HDMI_INTn", "TEST_GPIO2",

				   "MCASP1_FET_EN", "MCASP1_BUF_BT_EN",

				   "MCASP1_FET_SEL", "UART1_FET_SEL",

				   "PD_I2C_IRQ", "IO_EXP_TEST_LED";

	};

};



&sdhci1 {

	/* SD/MMC */

	status = "okay";

	vmmc-supply = <&vdd_mmc1>;

	pinctrl-names = "default";

	pinctrl-0 = <&main_mmc1_pins_default>;

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

	disable-wp;

};



&main_gpio0 {

	status = "okay";

};



&main_gpio1 {

	status = "okay";

};



&main_gpio_intr {

	status = "okay";

};



&main_uart0 {

	status = "okay";

	pinctrl-names = "default";

	pinctrl-0 = <&main_uart0_pins_default>;

};