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https://github.com/brain-hackers/u-boot-brain
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c88a9ae1fe
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: Lokesh Vutla <lokeshvutla@ti.com>
95 lines
1.9 KiB
Plaintext
95 lines
1.9 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2021 Texas Instruments Incorporated - https://www.ti.com/
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*/
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/dts-v1/;
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#include <dt-bindings/gpio/gpio.h>
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#include "k3-am642.dtsi"
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/ {
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compatible = "ti,am642-sk", "ti,am642";
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model = "Texas Instruments AM642 SK";
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chosen {
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stdout-path = "serial2:115200n8";
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bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000";
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};
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memory@80000000 {
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device_type = "memory";
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/* 2G RAM */
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reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
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};
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reserved-memory {
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#address-cells = <2>;
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#size-cells = <2>;
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ranges;
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secure_ddr: optee@9e800000 {
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reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */
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alignment = <0x1000>;
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no-map;
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};
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};
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};
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&main_pmx0 {
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main_mmc1_pins_default: main-mmc1-pins-default {
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pinctrl-single,pins = <
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AM64X_IOPAD(0x0294, PIN_INPUT, 0) /* (J19) MMC1_CMD */
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AM64X_IOPAD(0x0290, PIN_INPUT, 0) /* (#N/A) MMC1_CLKLB */
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AM64X_IOPAD(0x028c, PIN_INPUT, 0) /* (L20) MMC1_CLK */
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AM64X_IOPAD(0x0288, PIN_INPUT, 0) /* (K21) MMC1_DAT0 */
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AM64X_IOPAD(0x0284, PIN_INPUT, 0) /* (L21) MMC1_DAT1 */
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AM64X_IOPAD(0x0280, PIN_INPUT, 0) /* (K19) MMC1_DAT2 */
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AM64X_IOPAD(0x027c, PIN_INPUT, 0) /* (K18) MMC1_DAT3 */
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AM64X_IOPAD(0x0298, PIN_INPUT, 0) /* (D19) MMC1_SDCD */
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>;
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};
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main_i2c1_pins_default: main-i2c1-pins-default {
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pinctrl-single,pins = <
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AM64X_IOPAD(0x0268, PIN_INPUT_PULLUP, 0) /* (C18) I2C1_SCL */
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AM64X_IOPAD(0x026c, PIN_INPUT_PULLUP, 0) /* (B19) I2C1_SDA */
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>;
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};
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};
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&main_uart1 {
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/* main_uart1 is reserved for firmware usage */
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status = "reserved";
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};
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&main_uart2 {
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status = "disabled";
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};
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&main_uart3 {
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status = "disabled";
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};
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&main_uart4 {
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status = "disabled";
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};
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&main_uart5 {
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status = "disabled";
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};
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&main_uart6 {
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status = "disabled";
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};
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&sdhci1 {
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/* SD/MMC */
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pinctrl-names = "default";
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bus-width = <4>;
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pinctrl-0 = <&main_mmc1_pins_default>;
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ti,driver-strength-ohm = <50>;
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disable-wp;
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};
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