# This is a command added to U-Boot by TS to read the baseboard ID on our # System on Module devicesĮcho $-ts7970. # The most important command is help # This can also be used to see more information on a specific command help i2c I could change the pin type to output by modifying the code and recompiling U-Boot, but actually changing the value using the gpio command didn’t work. I haven’t been able to change its value so far. 4 kernel with the mainline U-Boot, add the following line to boot. I poked around a bit using the helpful i2c U-Boot command and also tried to use the gpio command for BACKLIGHTEN (GPIO1IO10 per schematic). For example: SMDK5250 i2c dev 7 Setting bus to 7 SMDK5250 i2c edid 50 EDID version: 1. strip initial noise) and insert the setenv commands above manually. Your board should then build, but will not work fully since there will be no I2C driver. This mode will also check for a USB mass storage device to use for production purposes. Add a single command to read the EDID information over I2C. If the board does not already use driver model, you need CONFIGDM also. To break into the U-Boot console, press and hold the SW1 button while the unit is being powered up. SF: Detected N25Q64 with page size 256 Bytes, erase size 4 KiB, total 8 MiBīy default the device will boot to SD or eMMC depending on the status of the "SD Boot" jumper on startup. atmega328p gps-tracker atmega328 avr-gcc. On a normal boot the output should be similar to the output below: you should provide ATmega chip with bootloader or preprogrammed chip. U-Boot is a general purpose bootloader that is capable of booting into common Linux distributions, Android, Windows, or custom software OSes. Detailed explanation is given in cmdi2c. U-Boot provides support for loading data from various mediums this allows booting a kernel from SD, eMMC, SATA, NFS, or USB. If you issue i2c in u-boot, it gives you the usage of the command: i2c md chip address.0. The i.MX6 processor loads U-Boot from the on-board 8 MiB SPI flash. + * Foundation, Inc.This platform uses U-Boot as the bootloader to launch the full operating system. + * along with this program if not, write to the Free Software + * You should have received a copy of the GNU General Public License + * GNU General Public License for more details. + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. + * but WITHOUT ANY WARRANTY without even the implied warranty of A tag already exists with the provided branch name. ![]() + * This program is distributed in the hope that it will be useful, + * the License, or (at your option) any later version. + * published by the Free Software Foundation either version 2 of + * modify it under the terms of the GNU General Public License as ![]() + * This program is free software you can redistribute it and/or + * NOTE: 10-bit addresses are NOT supported! + * entity as we do not maintain a userspace/kernel space isolation + * This file merges the userspace headers and applications to a single + * The code originates from the i2c-tools located here: + * This provides i2cdump, i2cdetect, i2cset and i2cget appplications ![]() Test basic communication with slave device using I2C command in u-boot command. u-boot.v2.orig/Documentation/commands.dox 09:53:22.000000000 -0500 Add I2C Mux/Pad Configuration in board specific mux file. Index: u-boot.v2/Documentation/commands.dox This allowsįor device creation for doing i2c ops. U-boot-V2:cmd: add I2C commands - Menon, Nishanth All of help / color / mirror / Atom feed From: Menon, Nishanth
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