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https://github.com/AsahiLinux/u-boot
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42 lines
1.1 KiB
ReStructuredText
42 lines
1.1 KiB
ReStructuredText
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.. SPDX-License-Identifier: GPL-2.0+
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.. sectionauthor:: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Edison
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======
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Build Instructions for U-Boot as main bootloader
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------------------------------------------------
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Simple you can build U-Boot and obtain u-boot.bin::
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$ make edison_defconfig
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$ make all
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Updating U-Boot on Edison
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-------------------------
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By default Intel Edison boards are shipped with preinstalled heavily
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patched U-Boot v2014.04. Though it supports DFU which we may be able to
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use.
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1. Prepare u-boot.bin as described in chapter above. You still need one
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more step (if and only if you have original U-Boot), i.e. run the
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following command::
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$ truncate -s %4096 u-boot.bin
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2. Run your board and interrupt booting to U-Boot console. In the console
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call::
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=> run do_force_flash_os
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3. Wait for few seconds, it will prepare environment variable and runs
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DFU. Run DFU command from the host system::
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$ dfu-util -v -d 8087:0a99 --alt u-boot0 -D u-boot.bin
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4. Return to U-Boot console and following hint. i.e. push Ctrl+C, and
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reset the board::
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=> reset
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