Template:iMX8M-UBOOT: Difference between revisions
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(use variables for ARCH, CROSS_COMPILE and SEEK) |
(add info about the flash.bin image) |
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==== Setup the cross compiler and CPU architecture ==== | ==== Setup the cross compiler and CPU architecture ==== | ||
$ export ARCH={{#var:ARCH}} | $ export ARCH={{#var:ARCH}} | ||
$ export {{#var:CROSS_COMPILE}} | $ export CROSS_COMPILE={{#var:CROSS_COMPILE}} | ||
==== Clone the latest revision of the repo ==== | ==== Clone the latest revision of the repo ==== | ||
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| style="padding: 5px;"| u-boot-dtb.imx | | style="padding: 5px;"| u-boot-dtb.imx | ||
| style="padding: 5px;"| U-BOOT image with DTB | | style="padding: 5px;"| U-BOOT image with DTB | ||
|- | |||
| style="padding: 5px;"| flash.bin | |||
| style="padding: 5px;"| U-BOOT image with DTB and firmware | |||
|- | |- | ||
|} | |} | ||
Revision as of 10:37, 11 October 2021
Overview
The U-Boot boot-loader is used for low-level initialization and operating system loading.
Building U-BOOT for
This U-BOOT is based on https://source.codeaurora.org/external/imx/uboot-imx.git, branch
Setup the cross compiler and CPU architecture
$ export ARCH= $ export CROSS_COMPILE=
Clone the latest revision of the repo
$ git clone https://github.com/ronetix/u-boot.git u-boot-ronetix --depth=1 -b $ cd u-boot-ronetix
Configure
$ make
Download and build i.MX8M firmware
$ source tools/imx8m_build_firmware.sh
Build
$ make flash.bin
Build Results
| File Name | Description |
|---|---|
| u-boot | U-BOOT ELF image used for JTAG debugging |
| u-boot-dtb.imx | U-BOOT image with DTB |
| flash.bin | U-BOOT image with DTB and firmware |
Flashing U-BOOT image to a SD card
Replace sdX with the right device name.
$ sudo dd if=flash.bin of=/dev/sdX bs=1k seek= conv=fsync