iMX8M-CM U-Boot: Difference between revisions
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[[File:imx8m- | [[File:imx8m-cm-top.png|thumb]] | ||
= Overview = | = Overview = | ||
The U-Boot boot-loader is used for low-level initialization and operating system loading. | The U-Boot boot-loader is used for low-level initialization and operating system loading. |
Revision as of 13:52, 7 October 2021
Overview
The U-Boot boot-loader is used for low-level initialization and operating system loading.
Building U-BOOT for i.MX8M-CM
This U-BOOT is based on https://source.codeaurora.org/external/imx/uboot-imx.git, branch imx_v2020.04_5.4.24_2.1.0
Setup the cross compiler and CPU architecture
$ export ARCH=arm64 $ export CROSS_COMPILE=/opt/cross/aarch64-ronetix-linux-10.2/bin/aarch64-ronetix-linux-gnu-
Clone the latest revision of the repo
$ git clone https://github.com/ronetix/u-boot.git u-boot-ronetix --depth=1 -b imx_v2020.04_5.4.24_2.1.0_rnx $ cd u-boot-ronetix
Configure and build
$ make imx8mq_cm_defconfig $ make
Build Results
File Name | Description |
---|---|
u-boot | U-BOOT ELF image used for JTAG debugging |
u-boot-dtb.imx | U-BOOT image with DTB |
Flashing U-BOOT image to a SD card
Replace sdX with the right device name.
$ sudo dd if=u-boot-dtb.imx of=/dev/sdX bs=1k seek=1 conv=fsync
The U-BOOT image should be at address 0x400 on the SD card.