What is U-Boot IMX?

05/21/2020 Off By admin

What is U-Boot IMX?

The difference between u-boot.bin and u-boot.imx is the IVT header. That means after u-boot.bin is build, we will also add a IVT header and put it in front of u-boot.bin. This IVT header is for our boot ROM to identify the u-boot’s location & function etc…

What is U-Boot used for?

U-Boot runs a command-line interface on a console or a serial port. Using the CLI, users can load and boot a kernel, possibly changing parameters from the default. There are also commands to read device information, read and write flash memory, download files (kernels, boot images, etc.)

What does U-Boot stand for?

U-boat, German U-boot, abbreviation of Unterseeboot, (“undersea boat”), a German submarine. The destruction of enemy shipping by German U-boats was a spectacular feature of both World Wars I and II.

How compile U-Boot?


  1. Download the sources and decompress the archive into a working directory.
  2. Enter the U-Boot directory.
  3. Configure U-Boot with the following command: make _config.
  4. U-Boot uses a basic make command, with CROSS_COMPILE variable. make CROSS_COMPILE= will compile U-Boot.

Is U-Boot a firmware?

U-Boot bootloader allows you to update the firmware of your device over Ethernet. U-Boot uses the TFTP protocol to get the firmware images from a TFTP server running on your computer and programs them onto the eMMC of the device. The devices look for the firmware files in this folder when performing the update.

How do I turn on early Printk?

Early printk can only be enabled if debug=y. You may want to enable it if you are debbuging code that executes before the console is initialized. Note that selecting this option will limit Xen to a single UART definition.

Do any German U boats still exist?

The German Unterseeboot, or U-boat, was a submarine that appeared seemingly out of nowhere to destroy both military and commercial ships. Despite their prevalence during WWI and WWII, only four U-boats exist today.

What is U-Boot in Linux?

Das U-Boot (“the Universal Boot Loader” or U-Boot) is an open-source bootloader that can be used on ST boards to initialize the platform and load the Linux® kernel.

Who loads U-Boot?

The x-loader loads the U-Boot into memory and transfers control to it. U-Boot is a pretty advanced bootloader that is capable of loading the kernel and ramdisk image from the NAND, SD card, USB drive and even the Ethernet via bootp, DHCP and TFTP. Figure 1 shows the default boot sequence of the BeagleBone Black.