It can be built on an x86 PC for any of its intended architectures using a.
It is free software released under the terms of the GNU General Public License. U-Boot supports the ext2/3/4 filesystems as well as fat. The bootloader first loads the devicetree, kernel and ramdisk, and then executes the kernel providing it with additional information such as the name of the device holding the root filesystem. a library of standard commands for which documentation is provided on the DENX website. The current name Das U-Boot adds a German definite article, to create a bilingual pun on the classic 1981 German submarine film Das Boot, which takes place on a World War II German U-boat. U-Boot is the bootloader for all i.MX6 devices. conf file, the mender-uboot feature is already on by default. For instance, in your nf: By inheriting the mender-full-ubi class in a Bitbake. I am trying to find documentation for the bootloader (u-boot). Both iMX6 and embedded linux are new technologies for me. Our software platform is going to be embedded linux. Our design is based on Sabre platform (SABRE Platform for Smart DevicesNXP).
The 'MLO' file is provided by U-Boot's Secondary Program Loader (SPL) functionality. Hi, We are using i.MX6 in our custom design. So, a configuration may very well exist for your target already. The package includes a number of preset configurations for quite a few boards. Before you can build U-Boot, you need to configure it for your target. This requires special formatting of the SD card and copying of the 'MLO' file to the SD card. The documentation provided with U-Boot discusses its use of the physical memory of targets. To/from memory address 'addr', skipping bad blocks. Publication Title: U-Boot Bootloader User Guide for the AM4120. To utilize Mender's integration with U-Boot, when building with the Yocto Project you need to enable the mender-uboot feature using MENDERFEATURESENABLE. On Ubuntu: Typical boot process for BeagleBoard using U-Boot includes two U-Boot phases: The BeagleBoard ROM bootloader first loads a file called 'MLO' from the SD card. The binary for the 1st U-Boot stage is referred to as the Secondary Program Loader (SPL) or the MLO. The booting is completed in two consecutive stages by U-Boot binaries.
Read 'size' bytes starting at offset 'off' amazon-freertos arm-trusted-firmware barebox bluez busybox coreboot dpdk glibc grub linux llvm mesa musl ofono op-tee qemu toybox u-boot uclibc-ng zephyr. In AM335x the ROM code serves as the bootstrap loader, sometimes referred to as the Initial Program Loader (IPL) or the Primary Program Loader (PPL). Typing help followed by a command name gives help regarding that particular command: 1 You can get help for U-Boot commands by using the U-Boot help command. Burning boot.img Using A Thumbdrive (U-Disk)Ĭopy the boot.img into a thumbdrive, then plug it into your target device: 1Ĭopy the boot.img to an SD-card, then plug into your target device: 1