U boot x86 software#
There is still plenty of missing features and restrictions, but the functionality is now mature enough to run software like: a subset of relevant protocols (block devices, console, network etc.).a limited number of runtime services (after OS starts).most of boottime services (before OS starts).It defines a set of requirements that the firmware on embedded devices should follow to enable standard OSs installed without customization.Īt the time of writing this article, UEFI U-Boot provides : EBBR is a collective document being developed by the community. To further strengthen interoperability (and hence compatibility with the existing implementation like EDK-II), UEFI U-Boot now reinforces its development goal that it should fully commit and adhere to EBBR (Embedded Base Boot Requirement). It might be worth mentioning that, in the latest release, risc-v is added to a list of supported architectures along with arm and x86.) (At Linaro we focus on the arm ecosystem, but those developments benefit other architectures as well. Linaro participated in this community activity since 2018 and worked together to help improve the functionality as well as the quality. No distributions support it on arm64 or x86.Īccordingly, a huge amount of effort has been devoted on developing UEFI interfaces on top of U-Boot framework since 2016. Remember that grub can support U-Boot’s own APIs but only on arm port. While U-Boot is still popular among embedded world, supporting generic interfaces like UEFI will make it much easier for users to bring a wider range of OS distributions to their platforms with minimized efforts and no customization.
U boot x86 Pc#
It has been the default on PC and server side, so now is on arm64 platforms. UEFI (Unified Extensible Firmware Interface) is the specification developed by UEFI Forum to standardize interfaces between firmware and the OS’s, aiming to replace legacy BIOS on PC architecture.
How does it work and what is it designed to protect you against? UEFI U-Boot
In the last few years, a number of new UEFI interfaces have been brought into U-Boot, and the latest element added is Secure Boot.
U boot x86 update#
In U-Boot, there are multi way to update image into emmc via U-Boot, you can chose any of one easy use for you.U-Boot is a favorite boot loader for embedded devices, supporting a variety of architectures and platforms.
U boot x86 upgrade#
The output b is a its based package including u-boot-nodtb.bin, board.dtb, and trust binaries which can be used directly with upgrade tool.Īndroid boot(boot_android), Rockchip RKIMG boot(boot_rockchip) and LInux distro boot(distro_bootcmd). Note: please copy the trust binary(optee.bin or bl31.elf from rkbin project) to u-boot root directory and rename it to tee.bin(armv7) or bl31.elf(armv8). Get detail at boot option.įor trust support in SPL, we are using FIT image with 'mkimage' cmd in Makefile and its script defined in defconfig: The output including u-boot.bin, spl/u-boot-spl.bin, tpl/u-boot-tpl.bin at this step, and you need to package it with mkimage tool before use with rockchip upagrade tool. In order to support debug symbol in ARM DS-5, you may need add ctags in make command: Make ARCH=arm CROSS_COMPILE=aarch64-linux-gnu. This is common and available for both Upstream U-Boot and Rockchip U-Boot. The output will including pre-loader, trust and u-boot image which is ready to use with rockchip upgrade tool, Make CROSS_COMPILE=arm-linux-gnueabi- menuconfigįor convenience, Rockchip provide a script 'make.sh' to make it easy to get everything before kernel, this script need toolchain and rkbin support. There is also menuconfig to play with settings if you feel like it: You may need to change the U-Boot function/feature support by modify the defconfig file or, Make CROSS_COMPILE=arm-linux-gnueabi- _defconfig When you have determined what you want to build, configure: Note that the latest U-Boot require version gcc-5.0 and later, we recommand to use linaro 6.3.1.įirst you need to choose a correct defconfig for your board
U boot x86 install#
Sudo apt-get install gcc-aarch64-linux-gnu Sudo apt-get install gcc-arm-linux-gnueabi In Ubuntu 14.04, you can use below command to install cross compiler for armv7:
If you haven't done so before, get a suitable toolchain installed and add it to your PATH.
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