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U boot release date1/13/2024 The effort to address these concerns began in 1998 and was initially called Intel Boot Initiative. BIOS limitations (such as 16-bit real mode, 1MB addressable memory space, assembly language programming, and PC AT hardware) had become too restrictive for the larger server platforms Itanium was targeting. The original motivation for EFI came during early development of the first Intel–HP Itanium systems in the mid-1990s. UEFI is independent of platform and programming language, but C is used for the reference implementation TianoCore EDKII. In 2005, UEFI deprecated EFI 1.10 (the final release of EFI). Some of the EFI's practices and data formats mirror those of Microsoft Windows. Intel developed the original Extensible Firmware Interface ( EFI) specifications. UEFI replaces the BIOS which was present in the boot ROM of all personal computers that are IBM PC-compatible, although it can provide backwards compatibility with the BIOS using CSM booting. Examples of firmware that implement these specifications are AMI Aptio, Phoenix SecureCore Tiano, TianoCore EDK II and InsydeH2O. They define the architecture of the platform firmware used for booting and its interface for interaction with the operating system. UEFI ( Unified Extensible Firmware Interface) is a set of specifications written by the UEFI Forum. They can use different I/O protocols, but SPI is the most common. 2018 (sha: 7b1691407 04/2019 Build Date) u-boot-ubl.The UEFI implementation is usually stored on a NOR-based EEPROM that is located on the mainboard.Check the repository for latest version history (build it yourself to ensure the latest-and-greatest.). We've made a couple of images available here for convenience only. The u-Boot images are included in the board support packages. If successful, there should be a u-boot.bin file (usable with the serial downloader tool for a dead board alongside the First Stage User Boot Loader) as well as a u-boot-ubl.bin file (suitable for reprogramming u-Boot from u-Boot). #bash> alias makearm="make ARCH=arm CROSS_COMPILE=arm-angstrom-linux-gnueabi-" #bash> source /usr/local/oecore-i686/environment-setup-armv5te-angstrom-linux-gnueabi In order to build the u-boot, you need to have first installed a valid version of the GCC Toolchain. #bash> alias makearm="make ARCH=arm CROSS_COMPILE=arm-criticallink-linux-gnueabi-" #bash> source /opt/criticallink/mityomapl138_20170818/environment-setup-arm926ejste-criticallink-linux-gnueabi Go to the files section then download and install the latest MDK. Now you are ready to configure and compile the u-boot image. To compile u-boot you will need to install the ARM cross tools (which get generated from the open-embedded Cross Tools step, or you may use tools from places like CodeSourcery) and ensure that the gcc ports are available on your $PATH. Please note that if you intend to make changes, etc., you will need to become moderately familiar with the git tool (see Information on git). This will download the repository and create a "master" branch from the server. #bash> git clone git:///home/git/u-boot-mitydspl138.git u-boot-mitydspl138 Add capability to deal with multiple PHYs reporting on the MDIO interface.Add bootdsp command to load-and-launch a DSP program stored in a COFF image.Add make ubl image tool to add UBL header to front of u-boot.bin image for UBL strapping.Add commands to support programming on-board FPGA at boot-time.Add support for dynamic peripheral configuration using a sector in onboard SPI FLASH:.Add support for configuring factory data in onboard I2C FLASH:.Add support for mityomapl138 board type (Makefile targets and board files). The list below captures the main differences between the local git repository and the mainline (when the snapshot was made). The modifications to the mainline u-Boot are fairly small and contained within the boards/davinci/mityomapl138 directory. master - represents the tested stable build that has been / will be released as part of a board support package delivery.There are two main branches on the repository: The u-Boot code is licensed under the Gnu General Public License, Version 2. Until then, users requiring the source code may access the code here. Our goal, ultimately, is to get the changes necessary to support the MityDSP and MityARM family of processors back into the u-Boot mainline codebase. This port is based on an initial port for an OMAP-L138 EVM module developed by TI at the Arago project site. The source for the port for the MityDSP-L138 and MityARM-1808 platforms can be obtained at the git repository link above. The ARM-9 based Mity CPU's are provided with a port of the Das U-Boot bootloader application commonly used to start embedded linux systems.
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