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The bootloader U-Boot

6,172 bytes added, 16:27, 12 October 2023
Download Binary package
__TOC__
==Overview==<span style="color: #000000;">This page is meant to be a starting point for people to learn build a u-boot image and show to people the current status of different u-boot versions for IGEP Processor Boards.</span>
===<span style="color: #000000;">What is U-Boot?</span>===<span style="color: #000000;">[http://www.denx.de/wiki/U-Boot/ Das U-Boot] (Universal Bootloader) is an open source, primary boot loader used in embedded devices. It Its primary purpose in the shipping system is available for a number of different computer architectures, including PPC, ARM, MIPS, AVR32, x86to load some operating system.</span>
<span style=How to cross compile the "color: #000000;">That means that U-Boot=In order is necessary to perform a certain task, but it's nothing you want to compile and build the throw any significant resources at. Typically U-Boot for IGEP PROCESSOR BOARDS you should set is stored in relatively small NOR flash memory, which is expensive compared to the CROSS_COMPILE variable. Set this much larger NAND devices often used to store the prefix of your toolchain (including operating system and the trailing dash "-"). So if your toolchain is invoked as say arm-linux-gnueabi-gcc, just chop off that trailing gcc and that's what you use: arm-linux-gnueabihf-application.</span>
As example, once you've downloaded the u-boot source, you should follow these steps:
make CROSS_COMPILE=[cross compiler] [board config]
make CROSS_COMPILE=[cross compiler]
The result will be a MLO and a ==Necessary package==In order to compile the u-bootit is '''necessary''' to set up the Cross Compiler correctly.img file. You can install these files, for example, in In this [[Set Up the Cross Compiler|post]] it is detailed how to set up correctly the Cross Compiler (and the boot partition of a SD-carddesired version).
{{Message/Information Message|message=Stable UThe following steps has been tested using '''Ubuntu 16.04''' and the '''4.9 version''' of the '''arm-linux-Boot'''<span class=For OMAP3 based platforms, ISEE do not support u-boot, instead of, ISEE provides [[The IGEP X"mw-loader]]headline">'''gnueabihf''' compiler</span>}}
==U-Boot 2015.04.y-iMX6 series==The 2015.04.y-iMX6 u-boot series are supported by IGEP PROCESSOR BOARDS based onIn order to install the Compiler we can use this command:
<gallery heights sudo apt install gcc-arm-linux-gnueabihf==Download U-Boot Source=="100px">File:iMX6 First of all, will be a distintion between '''NXP'''-processors products and '''ARM'''-processors products. Because there are different kinds of U-Boot depending of each processor.png</gallery>
See the [[{| class="contenttable sortable" style="width: 887px;"|-! style="width: 344px;"|<span style="color: #000000;">'''Commercial Name'''</span>! style="width: 527px;"|<span style="color: #000000;">'''U-Boot 2015.04.y]] articleSeries'''</span>|-| style="width: 344px;"|<span style="color: #000000;">IGEPv2 DM3730</span>| style="width: 527px;"|<span dir="auto">U-boot-ARM</span>|-| style="width: 344px;"|<span style="color: #000000;">IGEP COM MODULE </span>DM3730/AM3703| style="width: 527px;"|<span dir="auto">U-boot-ARM</span> |-| style="width: 344px;"|<span style="color: #000000;">IGEP COM AQUILA AM335x</span>| style="width: 527px;"|<span style="color: #000000;"><span dir="auto">U-boot-ARM</span> </span>|-| style="width: 344px;"|<span style="color: #000000;">IGEPv5 OMAP5432</span>| style="width: 527px;"|<span dir="auto">U-boot-ARM</span> |-| style="width: 344px;"|<span style="color: #000000;">IGEP SMARC AM335x</span>| style="width: 527px;"|<span dir="auto">U-boot-ARM</span> |-| style="width: 344px;"|<span style="color: #000000;">IGEP SMARC iMX6 </span>| style="width: 527px;"|<span dir="auto">U-boot-</span>Freescale-NXP|}
* Once we know which U-Boot have we will clone the corresponding git repository.
====<span dir="auto">U-Boot 2014'''ARM''' Series</span>====: If we have an ARM series we will follow this table to get our source of U-Boot{| class="contenttable sortable" style="width: 881px; height: 298px;"|- style="height: 16.015781px;"! style="width: 855px; height: 16.y5781px; text-omap5 seriesalign: center; vertical-align: middle;" colspan="2"|'''Downloading binary files/U-Boot Source'''|- style="height: 44px;"The 2014.01.y! style="background-color: #ffffff; width: 225px; height: 44px;"|'''<span id="Clone_the_u-boot_repo" class="mw-headline">Clone the u-omap5 boot repository</span>'''| style="width: 621px; height: 44px;"|Clone the u-boot series are supported by IGEP PROCESSOR BOARDS based onrepository using git address:
<gallery heightsspan style="100pxcolor: #000000;">File <code>git clone https:omap5//git.pngisee.biz/cgit/arm-boot/u-boot-arm.git</code></galleryspan>
See |- style="height: 110px;"! style="background-color: #ffffff; width: 225px; height: 110px;"|<span id="Checkout_u-boot_repo" class="mw-headline">Checkout u-boot repository</span>| style="width: 621px; height: 110px;"|Go to the [[Uu-boot-Boot 2014.01arm directory and checkout the isee_v2017.y]] article03 as:
<span style="color: #002d87;"><code><span style="color: #002d87;"><span style="color: #000000;">cd u-boot-arm</span></span></code></span>
<span style="color: #000000;"><code>git checkout -b isee_v2017.03 origin/isee_v2017.03</code></span>
==U-Boot 2015.07.y series==The 2015.07.y u-boot series are supported by IGEP PROCESSOR BOARDS based on:|}
====<span dir="auto">U-Boot '''Freescale-NXP'''  Serie</span>====<div class="clearfix">: If we have an Freescale-NXP series we will follow this table to get our source of U-Boot</div>{| class="contenttable sortable" style="width: 883px; height: 263px;"|- style="height: 22px;"! style="width: 849px; height: 22px; text-align: center; vertical-align: middle;" colspan="2"|'''Downloading binary files/U-Boot Source'''|- style="height: 44px;"! style="background-color: #ffffff; width: 223px;"|'''<gallery heightsspan id="Clone_the_u-boot_repo" class="100pxmw-headline">Clone the u-boot repository</span>'''File| style="width:am335x.png626px; height: 44px;"|<span style="color: #000000;">Clone the u-boot repository using git address:</galleryspan>
See the [[U<span style="color: #000000;"><code>git clone https://git.isee.biz/cgit/arm-Boot 2015.07boot/u-boot-imx.y]] articlegit</code></span>
=Unstable U|-Bootstyle="height: 89px;"<span ! style="background-color: #ff0000ffffff; width: 223px;"|'''<span id="Checkout_u-boot_repo" class="mw-headline">Checkout u-boot repository</span>'''NOTE| style="width: 626px; height: 89px;"|<span style="color: These #000000;">Go to the u-boot series are where the development work takes place -imx directory and you should use this if you're after to work with checkout the latest cutting edge developmentsisee_imx_v2017. It is possible trunk can suffer temporary periods of instability while new features are developed and if this is undesirable we recommend using one of the release branches03. USE AT YOUR OWN RISK'''y as:</span>
The mainline series are supported by IGEP PROCESSOR BOARDS based on<span style="color:#000000;"><code>cd u-boot-imx</code></span>
<gallery heightsspan style="100pxcolor: #000000;">File:omap3<code>git checkout origin/isee_imx_v2017.03_4.9.11_1.0.0_ga -b isee_imx_v2017.03_4.9.pngFile:am335x11_1.pngFile:omap50.png0_ga </code></galleryspan>
See the [[U-Boot Mainline Series]] article.|}
=End Of Life =Prepare your U-Boot (EOL)BOOT==An "End of Life" Once we have downloaded the U-Boot means that its support source. We will stop and all '''execute''' the users are urged to upgrade to a new versionfile called '''defconfig''' (default configuration) that it variates in function of each model.
==U-Boot 2013.07.y series==<span style="color: #ff0000;">'''NOTE: These series are end-In order to load the default configuration of-lifethe target board, dead, gone, buried'''</span>we have to write the following command:
The 2013.07.y u <span style="color: #000000;"> make ARCH=arm CROSS_COMPILE=arm-boot series are supported by linux-gnueabihf- [your_defconfig]</span>* In the following table it can be found the name of each default configuration associated to each IGEP PROCESSOR PROCESSORS BOARDS based on:
<gallery heights="100px">
File:am335x.png
</gallery>
See the [[U-Boot 2013.07.y]] article
{| class="contenttable sortable" style=U"width: 872px; height: 317px;"|-Boot 2010.06! style="width: 196px;"|Module! style="width: 10px;"|Defconfig! style="width: 644px;"|Example|-y series| style="width: 196px;"|IGEPv2 DM3730| style="width: 10px;"|igep0020_defconfig| style="width: 644px;"|<span style="color: #ff0000000000;">'''NOTE<code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0020_defconfig</code></span>|-| style="width: 196px;"|IGEP COM MODULE DM3730/AM3703| style="width: These series are end10px;"|igep0030_defconfig| style="width: 644px;"|<span style="color: #000000;"><code>make ARCH=arm CROSS_COMPILE=arm-linux-ofgnueabihf-life, dead, gone, buried''' igep0030_defconfig</code></span>|-| style="width: 196px;"|IGEP COM AQUILA AM335x| style="width: 10px;"|am335x_igep0033_defconfig
The 2010.06| style="width: 644px;"|<span style="color: #000000;"><code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- am335x_igep0033_defconfig</code></span>|-| style="width: 196px;"|IGEPv5 OMAP5432| style="width: 10px;"| | style="width: 644px;"|<span style="color: #000000;"><code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-</code></span>|-| style="width: 196px;"|IGEP SMARC AM335x| style="width: 10px;"|am335x_igep0034_defconfig| style="width: 644px;"|<span style="color: #000000;"><code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-y u am335x_igep0034_defconfig</code></span>|-boot series are supported by | style="width: 196px;"|IGEP PROCESSOR BOARDS based onSMARC iMX6 Solo/Dual Lite| style="width:10px;"|igep0046_imx6dl_2G_defconfig| style="width: 644px;"|<span style="color: #000000;"><code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0046_imx6dl_2G_defconfig</code></span>|-| style="width: 196px;"|IGEP SMARC iMX6 Dual/ Quad| style="width: 10px;"|igep0046_imx6q_2G_defconfig| style="width: 644px;"|<span style="color: #000000;"><code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0046_imx6q_2G_defconfig</code></span>|-| style="width: 196px;"|IGEP SMARC iMX6 Ultra-Lite / Ultra Ultra-Lite| style="width: 10px;"|igep0146_imx6ul_512M_defconfig| style="width: 644px;"|<span style="color: #000000;"><code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0146_imx6ul_512M_defconfig<br /></code></span>|}
<gallery heights="100px">=Build your U-BOOT==FileAfter running the defconfig. You can build the U-Boot by executing this command:omap3.png</gallery>
See <span style="color: #000000;">  make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-</span>Once the [[Ucompile process has sucesfully finished, we will find the resulting files inside the u-Boot 2010.06-y series]] articleboot root folder.Depending on the processor the generated files will be different:
==U* The result for '''ARM''' processor based board will be a '''MLO''' and '''u-Boot 2009boot.11img'''.* The result for '''Freescale'''-y series'''NXP'''<strong style="font-size: 0.939em;"> </strong><span style="font-size: 0.939em;">processor based will be a </span ><strong style="colorfont-size: #ff00000.939em;">'''NOTE: These series are endu-of-life, dead, gone, buried'''boot.imx.</spanstrong>
The 2009.11-y u-boot series are supported by IGEP PROCESSOR BOARDS based on:
<gallery heights="100px">File:omap3Finally we can copy this files in a '''boot device''', for example, a microSD Memory Card. It is explained in the following [[How to prepare a bootable MicroSD Card|post]].png</gallery>
See {{Message/Information Message|title=TITLE|message= <span style="color: #000000;">In case of the Freescale-NXP Porcessor Boards, it is not possible to copy directly the u-boot.imx file. It is necessary to copy in the first blocks of the boot device using the dd command. It is explained in the following post [[U-Boot 2009.11-y seriesHow to prepare a bootable MicroSD Card|How to prepare a bootable MicroSD Card]] article.</span>}}
  ==Download Binary package==[http://downloads.isee.biz/ You can download binary packages from here.] ==<span id="What_next..." class="mw-headline">What next...</span>==After build u-boot you have to download and compile [Category:Boot loaders[Linux Kernel 4.9.y|Ubootkernel]]