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The bootloader U-Boot

7,315 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 for Texas Instruments processor based board will be a '''MLO''' and '''u-boot.img'''.
==Config filesNecessary package==IGEP0030 DM3730 Module: igep0030_defconfigIn order to compile the u-boot it is '''necessary''' to set up the Cross Compiler correctly. In this [[Set Up the Cross Compiler|post]] it is detailed how to set up correctly the Cross Compiler (and the desired version).
IGEP0020 DM3730 IGEPv2: igep0020_defconfig{{Message/Information Message|message=The following steps has been tested using '''Ubuntu 16.04''' and the '''4.9 version''' of the '''arm-linux-'''<span class="mw-headline">'''gnueabihf''' compiler</span>}}
IGEP0033 AM335x AQUILA ModuleIn order to install the Compiler we can use this command: am335x_igep0033_defconfig
IGEP0032 OMAP3530 PROTON Module: igep0032_defconfig sudo apt install gcc-arm-linux-gnueabihf==Download U-Boot Source== 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.
IGEP0034 {| 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 Series'''</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 Module</span>| style="width: 527px;"|<span dir="auto">U-boot-ARM</span> |-| style="width: 344px;"|<span style="color: #000000;">IGEP SMARC iMX6 </span>| style="width: am335x_igep0034_defconfig527px;"|<span dir="auto">U-boot-</span>Freescale-NXP|}
IGEP0034 SMARC AM335x Module lite: am335x_igep0034_lite_defconfig* Once we know which U-Boot have we will clone the corresponding git repository.
IGEP0050 OMAP5 IGEPv5:
The result for iMX6 processor based ====<span dir="auto">U-Boot '''ARM''' Series</span>====: If we have an ARM series we will be a follow this table to get our source of U-Boot{| class="contenttable sortable" style="width: 881px; height: 298px;"|- style="height: 16.5781px;"! style="width: 855px; height: 16.5781px; text-align: center; vertical-align: middle;" colspan="2"|'''Downloading binary files/U-Boot Source'''|- style="height: 44px;"! style="background-color: #ffffff; width: 225px; height: 44px;"|'''<span id="Clone_the_u-boot_repo" class="mw-headline">Clone the u-boot.imx.repository</span>'''| style="width: 621px; height: 44px;"|Clone the u-boot repository using git address:
IGEP0046 SMARC iMX6 Duallite 2GB<span style="color: igep0046_imx6dl_2G_defconfig#000000;"> <code>git clone https://git.isee.biz/cgit/arm-boot/u-boot-arm.git</code></span>
IGEP0046 SMARC iMX6 DUAL|- 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 u-boot-arm directory and checkout the isee_v2017.03 as:
IGEP0046 SMARC iMX6 QUAD<span style="color: igep0046_imx6q_2G_defconfig#002d87;"><code><span style="color: #002d87;"><span style="color: #000000;">cd u-boot-arm</span></span></code></span>
IGEP0046 SMARC iMX6 SOLO<span style="color:#000000;"><code>git checkout -b isee_v2017.03 origin/isee_v2017.03</code></span>
=Stable U-Boot=The software git repository is located [https://git.isee.biz/arm-boot here].|}
====<span dir="auto">U-bootBoot '''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: OMAP3 boards, OMAP5 boards, AM335x boards is located [httpscenter; vertical-align:middle;" colspan="2"|'''Downloading binary files//git.isee.biz/armU-Boot Source'''|- style="height: 44px;"! style="background-color: #ffffff; width: 223px;"|'''<span id="Clone_the_u-boot_repo" class="mw-headline">Clone the u-bootrepository</span>'''| style="width: 626px; height: 44px;"|<span style="color: #000000;">Clone the u-boot-arm here].repository using git address:</span>
U-boot<span style="color: iMX6 boards is located [#000000;"><code>git clone https://git.isee.biz/cgit/arm-boot/u-boot-imx here].git</code></span>
|- style="height: 89px;"! style="background-color: #ffffff; width: 223px;"|'''<span id="Checkout_u-boot_repo" class="mw-headline">Checkout u-boot firmware binaries can be downloaded from hererepository</span>'''| style="width: 626px; height: 89px;"|<span style="color: #000000;">Go to the u-boot-imx directory and checkout the isee_imx_v2017.03.y as:</span>
[EOL] For OMAP3 based platforms, ISEE do not support <span style="color: #000000;"><code>cd u-boot, instead of, ISEE provides [[The IGEP X-loader]]imx</code></span>
<span style==u-boot Freescale-NXP iMX6 series==* [[U-boot Freescale-NXP iMX6 Series|u-boot Freescale"color: #000000;"><code>git checkout origin/isee_imx_v2017.03_4.9.11_1.0.0_ga -NXP iMX6 Series]]b isee_imx_v2017.03_4.9.11_1.0.0_ga </code></span>
==u-boot Texas Instruments AM335x, OMAP3, DM3730 series==* [[u-boot_Texas_Instruments_Series|u-boot Texas Instruments Series]]}
==Prepare your U-BOOT==Once we have downloaded the U-Boot source. We will '''execute''' the file called '''defconfig''' (default configuration) that it variates in function of each model. In order to load the default configuration of the target board, we have to write the following command:  <span style="color: #000000;"> make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- [[Categoryyour_defconfig]</span>* In the following table it can be found the name of each default configuration associated to each IGEP PROCESSORS BOARDS:   {| class="contenttable sortable" style="width: 872px; height: 317px;"|-! style="width: 196px;"|Module! style="width: 10px;"|Defconfig! style="width: 644px;"|Example|-| style="width: 196px;"|IGEPv2 DM3730| style="width: 10px;"|igep0020_defconfig| style="width: 644px;"|<span style="color: #000000;"><code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0020_defconfig</code></span>|-| style="width: 196px;"|IGEP COM MODULE DM3730/AM3703| style="width: 10px;"|igep0030_defconfig| style="width: 644px;"|<span style="color: #000000;"><code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0030_defconfig</code></span>|-| style="width: 196px;"|IGEP COM AQUILA AM335x| style="width: 10px;"|am335x_igep0033_defconfig | 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- am335x_igep0034_defconfig</code></span>|-| style="width: 196px;"|IGEP SMARC 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>|} ==Build your U-BOOT==After running the defconfig. You can build the U-Bootby executing this command:  <span style="color: #000000;">  make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-</span>Once the compile process has sucesfully finished, we will find the resulting files inside the u-boot root folder. Depending on the processor the generated files will be different: * The result for '''ARM''' processor based board will be a '''MLO''' and '''u-boot.img'''.* The result for '''Freescale'''-'''NXP'''<strong style="font-size: 0.939em;"> </strong><span style="font-size: 0.939em;">processor based will be a </span><strong style="font-size: 0.939em;">u-boot.imx.</strong>  Finally 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]]. {{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 [[How to prepare a bootable MicroSD Card|How to prepare a bootable MicroSD Card]].</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 [[Linux Kernel 4.9.y|kernel]]