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==Necessary package==
In 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).
{{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>}}
In order to install the Compiler we can use this command:
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.
Clone the u-boot repository using git address:
<span style="color: #002d87000000;"><code><span style="color: #002d87;">git clone git@git.isee.biz:arm-boot/u-boot-arm.git</span></code> </span>
or
|- style="height: 110px;"
Go to the u-boot-arm directory and checkout the isee_v2017.03 as:
<span style="color: #002d87;"><code><span style="color: #002d87;"><span style="color: #000000;">cd u-boot-arm</span></span></code></span>
|}
! style="background-color: #ffffff; width: 223px;"|'''<span id="Clone_the_u-boot_repo" class="mw-headline">Clone the u-boot repository</span>'''
| style="width: 626px; height: 44px;"|
<span style="color: #000000;">Clone the u-boot repository using git address:</span>
<span style="color: #002d87000000;"><code><span style="color: #002d87;">git clone git@git.isee.biz:arm-boot/u-boot-imx.git</span></code></span>
<span style="color: #000000;">or</span>
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! style="background-color: #ffffff; width: 223px;"|'''<span id="Checkout_u-boot_repo" class="mw-headline">Checkout u-boot repository</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>
|}
In order to load the default configuration of the target board, we have to write the following command:
<span style="color: #002d87000000;"> make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- [your_defconfig]</span>
* In the following table it can be found the name of each default configuration associated to each IGEP PROCESSORS BOARDS:
| style="width: 196px;"|IGEPv2 DM3730
| style="width: 10px;"|igep0020_defconfig
| style="width: 644px;"|<code><span style="color: #002d87000000;"><code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0020_defconfig</spancode></codespan>
|-
| style="width: 196px;"|IGEP COM MODULE DM3730/AM3703
| style="width: 10px;"|igep0030_defconfig
| style="width: 644px;"|<span style="color: #002d87000000;"><code><span style="color: #002d87;">make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0030_defconfig</span></code></span>
|-
| style="width: 196px;"|IGEP COM AQUILA AM335x
am335x_igep0033_defconfig
| style="width: 644px;"|<span style="color: #002d87000000;"><code><span style="color: #002d87;">make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- am335x_igep0033_defconfig</span></code></span>
|-
| style="width: 196px;"|IGEPv5 OMAP5432
| style="width: 10px;"|
| style="width: 644px;"|<span style="color: #002d87000000;"><code><span style="color: #002d87;">make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-</span></code></span>
|-
| style="width: 196px;"|IGEP SMARC AM335x
| style="width: 10px;"|am335x_igep0034_defconfig
| style="width: 644px;"|<span style="color: #002d87000000;"><code><span style="color: #002d87;">make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- am335x_igep0034_defconfig</span></code></span>
|-
| style="width: 196px;"|IGEP SMARC iMX6 Solo/Dual Lite
| style="width: 10px;"|igep0046_imx6dl_2G_defconfig
| style="width: 644px;"|<span style="color: #002d87000000;"><code><span style="color: #002d87;">make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0046_imx6dl_2G_defconfig</span></code></span>
|-
| style="width: 196px;"|IGEP SMARC iMX6 Dual/ Quad
| style="width: 10px;"|igep0046_imx6q_2G_defconfig
| style="width: 644px;"|<span style="color: #002d87000000;"><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: #002d87000000;"><code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0046_imx6q_2G_defconfigigep0146_imx6ul_512M_defconfig<br /span></code></span>
|}
==Build your U-BOOT==
After running the defconfig. You can build the U-Boot by executing this command:
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:
Finally we can copy this file files in a '''boot device''', for example, a microSD Memory Card and power on the board. {{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 link[[How to prepare a bootable MicroSD Card|post]].</span>}}
{{Message/Information Message|title==TITLE|message=<span idstyle="What_next...color: #000000;" class="mw>In case of the Freescale-headline">What next...</span>===After build NXP Porcessor Boards, it is not possible to copy directly the u-boot you can use it for boot .imx file. It is necessary to copy in the first blocks of the board, exist several options for boot, check device using the Hardware Reference Manual about dd command. It is explained in the options available for your boardfollowing post [[How to prepare a bootable MicroSD Card|How to prepare a bootable MicroSD Card]].</span>}}
==<span style="color: #999999;">u-boot Texas Instruments AM335x, OMAP3, DM3730, OMAP5432 series</span>Download Binary package==* <span style="color[http: #999999;">[[u-boot_Texas_Instruments_Series|u-boot Texas Instruments Series//downloads.isee.biz/pub/relaunch/ You can download binary packages from here.]]</span>
==<span styleid="What_next..." class="color: #999999;mw-headline">What next...</span>==After build u-boot you have to download and compile [[Category:Boot_loadersLinux Kernel 4.9.y|kernel]]</span>
