Difference between revisions of "The bootloader U-Boot"

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__TOC__
 
__TOC__
  
−
=Overview=
+
==Overview==
−
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 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>
  
−
=What is U-Boot?=
+
===<span style="color: #000000;">What is U-Boot?</span>===
−
[http://www.denx.de/wiki/U-Boot/ Das U-Boot] (Universal Bootloader) is an open source, primary boot loader used in embedded devices. It is available for a number of different computer architectures, including PPC, ARM, MIPS, AVR32, x86.
+
<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. Its primary purpose in the shipping system is to load some operating system.</span>
  
−
=How to cross compile the U-Boot=
+
<span style="color: #000000;">That means that U-Boot is necessary to perform a certain task, but it's nothing you want to throw any significant resources at. Typically U-Boot is stored in relatively small NOR flash memory, which is expensive compared to the much larger NAND devices often used to store the operating system and the application.</span>
−
In order to compile and build the U-Boot for IGEP PROCESSOR BOARDS you should set the CROSS_COMPILE variable. Set this to the prefix of your toolchain (including 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-.
 
  
−
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 files==
+
==Necessary package==
−
IGEP0030 DM3730 Module: igep0030_defconfig
+
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).
  
−
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 Module: am335x_igep0033_defconfig
+
In order to install the Compiler we can use this command:
  
−
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 SMARC AM335x Module: am335x_igep0034_defconfig
+
{| 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</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
 +
|}
  
−
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 will be a '''u-boot.imx.'''
+
====<span dir="auto">U-Boot '''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: 16.5781px;"
 +
! 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 repository</span>'''
 +
| style="width: 621px; height: 44px;"|
 +
Clone the u-boot repository using git address:
  
−
IGEP0046 SMARC iMX6 Duallite 2GB: igep0046_imx6dl_2G_defconfig
+
<span style="color: #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: igep0046_imx6q_2G_defconfig
+
<span style="color: #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].
 
  
−
U-boot: OMAP3 boards, OMAP5 boards, AM335x boards is located [https://git.isee.biz/arm-boot/u-boot-arm here].
+
====<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;"|'''<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>
  
−
U-boot: iMX6 boards is located [https://git.isee.biz/arm-boot/u-boot-imx here].
+
<span style="color: #000000;"><code>git clone https://git.isee.biz/cgit/arm-boot/u-boot-imx.git</code></span>
  
−
u-boot firmware binaries can be downloaded from here.
+
|- style="height: 89px;"
 +
! 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>
  
−
[EOL] For OMAP3 based platforms, ISEE do not support u-boot, instead of, ISEE provides [[The IGEP X-loader]]
+
<span style="color: #000000;"><code>cd u-boot-imx</code></span>
  
−
==u-boot Freescale-NXP iMX6 series==
+
<span style="color: #000000;"><code>git checkout origin/isee_imx_v2017.03_4.9.11_1.0.0_ga -b isee_imx_v2017.03_4.9.11_1.0.0_ga </code></span>
−
* [[U-boot Freescale-NXP iMX6 Series|u-boot Freescale-NXP iMX6 Series]]
 
  
−
==u-boot Texas Instruments AM335x, OMAP3, DM3730 series==
+
|}
−
* [[u-boot_Texas_Instruments_Series|u-boot Texas Instruments Series]]
 
  
−
==U-Boot 2014.01.y-omap5 series==
+
==Prepare your U-BOOT==
−
The 2014.01.y-omap5 u-boot series are supported by IGEP PROCESSOR BOARDS based on:
+
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.
  
−
<gallery heights="100px">
+
In order to load the default configuration of the target board, we have to write the following command:
−
File:omap5.png
 
−
</gallery>
 
  
−
See the [[U-Boot 2014.01.y]] article
+
<span style="color: #000000;"> 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:
  
  
  
−
==U-Boot 2015.07.y series==
+
{| class="contenttable sortable" style="width: 872px; height: 317px;"
−
The 2015.07.y u-boot series are supported by IGEP PROCESSOR BOARDS based on:
+
|-
 +
! 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
  
−
<gallery heights="100px">
+
| style="width: 644px;"|<span style="color: #000000;"><code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- am335x_igep0033_defconfig</code></span>
−
File:am335x.png
+
|-
−
</gallery>
+
| 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>
 +
|}
  
−
See the [[U-Boot 2015.07.y]] article
+
==Build your U-BOOT==
 +
After running the defconfig. You can build the U-Boot by executing this command:
  
−
=Unstable U-Boot=
+
<span style="color: #000000;">  make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-</span>
−
<span style="color: #ff0000;">'''NOTE: These u-boot series are where the development work takes place and you should use this if you're after to work with the latest cutting edge developments. 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 branches. USE AT YOUR OWN RISK'''</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 mainline series are supported by IGEP PROCESSOR BOARDS based on:
+
* 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>
  
−
<gallery heights="100px">
 
−
File:omap3.png
 
−
File:am335x.png
 
−
File:omap5.png
 
−
</gallery>
 
  
−
See the [[U-Boot Mainline Series]] article.
+
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]].
  
−
=End Of Life U-Boot (EOL)=
+
{{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>}}
−
An "End of Life" U-Boot means that its support will stop and all the users are urged to upgrade to a new version.
 
  
−
==U-Boot 2013.07.y series==
 
−
<span style="color: #ff0000;">'''NOTE: These series are end-of-life, dead, gone, buried'''</span>
 
  
−
The 2013.07.y u-boot series are supported by IGEP PROCESSOR BOARDS based on:
 
  
−
<gallery heights="100px">
+
==Download Binary package==
−
File:am335x.png
+
[http://downloads.isee.biz/ You can download binary packages from here.]
−
</gallery>
 
  
−
See the [[U-Boot 2013.07.y]] article
+
==<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]]
−
==U-Boot 2010.06-y series==
 
−
<span style="color: #ff0000;">'''NOTE: These series are end-of-life, dead, gone, buried'''</span>
 
−
 
 
−
The 2010.06-y u-boot series are supported by IGEP PROCESSOR BOARDS based on:
 
−
 
 
−
<gallery heights="100px">
 
−
File:omap3.png
 
−
</gallery>
 
−
 
 
−
See the [[U-Boot 2010.06-y series]] article.
 
−
 
 
−
==U-Boot 2009.11-y series==
 
−
<span style="color: #ff0000;">'''NOTE: These series are end-of-life, dead, gone, buried'''</span>
 
−
 
 
−
The 2009.11-y u-boot series are supported by IGEP PROCESSOR BOARDS based on:
 
−
 
 
−
<gallery heights="100px">
 
−
File:omap3.png
 
−
</gallery>
 
−
 
 
−
See the [[U-Boot 2009.11-y series]] article.
 
−
 
 
−
[[Category:Boot loaders|Uboot]]
 

Latest revision as of 16:27, 12 October 2023

Overview

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.

What is U-Boot?

Das U-Boot (Universal Bootloader) is an open source, primary boot loader used in embedded devices. Its primary purpose in the shipping system is to load some operating system.

That means that U-Boot is necessary to perform a certain task, but it's nothing you want to throw any significant resources at. Typically U-Boot is stored in relatively small NOR flash memory, which is expensive compared to the much larger NAND devices often used to store the operating system and the application.


Necessary package

In order to compile the u-boot it is necessary to set up the Cross Compiler correctly. In this post it is detailed how to set up correctly the Cross Compiler (and the desired version).

Information.jpg The following steps has been tested using Ubuntu 16.04 and the 4.9 version of the arm-linux-gnueabihf compiler

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.

Commercial Name U-Boot Series
IGEPv2 DM3730 U-boot-ARM
IGEP COM MODULE DM3730/AM3703 U-boot-ARM 
IGEP COM AQUILA AM335x U-boot-ARM 
IGEPv5 OMAP5432 U-boot-ARM 
IGEP SMARC AM335x U-boot-ARM 
IGEP SMARC iMX6  U-boot-Freescale-NXP
  • Once we know which U-Boot have we will clone the corresponding git repository.


U-Boot ARM Series

If we have an ARM series we will follow this table to get our source of U-Boot
Downloading binary files/U-Boot Source
Clone the u-boot repository

Clone the u-boot repository using git address:

 git clone https://git.isee.biz/cgit/arm-boot/u-boot-arm.git

Checkout u-boot repository

Go to the u-boot-arm directory and checkout the isee_v2017.03 as:

cd u-boot-arm

git checkout -b isee_v2017.03 origin/isee_v2017.03

U-Boot Freescale-NXP  Serie

If we have an Freescale-NXP series we will follow this table to get our source of U-Boot
Downloading binary files/U-Boot Source
Clone the u-boot repository

Clone the u-boot repository using git address:

git clone https://git.isee.biz/cgit/arm-boot/u-boot-imx.git

Checkout u-boot repository

Go to the u-boot-imx directory and checkout the isee_imx_v2017.03.y as:

cd u-boot-imx

git checkout origin/isee_imx_v2017.03_4.9.11_1.0.0_ga -b isee_imx_v2017.03_4.9.11_1.0.0_ga 

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: 

 make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- [your_defconfig]
  • In the following table it can be found the name of each default configuration associated to each IGEP PROCESSORS BOARDS:


Module Defconfig Example
IGEPv2 DM3730 igep0020_defconfig make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0020_defconfig
IGEP COM MODULE DM3730/AM3703 igep0030_defconfig make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0030_defconfig
IGEP COM AQUILA AM335x

am335x_igep0033_defconfig

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- am335x_igep0033_defconfig
IGEPv5 OMAP5432   make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
IGEP SMARC AM335x am335x_igep0034_defconfig make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- am335x_igep0034_defconfig
IGEP SMARC iMX6 Solo/Dual Lite igep0046_imx6dl_2G_defconfig make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0046_imx6dl_2G_defconfig
IGEP SMARC iMX6 Dual/ Quad igep0046_imx6q_2G_defconfig make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0046_imx6q_2G_defconfig
IGEP SMARC iMX6 Ultra-Lite / Ultra Ultra-Lite igep0146_imx6ul_512M_defconfig make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- igep0146_imx6ul_512M_defconfig

Build your U-BOOT

After running the defconfig. You can build the U-Boot by executing this command: 

  make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-

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 processor based will be a u-boot.imx.


Finally we can copy this files in a boot device, for example, a microSD Memory Card. It is explained in the following post.

Information.jpg 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.


Download Binary package

You can download binary packages from here.

What next...

After build u-boot you have to download and compile kernel

Retrieved from "http://labs.isee.biz/index.php?title=The_bootloader_U-Boot&oldid=12228"