Difference between revisions of "i.MX53 SODIMM PC Barebox"
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| − | [[Category:i.MX53 SODIMM PC - Development | + | [[Category:i.MX53 SODIMM PC - Development Kit]] |
[[Category:Barebox]] | [[Category:Barebox]] | ||
<!-- --> | <!-- --> | ||
<div style="float:right">__TOC__</div> | <div style="float:right">__TOC__</div> | ||
| − | i.MX53 SODIMM PC - Development | + | i.MX53 SODIMM PC - Development Kit uses Barebox as a bootloader. This page displays how to configure and build it.<br /><br /> |
Barebox is a bootloader responsible for hardware initialization, loading and booting Linux kernel. It is also used for module flashing. | Barebox is a bootloader responsible for hardware initialization, loading and booting Linux kernel. It is also used for module flashing. | ||
== Building images == | == Building images == | ||
| − | |||
=== Set toolchain === | === Set toolchain === | ||
Export [[i.MX53_SODIMM_PC_Toolchain|toolchain variables]] for every related terminal session. | Export [[i.MX53_SODIMM_PC_Toolchain|toolchain variables]] for every related terminal session. | ||
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<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
cd ~/workdir/vmx53/barebox/ | cd ~/workdir/vmx53/barebox/ | ||
| − | wget http://downloads.voipac.com/files/i.MX53_SODIMM_PC- | + | wget http://downloads.voipac.com/files/i.MX53_SODIMM_PC-Development_Kit/module/software/barebox/sources/barebox-2014.03.0_vmx53_20151129.cfg |
| − | wget http://downloads.voipac.com/files/i.MX53_SODIMM_PC- | + | wget http://downloads.voipac.com/files/i.MX53_SODIMM_PC-Development_Kit/module/software/barebox/sources/barebox-2014.03.0_vmx53_20151129.patch |
cd ~/workdir/vmx53/barebox/barebox-${BB_VERSION}.work | cd ~/workdir/vmx53/barebox/barebox-${BB_VERSION}.work | ||
patch -p1 < ../barebox-${BB_VERSION}_vmx53_${SW_VERSION}.patch | patch -p1 < ../barebox-${BB_VERSION}_vmx53_${SW_VERSION}.patch | ||
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=== Compile === | === Compile === | ||
| − | Output file is | + | Output file is stored in arch/arm/pbl/zbarebox.bin: |
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
cd ~/workdir/vmx53/barebox/barebox-${BB_VERSION}.work | cd ~/workdir/vmx53/barebox/barebox-${BB_VERSION}.work | ||
| Line 47: | Line 46: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | == | + | == Configuring bootloader environment == |
| − | |||
=== Edit boot options === | === Edit boot options === | ||
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** Attach rootfs (nfs) | ** Attach rootfs (nfs) | ||
<br /> | <br /> | ||
| − | Boot configuration files support | + | Boot configuration files support custom kernel definition. These settings also allow updating paths or names for binaries: |
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
barebox@Voipac VMX53:/ edit /env/boot/net-dtb | barebox@Voipac VMX53:/ edit /env/boot/net-dtb | ||
| Line 83: | Line 81: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | === | + | === DTB file selection === |
| − | + | As different module configurations use altered device trees, defining the correct board variant is important: | |
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
barebox@Voipac VMX53:/ edit /env/config | barebox@Voipac VMX53:/ edit /env/config | ||
Latest revision as of 22:50, 23 October 2021
i.MX53 SODIMM PC - Development Kit uses Barebox as a bootloader. This page displays how to configure and build it.
Barebox is a bootloader responsible for hardware initialization, loading and booting Linux kernel. It is also used for module flashing.
Building images
Set toolchain
Export toolchain variables for every related terminal session.
Set shell variables
BB_VERSION=2014.03.0 SW_VERSION=20150308
Download and extract source code
mkdir -pv ~/workdir/vmx53/barebox/
cd ~/workdir/vmx53/barebox/
wget http://barebox.org/download/barebox-${BB_VERSION}.tar.bz2
tar xvjf barebox-${BB_VERSION}.tar.bz2
mv barebox-${BB_VERSION} barebox-${BB_VERSION}.orig
cp -rv barebox-${BB_VERSION}.orig barebox-${BB_VERSION}.work
Download and apply Voipac patches
cd ~/workdir/vmx53/barebox/
wget http://downloads.voipac.com/files/i.MX53_SODIMM_PC-Development_Kit/module/software/barebox/sources/barebox-2014.03.0_vmx53_20151129.cfg
wget http://downloads.voipac.com/files/i.MX53_SODIMM_PC-Development_Kit/module/software/barebox/sources/barebox-2014.03.0_vmx53_20151129.patch
cd ~/workdir/vmx53/barebox/barebox-${BB_VERSION}.work
patch -p1 < ../barebox-${BB_VERSION}_vmx53_${SW_VERSION}.patch
cp ../barebox-${BB_VERSION}_vmx53_${SW_VERSION}.cfg .config
Compile
Output file is stored in arch/arm/pbl/zbarebox.bin:
cd ~/workdir/vmx53/barebox/barebox-${BB_VERSION}.work
#make ARCH=arm menuconfig
make -j4
Configuring bootloader environment
Edit boot options
Barebox provides 4 boot configurations by default:
- nand-legacy-ubi
- Load kernel (nand - kernel)
- Attach rootfs (nand - rootfs)
- nand-dtb-ubi
- Load kernel (nand - kernel)
- Load device tree (nand - bareboxenv)
- Attach rootfs (nand - rootfs)
- net-legacy
- Load kernel (tftp)
- Attach rootfs (nfs)
- net-dtb
- Load kernel (tftp)
- Load device tree (tftp)
- Attach rootfs (nfs)
Boot configuration files support custom kernel definition. These settings also allow updating paths or names for binaries:
barebox@Voipac VMX53:/ edit /env/boot/net-dtb
barebox@Voipac VMX53:/ edit /env/config # list of boot entries. These are executed in order until one # succeeds. An entry can be: # - a filename in /env/boot/ # - a full path to a directory. All files in this directory are # treated as boot files and executed in alphabetical order global.boot.default=nand-dtb-ubi
DTB file selection
As different module configurations use altered device trees, defining the correct board variant is important:
barebox@Voipac VMX53:/ edit /env/config ... # BASIC=557, PRO=668, MAX=779 #global.vmxmodel=557 global.vmxmodel=668 #global.vmxmodel=779 ... barebox@Voipac VMX53:/ saveenv barebox@Voipac VMX53:/ reset