Difference between revisions of "DESK-MX8M-L/Development/Building Linux kernel"
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* open a terminal window and ''cd'' into Linux kernel source code | * open a terminal window and ''cd'' into Linux kernel source code | ||
| − | <pre | + | <pre> |
cd desk-mx-l/linux | cd desk-mx-l/linux | ||
</pre> | </pre> | ||
| Line 69: | Line 69: | ||
* in case of needs you can update your local repository with the following git command | * in case of needs you can update your local repository with the following git command | ||
| − | <pre | + | <pre> |
git pull | git pull | ||
</pre> | </pre> | ||
* checkout the right branch | * checkout the right branch | ||
| − | + | <pre> | |
| − | <pre | ||
git checkout desk-mx8m-l-rel-2.0.0 | git checkout desk-mx8m-l-rel-2.0.0 | ||
</pre> | </pre> | ||
| Line 81: | Line 80: | ||
* configure the build environment: the '''proper SDK''' has to be installed in the DVDK as described in the [[DESK-MX8M-L/General/DVDK_Virtual_Machine | DVDK Virtual Machine]] wiki page | * configure the build environment: the '''proper SDK''' has to be installed in the DVDK as described in the [[DESK-MX8M-L/General/DVDK_Virtual_Machine | DVDK Virtual Machine]] wiki page | ||
| − | <pre | + | <pre> |
source /home/dvdk/desk-mx-l/desk-mx8m-l-2.0.0-rc2_env.sh | source /home/dvdk/desk-mx-l/desk-mx8m-l-2.0.0-rc2_env.sh | ||
</pre> | </pre> | ||
| Line 87: | Line 86: | ||
* enter the source tree directory and run the following commands: | * enter the source tree directory and run the following commands: | ||
| − | <pre | + | <pre> |
| − | make imx_v8_defconfig | + | dvdk@vagrant:~/desk-mx-l/linux$ make imx_v8_defconfig |
| − | make Image modules freescale/imx8mm-mito8mmini.dtb freescale/imx8mp-mito8mplus-cb1001.dtb | + | dvdk@vagrant:~/desk-mx-l/linux$ make Image modules freescale/imx8mm-mito8mmini.dtb freescale/imx8mp-mito8mplus-cb1001.dtb |
</pre> | </pre> | ||
| Line 99: | Line 98: | ||
<pre class="workstation-terminal"> | <pre class="workstation-terminal"> | ||
| − | cp arch/arm64/boot/Image /tftpboot/desk-mx-l/ | + | dvdk@vagrant:~/desk-mx-l$ cp arch/arm64/boot/Image /tftpboot/desk-mx-l/ |
| − | cp arch/arm64/boot/dts/freescale/*.dtb /tftpboot/desk-mx-l/ | + | dvdk@vagrant:~/desk-mx-l$ cp arch/arm64/boot/dts/freescale/*.dtb /tftpboot/desk-mx-l/ |
</pre> | </pre> | ||
| Line 112: | Line 111: | ||
<pre class="workstation-terminal"> | <pre class="workstation-terminal"> | ||
| − | mkdir modules-install | + | dvdk@vagrant:~/desk-mx-l/linux$ mkdir modules-install |
| − | make INSTALL_MOD_PATH=modules-install modules_install | + | dvdk@vagrant:~/desk-mx-l/linux$ make INSTALL_MOD_PATH=modules-install modules_install |
| − | cd modules-install | + | dvdk@vagrant:~/desk-mx-l/linux$ cd modules-install |
| + | dvdk@vagrant:~/desk-mx-l/linux/modules-install$ tar cvzf ../modules.tar.gz . && cd .. | ||
| + | dvdk@vagrant:~/desk-mx-l/linux$ | ||
</pre> | </pre> | ||
| Line 120: | Line 121: | ||
<pre class="workstation-terminal"> | <pre class="workstation-terminal"> | ||
| − | tar xvzf modules.tar.gz -C / | + | root@desk-mx8mp:~# tar xvzf modules.tar.gz -C / |
</pre> | </pre> | ||
Revision as of 16:04, 16 February 2022
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| History | |||
|---|---|---|---|
| Version | Issue Date | Notes | |
| 1.0.0 | Feb 2022 | First DESK-MX8M release | |
Building Linux[edit | edit source]
Quick reference[edit | edit source]
| Repository Information | |
|---|---|
| URL | git@git.dave.eu:desk-mx-l/linux-imx.git |
| stable branch | desk-mx8m-l-rel-2.0.0 |
| stable tag | desk-mx8m-l-2.0.0-rc2 |
| Build Information | ||
|---|---|---|
| defconfig | imx_v8_defconfig | |
| Kernel binary | Image | |
| Device trees | Platform | DTB |
| SBC AXEL | imx8mm-mito8mmini.dtsb | |
| SBC ORCA | imx8mp-mito8mplus-cb1001.dts | |
Instructions[edit | edit source]
It is assumed that the development environment has been set up properly as described here.
- start the Linux development VM and login into the system
- open a terminal window and cd into Linux kernel source code
cd desk-mx-l/linux
- in case of needs you can update your local repository with the following git command
git pull
- checkout the right branch
git checkout desk-mx8m-l-rel-2.0.0
- configure the build environment: the proper SDK has to be installed in the DVDK as described in the DVDK Virtual Machine wiki page
source /home/dvdk/desk-mx-l/desk-mx8m-l-2.0.0-rc2_env.sh
- enter the source tree directory and run the following commands:
dvdk@vagrant:~/desk-mx-l/linux$ make imx_v8_defconfig dvdk@vagrant:~/desk-mx-l/linux$ make Image modules freescale/imx8mm-mito8mmini.dtb freescale/imx8mp-mito8mplus-cb1001.dtb
NOTE: this is the default configuration suitable for the latest target.
- The former command selects the default DESK-MX8M-L configuration, while the latter builds the kernel binary image with the required u-boot header and the kernel device tree.
Default Linux kernel configuration can be changed by using the standard menuconfig, xconfig, or gconfig make target. Subsequent builds just require uImage make target to update the binary image. Once the build process is complete, the kernel binary image is stored into the arch/arm/boot/Image file. Both this file and the kernel device tree can be copied to the tftp root directory /tftpboot/desk-mx-l/ with the following commands:
dvdk@vagrant:~/desk-mx-l$ cp arch/arm64/boot/Image /tftpboot/desk-mx-l/ dvdk@vagrant:~/desk-mx-l$ cp arch/arm64/boot/dts/freescale/*.dtb /tftpboot/desk-mx-l/
Usually, kernel modules are installed with make modules_install command, but this method installs the modules into the /lib/modules directory of your MVM, which is not what you want.
A better way to deploy kernel modules while cross-compiling is
- generate a
.tar.gzarchive - install this archive into the target root file system
User can create such an archive, for example, using the following commands:
dvdk@vagrant:~/desk-mx-l/linux$ mkdir modules-install dvdk@vagrant:~/desk-mx-l/linux$ make INSTALL_MOD_PATH=modules-install modules_install dvdk@vagrant:~/desk-mx-l/linux$ cd modules-install dvdk@vagrant:~/desk-mx-l/linux/modules-install$ tar cvzf ../modules.tar.gz . && cd .. dvdk@vagrant:~/desk-mx-l/linux$
Now copy modules.tar.gz into the target root file system and install them as root with the following command
root@desk-mx8mp:~# tar xvzf modules.tar.gz -C /
