Difference between revisions of "DESK-MX6-L/Development/Building Linux kernel"
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{| style="border-collapse:collapse; " | {| style="border-collapse:collapse; " | ||
| − | ! colspan="4" style="width:100%; text-align:left" ; border-bottom:solid 2px #ededed" |History | + | !colspan="4" style="width:100%; text-align:left"; border-bottom:solid 2px #ededed"|History |
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| − | ! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white" | | + | !style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Version |
| − | ! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white" | | + | !style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Issue Date |
| − | + | !style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Notes | |
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|- | |- | ||
| + | |style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|1.0.0 | ||
| + | |style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|Apr 2021 | ||
| + | |style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|First DESK release | ||
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| − | <section end= | + | <section end=History/> |
__FORCETOC__ | __FORCETOC__ | ||
| − | <section begin= | + | <section begin=Body/> |
==Building Linux== | ==Building Linux== | ||
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===Quick reference=== | ===Quick reference=== | ||
{| class="wikitable" border="1" | {| class="wikitable" border="1" | ||
| − | ! colspan="2" | Repository Information | + | !colspan="2" | Repository Information |
|- | |- | ||
! URL | ! URL | ||
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|- | |- | ||
! stable branch | ! stable branch | ||
| − | | desk- | + | | desk-mx-l-1.x.x |
|- | |- | ||
! stable tag | ! stable tag | ||
| − | | desk-mx6-l- | + | | desk-mx6-l-1.0.0 |
|} | |} | ||
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{| class="wikitable" border="1" | {| class="wikitable" border="1" | ||
| − | ! colspan="2" | Build Information | + | !colspan="2" | Build Information |
|- | |- | ||
! defconfig | ! defconfig | ||
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|- | |- | ||
! SBCX | ! SBCX | ||
| − | | | + | | imx6q-sbcx-cb0012.dtb |
|} | |} | ||
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<pre class="workstation-terminal"> | <pre class="workstation-terminal"> | ||
| − | cd | + | cd desk-mx-l/linux |
</pre> | </pre> | ||
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<pre class="workstation-terminal"> | <pre class="workstation-terminal"> | ||
| − | source ~/desk-mx-l/desk-mx6-l- | + | source ~/desk-mx-l/desk-mx6-l-1.0.0_env.sh |
</pre> | </pre> | ||
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<pre class="workstation-terminal"> | <pre class="workstation-terminal"> | ||
make imx_v7_desk_defconfig | make imx_v7_desk_defconfig | ||
| − | make UIMAGE_LOADADDR=0x10008000 uImage | + | make UIMAGE_LOADADDR=0x10008000 uImage imx6q-sbcx-cb0012.dtb |
</pre> | </pre> | ||
'''NOTE''': this is the default configuration suitable for latest target. | '''NOTE''': this is the default configuration suitable for latest target. | ||
| − | :The former command selects the default DESK-MX6-L configuration, while the latter builds the kernel binary image with the required | + | :The former command selects the default DESK-MX6-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 <code>menuconfig</code>, <code>xconfig</code>, or <code>gconfig</code> make target. Subsequent builds just require <code>uImage</code> make target to update the binary image. Once the build process is complete, the kernel binary image is stored into the <code>arch/arm/boot/uImage</code> file. Both this file and the kernel device tree can be copied to the tftp root directory <code>/tftpboot/desk-mx-l/</code> with the following commands: | Default Linux kernel configuration can be changed by using the standard <code>menuconfig</code>, <code>xconfig</code>, or <code>gconfig</code> make target. Subsequent builds just require <code>uImage</code> make target to update the binary image. Once the build process is complete, the kernel binary image is stored into the <code>arch/arm/boot/uImage</code> file. Both this file and the kernel device tree can be copied to the tftp root directory <code>/tftpboot/desk-mx-l/</code> with the following commands: | ||
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</pre> | </pre> | ||
| − | Usually, kernel modules are installed with <code>make modules_install</code> command, but this method installs the modules into the <code>/lib/modules</code> directory of | + | Usually, kernel modules are installed with <code>make modules_install</code> command, but this method installs the modules into the <code>/lib/modules</code> directory of you MVM, which is not what you want. |
A better way to deploy kernel modules while cross-compiling is | A better way to deploy kernel modules while cross-compiling is | ||
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<pre class="workstation-terminal"> | <pre class="workstation-terminal"> | ||
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mkdir modules-install | mkdir modules-install | ||
make INSTALL_MOD_PATH=modules-install modules_install | make INSTALL_MOD_PATH=modules-install modules_install | ||
Revision as of 13:19, 15 July 2021
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| History | |||
|---|---|---|---|
| Version | Issue Date | Notes | |
| 1.0.0 | Apr 2021 | First DESK 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-mx-l-1.x.x |
| stable tag | desk-mx6-l-1.0.0 |
| Build Information | |
|---|---|
| defconfig | imx_v7_desk_defconfig |
| Kernel binary | UIMAGE_LOADADDR=0x10008000 uImage |
| Platform | DTB |
| SBCX | imx6q-sbcx-cb0012.dtb |
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
- configure the build environment
source ~/desk-mx-l/desk-mx6-l-1.0.0_env.sh
- enter the source tree directory and run the following commands:
make imx_v7_desk_defconfig make UIMAGE_LOADADDR=0x10008000 uImage imx6q-sbcx-cb0012.dtb
NOTE: this is the default configuration suitable for latest target.
- The former command selects the default DESK-MX6-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/uImage 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:
cp arch/arm/boot/uImage /tftpboot/desk-mx-l/ cp arch/arm/boot/dts/*.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 you 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:
mkdir modules-install make INSTALL_MOD_PATH=modules-install modules_install cd modules-install && tar cvzf ../modules.tar.gz . && cd ..
Now copy modules.tar.gz into the target root file system and install them as root with the following command
tar xvzf modules.tar.gz -C /
