Yocto Build U-Boot: Difference between revisions
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Obtain sources: | Obtain sources: | ||
$ git clone {{#var:U-BOOT_GIT}} | $ git clone {{#var:U-BOOT_GIT}} | ||
$ cd uboot-imx | |||
$ git checkout -b {{#var:U-BOOT_BRANCH}} origin/{{#var:U-BOOT_BRANCH}} | $ git checkout -b {{#var:U-BOOT_BRANCH}} origin/{{#var:U-BOOT_BRANCH}} | ||
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$ source {{#var:TOOLCHAIN_LOCATION}} | $ source {{#var:TOOLCHAIN_LOCATION}} | ||
$ make mrproper | $ make mrproper | ||
Choose | |||
$ make {{#var:U-BOOT_SD_DEFCONFIG}} | Choose one of the following configurations: | ||
$ make {{#var:U-BOOT_SD_DEFCONFIG}} # For booting from SD card/eMMC | |||
$ make {{#var:U-BOOT_NAND_DEFCONFIG}} | $ make {{#var:U-BOOT_NAND_DEFCONFIG}} # For booting from NAND flash | ||
$ make -j4 | $ make -j4 | ||
= Install the built U-Boot on an SD card = | |||
<pre> | <pre> | ||
$ sudo dd if=SPL of=/dev/sdX bs=1K seek=1; sync | $ sudo dd if=SPL of=/dev/sdX bs=1K seek=1; sync | ||
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= Update your U-Boot out of Yocto tree = | = Update your U-Boot out of Yocto tree = | ||
<pre> | <pre> | ||
$ git pull | $ git pull | ||
</pre> | </pre> | ||
Revision as of 10:58, 8 June 2017
Yocto Build U-Boot from source code
Toolchain installation for out of Yocto builds
To install the toolchain, follow Yocto Toolchain installation.
Build U-Boot out of Yocto tree
Obtain sources:
$ git clone $ cd uboot-imx $ git checkout -b origin/
Build U-Boot:
$ source
$ make mrproper
Choose one of the following configurations: $ make # For booting from SD card/eMMC $ make # For booting from NAND flash
$ make -j4
Install the built U-Boot on an SD card
$ sudo dd if=SPL of=/dev/sdX bs=1K seek=1; sync $ sudo dd if=u-boot.img of=/dev/sdX bs=1K seek=69; sync (Replace /dev/sdX with the correct device)
In case of UBI copy it to the SD card (assuming you are using our recovery SD card):
$ sudo cp SPL /media/rootfs/opt/images/Yocto/SPL-nand $ sudo cp u-boot.img /media/rootfs/opt/images/Yocto/ or (depend on your build): $ sudo cp SPL /media/rootfs/opt/images/Yocto/SPL-sd $ sudo cp u-boot.img /media/rootfs/opt/images/Yocto/
And eject the SD card gracefully from host machine.
Update your U-Boot out of Yocto tree
$ git pull