Yocto Build U-Boot: Difference between revisions

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Download imx_mkimage:
Download imx_mkimage:
  $ git clone {{#var:NXP_IMX_GIT}}/imx-mkimage -b {{#var:NXP_IMX_BRANCH}}
  $ git clone {{#var:NXP_IMX_GIT}}/imx-mkimage -b {{#var:NXP_IMX_BRANCH}}
  $ cp imx-mkimage/iMX8M/*.c imx-mkimage/iMX8M/*.sh imx-mkimage/iMX8M/soc.mak {{#ifeq: {{#var:YOCTO_NAME}}|Morty||imx-mkimage/scripts/pad_image.sh}} .
  $ cp imx-mkimage/iMX8M/*.c imx-mkimage/iMX8M/*.sh {{#ifeq: {{#var:YOCTO_NAME}}|Morty||imx-mkimage/scripts/pad_image.sh}} .
}}
}}


Download and build ATF:
Download and build ATF:
  $ git clone {{#var:NXP_IMX_GIT}}/imx-atf -b {{#var:NXP_IMX_BRANCH}}
  $ git clone {{#var:NXP_IMX_GIT}}/imx-atf -b {{#var:NXP_IMX_BRANCH}}
  {{#ifeq: {{#var:SOC_FAMILY}}|imx8m|$ git clone {{#var:META_VARISCITE_GIT}} -b {{#var:META_VARISCITE_BRANCH}}|}}
  {{#ifeq: {{#var:SOC_FAMILY}}|imx8m|
$ git clone {{#var:META_VARISCITE_GIT}} -b {{#var:META_VARISCITE_BRANCH}}
$ cp ../meta-variscite-imx/recipes-bsp/imx-mkimage/files/soc.mak .
|
}}
  $ cd imx-atf
  $ cd imx-atf
  $ source {{#var:TOOLCHAIN_LOCATION}}
  $ source {{#var:TOOLCHAIN_LOCATION}}
  $ unset LDFLAGS
  $ unset LDFLAGS
  {{#ifeq: {{#var:SOC_FAMILY}}|imx8m|$ git apply ../meta-variscite-imx/recipes-bsp/imx-atf/imx-atf/*|}}
  {{#ifeq: {{#var:SOC_FAMILY}}|imx8m|
{{#ifeq: {{#var:FSL_BSP_VERSION}}|L4.14.78-1.0.0_ga|
$ git apply ../meta-variscite-imx/recipes-bsp/imx-atf/imx-atf/* |
{{#ifeq: {{#var:SOC}}|imx8mn|
$ git apply ../meta-variscite-imx/recipes-bsp/imx-atf/imx-atf/*|
{#ifeq: {{#var:SOC}}|imx8mm|git apply ../meta-variscite-imx/recipes-bsp/imx-atf/imx-atf/imx8mm* ../meta-variscite-imx/recipes-bsp/imx-atf/imx-atf/imx8m-* |
$ git apply ../meta-variscite-imx/recipes-bsp/imx-atf/imx-atf/imx8m-*|}} }} }} }}
 
  $ make PLAT={{#var:IMX_ATF_PLAT}} bl31
  $ make PLAT={{#var:IMX_ATF_PLAT}} bl31
  $ cp build/{{#var:IMX_ATF_PLAT}}/release/bl31.bin ..
  $ cp build/{{#var:IMX_ATF_PLAT}}/release/bl31.bin ..

Revision as of 11:21, 21 January 2020

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 https://github.com/varigit/uboot-imx.git -b imx_v2015.04_4.1.15_1.1.0_ga_var03
$ cd uboot-imx

Configure compilation environment:

$ source /opt/fslc-x11/2.2.1/environment-setup-armv7at2hf-neon-fslc-linux-gnueabi

Cleanup everything:

$ make mrproper

Select one of the following configurations:

For booting from SD card/eMMC:
$ make mx6var_som_sd_defconfig

For booting from NAND flash:
$ make mx6var_som_nand_defconfig

Build U-Boot:

$ make -j4


$ make PLAT= bl31
$ cp build//release/bl31.bin ..
$ cd ..

Copy U-Boot binaries:

$ cp ../tools/mkimage mkimage_uboot
$ cp ../u-boot.bin .

Build boot image:

$ make -f soc.mak clean
$ make -f soc.mak SOC= dtbs= MKIMG=./mkimage_imx8 PAD_IMAGE=./pad_image.sh CC=gcc OUTIMG=u-boot.img-sd flash_evk

}}

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)

If you want to use our recovery SD card to flash the built U-Boot to NAND flash/eMMC, then copy it to the appropriate location in the SD card:

$ sudo cp SPL /media/rootfs/opt/images/... 
$ sudo cp u-boot.img /media/rootfs/opt/images/...

And eject the SD card gracefully from host machine.


Note: If you manually upgrade an existing U-Boot, and you have an old environment saved, it is a good idea to reset your environment to the new default (see Environment handling commands)

Update your U-Boot out of Yocto tree

$ git pull