Yocto Build U-Boot: Difference between revisions

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The final boot image contains multiple firmware files. The following procedure builds the final image.
The final boot image contains multiple firmware files. The following procedure builds the final image.


# Create imx-boot-tools directory
Create imx-boot-tools directory
  $ mkdir imx-boot-tools
  $ mkdir imx-boot-tools
  $ cd imx-boot-tools
  $ cd imx-boot-tools


{{#ifeq: {{#var:SOC_FAMILY}} | imx8 |
{{#ifeq: {{#var:SOC_FAMILY}} | imx8 |
<br>
 
# Download SC firmware
Download SC firmware
  $ git clone {{#var:META_VARISCITE_GIT}} -b {{#var:META_VARISCITE_BRANCH}}
  $ git clone {{#var:META_VARISCITE_GIT}} -b {{#var:META_VARISCITE_BRANCH}}
  $ cp meta-variscite-imx/recipes-bsp/imx-sc-firmware/imx-sc-firmware/{{#var:SC_FIRMWARE}} scfw_tcm.bin
  $ cp meta-variscite-imx/recipes-bsp/imx-sc-firmware/imx-sc-firmware/{{#var:SC_FIRMWARE}} scfw_tcm.bin


# Download SECO firmware
Download SECO firmware
  $ wget {{#var:NXP_FIRMWARE_URL}}/{{#var:NXP_FIRMWARE}}.bin
  $ wget {{#var:NXP_FIRMWARE_URL}}/{{#var:NXP_FIRMWARE}}.bin
  $ chmod +x {{#var:NXP_FIRMWARE}}.bin
  $ chmod +x {{#var:NXP_FIRMWARE}}.bin
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  <br>
  <br>
# Download DDR and HDMI firmware
Download DDR and HDMI firmware
  $ wget {{#var:NXP_FIRMWARE_URL}}/{{#var:NXP_FIRMWARE}}.bin
  $ wget {{#var:NXP_FIRMWARE_URL}}/{{#var:NXP_FIRMWARE}}.bin
  $ chmod +x {{#var:NXP_FIRMWARE}}.bin
  $ chmod +x {{#var:NXP_FIRMWARE}}.bin
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{{#ifeq: {{#var:SOC_FAMILY}}|imx8|
{{#ifeq: {{#var:SOC_FAMILY}}|imx8|
<br>
<br>
# Download and build imx_mkimage
Download and build 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}}
  $ cd imx-mkimage
  $ cd imx-mkimage
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<br>
<br>
# 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 {{#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}}|imx8mm|$ git clone {{#var:META_VARISCITE_GIT}} -b {{#var:META_VARISCITE_BRANCH}}|}}
  {{#ifeq: {{#var:SOC}}|imx8mm|$ git clone {{#var:META_VARISCITE_GIT}} -b {{#var:META_VARISCITE_BRANCH}}|}}
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  $ cd ..
  $ cd ..


# Copy u-boot binaries
Copy u-boot binaries
  $ cp ../tools/mkimage mkimage_uboot
  $ cp ../tools/mkimage mkimage_uboot
  $ cp ../u-boot.bin .
  $ cp ../u-boot.bin .
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{{#ifeq: {{#var:SOC_FAMILY}}|imx8|
{{#ifeq: {{#var:SOC_FAMILY}}|imx8|
<br>
<br>
# Build boot image
Build boot image
  $ make -f soc.mak clean
  $ make -f soc.mak clean
  $ make -f soc.mak SOC={{#var:IMX_MKIMAGE_SOC}} MKIMG=./mkimage_imx8 PAD_IMAGE=./pad_image.sh flash
  $ make -f soc.mak SOC={{#var:IMX_MKIMAGE_SOC}} MKIMG=./mkimage_imx8 PAD_IMAGE=./pad_image.sh flash
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<br>
<br>
# Build boot image
Build boot image
  $ make -f soc.mak clean  
  $ make -f soc.mak clean  
  $ make -f soc.mak SOC={{#var:IMX_MKIMAGE_SOC}} dtbs={{#var:DEFAULT_DTB}} MKIMG=./mkimage_imx8 PAD_IMAGE=./pad_image.sh CC=gcc OUTIMG={{#var:U-BOOT_SD_IMAGE_NAME}} flash_evk
  $ make -f soc.mak SOC={{#var:IMX_MKIMAGE_SOC}} dtbs={{#var:DEFAULT_DTB}} MKIMG=./mkimage_imx8 PAD_IMAGE=./pad_image.sh CC=gcc OUTIMG={{#var:U-BOOT_SD_IMAGE_NAME}} flash_evk

Revision as of 17:57, 20 June 2019

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


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