Adding u-boot-fw-utils for i.MX to yocto project

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Adding u-boot-fw-utils for i.MX to yocto project

Adding u-boot-fw-utils for i.MX to yocto project

         In recent months, some I.MX customers hope to compile u-boot-fw-utils in yocto and get fw_printenv & fw_setenv tools.

         Although there are u-boot-fw-utils bblayers in Yocto recipes, by default, u-boot-fw-utils is not based on u-boot-imx, but downloaded from the u-boot source website, when using bitbake When u-boot-fw-utils compiles it, it will fail to compile.

         For example:

# cd  ~/imx-yocto-bsp-5.4.3_1.0.0

# DISTRO=fsl-imx-fb MACHINE=imx6sxsabresd source imx-setup-release.sh -b build_sabresd

# bitbake u-boot-fw-utils -c compile

pastedImage_1.png

         If changing .config to be mx6sxsabresd_optee_defconfig in the top directory of u-boot source code, new errors will occur, like descriptions in the link:

         https://community.nxp.com/message/1318081?commentID=1318081#comment-1318081

 

         The root cause is that the u-boot is not u-boot-imx.

         If we did the test below, it is easy to validate it.

  •      Compiling u-boot

# bitbake u-boot-imx -c compile

         After compilation is done, u-boot-imx source code will be released .

  •      Changing u-boot source code of u-boot-fw-utils directory

         Replace u-boot source code in u-boot-fw-utils directory with u-boot-imx source code. Then continue to compile u-boot-fw-utils

# bitbake u-boot-fw-utils -c compile

         We will find it can be compiled successfully.

This shows that when u-boot-fw-utils is compiled, the downloaded u-boot source code must be u-boot-imx.

         In order to achieve this, we need to add recipes to yocto's u-boot-imx, and we can successfully compile fw_printevn and fw_setenv through the bitbake command.

Please follow these steps to add u-boot-fw-utils for i.mx to yocto!

  1. copy 2 files in attacments to ~/imx-yocto-bsp-5.4.3_1.0.0/sources/meta-imx/meta-bsp/recipes-bsp/u-boot
  2. cd ~/imx-yocto-bsp-5.4.3_1.0.0
  3. run below comands

# DISTRO=fsl-imx-fb MACHINE=imx6sxsabresd source imx-setup-release.sh -b build_sabresd

# bitbake u-boot-imx-fw-utils -c compile

# bitbake u-boot-imx-fw-utils -c install

 

Then you will get fw_printenv & fw_setenv

pastedImage_4.png

[Comment]

         If i.MX users are using other version of linux BSP, she only need to modify the following content of u-boot-imx-common_2019.04.inc to compile u-boot-fw-utils.

……

LIC_FILES_CHKSUM = "file://Licenses/gpl-2.0.txt;md5=b234ee4d69f5fce4486a80fdaf4a4263"

 

UBOOT_SRC ?= "git://source.codeaurora.org/external/imx/uboot-imx.git;protocol=https"

SRCBRANCH = "lf-5.4.y_v2019.04"

SRC_URI = "${UBOOT_SRC};branch=${SRCBRANCH} \

"

SRCREV = "228843cdf5435d4bd69f42a6015f78761ff4cc0d"

……

         Then compile it following above steps.

         Example for L4.14.98_2.0.0:

1.Copy u-boot-imx-common_2019.04.inc & u-boot-imx-fw-utils_2019.04.bb to

~/imx-release-bsp-4.14.98-2.0.0/sources/meta-fsl-bsp-release/imx/meta-bsp/recipes-bsp/u-boot/

2.Rename files name according to u-boot version

u-boot-imx-common_2018.03.inc

    u-boot-imx-fw-utils_2018.03.bb

3.Modifying u-boot-imx-common_2018.03.inc

In the directory, there is u-boot-imx_2018.03.bb file, open it, and find the link of u-boot and check sum, and use lines below to replace those lines in u-boot-imx-common_2018.03.inc

In u-boot-imx_2018.03.bb file:

……

LICENSE = "GPLv2+"

LIC_FILES_CHKSUM = "file://Licenses/gpl-2.0.txt;md5=b234ee4d69f5fce4486a80fdaf4a4263"

 

UBOOT_SRC ?= "git://source.codeaurora.org/external/imx/uboot-imx.git;protocol=https"

SRCBRANCH = "imx_v2018.03_4.14.98_2.0.0_ga"

SRC_URI = "${UBOOT_SRC};branch=${SRCBRANCH}"

SRCREV = "87a19df5e462f1f63e8a6d2973c7fb9e95284d04"

……

Then in u-boot-imx-common_2018.03.inc, there is the same contents as above:

pastedImage_6.png

Save it and exit. Go back to the top directory of yocto: ~/imx-release-bsp-4.14.98-2.0.0

# cd ~/imx-release-bsp-4.14.98-2.0.0

# DISTRO=fsl-imx-fb MACHINE=imx6sxsabresd source fsl-setup-release.sh -b build_sabresd

# bitbake u-boot-imx-fw-utils -c compile

# bitbake u-boot-imx-fw-utils -c install

pastedImage_7.png

         The same method can be used for other Linux BSP versions.

 

 

 

NXP TIC Team

Weidong Sun

05/28/2020

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‎05-27-2020 09:25 PM
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