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README.md

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Disclaimer

!IMPORTANT! This is a development branch, that is not relelased by CompuLab officially yet

Supported Compulab Products

Configuring the build

Setup Yocto environment

  • WorkDir:
mkdir compulab-nxp-bsp && cd compulab-nxp-bsp
  • Set a CompuLab machine:
Machine Command Line
ucm-imx8m-plus export MACHINE=ucm-imx8m-plus
ucm-imx8m-plus-sbev export MACHINE=ucm-imx8m-plus-sbev
mcm-imx8m-plus export MACHINE=mcm-imx8m-plus
som-imx8m-plus export MACHINE=som-imx8m-plus
iot-gate-imx8plus export MACHINE=iot-gate-imx8plus
sbc-iot-imx8plus export MACHINE=iot-gate-imx8plus
iotdin-imx8p export MACHINE=iotdin-imx8p

Initialize repo manifests

  • NXP
repo init -u https://github.com/nxp-imx/imx-manifest.git -b imx-linux-scarthgap -m imx-6.6.23-2.0.0.xml
  • CompuLab
wget --directory-prefix .repo/local_manifests https://raw.githubusercontent.com/compulab-yokneam/meta-bsp-imx8mp/scarthgap/scripts/meta-bsp-imx8mp.xml
  • Sync Them all
repo sync

Setup build environment

  • Initialize the build environment:
source compulab-setup-env build-${MACHINE}

sed -i '$ a DRAM_CONF = "d2d4"' ${BUILDDIR}/conf/local.conf
  • Enable the d1d8 dram setting's subset:
sed -i '/DRAM_CONF/d' ${BUILDDIR}/conf/local.conf

Get back to the build environment

In order to use the already created build environment issue these commands:

cd /path/to/compulab-nxp-bsp
repo sync
source setup-environment build-${MACHINE}

Build targets

  • Main targets:
Target Command The target file location
full image bitbake -k imx-image-full ${BUILDDIR}/tmp/deploy/images/${MACHINE}/imx-image-full-${MACHINE}.wic.zst
boot loader bitbake -k imx-boot ${BUILDDIR}/tmp/deploy/images/${MACHINE}/imx-boot-tagged
  • Other available targets (no desktop environment):
Target Command The target file location
fsl network image bitbake -k fsl-image-network-full-cmdline ${BUILDDIR}/tmp/deploy/images/${MACHINE}/fsl-image-network-full-cmdline-${MACHINE}.wic.zst
oe core image bitbake -k core-image-full-cmdline ${BUILDDIR}/tmp/deploy/images/${MACHINE}/core-image-full-cmdline-${MACHINE}.wic.zst

Deployment

Bootable sd card method

Host Machine

  • Goto the tmp/deploy/images/${MACHINE} directory:
cd tmp/deploy/images/${MACHINE}
  • Deploy the image:
zstd -dc imx-image-full-${MACHINE}.wic.zst > imx-image-full-${MACHINE}.wic
sudo bmaptool copy --bmap imx-image-full-${MACHINE}.wic.bmap imx-image-full-${MACHINE}.wic /dev/sdX

Target Device

  • Turn off the device
  • Insert the created sd-card
  • Turn on the device and issue AltBoot

UUU method

Host Machine

  • Goto the tmp/deploy/images/${MACHINE} directory:
cd tmp/deploy/images/${MACHINE}
  • Issue uuu command with the root credentials:
zstd -dc imx-image-full-${MACHINE}.wic.zst > imx-image-full-${MACHINE}.wic
sudo uuu -v -b emmc_all imx-boot-tagged mx-image-full-${MACHINE}.wic

Target Device

NOTE The target device must be in SDP or FB mode
MODE Procedure to turn on note
SDP mmc dev 2 1; mmc erase 0x0 0x1000; reset For advanced users only
FB fastboot 0