Define a new machine with custom device tree

[hesmar]

Hi, I want to define a new machine that uses a custom device tree. Therefore I created a new machine config file inside my own layer with the following content:

MACHINEOVERRIDES = "jetson-nano-devkit-emmc:3dvl-ecm:${MACHINE}"
require conf/machine/jetson-nano-devkit-emmc.conf

KERNEL_DEVICETREE = "tegra210-p3448-0002-3dvl-ecm-camera-avt.dtb"

Kernel builds fine but there is some issue with the u-boot-bup-payload:

ERROR: u-boot-bup-payload-1.0-r0 do_deploy: ExecutionError('/home/hesmar/Development/3dvisionlabs/embedded/yocto2/yocto-tegra-distro/build/tmp/work/jetson_nano_emmc_3dvl_ecm_avt-3dvl-linux/u-boot-bup-payload/1.0-r0/temp/run.do_deploy.293770', 1, None, None)
ERROR: Logfile of failure stored in: /home/hesmar/Development/3dvisionlabs/embedded/yocto2/yocto-tegra-distro/build/tmp/work/jetson_nano_emmc_3dvl_ecm_avt-3dvl-linux/u-boot-bup-payload/1.0-r0/temp/log.do_deploy.293770
Log data follows:
| DEBUG: Executing python function extend_recipe_sysroot
| NOTE: Direct dependencies are ['/home/hesmar/Development/3dvisionlabs/embedded/yocto2/yocto-tegra-distro/layers/meta-tegra/recipes-bsp/tegra-binaries/tegra-bootfiles_32.7.2.bb:do_populate_sysroot', '/home/hesmar/Development/3dvisionlabs/embedded/yocto2/yocto-tegra-distro/layers/meta-tegra/recipes-bsp/tegra-binaries/tegra-redundant-boot-rollback_32.7.2.bb:do_populate_sysroot', '/home/hesmar/Development/3dvisionlabs/embedded/yocto2/yocto-tegra-distro/layers/meta-tegra/recipes-bsp/tegra-binaries/tegra210-flashtools-native_32.7.2.bb:do_populate_sysroot', 'virtual:native:/home/hesmar/Development/3dvisionlabs/embedded/yocto2/yocto-tegra-distro/layers/meta/recipes-core/coreutils/coreutils_9.0.bb:do_populate_sysroot', 'virtual:native:/home/hesmar/Development/3dvisionlabs/embedded/yocto2/yocto-tegra-distro/layers/meta/recipes-kernel/dtc/dtc_1.6.1.bb:do_populate_sysroot']
| NOTE: Installed into sysroot: []
| NOTE: Skipping as already exists in sysroot: ['tegra-bootfiles', 'tegra-redundant-boot-rollback', 'tegra210-flashtools-native', 'coreutils-native', 'dtc-native', 'mender-custom-flash-layout', 'tegra-flashvars', 'texinfo-dummy-native', 'attr-native', 'libtool-native', 'xz-native', 'gettext-minimal-native', 'tegra-helper-scripts-native', 'gcc-runtime', 'glibc', 'flex-native', 'python3-native', 'linux-libc-headers', 'libgcc', 'm4-native', 'ncurses-native', 'libffi-native', 'zlib-native', 'gdbm-native', 'sqlite3-native', 'util-linux-libuuid-native', 'openssl-native', 'libtirpc-native', 'bzip2-native', 'readline-native', 'libnsl2-native', 'gnu-config-native', 'perl-native', 'make-native']
| DEBUG: Python function extend_recipe_sysroot finished
| DEBUG: Executing python function sstate_task_prefunc
| DEBUG: Python function sstate_task_prefunc finished
| DEBUG: Executing shell function do_deploy
| Board ID(3448) version(200) SKU(0002) revision() from environment
| Signing with zerosbk ...
| 
| Generating signed binaries for 3448-200-0002--1-0-jetson-nano-emmc-3dvl-ecm-avt-mmcblk0p1 ...
| python3 tegraflash.py --bl cboot.bin --bct "jetson-nano-emmc-3dvl-ecm-avt.cfg" --odmdata 0xA4000 --bldtb "tegra210-p3448-0002-p3449-0000-a02.dtb" --applet nvtboot_recovery.bin --cfg flash.xml --chip 0x21 --cmd "sign"
| Welcome to Tegra Flash
| version 1.0.0
| Type ? or help for help and q or quit to exit
| Use ! to execute system commands
| 
| [   0.0080 ] Using default ramcode: 0
| [   0.0080 ] Disable BPMP dtb trim, using default dtb
| [   0.0080 ]
| [   0.0099 ] tegrasign --getmode mode.txt --key None
| [   0.0106 ] Assuming zero filled SBK key
| [   0.0108 ]
| [   0.0111 ] Generating RCM messages
| [   0.0129 ] tegrarcm --listrcm rcm_list.xml --chip 0x21 0 --download rcm nvtboot_recovery.bin 0 0
| [   0.0134 ] RCM 0 is saved as rcm_0.rcm
| [   0.0140 ] RCM 1 is saved as rcm_1.rcm
| [   0.0142 ] List of rcm files are saved in rcm_list.xml
| [   0.0143 ]
| [   0.0143 ] Signing RCM messages
| [   0.0161 ] tegrasign --key None --list rcm_list.xml --pubkeyhash pub_key.key
| [   0.0168 ] Assuming zero filled SBK key
| [   0.0218 ]
| [   0.0218 ] Copying signature to RCM mesages
| [   0.0236 ] tegrarcm --chip 0x21 0 --updatesig rcm_list_signed.xml
| [   0.0249 ]
| [   0.0249 ] Parsing partition layout
| [   0.0267 ] tegraparser --pt flash.xml.tmp
| [   0.0278 ]
| [   0.0278 ] Creating list of images to be signed
| [   0.0296 ] tegrahost --chip 0x21 0 --partitionlayout flash.xml.bin --list images_list.xml
| [   0.0306 ] Stat for tegra210-p3448-0002-p3449-0000-a02.dtb failed
| [   0.0310 ]
| Error: Return value 4
| Command tegrahost --chip 0x21 0 --partitionlayout flash.xml.bin --list images_list.xml
| Board ID(3448) version(300) SKU(0002) revision() from environment
| Signing with zerosbk ...
| 
| Generating signed binaries for 3448-300-0002--1-0-jetson-nano-emmc-3dvl-ecm-avt-mmcblk0p1 ...
| python3 tegraflash.py --bl cboot.bin --bct "jetson-nano-emmc-3dvl-ecm-avt.cfg" --odmdata 0xA4000 --bldtb "tegra210-p3448-0002-p3449-0000-b00.dtb" --applet nvtboot_recovery.bin --cfg flash.xml --chip 0x21 --cmd "sign"
| Welcome to Tegra Flash
| version 1.0.0
| Type ? or help for help and q or quit to exit
| Use ! to execute system commands
| 
| [   0.0054 ] Using default ramcode: 0
| [   0.0054 ] Disable BPMP dtb trim, using default dtb
| [   0.0054 ]
| [   0.0073 ] tegrasign --getmode mode.txt --key None
| [   0.0080 ] Assuming zero filled SBK key
| [   0.0082 ]
| [   0.0084 ] Generating RCM messages
| [   0.0103 ] tegrarcm --listrcm rcm_list.xml --chip 0x21 0 --download rcm nvtboot_recovery.bin 0 0
| [   0.0109 ] RCM 0 is saved as rcm_0.rcm
| [   0.0116 ] RCM 1 is saved as rcm_1.rcm
| [   0.0118 ] List of rcm files are saved in rcm_list.xml
| [   0.0118 ]
| [   0.0118 ] Signing RCM messages
| [   0.0137 ] tegrasign --key None --list rcm_list.xml --pubkeyhash pub_key.key
| [   0.0143 ] Assuming zero filled SBK key
| [   0.0194 ]
| [   0.0194 ] Copying signature to RCM mesages
| [   0.0215 ] tegrarcm --chip 0x21 0 --updatesig rcm_list_signed.xml
| [   0.0230 ]
| [   0.0230 ] Parsing partition layout
| [   0.0250 ] tegraparser --pt flash.xml.tmp
| [   0.0262 ]
| [   0.0262 ] Creating list of images to be signed
| [   0.0281 ] tegrahost --chip 0x21 0 --partitionlayout flash.xml.bin --list images_list.xml
| [   0.0287 ] Stat for tegra210-p3448-0002-p3449-0000-b00.dtb failed
| [   0.0291 ]
| Error: Return value 4
| Command tegrahost --chip 0x21 0 --partitionlayout flash.xml.bin --list images_list.xml
| Board ID(3448) version(400) SKU(0002) revision() from environment
| Signing with zerosbk ...
| 
| Generating signed binaries for 3448-400-0002--1-0-jetson-nano-emmc-3dvl-ecm-avt-mmcblk0p1 ...
| python3 tegraflash.py --bl cboot.bin --bct "jetson-nano-emmc-3dvl-ecm-avt.cfg" --odmdata 0xA4000 --bldtb "tegra210-p3448-0002-p3449-0000-b00.dtb" --applet nvtboot_recovery.bin --cfg flash.xml --chip 0x21 --cmd "sign"
| Welcome to Tegra Flash
| version 1.0.0
| Type ? or help for help and q or quit to exit
| Use ! to execute system commands
| 
| [   0.0066 ] Using default ramcode: 0
| [   0.0066 ] Disable BPMP dtb trim, using default dtb
| [   0.0066 ]
| [   0.0085 ] tegrasign --getmode mode.txt --key None
| [   0.0096 ] Assuming zero filled SBK key
| [   0.0099 ]
| [   0.0101 ] Generating RCM messages
| [   0.0118 ] tegrarcm --listrcm rcm_list.xml --chip 0x21 0 --download rcm nvtboot_recovery.bin 0 0
| [   0.0124 ] RCM 0 is saved as rcm_0.rcm
| [   0.0131 ] RCM 1 is saved as rcm_1.rcm
| [   0.0132 ] List of rcm files are saved in rcm_list.xml
| [   0.0132 ]
| [   0.0132 ] Signing RCM messages
| [   0.0149 ] tegrasign --key None --list rcm_list.xml --pubkeyhash pub_key.key
| [   0.0155 ] Assuming zero filled SBK key
| [   0.0208 ]
| [   0.0208 ] Copying signature to RCM mesages
| [   0.0226 ] tegrarcm --chip 0x21 0 --updatesig rcm_list_signed.xml
| [   0.0238 ]
| [   0.0238 ] Parsing partition layout
| [   0.0255 ] tegraparser --pt flash.xml.tmp
| [   0.0266 ]
| [   0.0266 ] Creating list of images to be signed
| [   0.0283 ] tegrahost --chip 0x21 0 --partitionlayout flash.xml.bin --list images_list.xml
| [   0.0289 ] Stat for tegra210-p3448-0002-p3449-0000-b00.dtb failed
| [   0.0294 ]
| Error: Return value 4
| Command tegrahost --chip 0x21 0 --partitionlayout flash.xml.bin --list images_list.xml
| Board ID(3448) version(401) SKU(0002) revision() from environment
| Signing with zerosbk ...
| 
| Generating signed binaries for 3448-401-0002--1-0-jetson-nano-emmc-3dvl-ecm-avt-mmcblk0p1 ...
| python3 tegraflash.py --bl cboot.bin --bct "jetson-nano-emmc-3dvl-ecm-avt.cfg" --odmdata 0xA4000 --bldtb "tegra210-p3448-0002-p3449-0000-b00.dtb" --applet nvtboot_recovery.bin --cfg flash.xml --chip 0x21 --cmd "sign"
| Welcome to Tegra Flash
| version 1.0.0
| Type ? or help for help and q or quit to exit
| Use ! to execute system commands
| 
| [   0.0051 ] Using default ramcode: 0
| [   0.0051 ] Disable BPMP dtb trim, using default dtb
| [   0.0051 ]
| [   0.0069 ] tegrasign --getmode mode.txt --key None
| [   0.0075 ] Assuming zero filled SBK key
| [   0.0077 ]
| [   0.0079 ] Generating RCM messages
| [   0.0096 ] tegrarcm --listrcm rcm_list.xml --chip 0x21 0 --download rcm nvtboot_recovery.bin 0 0
| [   0.0102 ] RCM 0 is saved as rcm_0.rcm
| [   0.0107 ] RCM 1 is saved as rcm_1.rcm
| [   0.0109 ] List of rcm files are saved in rcm_list.xml
| [   0.0109 ]
| [   0.0109 ] Signing RCM messages
| [   0.0127 ] tegrasign --key None --list rcm_list.xml --pubkeyhash pub_key.key
| [   0.0132 ] Assuming zero filled SBK key
| [   0.0189 ]
| [   0.0189 ] Copying signature to RCM mesages
| [   0.0208 ] tegrarcm --chip 0x21 0 --updatesig rcm_list_signed.xml
| [   0.0220 ]
| [   0.0221 ] Parsing partition layout
| [   0.0239 ] tegraparser --pt flash.xml.tmp
| [   0.0249 ]
| [   0.0250 ] Creating list of images to be signed
| [   0.0267 ] tegrahost --chip 0x21 0 --partitionlayout flash.xml.bin --list images_list.xml
| [   0.0277 ] Stat for tegra210-p3448-0002-p3449-0000-b00.dtb failed
| [   0.0281 ]
| Error: Return value 4
| Command tegrahost --chip 0x21 0 --partitionlayout flash.xml.bin --list images_list.xml
| WARNING: exit code 1 from a shell command.
ERROR: Task (/home/hesmar/Development/3dvisionlabs/embedded/yocto2/yocto-tegra-distro/layers/meta-tegra/recipes-bsp/u-boot/u-boot-bup-payload.bb:do_deploy) failed with exit code '1'

It seems, it is trying to sign the wrong dtb. How can I adapt the package to use my custom device tree?

Thanks,
Markus

[madisongh]

Sounds like you need to add a bbappend for the tegra-flashvars recipe with a flashvars file for your custom machine that sets the DTBFILE variable to your customized DTB file.

[hesmar]

Thanks, that helped! 🙂

[yrodriguez31]

Hello, Where do you store the device-tree to make it available by the kernel ?

[madisongh]

Hello, Where do you store the device-tree to make it available by the kernel ?

There's information on this wiki page about how to set up a custom device tree. If you have a more specific question, feel free to start a new discussion thread.