Difference between revisions of "Poky manual"

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(Setup)
 
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 +
==<font color="blue">Description</font>==
 +
Build the firmware for Elphel 10393 series camera systems from scratch.
 +
 +
Prebuilt releases can be found [https://community.elphel.com/files/393/ here].
 +
 
==<font color="blue">Use cases</font>==
 
==<font color="blue">Use cases</font>==
* Linux kernel update when adding/developing a driver
+
* Update Linux Kernel when developing a driver
* When an application needs to be included into the firmware image archive
+
* Include application to the default firmware package
 
* Update Elphel's PHP extension
 
* Update Elphel's PHP extension
 
* C/C++ applications if developed on PC require a cross-compiler and require Yocto installation or some other alternative.
 
* C/C++ applications if developed on PC require a cross-compiler and require Yocto installation or some other alternative.
  
Other projects that use Python, PHP, Javascript, HTML, C/C++ on hardware (compiler is included in the firmware image) do not require this SDK use but it makes the process more convenient, e.g. by copying the built packages straight to the target hardware.
+
Other projects written in Python, PHP, Javascript, HTML, C/C++ (gcc is installed on the system board) can be developed on the camera. Installing the framework is not required but it can simplify the development process.
  
 
==<font color="blue">Description</font>==
 
==<font color="blue">Description</font>==
  
 
* Building embedded Linux image for Zynq ARMv7 platform - Elphel 10393 board
 
* Building embedded Linux image for Zynq ARMv7 platform - Elphel 10393 board
* Yocto Poky revision = 2.7.1 (Warrior)
+
* Yocto Poky revision = 2.7.1 (Warrior) - <font color="green">builds in Kubuntu 20.04.</font> <font color="red">Older OSes are not supported. Roll back to get built in 16.04.</font>
* Yocto Poky revision = 2.4 (Rocko)
+
* <s>Yocto Poky revision = 2.4 (Rocko) - <font color="green">builds in Kubuntu 16.04.</font> <font color="red">Won't build in 18.04 or 20.04.</font></s>
 
* <s>Yocto Poky revision = 2.0 (Jethro)</s>
 
* <s>Yocto Poky revision = 2.0 (Jethro)</s>
  
Line 29: Line 34:
  
 
==<font color="blue">Requirements</font>==
 
==<font color="blue">Requirements</font>==
* Kubuntu 16.04 x64 (as of Dec 2018) for Poky 2.4 Rocko
+
* Kubuntu 20.04 x64
* Kubuntu 18.04 x64 (as of Dec 2018)
+
* <s>Kubuntu 18.04 x64 (as of Dec 2018) - Poky: 2.7.1 Warrior (not tested but might build w/o problems)</s>
* For Poky 2.6 Thud see [http://www.yoctoproject.org/docs/2.6/mega-manual/mega-manual.html Yocto Project Poky 2.6 mega-manual]
+
* <s>Kubuntu 16.04 x64 (as of Dec 2018) - Poky: 2.4 Rocko, 2.7.1 Warrior</s>
  
 
==<font color="blue">Output files</font>==
 
==<font color="blue">Output files</font>==
Line 38: Line 43:
 
|-
 
|-
 
! File(s)
 
! File(s)
 +
! Build Command
 
! Description
 
! Description
 
|-
 
|-
 
| <font color='darkblue'>'''boot.bin'''</font>
 
| <font color='darkblue'>'''boot.bin'''</font>
 +
| ''bitbake u-boot''
 
| u-boot as the first stage bootloader = Secondary Program Loader (SPL) that boots '''u-boot-dtb.img'''
 
| u-boot as the first stage bootloader = Secondary Program Loader (SPL) that boots '''u-boot-dtb.img'''
 
|-
 
|-
 
| <font color='darkblue'>'''u-boot-dtb.img'''</font>
 
| <font color='darkblue'>'''u-boot-dtb.img'''</font>
 +
| ''bitbake u-boot''
 
| full size u-boot with a stripped device tree (''cat u-boot.img some_stripped_devicetree.dtb > u-boot-dtb.img'')
 
| full size u-boot with a stripped device tree (''cat u-boot.img some_stripped_devicetree.dtb > u-boot-dtb.img'')
 
|-
 
|-
 
|valign='top'| <font color='darkblue'>'''devicetree.dtb'''</font>
 
|valign='top'| <font color='darkblue'>'''devicetree.dtb'''</font>
 +
| bitbake device-tree
 
| device tree with listed interfaces, zynq registers, interrupts and drivers
 
| device tree with listed interfaces, zynq registers, interrupts and drivers
 
* ''elphel393/bootable-images/mmc/devicetree.dtb'' - mount rootfs from mmc partition
 
* ''elphel393/bootable-images/mmc/devicetree.dtb'' - mount rootfs from mmc partition
Line 52: Line 61:
 
|-
 
|-
 
| <font color='darkblue'>'''uImage'''</font>
 
| <font color='darkblue'>'''uImage'''</font>
 +
| ''bitbake linux-xlnx''
 
| kernel, drivers
 
| kernel, drivers
 
|-
 
|-
 
| <font color='darkblue'>'''rootfs.ubifs''', '''rootfs.ubi''', '''rootfs.tar.gz'''</font>
 
| <font color='darkblue'>'''rootfs.ubifs''', '''rootfs.ubi''', '''rootfs.tar.gz'''</font>
 +
| ''bitbake core-image-elphel393''
 
| rootfs in different formats - *.ubi* for NAND, *.tar.gz for mmc
 
| rootfs in different formats - *.ubi* for NAND, *.tar.gz for mmc
 
|}
 
|}
Line 78: Line 89:
  
 
==<font color="blue">Setup</font>==
 
==<font color="blue">Setup</font>==
 +
* Before building
 +
Installing some dependencies:
 +
sudo apt install git build-essential chrpath diffstat gawk texinfo zlib1g-dev python3-numpy libssl-dev
 +
Installing old python2.7 (bitbake snapshot that we used has problem with python3.8):
 +
sudo apt install python2.7
 +
sudo ln -s python2.7 python2
 +
sudo ln -s python2.7 python
  
* Poky 2.4 Rocko (Kubuntu 16.04)
+
* Poky 2.7.1 Warrior (Kubuntu 20.04)
 
<font size='2'>
 
<font size='2'>
  git clone -b '''rocko''' https://git.elphel.com/Elphel/elphel393.git
+
  git clone -b '''warrior''' https://git.elphel.com/Elphel/elphel393.git
 +
 
 +
If you are a developer and plan to commit changes you should use ssh access instead: git clone -b warrior git@git.elphel.com:Elphel/elphel393.git
 +
 +
 
 
  cd elphel393
 
  cd elphel393
 
  ./setup.py
 
  ./setup.py
Line 87: Line 109:
 
  . ./oe-init-build-env
 
  . ./oe-init-build-env
 
  bitbake u-boot device-tree linux-xlnx core-image-elphel393
 
  bitbake u-boot device-tree linux-xlnx core-image-elphel393
<!--''Temporary: linux-xlnx in Rocko depends on branch 'lwir' for x393. Change in projects.json line 42 from 'master' to 'lwir'.''-->
 
 
</font>
 
</font>
  
* Poky 2.6 Thud (Kubuntu 18.04)
+
* <s>Poky 2.4 Rocko (Kubuntu 16.04)
 
<font size='2'>
 
<font size='2'>
  git clone -b '''thud''' https://git.elphel.com/Elphel/elphel393.git
+
  git clone -b '''rocko''' https://git.elphel.com/Elphel/elphel393.git
 
  cd elphel393
 
  cd elphel393
 
  ./setup.py
 
  ./setup.py
Line 98: Line 119:
 
  . ./oe-init-build-env
 
  . ./oe-init-build-env
 
  bitbake u-boot device-tree linux-xlnx core-image-elphel393
 
  bitbake u-boot device-tree linux-xlnx core-image-elphel393
</font>
+
<!--''Temporary: linux-xlnx in Rocko depends on branch 'lwir' for x393. Change in projects.json line 42 from 'master' to 'lwir'.''-->
 +
</font></s>
  
==<font color="blue">Compare '''built''' vs '''deployed''' software versions</font>==
+
* Notes (required actions are already listed above): When trying to run bitbake on a new install got problems with older bitbake version (current build uses specific snapshot) and python3.8. So I install old python2.7 and linked it:
<font size='2'>
+
sudo apt install python2.7 python-numpy
  cd elphel393
+
  sudo ln -s python2.7 python2
  ./check_versions.py root@192.168.0.9
+
  sudo ln -s python2.7 python
</font>
 
  
'''Notes:'''
+
After this bitbake just complained about missing tools (git, build-essential were already installed):
* '''deployed''' = running on the target system
 
  
{|
+
sudo apt install chrpath diffstat gawk makeinfo
|[[File:Check versions.png|thumb|400px|check_versions.py output in terminal]]
 
|}
 
  
==<font color="blue">Build</font>==
+
Program test_mcntrl.py that builds x393.h header files from FPGA code that runs during ./setup.py requires numpy and results in error output if missing Still setup.py continues, you need to look through its output few lines after
 +
* x393
 +
git host: git.elphel.com
 +
Clone and checkout: x393
  
===<font color="blue">All targets</font>===
+
You may install numpy with
<font size='2'>
+
  sudo apt install python3-numpy
  bitbake u-boot device-tree linux-xlnx core-image-elphel393
 
</font>
 
===<font color="blue">Bootloader</font>===
 
<font size='2'>
 
bitbake u-boot
 
</font>
 
====Output====
 
* '''boot.bin'''
 
* '''u-boot-dtb.img'''
 
  
====Notes====
+
If you did not notice missing numpy, then during bitbake you will get error "build No rule to make target 'drivers/elphel/x393.o', needed by 'drivers/elphel/built-in.a'. Stop." in that case you need to install numpy, re-run setup.py (make sure numpy error is gone) then re-create linux kernel links during next build by erasing old ones:
* Current the recipe installs only binaries. We will upgrade u-boot from '''2016.05''' to the current release later.  
+
bitbake linux-xlnx -c clean
2016.05 will not compile in Kubuntu 18.04
+
and re-running
 +
bitbake linux-xlnx device-tree core-image-elphel393
  
===<font color="blue">Device tree</font>===
+
When building php: configure: error: zip support requires ZLIB. Use --with-zlib-dir=<DIR> to specify prefix where ZLIB include and library are located
<font size='2'>
+
  sudo apt install zlib1g-dev
  bitbake device-tree
 
</font>
 
====Output====
 
* '''devicetree.dtb'''
 
  
===<font color="blue">Kernel</font>===
+
==<font color="blue">Compare '''built''' vs '''deployed''' software versions</font>==
 
<font size='2'>
 
<font size='2'>
  bitbake linux-xlnx
+
  cd elphel393
 +
./check_versions.py root@192.168.0.9
 
</font>
 
</font>
====Output====
 
* '''uImage'''
 
  
====Notes====
+
{|
* linux-xlnx '''rocko''' branch was simply moved to '''thud''' branch
+
|[[File:Check versions.png|thumb|400px|check_versions.py output in terminal (web-393 revision on PC is ahead of the one installed on the camera)]]
* yocto thud: Kernel version is 4.9.0, linux-xlnx
+
|}
* Device Tree Blob is compiled separately in linux-xlnx
 
* Uncompiled device tree files are present in the linux sources provided by linux-xlnx
 
 
 
===<font color="blue">Rootfs</font>===
 
<font size='2'>
 
bitbake core-image-elphel393
 
</font>
 
====Output====
 
* '''rootfs.tar.gz'''
 
* '''rootfs.ubi''', '''rootfs.ubifs'''
 
  
 
==<font color="blue">Details for development</font>==
 
==<font color="blue">Details for development</font>==
 
[[Development_for_10393|'''Development for 10393''']]
 
[[Development_for_10393|'''Development for 10393''']]

Latest revision as of 12:22, 1 June 2022

Description

Build the firmware for Elphel 10393 series camera systems from scratch.

Prebuilt releases can be found here.

Use cases

  • Update Linux Kernel when developing a driver
  • Include application to the default firmware package
  • Update Elphel's PHP extension
  • C/C++ applications if developed on PC require a cross-compiler and require Yocto installation or some other alternative.

Other projects written in Python, PHP, Javascript, HTML, C/C++ (gcc is installed on the system board) can be developed on the camera. Installing the framework is not required but it can simplify the development process.

Description

  • Building embedded Linux image for Zynq ARMv7 platform - Elphel 10393 board
  • Yocto Poky revision = 2.7.1 (Warrior) - builds in Kubuntu 20.04. Older OSes are not supported. Roll back to get built in 16.04.
  • Yocto Poky revision = 2.4 (Rocko) - builds in Kubuntu 16.04. Won't build in 18.04 or 20.04.
  • Yocto Poky revision = 2.0 (Jethro)

Features

  • Once everything is built it supports updating software projects (files and binaries) on the target system
    • access is set up in yocto's local.conf (see setup.py output) + ssh-copy-id
    • bitbake some-app -c target_scp from the command line or Eclipse IDE - see examples in elphel-apps-... at Git

Requirements

  • Kubuntu 20.04 x64
  • Kubuntu 18.04 x64 (as of Dec 2018) - Poky: 2.7.1 Warrior (not tested but might build w/o problems)
  • Kubuntu 16.04 x64 (as of Dec 2018) - Poky: 2.4 Rocko, 2.7.1 Warrior

Output files

The names are listed as they appear in the u-boot configuration header file - actual output files have different names:

File(s) Build Command Description
boot.bin bitbake u-boot u-boot as the first stage bootloader = Secondary Program Loader (SPL) that boots u-boot-dtb.img
u-boot-dtb.img bitbake u-boot full size u-boot with a stripped device tree (cat u-boot.img some_stripped_devicetree.dtb > u-boot-dtb.img)
devicetree.dtb bitbake device-tree device tree with listed interfaces, zynq registers, interrupts and drivers
  • elphel393/bootable-images/mmc/devicetree.dtb - mount rootfs from mmc partition
  • elphel393/bootable-images/nand/devicetree.dtb - mount rootfs from NAND flash
uImage bitbake linux-xlnx kernel, drivers
rootfs.ubifs, rootfs.ubi, rootfs.tar.gz bitbake core-image-elphel393 rootfs in different formats - *.ubi* for NAND, *.tar.gz for mmc

The file are located at elphel393/bootable-images/, which is a link to poky's deploy directory elphel393/poky/build/tmp/deploy/images/elphel393/

  • complete set of files for rootfs in NAND Flash: elphel393/bootable-images/nand/
  • complete set of files for rootfs on MMC (micro SD card): elphel393/bootable-images/mmc/

Write files to media and boot

Boot from micro SD card

  • Use recovery or regular μSD card
  • EXT4 partition mounted as /

Detailed instructions

Boot from NAND flash

  • The default boot option - power on.
  • A UBIFS image is written to /dev/mtd4 - is mounted as /

Detailed instructions

Notes

Setup

  • Before building

Installing some dependencies:

sudo apt install git build-essential chrpath diffstat gawk texinfo zlib1g-dev python3-numpy libssl-dev

Installing old python2.7 (bitbake snapshot that we used has problem with python3.8):

sudo apt install python2.7
sudo ln -s python2.7 python2
sudo ln -s python2.7 python
  • Poky 2.7.1 Warrior (Kubuntu 20.04)

git clone -b warrior https://git.elphel.com/Elphel/elphel393.git

If you are a developer and plan to commit changes you should use ssh access instead: git clone -b warrior git@git.elphel.com:Elphel/elphel393.git


cd elphel393
./setup.py
cd poky
. ./oe-init-build-env
bitbake u-boot device-tree linux-xlnx core-image-elphel393

  • Poky 2.4 Rocko (Kubuntu 16.04)

git clone -b rocko https://git.elphel.com/Elphel/elphel393.git
cd elphel393
./setup.py
cd poky
. ./oe-init-build-env
bitbake u-boot device-tree linux-xlnx core-image-elphel393

  • Notes (required actions are already listed above): When trying to run bitbake on a new install got problems with older bitbake version (current build uses specific snapshot) and python3.8. So I install old python2.7 and linked it:
sudo apt install python2.7 python-numpy
sudo ln -s python2.7 python2
sudo ln -s python2.7 python

After this bitbake just complained about missing tools (git, build-essential were already installed):

sudo apt install chrpath diffstat gawk makeinfo

Program test_mcntrl.py that builds x393.h header files from FPGA code that runs during ./setup.py requires numpy and results in error output if missing Still setup.py continues, you need to look through its output few lines after

* x393
git host: git.elphel.com
Clone and checkout: x393

You may install numpy with

sudo apt install python3-numpy

If you did not notice missing numpy, then during bitbake you will get error "build No rule to make target 'drivers/elphel/x393.o', needed by 'drivers/elphel/built-in.a'. Stop." in that case you need to install numpy, re-run setup.py (make sure numpy error is gone) then re-create linux kernel links during next build by erasing old ones:

bitbake linux-xlnx -c clean

and re-running

bitbake linux-xlnx device-tree core-image-elphel393

When building php: configure: error: zip support requires ZLIB. Use --with-zlib-dir=<DIR> to specify prefix where ZLIB include and library are located

sudo apt install zlib1g-dev

Compare built vs deployed software versions

cd elphel393
./check_versions.py root@192.168.0.9

check_versions.py output in terminal (web-393 revision on PC is ahead of the one installed on the camera)

Details for development

Development for 10393