Difference between revisions of "Poky manual"

Revision as of 11:44, 9 September 2019

Description

How to 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)
Yocto Poky revision = 2.4 (Rocko)
~~Yocto Poky revision = 2.0 (Jethro)~~

Features

Environment is set up with a single script
All Elphel projects are configured for Eclipse IDE:
- fpga projects (verilog)
- kernel
- applications projects
All steps for fpga projects are run from Eclipse IDE
- Read about setting up Eclipse based FPGA development
- VDT Plugin repository

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

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

Read more about boot options.

Setup

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

Poky 2.7.1 Warrior (Kubuntu 16.04 or 18.04)

git clone -b warrior 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

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

@@ Line 1: / Line 1: @@
+==<font color="blue">Description</font>==
+How to 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>==
-* 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
 * 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>==
 * Building embedded Linux image for Zynq ARMv7 platform - Elphel 10393 board
-* Yocto Poky revision = 2.6 (Thud)
+* Yocto Poky revision = 2.7.1 (Warrior)
 * Yocto Poky revision = 2.4 (Rocko)
 * <s>Yocto Poky revision = 2.0 (Jethro)</s>
@@ Line 29: / Line 34: @@
 ==<font color="blue">Requirements</font>==
-* Kubuntu 16.04 x64 (as of Dec 2018) for Poky 2.4 Rocko
+* Kubuntu 16.04 x64 (as of Dec 2018) - Poky: 2.4 Rocko, 2.7.1 Warrior
-* Kubuntu 18.04 x64 (as of Dec 2018)
+* Kubuntu 18.04 x64 (as of Dec 2018) - Poky: 2.7.1 Warrior (not tested but might build w/o problems)
-* 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]
 ==<font color="blue">Output files</font>==
@@ Line 38: / Line 42: @@
 |-
 ! File(s)
+! Build Command
 ! Description
 |-
 | <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'''
 |-
 | <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'')
 |-
 |valign='top'| <font color='darkblue'>'''devicetree.dtb'''</font>
+| bitbake device-tree
 | device tree with listed interfaces, zynq registers, interrupts and drivers
 * ''elphel393/bootable-images/mmc/devicetree.dtb'' - mount rootfs from mmc partition
@@ Line 52: / Line 60: @@
 |-
 | <font color='darkblue'>'''uImage'''</font>
+| ''bitbake linux-xlnx''
 | kernel, drivers
 |-
 | <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
 |}
@@ Line 90: / Line 100: @@
 </font>
-* Poky 2.6 Thud (Kubuntu 18.04)
+* Poky 2.7.1 Warrior (Kubuntu 16.04 or 18.04)
 <font size='2'>
-  git clone -b '''thud''' https://git.elphel.com/Elphel/elphel393.git
+  git clone -b '''warrior''' https://git.elphel.com/Elphel/elphel393.git
   cd elphel393
   ./setup.py
@@ Line 105: / Line 115: @@
   ./check_versions.py root@192.168.0.9
 </font>
-'''Notes:'''
-* '''deployed''' = running on the target system
 {|
-|[[File:Check versions.png|thumb|400px|check_versions.py output in terminal]]
+|[[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)]]
 |}
-==<font color="blue">Build</font>==
-===<font color="blue">All targets</font>===
-<font size='2'>
- 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====
-* Current the recipe installs only binaries. We will upgrade u-boot from '''2016.05''' to the current release later.
-.05 will not compile in Kubuntu 18.04
-===<font color="blue">Device tree</font>===
-<font size='2'>
- bitbake device-tree
-</font>
-====Output====
-* '''devicetree.dtb'''
-===<font color="blue">Kernel</font>===
-<font size='2'>
- bitbake linux-xlnx
-</font>
-====Output====
-* '''uImage'''
-====Notes====
-* linux-xlnx '''rocko''' branch was simply moved to '''thud''' branch
-* 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>==
 [[Development_for_10393|'''Development for 10393''']]

Difference between revisions of "Poky manual"

Revision as of 11:44, 9 September 2019

Contents

Description

Use cases

Description

Features

Requirements

Output files

Write files to media and boot

Boot from micro SD card

Boot from NAND flash

Notes

Setup

Compare built vs deployed software versions

Details for development

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