$ sudo apt-get install gawk wget git-core diffstat \
unzip texinfo gcc-multilib build-essential chrpath \
socat cpio python python3 python3-pip python3-pexpect \
xz-utils debianutils iputils-ping python3-git \
python3-jinja2 libegl1-mesa libsdl1.2-dev pylint3 xterm
$ git clone https://github.com/advantechralph/yocto-local.git -b tpc71wn21pa-warrior
$ cd tpc71wn21pa-warrior
$ git checkout meta/tpc71wn21pa-warrior
$ git checkout project/tpc71wn21pa-warrior
$ make yocto
$ make imageqt5
Insert the SD card into the build code Ubuntu Host.
$ make writesdcard
Then, follow the prompt to write the image into sdcard.
$ make toolchain
For the toolchian self-installation script, please refer to the sdk in Path information as below.
$ make info
# fsl-image-qt5 : qt5 image
# ...
# sdk : sdk file
# ...
After use make info, you will get the sdk location. You can execute this script to install toolchain on another Ubuntu host environment.
$ apt-get install xz-utils build-essential python python3
$ ~/Download/fsl-imx-x11-glibc-x86_64-meta-toolchain-qt5-cortexa9hf-neon-toolchain-4.19-warrior.sh
Follow the prompt, we install toolchian in the default location /opt/fsl-imx-x11/4.19-warrior.
For using toolchian, use the command as below to setup compiling environment.
$ . /opt/fsl-imx-x11/4.19-warrior/environment-setup-cortexa9hf-neon-poky-linux-gnueabi
Check the $CC variable.
$ echo $CC
arm-poky-linux-gnueabi-gcc -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a9 --sysroot=/opt/fsl-imx-x11/4.19-warrior/sysroots/cortexa9hf-neon-poky-linux-gnueabi
Write a hello.c and test to compile it.
#include <stdio.h>
int main(int argc, char *argv[]){
printf("%s, %d: hello\n", __FUNCTION__, __LINE__);
return 0;
}
$ $CC -Wall -o hello hello.c
Then, upload hello to your tpc71wn21pa and execute it to test, ex: scp.
root@imx6qtpc71wn21pa:~# ./test
main, 3: hello
$ ls include/
bsp.mk builddir.mk build.mk clean.mk color.mk gitserver.mk image.mk info.mk prepare.mk repo.mk sdcard.mk toolchain.mk usage.mk yocto.mk
include/yocto.mkinclude/build.mkinclude/image.mkinclude/bsp.mkAfter done for “make yocto” or “make imageqt5”, follow the commands as below to setup yocto env.
$ cd build/yocto
$ source setup-environment build.imx6qtpc71wn21pa/
ERROR: do not use the BSP as root. Exiting...
Welcome to Freescale Community BSP
The Yocto Project has extensive documentation about OE including a
reference manual which can be found at:
http://yoctoproject.org/documentation
(...)
$ bitbake --help
...
$ devtool --help
...
From source package root directory.
$ cd build/yocto
$ source setup-environment build.imx6qtpc71wn21pa
Then, you will be in build.imx6qtpc71wn21pa.
If you want to edit kernel source,
use devtool and commands as below to put source code into workspace.
$ devtool modify linux-imx
After fetch code done, enter the kernel source workspace.
$ cd workspace/sources/linux-imx
Check git hash with commands as below.
git log --oneline --decorate
80bfc285af33 (HEAD -> devtool, tag: list, tag: devtool-patched) fix mcu reboot unstable
fde0496926dc enable pci controller
fe8cf7e978cf io reset
00c32ddd4862 mcu reboot
abdd4541e9df fine tune realtek phy
672ecff90190 clock for rgmii
aa3b53191219 update for mcu watchdog
2cafae0f6a57 config and dts for tpc71wn21pa
8507afc3a397 (tag: devtool-base, origin/imx_4.19.35_1.1.0, imx_4.19.35_1.1.0) MLK-23846 ARM64: dts: freescale: fsl-imx8mn-ddr4-evk: correct bd71847 device node
Modify the kernel source and re-build kernel image with bitbake linux-imx command.
Commit the source code by git commit command.
After you commit the code, the devtool branch will move forward.
git log --branches="*devtool*" --oneline --decorate
84e43b1bc090 (HEAD -> devtool) add dummy file
80bfc285af33 (tag: list, tag: devtool-patched) fix mcu reboot unstable
fde0496926dc enable pci controller
fe8cf7e978cf io reset
00c32ddd4862 mcu reboot
abdd4541e9df fine tune realtek phy
672ecff90190 clock for rgmii
aa3b53191219 update for mcu watchdog
2cafae0f6a57 config and dts for tpc71wn21pa
8507afc3a397 (tag: devtool-base, origin/imx_4.19.35_1.1.0, imx_4.19.35_1.1.0) MLK-23846 ARM64: dts: freescale: fsl-imx8mn-ddr4-evk: correct bd71847 device node
The devtool branch will be ahead of devbtool-patched.
Then, you can use devtool update-recipe command to create patches.
Before updating, it is recommended to create a working layer instead to create patches directly to the original meta/recipe.
Create a dummy meta layer.
$ bitbake-layers create-layer -p 15 meta-dummy
Create patches into this dummy meta.
$ devtool update-recipe -a meta-dummy linux-imx
Check the files structure of the dummy layer.
tree meta-dummy/
meta-dummy/
├── conf
│ └── layer.conf
├── COPYING.MIT
├── README
├── recipes-example
│ └── example
│ └── example_0.1.bb
└── recipes-kernel
└── linux
├── linux-imx
│ └── 0001-add-dummy-file.patch
└── linux-imx_4.19.35.bbappend
The patch 0001-add-dummy-file.patch is created, and you can add this patch into original location of kernel recipe.
$ mv 0001-add-dummy-file.patch ${yocto pacakge rootdir}/build/yocto/sources/meta-advantech/meta-bsp-patch/recipes-kernel/linux/linux-imx
Append patch file into SRC_URI this variable in the linux-imx_4.19.35.bbappend.
${yocto pacakge rootdir}/build/yocto/sources/meta-advantech/meta-bsp-patch/recipes-kernel/linux/linux-imx_4.19.35.bbappend:
ILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
SRC_URI += "file://0001-config-and-dts.patch \
file://0002-mcu-watchdog.patch \
file://0003-fec-clock.patch \
file://0004-rtl8211f.patch \
file://0005-mcu-reboot.patch \
file://0006-io-reset.patch \
file://0001-enable-pci-controller.patch \
file://0001-fix-mcu-reboot-unstable.patch \
file://0001-add-dummy-file.patch \
"
LOCALVERSION = ""
After update recipe and patches, do not forget to make package leave workspace.
$ devtool reset linux-imx
tpc71wn21pa yocto