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This is a page about Olimex's Freescale based i.MX233 Boards; iMX233-OLinuXino.
Availability
Boards:
IMX233-OLINUXINO-MICRO at Digi-Key
Accessories:
USB-SERIAL-CABLE-F at Digi-Key
Kit Notes
iMX233-OLinuXino-Micro:
From: PDF Manual
Important note about owners of revision B of the board: if you are one of the first owners of iMX233-OLinuXino-Micro and you experience random hang-ups (Kernel oops, Kernel panic) it is recommended to unsolder/remove R17 (check the schematic or the board file to locate it easier). Removing R17 fixes the random lock-up.
This problem has been fixed in revision B1 of the board.
Vendor Documentation
- Olimex Documentation: https://www.olimex.com
- Documentation: https://github.com/OLIMEX/OLINUXINO
- Forums: https://www.olimex.com/forum/index.php?board=1.0
Basic Requirements
- Running a recent supported release of Debian, Fedora or Ubuntu on a x86 64bit based PC; without OS Virtualization Software.
- Many of the listed commands assume /bin/bash as the default shell.
- ARM Cross Compiler – Linaro: https://www.linaro.org
- Linaro Toolchain Binaries: https://www.linaro.org/downloads/
- Bootloader
- Das U-Boot – the Universal Boot Loader: http://www.denx.de/wiki/U-Boot
- Source: https://github.com/u-boot/u-boot/
- Linux Kernel
- Linus's Mainline tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
- ARM based rootfs
- Debian: https://www.debian.org
ARM Cross Compiler: GCC
This is a pre-built (64bit) version of GCC that runs on generic linux, sorry (32bit) x86 users, it's time to upgrade...
Download/Extract:
user@localhost:~$
wget -c https://releases.linaro.org/components/toolchain/binaries/6.5-2018.12/arm-eabi/gcc-linaro-6.5.0-2018.12-x86_64_arm-eabi.tar.xz tar xf gcc-linaro-6.5.0-2018.12-x86_64_arm-eabi.tar.xz export CC=`pwd`/gcc-linaro-6.5.0-2018.12-x86_64_arm-eabi/bin/arm-eabi-
Test Cross Compiler:
user@localhost:~$
${CC}gcc --version
Test Output:
arm-eabi-gcc (Linaro GCC 6.5-2018.12) 6.5.0 Copyright (C) 2017 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Bootloader: U-Boot
Das U-Boot – the Universal Boot Loader: http://www.denx.de/wiki/U-Boot
eewiki.net patch archive: https://github.com/eewiki/u-boot-patches
Download:
user@localhost:~$
git clone https://github.com/u-boot/u-boot cd u-boot/ git checkout v2019.01 -b tmp
Patches:
user@localhost:~/u-boot$
wget -c https://github.com/eewiki/u-boot-patches/raw/master/v2019.01/0001-mx23_olinuxino-uEnv.txt-bootz-n-fixes.patch patch -p1 < 0001-mx23_olinuxino-uEnv.txt-bootz-n-fixes.patch
Configure and Build:
user@localhost:~/u-boot$
make ARCH=arm CROSS_COMPILE=${CC} distclean
make ARCH=arm CROSS_COMPILE=${CC} mx23_olinuxino_defconfig
make ARCH=arm CROSS_COMPILE=${CC} u-boot.sb
./tools/mxsboot sd u-boot.sb u-boot.sd
Linux Kernel
This script will build the kernel, modules, device tree binaries and copy them to the deploy directory.
Download:
user@localhost:~$
git clone https://github.com/RobertCNelson/armv5_devel cd armv5_devel/
For v4.9.x-imxv5 (Longterm 4.9.x):
user@localhost:~/armv5_devel$
git checkout origin/v4.9.x-imxv5 -b tmp
For v4.14.x-imxv5 (Longterm 4.14.x):
user@localhost:~/armv5_devel$
git checkout origin/v4.14.x-imxv5 -b tmp
For v4.19.x-imxv5 (Longterm 4.19.x):
user@localhost:~/armv5_devel$
git checkout origin/v4.19.x-imxv5 -b tmp
Build:
user@localhost:~/armv5_devel$
./build_kernel.sh
Root File System
Debian 10
User |
Password |
|---|---|
debian |
temppwd |
root |
root |
Download:
user@localhost:~$
wget -c https://rcn-ee.com/rootfs/eewiki/minfs/debian-10.3-minimal-armel-2020-02-10.tar.xz
Verify:
user@localhost:~$
sha256sum debian-10.3-minimal-armel-2020-02-10.tar.xz
sha256sum output:
45f966969f8944c4ae4af4c989bb97be85fb5581e39ff3c20176433e11487fef debian-10.3-minimal-armel-2020-02-10.tar.xz
Extract:
user@localhost:~$
tar xf debian-10.3-minimal-armel-2020-02-10.tar.xz
Setup microSD card
We need to access the External Drive to be utilized by the target device. Run lsblk to help figure out what linux device has been reserved for your External Drive.
Example: for DISK=/dev/sdX
lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 465.8G 0 disk ├─sda1 8:1 0 512M 0 part /boot/efi └─sda2 8:2 0 465.3G 0 part / <- Development Machine Root Partition sdb 8:16 1 962M 0 disk <- microSD/USB Storage Device └─sdb1 8:17 1 961M 0 part <- microSD/USB Storage Partition
Thus you would use:
export DISK=/dev/sdb
Example: for DISK=/dev/mmcblkX
lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 465.8G 0 disk ├─sda1 8:1 0 512M 0 part /boot/efi └─sda2 8:2 0 465.3G 0 part / <- Development Machine Root Partition mmcblk0 179:0 0 962M 0 disk <- microSD/USB Storage Device └─mmcblk0p1 179:1 0 961M 0 part <- microSD/USB Storage Partition
Thus you would use:
export DISK=/dev/mmcblk0
Erase partition table/labels on microSD card:
sudo dd if=/dev/zero of=${DISK} bs=1M count=20
Create Partition Layout:
With util-linux v2.26, sfdisk was rewritten and is now based on libfdisk.
Check the version of sfdisk installed on your pc
sudo sfdisk --version
Example Output
sfdisk from util-linux 2.27.1
sfdisk >= 2.26.x
sudo sfdisk ${DISK} <<-__EOF__
1M,16M,0x53,-
17M,,,-
__EOF__
sfdisk <= 2.25.x
sudo sfdisk --unit M ${DISK} <<-__EOF__
1,16,0x53,-
17,,,-
__EOF__
Install Bootloader:
user@localhost:~$
for: DISK=/dev/mmcblk0
sudo dd if=./u-boot/u-boot.sd of=${DISK}p1
for: DISK=/dev/sdX
sudo dd if=./u-boot/u-boot.sd of=${DISK}1
Format Partition:
for: DISK=/dev/mmcblkX
sudo mkfs.ext4 -L rootfs ${DISK}p2
for: DISK=/dev/sdX
sudo mkfs.ext4 -L rootfs ${DISK}2
Mount Partition:
On most systems these partitions may be auto-mounted...
sudo mkdir -p /media/rootfs/
for: DISK=/dev/mmcblkX
sudo mount ${DISK}p2 /media/rootfs/
for: DISK=/dev/sdX
sudo mount ${DISK}2 /media/rootfs/
Install Kernel and Root File System
To help new users, since the kernel version can change on a daily basis. The kernel building scripts listed on this page will now give you a hint of what kernel version was built.
----------------------------- Script Complete eewiki.net: [user@localhost:~$ export kernel_version=5.X.Y-Z] -----------------------------
Copy and paste that "export kernel_version=5.X.Y-Z" exactly as shown in your own build/desktop environment and hit enter to create an environment variable to be used later.
export kernel_version=5.X.Y-Z
Copy Root File System
user@localhost:~$
sudo tar xfvp ./debian-*-*-armel-*/armel-rootfs-*.tar -C /media/rootfs/ sync sudo chown root:root /media/rootfs/ sudo chmod 755 /media/rootfs/
Set uname_r in /boot/uEnv.txt
user@localhost:~$
sudo sh -c "echo 'uname_r=${kernel_version}' >> /media/rootfs/boot/uEnv.txt"
Copy Kernel Image
Kernel Image:
user@localhost:~$
sudo cp -v ./armv5_devel/deploy/${kernel_version}.zImage /media/rootfs/boot/vmlinuz-${kernel_version}
Copy Kernel Device Tree Binaries
user@localhost:~$
sudo mkdir -p /media/rootfs/boot/dtbs/${kernel_version}/
sudo tar xfv ./armv5_devel/deploy/${kernel_version}-dtbs.tar.gz -C /media/rootfs/boot/dtbs/${kernel_version}/
Copy Kernel Modules
user@localhost:~$
sudo tar xfv ./armv5_devel/deploy/${kernel_version}-modules.tar.gz -C /media/rootfs/
File Systems Table (/etc/fstab)
sudo sh -c "echo '/dev/mmcblk0p2 / auto errors=remount-ro 0 1' >> /media/rootfs/etc/fstab"
Remove microSD/SD card
sync sudo umount /media/rootfs
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