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Fedora 20 Cubox-i and Hummingboard Kernel

What works

  • All 4 Cores and other basics
  • Booting from MMC
  • Serial Output
  • HDMI Output
  • eSata
  • USB
  • Sound (probably S/PDIF only without better X11 driver than fbdev)
  • RTC
  • Infrared
  • Wireless
  • Bluetooth

What does not work

  • UHS for mmc0
  • fbdev is working for X11, but a better driver would improve performance

Using a preconfigured image

Download the image

wget https://googledrive.com/host/0B0vm64JM4bFZRUMzWGNXczFjd28 -O Fedora-Minimal-armhfp-cubox-i_hb-20-1-sda.raw.xz

Write the image to your media

xzcat Fedora-Minimal-armhfp-cubox-i_hb-20-1-sda.raw.xz > /dev/<location-of-your-fedora-20-arm-media>

Extend the root partition to fill your media if you wish

fdisk /dev/<location-of-your-fedora-20-arm-media> <<EOF
d
3
n
p

1251954

w
EOF
partprobe /dev/<location-of-your-fedora-20-arm-media>
e2fsck -f /dev/<location-of-your-fedora-20-arm-media>3
resize2fs /dev/<location-of-your-fedora-20-arm-media>3

Boot, login (root/fedora), and get up to date

yum -y update

Or you may modify the Fedora 20 Minimal image yourself

Download Fedora 20 Minimal, the u-boot images, and kernel

wget http://mirror.nexcess.net/fedora/releases/20/Images/armhfp/Fedora-Minimal-armhfp-20-1-sda.raw.xz
wget http://people.redhat.com/jmontleo/cubox-i_hb/u-boot-images/SPL
wget http://people.redhat.com/jmontleo/cubox-i_hb/u-boot-images/u-boot.img
wget http://people.redhat.com/jmontleo/cubox-i_hb/rpms/stable/armhfp/kernel-3.15.5-202.cuboxi_hb.fc20.armv7hl.rpm
wget http://people.redhat.com/jmontleo/cubox-i_hb/rpms/stable/armhfp/cubox-i_hb-uenv-1-1.fc20.noarch.rpm

Write everything to the media, and perform some additional setup

xzcat Fedora-Minimal-armhfp-20-1-sda.raw.xz > /dev/<location-of-your-fedora-20-arm-media>
dd if=SPL of=/dev/<location-of-your-fedora-20-arm-media> bs=512 seek=2
dd if=u-boot.img of=/dev/<location-of-your-fedora-20-arm-media> bs=1K seek=42
partprobe /dev/<location-of-your-fedora-20-arm-media>
mkdir /mnt/f20cuboxi4root
mount /dev/<location-of-your-fedora-20-arm-media>3 /mnt/f20cuboxi4root
mount /dev/<location-of-your-fedora-20-arm-media>1 /mnt/f20cuboxi4root/boot
rm -f /mnt/f20cuboxi4root/var/lib/rpm/__*
rm -f /mnt/f20cuboxi4root/boot/boot.*
unlink /mnt/f20cuboxi4root/etc/systemd/system/multi-user.target.wants/initial-setup-text.service
sed -i s@^root:\\*:@root:\\\$6\\\$VpqypThR\\\$QZF3tM8USR6bnIK.CQn3bnj0SU5VeStkKA56ZEtAoPCECe23RqPgWzafuoKGzdWzUz9z8ctjSEhHrVg63wzra0:@g /mnt/f20cuboxi4root/etc/shadow
rpm -i --noscripts --ignorearch --root /mnt/f20cuboxi4root ./kernel-3.15.5-202.cuboxi_hb.fc20.armv7hl.rpm ./cubox-i_hb-uenv-1-1.fc20.noarch.rpm
depmod -ab /mnt/f20cuboxi4root/ 3.15.5-202.cuboxi_hb.fc20.armv7hl
ln -sf dtb-3.15.5-202.cuboxi_hb.fc20.armv7hl/imx6dl-cubox-i.dtb /mnt/f20cuboxi4root/boot/imx6dl-cubox-i.dtb
ln -sf dtb-3.15.5-202.cuboxi_hb.fc20.armv7hl/imx6dl-hummingboard.dtb /mnt/f20cuboxi4root/boot/imx6dl-hummingboard.dtb
ln -sf dtb-3.15.5-202.cuboxi_hb.fc20.armv7hl/imx6q-cubox-i.dtb /mnt/f20cuboxi4root/boot/imx6q-cubox-i.dtb
ln -sf vmlinuz-3.15.5-202.cuboxi_hb.fc20.armv7hl /mnt/f20cuboxi4root/boot/zImage
wget http://people.redhat.com/jmontleo/cubox-i_hb/cubox-i_hb.repo -O /mnt/f20cuboxi4root/etc/yum.repos.d/cubox-i_hb.repo
umount /mnt/f20cuboxi4root/boot
umount /mnt/f20cuboxi4root
rmdir /mnt/f20cuboxi4root

fdisk /dev/<location-of-your-fedora-20-arm-media> <<EOF
d
3
n
p

1251954

w
EOF
e2fsck -f /dev/<location-of-your-fedora-20-arm-media>3
resize2fs /dev/<location-of-your-fedora-20-arm-media>3

Boot and login (root/fedora)

To get blueooth support set up:

yum -y install cubox-i_hb-brcm43xx-bluetooth 
systemctl enable brcm43xx
systemctl start brcm43xx

To get mainline kernels on top of stable, enable the mainline repo in /etc/yum.repos.d/cubox-i_hb.repo

I also recommend installing yum-plugin-priorities to ensure you only get kernels from these repos since the generic Fedora kernels will not boot. These repos have a slightly higher priority (98 vs. 99), so packages in them will be used before those from other repos regardless of verion-release-epoch.

yum -y install yum-plugin-priorities

Finally, the wireless driver prints ugly messages to the console every so often. You can suppress all of these except the first set at ~1 second after boot with the following command and a reboot.

echo "kernel.printk = 1 4 1 7" > /etc/sysctl.d/10-printk.conf

Get up to date

yum -y update

X.org Config

To get the fbdev driver working requires some configuration:

cat >> /etc/X11/xorg.conf.d/10-device.conf << EOF
Section "Device"
Identifier "Builtin Default fbdev Device 0"
Driver "fbdev"
EndSection
EOF
cat >> /etc/X11/xorg.conf.d/10-monitor.conf << EOF
Section "Monitor"
Identifier "Builtin Default Monitor"
EndSection
EOF
cat >> /etc/X11/xorg.conf.d/10-screen.conf << EOF
Section "Screen"
Identifier "Builtin Default fbdev Screen 0"
Device "Builtin Default fbdev Device 0"
Monitor "Builtin Default Monitor"
EndSection
EOF
cat >> /etc/X11/xorg.conf.d/10-server.conf << EOF
Section "ServerLayout"
Identifier "Builtin Default Layout"
Screen "Builtin Default fbdev Screen 0"
EndSection
EOF

If you want XFCE

yum groupinstall "Xfce Desktop"
cat >> /etc/sysconfig/desktop << EOF
PREFERRED=startxfce4
EOF

or LXDE

yum groupinstall "LXDE Desktop"
cat >> /etc/sysconfig/desktop << EOF
PREFERRED=lxsession
EOF

Building your own u-boot

git clone https://github.com/rabeeh/u-boot-imx6.git
cd u-boot-imx6
make mx6_cubox-i_config
make
sudo dd if=SPL of=/dev/<location-of-your-fedora-20-arm-media> bs=512 seek=2
sudo dd if=u-boot.img of=/dev/<location-of-your-fedora-20-arm-media> bs=1K seek=42

Building your own kernel

You can build using the SRPM:

yum -y install yum-utils rpm-build
yumdownloader --source kernel-3.15.5-202.cuboxi_hb.fc20
yum-builddep -y kernel-3.15.5-202.cuboxi_hb.fc20.src.rpm
rpm -ivh  kernel-3.15.5-202.cuboxi_hb.fc20.src.rpm
rpmbuild -bb ~/rpmbuild/SPECS/kernel.spec

Or you can clone the repo:

git clone https://github.com/jmontleon/fedora-20-cubox-i_hb.git
cd fedora-20-cubox-i_hb
make oldconfig #Or make menuconfig if you want to change stuff, and so on.
make zImage
make dtbs
sudo cp arch/arm/boot/zImage /boot
sudo cp arch/arm/boot/dts/*{cubox-i,hummingboard}*.dtb /boot
sudo cp System.map /boot
make modules
sudo make modules_install

Ensure you have a /boot/uEnv.txt if you haven't already:

bootfile=zImage
mmcargs=setenv bootargs root=/dev/mmcblk0p3 rootfstype=ext4 rootwait console=ttymxc0,115200n8 console=tty1 video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32