Mainline kernel support
Enabled in in debian linux package in 4.7.4-1.
Boots with linux 4.7.x/4.8.x and Debian stretch. SD card, NAND, LCD (xserver-xorg-video-fbdev works, fbconsole doesn't), keyboard (fn-key broken). Broken or missing support for USB, wifi, and "mouse" nubs.
The omap3_pandora target was enabled in the u-boot-omap package in version 2016.09~rc2+dfsg1-1. Only works with serial console, so debugging can be difficult without a serial console cable.
Installing Wheezy on the Open Pandora
What You will need
- An Open Pandora (I have the 1 Ghz Model)
- - Note: I have been told this can make a different for which port you can use. I have been able to use armhf, but I wouldn't mind someone trying it out....
- A PC with Debian installed
- An SD Card (I am using a 16 GB card, but I imagine that you can install it on an 8 GB Card)
- As of now, 3D acceleration does not work. I cannot get the omap drivers to work
- I have only been able to get the pandora kernel to play nicely with Debian.
I am NOT trying to get the PND system to work. You are welcome to attempt it, and there is some documention here: http://pandorawiki.org/Debian_On_SD.
- The Wifi Drivers are non-free software.
On The PC
- Format the SD card to have an ext3 partition (I used gparted to do this)
- Install debootstrap
# apt-get install debootstrap
- Now run debootstrap. I choose to use the armel port, even though Open Pandora has a hardware FPU. Others have successfully gotten the armel working, so I will do that then work on the armhf
#debootstrap --arch armel --foreign wheezy /tmp/pandora-debian http://ftp.us.debian.org/debian/
- Note: If you want to try the armhf port, run this instead:
#debootstrap --arch armhf --foreign wheezy /tmp/pandora-debian http://ftp.us.debian.org/debian/
- Now copy that directory you just made into the SD card, unmount it, and put it into your Pandora.
# cd /tmp/pandora-debian # cp -R -v * /media/chris/Debian/ # umount /media/chris/Debian/
On The Pandora
- Now on your Pandora, you will have to do the second stage. This will take a little bit of time:
# sudo chroot /media/Debian # /debootstrap/deboostrap --second-stage
- After that, you need to add your repositories into this new install.
# nano /etc/apt/sources.list
Contents of /etc/apt/sources.list
# wheezy deb http://ftp.us.debian.org/debian/ wheezy main contrib non-free deb-src http://ftp.us.debian.org/debian/ wheezy main contrib # wheezy updates deb http://ftp.us.debian.org/debian/ wheezy-updates main contrib non-free deb-src http://ftp.us.debian.org/debian/ wheezy-updates main contrib # Wheezy Backports deb http://ftp.us.debian.org/debian/ wheezy-backports main contrib non-free deb-src http://ftp.us.debian.org/debian/ wheezy-backports main contrib
- Now update and upgrade. I don't think you will get anything for the upgrade, but it doesn't hurt.
# apt-get update # apt-get dist-upgrade
Making the Pandora boot
- You must also create a boot.txt or autoboot.txt in order for u-boot to recognize and boot the kernel. If you make a boot.txt, you must manually load it from the bootmenu, but autoboot.txt will boot this before the NAND image:
# nano /boot.txt
# nano /autoboot.txt
Contents of boot.txt/autoboot.txt:
setenv bootargs root=/dev/mmcblk0p1 rw rootwait vram=6272K omapfb.vram=0:3000K mmc_core.removable=0 ext2load mmc 0:1 0x80300000 /boot/uImage bootm 0x80300000
NOTE: Refer to boot setup for how I did this. If you make multiple partitions on the card, the ezt2load will be different: http://pandorawiki.org/Boot_setup
Using the Pandora Kernel
$ sudo cp -R /lib/modules/* /media/Debian/lib/modules $ sudo cp -R /lib/firmware/* /media/Debian/lib/firmware $ sudo cp -R /boot/* /media/Debian/boot
Chroot with Debian:
# chown root:root -hR /boot/ # chown root:root -hR /lib/firmware/ # chown root:root -hR /lib/modules/
With that, you can now boot from the pandora directly to your new Debian installation!
Making a Debian Kernel
- NOTE: This is only possible with armhf. However, upon boot, you will only see a blank screen. I suspect a kernel recompile is needed for both armel and armhf.
- Install the kernel from apt-get (NOTE: The firmware-ti-connectivity is non-free):
# apt-get install linux-image-omap linux-headers-omap firmware-ti-connectivity
Now to make the pandora boot into it, we must make a bootable image for it to boot from.
# mkimage -A arm -O linux -T kernel -C none -a 0x80008000 -e 0x80008000 -n Linux -d /boot/vmlinuz-3.2.0-4-omap /boot/uImage
- As of now, it says it boots from the Uboot, but you will see nothing on the screen. To work on.....
When you install xxerver, be sure to install xserver-xorg-video-omap3 and xserver-xorg-video-fbdev. I chose to install xfce, but you are welcome to install what you wish.
# apt-get install xfce4 xserver-xorg-video-omap3 xserver-xorg-video-fbdev
I also install xfce4-goodies
# apt-get install xfce4-goodies
This is my xorg.conf
Section "Module" Load "extmod" Load "dbe" Disable "glx" Disable "dri" Load "dri2" EndSection Section "ServerLayout" Identifier "DefaultLayout" Screen "Screen0" EndSection Section "Screen" Identifier "Screen0" Device "OMAPFB" Monitor "Monitor0" DefaultDepth 16 SubSection "Display" Depth 16 Modes "800x480" EndSubSection EndSection Section "Monitor" Identifier "Monitor0" EndSection Section "Device" Identifier "OMAPFB" Driver "omapfb" Option "fb" "/dev/fb0" EndSection
Right now I have only attempted with root.
Note: I have only gotten fbdev to work. omap3 does not seem to want to work.
This is my xorg.conf
# Taken from Pandian Section "ServerLayout" Identifier "DefaultLayout" Screen "Screen0" EndSection Section "Screen" Identifier "Screen0" Device "FBDEV" Monitor "Monitor0" DefaultDepth 16 SubSection "Display" Depth 16 Modes "800x480" EndSubSection EndSection Section "Device" Identifier "OMAPFB" Driver "omapfb" Option "fb" "/dev/fb0" EndSection Section "Device" Identifier "FBDEV" Driver "fbdev" Option "ShadowFB" "false" Option "fbdev" "/dev/fb0" EndSection Section "Files" FontPath "/usr/share/fonts/X11/misc" FontPath "/usr/share/fonts/X11/Type1" FontPath "/usr/share/fonts/X11/Speedo" FontPath "/usr/share/fonts/X11/100dpi" FontPath "/usr/share/fonts/X11/75dpi" EndSection
sudo cp /etc/keymap-extension-2.6.map /media/mmcblk0p1/etc sudo cp /etc/skel/.pndXmodmap /media/mmcblk0p1/etc/skel
This script needs to run anytime you start X, right now I have it in /etc/skel/.xinitrc. Depending on if you use gdm, kdm, etc, it will have to go somewhere else
xmodmap /etc/skel/.pndXmodmap loadkeys /etc/keymap-extension-2.6.map
Nothing really to it....
# apt-get install apmd
Also install the DM's power manager. I use xfce, so I just installed that.
Unofficial Package Repository
There's an armhf repository with a linux-image package based on wheezy kernel sources with openpandora patches applied, as well as a pandora-hacks package which includes keymap and cpu frequency configurations specific to the pandora. To use, add to sources.list:
deb http://cascadia.debian.net/~vagrant/debian wheezy-pandora main