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This is a page about TI's BeagleBoard and BeagleBoard xM.

 

 

ARM Cross Compiler: GCC

This is a pre-built (32bit) version of Linaro GCC that runs on generic linux, so 64bit users need to make sure they have installed the 32bit libraries for their distribution. (ubuntu: ia32-libs)

~/
wget -c https://launchpad.net/linaro-toolchain-binaries/trunk/2013.06/+download/gcc-linaro-arm-linux-gnueabihf-4.8-2013.06_linux.tar.xz
tar xJf gcc-linaro-arm-linux-gnueabihf-4.8-2013.06_linux.tar.xz
export CC=`pwd`/gcc-linaro-arm-linux-gnueabihf-4.8-2013.06_linux/bin/arm-linux-gnueabihf-

Bootloader: U-Boot

Das U-Boot -- the Universal Boot Loader http://www.denx.de/wiki/U-Boot

Download:

~/
git clone git://git.denx.de/u-boot.git
cd u-boot/
git checkout v2013.04 -b tmp

Patches:

~/u-boot
wget https://raw.github.com/eewiki/u-boot-patches/master/v2013.04/0001-omap3_beagle-uEnv.txt-bootz-n-fixes.patch

patch -p1 < 0001-omap3_beagle-uEnv.txt-bootz-n-fixes.patch

Configure and Build:

~/u-boot
make ARCH=arm CROSS_COMPILE=${CC} distclean
make ARCH=arm CROSS_COMPILE=${CC} omap3_beagle_config
make ARCH=arm CROSS_COMPILE=${CC}

Linux Kernel

This script will build the kernel and modules and copy them to the deploy directory.

Old Board File tree

Download:

~/
git clone git://github.com/RobertCNelson/stable-kernel.git
cd stable-kernel/

For v3.9.x:

~/stable-kernel
git checkout origin/v3.9.x -b tmp

Checkout v3.11.x branch:

~/stable-kernel
./build_kernel.sh

Device Tree

Download:

~/
git clone git://github.com/RobertCNelson/armv7-multiplatform.git
cd armv7-multiplatform

Checkout v3.11.x branch:

~/armv7-multiplatform
git checkout origin/v3.11.x -b tmp

Build:

~/armv7-multiplatform
./build_kernel.sh

Root File System

Debian 7.0 (Wheezy)

UserPassword
debiantemppwd
rootroot

Download:

~/
wget -c http://rcn-ee.net/deb/minfs/wheezy/debian-7.0.0-minimal-armhf-2013-05-05.tar.xz

Verify:

~/
md5sum debian-7.0.0-minimal-armhf-2013-05-05.tar.xz
7378ac1f20ca4857ac1994e22fd20277  debian-7.0.0-minimal-armhf-2013-05-05.tar.xz

Extract:

~/
tar xJf debian-7.0.0-minimal-armhf-2013-05-05.tar.xz

Ubuntu 13.04 (Raring)

UserPassword
ubuntutemppwd

Download:

~/
wget -c http://rcn-ee.net/deb/minfs/raring/ubuntu-13.04-minimal-armhf-2013-05-05.tar.xz

Verify:

~/
md5sum ubuntu-13.04-minimal-armhf-2013-05-05.tar.xz
952cf1f87c047653fb0f24818c8bfd26  ubuntu-13.04-minimal-armhf-2013-05-05.tar.xz

Extract:

~/
tar xJf ubuntu-13.04-minimal-armhf-2013-05-05.tar.xz

 

Setup microSD/SD card

For these instruction, we are assuming: DISK=/dev/mmcblk0, "lsblk" is very useful for determining the device id.

export DISK=/dev/mmcblk0

Erase microSD/SD card:

sudo dd if=/dev/zero of=${DISK} bs=1M count=16

Create Partition Layout:

sudo sfdisk --in-order --Linux --unit M ${DISK} <<-__EOF__
1,48,0xE,*
,,,-
__EOF__

Format Partitions:

for: DISK=/dev/mmcblk0
sudo mkfs.vfat -F 16 ${DISK}p1 -n boot
sudo mkfs.ext4 ${DISK}p2 -L rootfs

for: DISK=/dev/sdX
sudo mkfs.vfat -F 16 ${DISK}1 -n boot
sudo mkfs.ext4 ${DISK}2 -L rootfs

Mount Partitions:

On some systems, these partitions may be auto-mounted...

sudo mkdir -p /media/boot/
sudo mkdir -p /media/rootfs/
 
for: DISK=/dev/mmcblk0
sudo mount ${DISK}p1 /media/boot/
sudo mount ${DISK}p2 /media/rootfs/
 
for: DISK=/dev/sdX
sudo mount ${DISK}1 /media/boot/
sudo mount ${DISK}2 /media/rootfs/

Install Bootloader

Copy MLO/u-boot.img to the boot partition

~/
sudo cp -v ./u-boot/MLO /media/boot/
sudo cp -v ./u-boot/u-boot.img /media/boot/

uEnv.txt based bootscript

Create "uEnv.txt" boot script: (nano uEnv.txt)

~/uEnv.txt
#Camera: Uncomment to enable:
#http://shop.leopardimaging.com/product.sc?productId=17
#camera=li5m03

#SPI: enable for userspace spi access on expansion header
#buddy=spidev

#LSR COM6L Adapter Board
#http://eewiki.net/display/linuxonarm/LSR+COM6L+Adapter+Board
#First production run has unprogramed eeprom:
#buddy=lsr-com6l-adpt

#LSR COM6L Adapter Board + TiWi5
#wl12xx_clk=wl12xx_26mhz

#These are now set by default: uncomment/change if you need something else
#defaultdisplay=dvi
#dvimode=1280x720MR-16@60

#mmcroot=/dev/mmcblk0p2 ro
#mmcrootfstype=ext4 rootwait fixrtc

Copy uEnv.txt to the boot partition:

~/
sudo cp -v ./uEnv.txt /media/boot/

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=3.X.Y-Z]
-----------------------------

Copy and paste that "export kernel_version=3.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=3.X.Y-Z

Copy Root File System

~/
sudo tar xfvp ./*-*-minimal-arm*-*/arm*-rootfs-*.tar -C /media/rootfs/

Copy Kernel Files

Kernel Image:

~/
sudo cp -v ./stable-kernel/deploy/${kernel_version}.zImage /media/boot/zImage
(or if using the device tree v3.11.x branch)
sudo cp -v ./armv7-multiplatform/deploy/${kernel_version}.zImage /media/boot/zImage

Kernel Device Tree Binaries (v3.11.x branch):

~/
sudo mkdir -p /media/boot/dtbs/
sudo tar xfov ./armv7-multiplatform/deploy/${kernel_version}-dtbs.tar.gz -C /media/boot/dtbs/

Kernel Modules:

~/
sudo tar xfv ./stable-kernel/deploy/${kernel_version}-modules.tar.gz -C /media/rootfs/
(or if using the device tree v3.11.x branch)
sudo tar xfv ./armv7-multiplatform/deploy/${kernel_version}-modules.tar.gz -C /media/rootfs/

File Systems Table (/etc/fstab)

Edit: /etc/fstab

sudo nano /media/rootfs/etc/fstab
/etc/fstab
/dev/mmcblk0p2   /           auto   errors=remount-ro   0   1
/dev/mmcblk0p1   /boot/uboot auto   defaults            0   2

Networking

Edit: /etc/network/interfaces

sudo nano /media/rootfs/etc/network/interfaces

Add:

/etc/network/interfaces
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

 

Serial Login

Debian

Edit: /etc/inittab

sudo nano /media/rootfs/etc/inittab

Add this at the end of: /etc/inittab

/etc/inittab
T2:23:respawn:/sbin/getty -L ttyO2 115200 vt102

Ubuntu

Create new file: /etc/init/serial.conf

sudo nano /media/rootfs/etc/init/serial.conf

With this content:

/etc/init/serial.conf
start on stopped rc RUNLEVEL=[2345]
stop on runlevel [!2345]

respawn
exec /sbin/getty 115200 ttyO2

 Remove microSD/SD card:

sync
sudo umount /media/boot
sudo umount /media/rootfs
Unknown macro: {wiki}

FAQ

No Ethernet:

  1. Check Power (aka use 5Volt DC Plug): The USB bus allows up to 100mA on initial connection and up to a max of 500mA can be requested by the end USB device. On the xM this is not enough to power the whole device and on the xM C there is an actual hardware switch to disable the smsc95xx usb hub/ethernet when powered by OTG (to prevent out of power crashes seen on the xM A/B with when users powered by OTG).
  2. Check Ethernet Cable/Plug: Is the Ethernet Cable actually plugged into the Beagle and Router?
  3. Check Modules: The smsc95xx kernel driver is usually built as an external module, double check that your kernel modules for this device are installed.
    debian@devel:~$ find /lib/modules/`uname -r`/kernel/ | grep smsc95xx
    /lib/modules/3.2.26-x14/kernel/drivers/net/usb/smsc95xx.ko
    
    debian@devel:~$ lsmod | grep smsc95xx
    smsc95xx               11302  0
    
  4. Reload smsc95xx kernel module (Checked all the above and the LAN LED's are still off)
    sudo rmmod smsc95xx
    sudo modprobe smsc95xx
    sudo /etc/init.d/networking restart
    
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