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This is a page about TI's BeagleBoard.

Available:

BeagleBoard Cx at Digi-Key
BeagleBoard xM at Digi-Key

Basic Requirements

Bootloader

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

U-Boot Download:

Download U-Boot Tarball:

wget ftp://ftp.denx.de/pub/u-boot/u-boot-2011.12.tar.bz2
tar xjf u-boot-2011.12.tar.bz2
cd u-boot-2011.12/

Or via git:

git clone git://git.denx.de/u-boot.git
cd u-boot/
git checkout v2011.12 -b tmp

U-Boot Patches

wget https://raw.github.com/RobertCNelson/Bootloader-Builder/master/patches/0001-Revert-armv7-disable-L2-cache-in-cleanup_before_linu.patch
wget https://raw.github.com/RobertCNelson/Bootloader-Builder/master/patches/0001-beagleboard-add-support-for-scanning-loop-through-ex.patch
wget https://raw.github.com/RobertCNelson/Bootloader-Builder/master/patches/0002-omap-beagle-re-add-c4-support.patch
wget https://raw.github.com/RobertCNelson/Bootloader-Builder/master/patches/0001-omap_hsmmc-Wait-for-CMDI-to-be-clear.patch

patch -p1 < 0001-Revert-armv7-disable-L2-cache-in-cleanup_before_linu.patch
patch -p1 < 0001-beagleboard-add-support-for-scanning-loop-through-ex.patch
patch -p1 < 0002-omap-beagle-re-add-c4-support.patch
patch -p1 < 0001-omap_hsmmc-Wait-for-CMDI-to-be-clear.patch

U-Boot Configure and Build:

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- omap3_beagle_config
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi-

Linux Kernel

Linux Build Script:

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

Run Build Script:

./build_kernel.sh

The kernel zImage and modules will be under the deploy directory.

Root File System

Default User: debian
Password: temppwd

Root User: root
Root Password: root

wget -c http://rcn-ee.net/deb/rootfs/squeeze/debian-6.0.4-minimal-armel-2012-02-27.tar.xz

verify the image with:

md5sum debian-6.0.4-minimal-armel-2012-02-27.tar.xz
46c6361a82d9b5121fa2ce64c7d65700  debian-6.0.4-minimal-armel-2012-02-27.tar.xz

Extract Image:

tar xJf debian-6.0.4-minimal-armel-2012-02-27.tar.xz

Setup microSD card

For these instruction, we are assuming: DISK=/dev/mmcblk0, "sudo fdisk -l" is useful for determining the device id..

export DISK=/dev/mmcblk0

Erase microSD card:

sudo parted --script ${DISK} mklabel msdos

Setup Boot Partition:

sudo fdisk ${DISK} << __EOF__
n
p
1

+64M
t
e
p
w
__EOF__

Set Boot Flag

sudo parted --script ${DISK} set 1 boot on

Format as fat

DISK=/dev/mmcblk0
sudo mkfs.vfat -F 16 ${DISK}p1 -n boot
(or)
DISK=/dev/sdb
sudo mkfs.vfat -F 16 ${DISK}1 -n boot

Create Partition Layout:
rootfs: ext3/4, rest of microSD card.

Mount the boot/rootfs partitions

Copy Boot Files:

Copy MLO to the boot partition

sudo cp -v ./u-boot-2011.12/MLO /media/boot/MLO

Copy u-boot.bin to the boot partition

sudo cp -v ./u-boot-2011.12/u-boot.img /media/boot/u-boot.img

Copy U-Boot BootScript:

create a new file: uEnv.txt

bootfile=uImage
address_uimage=0x80300000

console=ttyO2,115200n8

defaultdisplay=dvi
dvimode=1280x720MR-16@60

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

optargs=console=tty0

mmc_load_uimage=fatload mmc 0:1 ${address_uimage} ${bootfile}

#dvi->defaultdisplay
mmcargs=setenv bootargs console=${console} ${optargs} mpurate=${mpurate} buddy=${buddy} buddy2=${buddy2} vram=${vram} omapfb.mode=${defaultdisplay}:${dvimode} omapdss.def_disp=${defaultdisplay} root=${mmcroot} rootfstype=${mmcrootfstype}

loaduimage=run mmc_load_uimage; echo Booting from mmc ...; run mmcargs; bootm ${address_uimage}

Run mkimage on the Kernel zImage to create a U-Boot uImage file:

mkimage -A arm -O linux -T kernel -C none -a 0x80008000 -e 0x80008000 -n "3.2.7-x5" -d ./stable-kernel/deploy/3.2.7-x5.zImage ./uImage

Copy boot.scr & uEnv.txt to the boot partition

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

Copy Kernel uImage:

sudo cp -v ./uImage /media/boot/uImage

Copy Root File System:

sudo tar xfvp ./debian-*-minimal-armel-*/armel-rootfs-*.tar -C /media/rootfs/

Copy Kernel modules:

sudo tar xfv ./stable-kernel/deploy/3.2.7-x5-modules.tar.gz -C /media/rootfs/

Add Partition info to /etc/fstab:

sudo nano /media/rootfs/etc/fstab
add: /dev/mmcblk0p2 / ext4 errors=remount-ro 0 1

Add Serial Login:

sudo nano /media/rootfs/etc/inittab

edit last line:

from: S:2345:respawn:/sbin/getty 115200
to: S:2345:respawn:/sbin/getty 115200 ttyO2

Remove microSD card:

sync
sudo umount /media/boot
sudo umount /media/rootfs

First Boot:

Serial Boot log:
beagle_debian_3.0.x.txt

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