BeagleBoard/Poky

From eLinux.org
< BeagleBoard
Revision as of 23:35, 27 March 2009 by Mrchapp (Talk | contribs) (add bridge and openmax recipes)

Jump to: navigation, search

Quick Start

# Get Poky
svn co -r5728 http://svn.o-hand.com/repos/poky/trunk poky
cd poky; export POKY=`pwd`

# Get TI's overlay
git clone git://github.com/mturquette/meta-texasinstruments.git
git checkout ddiaz/gitomapzoom

# Copy configuration
cp -p $POKY/meta-texasinstruments/conf/misc/local.conf local.conf

# Build!
cd $POKY
source poky-init-build-env
bitbake omap-image-min-gst

Step by step

Download Poky

Get Poky.

svn co -r5728 http://svn.o-hand.com/repos/poky/trunk poky
cd poky
export POKY=`pwd`

Why SVN if Poky already moved to GIT, you may ask. Well, we feel fond of that revision because we know it to work. Feel free try Poky's GIT or a newer SVN revision. In fact, you might want to take a look at Poky OMAP too.

Add Texas Instruments' overlay

cd $POKY
git clone git://github.com/mturquette/meta-texasinstruments.git
git checkout ddiaz/gitomapzoom

Configure

cd $POKY/build
cp -p $POKY/meta-texasinstruments/conf/misc/local.conf local.conf

Review the above file.

Fine tune

With newer kernels exmap complains about missing headers. For now, you can have the rest of the profiling tools by taking exmap-console and exmap-server out of "RDEPENDS_task-poky-tools-profile" in $POKY/meta/packages/tasks/task-poky-tools.bb. This is needed for a Sato image.

Build

cd $POKY
source poky-init-build-env
bitbake omap-image-min-gst

Alternatively, you can build a complete Poky Sato image:

bitbake omap-image-sato

Deploy

You can find your binaries here: $POKY/build/tmp/deploy/images/.

cd $POKY/build/tmp/deploy/images/
ls -1s
[ADD DIR LISTING HERE]

The kernel and u-boot can be copied to the boot partition on your MMC/SD card. Take the image tarball and untar it in the root partition of your MMC/SD card; also, untar the modules tarball on the root of your file system.

Recipes

What are the most important recipes around here? Here's a list of them.

U-boot

A recipe for u-boot can be found here: $POKY/meta/packages/uboot/u-boot-omap3_git.bb. This comes from Poky. You can try with another recipe for u-boot as long as it works on the Beagle. See $POKY/meta-texasinstruments/conf/machine/beagleboard.conf if you want to change it.

Kernel

Kernel recipe is $POKY/meta-texasinstruments/packages/linux/linux-beagle_git.bb. This kernel, kindly forked by Felipec, is currently based on 2.6.28-omap1, with dspbridge patches on them. This is the GIT repository for it, see under the tidspbridge-stable branch: http://github.com/felipec/linux-omap/tree/tidspbridge-stable/.

Bridge library

The API for accessing the Bridge driver is provided by this recipe: $POKY/meta-texasinstruments/packages/tidspbridge/tidspbridge-lib_git.bb. The code is taken from this GIT repository: http://git.omapzoom.org/?p=platform/hardware/ti/omap3.git. Of course, it requires the DSP Bridge driver, which is provided by the kernel.

TI's OpenMAX IL

The recipe for building TI's OpenMAX IL is located here: $POKY//meta-texasinstruments/packages/tiopenmax/tiopenmax_0.3.5.bb. This code is rather old. The goal is to use this GIT repository for OpenMAX: http://git.omapzoom.org/?p=platform/hardware/ti/omx.git, but that'll be later.

  • GStreamer plug-ins