CM-T3730: Linux: Building images - Revision history

Lifshitz: /* Building Graphics SDK outside of OE */

2013-07-29T09:42:21Z

‎Building Graphics SDK outside of OE

Ilya: /* Building Angstrom Linux images */

2012-12-02T11:43:43Z

‎Building Angstrom Linux images

Ilya: /* See also */

2012-11-14T12:00:42Z

‎See also

Ilya: /* Applying Patches */

2012-08-16T07:14:41Z

‎Applying Patches

Show changes

Grinberg: /* Graphics SDK */

2012-06-13T13:59:18Z

‎Graphics SDK

New page

== Angstrom Linux images ==
The run-time Angstrom Linux image for CM-T3730 is created using [http://www.openembedded.org OpenEmbedded] framework. The OpenEmbedded framework can also be used for creation of custom Linux images for CM-T3730.

=== OpenEmbedded setup ===
Creation of custom Linux images for CM-T3730 requires installation of OpenEmbedded (OE) framework. [http://docs.openembedded.org/usermanual/usermanual.html#chapter_getting_oe Getting Started] section of [http://docs.openembedded.org/usermanual/usermanual.html OpenEmbedded User Manual] describes the framework installation process.

This article assumes that the [http://docs.openembedded.org/usermanual/usermanual.html#chapter_getting_oe Getting Started] instructions have been followed and the same directory structure and all the tools installed.
Also this article will use the $OEBASE variable to denote the base directory of the OpenEmbedded.

The OpenEmbedded framework must be configured in order to build images for CM-T3730.
Example configuration for Angstrom Linux image creation for CM-T3730 can be found in {{filename|oe/local.conf}} file in [http://compulab.co.il/wp-content/uploads/2012/06/cm-t3730_linux_2012-06-11.zip CM-T3730 Linux package].
The {{filename|oe/local.conf}} file must be copied to {{filename|${OEBASE}/build/conf}} directory:
<pre>
cp /path/to/cm-t3730-linux/oe/local.conf ${OEBASE}/build/conf
</pre>

CM-T3730 is currently not supported by upstream OpenEmbedded. The CM-T3730 Linux package provides patch series that introduce the machine support for OE framework.

=== Applying Patches ===
* Create a branch for CM-T3730 development. CM-T3730 patches are generated vs. commit b50fde72d5789b3185f9a7c64924280bb063cfad in org.openembedded.dev branch of the OpenEmbedded git tree. It is recommended to use exactly the same baseline to avoid merge conflicts.
<pre>
cd {$OEBASE}/oe/openembedded
git checkout -b cm-t3730-dev b50fde72d5789b3185f9a7c64924280bb063cfad
</pre>
* Apply CM-T3730 patches
<pre>
git am /path/to/cm-t3730-linux/oe/patches/*
</pre>

=== Building Angstrom Linux images ===
* Setup environment variables
<pre>
export OEBASE=/path/to/oe
cd $OEBASE
export PATH=$OEBASE/bitbake/bin:$PATH
export BBPATH=$OEBASE/build:$OEBASE/openembedded
export BB_ENV_EXTRAWHITE="OEBASE"
</pre>
* Build Angstrom Linux image
<pre>
bitbake beagleboard-demo-image
</pre>

Once bitbake has finished, the image is created and placed into the {{filename|${OEBASE}/build/arm/tmp/deploy/eglibc/images/cm-t3730}} directory.
Default configuration creates two types of images: {{filename|.tar.bz2}}, and {{filename|.ubi}}.
The {{filename|.tar.bz2}} archive should be extracted to the third partition of the CM-T3730 MMC/SD card.
Alternatively it can be extracted to a directory on the host workstation. This directory may be used as networked root filesystem for the device.

== Graphics SDK ==
The Graphics SDK version 4.05.00.03 includes the Linux graphics (SGX) drivers and OpenGLES1.1, 2.0 and OpenVG demos for all TI platforms.
The current CM-T3730 Linux package contains pre-built graphics kernel modules and graphics demo applications that were built using [http://www.openembedded.org OpenEmbedded] framework.
If a custom Linux kernel must be created, the graphics kernel modules must be re-built in order to avoid versioning issues.
The SGX modules can be built with or outside of OpenEmbedded framework depending on how the custom Linux kernel is built.

=== Building Graphics kernel modules using OE ===
* Clean the previously built modules
<pre>
bitbake omap3-sgx-modules -c clean
</pre>
* Build the modules again
<pre>
bitbake omap3-sgx-modules
</pre>
* Re-build the Angstrom image as described [[CM-T3730: Linux: Building images#Building Angstrom Linux images|here]] or manually place the {{filename|${OEBASE}/build/arm/tmp/deploy/eglibc/ipk/cm-t3730/omap3-sgx-modules_1.6.16.4117-r1i.9_cm-t3730.ipk}} package into your target root filesystem and then install it:
<pre>
opkg install /path/to/omap3-sgx-modules_1.6.16.4117-r1i.9_cm-t3730.ipk
</pre>

=== Building Graphics kernel modules outside of OE ===
* Download the [http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/gfxsdk/4_05_00_03/index_FDS.html Graphics SDK 4.05.00.03]. The download does not require any registration.
* Install the SDK on a Linux host machine. Please refer to the following [http://processors.wiki.ti.com/index.php/Graphics_SDK_Quick_installation_and_user_guide#Install_steps installation guide] for more details.
* Apply patches in order to fix the Graphics SDK v4.05.00.03 compile time errors:
<pre>
cd /path/to/Graphics/SDK/4/05/00/03/
patch Makifile.KM /path/to/cm-t3730-linux/extra/Graphics_SDK_4_05_00_03/patches/0001-KM-remove-devmem2-from-build-targets.patch
patch Makifile.SDK /path/to/cm-t3730-linux/extra/Graphics_SDK_4_05_00_03/patches/0002-SDK-export-TOOLCHAIN-variable-when-build-OGLESDEMOS.patch
</pre>
* Setup environment variables and build the graphics kernel modules. Please refer to the following [http://processors.wiki.ti.com/index.php/Graphics_SDK_Quick_installation_and_user_guide#Build_steps build guide] for more details.
<pre>
make OMAPES=5.x all_km
</pre>
* Install the graphics kernel modules into your rootfs:
<pre>
sudo make OMAPES=5.x install_km
</pre>
* Boot up your CM-T3730 device and run the SDK configuration script on the device:
<pre>
root@cm-t3730:~# /etc/init.d/omap-demo
</pre>

== See also ==
* [[CM-T3730: Linux: Kernel|Linux Kernel for CM-T3730]]
* [[CM-T3730: Linux: Angstrom]]
* [[Linux Development for ARM modules]]
* [http://www.openembedded.org OpenEmbedded]

[[Category:Linux|Building images]]
[[Category:CM-T3730|Linux: Building images]]

@@ Line 141: / Line 141: @@
 * Apply CM-T3730 patches:
 <pre>
-patch -p1 < /path/to/cm-t3730-linux/extra/dvsdk_04_03_00_06/dvsdk_04_03_00_06-cm-t3730-3.patch
+patch -p1 < /path/to/cm-t3730-linux/extra/dvsdk_04_03_00_06/dvsdk_04_03_00_06-cm-t3730-6.patch
 </pre>
 * Build the DVSDK:
@@ Line 164: / Line 164: @@
 <pre>
 cd /path/to/Graphics/SDK/4/05/00/03/
-patch -p1 < /path/to/cm-t3730-linux/extra/Graphics_SDK_4_05_00_03/graphics_sdk_04_05_00_03-cm-t3730-3.patch
+patch -p1 < /path/to/cm-t3730-linux/extra/Graphics_SDK_4_05_00_03/graphics_sdk_04_05_00_03-cm-t3730-6.patch
 </pre>
 * Setup the environment variables by editing the {{filename|Rules.make}} file. Set the following environment variables to appropriate values:

@@ Line 39: / Line 39: @@
 * Build Angstrom Linux image:
 <pre>
-bitbake beagleboard-demo-image
+bitbake cm-t3730-demo-image
 </pre>

@@ Line 193: / Line 193: @@
 <pre>
 root@cm-t3730:~# /etc/init.d/omap-demo
 </pre>
@@ Line 200: / Line 245: @@
 * [[Linux Development for ARM modules]]
 * [http://www.openembedded.org OpenEmbedded]
 [[Category:Linux|Building images]]
 [[Category:CM-T3730|Linux: Building images]]