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meta-cedartrail: update README with instructions for PVR Graphics driver build

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Update README file with information on building image with PVR graphics driver.
Also provide info on  enabling build of recipes for glxgears demo apps,
video and music samples.

Signed-off-by: Rahul Saxena <rahul.saxena@.intel.com>
Signed-off-by: Tom Zanussi <tom.zanussi@intel.com>
This commit is contained in:
Rahul Saxena 2012-03-19 17:35:15 -07:00 committed by Tom Zanussi
parent 47d88017ba
commit 7f52afc191
1 changed files with 48 additions and 2 deletions
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meta-cedartrail/README
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@ -2,13 +2,17 @@ This README file contains information on building the meta-cedartrail
BSP layer, and booting the images contained in the /binary directory.
Please see the corresponding sections below for details.
The 'Cedar Trail' platform consists of the Cedarview (Intel® Atom™
N2600, N2800 and D2700) processor, plus the Tiger Point
(Intel® NM10 Express) Chipset.
Table of Contents
=================
I. Building the meta-cedartrail BSP layer
II. Booting the images in /binary
III. Miscellaneous Notes
I. Building the meta-cedartrail BSP layer
=========================================
@ -24,10 +28,28 @@ bblayers.conf e.g.:
yocto/meta-intel/meta-cedartrail \
To enable the cedartrail layer, add the cedartrail MACHINE to local.conf:
The meta-cedartrail layer contains support for two different machine
configurations. These configurations are identical except for the fact
that the one prefixed with 'cedartrail' makes use of Intel' proprietary
PowerVR Graphics/Media drivers to enable Graphics and Media acceleration
in the processor, while the one prefixed with 'cedartrail-nonopvr' uses
non-accelerated graphics driver (VESA).
If you want to enable the layer that supports Power VR graphics add the
following to the local.conf file:
MACHINE ?= "cedartrail"
Power VR Graphics user-space driver binaries are covered by a
"Intel Free Distribution Binary License". The build of this driver
can be enabled by adding the following line to the local.conf file:
PVR_LICENSE = "yes"
If you want to enable the layer that does not support Power VR graphics
add the following to the local.conf file:
MACHINE ?= "cedartrail-nopvr"
You should then be able to build a cedartrail image as such:
$ source oe-init-build-env
@ -81,3 +103,27 @@ the syslinux boot: prompt, or the boot: prompt contains strange
characters), try doing this first:
# dd if=/dev/zero of=/dev/sdf bs=1M count=512
Miscellaneous Notes
====================
Video and Music Samples
-----------------------
This BSP includes recipes to download Ogg format video and
music files that can be played-back with the Video and music players
included in the sato images. The sample files are installed in
/home/Music and /home/Videos directories.
Adding Glxgears to image
-------------------------
Glxgears can be added to the generated image by adding "debug-tweaks"
option to the extra image features variable in the default local.conf
before building the BSP.
e.g. to add Glxgears, locate the following line in local.conf
EXTRA_IMAGE_FEATURES = "debug-tweaks"
and change above line to..
EXTRA_IMAGE_FEATURES = "debug-tweaks tools-testapps"