From 7f52afc19186d94e0ed7ac73efc2633abbf88fca Mon Sep 17 00:00:00 2001 From: Rahul Saxena Date: Mon, 19 Mar 2012 17:35:15 -0700 Subject: meta-cedartrail: update README with instructions for PVR Graphics driver build 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 Signed-off-by: Tom Zanussi --- meta-cedartrail/README | 50 ++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 48 insertions(+), 2 deletions(-) diff --git a/meta-cedartrail/README b/meta-cedartrail/README index 67cba6bc..f17410c2 100755 --- a/meta-cedartrail/README +++ b/meta-cedartrail/README @@ -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" -- cgit v1.2.3-54-g00ecf