User:Rm

Latest revision as of 15:44, 25 September 2010

I have a GTA02v6 with debian installed on a microSD. I use the freerunner as gps and not as my primary phone.

[edit] Issues:

• I don't have wifi working with a siemens sx763 router, shr from autumn 2009 worked fine :|

[edit] Development environment:

• I use http://people.debian.org/~aurel32/qemu/armel/ upgraded to sid for testing / compiling stuff.
• I use distcc as described here: http://wiki.openmoko.org/wiki/Development_Environment#Building_debian_packages_with_qemu_and_cross-compiling_distccs

[edit] Checkout om 2.6.34 kernel

• git clone git://git.openmoko.org/git/kernel.git linux-2.6
• cd linux-2.6
• git checkout --track -b om-gta02-2.6.34 origin/om-gta02-2.6.34

[edit] Cross compile debian-fso linux-2.6-openmoko:

ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- dpkg-buildpackage -aarmel

[edit] How to pass parameters to kernel from u-boot:

First of all install uboot-envtools then:

• cp /usr/share/doc/uboot-envtools/examples/openmoko_gta02.config /etc/fw_env.config
• fw_printenv
• fw_printenv bootcmd
• bootcmd=output # modify the ouput accordingly
• fw_setenv bootcmd 'modified_output' # put the modified output under '' because it will confuse your shell

[edit] Data for bootchart2

Add initcall_debug printk.time=y quiet init=/sbin/bootchartd

[edit] Faster boot

Substitute rootdelay=5 with rootwait

[edit] Stuff you want to do on your freerunner:

• http://lists.openmoko.org/pipermail/community/2010-July/062495.html

[edit] Useful wiki pages:

• http://wiki.openmoko.org/wiki/Backing-up_flash_images#Backing-up_flash_images
• http://wiki.openmoko.org/wiki/Kernel

[edit] What i'm working on:

• DONE - silly patch makes webkitgtk js performance on par with chromium https://bugs.webkit.org/show_bug.cgi?id=42856
• DONE - got all the patches to get bootchart2 working on armel in 0.12.3, http://github.com/mmeeks/bootchart/issues#issue/8, debian kernel still needs to be recompiled because of http://bugs.debian.org/588200
• DONE - have a debian openmoko 2.6.29 kernel which can run all the useful tools out of the box. Update: bootchart2 works out of the box with latest git, patch for powertop can't be applied because it slows down the fr available here http://people.freedesktop.org/~rm/moko/add-config-for-powertop.diff
• NOTNEEDED, this is available since theora 1.2.0alpha1 - theorarm merge branch (plus dave milici patches) ported to latest theora. Have build issues with examples and decode stuff is buggy, nonetheless 30% faster on some simple benchmarks with video_dump: http://people.freedesktop.org/~rm/theorarm/theorarm-to-git-8ec0d25c0f21c82f.diff discussion on theora-dev: http://lists.xiph.org/pipermail/theora-dev/2010-August/004188.html

• Figure out what happend to this patch, this should be the premise of NO_HZ: http://marc.info/?l=linux-arm-kernel&m=122468318011905&w=2

• powertop on arm? http://processors.wiki.ti.com/index.php/Running_PowerTOP_on_OMAP35x_platform