My scribe notes…
http://omappedia.com/index.php?title=L25.INC2.5_Release_Notes&redirect=no
1. Get the ARM Cross compiler and install
wget -c http://www.codesourcery.com/sgpp/lite/arm/portal/package3696/public/arm-none-linux-gnueabi/arm-2008q3-72-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
OR
wget -c http://www.codesourcery.com/sgpp/lite/arm/portal/package6488/public/arm-none-linux-gnueabi/arm-2010q1-202-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
mkdir -p ${HOME}/opt
tar -C ${HOME}/opt -jxf arm-2009q1-203-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
2. Add Compiler directory to PATH, and cross compiler prefix before build
export PATH=/<toolchain_folder>/bin:$PATH
export CROSS_COMPILE=arm-none-linux-gnueabi-
3. Additional packages required for building
sudo apt-get install git-core flex bison gperf libesd0-dev zip
sudo apt-get install libwxgtk2.6-dev zlib1g-dev build-essential libstdc++5 (or libstdc++6)
sudo apt-get install tofrodos x-dev libx11-dev libncurses5-dev
sudo apt-get install sun-java5-jdk
4. Install sun-java5-jdk package
#add the old Jaunty repos to /etc/apt/sources.list
deb http://us.archive.ubuntu.com/ubuntu/ jaunty multiverse
deb http://us.archive.ubuntu.com/ubuntu/ jaunty-updates multiverse
#then run below commands
sudo apt-get update
sudo apt-get install sun-java5-jdk # if this cmd fails , then install it from System->Administrator->Synaptic Package manager
5. For ubuntu 10.04 , install below packages
apt-get install git-core uboot-mkimage openjdk-6-jdk bison flex g++-4.4 zlib1g-dev libncurses5-dev libreadline5-dev gperf
sudo update-alternatives –config java
sudo update-alternatives –config javac
6. Install repo if required
$ cd ~/bin
$ curl http://android.git.kernel.org/repo > ~/bin/repo
$ chmod a+x ~/bin/repo
7. Get the source code,
mkdir -p <your directory path>/mydroid
cd <your directory path>/mydroid
export MYDROID=`pwd`
repo init -u <Repo> -b <commit>
repo sync
That is,
mkdir RLS25.INC2.5RC2
cd RLS25.INC2.5RC2
repo init -u git://git.omapzoom.org/platform/omapmanifest.git -b froyo
cd .repo/manifests
git reset –hard RLS25.INC2.5rc2
cd ../..
repo sync
OR
mkdir -p <your directory path>/mydroid
cd <your directory path>/mydroid
export MYDROID=`pwd`
git checkout <Repo> -b <local-branch-name-here> <Branch>
git checkout <Commit>
That is,
git clone git://git.omapzoom.org/kernel/omap.git
cd omap/
git checkout –track -b p-android-omap-2.6.29 origin/p-android-omap-2.6.29
git checkout 6bec52ae43198677467744befd6598ab19f5c041
8. Building U-Boot
$ cd $MYDROID/bootable/bootloader/u-boot
$ make distclean
$ make CROSS_COMPILE=arm-none-linux-gnueabi- omap3430zoom2_config
$ make CROSS_COMPILE=arm-none-linux-gnueabi-
$ cp $MYDROID/bootable/bootloader/u-boot/tools/mkimage ~/bin/
9. BuildING x-loader
$ cd $MYDROID/bootable/bootloader/x-loader
$ make distclean
$ make CROSS_COMPILE=arm-none-linux-gnueabi- omap3430zoom2_config
$ make CROSS_COMPILE=arm-none-linux-gnueabi- ift
10. Get source for kernel and modules
$ cd <your work directory>; export YOUR_PATH=`pwd`
$ mkdir kernel
$ git clone git://git.omapzoom.org/kernel/omap.git kernel/android-2.6.32
$ cd kernel/android-2.6.32
$ git checkout c012c72d887f720609d341a03661da10c87d6445
OR update code if you already have code
$ cd $YOUR_PATH/kernel/android-2.6.32
$ git fetch origin
$ git checkout c012c72d887f720609d341a03661da10c87d6445
11. Building Linux kernel
Before the kernel compilation, you will need to download the RLS25.INC2.5rc2 patches for zoom2.
cd <path_to_kernel>
git apply 0001-Page-flipping-frame-buffer-issue-FIXED.patch
git apply 0001-Including-FM-during-kernel-modules-compilation-for-3.patch
$ cd $MYDROID/omap
$ make CROSS_COMPILE=<path to compiler>/arm-none-linux-gnueabi- distclean
$ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- zoom2_defconfig
$ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- uImage
$ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- modules
12. Building Android Filesystem
$cd $MYDROID
$cp -Rfp vendor/ti/zoom2/buildspec.mk.default buildspec.mk
$ make -j2
13. Prepare file system
$ cd ~/
$ mkdir myfs
$ cd myfs
$ cp -Rfp $MYDROID/out/target/product/zoom2/root/* .
$ cp -Rfp $MYDROID/omap/drivers/usb/gadget/*.ko .
$ cp -prf $MYDROID/omap/drivers/misc/ti-st/*.ko .
$ cp -Rfp $MYDROID/out/target/product/zoom2/system/ .
$ cp -Rfp $MYDROID/out/target/product/zoom2/data/ .
$ mv init.rc init.rc.bak
$ cp -Rfp init.omapzoom2.rc init.rc
13. You can install Cutecom package for USB based hyper terminal kind of tool. You can install it using Synaptic Package manager
14. Flashing to SD
Create two partitions in SD card one as boot(FAT32) and other filesystem(ext2 or ext3). [you can use package gparted]
$ sudo cp -rf <location_of_uboot.bin>/tmp/boot
$ sudo cp -rf <location_of_MLO>/tmp/boot
$ sudo cp -rf <location_of_uImage>/tmp/boot
$ sudo cp –Rfp ~/myfs/* /tmp/filesystem
$ sudo chmod –R 777 /tmp/filesystem/*
14. Change in bootargs for L25INC2.5rc2 source code
* Frame buffer size removed for 3630. For 3430 add mem=256M in bootargs
#nand unlock
#nand ecc hw
#setenv bootargs console=ttyS3,115200n8 root=/dev/mmcblk0p2 rw rootdelay=1 init=/init \
videoout=omap24xxvout omap_vout.video1_numbuffers=6 omap_vout.vid1_static_vrfb_alloc=y omapfb.vram=“0:4M”
#setenv bootcmd ‘mmcinit 0; fatload mmc 0 0x81c00000 uImage; bootm 0x81c00000′
#saveenv
#boot
