Compiling the iMote2 kernel

Downloads

• PlatformX 1.0 Release from sourceforge.net
• MSB2 Patches from msp/system/kernel available here
• iMote2 Toolchain (either the normal handheld.org toolchain or perferably the Mainstone version with an updated version of binutils
• the 2.6.14 linux kernel available from kernel.org

Steps

Extracting all the Images

Assuming you placed the platformX release, patches, and kernel in the same directory you could extract them all using the following commands: <bash>tar zxf linux-2.6.14.tar.gz tar zxf SG2Release-1_0.tgz tar zxf msb2_patches.tgz</bash>

Patch the kernel

First we apply the SG2 release patches then we apply our MSB2 patches: <bash>cd linux-2.6.14 echo "Applying SG2 Patches" patch -p1 < ../SG2Release-1_0/src/patch-2.6.14-sg2-10 echo "Applying MSB2 Patches" patch -p1 < ../msp-linux-2.6.14-pxa-mmc.patch patch -p1 < ../msp-linux-2.6.14-uart.patch patch -p1 < ../msp-linux-2.6.14-sd-detect.patch</bash>

Configure the kernel

At this point you can either use the normal SG2 configuration or apply the msb2 standard configuration. Be sure to add your toolchain to your path, if you've installed it in /usr/local/arm/3.4.3_binutils you could do something like this: <bash>export PATH=/usr/local/arm/3.4.3_binutils/bin/:$PATH export ARCH=arm export CROSS_COMPILE=arm-linux-</bash>

SG2 Configuration

<bash>export ARCH=arm export CROSS_COMPILE=arm-linux- make stargate2_defconfig make oldconfig</bash>

MSB2 Configuration

<bash>export ARCH=arm export CROSS_COMPILE=arm-linux- cp ../msp-linux-2.6.14-config ./.config make oldconfig</bash>

Compile the kernel

You can then build the kernel as you normally would or perform any additional steps you want to before building. Note that if you are using the Mainstone tools instead of a 3.4.1 toolchain installed in /usr/local/arm/3.4.1 you will need to edit Makefile.platx and comment out the export lines at the top. <bash>...

1. export ARCH=arm
2. export CROSS_COMPILE=/usr/local/arm/3.4.1/bin/arm-linux-
3. export PATH:=${PATH}:/usr/local/arm/3.4.1/bin/

... </bash>

<bash>mkdir ../kernel make zImage make modules make modules_install cp -a arch/arm/boot/zImage ../kernel/ cp -a modules/lib/modules/2.6.14_r1.0/ ../kernel/ </bash>