Downloaded from:

• http://mobilesupport.lenovo.com/en-us/products/yoga_tablet_10?tabname=downloads
  -or-
  http://mobilesupport.lenovo.com/en-us/products/yoga_tablet_8?tabname=downloads
  1. Open Source Code (part 1) - Yoga Tablet 8 / 10
     http://download.lenovo.com/consumer/open_source_code/b6000-8000_source_part1.zip
     200MB
  • mediatek
    • build
    • config
    • custom
    • kernel - "intended for Mediatek solution kernel specific non-customization codes"
    • platform
  2. Open Source Code (part 2) - Yoga Tablet 8 / 10
     http://download.lenovo.com/consumer/open_source_code/b6000-8000_source_part2.zip
     121MB
  • kernel
  3. Open Source Code (part 3) - Yoga Tablet 8 / 10
     http://download.lenovo.com/consumer/open_source_code/b6000-8000_source_part3.zip
     103MB
  • bionic
  • bootable
  • external

• This code for the b6000/b8000 MT8125 CPU compiles against MT6589 code.
  https://github.com/TeamYogaBlade/lenovo_b6000-8000_kernel_source/tree/master/mediatek/platform/mt6589
  https://github.com/TeamYogaBlade/lenovo_b6000-8000_kernel_source/tree/master/mediatek/config/mt6589
  etc...
  I am guessing they are basically the same CPU?

1. Unzip ZIPs

unzip b6000-8000_source_part1.zip -d lenovo_b6000-8000_kernel_source
unzip b6000-8000_source_part2.zip -d lenovo_b6000-8000_kernel_source
unzip b6000-8000_source_part3.zip -d lenovo_b6000-8000_kernel_source

1. Fix paths per 4ebbf08ea2b5abfb5577f865f9681ce0a59ebaad

cd lenovo_b6000-8000_kernel_source/kernel/mediatek
ln -s ../../mediatek/custom custom
ln -s ../../mediatek/kernel kernel
ln -s ../../mediatek/platform platform

And per 9a7c664697db24ea4ee6b71f6ea18f58aa8d47cd

cd lenovo_b6000-8000_kernel_source/mediatek/platform/mt6589/kernel/drivers/dual_ccci
ln -s ../masp/asf asf

1. Set scripts to be executable

cd lenovo_b6000-8000_kernel_source
chmod +x mediatek/build/shell.sh
chmod +x mediatek/build/kernel/build-kernel.sh

1. Edit build-kernel.sh per e6978d2af3120e428f2c688419a59324bfd04a03

1. Install Android SDK & NDK
2. Install Android API 17 (4.2.2/CM10.1)
3. Set up environment:

export ANDROIDSDK=$HOME/android/sdk
export ANDROIDNDK=$HOME/android/ndk
export ANDROIDNDKVER=r9b
export ANDROIDAPI=17
export PATH=$PATH:$ANDROIDNDK/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin

For b6000:

export TARGET_PRODUCT=lenovo89_tb_x8_jb2

For b8000:

export TARGET_PRODUCT=lenovo89_tb_x10_jb2

cd lenovo_b6000-8000_kernel_source/kernel
export MTK_ROOT_CUSTOM=../mediatek/custom/
make

First, follow the above Build steps; then...

cd lenovo_b6000-8000_kernel_source/kernel
export MTK_ROOT_BUILD=../mediatek/build/
../mediatek/build/kernel/build-kernel.sh