BPI-M3-PVR-SGX

Bananapi M3 BSP with PVR SGX Driver

This Project is based on the Sinovoip BPI-M3-bsp. Since the Sinvoip repo is most of the time broken, I buildt up a repo where everything should work. The intention of this Repo is to build a reliable reverse engineering platform for the PVR-SGX driver.

Setup

ubuntu 14.04 LTS

required packages:

sudo apt-get install build-essential libncurses5-dev
sudo apt-get install gcc-arm-linux-gnueabi u-boot-tools device-tree-compiler

Configure kernel

make kernel-menuconfig

Build kernel

make kernel

Transfer Kernel & Modules to SD-Card

Requirements for the Script

The BOOT partition should be mounted in this direcectory : /media/${CURRENT_USER}/BPI-BOOT/ and the ROOT Partition should be mounted here: /media/${CURRENT_USER}/BPI-BOOT/

Run Script

cd scripts
./transfer_sd_card.sh

Kown Issues

• Hardfloat issue: This processor should be normaly built with gcc-arm-linux-gnueabihf-
• Needs ubuntu 14.04LTS
• if you change the config somehow, kernel breaks.

Todo:

• Write function similar to PDUMPMEM

Enable infos for Reverese engineering

1. make kernel-menuconfig
2. Go to Device Drivers --> Graphics Support --> [] IMGTEC PowerVR SGX GPU Support --> [] Add a special printk for Driver Reverse engineering
3. Quit menuconfig and save config
4. Build Kernel
5. Replace uImage, uEnv.txt, script.bin and sys_config.fex on the boot partition
6. Replace the Modules
7. Boot your device
8. run dmesg or capture bootlog