Driver source code for Mali graphics used on the VIA VAB-600 board.
Due to ARM's licensing requirements, only some part of the driver is open source,
while the core libMali.so and libUMP.so libraries are proprietary and provided
as precompiled binaries.
This release is a work in progress.
Building the r3p2 release requires approximately these steps. The installed packages
and settings are to cross-compile on Ubuntu 15.10, but other Linux distributions should
be similar. The instructions are given for compiling for Hard Float (armhf) build.
Install the basic required packages:
sudo apt-get build-essential automake libtool xorg-dev libdrm-dev xutils-dev
Install the tools for cross-compilation. Please note, that gcc 4.x is supported for these drivers, the 5.x line does not work.
sudo apt-get install gcc-4.9-arm-linux-gnueabihf g++-4.9-arm-linux-gnueabihf
Need to manually add the symlinks for the relevant binaries. For armhf:
cd /usr/bin/
for f in arm-linux-gnueabihf-*-*; do echo $f; sudo ln -s $f ${f%%-4.9}; done
Prepare the VAB-600 Linux kernel in a directory. Either you have it already, copy it
from the BSP, or clone it from the VAB-600 Kernel BSP Github repo. In
this guide we'll assume to have it at vab600-kernel-bsp at the root of this repository.
Prepare the kernel by running the following command
Kernel:
make ARCH=arm VAB-600_Linux_defconfig
make ARCH=arm menuconfig # Change General Setup > Cross Compiler Tool prefix
# the toolchain installed above:
# arm-linux-gnueabihf-
make ARCH=arm prepare
make ARCH=arm modules
You can use the provided experimental Makefile to prepare the entire driver package
in one go. In the r3p2 directory run
make
There are a number of parameters to adjust, and their default value is:
KVER=3.0.8 # Kernel version from the previous step
KDIR=$(PWD)/../vab600-kernel-bsp # Kernel directory from the previous step
ABI=armhf # Currently can create only armhf drivers, not armel
CROSS_COMPILE=arm-linux-gnueabihf- # Cross compile toolchain prefix from setup
In most cases you would need to adjust the values of KDIR or CROSS_COMPILE, and then
you'd need to run:
make KDIR=<kernel directory> CROSS_COMPILE=<cross compiler prefix>
The resulting driver package will be generated at vab600-libMali-r3p2-armhf.tar.gz.
Below are the detailed steps to compile the drivers piecemeal, if for any reason the quick steps would fail.
In vab600-mali/r3p2/DX910-SW-99002-r3p2-01rel0/ now you can run the following command
to compile the Mali kernel driver:
make KVER=3.0.8 KDIR=${PWD}/../../vab600-kernel-bsp/ TARGET_PLATFORM=wm3481 CROSS_COMPILE=arm-linux-gnueabihf- STRIP=arm-linux-gnueabihf-strip BUILD=release
The resulting drivers will be packaged up in a file such as DX910-SW-99002-r3p2-01rel0-20151209-1.tgz
in the same directory (different file name according to the compilation date).
Enter the vab600-mali/r3p2/DX910-SW-99003-r3p2-01rel0/ directory. Symlink the appropriate precompiled modules proprietary drivers to the prebuilt directory, e.g. the armhf drivers such as:
ln -s ${PWD}/../libMali/armhf/usr prebuilt/usr
Then compile the drivers withe following commands:
make CC=arm-linux-gnueabihf-gcc CXX=arm-linux-gnueabihf-g++ AR=arm-linux-gnueabihf-ar RANLIB=arm-linux-gnueabihf-ranlib STRIP=arm-linux-gnueabihf-strip
make CC=arm-linux-gnueabihf-gcc CXX=arm-linux-gnueabihf-g++ AR=arm-linux-gnueabihf-ar RANLIB=arm-linux-gnueabihf-ranlib STRIP=arm-linux-gnueabihf-strip install
The resulting drivers will be packed up in a file such as DX910-SW-99003-r3p2-01rel0-20151209-1.armhf.tgz
in the same direct (different file name according to the compilation date).