AM335x graphics support

olrex

Hi
I am just about to start working with the AM335x and need to understand the possibilities to support OpenGL and Qt with a 4.1.x kernel.

I am new to the TI SDKs but understand there is a Processor SDK (software-dl.ti.com/.../index_FDS.html) with Linux kernel 4.1.18 support. According to the "Processor SDK Linux release notes" there is some graphics support provided in that SDK, "Graphics: SGX acceleration with Wayland Windowing System, now supported on AM335x".

There is however also a graphics SDK (processors.wiki.ti.com/.../RN_5_01_01_02) which seems to be more spot on if I want OpenGL support, but that SDK only supports the 3.14 kernel.

Is there any way I can use the AM335x with kernel 4.1.x and OpenGL support? A related question is if there are any graphics drivers in open source (I assume TI's aren't).

Thanks,
Ola

over 10 years ago

0 Biser Gatchev-XID over 10 years ago

TI__Guru**** 393215 points

Hi,

I will ask the software team to comment.

0 Yordan Kovachev over 10 years ago

TI__Guru**** 161600 points

Hi Ola,

The graphics SDK is obsolete, it is for older SDK releases. Since SDK2.0, graphics SDK is provided as part of the SDK installation.

More information can be found on the following link:
processors.wiki.ti.com/.../Processor_SDK_Linux_Software_Developer’s_Guide
Have a look at the Multimedie & Graphics & Display section.

For building QT with OpenGL support, you can refer to this link:
processors.wiki.ti.com/.../Building_Qt_with_OpenGL_ES_accelerated_by_SGX

Hope this helps.

Best Regards,
Yordan

0 olrex over 10 years ago in reply to Yordan Kovachev

Prodigy 20 points

Thank you for this clarification Yordan! It really helps.

As follow up questions then: Are the graphics drivers all closed source? Are there open source alternatives (if only partial)?

Thanks,
Ola

0 Yordan Kovachev over 10 years ago in reply to olrex

TI__Guru**** 161600 points

Hi Ola,

Graphics drivers are located in ti-processor-sdk-linux-am335x-evm-02.00.02.11/board-support/extra-drivers/omapdrm-pvr-1.14.3699939. You can build them using the top level make file:
cd ~/ti-processor-sdk-linux-am335x-evm-02.00.02.11
export ARCH=arm
export PATH=$PATH:~/ti-processor-sdk-linux-am335x-evm-02.00.02.11/linux-devkit/sysroots/x86_64-arago-linux/usr/bin
export CROSS_COMPILE=arm-linux-gnueabihf-
make omapdrm-pvr_clean
make omapdrm-pvr

Have a look at ~/ti-processor-sdk-linux-am335x-evm-02.00.02.11/Makefile.

Best Regards,
Yordan

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AM335x graphics support