
R8A7796 GX6250 Graphics Startup Guide

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1. BUILD
   To use this software, the kernel module source code for GX6250 which is distributed 
   based on GPLv2 / MIT dual licenses is required. 
   Please contact a Renesas sales office how to get this additional software.

   1) Building Linux system
      Refer to "Linux Interface Specification Yocto recipe Start-Up Guide" provided 
      by R-Car H3/M3/M3N/E3 Yocto recipe package, for details of its building procedures.
      Use the Linux kernel and file system which are created by the following commands.
      
      $ bitbake core-image-weston

2. USAGE
   1) Boot up Linux

   2) Confirm GX6250 operation
      Execute the following procedures after booting a Linux kernel and check that 
      a drawing result is displayed on the display monitor connected to a target system.
      
      # weston-simple-egl 

   [In case used by Null WS environment]
   1) Boot up Linux

   2) Stop Graphics
      Stop Weston by the following commands.
      # systemctl stop weston@root

   3) Change WindowSystem module for Graphics
      Change configuration file named powervr.ini which is under /etc in a target file 
      system. The modification is shown below.
      
      [Before]
      WindowSystem=libpvrWAYLAND_WSEGL.so

      [After]
      WindowSystem=libpvrDRM_WSEGL.so

   4) Confirm GX6250 operation
      Execute OES3_Texture which is provided as sample application after booting a Linux 
      kernel, and check that a drawing result is displayed on the display monitor connected 
      to a target system.


STARTUPGUIDE.TXT  / March 2021
