README.video 1.8 KB

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  1. /*
  2. * (C) Copyright 2000
  3. * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
  4. *
  5. * See file CREDITS for list of people who contributed to this
  6. * project.
  7. *
  8. * This program is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU General Public License as
  10. * published by the Free Software Foundation; either version 2 of
  11. * the License, or (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21. * MA 02111-1307 USA
  22. */
  23. U-Boot MPC8xx video controller driver
  24. ======================================
  25. The driver has been tested with the following configurations:
  26. - MPC823FADS with AD7176 on a PAL TV (YCbYCr) - arsenio@tin.it
  27. - GENIETV with AD7177 on a PAL TV (YCbYCr) - arsenio@tin.it
  28. "video-mode" environment variable
  29. ===============================
  30. The 'video-mode' environment variable can be used to enable and configure
  31. some video drivers. The format matches the video= command-line option used
  32. for Linux:
  33. video-mode=<driver>:<xres>x<yres>-<depth>@<freq><,option=string>
  34. <driver> The video driver name, ignored by U-Boot
  35. <xres> The X resolution (in pixels) to use.
  36. <yres> The Y resolution (in pixels) to use.
  37. <depth> The color depth (in bits) to use.
  38. <freq> The frequency (in Hz) to use.
  39. <options> A comma-separated list of device-specific options
  40. Example: video-mode=fslfb:1280x1024-32@60,monitor=dvi