doc/README.video

   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
  24 U-Boot MPC8xx video controller driver
  25 ======================================
  26
  27 The driver has been tested with the following configurations:
  28
  29 - MPC823FADS with AD7176 on a PAL TV (YCbYCr)   - arsenio@tin.it
  30 - GENIETV    with AD7177 on a PAL TV (YCbYCr)   - arsenio@tin.it
  31
  32
  33 "video-mode" environment variable
  34 ===============================
  35
  36 The 'video-mode' environment variable can be used to enable and configure
  37 some video drivers.  The format matches the video= command-line option used
  38 for Linux:
  39
  40         video-mode=<driver>:<xres>x<yres>-<depth>@<freq><,option=string>
  41
  42         <driver>        The video driver name, ignored by U-Boot
  43         <xres>          The X resolution (in pixels) to use.
  44         <yres>          The Y resolution (in pixels) to use.
  45         <depth>         The color depth (in bits) to use.
  46         <freq>          The frequency (in Hz) to use.
  47         <options>       A comma-separated list of device-specific options
  48
  49 Example: video-mode=fslfb:1280x1024-32@60,monitor=dvi