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 24U-Boot MPC8xx video controller driver 25====================================== 26 27The 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 36The 'video-mode' environment variable can be used to enable and configure 37some video drivers. The format matches the video= command-line option used 38for 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 49Example: video-mode=fslfb:1280x1024-32@60,monitor=dvi 50