| wdenk | 5b1d713 | 2002-11-03 00:07:02 +0000 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2000 |
| 3 | * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it |
| 4 | * |
| Wolfgang Denk | d79de1d | 2013-07-08 09:37:19 +0200 | [diff] [blame] | 5 | * SPDX-License-Identifier: GPL-2.0+ |
| wdenk | 5b1d713 | 2002-11-03 00:07:02 +0000 | [diff] [blame] | 6 | */ |
| 7 | |
| 8 | U-Boot MPC8xx video controller driver |
| 9 | ====================================== |
| 10 | |
| 11 | The driver has been tested with the following configurations: |
| 12 | |
| Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 13 | - MPC823FADS with AD7176 on a PAL TV (YCbYCr) - arsenio@tin.it |
| wdenk | 5b1d713 | 2002-11-03 00:07:02 +0000 | [diff] [blame] | 14 | - GENIETV with AD7177 on a PAL TV (YCbYCr) - arsenio@tin.it |
| Timur Tabi | 5576092 | 2011-03-21 16:38:49 -0500 | [diff] [blame] | 15 | |
| 16 | |
| 17 | "video-mode" environment variable |
| 18 | =============================== |
| 19 | |
| 20 | The 'video-mode' environment variable can be used to enable and configure |
| 21 | some video drivers. The format matches the video= command-line option used |
| 22 | for Linux: |
| 23 | |
| 24 | video-mode=<driver>:<xres>x<yres>-<depth>@<freq><,option=string> |
| 25 | |
| 26 | <driver> The video driver name, ignored by U-Boot |
| 27 | <xres> The X resolution (in pixels) to use. |
| 28 | <yres> The Y resolution (in pixels) to use. |
| 29 | <depth> The color depth (in bits) to use. |
| 30 | <freq> The frequency (in Hz) to use. |
| 31 | <options> A comma-separated list of device-specific options |
| 32 | |
| 33 | Example: video-mode=fslfb:1280x1024-32@60,monitor=dvi |