projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 5b1d7137 WD |
1 | /* |
| 2 | * (C) Copyright 2000 | |
| 3 | * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), [email protected] | |
| 4 | * | |
| 1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
| 5b1d7137 WD |
6 | */ |
| 7 | ||
| 8 | U-Boot MPC8xx video controller driver | |
| 9 | ====================================== | |
| 10 | ||
| 11 | The driver has been tested with the following configurations: | |
| 12 | ||
| 53677ef1 | 13 | - MPC823FADS with AD7176 on a PAL TV (YCbYCr) - [email protected] |
| 5b1d7137 | 14 | - GENIETV with AD7177 on a PAL TV (YCbYCr) - [email protected] |
| a5dbdc81 TT |
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 |