karo: tx6: selectively set individual CCGR bits via DCD

[karo-tx-uboot.git] / doc / README.video

diff --git a/doc/README.video b/doc/README.video
index d0a3ad6e8d455f52843778a93aa7a760f66c1b65..62ac17b0490f96cbbc07665eb6411dfa039aa332 100644 (file)
--- a/doc/README.video
+++ b/doc/README.video
@@ -40,12 +40,15 @@ requires the CONFIG_VIDEO_LCD_MODE Kconfig value to be set.
 
 The sunxi u-boot driver supports the following video-mode options:
 
-- monitor=[none|dvi|hdmi|lcd] - Select the video output to use
+- monitor=[none|dvi|hdmi|lcd|vga|composite-*] - Select the video output to use
  none:     Disable video output.
  dvi/hdmi: Selects output over the hdmi connector with dvi resp. hdmi output
            format, if edid is used the format is automatically selected.
  lcd:      Selects video output to a LCD screen.
- vga:      Selects bideo output over the VGA connector.
+ vga:      Selects video output over the VGA connector.
+ composite-pal/composite-ntsc/composite-pal-m/composite-pal-nc:
+           Selects composite video output, note the specified resolution is
+           ignored with composite video output.
  Defaults to monitor=dvi.
 
 - hpd=[0|1] - Enable use of the hdmi HotPlug Detect feature
@@ -65,6 +68,11 @@ The sunxi u-boot driver supports the following video-mode options:
     overrides the xres, yres and refresh from the video-mode env. variable.
  Defaults to edid=1.
 
+- overscan_x/overscan_y=<int> - Set x/y overscan value
+ This configures a black border on the left and right resp. top and bottom
+ to deal with overscanning displays. Defaults to overscan_x=32 and
+ overscan_y=20 for composite monitors, 0 for other monitors.
+
 For example to always use the hdmi connector, even if no cable is inserted,
 using edid info when available and otherwise initalizing it at 1024x768@60Hz,
 use: "setenv video-mode sunxi:1024x768-24@60,monitor=dvi,hpd=0,edid=1".