|author||Tom Rini <email@example.com>||2015-04-20 09:13:52 -0400|
|committer||Tom Rini <firstname.lastname@example.org>||2015-04-20 09:13:52 -0400|
Merge branch 'master' of git://git.denx.de/u-boot-video
Diffstat (limited to 'README')
1 files changed, 20 insertions, 0 deletions
@@ -1947,6 +1947,26 @@ CBFS (Coreboot Filesystem) support
the console jump but can help speed up operation when scrolling
+ Sometimes, for example if the display is mounted in portrait
+ mode or even if it's mounted landscape but rotated by 180degree,
+ we need to rotate our content of the display relative to the
+ framebuffer, so that user can read the messages which are
+ printed out.
+ Once CONFIG_LCD_ROTATION is defined, the lcd_console will be
+ initialized with a given rotation from "vl_rot" out of
+ "vidinfo_t" which is provided by the board specific code.
+ The value for vl_rot is coded as following (matching to
+ fbcon=rotate:<n> linux-kernel commandline):
+ 0 = no rotation respectively 0 degree
+ 1 = 90 degree rotation
+ 2 = 180 degree rotation
+ 3 = 270 degree rotation
+ If CONFIG_LCD_ROTATION is not defined, the console will be
+ initialized with 0degree rotation.
Support drawing of RLE8-compressed bitmaps on the LCD.