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authorTom Rini <trini@konsulko.com>2015-04-20 09:13:52 -0400
committerTom Rini <trini@konsulko.com>2015-04-20 09:13:52 -0400
commit1733259d25015c28c47990ec11af99b3f62f811c (patch)
tree654c376440e5b01603e88dc22047d657f635def7 /README
parent791a9f67f4f8db512cf59b40f47544fb335cd8db (diff)
parentfc1a79d95e9038e9cf53f99c1825005b4dfaf7f4 (diff)
downloadtalos-obmc-uboot-1733259d25015c28c47990ec11af99b3f62f811c.zip
talos-obmc-uboot-1733259d25015c28c47990ec11af99b3f62f811c.tar.gz
Merge branch 'master' of git://git.denx.de/u-boot-video
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+++ b/README
@@ -1947,6 +1947,26 @@ CBFS (Coreboot Filesystem) support
the console jump but can help speed up operation when scrolling
is slow.
+ CONFIG_LCD_ROTATION
+
+ 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.
+
CONFIG_LCD_BMP_RLE8
Support drawing of RLE8-compressed bitmaps on the LCD.
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