On Wed, 27 Apr 2016 21:39:16 +0200 Martin Pietryka martin.pietryka@chello.at wrote:
The DMA was outputting the palette on the screen because the base for the DMA was not after the palette. In addition to that, the ceiling was also too high, this led that the output on the screen was shifted.
NOTE: According to the TRM, even in 16/24bit mode a palette is required in the first 32 bytes of the framebuffer.
See also: https://e2e.ti.com/support/arm/sitara_arm/f/791/p/234967/834483#834483
"In this mode, the LCDC will assume all information is data and thus you need to ensure that the DMA points to the first pixel of data and not the first entry in the frame buffer which is the beginning of the 512 byte palette."
Signed-off-by: Martin Pietryka martin.pietryka@chello.at Reviewed-by: Hannes Schmelzer oe5hpm@oevsv.at Tested-by: Hannes Schmelzer oe5hpm@oevsv.at
Changes in v3: None
drivers/video/am335x-fb.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
appied to u-boot-video/master, thanks!
-- Anatolij