3 Commits

Author	SHA1	Message	Date
Simon Glass	9818a00eea	x86: ivybridge: Set up an MTRR for the video frame buffer ... Set the frame buffer to write-combining. This makes it faster, although for scrolling write-through is even faster for U-Boot. Signed-off-by: Simon Glass <sjg@chromium.org>	2015-01-13 07:25:00 -08:00
Simon Glass	d19ee5c27e	x86: ivybridge: Only run the Video BIOS when video is enabled ... This takes about about 700ms on link when running natively and 900ms when running using the emulator. It is a waste of time if video is not enabled, so don't bother running the video BIOS in that case. We could add a command to run the video BIOS later when needed, but this is not considered at present. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>	2015-01-13 07:24:59 -08:00
Simon Glass	effcf067df	x86: Add initial video device init for Intel GMA ... Intel's Graphics Media Accelerator (GMA) is a generic name for a wide range of video devices. Add code to set up the hardware on ivybridge. Part of the init happens in native code, part of it happens in a 16-bit option ROM for those nostalgic for the 1970s. Signed-off-by: Simon Glass <sjg@chromium.org>	2014-11-25 07:11:16 -07:00