[coreboot] Patch merged into coreboot/master: 6bde149 samsung/exynos5: add display port and framebuffer defines and initialization
gerrit at coreboot.org
gerrit at coreboot.org
Wed Mar 6 23:41:43 CET 2013
the following patch was just integrated into master:
commit 6bde149d9c56a824eff5db7bb06d7c386fb2be30
Author: Ronald G. Minnich <rminnich at gmail.com>
Date: Fri Mar 1 10:18:14 2013 -0800
samsung/exynos5: add display port and framebuffer defines and initialization
These are essential functions for setting up the display port and
framebuffer, and also enable such things as aux channel
communications. We do some very simple initialization in romstage,
mainly set a GPIO so that the graphics is powering up, but the complex
parts are done in the ramstage. This mirrors the way in which graphics
is done in the x86 size.
I've added a first pass at a real device, and put it in the mainboard
Kconfig, hoping for corrections. Because startup is so complex,
depending on device type, I've created a 'displayport' device that
removes some of the complexity and makes the flow *much* clearer. You
can actually follow the flow by looking at the code, which is not true
on other implementations. Since display port is perhaps the main port
used on these chips, that's a reasonable compromise. All parameters of
importance are now in the device tree.
Change-Id: I56400ec9016ecb8716ec5a5dae41fdfbfff4817a
Signed-off-by: Ronald G. Minnich <rminnich at gmail.com>
Reviewed-on: http://review.coreboot.org/2570
Tested-by: build bot (Jenkins)
Build-Tested: build bot (Jenkins) at Wed Mar 6 23:33:36 2013, giving +1
Reviewed-By: Ronald G. Minnich <rminnich at gmail.com> at Wed Mar 6 23:41:42 2013, giving +2
See http://review.coreboot.org/2570 for details.
-gerrit
More information about the coreboot
mailing list