From 6bde149d9c56a824eff5db7bb06d7c386fb2be30 Mon Sep 17 00:00:00 2001 From: "Ronald G. Minnich" Date: Fri, 1 Mar 2013 10:18:14 -0800 Subject: 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 Reviewed-on: http://review.coreboot.org/2570 Tested-by: build bot (Jenkins) --- src/mainboard/google/snow/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'src/mainboard/google/snow/Kconfig') diff --git a/src/mainboard/google/snow/Kconfig b/src/mainboard/google/snow/Kconfig index 6face944bb..85b90a5a3a 100644 --- a/src/mainboard/google/snow/Kconfig +++ b/src/mainboard/google/snow/Kconfig @@ -1,7 +1,7 @@ ## ## This file is part of the coreboot project. ## -## Copyright (C) 2012 The ChromiumOS Authors. All rights reserved. +## Copyright 2013 Google Inc. ## ## This program is free software; you can redistribute it and/or modify ## it under the terms of the GNU General Public License as published by @@ -29,6 +29,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy select DRIVER_MAXIM_MAX77686 # select HAVE_ACPI_TABLES # select MMCONF_SUPPORT + select EXYNOS_DISPLAYPORT select CHROMEOS config MAINBOARD_DIR -- cgit v1.2.3