##
## This file is part of the coreboot project.
##
## Copyright 2013 Google Inc.
## Copyright 2016-2017 secunet Security Networks AG
##
## 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
## the Free Software Foundation; version 2 of the License.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.
##

config INTEL_DDI
	bool
	default n
	help
	  helper functions for intel DDI operations

config INTEL_EDID
	bool
	default n

config INTEL_INT15
	bool
	default n

config INTEL_GMA_ACPI
	bool
	default n

config INTEL_GMA_SSC_ALTERNATE_REF
	bool
	default n
	help
	  Set when the SSC reference clock for LVDS runs at a different fre-
	  quency than the general display reference clock.

	  To be set by northbridge or mainboard Kconfig.  For most platforms,
	  there is no choice, i.e. for i945 and gm45 the SSC reference always
	  differs from the display reference clock (i945: 66Mhz SSC vs. 48MHz
	  DREF; gm45: 100MHz SSC vs. 96Mhz DREF), for Nehalem and newer, it's
	  the same frequency for SSC/non-SSC (120MHz).  The only, currently
	  supported platform with a choice seems to be Pineview, where the
	  alternative is 100MHz vs. the default 96MHz.

config INTEL_GMA_SWSMISCI
	bool
	default n
	help
	  Select this option for Atom-based platforms which use the SWSMISCI
	  register (0xe0) rather than the SWSCI register (0xe8).

config GFX_GMA_ANALOG_I2C_HDMI_B
	bool

config GFX_GMA_ANALOG_I2C_HDMI_C
	bool

config GFX_GMA_ANALOG_I2C_HDMI_D
	bool

config GFX_GMA
	def_bool y
	depends on NORTHBRIDGE_INTEL_GM45 || NORTHBRIDGE_INTEL_X4X \
		|| NORTHBRIDGE_INTEL_NEHALEM || NORTHBRIDGE_INTEL_SANDYBRIDGE \
		|| NORTHBRIDGE_INTEL_IVYBRIDGE || NORTHBRIDGE_INTEL_HASWELL \
		|| SOC_INTEL_BROADWELL || SOC_INTEL_SKYLAKE || SOC_INTEL_APOLLOLAKE
	depends on MAINBOARD_USE_LIBGFXINIT
	select RAMSTAGE_LIBHWBASE

config GFX_GMA_INTERNAL_IS_EDP
	bool
	depends on GFX_GMA || MAINBOARD_HAS_LIBGFXINIT
	default n if GFX_GMA_INTERNAL_IS_LVDS
	default y

config GFX_GMA_INTERNAL_IS_LVDS
	bool
	depends on GFX_GMA || MAINBOARD_HAS_LIBGFXINIT
	default y if NORTHBRIDGE_INTEL_GM45 || NORTHBRIDGE_INTEL_NEHALEM
	default n

if GFX_GMA

config GFX_GMA_DYN_CPU
	def_bool y
	help
	  Activates runtime CPU detection in libgfxinit.

config GFX_GMA_GENERATION
	string
	default "Broxton" if SOC_INTEL_APOLLOLAKE
	default "Skylake" if SOC_INTEL_SKYLAKE
	default "Haswell" if NORTHBRIDGE_INTEL_HASWELL || SOC_INTEL_BROADWELL
	default "Ironlake" if NORTHBRIDGE_INTEL_NEHALEM || NORTHBRIDGE_INTEL_SANDYBRIDGE || NORTHBRIDGE_INTEL_IVYBRIDGE
	default "G45" if NORTHBRIDGE_INTEL_GM45 || NORTHBRIDGE_INTEL_X4X

config GFX_GMA_INTERNAL_PORT
	string
	default "DP" if GFX_GMA_INTERNAL_IS_EDP
	default "LVDS"

config GFX_GMA_ANALOG_I2C_PORT
	string
	default "PCH_HDMI_B" if GFX_GMA_ANALOG_I2C_HDMI_B
	default "PCH_HDMI_C" if GFX_GMA_ANALOG_I2C_HDMI_C
	default "PCH_HDMI_D" if GFX_GMA_ANALOG_I2C_HDMI_D
	default "PCH_DAC"
	help
	  Boards with a DVI-I connector share the I2C pins for both analog and
	  digital displays. In that case, the EDID for a VGA display has to be
	  read over the I2C interface of the coupled digital port.

endif