src/northbridge/intel/i945/Kconfig

# SPDX-License-Identifier: GPL-2.0-only

config NORTHBRIDGE_INTEL_I945
	bool
	select HAVE_DEBUG_RAM_SETUP
	select VGA
	select INTEL_GMA_ACPI
	select INTEL_GMA_SSC_ALTERNATE_REF
	select INTEL_EDID
	select HAVE_VGA_TEXT_FRAMEBUFFER if MAINBOARD_DO_NATIVE_VGA_INIT
	select NO_DDR5
	select NO_LPDDR4
	select NO_DDR4
	select NO_DDR3
	select USE_DDR2

if NORTHBRIDGE_INTEL_I945

config VBOOT
	select VBOOT_STARTS_IN_BOOTBLOCK
config NORTHBRIDGE_INTEL_SUBTYPE_I945GC
	def_bool n
config NORTHBRIDGE_INTEL_SUBTYPE_I945GM
	def_bool n

config VGA_BIOS_ID
	string
	default "8086,27a2" if NORTHBRIDGE_INTEL_SUBTYPE_I945GM
	default "8086,2772" if NORTHBRIDGE_INTEL_SUBTYPE_I945GC

config I945_LVDS
	def_bool n
	select MAINBOARD_HAS_NATIVE_VGA_INIT
	select HAVE_LINEAR_FRAMEBUFFER if MAINBOARD_DO_NATIVE_VGA_INIT
	help
	  Selected by mainboards that use native graphics initialization
	  for the LVDS port. A linear framebuffer is only supported for
	  LVDS.

config ECAM_MMCONF_BASE_ADDRESS
	default 0xf0000000

config ECAM_MMCONF_BUS_NUMBER
	int
	default 64

config OVERRIDE_CLOCK_DISABLE
	bool
	default n
	help
	  Usually system firmware turns off system memory clock
	  signals to unused SO-DIMM slots to reduce EMI and power
	  consumption.
	  However, some boards do not like unused clock signals to
	  be disabled.

config MAXIMUM_SUPPORTED_FREQUENCY
	int
	default 0
	help
	  If non-zero, this designates the maximum DDR frequency
	  the board supports, despite what the chipset should be
	  capable of.

config CHECK_SLFRCS_ON_RESUME
	def_bool n
	help
	  On some boards it may be necessary to hard reset early
	  during resume from S3 if the SLFRCS register indicates that
	  a memory channel is not guaranteed to be in self-refresh.
	  On other boards the check always creates a false positive,
	  effectively making it impossible to resume.

config SMM_RESERVED_SIZE
	hex
	default 0x100000

config MAX_CPUS
	int
	default 4

config FIXED_MCHBAR_MMIO_BASE
	default 0xfed14000

config FIXED_DMIBAR_MMIO_BASE
	default 0xfed18000

config FIXED_EPBAR_MMIO_BASE
	default 0xfed19000

endif