path: root/src/arch/x86/Kconfig

##
## This file is part of the coreboot project.
##
## Copyright (C) 2009-2010 coresystems GmbH
##
## 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 ARCH_X86
	bool
	default n
	select PCI

# stage selectors for x86

config ARCH_BOOTBLOCK_X86_32
	bool
	default n
	select ARCH_X86
	select BOOTBLOCK_CUSTOM if !C_ENVIRONMENT_BOOTBLOCK

config ARCH_VERSTAGE_X86_32
	bool
	default n

config ARCH_ROMSTAGE_X86_32
	bool
	default n

config ARCH_RAMSTAGE_X86_32
	bool
	default n

# stage selectors for x64

config ARCH_BOOTBLOCK_X86_64
	bool
	default n
	select ARCH_X86
	select BOOTBLOCK_CUSTOM if !C_ENVIRONMENT_BOOTBLOCK

config ARCH_VERSTAGE_X86_64
	bool
	default n

config ARCH_ROMSTAGE_X86_64
	bool
	default n

config ARCH_RAMSTAGE_X86_64
	bool
	default n

config USE_MARCH_586
	def_bool n
	help
	  Allow a platform or processor to select to be compiled using
	  the '-march=i586' option instead of the typical '-march=i686'

# This is an SMP option. It relates to starting up APs.
# It is usually set in mainboard/*/Kconfig.
# TODO: Improve description.
config AP_IN_SIPI_WAIT
	bool
	default n
	depends on ARCH_X86 && SMP

# Aligns 16bit entry code in bootblock so that hyper-threading CPUs
# can boot AP CPUs to enable their shared caches.
config SIPI_VECTOR_IN_ROM
	bool
	default n
	depends on ARCH_X86

config RAMBASE
	hex
	default 0x100000

config RAMTOP
	hex
	default 0x200000
	depends on ARCH_X86

# Traditionally BIOS region on SPI flash boot media was memory mapped right below
# 4G and it was the last region in the IFD. This way translation between CPU
# address space to flash address was trivial. However some IFDs on newer SoCs
# have BIOS region sandwiched between descriptor and other regions. Turning off
# this option enables soc code to provide custom mmap_boot.c which can be used to
# implement complex translation.
config X86_TOP4G_BOOTMEDIA_MAP
	bool
	default y

# This is something you almost certainly don't want to mess with.
# How many SIPIs do we send when starting up APs and cores?
# The answer in 2000 or so was '2'. Nowadays, on many systems,
# it is 1. Set a safe default here, and you can override it
# on reasonable platforms.
config NUM_IPI_STARTS
	int
	default 2

config ROMCC
	bool
	default n

config CBMEM_TOP_BACKUP
	def_bool n
	help
	  Platform implements non-volatile storage to cache cbmem_top()
	  over stage transitions and optionally also over S3 suspend.

config LATE_CBMEM_INIT
	def_bool n
	select CBMEM_TOP_BACKUP
	help
	  Enable this in chipset's Kconfig if northbridge does not implement
	  early get_top_of_ram() call for romstage. CBMEM tables will be
	  allocated late in ramstage, after PCI devices resources are known.

config PRERAM_CBMEM_CONSOLE_SIZE
	hex
	default 0xc00
	help
	  Increase this value if preram cbmem console is getting truncated

config PC80_SYSTEM
	bool
	default y if ARCH_X86

config BOOTBLOCK_DEBUG_SPINLOOP
	bool
	default n
	help
	  Add a spin (JMP .) in bootblock_crt0.S during early bootblock to wait
	  for a JTAG debugger to break into the execution sequence.

config BOOTBLOCK_MAINBOARD_INIT
	string

config BOOTBLOCK_NORTHBRIDGE_INIT
	string

config BOOTBLOCK_RESETS
	string

config BOOTBLOCK_SAVE_BIST_AND_TIMESTAMP
	bool
	default n
	help
	  Select this value to provide a routine to save the BIST and timestamp
	  values.  The default code places the BIST value in MM0 and the
	  timestamp value in MM2:MM1.  Another file is necessary when the CPU
	  does not support the MMx register set.

config HAVE_CMOS_DEFAULT
	def_bool n
	depends on HAVE_OPTION_TABLE

config CMOS_DEFAULT_FILE
	string
	default "src/mainboard/$(MAINBOARDDIR)/cmos.default"
	depends on HAVE_CMOS_DEFAULT

config BOOTBLOCK_SOUTHBRIDGE_INIT
	string

config IOAPIC_INTERRUPTS_ON_FSB
	bool
	default y if !IOAPIC_INTERRUPTS_ON_APIC_SERIAL_BUS

config IOAPIC_INTERRUPTS_ON_APIC_SERIAL_BUS
	bool
	default n

config HPET_ADDRESS
	hex
	default 0xfed00000 if !HPET_ADDRESS_OVERRIDE

config ID_SECTION_OFFSET
	hex
	default 0x80

# 64KiB default bootblock size when employing C_ENVIRONMENT_BOOTBLOCK.
config C_ENV_BOOTBLOCK_SIZE
	hex
	default 0x10000

# Default address romstage is to be linked at
config ROMSTAGE_ADDR
	hex
	default 0x2000000

# Default address verstage is to be linked at
config VERSTAGE_ADDR
	hex
	default 0x2000000

# Use the post CAR infrastructure for tearing down cache-as-ram
# from a program loaded in RAM and subsequently loading ramstage.
config POSTCAR_STAGE
	def_bool n
	select NO_CAR_GLOBAL_MIGRATION
	select RELOCATABLE_MODULES

config VERSTAGE_DEBUG_SPINLOOP
	bool
	default n
	help
	  Add a spin (JMP .) in assembly_entry.S during early verstage to wait
	  for a JTAG debugger to break into the execution sequence.

config ROMSTAGE_DEBUG_SPINLOOP
	bool
	default n
	help
	  Add a spin (JMP .) in assembly_entry.S during early romstage to wait
	  for a JTAG debugger to break into the execution sequence.

choice
	prompt "Bootblock behaviour"
	default BOOTBLOCK_SIMPLE

config BOOTBLOCK_SIMPLE
	bool "Always load fallback"

config BOOTBLOCK_NORMAL
	bool "Switch to normal if CMOS says so"

endchoice

config BOOTBLOCK_SOURCE
	string
	default "bootblock_simple.c" if BOOTBLOCK_SIMPLE
	default "bootblock_normal.c" if BOOTBLOCK_NORMAL

config SKIP_MAX_REBOOT_CNT_CLEAR
	bool "Do not clear reboot count after successful boot"
	depends on BOOTBLOCK_NORMAL
	help
	  Do not clear the reboot count immediately after successful boot.
	  Set to allow the payload to control normal/fallback image recovery.
	  Note that it is the responsibility of the payload to reset the
	  normal boot bit to 1 after each successsful boot.