path: root/src/soc/intel/baytrail/Kconfig

config SOC_INTEL_BAYTRAIL
	bool
	help
	  Bay Trail M/D part support.

if SOC_INTEL_BAYTRAIL

config CPU_SPECIFIC_OPTIONS
	def_bool y
	select ARCH_X86
	select CACHE_MRC_SETTINGS
	select CAR_MIGRATION
	select COLLECT_TIMESTAMPS
	select CPU_MICROCODE_IN_CBFS
	select DYNAMIC_CBMEM
	select HAVE_MONOTONIC_TIMER
	select HAVE_SMI_HANDLER
	select HAVE_HARD_RESET
	select MMCONF_SUPPORT
	select MMCONF_SUPPORT_DEFAULT
	select RELOCATABLE_MODULES
	select PARALLEL_MP
	select SMM_MODULES
	select SMM_TSEG
	select SMP
	select SPI_FLASH
	select SSE2
	select SUPPORT_CPU_UCODE_IN_CBFS
	select TSC_CONSTANT_RATE
	select TSC_MONOTONIC_TIMER
	select TSC_SYNC_MFENCE
	select UDELAY_TSC

config BOOTBLOCK_CPU_INIT
	string
	default "soc/intel/baytrail/bootblock/bootblock.c"

config MMCONF_BASE_ADDRESS
	hex
	default 0xe0000000

config MAX_CPUS
	int
	default 4

config CPU_ADDR_BITS
	int
	default 36

config SMM_TSEG_SIZE
	hex
	default 0x800000

config SMM_RESERVED_SIZE
	hex
	default 0x100000

config HAVE_MRC
	bool "Add a Memory Reference Code binary"
	default y
	help
	  Select this option to add a blob containing
	  memory reference code.
	  Note: Without this binary coreboot will not work

if HAVE_MRC

config MRC_FILE
	string "Intel memory refeference code path and filename"
	default "3rdparty/northbridge/intel/sandybridge/systemagent-r6.bin"
	help
	  The path and filename of the file to use as System Agent
	  binary. Note that this points to the sandybridge binary file
	  which is will not work, but it serves its purpose to do builds.

config MRC_BIN_ADDRESS
	hex
	default 0xfffa0000

config CACHE_MRC_SETTINGS
	bool "Save cached MRC settings"
	default n

if CACHE_MRC_SETTINGS

config MRC_SETTINGS_CACHE_BASE
	hex
	default 0xffb00000

config MRC_SETTINGS_CACHE_SIZE
	hex
	default 0x10000

endif # CACHE_MRC_SETTINGS

endif # HAVE_MRC

# Cache As RAM region layout:
#
# +-------------+ DCACHE_RAM_BASE + DCACHE_RAM_SIZE + DCACHE_RAM_MRC_VAR_SIZE
# | MRC usage   |
# |             |
# +-------------+ DCACHE_RAM_BASE + DCACHE_RAM_SIZE
# |  Stack      |\
# |    |        | * DCACHE_RAM_ROMSTAGE_STACK_SIZE
# |    v        |/
# +-------------+
# |    ^        |
# |    |        |
# | CAR Globals |
# +-------------+ DCACHE_RAM_BASE
#
# Note that the MRC binary is linked to assume the region marked as "MRC usage"
# starts at DCACHE_RAM_BASE + DCACHE_RAM_SIZE. If those values change then
# a new MRC binary needs to be produced with the updated start and size
# information.

config DCACHE_RAM_BASE
	hex
	default 0xff800000

config DCACHE_RAM_SIZE
	hex
	default 0x8000
	help
	  The size of the cache-as-ram region required during bootblock
	  and/or romstage. Note DCACHE_RAM_SIZE and DCACHE_RAM_MRC_VAR_SIZE
	  must add up to a power of 2.

config DCACHE_RAM_MRC_VAR_SIZE
	hex
	default 0x8000
	help
	  The amount of cache-as-ram region required by the reference code.

config DCACHE_RAM_ROMSTAGE_STACK_SIZE
	hex
	default 0x800
	help
	  The amount of anticipated stack usage from the data cache
	  during pre-ram rom stage execution.

config RESET_ON_INVALID_RAMSTAGE_CACHE
	bool "Reset the system on S3 wake when ramstage cache invalid."
	default n
	depends on RELOCATABLE_RAMSTAGE
	help
	  The baytrail romstage code caches the loaded ramstage program
	  in SMM space. On S3 wake the romstage will copy over a fresh
	  ramstage that was cached in the SMM space. This option determines
	  the action to take when the ramstage cache is invalid. If selected
	  the system will reset otherwise the ramstage will be reloaded from
	  cbfs.

config CBFS_SIZE
	hex "Size of CBFS filesystem in ROM"
	default 0x100000
	help
	  On Bay Trail systems the firmware image has to store a lot more
	  than just coreboot, including:
	   - a firmware descriptor
	   - Intel Management Engine firmware
	   - MRC cache information
	  This option allows to limit the size of the CBFS portion in the
	  firmware image.

config ENABLE_BUILTIN_COM1
	bool "Enable builtin COM1 Serial Port"
	default n
	help
	  The PMC has a legacy COM1 serial port. Choose this option to
	  configure the pads and enable it. This serial port can be used for
	  the debug console.

config HAVE_ME_BIN
	bool "Add Intel Management Engine firmware"
	default y
	help
	  The Intel processor in the selected system requires a special firmware
	  for an integrated controller called Management Engine (ME). The ME
	  firmware might be provided in coreboot's 3rdparty repository. If
	  not and if you don't have the firmware elsewhere, you can still
	  build coreboot without it. In this case however, you'll have to make
	  sure that you don't overwrite your ME firmware on your flash ROM.

config ME_BIN_PATH
	string "Path to management engine firmware"
	depends on HAVE_ME_BIN
	default "3rdparty/mainboard/$(MAINBOARDDIR)/me.bin"

config HAVE_IFD_BIN
	bool
	default y

config BUILD_WITH_FAKE_IFD
	bool "Build with a fake IFD"
	default y if !HAVE_IFD_BIN
	help
	  If you don't have an Intel Firmware Descriptor (ifd.bin) for your
	  board, you can select this option and coreboot will build without it.
	  Though, the resulting coreboot.rom will not contain all parts required
	  to get coreboot running on your board. You can however write only the
	  BIOS section to your board's flash ROM and keep the other sections
	  untouched. Unfortunately the current version of flashrom doesn't
	  support this yet. But there is a patch pending [1].

	  WARNING: Never write a complete coreboot.rom to your flash ROM if it
		   was built with a fake IFD. It just won't work.

	  [1] http://www.flashrom.org/pipermail/flashrom/2013-June/011083.html

config IFD_BIOS_SECTION
	depends on BUILD_WITH_FAKE_IFD
	string
	default ""

config IFD_ME_SECTION
	depends on BUILD_WITH_FAKE_IFD
	string
	default ""

config IFD_PLATFORM_SECTION
	depends on BUILD_WITH_FAKE_IFD
	string
	default ""

config IFD_BIN_PATH
	string "Path to intel firmware descriptor"
	depends on !BUILD_WITH_FAKE_IFD
	default "3rdparty/mainboard/$(MAINBOARDDIR)/descriptor.bin"

endif