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## SPDX-License-Identifier: GPL-2.0-only
config NORTHBRIDGE_INTEL_SANDYBRIDGE
bool
select CACHE_MRC_SETTINGS
select CPU_INTEL_MODEL_206AX
select HAVE_DEBUG_RAM_SETUP
select INTEL_GMA_ACPI
if NORTHBRIDGE_INTEL_SANDYBRIDGE
config NORTHBRIDGE_SPECIFIC_OPTIONS
def_bool y
select NO_DDR5
select NO_LPDDR4
select NO_DDR4
select NO_DDR2
select USE_DDR3
config CHIPSET_DEVICETREE
default "northbridge/intel/sandybridge/chipset.cb"
config SANDYBRIDGE_VBOOT_IN_ROMSTAGE
bool
default n
help
Selected by boards to force VBOOT_STARTS_IN_ROMSTAGE.
config SANDYBRIDGE_VBOOT_IN_BOOTBLOCK
depends on VBOOT
depends on !SANDYBRIDGE_VBOOT_IN_ROMSTAGE
bool "Start verstage in bootblock"
default y
select VBOOT_STARTS_IN_BOOTBLOCK
help
Sandy Bridge can either start verstage in a separate stage
right after the bootblock has run or it can start it
after romstage for compatibility reasons.
Sandy Bridge however uses a mrc.bin to initialize memory which
needs to be located at a fixed offset. Therefore even with
a separate verstage starting after the bootblock that same
binary is used meaning a jump is made from RW to the RO region
and back to the RW region after the binary is done.
config VBOOT
select VBOOT_MUST_REQUEST_DISPLAY
select VBOOT_STARTS_IN_ROMSTAGE if !SANDYBRIDGE_VBOOT_IN_BOOTBLOCK
config USE_NATIVE_RAMINIT
bool "Use native raminit"
default y
help
Select if you want to use coreboot implementation of raminit rather than
System Agent/MRC.bin. You should answer Y.
config NATIVE_RAMINIT_IGNORE_MAX_MEM_FUSES
bool "Ignore vendor programmed fuses that limit max. DRAM frequency"
default n
depends on USE_NATIVE_RAMINIT
help
Ignore the mainboard's vendor programmed fuses that might limit the
maximum DRAM frequency. By selecting this option the fuses will be
ignored and the only limits on DRAM frequency are set by RAM's SPD and
hard fuses in southbridge's clockgen.
Disabled by default as it might causes system instability.
Handle with care!
config NATIVE_RAMINIT_IGNORE_XMP_MAX_DIMMS
bool "Ignore XMP profile max DIMMs per channel"
default n
depends on USE_NATIVE_RAMINIT
help
Ignore the max DIMMs per channel restriciton defined in XMP profiles.
Disabled by default as it might cause system instability.
Handle with care!
config NATIVE_RAMINIT_IGNORE_XMP_REQUESTED_VOLTAGE
bool "Ignore XMP profile requested voltage"
default n
depends on USE_NATIVE_RAMINIT
help
Native raminit only supports 1.5V operation, but there are DIMMs
which request 1.65V operation in XMP profiles. This option allows
raminit to use these XMP profiles anyway, instead of falling back
to non-XMP settings.
Disabled by default because it allows forcing memory to run out of
specification. Consider this to be an overclocking option.
Handle with care!
config CBFS_SIZE
default 0x100000
config VGA_BIOS_ID
string
default "8086,0106"
config ECAM_MMCONF_BASE_ADDRESS
default 0xf0000000
help
The MRC blob requires it to be at 0xf0000000.
config ECAM_MMCONF_BUS_NUMBER
int
default 64
config DCACHE_RAM_BASE
hex
default 0xfefe0000
config DCACHE_BSP_STACK_SIZE
hex
default 0x10000
help
The amount of BSP stack anticipated in bootblock and
other stages.
if USE_NATIVE_RAMINIT
config DCACHE_RAM_SIZE
hex
default 0x20000
config DCACHE_RAM_MRC_VAR_SIZE
hex
default 0x0
config RAMINIT_ALWAYS_ALLOW_DLL_OFF
bool "Also enable memory DLL-off mode on desktops and servers"
default n
help
If enabled, allow enabling DLL-off mode for platforms other than
mobile. Saves power at the expense of higher exit latencies. Has
no effect on mobile platforms, where DLL-off is always allowed.
Power down is disabled for stability when running at high clocks.
config RAMINIT_ENABLE_ECC
bool "Enable ECC if supported"
default y
help
Enable ECC if supported by both, host and RAM.
endif # USE_NATIVE_RAMINIT
if !USE_NATIVE_RAMINIT
config DCACHE_RAM_SIZE
hex
default 0x17000
config DCACHE_RAM_MRC_VAR_SIZE
hex
default 0x9000
config MRC_FILE
string "Intel System Agent path and filename"
default "3rdparty/blobs/northbridge/intel/sandybridge/systemagent-r6.bin"
help
The path and filename of the file to use as System Agent
binary.
endif # !USE_NATIVE_RAMINIT
config INTEL_GMA_BCLV_OFFSET
default 0x48254
config FIXED_MCHBAR_MMIO_BASE
default 0xfed10000
config FIXED_DMIBAR_MMIO_BASE
default 0xfed18000
config FIXED_EPBAR_MMIO_BASE
default 0xfed19000
endif
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