1# SPDX-License-Identifier: GPL-2.0-only 2 3config NORTHBRIDGE_INTEL_I945 4 bool 5 select HAVE_DEBUG_RAM_SETUP 6 select VGA 7 select INTEL_GMA_ACPI 8 select INTEL_GMA_SSC_ALTERNATE_REF 9 select INTEL_EDID 10 select HAVE_VGA_TEXT_FRAMEBUFFER if MAINBOARD_DO_NATIVE_VGA_INIT 11 select USE_DDR2 12 select NEED_SMALL_2MB_PAGE_TABLES 13 14if NORTHBRIDGE_INTEL_I945 15 16config VBOOT 17 select VBOOT_STARTS_IN_BOOTBLOCK 18config NORTHBRIDGE_INTEL_SUBTYPE_I945GC 19 def_bool n 20config NORTHBRIDGE_INTEL_SUBTYPE_I945GM 21 def_bool n 22 23config VGA_BIOS_ID 24 string 25 default "8086,27a2" if NORTHBRIDGE_INTEL_SUBTYPE_I945GM 26 default "8086,2772" if NORTHBRIDGE_INTEL_SUBTYPE_I945GC 27 28config I945_LVDS 29 def_bool n 30 select MAINBOARD_HAS_NATIVE_VGA_INIT 31 select HAVE_LINEAR_FRAMEBUFFER if MAINBOARD_DO_NATIVE_VGA_INIT 32 help 33 Selected by mainboards that use native graphics initialization 34 for the LVDS port. A linear framebuffer is only supported for 35 LVDS. 36 37config ECAM_MMCONF_BASE_ADDRESS 38 default 0xf0000000 39 40config ECAM_MMCONF_BUS_NUMBER 41 int 42 default 64 43 44config OVERRIDE_CLOCK_DISABLE 45 bool 46 default n 47 help 48 Usually system firmware turns off system memory clock 49 signals to unused SO-DIMM slots to reduce EMI and power 50 consumption. 51 However, some boards do not like unused clock signals to 52 be disabled. 53 54config MAXIMUM_SUPPORTED_FREQUENCY 55 int 56 default 0 57 help 58 If non-zero, this designates the maximum DDR frequency 59 the board supports, despite what the chipset should be 60 capable of. 61 62config CHECK_SLFRCS_ON_RESUME 63 def_bool n 64 help 65 On some boards it may be necessary to hard reset early 66 during resume from S3 if the SLFRCS register indicates that 67 a memory channel is not guaranteed to be in self-refresh. 68 On other boards the check always creates a false positive, 69 effectively making it impossible to resume. 70 71config SMM_RESERVED_SIZE 72 hex 73 default 0x100000 74 75config MAX_CPUS 76 int 77 default 4 78 79config FIXED_MCHBAR_MMIO_BASE 80 default 0xfed14000 81 82config FIXED_DMIBAR_MMIO_BASE 83 default 0xfed18000 84 85config FIXED_EPBAR_MMIO_BASE 86 default 0xfed19000 87 88endif 89