## ## Compute the location and size of where this firmware image ## (coreboot plus bootloader) will live in the boot rom chip. ## if USE_FALLBACK_IMAGE default ROM_SECTION_SIZE = FALLBACK_SIZE default ROM_SECTION_OFFSET = ( ROM_SIZE - FALLBACK_SIZE ) else default ROM_SECTION_SIZE = ( ROM_SIZE - FALLBACK_SIZE ) default ROM_SECTION_OFFSET = 0 end ## ## Compute the start location and size size of ## The coreboot bootloader. ## default CONFIG_ROM_PAYLOAD_START = (0xffffffff - ROM_SIZE + ROM_SECTION_OFFSET + 1) default PAYLOAD_SIZE = ( ROM_SECTION_SIZE - ROM_IMAGE_SIZE ) ## ## Compute where this copy of coreboot will start in the boot rom ## default _ROMBASE = ( CONFIG_ROM_PAYLOAD_START + PAYLOAD_SIZE ) ## ## Compute a range of ROM that can cached to speed up coreboot, ## execution speed. ## ## XIP_ROM_SIZE must be a power of 2. ## XIP_ROM_BASE must be a multiple of XIP_ROM_SIZE ## default XIP_ROM_SIZE=65536 default XIP_ROM_BASE = ( _ROMBASE + ROM_IMAGE_SIZE - XIP_ROM_SIZE ) ## ## Set all of the defaults for an x86 architecture ## arch i386 end ## ## Build the objects we have code for in this directory. ## driver mainboard.o if HAVE_PIRQ_TABLE object irq_tables.o end if USE_DCACHE_RAM #compile cache_as_ram.c to auto.inc makerule ./cache_as_ram_auto.inc depends "$(MAINBOARD)/cache_as_ram_auto.c option_table.h" action "$(CC) $(DISTRO_CFLAGS) -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/cache_as_ram_auto.c -Os -nostdinc -nostdlib -fno-builtin -Wall $(DEBUG_CFLAGS) -c -S -o $@" action "perl -e 's/\.rodata/.rom.data/g' -pi $@" action "perl -e 's/\.text/.section .rom.text/g' -pi $@" end end ## ## Build our 16 bit and 32 bit coreboot entry code ## mainboardinit cpu/x86/16bit/entry16.inc mainboardinit cpu/x86/32bit/entry32.inc ldscript /cpu/x86/16bit/entry16.lds ldscript /cpu/x86/32bit/entry32.lds ## ## Build our reset vector (This is where coreboot is entered) ## if USE_FALLBACK_IMAGE mainboardinit cpu/x86/16bit/reset16.inc ldscript /cpu/x86/16bit/reset16.lds else mainboardinit cpu/x86/32bit/reset32.inc ldscript /cpu/x86/32bit/reset32.lds end ### Should this be in the northbridge code? mainboardinit arch/i386/lib/cpu_reset.inc ## ## Include an id string (For safe flashing) ## mainboardinit arch/i386/lib/id.inc ldscript /arch/i386/lib/id.lds ### ### This is the early phase of coreboot startup ### Things are delicate and we test to see if we should ### failover to another image. ### if USE_FALLBACK_IMAGE ldscript /arch/i386/lib/failover.lds # mainboardinit ./failover.inc end ### ### O.k. We aren't just an intermediary anymore! ### ## ## Setup RAM ## mainboardinit cpu/x86/fpu/enable_fpu.inc if USE_DCACHE_RAM mainboardinit cpu/amd/model_lx/cache_as_ram.inc mainboardinit ./cache_as_ram_auto.inc end ## ## Include the secondary Configuration files ## dir /pc80 config chip.h chip northbridge/amd/lx device pci_domain 0 on device pci 1.0 on end device pci 1.1 on end chip southbridge/amd/cs5536 # IRQ 12 and 1 unmasked, Keyboard and Mouse IRQs. OK # SIRQ Mode = Active(Quiet) mode. Save power.... # Invert mask = IRQ 12 and 1 are active high. Keyboard and Mouse IRQs. OK # How to get these? Boot linux and do this: # rdmsr 0x51400025 register "lpc_serirq_enable" = "0x0000105a" # rdmsr 0x5140004e -- polairy is high 16 bits of low 32 bits register "lpc_serirq_polarity" = "0x0000EFA5" # mode is high 10 bits (determined from code) register "lpc_serirq_mode" = "1" # Don't yet know how to find this. register "enable_gpio_int_route" = "0x0D0C0700" register "enable_ide_nand_flash" = "0" # 0:ide mode, 1:flash register "enable_USBP4_device" = "0" #0: host, 1:device register "enable_USBP4_overcurrent" = "0" #0:off, xxxx:overcurrent setting CS5536 Data Book (pages 380-381) register "com1_enable" = "0" register "com1_address" = "0x3F8" register "com1_irq" = "4" register "com2_enable" = "0" register "com2_address" = "0x2F8" register "com2_irq" = "3" register "unwanted_vpci[0]" = "0" # End of list has a zero device pci f.0 on # ISA Bridge chip superio/winbond/w83627hf device pnp 2e.0 off # Floppy io 0x60 = 0x3f0 irq 0x70 = 6 drq 0x74 = 2 end device pnp 2e.1 off # Parallel Port io 0x60 = 0x378 irq 0x70 = 7 end device pnp 2e.2 on # Com1 io 0x60 = 0x3f8 irq 0x70 = 4 end device pnp 2e.3 on # Com2 io 0x60 = 0x2f8 irq 0x70 = 3 end device pnp 2e.5 on # Keyboard io 0x60 = 0x60 io 0x62 = 0x64 irq 0x70 = 1 irq 0x72 = 12 end device pnp 2e.6 off # CIR io 0x60 = 0x100 end device pnp 2e.7 off # GAME_MIDI_GIPO1 io 0x60 = 0x220 io 0x62 = 0x300 irq 0x70 = 9 end device pnp 2e.8 off end # GPIO2 device pnp 2e.9 off end # GPIO3 device pnp 2e.a off end # ACPI device pnp 2e.b on # HW Monitor io 0x60 = 0x290 irq 0x70 = 5 end end end device pci f.1 on end # Flash controller device pci f.2 on end # IDE controller device pci f.3 on end # Audio device pci f.4 on end # OHCI device pci f.5 on end # EHCI end end # APIC cluster is late CPU init. device apic_cluster 0 on chip cpu/amd/model_lx device apic 0 on end end end end