## ## Compute the location and size of where this firmware image ## (linuxBIOS 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 linuxBIOS 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 linuxBIOS 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 linuxBIOS, ## 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 #object reset.o ## ## Romcc output ## makerule ./failover.E depends "$(MAINBOARD)/failover.c ./romcc" action "./romcc -E -O --label-prefix=failover -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/failover.c -o $@" end makerule ./failover.inc depends "$(MAINBOARD)/failover.c ./romcc" action "./romcc -O --label-prefix=failover -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/failover.c -o $@" end makerule ./auto.E depends "$(MAINBOARD)/auto.c option_table.h ./romcc" action "./romcc -E -mcpu=p2 -O -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/auto.c -o $@" end makerule ./auto.inc depends "$(MAINBOARD)/auto.c option_table.h ./romcc" action "./romcc -mcpu=p2 -O -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/auto.c -o $@" end ## ## Build our 16 bit and 32 bit linuxBIOS 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 linuxBIOS 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 linuxBIOS 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 mainboardinit ./auto.inc ## ## Include the secondary Configuration files ## dir /pc80 config chip.h chip northbridge/amd/lx # they keep changing this. 0:f.0 5c.w to see where it is register "irqmap" = "0xbaba" register "setupflash" = "0" device apic_cluster 0 on chip cpu/amd/model_lx device apic 0 on end end end device pci_domain 0 on device pci 1.0 on end device pci 1.1 on end chip southbridge/amd/cs5536_lx register "isa_irq" = "0" #register "flash_irq" = "14" ## IDE IRQ register "enable_ide_irq" = "0" register "audio_irq" = "5" register "usb_irq" = "7" register "uart0_irq" = "0" register "uart1_irq" = "4" ## PCI INTA ... INTD and their GPIO pins ## int==0: disable register "pci_int[0]" = "0" register "pci_int[1]" = "10" register "pci_int[2]" = "0" register "pci_int[3]" = "0" register "pci_int_pin[0]" = "0" register "pci_int_pin[1]" = "7" register "pci_int_pin[2]" = "0" register "pci_int_pin[3]" = "0" # Keyboard Emulation Logic IRQs # Enable keyboard IRQ2 register "enable_kel_keyb_irq" = "0" # Enable mouse IRQ12 register "enable_kel_mouse_irq" = "0" # Configure KEL Emulation IRQ, 0 to disable register "kel_emul_irq" = "0" device pci f.0 on end # ISA Bridge device pci f.1 on end # Flash controller device pci f.2 off 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 end