##
## 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	"$(MAINBOARD)/auto.c ./romcc" 
	action	"./romcc -E -mcpu=i386 -O -I$(TOP)/src -I. $(CPPFLAGS) $(MAINBOARD)/auto.c -o $@"
end
makerule ./auto.inc 
	depends "$(MAINBOARD)/auto.c ./romcc"
	action	"./romcc    -mcpu=i386 -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 cpu/x86/mmx/enable_mmx.inc
mainboardinit ./auto.inc
mainboardinit cpu/x86/mmx/disable_mmx.inc

##
## Include the secondary Configuration files 
##
dir /pc80
config chip.h

chip northbridge/intel/i440bx		# Northbridge
  device pci_domain 0 on
    device pci 0.0 on end		# Host bridge
    device pci 1.0 on end		# AGP bridge
    chip southbridge/intel/i82371eb	# Southbridge
      device pci 7.0 on			# ISA bridge
        chip superio/nsc/pc87309	# Super I/O
          device pnp 2e.5 on		# PS/2 keyboard (+ mouse?)
            io 0x60 = 0x60
            io 0x62 = 0x64
            irq 0x70 = 1
            # irq 0x72 = 12
          end
          device pnp 2e.b on		# Com1
            io 0x60 = 0x3f8
            irq 0x70 = 4
          end
          device pnp 2e.c on		# Com2 / IR
            io 0x60 = 0x2f8
            irq 0x70 = 3
          end
          device pnp 2e.d on		# Parallel port
            io 0x60 = 0x378
            irq 0x70 = 7
          end
          device pnp 2e.e on		# Floppy
            io 0x60 = 0x3f0
            irq 0x70 = 6
            drq 0x74 = 2
          end
          device pnp 2e.f on		# PS/2 mouse
            irq 0x70 = 12
          end
        end
      end
      device pci 7.1 on end		# IDE
      device pci 7.2 on end		# USB
      device pci 7.3 on end		# ACPI
      register "ide0_enable" = "1"
      register "ide1_enable" = "1"
    end
  end
  chip cpu/intel/slot_2			# CPU
  end
end