uses HAVE_MP_TABLE
uses HAVE_PIRQ_TABLE
uses USE_FALLBACK_IMAGE
uses HAVE_FALLBACK_BOOT
uses HAVE_HARD_RESET
uses HAVE_OPTION_TABLE
uses USE_OPTION_TABLE
uses CONFIG_ROM_STREAM
uses IRQ_SLOT_COUNT
uses MAINBOARD
uses ARCH
uses FALLBACK_SIZE
uses STACK_SIZE
uses HEAP_SIZE
uses ROM_SIZE
uses ROM_SECTION_SIZE
uses ROM_IMAGE_SIZE
uses ROM_SECTION_SIZE
uses ROM_SECTION_OFFSET
uses CONFIG_ROM_STREAM_START
uses PAYLOAD_SIZE
uses _ROMBASE
uses XIP_ROM_SIZE
uses XIP_ROM_BASE
uses HAVE_MP_TABLE

## ROM_SIZE is the size of boot ROM that this board will use.
default ROM_SIZE  = 256*1024

###
### Build options
###

##
## Build code for the fallback boot
##
default HAVE_FALLBACK_BOOT=1

##
## no MP table
##
default HAVE_MP_TABLE=0

##
## Build code to reset the motherboard from linuxBIOS
##
default HAVE_HARD_RESET=1

##
## Build code to export a programmable irq routing table
##
default HAVE_PIRQ_TABLE=1
default IRQ_SLOT_COUNT=5
object irq_tables.o

##
## Build code to export a CMOS option table
##
default HAVE_OPTION_TABLE=1

###
### LinuxBIOS layout values
###

## ROM_IMAGE_SIZE is the amount of space to allow linuxBIOS to occupy.
default ROM_IMAGE_SIZE = 65536

##
## Use a small 8K stack
##
default STACK_SIZE=0x2000

##
## Use a small 16K heap
##
default HEAP_SIZE=0x4000

##
## Only use the option table in a normal image
##
#default USE_OPTION_TABLE = !USE_FALLBACK_IMAGE
default USE_OPTION_TABLE = 0

##
## 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 PAYLOAD_SIZE            = ( ROM_SECTION_SIZE - ROM_IMAGE_SIZE )
default CONFIG_ROM_STREAM_START = (0xffffffff - ROM_SIZE + ROM_SECTION_OFFSET + 1)
default CONFIG_ROM_STREAM     = 1

##
## Compute where this copy of linuxBIOS will start in the boot rom
##
default _ROMBASE      = ( CONFIG_ROM_STREAM_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
#object reset.o

##
## Romcc output
##
makerule ./failover.E
	depends "$(MAINBOARD)/failover.c" 
	action "$(CPP) -I$(TOP)/src $(ROMCCPPFLAGS) $(CPPFLAGS) $(MAINBOARD)/failover.c > ./failover.E"
end

makerule ./failover.inc
	depends "./failover.E ./romcc"
	action "./romcc -O -mcpu=c3 -o failover.inc --label-prefix=failover ./failover.E"
end

makerule ./auto.E 
	depends	"$(MAINBOARD)/auto.c" 
	action	"$(CPP) -I$(TOP)/src $(ROMCCPPFLAGS) $(CPPFLAGS) $(MAINBOARD)/auto.c > ./auto.E"
end
makerule ./auto.inc 
	depends "./auto.E ./romcc"
	action	"./romcc   -O -mcpu=c3 ./auto.E "
end

##
## Build our 16 bit and 32 bit linuxBIOS entry code
##
mainboardinit cpu/i386/entry16.inc
mainboardinit cpu/i386/entry32.inc
ldscript /cpu/i386/entry16.lds
ldscript /cpu/i386/entry32.lds

##
## Build our reset vector (This is where linuxBIOS is entered)
##
if USE_FALLBACK_IMAGE 
	mainboardinit cpu/i386/reset16.inc 
	ldscript /cpu/i386/reset16.lds 
else
	mainboardinit cpu/i386/reset32.inc 
	ldscript /cpu/i386/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

##
## Setup our mtrrs
##
# mainboardinit cpu/p6/earlymtrr.inc

###
### 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 ./auto.inc

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

chip northbridge/amd/sc520
	chip southbridge amd/sc520
		register "enable_usb" = "0"
		register "enable_native_ide" = "1"
		register "enable_com_ports" = "1"
		register "enable_keyboard" = "0"
		register "enable_nvram" = "1"
	end
	chip cpu/amd/sc520
end