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##
## 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/gx2
device apic_cluster 0 on
chip cpu/amd/model_gx2
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
register "lpc_serirq_enable" = "0x80" # enabled with default timing
register "lpc_irq" = "((1<<3)|(1<<4))" # IRQ 3 & 4
register "enable_gpio0_inta" = "1"
device pci d.0 on end # Realtek 8139 LAN
device pci f.0 on end # ISA Bridge
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.4 on end # UHCI
end
end
end
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