b41e38e4a2
Comitting IP checksum code, and its usage in linuxbios table creation. Mods to the dts, so that the device ops for the domain are set to the proper structure. This change is important. It gets rid of the obscure, confusing use of the enable_dev function to pick the right ops for a device. It makes the ops initilization very clear at the top level, in the dts. This has been tested and works, linux boots on Bochs under this version. Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@191 f3766cd6-281f-0410-b1cd-43a5c92072e9
155 lines
5.2 KiB
Makefile
155 lines
5.2 KiB
Makefile
##
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## This file is part of the LinuxBIOS project.
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##
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## Copyright (C) 2006-2007 coresystems GmbH
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## Written by Stefan Reinauer <stepan@coresystems.de> for coresystems GmbH.
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 2 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program; if not, write to the Free Software
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## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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##
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ifeq ($(CONFIG_ARCH_X86),y)
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INITCFLAGS := $(CFLAGS) -I$(src)/include/cpu/generic/x86 -I$(src)/include \
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-fno-builtin
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SILENT := &> /dev/null
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#
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# Build the final ROM image.
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#
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# These are the main LinuxBIOS components. Do not change the order unless you
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# know exactly what you are doing.
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#
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LINUXBIOS_COMPONENTS := linuxbios.lar linuxbios.vpd stage0.init
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$(obj)/linuxbios.rom: $(patsubst %,$(obj)/%,$(LINUXBIOS_COMPONENTS))
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$(Q)cat $^ > $@
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#
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# Build the LAR archive.
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#
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# LinuxBIOS v3 is completely modular and based on a very small startup
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# code (stage0) plus a LAR archive. The LAR archive may contain any number
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# of stages, payloads and option ROMs.
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#
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$(obj)/linuxbios.lar: $(obj)/util/lar/lar lzma $(obj)/linuxbios.initram $(obj)/linuxbios.stage2 payload
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$(Q)printf "Building LinuxBIOS archive... \n"
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$(Q)rm -rf $(obj)/lar.tmp
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$(Q)mkdir $(obj)/lar.tmp
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$(Q)mkdir $(obj)/lar.tmp/normal
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$(Q)cp $(obj)/linuxbios.initram $(obj)/lar.tmp/normal/initram
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$(Q)cp $(obj)/linuxbios.stage2 $(obj)/lar.tmp/normal/stage2
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$(Q)cp $(CONFIG_PAYLOAD) $(obj)/lar.tmp/normal/payload
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$(Q)printf " "
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$(Q)cd $(obj)/lar.tmp && ../util/lar/lar c ../linuxbios.lar.pre normal/initram normal/stage2 normal/payload
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$(Q)# TODO: Dynamically pad the LAR archive. bs is image size - bootblock size (16k)
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$(Q)dd if=$(obj)/linuxbios.lar.pre of=$(obj)/linuxbios.lar \
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bs=245760 count=1 conv=sync $(SILENT)
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#
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# LinuxBIOS stage0. This is the LinuxBIOS "boot block code".
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# It enables Cache-as-RAM and parses the LAR archive for an
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# initram module and the various stages and payload files.
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#
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STAGE0_CONSOLE_OBJ = $(obj)/vtxprintf.o $(obj)/vsprintf.o
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STAGE0_LIB_OBJ = $(obj)/uart8250.o $(obj)/mem.o $(obj)/elfboot.o \
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$(obj)/lar.o
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STAGE0_ARCH_X86_OBJ = $(obj)/cachemain.o $(obj)/console.o $(obj)/serial.o \
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$(obj)/archelfboot.o
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ifeq ($(CONFIG_CAR_TYPE_I586),y)
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STAGE0_CAR_OBJ = $(obj)/stage0_i586.o
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else
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STAGE0_CAR_OBJ = $(obj)/stage0_i586.o
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endif
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STAGE0_OBJ := $(STAGE0_CONSOLE_OBJ) $(STAGE0_LIB_OBJ) $(STAGE0_ARCH_X86_OBJ) $(STAGE0_CAR_OBJ)
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$(obj)/stage0.init: $(STAGE0_OBJ)
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$(Q)printf "Building stage0.init... "
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$(Q)# We need to be careful. If stage0.o gets bigger than
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$(Q)# 0x4000 - 0x100, we will end up with a 4 gig file.
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$(Q)# I wonder if that behavior is on purpose.
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$(Q)$(CC) -nostdlib -static -T $(src)/arch/x86/ldscript.ld \
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$(STAGE0_OBJ) -o $(obj)/stage0.o
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$(Q)objcopy -O binary $(obj)/stage0.o $(obj)/stage0.init
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$(Q)test `wc -c < $(obj)/stage0.init` -gt 16128 && \
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printf "Error. Bootblock got too big.\n" || true
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$(Q)printf "done\n"
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#
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# This is the rest of LinuxBIOS (v2: linuxbios_ram.rom).
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# Is this maybe platform independent, except for the "drivers"?
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# Where should it be built, maybe in device/?
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#
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# TODO: This should be compressed with the default compressor.
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#
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STAGE2_LIB_OBJ = $(obj)/stage2.o $(obj)/clog2.o $(obj)/mem.o $(obj)/malloc.o \
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$(obj)/tables.o $(obj)/delay.o $(obj)/compute_ip_checksum.o
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STAGE2_ARCH_X86_OBJ = $(obj)/archtables.o $(obj)/linuxbios_table.o $(obj)/udelay_io.o
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STAGE2_ARCH_X86_OBJ += $(obj)/pci_ops_auto.o $(obj)/pci_ops_conf1.o $(obj)/pci_ops_conf2.o
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STAGE2_MAINBOARD_OBJ = $(obj)/mainboard.o
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STAGE2_DYNAMIC_OBJ = $(obj)/statictree.o
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STAGE2_OBJ := $(STAGE2_LIB_OBJ) $(STAGE2_DEVICE_OBJ) $(STAGE2_ARCH_X86_OBJ)
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STAGE2_OBJ += $(STAGE2_MAINBOARD_OBJ) $(STAGE2_DYNAMIC_OBJ) $(STAGE2_CHIPSET_OBJ)
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$(obj)/linuxbios.stage2: $(obj)/stage0.init $(STAGE2_OBJ)
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$(Q)printf "Building linuxbios.stage2... "
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$(Q)# leave a .o with full symbols in it for debugging.
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$(Q)$(LD) -R $(obj)/stage0.o -Ttext 0x1000 --entry=stage2 \
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-o $(obj)/linuxbios.stage2.o $(STAGE2_OBJ)
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$(Q)objcopy -O binary $(obj)/linuxbios.stage2.o $(obj)/linuxbios.stage2
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$(Q)printf "done\n"
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#
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# The payload as we love it. Get it from somewhere.
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# Is this a place to incorporate buildrom?
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#
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# TODO: This is not implemented yet.
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# TODO: This needs to be compressed with the default compressor.
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#
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payload:
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$(Q)printf "Building payload... skipped\n"
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# build rules
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#
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$(obj)/%.o: $(src)/arch/x86/%.c
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$(Q)$(CC) $(INITCFLAGS) -c $< -o $@
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$(obj)/%.o: $(src)/mainboard/$(MAINBOARDDIR)/%.c
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$(Q)$(CC) $(INITCFLAGS) -c $< -o $@
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# Building asm stub
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$(obj)/stage0%.o: $(src)/arch/x86/stage0%.S
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$(Q)$(CC) -E $(LINUXBIOSINCLUDE) $< \
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-o $(obj)/stage0_asm.s -DBOOTBLK=0x1f00 -DRESRVED=0xf0 \
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-DDATE=\"`date +%Y/%m/%d`\"
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$(Q)$(AS) $(obj)/stage0_asm.s -o $@
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endif
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