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#
# This file is part of the coreboot project.
#
# Copyright (C) 2014 Imagination Technologies
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 2 of
# the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301 USA
#

###############################################################################
# MIPS specific options
###############################################################################

ifeq ($(CONFIG_ARCH_ROMSTAGE_MIPS),y)
CBFSTOOL_PRE1_OPTS = -m mips -b $(CONFIG_BOOTBLOCK_ROM_OFFSET) -H $(CONFIG_CBFS_HEADER_ROM_OFFSET) -o $(CONFIG_CBFS_ROM_OFFSET)
CBFSTOOL_PRE_OPTS = -b 0
endif

###############################################################################
# bootblock
###############################################################################

ifeq ($(CONFIG_ARCH_BOOTBLOCK_MIPS),y)

bootblock-y += boot.c
bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += early_console.c
bootblock-y += stages.c
bootblock-y += timer.c
bootblock-y += ../../lib/memcpy.c
bootblock-y += ../../lib/memmove.c
bootblock-y += ../../lib/memset.c

bootblock_lds = $(src)/arch/mips/bootblock.ld

bootblock_inc += $(src)/arch/mips/bootblock.S
bootblock_inc += $(objgenerated)/bootblock.inc

# Much of the assembly code is generated by the compiler, and may contain
# terms which the preprocessor will happily go on to replace. For example
# "mips" would be replaced with "1". Clear all the built in definitions to
# prevent that.
bootblock-S-ccopts += -undef

$(objgenerated)/bootblock.ld: $$(bootblock_lds) $(obj)/ldoptions
	@printf "    GEN        $(subst $(obj)/,,$(@))\n"
	printf '$(foreach ldscript,ldoptions $(bootblock_lds),INCLUDE "$(ldscript)"\n)' > $@

$(objgenerated)/bootblock_inc.S: $$(bootblock_inc)
	@printf "    GEN        $(subst $(obj)/,,$(@))\n"
	printf '$(foreach crt0,$(bootblock_inc),#include "$(crt0)"\n)' > $@

$(objgenerated)/bootblock.o: $(objgenerated)/bootblock.s
	@printf "    CC         $(subst $(obj)/,,$(@))\n"
	$(CC_bootblock) $(bootblock-S-ccopts) -Wa,-acdlns -c -o $@ $<  > $(basename $@).disasm

$(objgenerated)/bootblock.s: $(objgenerated)/bootblock_inc.S $(obj)/config.h $(obj)/build.h
	@printf "    CC         $(subst $(obj)/,,$(@))\n"
	$(CC_bootblock) $(bootblock-S-ccopts) -MMD -x assembler-with-cpp -E \
			-I$(src)/include -I$(src)/arch/mips/include -I$(obj) \
			-include $(obj)/build.h -include $(obj)/config.h -I. \
			-I$(src) $< -o $@

$(objgenerated)/bootblock.inc: $(src)/arch/mips/$(subst ",,$(CONFIG_BOOTBLOCK_SOURCE)) $(bootblock_custom) $(obj)/config.h
	@printf "    CC      $(subst $(obj)/,,$(@))\n"
	$(CC_bootblock) $(bootblock-c-ccopts) $(CFLAGS_bootblock) -MM \
		-MT$(objgenerated)/bootblock.inc \
		$< > $(objgenerated)/bootblock.inc.d
	$(CC_bootblock) $(bootblock-c-ccopts) -c -S $(CFLAGS_bootblock) -I. $< -o $@

$(objcbfs)/bootblock.debug:  $(objgenerated)/bootblock.o $(objgenerated)/bootblock.ld $$(bootblock-objs) $(obj)/config.h
	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
	$(CC_bootblock)  $(CFLAGS_bootblock) -nostdlib -Wl,--gc-sections -nostartfiles -include $(obj)/config.h -static -o $@ -L$(obj) -T $(objgenerated)/bootblock.ld -Wl,--start-group $(objgenerated)/bootblock.o $(bootblock-objs) -Wl,--end-group

endif # CONFIG_ARCH_BOOTBLOCK_MIPS

###############################################################################
# romstage
###############################################################################

ifeq ($(CONFIG_ARCH_ROMSTAGE_MIPS),y)

romstage-y += boot.c
romstage-$(CONFIG_EARLY_CONSOLE) += early_console.c
romstage-y += stages.c
romstage-y += timer.c
romstage-y += ../../lib/memcpy.c
romstage-y += ../../lib/memmove.c
romstage-y += ../../lib/memset.c

romstage-lds = $(src)/arch/mips/romstage.ld

$(objcbfs)/romstage.debug: $$(romstage-objs) $(objgenerated)/romstage.ld
	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
	$(CC_romstage) -nostdlib -Wl,--gc-sections -nostartfiles -static -o $@ -L$(obj) -T $(objgenerated)/romstage.ld -Wl,--start-group $(romstage-objs) -Wl,--end-group

$(objgenerated)/romstage.ld: $$(romstage-lds) $(obj)/ldoptions
	@printf "    GEN        $(subst $(obj)/,,$(@))\n"
	rm -f $@
	printf '$(foreach ldscript,ldoptions $(romstage-lds),INCLUDE "$(ldscript:$(obj)/%=%)"\n)' >> $@.tmp
	mv $@.tmp $@

endif # CONFIG_ARCH_ROMSTAGE_MIPS

###############################################################################
# ramstage
###############################################################################

ifeq ($(CONFIG_ARCH_RAMSTAGE_MIPS),y)

ramstage-y += ashldi3.c
ramstage-y += boot.c
ramstage-y += stages.c
ramstage-y += tables.c
ramstage-y += timer.c
ramstage-y += ../../lib/memcpy.c
ramstage-y += ../../lib/memmove.c
ramstage-y += ../../lib/memset.c
ramstage-srcs += $(wildcard src/mainboard/$(MAINBOARDDIR)/mainboard.c)

ramstage-lds = $(src)/arch/mips/ramstage.ld

$(objgenerated)/ramstage.ld: $$(ramstage-lds) $(obj)/ldoptions
	@printf "    GEN        $(subst $(obj)/,,$(@))\n"
	rm -f $@
	printf '$(foreach ldscript,ldoptions $(ramstage-lds),INCLUDE "$(ldscript:$(obj)/%=%)"\n)' >> $@.tmp
	mv $@.tmp $@

$(objcbfs)/ramstage.debug: $(objgenerated)/ramstage.o $(objgenerated)/ramstage.ld
	@printf "    CC         $(subst $(obj)/,,$(@))\n"
	$(CC_ramstage) -nostdlib -Wl,--gc-sections -nostartfiles -static -o $@ -L$(obj) -T $(objgenerated)/ramstage.ld $<

$(objgenerated)/ramstage.o: $$(ramstage-objs)
	@printf "    CC         $(subst $(obj)/,,$(@))\n"
	$(CC_ramstage) $(CFLAGS_ramstage) -nostdlib -r -o $@ -Wl,--start-group $(ramstage-objs) -Wl,--end-group

endif # CONFIG_ARCH_RAMSTAGE_MIPS