91ce4b2a60
In order to enable it, #define HAVE_DUALBOOT when building the bootloader. Do not use the automatically created x5_fw.bin or m5_fw.bin, but use mkboot to create a new firmware file from an OF x5_fw.bin resp. m5_fw.bin and bootloader.bin. The dual-boot bootloader boots the OF when pressing Play (main or remote) for more than 3 seconds. Hold it a bit longer because the OF also checks buttons. Short press boots rockbox. As a bonus, the Play button read (for hold check) is done a bit earlier for single-boot mode as well. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30018 a1c6a512-1295-4272-9138-f99709370657
39 lines
1.4 KiB
Makefile
39 lines
1.4 KiB
Makefile
# __________ __ ___.
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# Open \______ \ ____ ____ | | _\_ |__ _______ ___
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# Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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# Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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# Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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# \/ \/ \/ \/ \/
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# $Id$
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#
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INCLUDES += -I$(APPSDIR)
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SRC += $(call preprocess, $(APPSDIR)/SOURCES)
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CONFIGFILE := $(FIRMDIR)/export/config/$(MODELNAME).h
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BOOTLDS := $(FIRMDIR)/target/$(CPU)/$(MANUFACTURER)/boot.lds
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BOOTLINK := $(BUILDDIR)/boot.link
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CLEANOBJS += $(BUILDDIR)/bootloader.*
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.SECONDEXPANSION:
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$(BOOTLINK): $(BOOTLDS) $(CONFIGFILE)
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$(call PRINTS,PP $(@F))
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$(call preprocess2file,$<,$@,-DLOADADDRESS=$(LOADADDRESS))
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$(BUILDDIR)/bootloader.elf: $$(OBJ) $$(FIRMLIB) $$(BOOTLINK)
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$(call PRINTS,LD $(@F))$(CC) $(GCCOPTS) -Os -nostdlib -o $@ $(OBJ) \
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$(FIRMLIB) -lgcc -L$(BUILDDIR)/firmware -T$(BOOTLINK) \
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$(GLOBAL_LDOPTS) \
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-Wl,--gc-sections -Wl,-Map,$(BUILDDIR)/bootloader.map
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$(BUILDDIR)/bootloader.bin : $(BUILDDIR)/bootloader.elf
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$(call PRINTS,OBJCOPY $(@F))$(OC) $(if $(filter yes, $(USE_ELF)), -S -x, -O binary) $< $@
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$(BUILDDIR)/bootloader.asm: $(BUILDDIR)/bootloader.bin
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$(TOOLSDIR)/sh2d -sh1 $< > $@
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$(BUILDDIR)/$(BINARY) : $(BUILDDIR)/bootloader.bin
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$(call PRINTS,Build bootloader file)$(MKFIRMWARE) $< $@
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