mks5lboot v1.0 - dualboot installer for s5l8702 targets

A tool to install/uninstall a bootloader into a s5l8702 based device:

- iPod Classic 6G
- iPod Nano 3G (TODO)

See mks5lboot/README for detailed info.

Change-Id: I451d2aaff34509ebd356e4660647e5222c5d3409

rbutil/mks5lboot/dualboot/Makefile

@@ -0,0 +1,97 @@
+#             __________               __   ___.
+#   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+#   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+#   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+#   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+#                     \/            \/     \/    \/            \/
+# $Id$
+#
+ifndef V
+SILENT = @
+endif
+
+CC = gcc
+LD = ld
+OC = objcopy
+CROSS ?= arm-elf-eabi-
+
+ROOTDIR  = ../../..
+FIRMDIR  = $(ROOTDIR)/firmware
+FWARM    = $(FIRMDIR)/target/arm
+FW8702   = $(FWARM)/s5l8702
+BUILDDIR = build/
+LINKFILE = dualboot.lds
+
+# Edit the following variables when adding a new target.
+# mks5lboot.c also needs to be edited to refer to these
+# To add a new target x you need to:
+# 1) add x to the list in TARGETS
+# 2) create a variable named OPT_x of the form:
+#    OPT_x=target specific defines
+TARGETS = ipod6g
+OPT_ipod6g = -DIPOD_6G -DMEMORYSIZE=64
+
+LOADERS = install uninstall
+OPT_install =
+OPT_uninstall = -DDUALBOOT_UNINSTALL
+
+# target/loader specific options
+$(foreach l, $(LOADERS),$(foreach t, $(TARGETS),\
+	$(eval OPT_$(l)_$(t) = $(OPT_$(l)) $(OPT_$(t)))))
+
+DEFINES = -DBOOTLOADER
+
+SOURCES  = init.S dualboot.c
+SOURCES += $(ROOTDIR)/lib/arm_support/support-arm.S
+SOURCES += $(wildcard $(FIRMDIR)/asm/mem*.c $(FIRMDIR)/libc/mem*.c)
+SOURCES += $(addprefix $(FWARM)/, mmu-arm.S)
+SOURCES += $(addprefix $(FW8702)/, clocking-s5l8702.c spi-s5l8702.c nor-s5l8702.c crypto-s5l8702.c)
+# target/loader specific sources
+SRCTARGET = piezo-.c
+$(foreach l, $(LOADERS), $(foreach t, $(TARGETS),\
+	$(eval SRC_$(l)_$(t) = $(addprefix $(FW8702)/$(t)/, $(subst -.,-$(subst ipod,,$(t)).,$(SRCTARGET))))))
+
+INCLUDES += -I. -I.. -I$(FIRMDIR) -I$(FWARM) -I$(FW8702)
+INCLUDES += $(addprefix -I$(FIRMDIR)/, export include libc/include kernel/include)
+# target/loader specific includes
+$(foreach l,$(LOADERS),$(foreach t,$(TARGETS),$(eval INC_$(l)_$(t) = -I$(FW8702)/$(t))))
+
+CFLAGS = $(INCLUDES) -mcpu=arm926ej-s -std=gnu99 -nostdlib -ffreestanding -Os -W -Wall\
+		-Wundef -Wstrict-prototypes -ffunction-sections -fdata-sections -Wl,--gc-sections $(DEFINES)
+
+# Build filenames prefix
+PFX = dualboot_
+
+BOOTBINS = $(foreach l, $(LOADERS),$(foreach t, $(TARGETS),$(PFX)$(l)_$(t).arm-bin))
+
+OUTPUTDUALBOOT = ../dualboot.h ../dualboot.c
+OUTPUTDEBUG = $(BOOTBINS:%.arm-bin=$(BUILDDIR)%.arm-elf) $(BOOTBINS:%.arm-bin=$(BUILDDIR)%.lds)
+
+
+all: $(BUILDDIR) $(OUTPUTDUALBOOT)
+
+$(BUILDDIR)$(PFX)%.lds: $(LINKFILE)
+	@echo Creating $@
+	$(SILENT)$(CROSS)$(CC) $(INC_$*) $(CFLAGS) $(OPT_$*) -E -x c - < $< | sed '/#/d' > $@
+
+$(BUILDDIR)$(PFX)%.arm-elf: $(BUILDDIR)$(PFX)%.lds $(SOURCES)
+	@echo CC -T $(notdir $^ $(SRC_$*))
+	$(SILENT)$(CROSS)$(CC) $(INC_$*) $(CFLAGS) $(OPT_$*) -o $@ -T$^ $(SRC_$*)
+
+$(PFX)%.arm-bin: $(BUILDDIR)$(PFX)%.arm-elf
+	@echo OC $<
+	$(SILENT)$(CROSS)$(OC) -O binary $< $@
+
+bin2c: bin2c.c
+	$(CC) -o $@ $<
+
+$(OUTPUTDUALBOOT): bin2c $(BOOTBINS)
+	./bin2c ../dualboot $(BOOTBINS)
+
+$(BUILDDIR):
+	mkdir -p $@
+
+clean:
+	rm -rf bin2c $(BOOTBINS) $(BUILDDIR)
+
+.PRECIOUS: $(OUTPUTDEBUG)