###############################################################################
#
# Beaglebone Black makefile
#
#
PLATFORM		= BEAGLEBONEBLACK
TOPDIR			= $(UMONTOP)
TGTDIR			= beagleboneblack
CPUTYPE			= arm
FILETYPE		= elf
TOOLSET			= RTEMS

ifeq ($(TOOLSET),RTEMS)
#
# Using tools built by RTEMS Source Builder:
#
ABIDIR          = $(HOME)/development/rtems/4.11/lib/gcc/arm-rtems4.11/4.9.2
TOOL_PREFIX     = arm-rtems4.11
else
#
# Using tools installed by "sudo apt-get install gcc-arm-none-eabi"...
#
ABIDIR          = /usr/lib/gcc/arm-none-eabi/4.8.2
TOOL_PREFIX     = /usr/bin/arm-none-eabi
endif

LIBABIDIR       = -L $(ABIDIR)
COMMON_AFLAGS	= -c -D PLATFORM_$(PLATFORM)=1 -D ASSEMBLY_ONLY 
CUSTOM_CFLAGS	= -mcpu=cortex-a8 -O2 -isystem $(ABIDIR)/include -Wno-char-subscripts


###############################################################################
#
# Memory map configuration:
# The following variables are used to establish the system's memory map.
# 
BOOTROMBASE=0x402F0400
BOOTROMLEN=0x00DA00
BOOTRAMBASE=0x402FDE00
BOOTRAMLEN=0x00DA00
RAMTSTROMBASE=0x80100000
RAMTSTROMLEN=0x100000
ATAGSIZE=0x1000

# These next two hard-coded values are used by the ramtst version of
# uMon to allow it to know where these flash-based structures are located.
MACADDRBASE=0x08000020
ALTTFSDEVTBLBASE=0x08000040

include	$(TOPDIR)/make/common.make

# Build each variable from a list of individual filenames...
#
LOCSSRC		= 
CPUSSRC		= vectors_arm.S
LOCCSRC		= cpuio.c etherdev.c 
COMCSRC		= arp.c cast.c cache.c chario.c cmdtbl.c \
			  docmd.c dhcp_00.c dhcpboot.c dns.c edit.c env.c ethernet.c \
			  flash.c gdb.c icmp.c if.c ledit_vt100.c monprof.c \
			  fbi.c font.c mprintf.c memcmds.c malloc.c moncom.c memtrace.c \
			  misccmds.c misc.c nand.c password.c redirect.c \
			  reg_cache.c sbrk.c sd.c \
			  start.c struct.c symtbl.c syslog.c tcpstuff.c tfs.c tfsapi.c \
			  tfsclean1.c tfscli.c tfsloader.c tfslog.c tftp.c timestuff.c \
			  tsi.c xmodem.c
CPUCSRC		= except_arm.c misc_arm.c strace_arm.c 
IODEVSRC	= uart16550.c
FLASHSRC	=


include $(TOPDIR)/make/objects.make

OBJS	= 	$(LOCSOBJ) $(CPUSOBJ) $(LOCCOBJ) $(CPUCOBJ) $(COMCOBJ) \
			$(FLASHOBJ) $(IODEVOBJ)

#########################################################################
#
# Targets...

# boot:
# The default target is "boot", a shortcut to $(BUILDDIR)/boot.$(FILETYPE).
# This builds the bootflash image that can be used by 'newmon' to 
# load a new version onto an already running system.
#
boot:	$(BUILDDIR)/boot.$(FILETYPE)
	$(CC) $(ASMFLAGS) -D \
		BIN_SIZE=$(shell wc --bytes build_$(PLATFORM)/boot.bin | cut -f 1 -d ' ') \
		-o gp_header.o gp_header.S
	${CC} ${ASMFLAGS} -o config_header.o config_header.S
	$(OBJCOPY) -O binary gp_header.o build_$(PLATFORM)/gp_header.bin
	${OBJCOPY} -O binary config_header.o build_${PLATFORM}/config_header.bin
	@cat build_$(PLATFORM)/gp_header.bin build_$(PLATFORM)/boot.bin > build_$(PLATFORM)/MLO
	@cat build_$(PLATFORM)/config_header.bin build_$(PLATFORM)/gp_header.bin \
		build_$(PLATFORM)/boot.bin > build_$(PLATFORM)/rawboot.bin
	@echo Boot version of uMon built under $(BUILDDIR) ...
	@ls $(BUILDDIR)/boot*
	@echo Boot version of uMon prepended with a GP header built under $(BUILDDIR) ...
	@ls $(BUILDDIR)/MLO
	@echo Boot version of uMon prepended with a Configuration header and a GP header built
	@echo under $(BUILDDIR) ...
	@ls $(BUILDDIR)/rawboot.bin

# ramtst:
# A shortcut to $(BUILDDIR)/ramtst.$(FILETYPE).  This is a version of uMon
# that resides strictly in RAM and is used for two main purposes:
# 1. To test new monitor features prior to burning the boot flash.
# 2. To be downloaded into the RAM space of a board that has no programmed
#    boot flash.  This provides a running monitor that can then accept
#    an incoming bootflash image using 'newmon'.
#
ramtst:	$(BUILDDIR)/ramtst.$(FILETYPE)
	@echo Ram-resident test version of uMon built under $(BUILDDIR) ...
	@ls $(BUILDDIR)/ramtst*

$(BUILDDIR)/boot.$(FILETYPE): $(BUILDDIR) $(OBJS) libz.a \
		libg.a Makefile
	$(CC) $(ASMFLAGS) -o rom_reset.o rom_reset.S
	$(MAKE_MONBUILT)
	sed -e s/ROMBASE/$(BOOTROMBASE)/ -e s/ROMLEN/$(BOOTROMLEN)/ \
		-e s/DRAMBASE/$(BOOTRAMBASE)/ -e s/DRAMLEN/$(BOOTRAMLEN)/ -e s/ATAGSIZE/$(ATAGSIZE)/ \
		$(PLATFORM)_$(@F:.$(FILETYPE)=.ldt) > $(PLATFORM)_$(@F:.$(FILETYPE)=.ld)
	$(LINK) -e coldstart $(OBJS) monbuilt.o libz.a \
		libg.a $(LIBABIDIR) $(LIBGCC)
	$(MAKE_BINARY)
	$(MAKE_GNUSYMS)

$(BUILDDIR)/ramtst.$(FILETYPE): $(BUILDDIR) $(OBJS) libz.a \
		libg.a Makefile
	$(CC) $(ASMFLAGS) -o ram_reset.o ram_reset.S
	$(MAKE_MONBUILT)
	sed -e s/RAMTSTROMBASE/$(RAMTSTROMBASE)/ \
		-e s/RAMTSTROMLEN/$(RAMTSTROMLEN)/ -e s/ATAGSIZE/$(ATAGSIZE)/ \
		-e s/MACADDRBASE/$(MACADDRBASE)/ -e s/ALTTFSDEVTBLBASE/$(ALTTFSDEVTBLBASE)/ \
		$(PLATFORM)_$(@F:.$(FILETYPE)=.ldt) > $(PLATFORM)_$(@F:.$(FILETYPE)=.ld)

	$(LINK) -e coldstart $(OBJS) monbuilt.o libz.a libg.a $(LIBGCC)
	$(MAKE_BINARY)
	$(MAKE_GNUSYMS)

include $(TOPDIR)/make/rules.make


#########################################################################
#
# Miscellaneous...
cscope_local:
	ls rom_reset.S ram_reset.S >cscope.files
	ls $(FLASHDIR)/s29gl512n_16x1.c >>cscope.files
	ls $(FLASHDIR)/s29gl512n_16x1.h >>cscope.files

help_local:

varcheck: