#
#  Config file for a PowerPC 603e based DY-4 VMEbus Single Board Computer.
#  This BSP should work with the following models:
#
#     + SVME-171/DMV-171
#     + SVME-176/DMV-176
#
#  $Id$
#

include $(RTEMS_ROOT)/make/custom/default.cfg

RTEMS_CPU=powerpc
RTEMS_CPU_MODEL=ppc603e

# This is the actual bsp directory used during the build process.
RTEMS_BSP_FAMILY=dmv177

#  This section makes the target dependent options file.

#  PPC_VECTOR_FILE_BASE (ppc)
#     This defines the base address of the exception table.
#     NOTE: Vectors are actually at 0xFFF00000 but file starts at offset 0x0100
#
#  PPC_USE_SPRG (RTEMS PowerPC port)
#     If defined, then the PowerPC specific code in RTEMS will use some
#     of the special purpose registers to slightly optimize interrupt
#     response time.  The use of these registers can conflict with
#     other tools like debuggers.
#
#  PPC_USE_DATA_CACHE (RTEMS PowerPC port/BSP)
#     If defined, then the PowerPC specific code in RTEMS will use
#     data cache instructions to optimize the context switch code.
#     This code can conflict with debuggers or emulators.  It is known
#     to break the Corelis PowerPC emulator with at least some combinations
#     of PowerPC 603e revisions and emulator versions.
#     The BSP actually contains the call that enables this.
#
#  PPC_USE_INSTRUCTION_CACHE (RTEMS PowerPC port/BSP)
#     If defined, then the PowerPC specific code in RTEMS will use
#     data cache instructions to optimize the context switch code.
#     This code can conflict with debuggers or emulators. 
#     The BSP actually contains the call that enables this.

define make-target-options
	@echo "#define PPC_VECTOR_FILE_BASE 0x0100"                >>$@
	@echo "#define PPC_USE_SPRG 0"                             >>$@
	@echo "#define PPC_USE_DATA_CACHE 0"                       >>$@
	@echo "#define PPC_USE_INSTRUCTION_CACHE 1"                >>$@
endef

#  This contains the compiler options necessary to select the CPU model
#  and (hopefully) optimize for it. 
#
CPU_CFLAGS = -mcpu=603

# optimize flag: typically -0, could use -O4 or -fast
# -O4 is ok for RTEMS
# NOTE: some level of -O may be actually required by inline assembler
CFLAGS_OPTIMIZE_V=-O4 -fno-keep-inline-functions

# The following is a ld command file which works without using the
# -specs system in gcc 2.8.  IT HAS NEVER BEEN TESTED WITH THIS BSP!!!
#       $(LD) $(XLDFLAGS) -T $(LINKCMDS) \
#         -o $@ -u atexit -u __vectors -u download_entry $(LINK_FILES)
#       $(LD) $(XLDFLAGS) -Ttext 0x20000 \
#         -o $@ -u atexit -u __vectors -u download_entry $(LINK_FILES)

#       $(CC) -mmvme -mrtems -nostartfiles -mcpu=603 \
#           -o $(basename $@).exe -L $(PROJECT_RELEASE)/lib \
#            $(START_FILE) $(LINK_OBJS) \
#            $(LD_LIBS) \
#           -Wl,-\( -Wl,-lc -Wl,-lrtemsall -Wl,-lgcc -Wl,-\)
define make-exe
	$(LINK.c) $(AM_CFLAGS) $(AM_LDFLAGS) \
	    -o $(basename $@).nxe $(LINK_OBJS) $(LINK_LIBS)
	$(OBJCOPY) -O srec $(basename $@).nxe $(basename $@).i
	sed -e 's/.$$//' -e '/^S0/d' $(basename $@).i | \
	    $(PACKHEX) > $(basename $@).exe
	$(NM) -g -n $(basename $@).nxe > $(basename $@).num
	$(SIZE) $(basename $@).nxe
	$(STRIP) $(basename $@).nxe
endef

# Miscellaneous additions go here