#
#  Config file for a Radstone Technology Plc. PowerPC 60x based VME board
#
#  $Id: ppcn_60x.cfg
#

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

RTEMS_CPU=powerpc
RTEMS_CPU_MODEL=mpc750

# This is the actual bsp directory used during the build process.
RTEMS_BSP_FAMILY=mcp750

#  This section makes the target dependent options file.

#  NDEBUG (C library)
#     if defined asserts do not generate code.  This is commonly used
#     as a command line option.
#
#  RTEMS_TEST_NO_PAUSE (RTEMS tests)
#     do not pause between screens of output in the rtems tests
#
#  RTEMS_DEBUG (RTEMS)
#     If defined, debug checks in RTEMS and support library code are enabled.
#
#  PPCN_60X_USE_DINK           (ppcn_60x_bsp)
#  PPCN_60X_USE_NONE          (ppcn_60x_bsp)
#     The Score603e board can be configured with 3 ROM monitors.  Only two
#     are appropriate for use with RTEMS.  Set exactly one of these to "1"
#     to indicate which ROM monitor is on the board you are using.
#
#  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_ABI (ppc)
#     This defines the calling convention (Application Binary Interface)
#     used in this configuration.  EABI is the only one supported.
#
#  PPC_ASM (ppc)
#     This defines the assembly language format used in this configuration.
#     ELF is the only one supported.
#
#  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)
#     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.
#

define make-target-options
	@echo "/* #define NDEBUG 1 */ "                        >>$@
	@echo "#define RTEMS_TEST_NO_PAUSE 1"                  >>$@
	@echo "#define STACK_CHECKER_ON  1"                    >>$@
	@echo "#define STACK_CHECKER_REPORT_USAGE  1"          >>$@
	@echo "/* #define RTEMS_DEBUG  1 */"                   >>$@
	@echo "#define PPCN_60X_USE_DINK 0"                   >>$@
	@echo "#define PPCN_60X_USE_NONE 1"                   >>$@
	@echo "#define PPC_USE_DATA_CACHE 1"                   >>$@
	@echo "#define PPC_VECTOR_FILE_BASE 0x0100"            >>$@
	@echo "#define PPC_ABI PPC_ABI_EABI"                   >>$@
	@echo "#define PPC_ASM PPC_ASM_ELF"                    >>$@
	@echo "#define PPC_USE_SPRG  1"                        >>$@
endef

#  This contains the compiler options necessary to select the CPU model
#  and (hopefully) optimize for it. 
#
# NOTE : cheking egcc 1.1.1 source code shows that the last know processor 
# is the 604 model and that this is the default generation option.
#
# CPU_CFLAGS = -mcpu=750

# optimize flag: typically -0, could use -O4 or -fast
# -O4 is ok for RTEMS
# NOTE2: some level of -O may be actually required by inline assembler (at least
# -O2 so far.
# NOTE2 Apparently nobody really knows the status or r2 and r13.
# As far as I know, small data are pointer impose a very specific compliation
# model => not used.
# Currently the sdata2 and sbss2 sections are empty => r2 is not used...
CFLAGS_OPTIMIZE_V=-O2 -fno-keep-inline-functions -fvolatile-global -fvolatile -mstrict-align  -mcpu=750
#CFLAGS_OPTIMIZE_V=-O4 -fno-keep-inline-functions -fvolatile-global -fvolatile -mstrict-align -mcpu=750

# 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
	$(CC) $(CFLAGS) -o $(basename $@).exe $(LINK_OBJS)
	$(NM) -g -n $(basename $@).exe > $(basename $@).num
	$(SIZE) $(basename $@).exe
	$(CP) $(basename $@).exe $(PROJECT_ROOT)/c/src/lib/libbsp/powerpc/mcp750/bootloader/$(ARCH); \
	cd $(PROJECT_ROOT)/c/src/lib/libbsp/powerpc/mcp750/bootloader; \
	make bootloader BINARY_LOADED=$(basename $@).exe; \
	COMPLETE_FILE_NAME=$(basename $@).exe ;\
	echo $${COMPLETE_FILE_NAME} ;\
	FILE_NAME=`basename $${COMPLETE_FILE_NAME}` ;\
	echo $${FILE_NAME} ;\
	$(CP) bootloader $(PROJECT_ROOT)/$(RTEMS_BSP)/bin/$${FILE_NAME}
endef

# Miscellaneous additions go here

# No start file
START_BASE=

# Let the HWAPI know which set of drivers to build
DRIVER_ARCHITECTURE=vmebus