Subversion Repositories openrisc_2011-10-31

#

#  Config file for Motorola MCP750 -- a MPC750 CompactPCI board

#

#  $Id: mcp750.cfg,v 1.2 2001-09-27 12:02:52 chris Exp $

#

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

RTEMS_CPU=powerpc

RTEMS_CPU_MODEL=mpc750

RTEMS_PPC_EXCEPTION_PROCESSING_MODEL=new

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

RTEMS_BSP_FAMILY=motorola_powerpc

#  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.

#

#  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)

#     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 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_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=-O4 -mmultiple -mstring -mstrict-align

#CFLAGS_OPTIMIZE_V=-O4 -fno-keep-inline-functions -fvolatile-global -fvolatile -mstrict-align -mcpu=750

# debug flags: typically none, but at least -O1 is required due to this

# BSP using inlined code

CFLAGS_DEBUG_V = -O1 -mmultiple -mstring -mstrict-align

# 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 $@ $(LINK_OBJS) $(LINK_LIBS)

        $(NM) -g -n $@ > $(basename $@).num

        $(SIZE) $@

        test -d ${PROJECT_RELEASE}/bin || mkdir ${PROJECT_RELEASE}/bin

        $(CP) $@ $(PROJECT_ROOT)/powerpc-rtems/c/mcp750/lib/libbsp/powerpc/$(RTEMS_BSP_FAMILY)/bootloader/$(ARCH); \

        ( cd $(PROJECT_ROOT)/powerpc-rtems/c/mcp750/lib/libbsp/powerpc/$(RTEMS_BSP_FAMILY)/bootloader; \

        $(MAKE) bootloader BINARY_LOADED=$@; )

        f=`basename $@ .exe`; \

        cp $(PROJECT_ROOT)/powerpc-rtems/c/mcp750/lib/libbsp/powerpc/$(RTEMS_BSP_FAMILY)/bootloader/bootloader \

            ${PROJECT_RELEASE}/bin/$${f}$(LIB_VARIANT).exe \

        && chmod 755 \

          ${PROJECT_RELEASE}/bin/$${f}$(LIB_VARIANT).exe

endef

# Miscellaneous additions go here

# Let the HWAPI know which set of drivers to build

DRIVER_ARCHITECTURE=compactpci