# # Config file for a PowerPC MPC821- or MPC860-based MBX card # # This file is derived from: # # Config file for a PowerPC 403 based helas403 card # Config file for MPC860 based Ethernet Comm Board # include $(RTEMS_ROOT)/make/custom/default.cfg RTEMS_CPU=powerpc RTEMS_CPU_MODEL=mpc8xx # This is the actual bsp directory used during the build process. RTEMS_BSP_FAMILY=mbx8xx # The value assigned to RTEMS_CPU, RTEMS_CPU_MODEL and RTEMS_BSP get # #defined in targopts.h. Source code can switch on these values with #ifdef # to select what code to compile for a specific CPU family member and specific # board. The RTEMS_CPU_MODEL is also used as the name of the libcpu directory, # while the RTEMS_BSP_FAMILY is used as the name of the libbsp directory. # For the MBX860 and MBX821, the boards and processors are sufficiently # similar that the ports are unified and use RTEMS_CPU_MODEL=mpc8xx and # RTEMS_BSP_FAMILY=mbx8xx. Because there are minor differences in the CPUs # and the boards, it is necessary to specify them fully during the build. # Do a "make RTEMS_BSP= " See below for a list of valid # values for . ifeq ($(findstring mbx821,$(RTEMS_MBX_MODEL)),mbx821) CPU_TYPE=821 else ifeq ($(findstring mbx860,$(RTEMS_MBX_MODEL)),mbx860) CPU_TYPE=860 else RTEMS_BSP = mbx860_002 RTEMS_MBX_MODEL = mbx860_002 TARGET_ARCH=o-mbx860_002 CPU_TYPE=860 endif # mbx860 endif # mbx821 # This section makes the target dependent options file. # # Note that RTEMS_BSP matches the RTEMS_MBX_MODEL. Its value must be # defined in targopts.h, so the few places that require different code # for different MBX models can be distinguished. The value of # RTEMS_BSP is already defined in targopts.h and is one of: # mbx860_001 mbx821_001 # mbx860_002 mbx821_002 # mbx860_003 mbx821_003 # mbx860_004 mbx821_004 # mbx860_005 mbx821_005 # mbx860_001b mbx821_001b # mbx860_002b mbx821_002b # mbx860_003b mbx821_003b # mbx860_004b mbx821_004b # mbx860_005b mbx821_005b # mbx860_006b mbx821_006b # The specific CPU model is defined, so the few places that require # different code for the MPC860 and MPC821 can be distinguished. # Either mpc860 or mpc821 is defined. # # MBX8xx-specific options: # # CONSOLE_MINOR (BSP--console driver) # Must be defined to be one of SMC1_MINOR, SMC2_MINOR, SCC2_MINOR, # SCC3_MINOR, or SCC4_MINOR. Determines which device will be registered # as /dev/console. # # UARTS_USE_INTERRUPTS (BSP--console driver) # Define if you want interrupt-driven I/O instead of polling. Superceeded # by EPPCBUG_SMC1 on SMC1. # # EPPCBUG_SMC1 (BSP--console driver) # If defined, the I/O through the SCM1 is done through the EPPCBug firmware. # Because of limitations in revision 1.1 of the firmware, EPPCBug must be # configured to use SMC1 as its console. If not defined, I/O through SMC1 # is done through a RTEMS device driver. # # EPPCBUG_VECTORS (BSP--RTEMS) # If defined, the most vectors branch to EPPCBug, except the following: # 0x500 (external interrupt), 0x900 (decrementer). # # INSTRUCTION_CACHE_ENABLE (BSP--RTEMS) # If defined, the instruction cache will be enabled after address translation # is turned on. # # DATA_CACHE_ENABLE (BSP--RTEMS) # If defined, the data cache will be enabled after address translation # is turned on. # # PowerPC-specific options: # # PPC_USE_SPRG (RTEMS PowerPC port) # If defined (=1), 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. This should be 0 when using EPPCBug # because its uses most SPRGs (don't believe the documentation!). # # 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. # # RTEMS generic options: # # 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) # If defined, do not pause between screens of output in the rtems tests. # # STACK_CHECKER_ON (RTEMS support code) # If defined, stack bounds checking is enabled. # # STACK_CHECKER_REPORT_USAGE (RTEMS support code) # If this and STACK_CHECKER_ON are defined, then a report on stack usage # per task is printed when the program exits. # define make-target-options @echo "#ifdef mpc$(CPU_TYPE)" >>$@ @echo "#undef mpc$(CPU_TYPE)" >>$@ @echo "#endif" >>$@ @echo "#define mpc$(CPU_TYPE) 1" >>$@ @echo >>$@ @echo "#define CONSOLE_MINOR SMC2_MINOR" >>$@ @echo "#define UARTS_USE_INTERRUPTS 1" >>$@ @echo "#define EPPCBUG_SMC1 1" >>$@ @echo "#define EPPCBUG_VECTORS 1" >>$@ @echo "#define INSTRUCTION_CACHE_ENABLE 1" >>$@ @echo "#define DATA_CACHE_ENABLE 1" >>$@ @echo >>$@ @echo "#define PPC_VECTOR_FILE_BASE 0x0000" >>$@ @echo "#define PPC_USE_SPRG 0" >>$@ @echo "/* #define PPC_USE_DATA_CACHE 1" */ >>$@ @echo >>$@ @echo "/* #define NDEBUG 1 */ " >>$@ @echo "#define RTEMS_TEST_NO_PAUSE 1" >>$@ @echo "/* #define STACK_CHECKER_ON 1 */" >>$@ @echo "/* #define STACK_CHECKER_REPORT_USAGE 1 */" >>$@ endef # This contains the compiler options necessary to select the CPU model # and (hopefully) optimize for it. # CPU_CFLAGS = -mcpu=$(CPU_TYPE) CFLAGS_DEBUG_V += -ggdb CXXFLAGS_DEBUG_V += -ggdb # optimize flag: typically -O, could use -O4 or -fast # -O4 is ok for RTEMS # NOTE: some level of -O may be actually required by inline assembler # CFLAGS_OPTIMIZE_V=-O4 -fno-keep-inline-functions CFLAGS_OPTIMIZE_V=-O4 -fno-keep-inline-functions CXXFLAGS_OPTIMIZE_V=-O4 # The following are definitions of make-exe which will work using ld as # is currently required. It is expected that as of gcc 2.8, the end user # will be able to override parts of the compilers specs and link using gcc. ifeq ($(RTEMS_USE_GCC272),yes) # The --defsym arguments define arguments which are required by the linkcmds # file which is designed for gcc 2.8 define make-exe $(LD) $(XLDFLAGS) -T $(LINKCMDS) \ --defsym __fini=0 --defsym __init=0 \ -o $@ -u atexit -u __vectors -u start \ $(START_FILE) $(LINK_OBJS) --start-group $(LINK_LIBS) --end-group $(NM) -g -n $@ > $(basename $@).num $(STRIP) -o $(basename $@).elf $@ $(SIZE) $@ endef else define make-exe $(LINK.c) $(AM_CFLAGS) $(AM_LDFLAGS) $(MBX8xx_LDFLAGS) \ -o $(basename $@).exe $(LINK_OBJS) $(LINK_LIBS) $(NM) -g -n $@ > $(basename $@).nm $(STRIP) -o $(basename $@) $@ $(SIZE) $@ endef endif # Miscellaneous additions go here # Override default start file START_BASE=