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authorJoel Sherrill <joel.sherrill@OARcorp.com>2000-06-12 20:06:59 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2000-06-12 20:06:59 +0000
commit41ab696625ec33c00b1788f200bc6e25edf30c8d (patch)
treef49cb1f9f8e7c0e454eeac250f7107bb0c6e2919 /make
parent8ef38186faea3d9b5e6f0f1242f668cb7e7a3d52 (diff)
downloadrtems-41ab696625ec33c00b1788f200bc6e25edf30c8d.tar.bz2
Patch from John Cotton <john.cotton@nrc.ca>, Charles-Antoine Gauthier
<charles.gauthier@iit.nrc.ca>, and Darlene A. Stewart <Darlene.Stewart@nrc.ca> to add support for a number of very significant things: + BSPs for many variations on the Motorola MBX8xx board series + Cache Manager including initial support for m68040 and PowerPC + Rework of mpc8xx libcpu code so all mpc8xx CPUs now use same code base. + Rework of eth_comm BSP to utiltize above. John reports this works on the 821 and 860
Diffstat (limited to 'make')
-rw-r--r--make/custom/mbx821_001.cfg12
-rw-r--r--make/custom/mbx860_002.cfg12
-rw-r--r--make/custom/mbx8xx.cfg196
3 files changed, 220 insertions, 0 deletions
diff --git a/make/custom/mbx821_001.cfg b/make/custom/mbx821_001.cfg
new file mode 100644
index 0000000000..8f8a3327f6
--- /dev/null
+++ b/make/custom/mbx821_001.cfg
@@ -0,0 +1,12 @@
+#
+# Config file for a PowerPC MPC860-based MBX821-001 card.
+#
+
+#
+# All MBX8xx configurations share the same base file, only a few
+# parameters differ.
+#
+
+RTEMS_MBX_MODEL=mbx821_001
+
+include $(RTEMS_ROOT)/make/custom/mbx8xx.cfg
diff --git a/make/custom/mbx860_002.cfg b/make/custom/mbx860_002.cfg
new file mode 100644
index 0000000000..0558456004
--- /dev/null
+++ b/make/custom/mbx860_002.cfg
@@ -0,0 +1,12 @@
+#
+# Config file for a PowerPC MPC860-based MBX860-002 card.
+#
+
+#
+# All MBX8xx configurations share the same base file, only a few
+# parameters differ.
+#
+
+RTEMS_MBX_MODEL=mbx860_002
+
+include $(RTEMS_ROOT)/make/custom/mbx8xx.cfg
diff --git a/make/custom/mbx8xx.cfg b/make/custom/mbx8xx.cfg
new file mode 100644
index 0000000000..f868c2fb52
--- /dev/null
+++ b/make/custom/mbx8xx.cfg
@@ -0,0 +1,196 @@
+#
+# 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 $(RTEMS_ROOT)/make/custom/default.cfg
+
+RTEMS_CPU=powerpc
+RTEMS_CPU_MODEL=mpc8xx
+
+# This is the actual bsp directory used during the build process.
+RTEMS_BSP_FAMILY=mbx8xx
+
+# The value assigned to RTEMS_CPU, RTEMS_CPU_MODEL and RTEMS_BSP get
+# #defined in targopts.h. Source code can switch on these values with #ifdef
+# to select what code to compile for a specific CPU family member and specific
+# board. The RTEMS_CPU_MODEL is also used as the name of the libcpu directory,
+# while the RTEMS_BSP_FAMILY is used as the name of the libbsp directory.
+# For the MBX860 and MBX821, the boards and processors are sufficiently
+# similar that the ports are unified and use RTEMS_CPU_MODEL=mpc8xx and
+# RTEMS_BSP_FAMILY=mbx8xx. Because there are minor differences in the CPUs
+# and the boards, it is necessary to specify them fully during the build.
+# Do a "make RTEMS_BSP=<your_board> <target>" See below for a list of valid
+# values for <your_board>.
+
+ifeq ($(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.
+#
+# RTEMS_DEBUG (RTEMS)
+# If defined, debug checks in RTEMS and support library code are enabled.
+
+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 */" >>$@
+ @echo "/* #define STACK_CHECKER_REPORT_USAGE 1 */" >>$@
+ @echo "/* #define RTEMS_DEBUG 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
+ $(CC) $(CFLAGS) $(CPU_CFLAGS) $(XLDFLAGS) -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=
+