From 41ab696625ec33c00b1788f200bc6e25edf30c8d Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Mon, 12 Jun 2000 20:06:59 +0000 Subject: Patch from John Cotton , Charles-Antoine Gauthier , and Darlene A. Stewart 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 --- make/custom/mbx821_001.cfg | 12 +++ make/custom/mbx860_002.cfg | 12 +++ make/custom/mbx8xx.cfg | 196 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 220 insertions(+) create mode 100644 make/custom/mbx821_001.cfg create mode 100644 make/custom/mbx860_002.cfg create mode 100644 make/custom/mbx8xx.cfg (limited to 'make') 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 $(RTEMS_ROOT)/make/custom/default.cfg + +RTEMS_CPU=powerpc +RTEMS_CPU_MODEL=mpc8xx + +# This is the actual bsp directory used during the build process. +RTEMS_BSP_FAMILY=mbx8xx + +# The value assigned to RTEMS_CPU, RTEMS_CPU_MODEL and RTEMS_BSP get +# #defined in targopts.h. Source code can switch on these values with #ifdef +# to select what code to compile for a specific CPU family member and specific +# board. The RTEMS_CPU_MODEL is also used as the name of the libcpu directory, +# while the RTEMS_BSP_FAMILY is used as the name of the libbsp directory. +# For the MBX860 and MBX821, the boards and processors are sufficiently +# similar that the ports are unified and use RTEMS_CPU_MODEL=mpc8xx and +# RTEMS_BSP_FAMILY=mbx8xx. Because there are minor differences in the CPUs +# and the boards, it is necessary to specify them fully during the build. +# Do a "make RTEMS_BSP= " See below for a list of valid +# values for . + +ifeq ($(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. +# +# 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= + -- cgit v1.2.3