Add BSP for multiprocessing on Patmos hardware

c/src/lib/libbsp/patmos/acinclude.m4

@@ -6,6 +6,8 @@ AC_DEFUN([RTEMS_CHECK_BSPDIR],
     AC_CONFIG_SUBDIRS([pasim]);;
   tcrest )
     AC_CONFIG_SUBDIRS([tcrest]);;
+  tcrestmp )
+    AC_CONFIG_SUBDIRS([tcrestmp]);;
   *)
     AC_MSG_ERROR([Invalid BSP]);;
   esac

c/src/lib/libbsp/patmos/tcrestmp/Makefile.am

@@ -0,0 +1,56 @@
+##
+## $Id: Makefile.am,v 1.00 2014/03/27 15:17:12 Andre Rocha $
+##
+
+ACLOCAL_AMFLAGS = -I ../../../../aclocal
+
+include $(top_srcdir)/../../../../automake/compile.am
+
+include_bspdir = $(includedir)/bsp
+
+dist_project_lib_DATA = bsp_specs
+
+include_HEADERS = include/bsp.h
+include_HEADERS += ../../shared/include/tm27.h
+
+nodist_include_HEADERS = include/bspopts.h
+nodist_include_bsp_HEADERS = ../../shared/include/bootcard.h
+DISTCLEANFILES = include/bspopts.h
+
+noinst_PROGRAMS =
+
+include_HEADERS += include/tcrestmp.h
+include_HEADERS += ../../shared/include/coverhd.h
+include_HEADERS += ../shared/noc/noc.h
+
+noinst_LIBRARIES = libbspstart.a
+libbspstart_a_SOURCES = ../../patmos/shared/startup/start.S
+project_lib_DATA = start.$(OBJEXT)
+
+dist_project_lib_DATA += startup/linkcmds
+dist_project_lib_DATA += ../shared/libsyms.ll
+
+noinst_LIBRARIES += libbsp.a
+libbsp_a_SOURCES =
+
+# startup
+libbsp_a_SOURCES += ../../shared/bspclean.c ../../shared/bsplibc.c \
+    ../../shared/bsppost.c ../../shared/bootcard.c ../shared/startup/bspstart.c \
+    ../../shared/bsppretaskinghook.c ../../shared/bsppredriverhook.c \
+    ../shared/bspgetworkarea.c ../../shared/sbrk.c
+# console
+libbsp_a_SOURCES += ../shared/console/console.c
+# debugio
+libbsp_a_SOURCES += ../shared/console/debugputs.c
+# clock
+libbsp_a_SOURCES += ../shared/clock/ckinit.c ../../../shared/clockdrv_shell.h
+# noc
+libbsp_a_SOURCES += ../shared/noc/noc.c
+# timer
+libbsp_a_SOURCES += ../shared/timer/timer.c
+
+libbsp_a_LIBADD = ../../../libcpu/@RTEMS_CPU@/cache.rel \
+    ../../../libcpu/@RTEMS_CPU@/exceptions.rel
+
+include $(srcdir)/preinstall.am
+include $(top_srcdir)/../../../../automake/local.am

c/src/lib/libbsp/patmos/tcrestmp/bsp_specs

@@ -0,0 +1,13 @@
+%rename endfile old_endfile
+%rename startfile old_startfile
+%rename link old_link
+
+*endfile:
+crtend.o%s crtn.o%s
+
+*startfile:
+%{!qrtems: %(old_startfile)} \
+%{!nostdlib: %{qrtems: start.o%s crti.o%s crtbegin.o%s}}
+
+*link:
+%{!qrtems: %(old_link)} %{qrtems: -dc -dp -N}

c/src/lib/libbsp/patmos/tcrestmp/configure.ac

@@ -0,0 +1,22 @@
+## Process this file with autoconf to produce a configure script.
+##
+## $Id: configure.ac,v 1.00 2013/06/14 15:17:12 Andre Rocha $
+
+AC_PREREQ([2.68])
+AC_INIT([rtems-c-src-lib-libbsp-patmos-tcrestmp],[_RTEMS_VERSION],[http://www.rtems.org/bugzilla])
+AC_CONFIG_SRCDIR([bsp_specs])
+RTEMS_TOP(../../../../../..)
+
+RTEMS_CANONICAL_TARGET_CPU
+AM_INIT_AUTOMAKE([no-define nostdinc foreign 1.11.1])
+RTEMS_BSP_CONFIGURE
+
+RTEMS_PROG_CC_FOR_TARGET
+RTEMS_CANONICALIZE_TOOLS
+RTEMS_PROG_CCAS
+
+RTEMS_BSP_CLEANUP_OPTIONS(0, 0)
+
+# Explicitly list all Makefiles here
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT

c/src/lib/libbsp/patmos/tcrestmp/include/bsp.h

@@ -0,0 +1,76 @@
+/*  bsp.h
+ *
+ *  This include file contains all Patmos hardware (multi-core) definitions.
+ *
+ *  Project: T-CREST - Time-Predictable Multi-Core Architecture for Embedded Systems
+ *
+ *  Copyright (C) GMVIS Skysoft S.A., 2014
+ *  @author Andre Rocha
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ * 
+ */
+
+#ifndef _BSP_H
+#define _BSP_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Patmos CPU variant: TCRESTMP */
+#define TCRESTMP 3
+
+/* Flag for hard_reset */
+#define PATMOS_MULTICORE
+
+/* Constants */
+
+/*
+ *  Information placed in the linkcmds file.
+ */
+
+#define RAM_START 0x400
+#define RAM_SIZE 1M
+#define RAM_END RAM_START + RAM_SIZE
+
+#define PROM_START 0x00000000
+#define PROM_SIZE 0K
+#define PROM_END PROM_START + PROM_SIZE
+
+#ifndef ASM
+
+#include <bspopts.h>
+#include <rtems.h>
+#include <rtems/clockdrv.h>
+#include <rtems/console.h>
+
+extern int   CLOCK_SPEED;
+
+extern int   end;        /* last address in the program */
+
+/* miscellaneous stuff assumed to exist */
+
+rtems_isr_entry set_vector(                     /* returns old vector */
+    rtems_isr_entry     handler,                /* isr routine        */
+    rtems_vector_number vector,                 /* vector number      */
+    int                 type                    /* RTEMS or RAW intr  */
+);
+
+void BSP_fatal_return( void );
+
+void bsp_spurious_initialize( void );
+
+#endif /* !ASM */
+
+#ifdef __cplusplus
+}
+#endif
+
+#include <tcrestmp.h>
+
+#endif
+
+

c/src/lib/libbsp/patmos/tcrestmp/include/tcrestmp.h

@@ -0,0 +1,225 @@
+/*  tcrestmp.h
+ *
+ *  TCRESTMP BSP data types and macros.
+ *
+ *  Project: T-CREST - Time-Predictable Multi-Core Architecture for Embedded Systems
+ *
+ *  Copyright (C) GMVIS Skysoft S.A., 2014
+ *  @author Andre Rocha
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ * 
+ */
+
+#ifndef _INCLUDE_TCRESTMP_h
+#define _INCLUDE_TCRESTMP_h
+
+#include <rtems/score/patmos.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * TODO: replace these by linker symbols
+ */
+
+#define _shadow_stack_base 0x00100000
+#define _stack_cache_base 0x000f0000
+
+#ifndef ASM
+
+#define _IODEV __attribute__((address_space(1)))
+
+typedef _IODEV unsigned int volatile * const _iodev_ptr_t;
+
+/*
+ * Attribute for pointers into the scratchpad memory. Use as
+ *
+ * _SPM int *p = (_SPM int *) 0x1234;
+ *
+ */
+#define _SPM __attribute__((address_space(1)))
+
+/*
+ * Attribute for pointers into main memory using cache bypass. Use as
+ *
+ * _UNCACHED int *p = (_UNCACHED int *) &mydata;
+ */
+#define _UNCACHED __attribute__((address_space(3)))
+
+typedef volatile int (*entrypoint_t)(void);
+
+/*
+ * CPU Info Management
+ */
+
+extern char _cpuinfo_base; /* linker symbol giving the address of the CPU info */
+
+/* Address to access the CPU id */
+#define __PATMOS_CPU_ID_ADDR (&_cpuinfo_base + 0x00)
+
+/* Address to access the CPU frequency */
+#define __PATMOS_CPU_FREQ_ADDR (&_cpuinfo_base + 0x04)
+
+/* Macro to read the CPU id */
+#define __PATMOS_CPU_RD_ID(res) res = *((_iodev_ptr_t)__PATMOS_CPU_ID_ADDR);
+
+/* Macro to read the CPU frequency */
+#define __PATMOS_CPU_RD_FREQ(res) res = *((_iodev_ptr_t)__PATMOS_CPU_FREQ_ADDR);
+
+/*
+ * End of CPU Info Management
+ */
+
+
+/*
+ * UART Management
+ */
+
+extern char _iomap_base; /* linker symbol giving the base address of the IO map address range */
+
+extern char _uart_base; /* linker symbol giving the address of the UART */
+
+/*
+ *  The following defines the bits in the TCREST UART Status Registers.
+ */
+
+#define __PATMOS_UART_TRE 1 /* Bit mask for the transmit-ready bit (TRE) */
+#define __PATMOS_UART_DAV 2 /* Bit mask for the data-available bit (DAV) */
+#define __PATMOS_UART_PAE 4 /* Bit mask for the parity-error bit (PAE) */
+#define __PATMOS_UART_TFL 8 /* Bit mask for the transmit-flush bit (TFL) */
+
+/*
+ * Address to access the status register of the UART coming with Patmos
+ */
+#define __PATMOS_UART_STATUS_ADDR (&_uart_base + 0x00)
+
+/*
+ * Address to access the data register of the UART coming with Patmos
+ */
+#define __PATMOS_UART_DATA_ADDR (&_uart_base + 0x04)
+
+
+/*
+ *  Macros to handle read and write to the UART's status, control and data registers 
+ */
+ 
+/* Macro to read the UART's status register */
+#define __PATMOS_UART_STATUS(res) res = *((_iodev_ptr_t)__PATMOS_UART_STATUS_ADDR);
+
+/* Macro to read the UART's data register */
+#define __PATMOS_UART_RD_DATA(res) res = *((_iodev_ptr_t)__PATMOS_UART_DATA_ADDR);
+
+/* Macro to write the UART's control register */
+#define __PATMOS_UART_WR_CTRL(data) *((_iodev_ptr_t)__PATMOS_UART_STATUS_ADDR) = data;
+ 
+/* Macro to write the UART's data register */
+#define __PATMOS_UART_WR_DATA(data) *((_iodev_ptr_t)__PATMOS_UART_DATA_ADDR) = data;
+
+/*
+ * End of UART Management
+ */
+
+
+/*
+ * RTC Management
+ */
+
+extern char _timer_base; /* linker symbol giving the address of the RTC */
+
+extern uint64_t get_cpu_usecs (void);
+
+/* Address to access the cycle counter low register of the RTC */
+#define __PATMOS_RTC_CYCLE_LOW_ADDR (&_timer_base + 0x04)
+
+/* Address to access the cycle counter up register of the RTC */
+#define __PATMOS_RTC_CYCLE_UP_ADDR (&_timer_base + 0x00)
+
+/* Address to access the time in microseconds low register of the RTC */
+#define __PATMOS_RTC_TIME_LOW_ADDR (&_timer_base + 0x0C)
+
+/* Address to access the time in microseconds up register of the RTC */
+#define __PATMOS_RTC_TIME_UP_ADDR (&_timer_base + 0x08)
+
+/* Address to access the ISR address register of the RTC cycle timer */
+#define __PATMOS_RTC_ISR_ADDR (&_excunit_base + 0xc0)
+
+/* Macro to read the RTC's cycle counter low register of the RTC */
+#define __PATMOS_RTC_RD_CYCLE_LOW(res) res = *((_iodev_ptr_t)__PATMOS_RTC_CYCLE_LOW_ADDR);
+
+/* Macro to read the RTC's cycle counter up register of the RTC */
+#define __PATMOS_RTC_RD_CYCLE_UP(res) res = *((_iodev_ptr_t)__PATMOS_RTC_CYCLE_UP_ADDR);
+
+/* Macro to read the RTC's time in microseconds low register of the RTC */
+#define __PATMOS_RTC_RD_TIME_LOW(res) res = *((_iodev_ptr_t)__PATMOS_RTC_TIME_LOW_ADDR);
+
+/* Macro to read the RTC's time in microseconds up register of the RTC */
+#define __PATMOS_RTC_RD_TIME_UP(res) res = *((_iodev_ptr_t)__PATMOS_RTC_TIME_UP_ADDR);
+
+/* Macro to write the RTC's cycle counter low register */
+#define __PATMOS_RTC_WR_CYCLE_LOW(val) *((_iodev_ptr_t)__PATMOS_RTC_CYCLE_LOW_ADDR) = val;
+
+/* Macro to write the RTC's cycle counter up register */
+#define __PATMOS_RTC_WR_CYCLE_UP(val) *((_iodev_ptr_t)__PATMOS_RTC_CYCLE_UP_ADDR) = val;
+
+/* Macro to write the RTC's ISR address register */
+#define __PATMOS_RTC_WR_ISR(address) *((_iodev_ptr_t)__PATMOS_RTC_ISR_ADDR) = address;
+
+/*
+ * End of RTC Management
+ */
+
+
+/*
+ * Exception Management
+ */
+
+extern char _excunit_base; /* linker symbol giving the base address of the exception handling unit */
+
+/* The status register of the exception unit */
+#define EXC_STATUS (*((_iodev_ptr_t)(&_excunit_base+0x00)))
+
+/* The interrupt mask register */
+#define EXC_MASK   (*((_iodev_ptr_t)(&_excunit_base+0x04)))
+
+/* The pending interrupts register */
+#define EXC_PEND   (*((_iodev_ptr_t)(&_excunit_base+0x08)))
+
+/* The exception source register */
+#define EXC_SOURCE (*((_iodev_ptr_t)(&_excunit_base+0x0c)))
+
+/*
+ * End of Exception Management
+ */
+
+/*
+ * NOC Management
+ *
+ * TODO: replace these by linker symbols
+ */
+
+/* The base address for DMA entries */
+#define NOC_DMA_BASE    ((volatile int _IODEV *)0xE0000000)
+/* The base address for DMA routing information */
+#define NOC_DMA_P_BASE  ((volatile int _IODEV *)0xE1000000)
+/* The base address for the slot table */
+#define NOC_ST_BASE     ((volatile int _IODEV *)0xE2000000)
+/* The base address of the communication SPM */
+#define NOC_SPM_BASE    ((volatile int _SPM   *)0xE8000000)
+
+/*
+ * End of NOC Management
+ */
+
+#endif /* !ASM */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !_INCLUDE_TCRESTMP_h */
+/* end of include file */
+

c/src/lib/libbsp/patmos/tcrestmp/make/custom/tcrestmp.cfg

@@ -0,0 +1,29 @@
+#
+#  Config file for the TCREST PATMOS processor.
+#
+#  $Id: tcrestmp.cfg,v 1.00 2014/03/27 15:17:12 Andre Rocha $
+#
+
+include $(RTEMS_ROOT)/make/custom/default.cfg
+
+RTEMS_CPU=patmos
+RTEMS_CPU_MODEL=tcrestmp
+
+#  This contains the compiler options necessary to select the CPU model
+#  and (hopefully) optimize for it.
+CPU_CFLAGS = -msoft-float
+
+# optimize flag: typically -O2
+CFLAGS_OPTIMIZE_V = -O2 -g
+
+# debug flags: disable optimizations
+# We need the optimized register allocator here, the fast register allocator at -O0 wants to introduce spill code in naked functions.
+CFLAGS_DEBUG_V = -O0 -Xllc -optimize-regalloc
+
+# linker script
+LINKER_SCRIPT = $(PROJECT_RELEASE)/lib/linkcmds
+
+LINK_LIBS += $(PROJECT_RELEASE)/lib/start.o $(PROJECT_RELEASE)/lib/libsyms.ll -l=c -l=rtemscpu -l=rtemsbsp -nostartfiles \
+			 -Xgold --script=$(LINKER_SCRIPT) -mpatmos-disable-vliw \
+			 -mpatmos-method-cache-size=0x800 -mpatmos-preferred-subfunction-size=0 -mpatmos-stack-base=0x0f0000 \
+			 -mpatmos-shadow-stack-base=0x100000 -Xgold -n -Xgold -entry=hard_reset

c/src/lib/libbsp/patmos/tcrestmp/preinstall.am

@@ -0,0 +1,79 @@
+## Automatically generated by ampolish3 - Do not edit
+
+if AMPOLISH3
+$(srcdir)/preinstall.am: Makefile.am
+	$(AMPOLISH3) $(srcdir)/Makefile.am > $(srcdir)/preinstall.am
+endif
+
+PREINSTALL_DIRS =
+DISTCLEANFILES += $(PREINSTALL_DIRS)
+
+all-local: $(TMPINSTALL_FILES)
+
+TMPINSTALL_FILES =
+CLEANFILES = $(TMPINSTALL_FILES)
+
+all-am: $(PREINSTALL_FILES)
+
+PREINSTALL_FILES =
+CLEANFILES += $(PREINSTALL_FILES)
+
+$(PROJECT_LIB)/$(dirstamp):
+	@$(MKDIR_P) $(PROJECT_LIB)
+	@: > $(PROJECT_LIB)/$(dirstamp)
+PREINSTALL_DIRS += $(PROJECT_LIB)/$(dirstamp)
+
+$(PROJECT_INCLUDE)/$(dirstamp):
+	@$(MKDIR_P) $(PROJECT_INCLUDE)
+	@: > $(PROJECT_INCLUDE)/$(dirstamp)
+PREINSTALL_DIRS += $(PROJECT_INCLUDE)/$(dirstamp)
+
+$(PROJECT_INCLUDE)/bsp/$(dirstamp):
+	@$(MKDIR_P) $(PROJECT_INCLUDE)/bsp
+	@: > $(PROJECT_INCLUDE)/bsp/$(dirstamp)
+PREINSTALL_DIRS += $(PROJECT_INCLUDE)/bsp/$(dirstamp)
+
+$(PROJECT_LIB)/bsp_specs: bsp_specs $(PROJECT_LIB)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_LIB)/bsp_specs
+PREINSTALL_FILES += $(PROJECT_LIB)/bsp_specs
+
+$(PROJECT_INCLUDE)/bsp.h: include/bsp.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp.h
+
+$(PROJECT_INCLUDE)/tm27.h: ../../shared/include/tm27.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/tm27.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/tm27.h
+
+$(PROJECT_INCLUDE)/bspopts.h: include/bspopts.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bspopts.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bspopts.h
+
+$(PROJECT_INCLUDE)/bsp/bootcard.h: ../../shared/include/bootcard.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/bootcard.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/bootcard.h
+
+$(PROJECT_INCLUDE)/tcrestmp.h: include/tcrestmp.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/tcrestmp.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/tcrestmp.h
+
+$(PROJECT_INCLUDE)/coverhd.h: ../../shared/include/coverhd.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/coverhd.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/coverhd.h
+
+$(PROJECT_INCLUDE)/noc.h: ../shared/noc/noc.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/noc.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/noc.h
+
+$(PROJECT_LIB)/start.$(OBJEXT): start.$(OBJEXT) $(PROJECT_LIB)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_LIB)/start.$(OBJEXT)
+TMPINSTALL_FILES += $(PROJECT_LIB)/start.$(OBJEXT)
+
+$(PROJECT_LIB)/linkcmds: startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds
+PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds
+
+$(PROJECT_LIB)/libsyms.ll: ../shared/libsyms.ll $(PROJECT_LIB)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_LIB)/libsyms.ll
+PREINSTALL_FILES += $(PROJECT_LIB)/libsyms.ll
+

c/src/lib/libbsp/patmos/tcrestmp/startup/linkcmds

@@ -0,0 +1,45 @@
+# A simple linker script to put code and data into the external memory
+
+/* these are the maximum values */
+RamBase = 0x400;
+RamSize = 1M;
+
+OUTPUT_ARCH(patmos)
+
+SECTIONS
+{
+  . = SEGMENT_START(".rodata", 0x400);
+
+  .init_array : { *(SORT(.init_array.*) .init_array) }
+  
+  .fini_array : { *(SORT(.fini_array.*) .fini_array) }
+  
+  .data : {
+	data_start = . ;
+	_data_start = . ;
+	*(.data) 
+	_edata = ALIGN( 0x10 ) ;	
+  }
+  
+  .bss : {
+	bss_start = . ;
+	_bss_start = . ;
+	*(.bss)
+	*(COMMON)
+	WorkAreaBase = . ;
+	bss_end = . ;
+	_bss_end = . ;
+	__bss_end = . ;	
+  }
+
+  . = SEGMENT_START(".text", 0x80000);
+  .text : {
+	text_start = . ;
+	_text_start = . ;
+        *(.text)
+	. = ALIGN (0x10);
+  }
+
+  . = ALIGN(8);
+  _end = .; PROVIDE (end = .);
+}