Add BSP for the Patmos hardware

build-rtems.sh

@@ -14,6 +14,7 @@ rtems_src_dir=$rtems_dir/rtems-src
 rtems_build_dir=$rtems_dir/rtems-build
 rtems_install_dir=$rtems_dir/rtems-install
 rtems_examples_dir=$rtems_dir/rtems-examples
+rtems_bsp=tcrest
 
 old_target=patmos-unknown-unknown-elf
 new_target=patmos-unknown-rtems
@@ -24,6 +25,7 @@ build_emulator=false
 build_rtems_examples=false
 build_llvm_release=true
 get_rtems=true
+run_bootstrap=false
 
 function add2bashrc(){
 	echo $1 >> ~/.bashrc
@@ -57,6 +59,7 @@ for i in ${@:1}
 	;;
 	"-r" | "-R")
 		build_rtems=true
+		run_bootstrap=true
 	;;
 	"-rs" | "-RS")
 		build_rtems=true
@@ -136,6 +139,9 @@ if [[ $build_rtems == "true" ]]; then
 			exit 1
 		fi
 		git clone https://github.com/t-crest/rtems.git $rtems_src_dir		
+	fi
+
+	if [[ $run_bootstrap == "true" ]]; then
 		cd $rtems_src_dir
 		./bootstrap -p
 		./bootstrap
@@ -150,12 +156,12 @@ if [[ $build_rtems == "true" ]]; then
 	rtems_install_dir=$(pwd)	
 	
 	cd $rtems_build_dir
-	$rtems_src_dir/configure --target=patmos-unknown-rtems --enable-posix --disable-networking --disable-cxx --enable-tests --enable-rtemsbsp=pasim --prefix=$rtems_install_dir
+	$rtems_src_dir/configure --target=patmos-unknown-rtems --enable-posix --disable-networking --disable-cxx --enable-tests --enable-rtemsbsp=$rtems_bsp --prefix=$rtems_install_dir
 	make install
-	grep -Fxq "export RTEMS_MAKEFILE_PATH="$rtems_install_dir"/patmos-unknown-rtems/pasim" ~/.bashrc
+	grep -Fxq "export RTEMS_MAKEFILE_PATH="$rtems_install_dir"/patmos-unknown-rtems/"$rtems_bsp ~/.bashrc
 	if [[ $? == 1  ]]; then
-		add2bashrc "export RTEMS_MAKEFILE_PATH="$rtems_install_dir"/patmos-unknown-rtems/pasim"
+		add2bashrc "export RTEMS_MAKEFILE_PATH="$rtems_install_dir"/patmos-unknown-rtems/"$rtems_bsp
-		export RTEMS_MAKEFILE_PATH"="$rtems_install_dir"/patmos-unknown-rtems/pasim"
+		export RTEMS_MAKEFILE_PATH"="$rtems_install_dir"/patmos-unknown-rtems/"$rtems_bsp
 	fi
 	#rm -rf $pwd
 fi

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

@@ -9,9 +9,8 @@ SUBDIRS = @RTEMS_BSP_FAMILY@
 
 EXTRA_DIST =
 
-EXTRA_DIST += shared/bspclean.c
+EXTRA_DIST += shared/startup/bspstart.c
-EXTRA_DIST += shared/bspstart.c
+EXTRA_DIST += shared/startup/start.S
-EXTRA_DIST += shared/start.S
 
 include $(top_srcdir)/../../../automake/subdirs.am
 include $(top_srcdir)/../../../automake/local.am

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

@@ -4,6 +4,8 @@ AC_DEFUN([RTEMS_CHECK_BSPDIR],
   case "$1" in
   pasim )
     AC_CONFIG_SUBDIRS([pasim]);;
+  tcrest )
+    AC_CONFIG_SUBDIRS([tcrest]);;
   *)
     AC_MSG_ERROR([Invalid BSP]);;
   esac

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

@@ -1,5 +1,5 @@
 ##
-## $Id: Makefile.am,v 1.00 2013/06/14 15:17:12 André Rocha $
+## $Id: Makefile.am,v 1.00 2013/06/14 15:17:12 Andre Rocha $
 ##
 
 ACLOCAL_AMFLAGS = -I ../../../../aclocal
@@ -23,7 +23,7 @@ include_HEADERS += include/pasim.h
 include_HEADERS += ../../shared/include/coverhd.h
 
 noinst_LIBRARIES = libbspstart.a
-libbspstart_a_SOURCES = ../../patmos/shared/start.S
+libbspstart_a_SOURCES = ../../patmos/shared/startup/start.S
 project_lib_DATA = start.$(OBJEXT)
 
 dist_project_lib_DATA += startup/linkcmds
@@ -34,17 +34,17 @@ libbsp_a_SOURCES =
 
 # startup
 libbsp_a_SOURCES += ../../shared/bspclean.c ../../shared/bsplibc.c \
-    ../../shared/bsppost.c ../../shared/bootcard.c startup/bspstart.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 += console/console.c
+libbsp_a_SOURCES += ../shared/console/console.c
 # debugio
-libbsp_a_SOURCES += console/debugputs.c
+libbsp_a_SOURCES += ../shared/console/debugputs.c
 # clock
-libbsp_a_SOURCES += clock/ckinit.c ../../../shared/clockdrv_shell.h
+libbsp_a_SOURCES += ../shared/clock/ckinit.c ../../../shared/clockdrv_shell.h
 # timer
-libbsp_a_SOURCES += timer/timer.c
+libbsp_a_SOURCES += ../shared/timer/timer.c
 
 libbsp_a_LIBADD = ../../../libcpu/@RTEMS_CPU@/cache.rel \
     ../../../libcpu/@RTEMS_CPU@/exceptions.rel

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

@@ -20,14 +20,7 @@
 extern "C" {
 #endif
 
-#include <bspopts.h>
+/* Patmos CPU variant: PASIM */
-
-#include <rtems.h>
-#include <pasim.h>
-#include <rtems/clockdrv.h>
-#include <rtems/console.h>
-
-/* PATMOS CPU variant: PASIM */
 #define PASIM 1
 
 /* Constants */
@@ -44,6 +37,13 @@ extern "C" {
 #define PROM_SIZE 256M
 #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 */
@@ -60,10 +60,14 @@ void BSP_fatal_return( void );
 
 void bsp_spurious_initialize( void );
 
+#endif /* !ASM */
+
 #ifdef __cplusplus
 }
 #endif
 
+#include <pasim.h>
+
 #endif
 
 

c/src/lib/libbsp/patmos/shared/clock/ckinit.c

@@ -1,7 +1,7 @@
 /*
  *  Clock Tick Device Driver
  *
- *  This routine initializes PASIM timer 1 which used for the clock tick.
+ *  This routine initializes Patmos timer 1 which used for the clock tick.
  *
  *  The tick frequency is directly programmed to the configured number of
  *  microseconds per tick.

c/src/lib/libbsp/patmos/shared/console/console.c

@@ -1,5 +1,5 @@
 /*
- *  This file contains the TTY driver for the serial ports on the PASIM.
+ *  This file contains the TTY driver for the serial ports on Patmos.
  *
  *  This driver uses the termios pseudo driver.
  *

c/src/lib/libbsp/patmos/shared/console/debugputs.c

@@ -1,5 +1,5 @@
 /*
- *  This file contains the TTY driver for the serial ports on the PASIM.
+ *  This file contains the TTY driver for the serial ports on Patmos.
  *
  *  This driver uses the termios pseudo driver.
  *

c/src/lib/libbsp/patmos/shared/startup/start.S

@@ -6,7 +6,7 @@
  *  Project: T-CREST - Time-Predictable Multi-Core Architecture for Embedded Systems
  *
  *  Copyright (C) GMVIS Skysoft S.A., 2013
- *  @author André Rocha
+ *  @author Andre Rocha
  *
  *  The license and distribution terms for this file may be
  *  found in the file LICENSE in this distribution or at
@@ -15,7 +15,10 @@
  */
 
 #include <rtems/asm.h>
-#include <pasim.h>
+#include <bsp.h>
+
+.comm _loader_baseaddr,4,4
+.comm _loader_off,4,4
 
 .type   hard_reset, @function
 .size   hard_reset, .Ltmp0-hard_reset
@@ -27,7 +30,15 @@
 	PUBLIC(hard_reset)
 SYM(hard_reset):
 
-  and      $r0 = $r0, 0x0 /* Reset r0 to 0 */
+  /*
+   * save loader return information
+   */
+  li      $r1 = _loader_baseaddr
+  mfs     $r29 = $srb
+  swm     [$r1] = $r29
+  li      $r1 = _loader_off
+  mfs     $r29 = $sro
+  swm     [$r1] = $r29
 
   /*
    * setup stack cache and stack frame    
@@ -37,58 +48,10 @@ SYM(hard_reset):
   mts	  $s5 = $r9 /* Initialize the stack cache's top pointer */
   mts	  $s6 = $r9 /* Initialize the stack cache's spill top pointer */
 
- /*
-  *  Copy the initialized data from ROM to RAM
-  *
-  *  FROM:   _etext
-  *  TO:     _data_start
-  *  LENGTH: (__bss_start - _data_start) bytes
-  */
-  
-//  li	  $r9 = _etext /* r9 = start of initialized data in ROM */
-//  li	  $r10 = _data_start /* r10 = start of initialized data in RAM */
-//  li	  $r11 = _bss_start /* r11 = end of initialized data in RAM */
-  
-//  cmplt   $p2 = $r10, $r11         /* Is the pointer past the end of dest? */
-//  (!$p2) br      clear_bss
-//  nop
-//  nop
-//  nop
-
-//copy_data:
-//  lwc     $r12 = [ $r9 + 0 ]
-//  swc     [ $r10 + 0 ] = $r12     /* copy this word */
-//  add     $r9 = $r9, 4            /* bump the source pointer */
-//  add     $r10 = $r10, 4          /* bump the destination pointer */
-//  cmplt   $p2 = $r10, $r11         /* Is the pointer past the end of dest? */
-//  ($p2) br      copy_data
-//  nop
-//  nop
-//  nop
-
-//clear_bss:	/* clear the bss */
-//  li	  $r9 = _edata /* r9 = start of bss */
-//  li	  $r10 = _end /* r10 = end of bss */
-  
-//  cmple   $p2 = $r9, $r10
-//  (!$p2) br      call_boot
-//  nop
-//  nop
-//  nop
-  
-//zero_bss:
-//  swc     [ $r9 + 0 ] = $r0      /* zero the bss */
-//  add     $r9 = $r9, 4           /* bump the bss pointer */
-// cmple   $p2 = $r9, $r10
-//  ($p2) br      zero_bss
-//  nop
-//  nop
-  
   /*
    * invoke main function                    
    */
 
-//call_boot:
   call	  SYM(boot_card) /* invoke boot_card function */
   li	  $r3 = 0 /* pass argument argc */
   li	  $r4 = 0 /* pass argument argv */
@@ -108,8 +71,16 @@ SYM(hard_reset):
  
         PUBLIC(__exit)
 SYM(__exit):
+  li      $r1 = _loader_baseaddr
+  lwm     $r29 = [$r1]
+  nop
+  mts     $srb = $r29
+  li      $r1 = _loader_off
+  lwm     $r29 = [$r1]
+  nop
+  mts     $sro = $r29
   mov     $r1 = $r3 /* store exit code */
-  brcf $r0      /* halt */
+  ret     /* return to loader and/or halt */
   nop
   nop
   nop     

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

@@ -0,0 +1,53 @@
+##
+## $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 = $(includedir)/bsp
+
+dist_project_lib_DATA = bsp_specs
+
+include_HEADERS = include/bsp.h
+include_HEADERS += ../../shared/include/tm27.h
+
+nodist_include_HEADERS = include/bspopts.h
+nodist_include_bsp_HEADERS = ../../shared/include/bootcard.h
+DISTCLEANFILES = include/bspopts.h
+
+noinst_PROGRAMS =
+
+include_HEADERS += include/tcrest.h
+include_HEADERS += ../../shared/include/coverhd.h
+
+noinst_LIBRARIES = libbspstart.a
+libbspstart_a_SOURCES = ../../patmos/shared/startup/start.S
+project_lib_DATA = start.$(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
+# 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/tcrest/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/tcrest/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-tcrest],[_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/tcrest/include/bsp.h

@@ -0,0 +1,73 @@
+/*  bsp.h
+ *
+ *  This include file contains all PATMOS simulator 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: TCREST */
+#define TCREST 2
+
+/* Constants */
+
+/*
+ *  Information placed in the linkcmds file.
+ */
+
+#define RAM_START 0x00020000
+#define RAM_SIZE 1536K
+#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 <tcrest.h>
+
+#endif
+
+

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

@@ -0,0 +1,194 @@
+/*  tcrest.h
+ *
+ *  TCREST 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_TCREST_h
+#define _INCLUDE_TCREST_h
+
+#include <rtems/score/patmos.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * TODO: replace these by linker symbols
+ */
+
+#define _shadow_stack_base 0x00200000
+#define _stack_cache_base 0x001f0000
+
+#ifndef ASM
+
+#define _IODEV __attribute__((address_space(1)))
+
+typedef _IODEV unsigned int volatile * const _iodev_ptr_t;
+
+
+/*
+ * CPU Info Management
+ */
+
+extern char _cpuinfo_base; /* linker symbol giving the address of the CPU info */
+
+extern uint32_t get_cpu_freq_mhz(void);
+
+/* 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);
+
+extern void set_usec_timer (uint64_t time_warp);
+
+/* 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
+ */
+
+#endif /* !ASM */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !_INCLUDE_TCREST_h */
+/* end of include file */
+

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

@@ -0,0 +1,23 @@
+#
+#  Config file for the TCREST PATMOS processor.
+#
+#  $Id: tcrest.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=tcrest
+
+#  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 -Xllc -trap-func=abort_trap
+
+# 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
+
+LINK_LIBS += $(PROJECT_RELEASE)/lib/start.o $(PROJECT_RELEASE)/lib/libsyms.ll -l=c -l=rtemscpu -l=rtemsbsp -nostartfiles -Xgold -Map -Xgold map.map -Xgold --script=$(PROJECT_RELEASE)/lib/linkcmds

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

@@ -0,0 +1,75 @@
+## 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)/tcrest.h: include/tcrest.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/tcrest.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/tcrest.h
+
+$(PROJECT_INCLUDE)/coverhd.h: ../../shared/include/coverhd.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/coverhd.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/coverhd.h
+
+$(PROJECT_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/tcrest/startup/linkcmds

@@ -0,0 +1,128 @@
+/*  linkcmds
+ *
+ *  $Id$
+ */
+
+/* Default values, can be overridden */
+
+_PROM_SIZE = 0K;
+_PROM_START = 0x00000000;
+
+_RAM_SIZE = 1536K;
+_RAM_START = 0x00020000;
+
+/* these are the maximum values */
+
+RamBase = 0x00020000;
+RamSize = 1536K;
+
+MEMORY
+{
+  rom     : ORIGIN = 0x00000000, LENGTH = 0K
+  ram     : ORIGIN = 0x00020000, LENGTH = 1536K
+}
+
+OUTPUT_ARCH(patmos)
+ENTRY(hard_reset)
+__DYNAMIC  =  0;
+
+/*
+ * The memory map looks like this:
+ * +--------------------+ <- low memory
+ * | .text  	ROM		|
+ * |        _text_start |
+ * |        ctor list   | the ctor and dtor lists are for
+ * |        dtor list   | C++ support
+ * |        _etext      |
+ * +--------------------+
+ * | .data      RAM     | initialized data goes here
+ * |        _sdata      |
+ * |        _edata      |
+ * +--------------------+
+ * | .bss       RAM     |
+ * |        __bss_start | start of bss, cleared by crt0
+ * |        _end        | start of heap, used by sbrk()
+ * +--------------------+
+ * |    heap space      |
+ * |        _ENDHEAP    |
+ * |    stack space     | 
+ * |        __stack     | top of stack
+ * +--------------------+ <- high memory
+ */
+
+_RAM_END = _RAM_START + _RAM_SIZE;
+
+_PROM_END = _PROM_START + _PROM_SIZE;
+
+/*
+ *  Alternate names without leading _.
+ */
+
+PROM_START = _PROM_START;
+PROM_SIZE = _PROM_SIZE;
+PROM_END = _PROM_END;
+
+RAM_START = _RAM_START;
+RAM_SIZE = _RAM_SIZE;
+RAM_END = _RAM_END;
+
+/*
+ * stick everything in ram (of course)
+ */
+SECTIONS
+{
+   .text 0x00020000 :
+	{
+	text_start = . ;
+	_text_start = . ;
+        *(.text)
+	. = ALIGN (0x10);
+
+	/*
+	 * Special FreeBSD sysctl sections.
+	 */
+	. = ALIGN (16);
+	__start_set_sysctl_set = .;
+	*(set_sysctl_*);
+	__stop_set_sysctl_set = ABSOLUTE(.);
+	*(set_domain_*);
+	*(set_pseudo_*);
+
+	*(.eh_fram)
+	. = ALIGN (0x10);
+
+	/*
+	 * C++ constructors
+	 */
+	__CTOR_LIST__ = .;
+	LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+	*(.ctors)
+	LONG(0)
+	__CTOR_END__ = .;
+	__DTOR_LIST__ = .;
+	LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+	*(.dtors)
+	LONG(0)
+	__DTOR_END__ = .;
+	_etext = ALIGN( 0x10 ) ;
+        }
+        .data :
+	{
+	data_start = . ;
+	_data_start = . ;
+        *(.data)
+	_edata = ALIGN( 0x10 ) ;
+        }
+        .bss :
+        {
+	bss_start = . ;
+	_bss_start = . ;
+	*(.bss)
+	*(COMMON)
+	WorkAreaBase = . ;
+	end = . ;
+	_end = . ;
+	__end = . ;	
+	}
+        
+}