Support for MPC505 from Sergei Organov <osv@Javad.RU>. His patch was

against 3.6.0 so was painful to merge.  It should be OK but there
is no guarantee and there are no BSPs in the tree to exercise it.

5 files changed, 314 insertions, 0 deletions

diff --git a/c/src/lib/libcpu/powerpc/mpc505/Makefile.in b/c/src/lib/libcpu/powerpc/mpc505/Makefile.in
new file mode 100644
index 0000000000..bcf59d47c9
--- /dev/null
+++ b/c/src/lib/libcpu/powerpc/mpc505/Makefile.in
@@ -0,0 +1,25 @@
+#
+#  $Id$
+#
+
+@SET_MAKE@
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+top_builddir = ../../..
+subdir = libcpu/powerpc/mpc505
+
+RTEMS_ROOT = @RTEMS_ROOT@
+PROJECT_ROOT = @PROJECT_ROOT@
+
+VPATH = @srcdir@
+
+include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
+include $(RTEMS_ROOT)/make/directory.cfg
+
+INSTALL_CHANGE = @INSTALL_CHANGE@
+
+SUB_DIRS=vectors timer wrapup
+
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	cd $(top_builddir) \
+	 && CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status
diff --git a/c/src/lib/libcpu/powerpc/mpc505/timer/Makefile.in b/c/src/lib/libcpu/powerpc/mpc505/timer/Makefile.in
new file mode 100644
index 0000000000..76e6803d46
--- /dev/null
+++ b/c/src/lib/libcpu/powerpc/mpc505/timer/Makefile.in
@@ -0,0 +1,71 @@
+#
+#  $Id$
+#
+
+@SET_MAKE@
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+top_builddir = ../../../..
+subdir = libcpu/powerpc/mpc505/timer
+
+RTEMS_ROOT = @RTEMS_ROOT@
+PROJECT_ROOT = @PROJECT_ROOT@
+
+VPATH = @srcdir@
+
+PGM = ${ARCH}/timer.rel
+
+# C source names, if any, go here -- minus the .c
+C_PIECES = timer
+C_FILES = $(C_PIECES:%=%.c)
+C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)
+
+H_FILES =
+
+# Assembly source names, if any, go here -- minus the .S
+S_PIECES =
+S_FILES = $(S_PIECES:%=%.S)
+S_O_FILES = $(S_FILES:%.S=${ARCH}/%.o)
+
+SRCS = $(C_FILES) $(CC_FILES) $(H_FILES) $(S_FILES)
+OBJS = $(C_O_FILES) $(CC_O_FILES) $(S_O_FILES)
+
+include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
+include $(RTEMS_ROOT)/make/leaf.cfg
+
+INSTALL_CHANGE = @INSTALL_CHANGE@
+
+#
+# (OPTIONAL) Add local stuff here using +=
+#
+
+DEFINES +=
+CPPFLAGS +=
+CFLAGS += $(CFLAGS_OS_V)
+
+LD_PATHS +=
+LD_LIBS +=
+LDFLAGS +=
+
+#
+# Add your list of files to delete here.  The config files
+#  already know how to delete some stuff, so you may want
+#  to just run 'make clean' first to see what gets missed.
+#  'make clobber' already includes 'make clean'
+#
+
+CLEAN_ADDITIONS +=
+CLOBBER_ADDITIONS +=
+
+${PGM}: ${SRCS} ${OBJS}
+	$(make-rel)
+
+all: ${ARCH} $(SRCS) $(PGM)
+
+# the .rel file built here will be put into libbsp.a by
+#    libbsp/hppa/BSP/wrapup/Makefile
+install: all
+
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	cd $(top_builddir) \
+	 && CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status
diff --git a/c/src/lib/libcpu/powerpc/mpc505/timer/timer.c b/c/src/lib/libcpu/powerpc/mpc505/timer/timer.c
new file mode 100644
index 0000000000..c0c23efa51
--- /dev/null
+++ b/c/src/lib/libcpu/powerpc/mpc505/timer/timer.c
@@ -0,0 +1,70 @@
+/*  timer.c
+ *
+ *  This file manages the benchmark timer used by the RTEMS Timing Test
+ *  Suite.  Each measured time period is demarcated by calls to
+ *  Timer_initialize() and Read_timer().  Read_timer() usually returns
+ *  the number of microseconds since Timer_initialize() exitted.
+ *
+ *  NOTE: It is important that the timer start/stop overhead be
+ *        determined when porting or modifying this code.
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  timer.c,v 1.2 1995/05/31 16:56:39 joel Exp
+ */
+
+#include "rtems.h"
+
+rtems_boolean Timer_driver_Find_average_overhead;
+
+static unsigned int volatile lastInitValue;
+
+void Timer_initialize( void )
+{
+  asm volatile( " mftb %0": "=r" (lastInitValue) );
+}
+
+/*
+ *  The following controls the behavior of Read_timer().
+ *
+ *  AVG_OVEREHAD is the overhead for starting and stopping the timer.  It
+ *  is usually deducted from the number returned.
+ *
+ *  LEAST_VALID is the lowest number this routine should trust.  Numbers
+ *  below this are "noise" and zero is returned.
+ */
+
+#define AVG_OVERHEAD      0  /* It typically takes X.X microseconds */
+                             /* (Y countdowns) to start/stop the timer. */
+                             /* This value is in microseconds. */
+#define LEAST_VALID       1  /* Don't trust a clicks value lower than this */
+
+int Read_timer( void )
+{
+  rtems_unsigned32 value;
+  asm volatile ( " mftb %0": "=r" (value) );
+  return value - lastInitValue;
+}
+
+/*
+ *  Empty function call used in loops to measure basic cost of looping
+ *  in Timing Test Suite.
+ */
+
+rtems_status_code Empty_function( void )
+{
+  return RTEMS_SUCCESSFUL;
+}
+
+void Set_find_average_overhead(
+  rtems_boolean find_flag
+)
+{
+  Timer_driver_Find_average_overhead = find_flag;
+}
diff --git a/c/src/lib/libcpu/powerpc/mpc505/vectors/Makefile.in b/c/src/lib/libcpu/powerpc/mpc505/vectors/Makefile.in
new file mode 100644
index 0000000000..dc49a30e99
--- /dev/null
+++ b/c/src/lib/libcpu/powerpc/mpc505/vectors/Makefile.in
@@ -0,0 +1,70 @@
+#
+#  $Id$
+#
+
+@SET_MAKE@
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+top_builddir = ../../../..
+subdir = libcpu/powerpc/mpc505/vectors
+
+RTEMS_ROOT = @RTEMS_ROOT@
+PROJECT_ROOT = @PROJECT_ROOT@
+
+VPATH = @srcdir@
+
+PGM = ${ARCH}/vectors.rel
+
+# C source names, if any, go here -- minus the .c
+C_PIECES =
+C_FILES = $(C_PIECES:%=%.c)
+C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)
+
+H_FILES =
+
+# Assembly source names, if any, go here -- minus the .S
+S_PIECES = vectors align_h
+S_FILES = $(S_PIECES:%=%.S)
+S_O_FILES = $(S_FILES:%.S=${ARCH}/%.o)
+
+SRCS = $(C_FILES) $(CC_FILES) $(H_FILES) $(S_FILES)
+OBJS = $(C_O_FILES) $(CC_O_FILES) $(S_O_FILES)
+
+include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
+include $(RTEMS_ROOT)/make/leaf.cfg
+
+INSTALL_CHANGE = @INSTALL_CHANGE@
+
+#
+# (OPTIONAL) Add local stuff here using +=
+#
+
+DEFINES +=
+CPPFLAGS +=
+CFLAGS +=
+
+LD_PATHS +=
+LD_LIBS +=
+LDFLAGS +=
+
+#
+# Add your list of files to delete here.  The config files
+#  already know how to delete some stuff, so you may want
+#  to just run 'make clean' first to see what gets missed.
+#  'make clobber' already includes 'make clean'
+#
+
+CLEAN_ADDITIONS +=
+CLOBBER_ADDITIONS +=
+
+${PGM}: ${SRCS} ${OBJS}
+	$(make-rel)
+
+all: ${ARCH} $(SRCS) $(PGM)
+
+# the .rel file built here will be put into libbsp.a by ../wrapup/Makefile
+install: all
+
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	cd $(top_builddir) \
+	 && CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status
diff --git a/c/src/lib/libcpu/powerpc/mpc505/vectors/vectors.S b/c/src/lib/libcpu/powerpc/mpc505/vectors/vectors.S
new file mode 100644
index 0000000000..be3bd6ffe5
--- /dev/null
+++ b/c/src/lib/libcpu/powerpc/mpc505/vectors/vectors.S
@@ -0,0 +1,78 @@
+/*  vectors.s	1.1 - 95/12/04
+ *
+ *  This file contains the assembly code for the PowerPC 505
+ *  interrupt veneers for RTEMS.
+ *
+ *  Author:	Sergei Organov <osv@javad.ru>
+ *
+ *  COPYRIGHT (c) 1998 by JPS.
+ *
+ *  To anyone who acknowledges that this file is provided "AS IS"
+ *  without any express or implied warranty:
+ *      permission to use, copy, modify, and distribute this file
+ *      for any purpose is hereby granted without fee, provided that
+ *      the above copyright notice and this notice appears in all
+ *      copies, and that the name of i-cubed limited not be used in
+ *      advertising or publicity pertaining to distribution of the
+ *      software without specific, written prior permission.
+ *      i-cubed limited makes no representations about the suitability
+ *      of this software for any purpose.
+ *
+ */
+
+#include "asm.h"
+#include "ppc_offs.h"
+
+	/* Vector offsets */
+        .set    reset,                  0x0100 # PPC_IRQ_RESET
+        .set    machine_check,          0x0200 # PPC_IRQ_MCHECK
+        .set    dsi,                    0x0300 # PPC_IRQ_PROTECT
+        .set    isi,                    0x0400 # PPC_IRQ_ISI
+	.set    external_interrupt,	0x0500 # PPC_IRQ_EXTERNAL
+	.set    alignment,		0x0600 # PPC_IRQ_ALIGN
+	.set    program,		0x0700 # PPC_IRQ_PROGRAM
+	.set    fp_unavailable,		0x0800 # PPC_IRQ_NOFP
+	.set	decrementer,		0x0900 # PPC_IRQ_DEC
+	.set    system_call,		0x0C00 # PPC_IRQ_SCALL
+	.set    trace,                  0x0D00 # PPC_IRQ_TRACE
+	.set    fp_assist,		0x0E00 # PPC_IRQ_FPASSIST
+	.set    software_emulation,	0x1000 # PPC_IRQ_SOFTEMU
+	.set	data_bp,        	0x1C00 # PPC_IRQ_DATA_BP
+	.set	istruction_bp,  	0x1D00 # PPC_IRQ_INST_BP
+	.set	m_extern_bp,    	0x1E00 # PPC_IRQ_MEXT_BP
+	.set    nm_extern_bp,		0x1F00 # PPC_IRQ_NMEXT_BP
+
+#if (PPC_ABI == PPC_ABI_POWEROPEN || PPC_ABI == PPC_ABI_GCC27)
+#define ABI_ADD 20*4
+#else
+#define ABI_ADD 0
+#endif
+
+#define ISR_HANDLER(vector, irq) \
+        .org	vector; \
+	stwu	r1, -(ABI_ADD + IP_END)(r1); \
+	stw	r0, IP_0(r1); \
+	li      r0, irq; \
+	b       PROC (_ISR_Handler);
+
+        /* Go to the right section */
+	.section .vect,"ax",@progbits
+        .globl  __vect
+__vect:
+        ISR_HANDLER(reset,              PPC_IRQ_RESET)
+        ISR_HANDLER(machine_check,      PPC_IRQ_MCHECK)
+        ISR_HANDLER(dsi,                PPC_IRQ_PROTECT)
+        ISR_HANDLER(isi,                PPC_IRQ_ISI)
+        ISR_HANDLER(external_interrupt, PPC_IRQ_EXTERNAL)
+        ISR_HANDLER(alignment,          PPC_IRQ_ALIGN)
+        ISR_HANDLER(program,            PPC_IRQ_PROGRAM)
+        ISR_HANDLER(fp_unavailable,     PPC_IRQ_NOFP)
+        ISR_HANDLER(decrementer,        PPC_IRQ_DEC)
+        ISR_HANDLER(system_call,        PPC_IRQ_SCALL)
+        ISR_HANDLER(trace,              PPC_IRQ_TRACE)
+        ISR_HANDLER(fp_assist,          PPC_IRQ_FPASSIST)
+        ISR_HANDLER(software_emulation, PPC_IRQ_SOFTEMU)
+	ISR_HANDLER(data_bp,		PPC_IRQ_DATA_BP)
+	ISR_HANDLER(istruction_bp,  	PPC_IRQ_INST_BP)
+	ISR_HANDLER(m_extern_bp,    	PPC_IRQ_MEXT_BP)
+	ISR_HANDLER(nm_extern_bp,	PPC_IRQ_NMEXT_BP)