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-rw-r--r--examples/Makefile92
-rw-r--r--examples/interrupt.c81
-rw-r--r--examples/stubs.c13
3 files changed, 155 insertions, 31 deletions
diff --git a/examples/Makefile b/examples/Makefile
index a342d75..423a79b 100644
--- a/examples/Makefile
+++ b/examples/Makefile
@@ -1,5 +1,5 @@
#
-# (C) Copyright 2000-2004
+# (C) Copyright 2000-2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
@@ -57,56 +57,75 @@ ifeq ($(ARCH),blackfin)
LOAD_ADDR = 0x1000
endif
+ifeq ($(ARCH),avr32)
+LOAD_ADDR = 0x00000000
+endif
+
include $(TOPDIR)/config.mk
+ELF = hello_world
SREC = hello_world.srec
-BIN = hello_world.bin hello_world
+BIN = hello_world.bin
ifeq ($(CPU),mpc8xx)
+ELF = test_burst
SREC = test_burst.srec
-BIN = test_burst.bin test_burst
+BIN = test_burst.bin
endif
ifeq ($(ARCH),i386)
-SREC += 82559_eeprom.srec
-BIN += 82559_eeprom.bin 82559_eeprom
+ELF += 82559_eeprom
+SREC += 82559_eeprom.srec
+BIN += 82559_eeprom.bin
endif
ifeq ($(ARCH),ppc)
-SREC += sched.srec
-BIN += sched.bin sched
+ELF += sched
+SREC += sched.srec
+BIN += sched.bin
endif
ifeq ($(ARCH),blackfin)
+ELF += smc91111_eeprom
SREC += smc91111_eeprom.srec
-BIN += smc91111_eeprom.bin smc91111_eeprom
+BIN += smc91111_eeprom.bin
endif
# The following example is pretty 8xx specific...
ifeq ($(CPU),mpc8xx)
-SREC += timer.srec
-BIN += timer.bin timer
+ELF += timer
+SREC += timer.srec
+BIN += timer.bin
endif
# The following example is 8260 specific...
ifeq ($(CPU),mpc8260)
-SREC += mem_to_mem_idma2intr.srec
-BIN += mem_to_mem_idma2intr.bin mem_to_mem_idma2intr
+ELF += mem_to_mem_idma2intr
+SREC += mem_to_mem_idma2intr.srec
+BIN += mem_to_mem_idma2intr.bin
+endif
+
+# Demo for 52xx IRQs
+ifeq ($(CPU),mpc5xxx)
+ELF += interrupt
+SREC += interrupt.srec
+BIN += interrupt.bin
endif
# Utility for resetting i82559 EEPROM
ifeq ($(BOARD),oxc)
-SREC += eepro100_eeprom.srec
-BIN += eepro100_eeprom.bin eepro100_eeprom
+ELF += eepro100_eeprom
+SREC += eepro100_eeprom.srec
+BIN += eepro100_eeprom.bin
endif
ifeq ($(BIG_ENDIAN),y)
EX_LDFLAGS += -EB
endif
-OBJS = $(SREC:.srec=.o)
+COBJS := $(SREC:.srec=.o)
-LIB = libstubs.a
+LIB = $(obj)libstubs.a
LIBAOBJS=
ifeq ($(ARCH),ppc)
LIBAOBJS+= $(ARCH)_longjmp.o $(ARCH)_setjmp.o
@@ -115,34 +134,45 @@ ifeq ($(CPU),mpc8xx)
LIBAOBJS+= test_burst_lib.o
endif
LIBCOBJS= stubs.o
-LIBOBJS = $(LIBAOBJS) $(LIBCOBJS)
+
+LIBOBJS = $(addprefix $(obj),$(LIBAOBJS) $(LIBCOBJS))
+
+SRCS := $(COBJS:.o=.c) $(LIBCOBJS:.o=.c) $(if $(LIBAOBJS),$(LIBAOBJS:.o=.S))
+OBJS := $(addprefix $(obj),$(COBJS))
+ELF := $(addprefix $(obj),$(ELF))
+BIN := $(addprefix $(obj),$(BIN))
+SREC := $(addprefix $(obj),$(SREC))
gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`)
clibdir := $(shell dirname `$(CC) $(CFLAGS) -print-file-name=libc.a`)
CPPFLAGS += -I..
-all: .depend $(OBJS) $(LIB) $(SREC) $(BIN)
+all: $(obj).depend $(OBJS) $(LIB) $(SREC) $(BIN) $(ELF)
#########################################################################
-$(LIB): .depend $(LIBOBJS)
- $(AR) crv $@ $(LIBOBJS)
+$(LIB): $(obj).depend $(LIBOBJS)
+ $(AR) $(ARFLAGS) $@ $(LIBOBJS)
+
+$(ELF):
+$(obj)%: $(obj)%.o $(LIB)
+ $(LD) -g $(EX_LDFLAGS) -Ttext $(LOAD_ADDR) \
+ -o $@ -e $(notdir $(<:.o=)) $< $(LIB) \
+ -L$(gcclibdir) -lgcc
-%: %.o $(LIB)
- $(LD) -g $(EX_LDFLAGS) -Ttext $(LOAD_ADDR) \
- -o $@ -e $(<:.o=) $< $(LIB) \
- -L$(gcclibdir) -lgcc
-%.srec: %
- $(OBJCOPY) -O srec $< $@ 2>/dev/null
+$(SREC):
+$(obj)%.srec: $(obj)%
+ $(OBJCOPY) -O srec $< $@ 2>/dev/null
-%.bin: %
- $(OBJCOPY) -O binary $< $@ 2>/dev/null
+$(BIN):
+$(obj)%.bin: $(obj)%
+ $(OBJCOPY) -O binary $< $@ 2>/dev/null
#########################################################################
-.depend: Makefile $(OBJS:.o=.c) $(LIBCOBJS:.o=.c) $(LIBAOBJS:.o=.S)
- $(CC) -M $(CFLAGS) $(OBJS:.o=.c) $(LIBCOBJS:.o=.c) $(LIBAOBJS:.o=.S) > $@
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
-sinclude .depend
+sinclude $(obj).depend
#########################################################################
diff --git a/examples/interrupt.c b/examples/interrupt.c
new file mode 100644
index 0000000..f3061d1
--- /dev/null
+++ b/examples/interrupt.c
@@ -0,0 +1,81 @@
+/*
+ * (C) Copyright 2006
+ * Detlev Zundel, DENX Software Engineering, dzu@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ * This is a very simple standalone application demonstrating
+ * catching IRQs on the MPC52xx architecture.
+ *
+ * The interrupt to be intercepted can be specified as an argument
+ * to the application. Specifying nothing will intercept IRQ1 on the
+ * MPC5200 platform. On the CR825 carrier board from MicroSys this
+ * maps to the ABORT switch :)
+ *
+ * Note that the specified vector is only a logical number specified
+ * by the respective header file.
+ */
+
+#include <common.h>
+#include <exports.h>
+#include <config.h>
+
+#if defined(CONFIG_MPC5xxx)
+#define DFL_IRQ MPC5XXX_IRQ1
+#else
+#define DFL_IRQ 0
+#endif
+
+static void irq_handler (void *arg);
+
+int interrupt (int argc, char *argv[])
+{
+ int c, irq = -1;
+
+ app_startup (argv);
+
+ if (argc > 1)
+ irq = simple_strtoul (argv[1], NULL, 0);
+ if ((irq < 0) || (irq > NR_IRQS))
+ irq = DFL_IRQ;
+
+ printf ("Installing handler for irq vector %d and doing busy wait\n",
+ irq);
+ printf ("Press 'q' to quit\n");
+
+ /* Install interrupt handler */
+ install_hdlr (irq, irq_handler, NULL);
+ while ((c = getc ()) != 'q') {
+ printf ("Ok, ok, I am still alive!\n");
+ }
+
+ free_hdlr (irq);
+ printf ("\nInterrupt handler has been uninstalled\n");
+
+ return (0);
+}
+
+/*
+ * Handler for interrupt
+ */
+static void irq_handler (void *arg)
+{
+ /* just for demonstration */
+ printf ("+");
+}
diff --git a/examples/stubs.c b/examples/stubs.c
index 1caa575..ffd314e 100644
--- a/examples/stubs.c
+++ b/examples/stubs.c
@@ -138,6 +138,19 @@ gd_t *global_data;
" P0 = [P0 + %1]\n" \
" JUMP (P0)\n" \
: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "P0");
+#elif defined(CONFIG_AVR32)
+/*
+ * r6 holds the pointer to the global_data. r8 is call clobbered.
+ */
+#define EXPORT_FUNC(x) \
+ asm volatile( \
+ " .globl\t" #x "\n" \
+ #x ":\n" \
+ " ld.w r8, r6[%0]\n" \
+ " ld.w pc, r8[%1]\n" \
+ : \
+ : "i"(offsetof(gd_t, jt)), "i"(XF_ ##x) \
+ : "r8");
#else
#error stubs definition missing for this architecture
#endif
generated by cgit v1.1 at 2024-12-13 04:46:35 +0000