* Some code cleanup

* Patch by Josef Baumgartner, 10 Feb 2004:
  Fixes for Coldfire port

* Patch by Brad Kemp, 11 Feb 2004:
  Fix CFI flash driver problems

examples/Makefile

@@ -41,6 +41,10 @@ ifeq ($(ARCH),nios)
 LOAD_ADDR = 0x01000000 -L $(gcclibdir)/m32 -T nios.lds
 endif
 
+ifeq ($(ARCH),m68k)
+LOAD_ADDR = 0x20000  -L $(clibdir)
+endif
+
 include $(TOPDIR)/config.mk
 
 SREC	= hello_world.srec
@@ -56,11 +60,6 @@ SREC   += sched.srec
 BIN    += sched.bin sched
 endif
 
-ifeq ($(ARCH),m68k)
-SREC =
-BIN =
-endif
-
 # The following example is pretty 8xx specific...
 ifeq ($(CPU),mpc8xx)
 SREC   += timer.srec
@@ -94,6 +93,7 @@ LIBCOBJS= stubs.o
 LIBOBJS	= $(LIBAOBJS) $(LIBCOBJS)
 
 gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`)
+clibdir := $(shell dirname `$(CC) $(CFLAGS) -print-file-name=libc.a`)
 
 CPPFLAGS += -I..
 

examples/stubs.c

@@ -78,6 +78,22 @@ gd_t *global_data;
 "	jmp	%%g0\n"			\
 "	nop	\n"			\
 	: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x) : "r0");
+#elif defined(CONFIG_M68K)
+/*
+ * d7 holds the pointer to the global_data, a0 is a call-clobbered
+ * register
+ */
+#define EXPORT_FUNC(x) \
+	asm volatile (			\
+"	.globl " #x "\n"		\
+#x ":\n"				\
+"	move.l	%%d7, %%a0\n"		\
+"	adda.l	%0, %%a0\n"		\
+"	move.l	(%%a0), %%a0\n"		\
+"	adda.l	%1, %%a0\n"		\
+"	move.l	(%%a0), %%a0\n"		\
+"	jmp	(%%a0)\n"			\
+	: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "a0");
 #else
 #error stubs definition missing for this architecture
 #endif