summaryrefslogtreecommitdiff
path: root/arch/m68k/coldfire/vectors.c
diff options
context:
space:
mode:
authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/m68k/coldfire/vectors.c
Initial import
Diffstat (limited to 'arch/m68k/coldfire/vectors.c')
-rw-r--r--arch/m68k/coldfire/vectors.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/arch/m68k/coldfire/vectors.c b/arch/m68k/coldfire/vectors.c
new file mode 100644
index 000000000..08923fe60
--- /dev/null
+++ b/arch/m68k/coldfire/vectors.c
@@ -0,0 +1,70 @@
+/***************************************************************************/
+
+/*
+ * vectors.c -- high level trap setup for ColdFire
+ *
+ * Copyright (C) 1999-2007, Greg Ungerer <gerg@snapgear.com>
+ */
+
+/***************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <asm/traps.h>
+#include <asm/machdep.h>
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+#include <asm/mcfwdebug.h>
+
+/***************************************************************************/
+
+#ifdef TRAP_DBG_INTERRUPT
+
+asmlinkage void dbginterrupt_c(struct frame *fp)
+{
+ extern void dump(struct pt_regs *fp);
+ printk(KERN_DEBUG "%s(%d): BUS ERROR TRAP\n", __FILE__, __LINE__);
+ dump((struct pt_regs *) fp);
+ asm("halt");
+}
+
+#endif
+
+/***************************************************************************/
+
+/* Assembler routines */
+asmlinkage void buserr(void);
+asmlinkage void trap(void);
+asmlinkage void system_call(void);
+asmlinkage void inthandler(void);
+
+void __init trap_init(void)
+{
+ int i;
+
+ /*
+ * There is a common trap handler and common interrupt
+ * handler that handle almost every vector. We treat
+ * the system call and bus error special, they get their
+ * own first level handlers.
+ */
+ for (i = 3; (i <= 23); i++)
+ _ramvec[i] = trap;
+ for (i = 33; (i <= 63); i++)
+ _ramvec[i] = trap;
+ for (i = 24; (i <= 31); i++)
+ _ramvec[i] = inthandler;
+ for (i = 64; (i < 255); i++)
+ _ramvec[i] = inthandler;
+ _ramvec[255] = 0;
+
+ _ramvec[2] = buserr;
+ _ramvec[32] = system_call;
+
+#ifdef TRAP_DBG_INTERRUPT
+ _ramvec[12] = dbginterrupt;
+#endif
+}
+
+/***************************************************************************/