Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / microblaze / cpu / exception.c

diff --git a/qemu/roms/u-boot/arch/microblaze/cpu/exception.c b/qemu/roms/u-boot/arch/microblaze/cpu/exception.c
new file mode 100644 (file)
index 0000000..227842f
--- /dev/null
+++ b/qemu/roms/u-boot/arch/microblaze/cpu/exception.c
@@ -0,0 +1,61 @@
+/*
+ * (C) Copyright 2007 Michal Simek
+ *
+ * Michal  SIMEK <monstr@monstr.eu>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/asm.h>
+
+void _hw_exception_handler (void)
+{
+       int address = 0;
+       int state = 0;
+       /* loading address of exception EAR */
+       MFS (address, rear);
+       /* loading excetpion state register ESR */
+       MFS (state, resr);
+       printf ("Hardware exception at 0x%x address\n", address);
+       switch (state & 0x1f) { /* mask on exception cause */
+       case 0x1:
+               puts ("Unaligned data access exception\n");
+               break;
+       case 0x2:
+               puts ("Illegal op-code exception\n");
+               break;
+       case 0x3:
+               puts ("Instruction bus error exception\n");
+               break;
+       case 0x4:
+               puts ("Data bus error exception\n");
+               break;
+       case 0x5:
+               puts ("Divide by zero exception\n");
+               break;
+#ifdef MICROBLAZE_V5
+       case 0x7:
+               puts("Priviledged or stack protection violation exception\n");
+               break;
+       case 0x1000:
+               puts ("Exception in delay slot\n");
+               break;
+#endif
+       default:
+               puts ("Undefined cause\n");
+               break;
+       }
+       printf ("Unaligned %sword access\n", ((state & 0x800) ? "" : "half"));
+       printf ("Unaligned %s access\n", ((state & 0x400) ? "store" : "load"));
+       printf ("Register R%x\n", (state & 0x3E) >> 5);
+       hang ();
+}
+
+#ifdef CONFIG_SYS_USR_EXCEP
+void _exception_handler (void)
+{
+       puts ("User vector_exception\n");
+       hang ();
+}
+#endif