X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Farch%2Fmicroblaze%2Fcpu%2Fexception.c;fp=qemu%2Froms%2Fu-boot%2Farch%2Fmicroblaze%2Fcpu%2Fexception.c;h=227842f6a483a585a36574fa5857557c00affc61;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

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
index 000000000..227842f6a
--- /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