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authorPaul Mundt <lethal@linux-sh.org>2007-11-08 18:51:33 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-01-28 13:18:39 +0900
commitdd730b8ff8adfdf8d39cd060acc7223f0d374d32 (patch)
tree24fd26e5c6e6ae72f921530693d0cf923962a895 /arch/sh/lib64/panic.c
parent2c6deb5ea414c26483578d41d8537d54dd2d282f (diff)
sh: Move arch/sh64/lib to arch/sh/lib64.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/lib64/panic.c')
-rw-r--r--arch/sh/lib64/panic.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/sh/lib64/panic.c b/arch/sh/lib64/panic.c
new file mode 100644
index 000000000000..c9eb1cb50d97
--- /dev/null
+++ b/arch/sh/lib64/panic.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2003 Richard Curnow, SuperH UK Limited
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/kernel.h>
+#include <asm/io.h>
+#include <asm/registers.h>
+
+/* THIS IS A PHYSICAL ADDRESS */
+#define HDSP2534_ADDR (0x04002100)
+
+#ifdef CONFIG_SH_CAYMAN
+
+static void poor_mans_delay(void)
+{
+ int i;
+ for (i = 0; i < 2500000; i++) {
+ } /* poor man's delay */
+}
+
+static void show_value(unsigned long x)
+{
+ int i;
+ unsigned nibble;
+ for (i = 0; i < 8; i++) {
+ nibble = ((x >> (i * 4)) & 0xf);
+
+ ctrl_outb(nibble + ((nibble > 9) ? 55 : 48),
+ HDSP2534_ADDR + 0xe0 + ((7 - i) << 2));
+ }
+}
+
+#endif
+
+void
+panic_handler(unsigned long panicPC, unsigned long panicSSR,
+ unsigned long panicEXPEVT)
+{
+#ifdef CONFIG_SH_CAYMAN
+ while (1) {
+ /* This piece of code displays the PC on the LED display */
+ show_value(panicPC);
+ poor_mans_delay();
+ show_value(panicSSR);
+ poor_mans_delay();
+ show_value(panicEXPEVT);
+ poor_mans_delay();
+ }
+#endif
+
+ /* Never return from the panic handler */
+ for (;;) ;
+
+}