diff options
author | Paul Mundt <lethal@linux-sh.org> | 2007-11-08 09:51:33 (GMT) |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2008-01-28 04:18:39 (GMT) |
commit | dd730b8ff8adfdf8d39cd060acc7223f0d374d32 (patch) | |
tree | 24fd26e5c6e6ae72f921530693d0cf923962a895 /arch/sh/lib64/panic.c | |
parent | 2c6deb5ea414c26483578d41d8537d54dd2d282f (diff) | |
download | linux-fsl-qoriq-dd730b8ff8adfdf8d39cd060acc7223f0d374d32.tar.xz |
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.c | 58 |
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 0000000..c9eb1cb --- /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 (;;) ; + +} |