git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * Copyright (C) 2003 Richard Curnow, SuperH UK Limited | |
| 3 | * | |
| 4 | * This file is subject to the terms and conditions of the GNU General Public | |
| 5 | * License. See the file "COPYING" in the main directory of this archive | |
| 6 | * for more details. | |
| 7 | */ | |
| 8 | ||
| 9 | #include <linux/kernel.h> | |
| 10 | #include <asm/io.h> | |
| 11 | #include <asm/registers.h> | |
| 12 | ||
| 13 | /* THIS IS A PHYSICAL ADDRESS */ | |
| 14 | #define HDSP2534_ADDR (0x04002100) | |
| 15 | ||
| 16 | #ifdef CONFIG_SH_CAYMAN | |
| 17 | ||
| 18 | static void poor_mans_delay(void) | |
| 19 | { | |
| 20 | int i; | |
| 21 | for (i = 0; i < 2500000; i++) { | |
| 22 | } /* poor man's delay */ | |
| 23 | } | |
| 24 | ||
| 25 | static void show_value(unsigned long x) | |
| 26 | { | |
| 27 | int i; | |
| 28 | unsigned nibble; | |
| 29 | for (i = 0; i < 8; i++) { | |
| 30 | nibble = ((x >> (i * 4)) & 0xf); | |
| 31 | ||
| 32 | ctrl_outb(nibble + ((nibble > 9) ? 55 : 48), | |
| 33 | HDSP2534_ADDR + 0xe0 + ((7 - i) << 2)); | |
| 34 | } | |
| 35 | } | |
| 36 | ||
| 37 | #endif | |
| 38 | ||
| 39 | void | |
| 40 | panic_handler(unsigned long panicPC, unsigned long panicSSR, | |
| 41 | unsigned long panicEXPEVT) | |
| 42 | { | |
| 43 | #ifdef CONFIG_SH_CAYMAN | |
| 44 | while (1) { | |
| 45 | /* This piece of code displays the PC on the LED display */ | |
| 46 | show_value(panicPC); | |
| 47 | poor_mans_delay(); | |
| 48 | show_value(panicSSR); | |
| 49 | poor_mans_delay(); | |
| 50 | show_value(panicEXPEVT); | |
| 51 | poor_mans_delay(); | |
| 52 | } | |
| 53 | #endif | |
| 54 | ||
| 55 | /* Never return from the panic handler */ | |
| 56 | for (;;) ; | |
| 57 | ||
| 58 | } |