projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 012771d8 WD |
1 | /* |
| 2 | * (C) Copyright 2001 | |
| 3 | * Erik Theisen, Wave 7 Optics, [email protected]. | |
| 4 | * | |
| 5 | * See file CREDITS for list of people who contributed to this | |
| 6 | * project. | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU General Public License as | |
| 10 | * published by the Free Software Foundation; either version 2 of | |
| 11 | * the License, or (at your option) any later version. | |
| 12 | * | |
| 13 | * This program is distributed in the hope that it will be useful, | |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | * GNU General Public License for more details. | |
| 17 | * | |
| 18 | * You should have received a copy of the GNU General Public License | |
| 19 | * along with this program; if not, write to the Free Software | |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
| 21 | * MA 02111-1307 USA | |
| 22 | */ | |
| 23 | ||
| 24 | /* | |
| 25 | * Watchdog functions and macros. | |
| 26 | */ | |
| 27 | #ifndef _WATCHDOG_H_ | |
| 28 | #define _WATCHDOG_H_ | |
| 29 | ||
| 30 | #if defined(CONFIG_HW_WATCHDOG) && defined(CONFIG_WATCHDOG) | |
| 31 | # error "Configuration error: CONFIG_HW_WATCHDOG and CONFIG_WATCHDOG can't be used together." | |
| 32 | #endif | |
| 33 | ||
| 34 | /* | |
| 35 | * Hardware watchdog | |
| 36 | */ | |
| 37 | #ifdef CONFIG_HW_WATCHDOG | |
| 38 | #if defined(__ASSEMBLY__) | |
| 39 | #define WATCHDOG_RESET bl hw_watchdog_reset | |
| 40 | #else | |
| 41 | extern void hw_watchdog_reset(void); | |
| 42 | ||
| 43 | #define WATCHDOG_RESET hw_watchdog_reset | |
| 44 | #endif /* __ASSEMBLY__ */ | |
| 45 | #else | |
| 46 | /* | |
| 47 | * Maybe a software watchdog? | |
| 48 | */ | |
| 49 | #if defined(CONFIG_WATCHDOG) | |
| 50 | #if defined(__ASSEMBLY__) | |
| 51 | #define WATCHDOG_RESET bl watchdog_reset | |
| 52 | #else | |
| 53 | extern void watchdog_reset(void); | |
| 54 | ||
| 55 | #define WATCHDOG_RESET watchdog_reset | |
| 56 | #endif | |
| 57 | #else | |
| 58 | /* | |
| 59 | * No hardware or software watchdog. | |
| 60 | */ | |
| 61 | #if defined(__ASSEMBLY__) | |
| 62 | #define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/ | |
| 63 | #else | |
| 64 | #define WATCHDOG_RESET() {} | |
| 65 | #endif /* __ASSEMBLY__ */ | |
| 66 | #endif /* CONFIG_WATCHDOG && !__ASSEMBLY__ */ | |
| 67 | #endif /* CONFIG_HW_WATCHDOG */ | |
| 68 | ||
| 69 | /* | |
| 70 | * Prototypes from $(CPU)/cpu.c. | |
| 71 | */ | |
| 72 | ||
| 73 | /* MPC 8xx */ | |
| 74 | #if (defined(CONFIG_8xx) || defined(CONFIG_MPC860)) && !defined(__ASSEMBLY__) | |
| 75 | void reset_8xx_watchdog(volatile immap_t *immr); | |
| 76 | #endif | |
| 77 | ||
| 78 | /* IBM 4xx */ | |
| 79 | #if defined(CONFIG_4xx) && !defined(__ASSEMBLY__) | |
| 80 | void reset_4xx_watchdog(void); | |
| 81 | #endif | |
| 82 | ||
| 83 | /* MPC 8260 */ | |
| 84 | #if defined(CONFIG_MPC8260) && !defined(__ASSEMBLY__) | |
| 85 | #if defined(CONFIG_WATCHDOG) | |
| 86 | extern __inline__ void | |
| 87 | reset_8260_watchdog(volatile immap_t *immr) | |
| 88 | { | |
| 89 | immr->im_siu_conf.sc_swsr = 0x556c; | |
| 90 | immr->im_siu_conf.sc_swsr = 0xaa39; | |
| 91 | } | |
| 92 | #endif /* !__ASSEMBLY__ && CONFIG_WATCHDOG */ | |
| 93 | #endif /* CONFIG_MPC8260 && !__ASSEMBLY__ */ | |
| 94 | ||
| 95 | #endif /* _WATCHDOG_H_ */ | |
| 96 |