| /* | |
| * Copyright (C) 2004-2006 Atmel Corporation | |
| * | |
| * This program is free software; you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License version 2 as | |
| * published by the Free Software Foundation. | |
| */ | |
| #ifndef __ASM_AVR32_TIMEX_H | |
| #define __ASM_AVR32_TIMEX_H | |
| /* | |
| * This is the frequency of the timer used for Linux's timer interrupt. | |
| * The value should be defined as accurate as possible or under certain | |
| * circumstances Linux timekeeping might become inaccurate or fail. | |
| * | |
| * For many system the exact clockrate of the timer isn't known but due to | |
| * the way this value is used we can get away with a wrong value as long | |
| * as this value is: | |
| * | |
| * - a multiple of HZ | |
| * - a divisor of the actual rate | |
| * | |
| * 500000 is a good such cheat value. | |
| * | |
| * The obscure number 1193182 is the same as used by the original i8254 | |
| * time in legacy PC hardware; the chip is never found in AVR32 systems. | |
| */ | |
| #define CLOCK_TICK_RATE 500000 /* Underlying HZ */ | |
| typedef unsigned long cycles_t; | |
| static inline cycles_t get_cycles (void) | |
| { | |
| return 0; | |
| } | |
| #define ARCH_HAS_READ_CURRENT_TIMER | |
| #endif /* __ASM_AVR32_TIMEX_H */ |