X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=include%2Fasm-mips%2Ftimex.h;h=6529704aa73ae0c3cee7789648fb5328b3948168;hb=57b1494d2ba544c62673234da6115c21fac27ffc;hp=87c68ae76ff8f109ada1eb6d6664542cc86e2a5b;hpb=4fa435018d740cb83d74c92306aa1f796da91ddd;p=linux-2.6-omap-h63xx.git diff --git a/include/asm-mips/timex.h b/include/asm-mips/timex.h index 87c68ae76ff..6529704aa73 100644 --- a/include/asm-mips/timex.h +++ b/include/asm-mips/timex.h @@ -13,27 +13,12 @@ #include /* - * 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 unfortunately also found in a - * bunch of MIPS systems. The last remaining user of the i8254 for the - * timer interrupt is the RM200; it's a very standard system so there is - * no reason to make this a separate architecture. + * This is the clock rate of the i8253 PIT. A MIPS system may not have + * a PIT by the symbol is used all over the kernel including some APIs. + * So keeping it defined to the number for the PIT is the only sane thing + * for now. */ - -#include +#define CLOCK_TICK_RATE 1193182 /* * Standard way to access the cycle counter. @@ -50,7 +35,7 @@ typedef unsigned int cycles_t; static inline cycles_t get_cycles(void) { - return read_c0_count(); + return 0; } #endif /* __KERNEL__ */