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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-arm/] [arch-omaha/] [timex.h] - Rev 1774
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/* * linux/include/asm-arm/arch-omaha/timex.h * * Omaha architecture timex specifications * * Copyright (C) 1999-2002 ARM Limited * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* * Always runs at (almost) 1Mhz. * * Time is derived as follows * * CLOCK_TICK_RATE = ((FCLK / 4) / (Prescaler + 1)) / 2 * * Where FCLK = CPU Clock Rate = 133 MHz * Prescaler = 16 * * Therefore: * CLOCK_TICK_RATE = (33.25 MHz / 17) / 2 * = 977941 Hz */ #define CLOCK_TICK_RATE (977941)
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