/* * arch/arm/mach-realview/include/mach/timex.h * * RealView architecture timex specifications * * Copyright (C) 2003 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 */ #define CLOCK_TICK_RATE (50000000 / 16) #if defined(CONFIG_MACH_REALVIEW_PB11MP) || defined(CONFIG_MACH_REALVIEW_PB1176) static inline unsigned long realview_get_arm11_cp15_ccnt(void) { unsigned long cycles; /* Read CP15 CCNT register. */ asm volatile ("mrc p15, 0, %0, c15, c12, 1" : "=r" (cycles)); return cycles; } #define get_cycles realview_get_arm11_cp15_ccnt #elif defined(CONFIG_MACH_REALVIEW_PBA8) static inline unsigned long realview_get_a8_cp15_ccnt(void) { unsigned long cycles; /* Read CP15 CCNT register. */ asm volatile ("mrc p15, 0, %0, c9, c13, 0" : "=r" (cycles)); return cycles; } #define get_cycles realview_get_a8_cp15_ccnt #endif