1/* 2 * apb_timer.h: Driver for Langwell APB timer based on Synopsis DesignWare 3 * 4 * (C) Copyright 2009 Intel Corporation 5 * Author: Jacob Pan (jacob.jun.pan@intel.com) 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; version 2 10 * of the License. 11 * 12 * Note: 13 */ 14 15#ifndef ASM_X86_APBT_H 16#define ASM_X86_APBT_H 17#include <linux/sfi.h> 18 19#ifdef CONFIG_APB_TIMER 20 21/* default memory mapped register base */ 22#define LNW_SCU_ADDR 0xFF100000 23#define LNW_EXT_TIMER_OFFSET 0x1B800 24#define APBT_DEFAULT_BASE (LNW_SCU_ADDR+LNW_EXT_TIMER_OFFSET) 25#define LNW_EXT_TIMER_PGOFFSET 0x800 26 27/* APBT clock speed range from PCLK to fabric base, 25-100MHz */ 28#define APBT_MAX_FREQ 50000000 29#define APBT_MIN_FREQ 1000000 30#define APBT_MMAP_SIZE 1024 31 32#define APBT_DEV_USED 1 33 34extern void apbt_time_init(void); 35extern unsigned long apbt_quick_calibrate(void); 36extern int arch_setup_apbt_irqs(int irq, int trigger, int mask, int cpu); 37extern void apbt_setup_secondary_clock(void); 38 39extern struct sfi_timer_table_entry *sfi_get_mtmr(int hint); 40extern void sfi_free_mtmr(struct sfi_timer_table_entry *mtmr); 41extern int sfi_mtimer_num; 42 43#else /* CONFIG_APB_TIMER */ 44 45static inline unsigned long apbt_quick_calibrate(void) {return 0; } 46static inline void apbt_time_init(void) { } 47 48#endif 49#endif /* ASM_X86_APBT_H */ 50