1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * apb_timer.h: Driver for Langwell APB timer based on Synopsis DesignWare
4 *
5 * (C) Copyright 2009 Intel Corporation
6 * Author: Jacob Pan (jacob.jun.pan@intel.com)
7 *
8 * Note:
9 */
10
11#ifndef ASM_X86_APBT_H
12#define ASM_X86_APBT_H
13#include <linux/sfi.h>
14
15#ifdef CONFIG_APB_TIMER
16
17/* default memory mapped register base */
18#define LNW_SCU_ADDR           0xFF100000
19#define LNW_EXT_TIMER_OFFSET   0x1B800
20#define APBT_DEFAULT_BASE      (LNW_SCU_ADDR+LNW_EXT_TIMER_OFFSET)
21#define LNW_EXT_TIMER_PGOFFSET         0x800
22
23/* APBT clock speed range from PCLK to fabric base, 25-100MHz */
24#define APBT_MAX_FREQ          50000000
25#define APBT_MIN_FREQ          1000000
26#define APBT_MMAP_SIZE         1024
27
28extern void apbt_time_init(void);
29extern void apbt_setup_secondary_clock(void);
30
31extern struct sfi_timer_table_entry *sfi_get_mtmr(int hint);
32extern void sfi_free_mtmr(struct sfi_timer_table_entry *mtmr);
33extern int sfi_mtimer_num;
34
35#else /* CONFIG_APB_TIMER */
36
37static inline void apbt_time_init(void) { }
38
39#endif
40#endif /* ASM_X86_APBT_H */
41