/arch/arm/mach-l7200/include/mach/gp_timers.h
C++ Header | 42 lines | 22 code | 5 blank | 15 comment | 0 complexity | 9d38c8496207e6e3332447d0877d39c7 MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
1/*
2 * arch/arm/mach-l7200/include/mach/gp_timers.h
3 *
4 * Copyright (C) 2000 Steve Hill (sjhill@cotw.com)
5 *
6 * Changelog:
7 * 07-28-2000 SJH Created file
8 * 08-02-2000 SJH Used structure for registers
9 */
10#ifndef _ASM_ARCH_GPTIMERS_H
11#define _ASM_ARCH_GPTIMERS_H
12
13#include <mach/hardware.h>
14
15/*
16 * Layout of L7200 general purpose timer registers
17 */
18struct GPT_Regs {
19 unsigned int TIMERLOAD;
20 unsigned int TIMERVALUE;
21 unsigned int TIMERCONTROL;
22 unsigned int TIMERCLEAR;
23};
24
25#define GPT_BASE (IO_BASE_2 + 0x3000)
26#define l7200_timer1_regs ((volatile struct GPT_Regs *) (GPT_BASE))
27#define l7200_timer2_regs ((volatile struct GPT_Regs *) (GPT_BASE + 0x20))
28
29/*
30 * General register values
31 */
32#define GPT_PRESCALE_1 0x00000000
33#define GPT_PRESCALE_16 0x00000004
34#define GPT_PRESCALE_256 0x00000008
35#define GPT_MODE_FREERUN 0x00000000
36#define GPT_MODE_PERIODIC 0x00000040
37#define GPT_ENABLE 0x00000080
38#define GPT_BZTOG 0x00000100
39#define GPT_BZMOD 0x00000200
40#define GPT_LOAD_MASK 0x0000ffff
41
42#endif