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1da177e4 LT |
1 | /* |
2 | * linux/include/asm-arm/arch-l7200/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 <asm/arch/hardware.h> | |
14 | ||
15 | /* | |
16 | * Layout of L7200 general purpose timer registers | |
17 | */ | |
18 | struct 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 |