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1da177e4 LT |
1 | /****************************************************************************/ |
2 | ||
3 | /* | |
4 | * mcftimer.h -- ColdFire internal TIMER support defines. | |
5 | * | |
6 | * (C) Copyright 1999-2002, Greg Ungerer (gerg@snapgear.com) | |
7 | * (C) Copyright 2000, Lineo Inc. (www.lineo.com) | |
8 | */ | |
9 | ||
10 | /****************************************************************************/ | |
11 | #ifndef mcftimer_h | |
12 | #define mcftimer_h | |
13 | /****************************************************************************/ | |
14 | ||
15 | #include <linux/config.h> | |
16 | ||
17 | /* | |
18 | * Get address specific defines for this ColdFire member. | |
19 | */ | |
20 | #if defined(CONFIG_M5204) || defined(CONFIG_M5206) || defined(CONFIG_M5206e) | |
21 | #define MCFTIMER_BASE1 0x100 /* Base address of TIMER1 */ | |
22 | #define MCFTIMER_BASE2 0x120 /* Base address of TIMER2 */ | |
23 | #elif defined(CONFIG_M5272) | |
24 | #define MCFTIMER_BASE1 0x200 /* Base address of TIMER1 */ | |
25 | #define MCFTIMER_BASE2 0x220 /* Base address of TIMER2 */ | |
26 | #define MCFTIMER_BASE3 0x240 /* Base address of TIMER4 */ | |
27 | #define MCFTIMER_BASE4 0x260 /* Base address of TIMER3 */ | |
28 | #elif defined(CONFIG_M5249) || defined(CONFIG_M5307) || defined(CONFIG_M5407) | |
29 | #define MCFTIMER_BASE1 0x140 /* Base address of TIMER1 */ | |
30 | #define MCFTIMER_BASE2 0x180 /* Base address of TIMER2 */ | |
31 | #endif | |
32 | ||
33 | ||
34 | /* | |
35 | * Define the TIMER register set addresses. | |
36 | */ | |
37 | #define MCFTIMER_TMR 0x00 /* Timer Mode reg (r/w) */ | |
38 | #define MCFTIMER_TRR 0x02 /* Timer Reference (r/w) */ | |
39 | #define MCFTIMER_TCR 0x04 /* Timer Capture reg (r/w) */ | |
40 | #define MCFTIMER_TCN 0x06 /* Timer Counter reg (r/w) */ | |
41 | #define MCFTIMER_TER 0x11 /* Timer Event reg (r/w) */ | |
42 | ||
43 | struct mcftimer { | |
44 | unsigned short tmr; /* Timer Mode reg (r/w) */ | |
45 | unsigned short reserved1; | |
46 | unsigned short trr; /* Timer Reference (r/w) */ | |
47 | unsigned short reserved2; | |
48 | unsigned short tcr; /* Timer Capture reg (r/w) */ | |
49 | unsigned short reserved3; | |
50 | unsigned short tcn; /* Timer Counter reg (r/w) */ | |
51 | unsigned short reserved4; | |
52 | unsigned char reserved5; | |
53 | unsigned char ter; /* Timer Event reg (r/w) */ | |
54 | } __attribute__((packed)); | |
55 | ||
56 | /* | |
57 | * Bit definitions for the Timer Mode Register (TMR). | |
58 | * Register bit flags are common accross ColdFires. | |
59 | */ | |
60 | #define MCFTIMER_TMR_PREMASK 0xff00 /* Prescalar mask */ | |
61 | #define MCFTIMER_TMR_DISCE 0x0000 /* Disable capture */ | |
62 | #define MCFTIMER_TMR_ANYCE 0x00c0 /* Capture any edge */ | |
63 | #define MCFTIMER_TMR_FALLCE 0x0080 /* Capture fallingedge */ | |
64 | #define MCFTIMER_TMR_RISECE 0x0040 /* Capture rising edge */ | |
65 | #define MCFTIMER_TMR_ENOM 0x0020 /* Enable output toggle */ | |
66 | #define MCFTIMER_TMR_DISOM 0x0000 /* Do single output pulse */ | |
67 | #define MCFTIMER_TMR_ENORI 0x0010 /* Enable ref interrupt */ | |
68 | #define MCFTIMER_TMR_DISORI 0x0000 /* Disable ref interrupt */ | |
69 | #define MCFTIMER_TMR_RESTART 0x0008 /* Restart counter */ | |
70 | #define MCFTIMER_TMR_FREERUN 0x0000 /* Free running counter */ | |
71 | #define MCFTIMER_TMR_CLKTIN 0x0006 /* Input clock is TIN */ | |
72 | #define MCFTIMER_TMR_CLK16 0x0004 /* Input clock is /16 */ | |
73 | #define MCFTIMER_TMR_CLK1 0x0002 /* Input clock is /1 */ | |
74 | #define MCFTIMER_TMR_CLKSTOP 0x0000 /* Stop counter */ | |
75 | #define MCFTIMER_TMR_ENABLE 0x0001 /* Enable timer */ | |
76 | #define MCFTIMER_TMR_DISABLE 0x0000 /* Disable timer */ | |
77 | ||
78 | /* | |
79 | * Bit definitions for the Timer Event Registers (TER). | |
80 | */ | |
81 | #define MCFTIMER_TER_CAP 0x01 /* Capture event */ | |
82 | #define MCFTIMER_TER_REF 0x02 /* Refernece event */ | |
83 | ||
84 | /****************************************************************************/ | |
85 | #endif /* mcftimer_h */ |