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mcftimer.h
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1 /****************************************************************************/
2 
3 /*
4  * mcftimer.h -- ColdFire internal TIMER support defines.
5  *
6  * (C) Copyright 1999-2006, Greg Ungerer <[email protected]>
7  * (C) Copyright 2000, Lineo Inc. (www.lineo.com)
8  */
9 
10 /****************************************************************************/
11 #ifndef mcftimer_h
12 #define mcftimer_h
13 /****************************************************************************/
14 
15 /*
16  * Define the TIMER register set addresses.
17  */
18 #define MCFTIMER_TMR 0x00 /* Timer Mode reg (r/w) */
19 #define MCFTIMER_TRR 0x04 /* Timer Reference (r/w) */
20 #define MCFTIMER_TCR 0x08 /* Timer Capture reg (r/w) */
21 #define MCFTIMER_TCN 0x0C /* Timer Counter reg (r/w) */
22 #if defined(CONFIG_M532x) || defined(CONFIG_M5441x)
23 #define MCFTIMER_TER 0x03 /* Timer Event reg (r/w) */
24 #else
25 #define MCFTIMER_TER 0x11 /* Timer Event reg (r/w) */
26 #endif
27 
28 /*
29  * Bit definitions for the Timer Mode Register (TMR).
30  * Register bit flags are common across ColdFires.
31  */
32 #define MCFTIMER_TMR_PREMASK 0xff00 /* Prescalar mask */
33 #define MCFTIMER_TMR_DISCE 0x0000 /* Disable capture */
34 #define MCFTIMER_TMR_ANYCE 0x00c0 /* Capture any edge */
35 #define MCFTIMER_TMR_FALLCE 0x0080 /* Capture fallingedge */
36 #define MCFTIMER_TMR_RISECE 0x0040 /* Capture rising edge */
37 #define MCFTIMER_TMR_ENOM 0x0020 /* Enable output toggle */
38 #define MCFTIMER_TMR_DISOM 0x0000 /* Do single output pulse */
39 #define MCFTIMER_TMR_ENORI 0x0010 /* Enable ref interrupt */
40 #define MCFTIMER_TMR_DISORI 0x0000 /* Disable ref interrupt */
41 #define MCFTIMER_TMR_RESTART 0x0008 /* Restart counter */
42 #define MCFTIMER_TMR_FREERUN 0x0000 /* Free running counter */
43 #define MCFTIMER_TMR_CLKTIN 0x0006 /* Input clock is TIN */
44 #define MCFTIMER_TMR_CLK16 0x0004 /* Input clock is /16 */
45 #define MCFTIMER_TMR_CLK1 0x0002 /* Input clock is /1 */
46 #define MCFTIMER_TMR_CLKSTOP 0x0000 /* Stop counter */
47 #define MCFTIMER_TMR_ENABLE 0x0001 /* Enable timer */
48 #define MCFTIMER_TMR_DISABLE 0x0000 /* Disable timer */
49 
50 /*
51  * Bit definitions for the Timer Event Registers (TER).
52  */
53 #define MCFTIMER_TER_CAP 0x01 /* Capture event */
54 #define MCFTIMER_TER_REF 0x02 /* Refernece event */
55 
56 /****************************************************************************/
57 #endif /* mcftimer_h */