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-rw-r--r--arch/m68k/include/asm/mcfpit.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/mcfpit.h b/arch/m68k/include/asm/mcfpit.h
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1/****************************************************************************/
2
3/*
4 * mcfpit.h -- ColdFire internal PIT timer support defines.
5 *
6 * (C) Copyright 2003, Greg Ungerer (gerg@snapgear.com)
7 */
8
9/****************************************************************************/
10#ifndef mcfpit_h
11#define mcfpit_h
12/****************************************************************************/
13
14
15/*
16 * Get address specific defines for the 5270/5271, 5280/5282, and 5208.
17 */
18#if defined(CONFIG_M520x)
19#define MCFPIT_BASE1 0x00080000 /* Base address of TIMER1 */
20#define MCFPIT_BASE2 0x00084000 /* Base address of TIMER2 */
21#else
22#define MCFPIT_BASE1 0x00150000 /* Base address of TIMER1 */
23#define MCFPIT_BASE2 0x00160000 /* Base address of TIMER2 */
24#define MCFPIT_BASE3 0x00170000 /* Base address of TIMER3 */
25#define MCFPIT_BASE4 0x00180000 /* Base address of TIMER4 */
26#endif
27
28/*
29 * Define the PIT timer register set addresses.
30 */
31#define MCFPIT_PCSR 0x0 /* PIT control register */
32#define MCFPIT_PMR 0x2 /* PIT modulus register */
33#define MCFPIT_PCNTR 0x4 /* PIT count register */
34
35/*
36 * Bit definitions for the PIT Control and Status register.
37 */
38#define MCFPIT_PCSR_CLK1 0x0000 /* System clock divisor */
39#define MCFPIT_PCSR_CLK2 0x0100 /* System clock divisor */
40#define MCFPIT_PCSR_CLK4 0x0200 /* System clock divisor */
41#define MCFPIT_PCSR_CLK8 0x0300 /* System clock divisor */
42#define MCFPIT_PCSR_CLK16 0x0400 /* System clock divisor */
43#define MCFPIT_PCSR_CLK32 0x0500 /* System clock divisor */
44#define MCFPIT_PCSR_CLK64 0x0600 /* System clock divisor */
45#define MCFPIT_PCSR_CLK128 0x0700 /* System clock divisor */
46#define MCFPIT_PCSR_CLK256 0x0800 /* System clock divisor */
47#define MCFPIT_PCSR_CLK512 0x0900 /* System clock divisor */
48#define MCFPIT_PCSR_CLK1024 0x0a00 /* System clock divisor */
49#define MCFPIT_PCSR_CLK2048 0x0b00 /* System clock divisor */
50#define MCFPIT_PCSR_CLK4096 0x0c00 /* System clock divisor */
51#define MCFPIT_PCSR_CLK8192 0x0d00 /* System clock divisor */
52#define MCFPIT_PCSR_CLK16384 0x0e00 /* System clock divisor */
53#define MCFPIT_PCSR_CLK32768 0x0f00 /* System clock divisor */
54#define MCFPIT_PCSR_DOZE 0x0040 /* Clock run in doze mode */
55#define MCFPIT_PCSR_HALTED 0x0020 /* Clock run in halt mode */
56#define MCFPIT_PCSR_OVW 0x0010 /* Overwrite PIT counter now */
57#define MCFPIT_PCSR_PIE 0x0008 /* Enable PIT interrupt */
58#define MCFPIT_PCSR_PIF 0x0004 /* PIT interrupt flag */
59#define MCFPIT_PCSR_RLD 0x0002 /* Reload counter */
60#define MCFPIT_PCSR_EN 0x0001 /* Enable PIT */
61#define MCFPIT_PCSR_DISABLE 0x0000 /* Disable PIT */
62
63/****************************************************************************/
64#endif /* mcfpit_h */