64 lines
2.6 KiB
C
64 lines
2.6 KiB
C
|
/****************************************************************************/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* mcfpit.h -- ColdFire internal PIT timer support defines.
|
||
|
|
*
|
||
|
|
* (C) Copyright 2003, Greg Ungerer (gerg@snapgear.com)
|
||
|
|
*/
|
||
|
|
|
||
|
|
/****************************************************************************/
|
||
|
|
#ifndef mcfpit_h
|
||
|
|
#define mcfpit_h
|
||
|
|
/****************************************************************************/
|
||
|
|
|
||
|
|
#include <linux/config.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Get address specific defines for the 5270/5271 and 5280/5282.
|
||
|
|
*/
|
||
|
|
#define MCFPIT_BASE1 0x00150000 /* Base address of TIMER1 */
|
||
|
|
#define MCFPIT_BASE2 0x00160000 /* Base address of TIMER2 */
|
||
|
|
#define MCFPIT_BASE3 0x00170000 /* Base address of TIMER3 */
|
||
|
|
#define MCFPIT_BASE4 0x00180000 /* Base address of TIMER4 */
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Define the PIT timer register set addresses.
|
||
|
|
*/
|
||
|
|
struct mcfpit {
|
||
|
|
unsigned short pcsr; /* PIT control and status */
|
||
|
|
unsigned short pmr; /* PIT modulus register */
|
||
|
|
unsigned short pcntr; /* PIT count register */
|
||
|
|
} __attribute__((packed));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Bit definitions for the PIT Control and Status register.
|
||
|
|
*/
|
||
|
|
#define MCFPIT_PCSR_CLK1 0x0000 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK2 0x0100 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK4 0x0200 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK8 0x0300 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK16 0x0400 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK32 0x0500 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK64 0x0600 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK128 0x0700 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK256 0x0800 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK512 0x0900 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK1024 0x0a00 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK2048 0x0b00 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK4096 0x0c00 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK8192 0x0d00 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK16384 0x0e00 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_CLK32768 0x0f00 /* System clock divisor */
|
||
|
|
#define MCFPIT_PCSR_DOZE 0x0040 /* Clock run in doze mode */
|
||
|
|
#define MCFPIT_PCSR_HALTED 0x0020 /* Clock run in halt mode */
|
||
|
|
#define MCFPIT_PCSR_OVW 0x0010 /* Overwrite PIT counter now */
|
||
|
|
#define MCFPIT_PCSR_PIE 0x0008 /* Enable PIT interrupt */
|
||
|
|
#define MCFPIT_PCSR_PIF 0x0004 /* PIT interrupt flag */
|
||
|
|
#define MCFPIT_PCSR_RLD 0x0002 /* Reload counter */
|
||
|
|
#define MCFPIT_PCSR_EN 0x0001 /* Enable PIT */
|
||
|
|
#define MCFPIT_PCSR_DISABLE 0x0000 /* Disable PIT */
|
||
|
|
|
||
|
|
/****************************************************************************/
|
||
|
|
#endif /* mcfpit_h */
|