[people/ms/u-boot.git] / include / asm-arm / arch-at91 / at91_pit.h

/*
 * [origin: Linux kernel include/asm-arm/arch-at91/at91_pit.h]
 *
 * Copyright (C) 2007 Andrew Victor
 * Copyright (C) 2007 Atmel Corporation.
 *
 * Periodic Interval Timer (PIT) - System peripherals regsters.
 * Based on AT91SAM9261 datasheet revision D.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#ifndef AT91_PIT_H
#define AT91_PIT_H

typedef struct at91_pit {
	u32	mr;	/* 0x00 Mode Register */
	u32	sr;	/* 0x04 Status Register */
	u32	pivr;	/* 0x08 Periodic Interval Value Register */
	u32	piir;	/* 0x0C Periodic Interval Image Register */
} at91_pit_t;

#define		AT91_PIT_MR_IEN		0x02000000
#define		AT91_PIT_MR_EN		0x01000000
#define		AT91_PIT_MR_PIV_MASK	(x & 0x000fffff)
#define		AT91_PIT_MR_PIV(x)	(x & AT91_PIT_MR_PIV_MASK)

#ifdef CONFIG_AT91_LEGACY

#define AT91_PIT_MR		(AT91_PIT + 0x00)	/* Mode Register */
#define		AT91_PIT_PITIEN		(1 << 25)		/* Timer Interrupt Enable */
#define		AT91_PIT_PITEN		(1 << 24)		/* Timer Enabled */
#define		AT91_PIT_PIV		(0xfffff)		/* Periodic Interval Value */

#define AT91_PIT_SR		(AT91_PIT + 0x04)	/* Status Register */
#define		AT91_PIT_PITS		(1 << 0)		/* Timer Status */

#define AT91_PIT_PIVR		(AT91_PIT + 0x08)	/* Periodic Interval Value Register */
#define AT91_PIT_PIIR		(AT91_PIT + 0x0c)	/* Periodic Interval Image Register */
#define		AT91_PIT_PICNT		(0xfff << 20)		/* Interval Counter */
#define		AT91_PIT_CPIV		(0xfffff)		/* Inverval Value */

#endif /* CONFIG_AT91_LEGACY */
#endif
Commit	Line	Data
6d1dbbbf	1	/*
9606b3c8 SP	2	* [origin: Linux kernel include/asm-arm/arch-at91/at91_pit.h]
	3	*
	4	* Copyright (C) 2007 Andrew Victor
	5	* Copyright (C) 2007 Atmel Corporation.
6d1dbbbf SP	6	*
	7	* Periodic Interval Timer (PIT) - System peripherals regsters.
	8	* Based on AT91SAM9261 datasheet revision D.
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License as published by
	12	* the Free Software Foundation; either version 2 of the License, or
	13	* (at your option) any later version.
	14	*/
	15
	16	#ifndef AT91_PIT_H
	17	#define AT91_PIT_H
	18
5d8e359c JS	19	typedef struct at91_pit {
	20	u32 mr; /* 0x00 Mode Register */
	21	u32 sr; /* 0x04 Status Register */
	22	u32 pivr; /* 0x08 Periodic Interval Value Register */
	23	u32 piir; /* 0x0C Periodic Interval Image Register */
	24	} at91_pit_t;
	25
	26	#define AT91_PIT_MR_IEN 0x02000000
	27	#define AT91_PIT_MR_EN 0x01000000
	28	#define AT91_PIT_MR_PIV_MASK (x & 0x000fffff)
	29	#define AT91_PIT_MR_PIV(x) (x & AT91_PIT_MR_PIV_MASK)
	30
	31	#ifdef CONFIG_AT91_LEGACY
	32
6d1dbbbf SP	33	#define AT91_PIT_MR (AT91_PIT + 0x00) /* Mode Register */
	34	#define AT91_PIT_PITIEN (1 << 25) /* Timer Interrupt Enable */
	35	#define AT91_PIT_PITEN (1 << 24) /* Timer Enabled */
	36	#define AT91_PIT_PIV (0xfffff) /* Periodic Interval Value */
	37
	38	#define AT91_PIT_SR (AT91_PIT + 0x04) /* Status Register */
	39	#define AT91_PIT_PITS (1 << 0) /* Timer Status */
	40
	41	#define AT91_PIT_PIVR (AT91_PIT + 0x08) /* Periodic Interval Value Register */
	42	#define AT91_PIT_PIIR (AT91_PIT + 0x0c) /* Periodic Interval Image Register */
	43	#define AT91_PIT_PICNT (0xfff << 20) /* Interval Counter */
	44	#define AT91_PIT_CPIV (0xfffff) /* Inverval Value */
	45
5d8e359c	46	#endif /* CONFIG_AT91_LEGACY */
6d1dbbbf	47	#endif