mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-28 07:31:15 +00:00
47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/*
|
|
* [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) (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
|