mcfpit.h (2278B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2/****************************************************************************/ 3 4/* 5 * mcfpit.h -- ColdFire internal PIT timer support defines. 6 * 7 * (C) Copyright 2003, Greg Ungerer (gerg@snapgear.com) 8 */ 9 10/****************************************************************************/ 11#ifndef mcfpit_h 12#define mcfpit_h 13/****************************************************************************/ 14 15/* 16 * Define the PIT timer register address offsets. 17 */ 18#define MCFPIT_PCSR 0x0 /* PIT control register */ 19#define MCFPIT_PMR 0x2 /* PIT modulus register */ 20#define MCFPIT_PCNTR 0x4 /* PIT count register */ 21 22/* 23 * Bit definitions for the PIT Control and Status register. 24 */ 25#define MCFPIT_PCSR_CLK1 0x0000 /* System clock divisor */ 26#define MCFPIT_PCSR_CLK2 0x0100 /* System clock divisor */ 27#define MCFPIT_PCSR_CLK4 0x0200 /* System clock divisor */ 28#define MCFPIT_PCSR_CLK8 0x0300 /* System clock divisor */ 29#define MCFPIT_PCSR_CLK16 0x0400 /* System clock divisor */ 30#define MCFPIT_PCSR_CLK32 0x0500 /* System clock divisor */ 31#define MCFPIT_PCSR_CLK64 0x0600 /* System clock divisor */ 32#define MCFPIT_PCSR_CLK128 0x0700 /* System clock divisor */ 33#define MCFPIT_PCSR_CLK256 0x0800 /* System clock divisor */ 34#define MCFPIT_PCSR_CLK512 0x0900 /* System clock divisor */ 35#define MCFPIT_PCSR_CLK1024 0x0a00 /* System clock divisor */ 36#define MCFPIT_PCSR_CLK2048 0x0b00 /* System clock divisor */ 37#define MCFPIT_PCSR_CLK4096 0x0c00 /* System clock divisor */ 38#define MCFPIT_PCSR_CLK8192 0x0d00 /* System clock divisor */ 39#define MCFPIT_PCSR_CLK16384 0x0e00 /* System clock divisor */ 40#define MCFPIT_PCSR_CLK32768 0x0f00 /* System clock divisor */ 41#define MCFPIT_PCSR_DOZE 0x0040 /* Clock run in doze mode */ 42#define MCFPIT_PCSR_HALTED 0x0020 /* Clock run in halt mode */ 43#define MCFPIT_PCSR_OVW 0x0010 /* Overwrite PIT counter now */ 44#define MCFPIT_PCSR_PIE 0x0008 /* Enable PIT interrupt */ 45#define MCFPIT_PCSR_PIF 0x0004 /* PIT interrupt flag */ 46#define MCFPIT_PCSR_RLD 0x0002 /* Reload counter */ 47#define MCFPIT_PCSR_EN 0x0001 /* Enable PIT */ 48#define MCFPIT_PCSR_DISABLE 0x0000 /* Disable PIT */ 49 50/****************************************************************************/ 51#endif /* mcfpit_h */