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/*
* mcftimer.h -- ColdFire internal TIMER support defines.
*
* Based on mcftimer.h of uCLinux distribution:
* (C) Copyright 1999-2002, Greg Ungerer (gerg@snapgear.com)
* (C) Copyright 2000, Lineo Inc. (www.lineo.com)
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/****************************************************************************/
#ifndef mcftimer_h
#define mcftimer_h
/****************************************************************************/
#include <linux/config.h>
/*
* Get address specific defines for this ColdFire member.
*/
#if defined(CONFIG_M5204) || defined(CONFIG_M5206) || defined(CONFIG_M5206e)
#define MCFTIMER_BASE1 0x100 /* Base address of TIMER1 */
#define MCFTIMER_BASE2 0x120 /* Base address of TIMER2 */
#elif defined(CONFIG_M5272)
#define MCFTIMER_BASE1 0x200 /* Base address of TIMER1 */
#define MCFTIMER_BASE2 0x220 /* Base address of TIMER2 */
#define MCFTIMER_BASE3 0x240 /* Base address of TIMER4 */
#define MCFTIMER_BASE4 0x260 /* Base address of TIMER3 */
#elif defined(CONFIG_M5249) || defined(CONFIG_M5307) || defined(CONFIG_M5407)
#define MCFTIMER_BASE1 0x140 /* Base address of TIMER1 */
#define MCFTIMER_BASE2 0x180 /* Base address of TIMER2 */
#elif defined(CONFIG_M5282) | defined(CONFIG_M5271)
#define MCFTIMER_BASE1 0x150000 /* Base address of TIMER1 */
#define MCFTIMER_BASE2 0x160000 /* Base address of TIMER2 */
#define MCFTIMER_BASE3 0x170000 /* Base address of TIMER4 */
#define MCFTIMER_BASE4 0x180000 /* Base address of TIMER3 */
#endif
/*
* Define the TIMER register set addresses.
*/
#define MCFTIMER_TMR 0x00 /* Timer Mode reg (r/w) */
#define MCFTIMER_TRR 0x02 /* Timer Reference (r/w) */
#define MCFTIMER_TCR 0x04 /* Timer Capture reg (r/w) */
#define MCFTIMER_TCN 0x06 /* Timer Counter reg (r/w) */
#define MCFTIMER_TER 0x11 /* Timer Event reg (r/w) */
/*
* Define the TIMER register set addresses for 5282.
*/
#define MCFTIMER_PCSR 0
#define MCFTIMER_PMR 1
#define MCFTIMER_PCNTR 2
/*
* Bit definitions for the Timer Mode Register (TMR).
* Register bit flags are common accross ColdFires.
*/
#define MCFTIMER_TMR_PREMASK 0xff00 /* Prescalar mask */
#define MCFTIMER_TMR_DISCE 0x0000 /* Disable capture */
#define MCFTIMER_TMR_ANYCE 0x00c0 /* Capture any edge */
#define MCFTIMER_TMR_FALLCE 0x0080 /* Capture fallingedge */
#define MCFTIMER_TMR_RISECE 0x0040 /* Capture rising edge */
#define MCFTIMER_TMR_ENOM 0x0020 /* Enable output toggle */
#define MCFTIMER_TMR_DISOM 0x0000 /* Do single output pulse */
#define MCFTIMER_TMR_ENORI 0x0010 /* Enable ref interrupt */
#define MCFTIMER_TMR_DISORI 0x0000 /* Disable ref interrupt */
#define MCFTIMER_TMR_RESTART 0x0008 /* Restart counter */
#define MCFTIMER_TMR_FREERUN 0x0000 /* Free running counter */
#define MCFTIMER_TMR_CLKTIN 0x0006 /* Input clock is TIN */
#define MCFTIMER_TMR_CLK16 0x0004 /* Input clock is /16 */
#define MCFTIMER_TMR_CLK1 0x0002 /* Input clock is /1 */
#define MCFTIMER_TMR_CLKSTOP 0x0000 /* Stop counter */
#define MCFTIMER_TMR_ENABLE 0x0001 /* Enable timer */
#define MCFTIMER_TMR_DISABLE 0x0000 /* Disable timer */
/*
* Bit definitions for the Timer Event Registers (TER).
*/
#define MCFTIMER_TER_CAP 0x01 /* Capture event */
#define MCFTIMER_TER_REF 0x02 /* Refernece event */
/*
* Bit definitions for the 5282 PIT Control and Status Register (PCSR).
*/
#define MCFTIMER_PCSR_EN 0x0001
#define MCFTIMER_PCSR_RLD 0x0002
#define MCFTIMER_PCSR_PIF 0x0004
#define MCFTIMER_PCSR_PIE 0x0008
#define MCFTIMER_PCSR_OVW 0x0010
#define MCFTIMER_PCSR_HALTED 0x0020
#define MCFTIMER_PCSR_DOZE 0x0040
/****************************************************************************/
/* New Timer structure */
/****************************************************************************/
/* DMA Timer module registers */
typedef struct dtimer_ctrl {
u16 tmr; /* 0x00 Mode register */
u8 txmr; /* 0x02 Extended Mode register */
u8 ter; /* 0x03 Event register */
u32 trr; /* 0x04 Reference register */
u32 tcr; /* 0x08 Capture register */
u32 tcn; /* 0x0C Counter register */
} dtmr_t;
/*Programmable Interrupt Timer */
typedef struct pit_ctrl {
u16 pcsr; /* 0x00 Control and Status Register */
u16 pmr; /* 0x02 Modulus Register */
u16 pcntr; /* 0x04 Count Register */
} pit_t;
/*********************************************************************
* DMA Timers (DTIM)
*********************************************************************/
/* Bit definitions and macros for DTMR */
#define DTIM_DTMR_RST (0x0001) /* Reset */
#define DTIM_DTMR_CLK(x) (((x)&0x0003)<<1) /* Input clock source */
#define DTIM_DTMR_FRR (0x0008) /* Free run/restart */
#define DTIM_DTMR_ORRI (0x0010) /* Output reference request/interrupt enable */
#define DTIM_DTMR_OM (0x0020) /* Output Mode */
#define DTIM_DTMR_CE(x) (((x)&0x0003)<<6) /* Capture Edge */
#define DTIM_DTMR_PS(x) (((x)&0x00FF)<<8) /* Prescaler value */
#define DTIM_DTMR_RST_EN (0x0001)
#define DTIM_DTMR_RST_RST (0x0000)
#define DTIM_DTMR_CE_ANY (0x00C0)
#define DTIM_DTMR_CE_FALL (0x0080)
#define DTIM_DTMR_CE_RISE (0x0040)
#define DTIM_DTMR_CE_NONE (0x0000)
#define DTIM_DTMR_CLK_DTIN (0x0006)
#define DTIM_DTMR_CLK_DIV16 (0x0004)
#define DTIM_DTMR_CLK_DIV1 (0x0002)
#define DTIM_DTMR_CLK_STOP (0x0000)
/* Bit definitions and macros for DTXMR */
#define DTIM_DTXMR_MODE16 (0x01) /* Increment Mode */
#define DTIM_DTXMR_DMAEN (0x80) /* DMA request */
/* Bit definitions and macros for DTER */
#define DTIM_DTER_CAP (0x01) /* Capture event */
#define DTIM_DTER_REF (0x02) /* Output reference event */
/*********************************************************************
*
* Programmable Interrupt Timer Modules (PIT)
*
*********************************************************************/
/* Bit definitions and macros for PCSR */
#define PIT_PCSR_EN (0x0001)
#define PIT_PCSR_RLD (0x0002)
#define PIT_PCSR_PIF (0x0004)
#define PIT_PCSR_PIE (0x0008)
#define PIT_PCSR_OVW (0x0010)
#define PIT_PCSR_HALTED (0x0020)
#define PIT_PCSR_DOZE (0x0040)
#define PIT_PCSR_PRE(x) (((x)&0x000F)<<8)
/* Bit definitions and macros for PMR */
#define PIT_PMR_PM(x) (x)
/* Bit definitions and macros for PCNTR */
#define PIT_PCNTR_PC(x) (x)
/****************************************************************************/
#endif /* mcftimer_h */
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