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Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-m68k/timer.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/include/asm-m68k/timer.h b/include/asm-m68k/timer.h new file mode 100644 index 0000000..d8f4e2a --- /dev/null +++ b/include/asm-m68k/timer.h @@ -0,0 +1,104 @@ +/* + * timer.h -- ColdFire internal TIMER support defines. + * + * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. + * TsiChung Liew (Tsi-Chung.Liew@freescale.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 timer_h +#define timer_h +/****************************************************************************/ + +/****************************************************************************/ +/* 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 /* timer_h */ |