2005-04-16 18:20:36 -04:00
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/*
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* linux/include/asm-arm/arch-l7200/gp_timers.h
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*
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* Copyright (C) 2000 Steve Hill (sjhill@cotw.com)
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*
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* Changelog:
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* 07-28-2000 SJH Created file
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* 08-02-2000 SJH Used structure for registers
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*/
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#ifndef _ASM_ARCH_GPTIMERS_H
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#define _ASM_ARCH_GPTIMERS_H
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2005-11-16 09:51:20 -05:00
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#include <asm/hardware.h>
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2005-04-16 18:20:36 -04:00
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/*
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* Layout of L7200 general purpose timer registers
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*/
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struct GPT_Regs {
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unsigned int TIMERLOAD;
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unsigned int TIMERVALUE;
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unsigned int TIMERCONTROL;
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unsigned int TIMERCLEAR;
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};
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#define GPT_BASE (IO_BASE_2 + 0x3000)
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#define l7200_timer1_regs ((volatile struct GPT_Regs *) (GPT_BASE))
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#define l7200_timer2_regs ((volatile struct GPT_Regs *) (GPT_BASE + 0x20))
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/*
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* General register values
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*/
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#define GPT_PRESCALE_1 0x00000000
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#define GPT_PRESCALE_16 0x00000004
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#define GPT_PRESCALE_256 0x00000008
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#define GPT_MODE_FREERUN 0x00000000
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#define GPT_MODE_PERIODIC 0x00000040
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#define GPT_ENABLE 0x00000080
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#define GPT_BZTOG 0x00000100
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#define GPT_BZMOD 0x00000200
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#define GPT_LOAD_MASK 0x0000ffff
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#endif
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