diff options
Diffstat (limited to 'include/asm-sparc/mostek.h')
| -rw-r--r-- | include/asm-sparc/mostek.h | 173 |
1 files changed, 5 insertions, 168 deletions
diff --git a/include/asm-sparc/mostek.h b/include/asm-sparc/mostek.h index c35c916..5b9f7fe 100644 --- a/include/asm-sparc/mostek.h +++ b/include/asm-sparc/mostek.h @@ -1,171 +1,8 @@ -/* - * mostek.h: Describes the various Mostek time of day clock registers. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu) - * Added intersil code 05/25/98 Chris Davis (cdavis@cois.on.ca) - */ - -#ifndef _SPARC_MOSTEK_H -#define _SPARC_MOSTEK_H - -#include <asm/idprom.h> -#include <asm/io.h> - -/* M48T02 Register Map (adapted from Sun NVRAM/Hostid FAQ) - * - * Data - * Address Function - * Bit 7 Bit 6 Bit 5 Bit 4Bit 3 Bit 2 Bit 1 Bit 0 - * 7ff - - - - - - - - Year 00-99 - * 7fe 0 0 0 - - - - - Month 01-12 - * 7fd 0 0 - - - - - - Date 01-31 - * 7fc 0 FT 0 0 0 - - - Day 01-07 - * 7fb KS 0 - - - - - - Hours 00-23 - * 7fa 0 - - - - - - - Minutes 00-59 - * 7f9 ST - - - - - - - Seconds 00-59 - * 7f8 W R S - - - - - Control - * - * * ST is STOP BIT - * * W is WRITE BIT - * * R is READ BIT - * * S is SIGN BIT - * * FT is FREQ TEST BIT - * * KS is KICK START BIT - */ - -/* The Mostek 48t02 real time clock and NVRAM chip. The registers - * other than the control register are in binary coded decimal. Some - * control bits also live outside the control register. - */ -#define mostek_read(_addr) readb(_addr) -#define mostek_write(_addr,_val) writeb(_val, _addr) -#define MOSTEK_EEPROM 0x0000UL -#define MOSTEK_IDPROM 0x07d8UL -#define MOSTEK_CREG 0x07f8UL -#define MOSTEK_SEC 0x07f9UL -#define MOSTEK_MIN 0x07faUL -#define MOSTEK_HOUR 0x07fbUL -#define MOSTEK_DOW 0x07fcUL -#define MOSTEK_DOM 0x07fdUL -#define MOSTEK_MONTH 0x07feUL -#define MOSTEK_YEAR 0x07ffUL - -struct mostek48t02 { - volatile char eeprom[2008]; /* This is the eeprom, don't touch! */ - struct idprom idprom; /* The idprom lives here. */ - volatile unsigned char creg; /* Control register */ - volatile unsigned char sec; /* Seconds (0-59) */ - volatile unsigned char min; /* Minutes (0-59) */ - volatile unsigned char hour; /* Hour (0-23) */ - volatile unsigned char dow; /* Day of the week (1-7) */ - volatile unsigned char dom; /* Day of the month (1-31) */ - volatile unsigned char month; /* Month of year (1-12) */ - volatile unsigned char year; /* Year (0-99) */ -}; - -extern spinlock_t mostek_lock; -extern void __iomem *mstk48t02_regs; - -/* Control register values. */ -#define MSTK_CREG_WRITE 0x80 /* Must set this before placing values. */ -#define MSTK_CREG_READ 0x40 /* Stop updates to allow a clean read. */ -#define MSTK_CREG_SIGN 0x20 /* Slow/speed clock in calibration mode. */ - -/* Control bits that live in the other registers. */ -#define MSTK_STOP 0x80 /* Stop the clock oscillator. (sec) */ -#define MSTK_KICK_START 0x80 /* Kick start the clock chip. (hour) */ -#define MSTK_FREQ_TEST 0x40 /* Frequency test mode. (day) */ - -#define MSTK_YEAR_ZERO 1968 /* If year reg has zero, it is 1968. */ -#define MSTK_CVT_YEAR(yr) ((yr) + MSTK_YEAR_ZERO) - -/* Masks that define how much space each value takes up. */ -#define MSTK_SEC_MASK 0x7f -#define MSTK_MIN_MASK 0x7f -#define MSTK_HOUR_MASK 0x3f -#define MSTK_DOW_MASK 0x07 -#define MSTK_DOM_MASK 0x3f -#define MSTK_MONTH_MASK 0x1f -#define MSTK_YEAR_MASK 0xffU - -/* Binary coded decimal conversion macros. */ -#define MSTK_REGVAL_TO_DECIMAL(x) (((x) & 0x0F) + 0x0A * ((x) >> 0x04)) -#define MSTK_DECIMAL_TO_REGVAL(x) ((((x) / 0x0A) << 0x04) + ((x) % 0x0A)) - -/* Generic register set and get macros for internal use. */ -#define MSTK_GET(regs,var,mask) (MSTK_REGVAL_TO_DECIMAL(((struct mostek48t02 *)regs)->var & MSTK_ ## mask ## _MASK)) -#define MSTK_SET(regs,var,value,mask) do { ((struct mostek48t02 *)regs)->var &= ~(MSTK_ ## mask ## _MASK); ((struct mostek48t02 *)regs)->var |= MSTK_DECIMAL_TO_REGVAL(value) & (MSTK_ ## mask ## _MASK); } while (0) - -/* Macros to make register access easier on our fingers. These give you - * the decimal value of the register requested if applicable. You pass - * the a pointer to a 'struct mostek48t02'. - */ -#define MSTK_REG_CREG(regs) (((struct mostek48t02 *)regs)->creg) -#define MSTK_REG_SEC(regs) MSTK_GET(regs,sec,SEC) -#define MSTK_REG_MIN(regs) MSTK_GET(regs,min,MIN) -#define MSTK_REG_HOUR(regs) MSTK_GET(regs,hour,HOUR) -#define MSTK_REG_DOW(regs) MSTK_GET(regs,dow,DOW) -#define MSTK_REG_DOM(regs) MSTK_GET(regs,dom,DOM) -#define MSTK_REG_MONTH(regs) MSTK_GET(regs,month,MONTH) -#define MSTK_REG_YEAR(regs) MSTK_GET(regs,year,YEAR) - -#define MSTK_SET_REG_SEC(regs,value) MSTK_SET(regs,sec,value,SEC) -#define MSTK_SET_REG_MIN(regs,value) MSTK_SET(regs,min,value,MIN) -#define MSTK_SET_REG_HOUR(regs,value) MSTK_SET(regs,hour,value,HOUR) -#define MSTK_SET_REG_DOW(regs,value) MSTK_SET(regs,dow,value,DOW) -#define MSTK_SET_REG_DOM(regs,value) MSTK_SET(regs,dom,value,DOM) -#define MSTK_SET_REG_MONTH(regs,value) MSTK_SET(regs,month,value,MONTH) -#define MSTK_SET_REG_YEAR(regs,value) MSTK_SET(regs,year,value,YEAR) - - -/* The Mostek 48t08 clock chip. Found on Sun4m's I think. It has the - * same (basically) layout of the 48t02 chip except for the extra - * NVRAM on board (8 KB against the 48t02's 2 KB). - */ -struct mostek48t08 { - char offset[6*1024]; /* Magic things may be here, who knows? */ - struct mostek48t02 regs; /* Here is what we are interested in. */ -}; - -#ifdef CONFIG_SUN4 -enum sparc_clock_type { MSTK48T02, MSTK48T08, \ -INTERSIL, MSTK_INVALID }; +#ifndef ___ASM_SPARC_MOSTEK_H +#define ___ASM_SPARC_MOSTEK_H +#if defined(__sparc__) && defined(__arch64__) +#include <asm-sparc/mostek_64.h> #else -enum sparc_clock_type { MSTK48T02, MSTK48T08, \ -MSTK_INVALID }; +#include <asm-sparc/mostek_32.h> #endif - -#ifdef CONFIG_SUN4 -/* intersil on a sun 4/260 code data from harris doc */ -struct intersil_dt { - volatile unsigned char int_csec; - volatile unsigned char int_hour; - volatile unsigned char int_min; - volatile unsigned char int_sec; - volatile unsigned char int_month; - volatile unsigned char int_day; - volatile unsigned char int_year; - volatile unsigned char int_dow; -}; - -struct intersil { - struct intersil_dt clk; - struct intersil_dt cmp; - volatile unsigned char int_intr_reg; - volatile unsigned char int_cmd_reg; -}; - -#define INTERSIL_STOP 0x0 -#define INTERSIL_START 0x8 -#define INTERSIL_INTR_DISABLE 0x0 -#define INTERSIL_INTR_ENABLE 0x10 -#define INTERSIL_32K 0x0 -#define INTERSIL_NORMAL 0x0 -#define INTERSIL_24H 0x4 -#define INTERSIL_INT_100HZ 0x2 - -/* end of intersil info */ #endif - -#endif /* !(_SPARC_MOSTEK_H) */ |