+++ /dev/null
-/*
- * Time of Day Clock support for the M48T35, M48T37, M48T59, and MC146818
- * Real Time Clocks/Timekeepers.
- *
- * Author: Mark A. Greer <mgreer@mvista.com>
- *
- * 2001-2004 (c) MontaVista, Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/time.h>
-#include <linux/timex.h>
-#include <linux/bcd.h>
-#include <linux/mc146818rtc.h>
-
-#include <asm/machdep.h>
-#include <asm/io.h>
-#include <asm/time.h>
-#include <asm/todc.h>
-
-/*
- * Depending on the hardware on your board and your board design, the
- * RTC/NVRAM may be accessed either directly (like normal memory) or via
- * address/data registers. If your board uses the direct method, set
- * 'nvram_data' to the base address of your nvram and leave 'nvram_as0' and
- * 'nvram_as1' NULL. If your board uses address/data regs to access nvram,
- * set 'nvram_as0' to the address of the lower byte, set 'nvram_as1' to the
- * address of the upper byte (leave NULL if using mc146818), and set
- * 'nvram_data' to the address of the 8-bit data register.
- *
- * Note: Even though the documentation for the various RTC chips say that it
- * take up to a second before it starts updating once the 'R' bit is
- * cleared, they always seem to update even though we bang on it many
- * times a second. This is true, except for the Dallas Semi 1746/1747
- * (possibly others). Those chips seem to have a real problem whenever
- * we set the 'R' bit before reading them, they basically stop counting.
- * --MAG
- */
-
-/*
- * 'todc_info' should be initialized in your *_setup.c file to
- * point to a fully initialized 'todc_info_t' structure.
- * This structure holds all the register offsets for your particular
- * TODC/RTC chip.
- * TODC_ALLOC()/TODC_INIT() will allocate and initialize this table for you.
- */
-
-#ifdef RTC_FREQ_SELECT
-#undef RTC_FREQ_SELECT
-#define RTC_FREQ_SELECT control_b /* Register A */
-#endif
-
-#ifdef RTC_CONTROL
-#undef RTC_CONTROL
-#define RTC_CONTROL control_a /* Register B */
-#endif
-
-#ifdef RTC_INTR_FLAGS
-#undef RTC_INTR_FLAGS
-#define RTC_INTR_FLAGS watchdog /* Register C */
-#endif
-
-#ifdef RTC_VALID
-#undef RTC_VALID
-#define RTC_VALID interrupts /* Register D */
-#endif
-
-/* Access routines when RTC accessed directly (like normal memory) */
-u_char
-todc_direct_read_val(int addr)
-{
- return readb((void __iomem *)(todc_info->nvram_data + addr));
-}
-
-void
-todc_direct_write_val(int addr, unsigned char val)
-{
- writeb(val, (void __iomem *)(todc_info->nvram_data + addr));
- return;
-}
-
-/* Access routines for accessing m48txx type chips via addr/data regs */
-u_char
-todc_m48txx_read_val(int addr)
-{
- outb(addr, todc_info->nvram_as0);
- outb(addr>>todc_info->as0_bits, todc_info->nvram_as1);
- return inb(todc_info->nvram_data);
-}
-
-void
-todc_m48txx_write_val(int addr, unsigned char val)
-{
- outb(addr, todc_info->nvram_as0);
- outb(addr>>todc_info->as0_bits, todc_info->nvram_as1);
- outb(val, todc_info->nvram_data);
- return;
-}
-
-/* Access routines for accessing mc146818 type chips via addr/data regs */
-u_char
-todc_mc146818_read_val(int addr)
-{
- outb_p(addr, todc_info->nvram_as0);
- return inb_p(todc_info->nvram_data);
-}
-
-void
-todc_mc146818_write_val(int addr, unsigned char val)
-{
- outb_p(addr, todc_info->nvram_as0);
- outb_p(val, todc_info->nvram_data);
-}
-
-
-/*
- * Routines to make RTC chips with NVRAM buried behind an addr/data pair
- * have the NVRAM and clock regs appear at the same level.
- * The NVRAM will appear to start at addr 0 and the clock regs will appear
- * to start immediately after the NVRAM (actually, start at offset
- * todc_info->nvram_size).
- */
-static inline u_char
-todc_read_val(int addr)
-{
- u_char val;
-
- if (todc_info->sw_flags & TODC_FLAG_2_LEVEL_NVRAM) {
- if (addr < todc_info->nvram_size) { /* NVRAM */
- ppc_md.rtc_write_val(todc_info->nvram_addr_reg, addr);
- val = ppc_md.rtc_read_val(todc_info->nvram_data_reg);
- } else { /* Clock Reg */
- addr -= todc_info->nvram_size;
- val = ppc_md.rtc_read_val(addr);
- }
- } else
- val = ppc_md.rtc_read_val(addr);
-
- return val;
-}
-
-static inline void
-todc_write_val(int addr, u_char val)
-{
- if (todc_info->sw_flags & TODC_FLAG_2_LEVEL_NVRAM) {
- if (addr < todc_info->nvram_size) { /* NVRAM */
- ppc_md.rtc_write_val(todc_info->nvram_addr_reg, addr);
- ppc_md.rtc_write_val(todc_info->nvram_data_reg, val);
- } else { /* Clock Reg */
- addr -= todc_info->nvram_size;
- ppc_md.rtc_write_val(addr, val);
- }
- } else
- ppc_md.rtc_write_val(addr, val);
-}
-
-/*
- * TODC routines
- *
- * There is some ugly stuff in that there are assumptions for the mc146818.
- *
- * Assumptions:
- * - todc_info->control_a has the offset as mc146818 Register B reg
- * - todc_info->control_b has the offset as mc146818 Register A reg
- * - m48txx control reg's write enable or 'W' bit is same as
- * mc146818 Register B 'SET' bit (i.e., 0x80)
- *
- * These assumptions were made to make the code simpler.
- */
-long __init
-todc_time_init(void)
-{
- u_char cntl_b;
-
- if (!ppc_md.rtc_read_val)
- ppc_md.rtc_read_val = ppc_md.nvram_read_val;
- if (!ppc_md.rtc_write_val)
- ppc_md.rtc_write_val = ppc_md.nvram_write_val;
-
- cntl_b = todc_read_val(todc_info->control_b);
-
- if (todc_info->rtc_type == TODC_TYPE_MC146818) {
- if ((cntl_b & 0x70) != 0x20) {
- printk(KERN_INFO "TODC real-time-clock was stopped."
- " Now starting...");
- cntl_b &= ~0x70;
- cntl_b |= 0x20;
- }
-
- todc_write_val(todc_info->control_b, cntl_b);
- } else if (todc_info->rtc_type == TODC_TYPE_DS17285) {
- u_char mode;
-
- mode = todc_read_val(TODC_TYPE_DS17285_CNTL_A);
- /* Make sure countdown clear is not set */
- mode &= ~0x40;
- /* Enable oscillator, extended register set */
- mode |= 0x30;
- todc_write_val(TODC_TYPE_DS17285_CNTL_A, mode);
-
- } else if (todc_info->rtc_type == TODC_TYPE_DS1501) {
- u_char month;
-
- todc_info->enable_read = TODC_DS1501_CNTL_B_TE;
- todc_info->enable_write = TODC_DS1501_CNTL_B_TE;
-
- month = todc_read_val(todc_info->month);
-
- if ((month & 0x80) == 0x80) {
- printk(KERN_INFO "TODC %s %s\n",
- "real-time-clock was stopped.",
- "Now starting...");
- month &= ~0x80;
- todc_write_val(todc_info->month, month);
- }
-
- cntl_b &= ~TODC_DS1501_CNTL_B_TE;
- todc_write_val(todc_info->control_b, cntl_b);
- } else { /* must be a m48txx type */
- u_char cntl_a;
-
- todc_info->enable_read = TODC_MK48TXX_CNTL_A_R;
- todc_info->enable_write = TODC_MK48TXX_CNTL_A_W;
-
- cntl_a = todc_read_val(todc_info->control_a);
-
- /* Check & clear STOP bit in control B register */
- if (cntl_b & TODC_MK48TXX_DAY_CB) {
- printk(KERN_INFO "TODC %s %s\n",
- "real-time-clock was stopped.",
- "Now starting...");
-
- cntl_a |= todc_info->enable_write;
- cntl_b &= ~TODC_MK48TXX_DAY_CB;/* Start Oscil */
-
- todc_write_val(todc_info->control_a, cntl_a);
- todc_write_val(todc_info->control_b, cntl_b);
- }
-
- /* Make sure READ & WRITE bits are cleared. */
- cntl_a &= ~(todc_info->enable_write | todc_info->enable_read);
- todc_write_val(todc_info->control_a, cntl_a);
- }
-
- return 0;
-}
-
-/*
- * There is some ugly stuff in that there are assumptions that for a mc146818,
- * the todc_info->control_a has the offset of the mc146818 Register B reg and
- * that the register'ss 'SET' bit is the same as the m48txx's write enable
- * bit in the control register of the m48txx (i.e., 0x80).
- *
- * It was done to make the code look simpler.
- */
-void
-todc_get_rtc_time(struct rtc_time *tm)
-{
- uint year = 0, mon = 0, mday = 0, hour = 0, min = 0, sec = 0;
- uint limit, i;
- u_char save_control, uip = 0;
- extern void GregorianDay(struct rtc_time *);
-
- spin_lock(&rtc_lock);
- save_control = todc_read_val(todc_info->control_a);
-
- if (todc_info->rtc_type != TODC_TYPE_MC146818) {
- limit = 1;
-
- switch (todc_info->rtc_type) {
- case TODC_TYPE_DS1553:
- case TODC_TYPE_DS1557:
- case TODC_TYPE_DS1743:
- case TODC_TYPE_DS1746: /* XXXX BAD HACK -> FIX */
- case TODC_TYPE_DS1747:
- case TODC_TYPE_DS17285:
- break;
- default:
- todc_write_val(todc_info->control_a,
- (save_control | todc_info->enable_read));
- }
- } else
- limit = 100000000;
-
- for (i=0; i<limit; i++) {
- if (todc_info->rtc_type == TODC_TYPE_MC146818)
- uip = todc_read_val(todc_info->RTC_FREQ_SELECT);
-
- sec = todc_read_val(todc_info->seconds) & 0x7f;
- min = todc_read_val(todc_info->minutes) & 0x7f;
- hour = todc_read_val(todc_info->hours) & 0x3f;
- mday = todc_read_val(todc_info->day_of_month) & 0x3f;
- mon = todc_read_val(todc_info->month) & 0x1f;
- year = todc_read_val(todc_info->year) & 0xff;
-
- if (todc_info->rtc_type == TODC_TYPE_MC146818) {
- uip |= todc_read_val(todc_info->RTC_FREQ_SELECT);
- if ((uip & RTC_UIP) == 0)
- break;
- }
- }
-
- if (todc_info->rtc_type != TODC_TYPE_MC146818) {
- switch (todc_info->rtc_type) {
- case TODC_TYPE_DS1553:
- case TODC_TYPE_DS1557:
- case TODC_TYPE_DS1743:
- case TODC_TYPE_DS1746: /* XXXX BAD HACK -> FIX */
- case TODC_TYPE_DS1747:
- case TODC_TYPE_DS17285:
- break;
- default:
- save_control &= ~(todc_info->enable_read);
- todc_write_val(todc_info->control_a, save_control);
- }
- }
- spin_unlock(&rtc_lock);
-
- if ((todc_info->rtc_type != TODC_TYPE_MC146818)
- || ((save_control & RTC_DM_BINARY) == 0)
- || RTC_ALWAYS_BCD) {
- BCD_TO_BIN(sec);
- BCD_TO_BIN(min);
- BCD_TO_BIN(hour);
- BCD_TO_BIN(mday);
- BCD_TO_BIN(mon);
- BCD_TO_BIN(year);
- }
-
- if ((year + 1900) < 1970) {
- year += 100;
- }
-
- tm->tm_sec = sec;
- tm->tm_min = min;
- tm->tm_hour = hour;
- tm->tm_mday = mday;
- tm->tm_mon = mon;
- tm->tm_year = year;
-
- GregorianDay(tm);
-}
-
-int
-todc_set_rtc_time(struct rtc_time *tm)
-{
- u_char save_control, save_freq_select = 0;
-
- spin_lock(&rtc_lock);
- save_control = todc_read_val(todc_info->control_a);
-
- /* Assuming MK48T59_RTC_CA_WRITE & RTC_SET are equal */
- todc_write_val(todc_info->control_a,
- (save_control | todc_info->enable_write));
- save_control &= ~(todc_info->enable_write); /* in case it was set */
-
- if (todc_info->rtc_type == TODC_TYPE_MC146818) {
- save_freq_select = todc_read_val(todc_info->RTC_FREQ_SELECT);
- todc_write_val(todc_info->RTC_FREQ_SELECT,
- save_freq_select | RTC_DIV_RESET2);
- }
-
- if ((todc_info->rtc_type != TODC_TYPE_MC146818)
- || ((save_control & RTC_DM_BINARY) == 0)
- || RTC_ALWAYS_BCD) {
- BIN_TO_BCD(tm->tm_sec);
- BIN_TO_BCD(tm->tm_min);
- BIN_TO_BCD(tm->tm_hour);
- BIN_TO_BCD(tm->tm_mon);
- BIN_TO_BCD(tm->tm_mday);
- BIN_TO_BCD(tm->tm_year);
- }
-
- todc_write_val(todc_info->seconds, tm->tm_sec);
- todc_write_val(todc_info->minutes, tm->tm_min);
- todc_write_val(todc_info->hours, tm->tm_hour);
- todc_write_val(todc_info->month, tm->tm_mon);
- todc_write_val(todc_info->day_of_month, tm->tm_mday);
- todc_write_val(todc_info->year, tm->tm_year);
-
- todc_write_val(todc_info->control_a, save_control);
-
- if (todc_info->rtc_type == TODC_TYPE_MC146818)
- todc_write_val(todc_info->RTC_FREQ_SELECT, save_freq_select);
-
- spin_unlock(&rtc_lock);
- return 0;
-}
+++ /dev/null
-/*
- * Definitions for the M48Txx and mc146818 series of Time of day/Real Time
- * Clock chips.
- *
- * Author: Mark A. Greer <mgreer@mvista.com>
- *
- * 2001 (c) MontaVista, Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-
-/*
- * Support for the M48T37/M48T59/.../mc146818 Real Time Clock chips.
- * Purpose is to make one generic file that handles all of these chips instead
- * of every platform implementing the same code over & over again.
- */
-
-#ifndef __PPC_KERNEL_TODC_H
-#define __PPC_KERNEL_TODC_H
-
-typedef struct {
- uint rtc_type; /* your particular chip */
-
- /*
- * Following are the addresses of the AS0, AS1, and DATA registers
- * of these chips. Note that these are board-specific.
- */
- unsigned int nvram_as0;
- unsigned int nvram_as1;
- unsigned int nvram_data;
-
- /*
- * Define bits to stop external set of regs from changing so
- * the chip can be read/written reliably.
- */
- unsigned char enable_read;
- unsigned char enable_write;
-
- /*
- * Following is the number of AS0 address bits. This is normally
- * 8 but some bad hardware routes address lines incorrectly.
- */
- int as0_bits;
-
- int nvram_size; /* Size of NVRAM on chip */
- int sw_flags; /* Software control flags */
-
- /* Following are the register offsets for the particular chip */
- int year;
- int month;
- int day_of_month;
- int day_of_week;
- int hours;
- int minutes;
- int seconds;
- int control_b;
- int control_a;
- int watchdog;
- int interrupts;
- int alarm_date;
- int alarm_hour;
- int alarm_minutes;
- int alarm_seconds;
- int century;
- int flags;
-
- /*
- * Some RTC chips have their NVRAM buried behind a addr/data pair of
- * regs on the first level/clock registers. The following fields
- * are the addresses for those addr/data regs.
- */
- int nvram_addr_reg;
- int nvram_data_reg;
-} todc_info_t;
-
-/*
- * Define the types of TODC/RTC variants that are supported in
- * arch/ppc/kernel/todc_time.c
- * Make a new one of these for any chip somehow differs from what's already
- * defined. That way, if you ever need to put in code to touch those
- * bits/registers in todc_time.c, you can put it inside an
- * 'if (todc_info->rtc_type == TODC_TYPE_XXX)' so you won't break
- * anyone else.
- */
-#define TODC_TYPE_MK48T35 1
-#define TODC_TYPE_MK48T37 2
-#define TODC_TYPE_MK48T59 3
-#define TODC_TYPE_DS1693 4 /* Dallas DS1693 RTC */
-#define TODC_TYPE_DS1743 5 /* Dallas DS1743 RTC */
-#define TODC_TYPE_DS1746 6 /* Dallas DS1746 RTC */
-#define TODC_TYPE_DS1747 7 /* Dallas DS1747 RTC */
-#define TODC_TYPE_DS1501 8 /* Dallas DS1501 RTC */
-#define TODC_TYPE_DS1643 9 /* Dallas DS1643 RTC */
-#define TODC_TYPE_PC97307 10 /* PC97307 internal RTC */
-#define TODC_TYPE_DS1557 11 /* Dallas DS1557 RTC */
-#define TODC_TYPE_DS17285 12 /* Dallas DS17285 RTC */
-#define TODC_TYPE_DS1553 13 /* Dallas DS1553 RTC */
-#define TODC_TYPE_MC146818 100 /* Leave room for m48txx's */
-
-/*
- * Bit to clear/set to enable reads/writes to the chip
- */
-#define TODC_MK48TXX_CNTL_A_R 0x40
-#define TODC_MK48TXX_CNTL_A_W 0x80
-#define TODC_MK48TXX_DAY_CB 0x80
-
-#define TODC_DS1501_CNTL_B_TE 0x80
-
-/*
- * Define flag bits used by todc routines.
- */
-#define TODC_FLAG_2_LEVEL_NVRAM 0x00000001
-
-/*
- * Define the values for the various RTC's that should to into the todc_info
- * table.
- * Note: The XXX_NVRAM_SIZE, XXX_NVRAM_ADDR_REG, and XXX_NVRAM_DATA_REG only
- * matter if XXX_SW_FLAGS has TODC_FLAG_2_LEVEL_NVRAM set.
- */
-#define TODC_TYPE_MK48T35_NVRAM_SIZE 0x7ff8
-#define TODC_TYPE_MK48T35_SW_FLAGS 0
-#define TODC_TYPE_MK48T35_YEAR 0x7fff
-#define TODC_TYPE_MK48T35_MONTH 0x7ffe
-#define TODC_TYPE_MK48T35_DOM 0x7ffd /* Day of Month */
-#define TODC_TYPE_MK48T35_DOW 0x7ffc /* Day of Week */
-#define TODC_TYPE_MK48T35_HOURS 0x7ffb
-#define TODC_TYPE_MK48T35_MINUTES 0x7ffa
-#define TODC_TYPE_MK48T35_SECONDS 0x7ff9
-#define TODC_TYPE_MK48T35_CNTL_B 0x7ff9
-#define TODC_TYPE_MK48T35_CNTL_A 0x7ff8
-#define TODC_TYPE_MK48T35_WATCHDOG 0x0000
-#define TODC_TYPE_MK48T35_INTERRUPTS 0x0000
-#define TODC_TYPE_MK48T35_ALARM_DATE 0x0000
-#define TODC_TYPE_MK48T35_ALARM_HOUR 0x0000
-#define TODC_TYPE_MK48T35_ALARM_MINUTES 0x0000
-#define TODC_TYPE_MK48T35_ALARM_SECONDS 0x0000
-#define TODC_TYPE_MK48T35_CENTURY 0x0000
-#define TODC_TYPE_MK48T35_FLAGS 0x0000
-#define TODC_TYPE_MK48T35_NVRAM_ADDR_REG 0
-#define TODC_TYPE_MK48T35_NVRAM_DATA_REG 0
-
-#define TODC_TYPE_MK48T37_NVRAM_SIZE 0x7ff0
-#define TODC_TYPE_MK48T37_SW_FLAGS 0
-#define TODC_TYPE_MK48T37_YEAR 0x7fff
-#define TODC_TYPE_MK48T37_MONTH 0x7ffe
-#define TODC_TYPE_MK48T37_DOM 0x7ffd /* Day of Month */
-#define TODC_TYPE_MK48T37_DOW 0x7ffc /* Day of Week */
-#define TODC_TYPE_MK48T37_HOURS 0x7ffb
-#define TODC_TYPE_MK48T37_MINUTES 0x7ffa
-#define TODC_TYPE_MK48T37_SECONDS 0x7ff9
-#define TODC_TYPE_MK48T37_CNTL_B 0x7ff9
-#define TODC_TYPE_MK48T37_CNTL_A 0x7ff8
-#define TODC_TYPE_MK48T37_WATCHDOG 0x7ff7
-#define TODC_TYPE_MK48T37_INTERRUPTS 0x7ff6
-#define TODC_TYPE_MK48T37_ALARM_DATE 0x7ff5
-#define TODC_TYPE_MK48T37_ALARM_HOUR 0x7ff4
-#define TODC_TYPE_MK48T37_ALARM_MINUTES 0x7ff3
-#define TODC_TYPE_MK48T37_ALARM_SECONDS 0x7ff2
-#define TODC_TYPE_MK48T37_CENTURY 0x7ff1
-#define TODC_TYPE_MK48T37_FLAGS 0x7ff0
-#define TODC_TYPE_MK48T37_NVRAM_ADDR_REG 0
-#define TODC_TYPE_MK48T37_NVRAM_DATA_REG 0
-
-#define TODC_TYPE_MK48T59_NVRAM_SIZE 0x1ff0
-#define TODC_TYPE_MK48T59_SW_FLAGS 0
-#define TODC_TYPE_MK48T59_YEAR 0x1fff
-#define TODC_TYPE_MK48T59_MONTH 0x1ffe
-#define TODC_TYPE_MK48T59_DOM 0x1ffd /* Day of Month */
-#define TODC_TYPE_MK48T59_DOW 0x1ffc /* Day of Week */
-#define TODC_TYPE_MK48T59_HOURS 0x1ffb
-#define TODC_TYPE_MK48T59_MINUTES 0x1ffa
-#define TODC_TYPE_MK48T59_SECONDS 0x1ff9
-#define TODC_TYPE_MK48T59_CNTL_B 0x1ff9
-#define TODC_TYPE_MK48T59_CNTL_A 0x1ff8
-#define TODC_TYPE_MK48T59_WATCHDOG 0x1fff
-#define TODC_TYPE_MK48T59_INTERRUPTS 0x1fff
-#define TODC_TYPE_MK48T59_ALARM_DATE 0x1fff
-#define TODC_TYPE_MK48T59_ALARM_HOUR 0x1fff
-#define TODC_TYPE_MK48T59_ALARM_MINUTES 0x1fff
-#define TODC_TYPE_MK48T59_ALARM_SECONDS 0x1fff
-#define TODC_TYPE_MK48T59_CENTURY 0x1fff
-#define TODC_TYPE_MK48T59_FLAGS 0x1fff
-#define TODC_TYPE_MK48T59_NVRAM_ADDR_REG 0
-#define TODC_TYPE_MK48T59_NVRAM_DATA_REG 0
-
-#define TODC_TYPE_DS1501_NVRAM_SIZE 0x100
-#define TODC_TYPE_DS1501_SW_FLAGS TODC_FLAG_2_LEVEL_NVRAM
-#define TODC_TYPE_DS1501_YEAR (TODC_TYPE_DS1501_NVRAM_SIZE + 0x06)
-#define TODC_TYPE_DS1501_MONTH (TODC_TYPE_DS1501_NVRAM_SIZE + 0x05)
-#define TODC_TYPE_DS1501_DOM (TODC_TYPE_DS1501_NVRAM_SIZE + 0x04)
-#define TODC_TYPE_DS1501_DOW (TODC_TYPE_DS1501_NVRAM_SIZE + 0x03)
-#define TODC_TYPE_DS1501_HOURS (TODC_TYPE_DS1501_NVRAM_SIZE + 0x02)
-#define TODC_TYPE_DS1501_MINUTES (TODC_TYPE_DS1501_NVRAM_SIZE + 0x01)
-#define TODC_TYPE_DS1501_SECONDS (TODC_TYPE_DS1501_NVRAM_SIZE + 0x00)
-#define TODC_TYPE_DS1501_CNTL_B (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0f)
-#define TODC_TYPE_DS1501_CNTL_A (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0f)
-#define TODC_TYPE_DS1501_WATCHDOG (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff)
-#define TODC_TYPE_DS1501_INTERRUPTS (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff)
-#define TODC_TYPE_DS1501_ALARM_DATE (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0b)
-#define TODC_TYPE_DS1501_ALARM_HOUR (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0a)
-#define TODC_TYPE_DS1501_ALARM_MINUTES (TODC_TYPE_DS1501_NVRAM_SIZE + 0x09)
-#define TODC_TYPE_DS1501_ALARM_SECONDS (TODC_TYPE_DS1501_NVRAM_SIZE + 0x08)
-#define TODC_TYPE_DS1501_CENTURY (TODC_TYPE_DS1501_NVRAM_SIZE + 0x07)
-#define TODC_TYPE_DS1501_FLAGS (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff)
-#define TODC_TYPE_DS1501_NVRAM_ADDR_REG 0x10
-#define TODC_TYPE_DS1501_NVRAM_DATA_REG 0x13
-
-#define TODC_TYPE_DS1553_NVRAM_SIZE 0x1ff0
-#define TODC_TYPE_DS1553_SW_FLAGS 0
-#define TODC_TYPE_DS1553_YEAR 0x1fff
-#define TODC_TYPE_DS1553_MONTH 0x1ffe
-#define TODC_TYPE_DS1553_DOM 0x1ffd /* Day of Month */
-#define TODC_TYPE_DS1553_DOW 0x1ffc /* Day of Week */
-#define TODC_TYPE_DS1553_HOURS 0x1ffb
-#define TODC_TYPE_DS1553_MINUTES 0x1ffa
-#define TODC_TYPE_DS1553_SECONDS 0x1ff9
-#define TODC_TYPE_DS1553_CNTL_B 0x1ff9
-#define TODC_TYPE_DS1553_CNTL_A 0x1ff8 /* control_a R/W regs */
-#define TODC_TYPE_DS1553_WATCHDOG 0x1ff7
-#define TODC_TYPE_DS1553_INTERRUPTS 0x1ff6
-#define TODC_TYPE_DS1553_ALARM_DATE 0x1ff5
-#define TODC_TYPE_DS1553_ALARM_HOUR 0x1ff4
-#define TODC_TYPE_DS1553_ALARM_MINUTES 0x1ff3
-#define TODC_TYPE_DS1553_ALARM_SECONDS 0x1ff2
-#define TODC_TYPE_DS1553_CENTURY 0x1ff8
-#define TODC_TYPE_DS1553_FLAGS 0x1ff0
-#define TODC_TYPE_DS1553_NVRAM_ADDR_REG 0
-#define TODC_TYPE_DS1553_NVRAM_DATA_REG 0
-
-#define TODC_TYPE_DS1557_NVRAM_SIZE 0x7fff0
-#define TODC_TYPE_DS1557_SW_FLAGS 0
-#define TODC_TYPE_DS1557_YEAR 0x7ffff
-#define TODC_TYPE_DS1557_MONTH 0x7fffe
-#define TODC_TYPE_DS1557_DOM 0x7fffd /* Day of Month */
-#define TODC_TYPE_DS1557_DOW 0x7fffc /* Day of Week */
-#define TODC_TYPE_DS1557_HOURS 0x7fffb
-#define TODC_TYPE_DS1557_MINUTES 0x7fffa
-#define TODC_TYPE_DS1557_SECONDS 0x7fff9
-#define TODC_TYPE_DS1557_CNTL_B 0x7fff9
-#define TODC_TYPE_DS1557_CNTL_A 0x7fff8 /* control_a R/W regs */
-#define TODC_TYPE_DS1557_WATCHDOG 0x7fff7
-#define TODC_TYPE_DS1557_INTERRUPTS 0x7fff6
-#define TODC_TYPE_DS1557_ALARM_DATE 0x7fff5
-#define TODC_TYPE_DS1557_ALARM_HOUR 0x7fff4
-#define TODC_TYPE_DS1557_ALARM_MINUTES 0x7fff3
-#define TODC_TYPE_DS1557_ALARM_SECONDS 0x7fff2
-#define TODC_TYPE_DS1557_CENTURY 0x7fff8
-#define TODC_TYPE_DS1557_FLAGS 0x7fff0
-#define TODC_TYPE_DS1557_NVRAM_ADDR_REG 0
-#define TODC_TYPE_DS1557_NVRAM_DATA_REG 0
-
-#define TODC_TYPE_DS1643_NVRAM_SIZE 0x1ff8
-#define TODC_TYPE_DS1643_SW_FLAGS 0
-#define TODC_TYPE_DS1643_YEAR 0x1fff
-#define TODC_TYPE_DS1643_MONTH 0x1ffe
-#define TODC_TYPE_DS1643_DOM 0x1ffd /* Day of Month */
-#define TODC_TYPE_DS1643_DOW 0x1ffc /* Day of Week */
-#define TODC_TYPE_DS1643_HOURS 0x1ffb
-#define TODC_TYPE_DS1643_MINUTES 0x1ffa
-#define TODC_TYPE_DS1643_SECONDS 0x1ff9
-#define TODC_TYPE_DS1643_CNTL_B 0x1ff9
-#define TODC_TYPE_DS1643_CNTL_A 0x1ff8 /* control_a R/W regs */
-#define TODC_TYPE_DS1643_WATCHDOG 0x1fff
-#define TODC_TYPE_DS1643_INTERRUPTS 0x1fff
-#define TODC_TYPE_DS1643_ALARM_DATE 0x1fff
-#define TODC_TYPE_DS1643_ALARM_HOUR 0x1fff
-#define TODC_TYPE_DS1643_ALARM_MINUTES 0x1fff
-#define TODC_TYPE_DS1643_ALARM_SECONDS 0x1fff
-#define TODC_TYPE_DS1643_CENTURY 0x1ff8
-#define TODC_TYPE_DS1643_FLAGS 0x1fff
-#define TODC_TYPE_DS1643_NVRAM_ADDR_REG 0
-#define TODC_TYPE_DS1643_NVRAM_DATA_REG 0
-
-#define TODC_TYPE_DS1693_NVRAM_SIZE 0 /* Not handled yet */
-#define TODC_TYPE_DS1693_SW_FLAGS 0
-#define TODC_TYPE_DS1693_YEAR 0x09
-#define TODC_TYPE_DS1693_MONTH 0x08
-#define TODC_TYPE_DS1693_DOM 0x07 /* Day of Month */
-#define TODC_TYPE_DS1693_DOW 0x06 /* Day of Week */
-#define TODC_TYPE_DS1693_HOURS 0x04
-#define TODC_TYPE_DS1693_MINUTES 0x02
-#define TODC_TYPE_DS1693_SECONDS 0x00
-#define TODC_TYPE_DS1693_CNTL_B 0x0b
-#define TODC_TYPE_DS1693_CNTL_A 0x0a
-#define TODC_TYPE_DS1693_WATCHDOG 0xff
-#define TODC_TYPE_DS1693_INTERRUPTS 0xff
-#define TODC_TYPE_DS1693_ALARM_DATE 0x49
-#define TODC_TYPE_DS1693_ALARM_HOUR 0x05
-#define TODC_TYPE_DS1693_ALARM_MINUTES 0x03
-#define TODC_TYPE_DS1693_ALARM_SECONDS 0x01
-#define TODC_TYPE_DS1693_CENTURY 0x48
-#define TODC_TYPE_DS1693_FLAGS 0xff
-#define TODC_TYPE_DS1693_NVRAM_ADDR_REG 0
-#define TODC_TYPE_DS1693_NVRAM_DATA_REG 0
-
-#define TODC_TYPE_DS1743_NVRAM_SIZE 0x1ff8
-#define TODC_TYPE_DS1743_SW_FLAGS 0
-#define TODC_TYPE_DS1743_YEAR 0x1fff
-#define TODC_TYPE_DS1743_MONTH 0x1ffe
-#define TODC_TYPE_DS1743_DOM 0x1ffd /* Day of Month */
-#define TODC_TYPE_DS1743_DOW 0x1ffc /* Day of Week */
-#define TODC_TYPE_DS1743_HOURS 0x1ffb
-#define TODC_TYPE_DS1743_MINUTES 0x1ffa
-#define TODC_TYPE_DS1743_SECONDS 0x1ff9
-#define TODC_TYPE_DS1743_CNTL_B 0x1ff9
-#define TODC_TYPE_DS1743_CNTL_A 0x1ff8 /* control_a R/W regs */
-#define TODC_TYPE_DS1743_WATCHDOG 0x1fff
-#define TODC_TYPE_DS1743_INTERRUPTS 0x1fff
-#define TODC_TYPE_DS1743_ALARM_DATE 0x1fff
-#define TODC_TYPE_DS1743_ALARM_HOUR 0x1fff
-#define TODC_TYPE_DS1743_ALARM_MINUTES 0x1fff
-#define TODC_TYPE_DS1743_ALARM_SECONDS 0x1fff
-#define TODC_TYPE_DS1743_CENTURY 0x1ff8
-#define TODC_TYPE_DS1743_FLAGS 0x1fff
-#define TODC_TYPE_DS1743_NVRAM_ADDR_REG 0
-#define TODC_TYPE_DS1743_NVRAM_DATA_REG 0
-
-#define TODC_TYPE_DS1746_NVRAM_SIZE 0x1fff8
-#define TODC_TYPE_DS1746_SW_FLAGS 0
-#define TODC_TYPE_DS1746_YEAR 0x1ffff
-#define TODC_TYPE_DS1746_MONTH 0x1fffe
-#define TODC_TYPE_DS1746_DOM 0x1fffd /* Day of Month */
-#define TODC_TYPE_DS1746_DOW 0x1fffc /* Day of Week */
-#define TODC_TYPE_DS1746_HOURS 0x1fffb
-#define TODC_TYPE_DS1746_MINUTES 0x1fffa
-#define TODC_TYPE_DS1746_SECONDS 0x1fff9
-#define TODC_TYPE_DS1746_CNTL_B 0x1fff9
-#define TODC_TYPE_DS1746_CNTL_A 0x1fff8 /* control_a R/W regs */
-#define TODC_TYPE_DS1746_WATCHDOG 0x00000
-#define TODC_TYPE_DS1746_INTERRUPTS 0x00000
-#define TODC_TYPE_DS1746_ALARM_DATE 0x00000
-#define TODC_TYPE_DS1746_ALARM_HOUR 0x00000
-#define TODC_TYPE_DS1746_ALARM_MINUTES 0x00000
-#define TODC_TYPE_DS1746_ALARM_SECONDS 0x00000
-#define TODC_TYPE_DS1746_CENTURY 0x00000
-#define TODC_TYPE_DS1746_FLAGS 0x00000
-#define TODC_TYPE_DS1746_NVRAM_ADDR_REG 0
-#define TODC_TYPE_DS1746_NVRAM_DATA_REG 0
-
-#define TODC_TYPE_DS1747_NVRAM_SIZE 0x7fff8
-#define TODC_TYPE_DS1747_SW_FLAGS 0
-#define TODC_TYPE_DS1747_YEAR 0x7ffff
-#define TODC_TYPE_DS1747_MONTH 0x7fffe
-#define TODC_TYPE_DS1747_DOM 0x7fffd /* Day of Month */
-#define TODC_TYPE_DS1747_DOW 0x7fffc /* Day of Week */
-#define TODC_TYPE_DS1747_HOURS 0x7fffb
-#define TODC_TYPE_DS1747_MINUTES 0x7fffa
-#define TODC_TYPE_DS1747_SECONDS 0x7fff9
-#define TODC_TYPE_DS1747_CNTL_B 0x7fff9
-#define TODC_TYPE_DS1747_CNTL_A 0x7fff8 /* control_a R/W regs */
-#define TODC_TYPE_DS1747_WATCHDOG 0x00000
-#define TODC_TYPE_DS1747_INTERRUPTS 0x00000
-#define TODC_TYPE_DS1747_ALARM_DATE 0x00000
-#define TODC_TYPE_DS1747_ALARM_HOUR 0x00000
-#define TODC_TYPE_DS1747_ALARM_MINUTES 0x00000
-#define TODC_TYPE_DS1747_ALARM_SECONDS 0x00000
-#define TODC_TYPE_DS1747_CENTURY 0x00000
-#define TODC_TYPE_DS1747_FLAGS 0x00000
-#define TODC_TYPE_DS1747_NVRAM_ADDR_REG 0
-#define TODC_TYPE_DS1747_NVRAM_DATA_REG 0
-
-#define TODC_TYPE_DS17285_NVRAM_SIZE (0x1000-0x80) /* 4Kx8 NVRAM (minus RTC regs) */
-#define TODC_TYPE_DS17285_SW_FLAGS TODC_FLAG_2_LEVEL_NVRAM
-#define TODC_TYPE_DS17285_SECONDS (TODC_TYPE_DS17285_NVRAM_SIZE + 0x00)
-#define TODC_TYPE_DS17285_ALARM_SECONDS (TODC_TYPE_DS17285_NVRAM_SIZE + 0x01)
-#define TODC_TYPE_DS17285_MINUTES (TODC_TYPE_DS17285_NVRAM_SIZE + 0x02)
-#define TODC_TYPE_DS17285_ALARM_MINUTES (TODC_TYPE_DS17285_NVRAM_SIZE + 0x03)
-#define TODC_TYPE_DS17285_HOURS (TODC_TYPE_DS17285_NVRAM_SIZE + 0x04)
-#define TODC_TYPE_DS17285_ALARM_HOUR (TODC_TYPE_DS17285_NVRAM_SIZE + 0x05)
-#define TODC_TYPE_DS17285_DOW (TODC_TYPE_DS17285_NVRAM_SIZE + 0x06)
-#define TODC_TYPE_DS17285_DOM (TODC_TYPE_DS17285_NVRAM_SIZE + 0x07)
-#define TODC_TYPE_DS17285_MONTH (TODC_TYPE_DS17285_NVRAM_SIZE + 0x08)
-#define TODC_TYPE_DS17285_YEAR (TODC_TYPE_DS17285_NVRAM_SIZE + 0x09)
-#define TODC_TYPE_DS17285_CNTL_A (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0A)
-#define TODC_TYPE_DS17285_CNTL_B (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0B)
-#define TODC_TYPE_DS17285_CNTL_C (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0C)
-#define TODC_TYPE_DS17285_CNTL_D (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0D)
-#define TODC_TYPE_DS17285_WATCHDOG 0
-#define TODC_TYPE_DS17285_INTERRUPTS 0
-#define TODC_TYPE_DS17285_ALARM_DATE 0
-#define TODC_TYPE_DS17285_CENTURY 0
-#define TODC_TYPE_DS17285_FLAGS 0
-#define TODC_TYPE_DS17285_NVRAM_ADDR_REG 0x50
-#define TODC_TYPE_DS17285_NVRAM_DATA_REG 0x53
-
-#define TODC_TYPE_MC146818_NVRAM_SIZE 0 /* XXXX */
-#define TODC_TYPE_MC146818_SW_FLAGS 0
-#define TODC_TYPE_MC146818_YEAR 0x09
-#define TODC_TYPE_MC146818_MONTH 0x08
-#define TODC_TYPE_MC146818_DOM 0x07 /* Day of Month */
-#define TODC_TYPE_MC146818_DOW 0x06 /* Day of Week */
-#define TODC_TYPE_MC146818_HOURS 0x04
-#define TODC_TYPE_MC146818_MINUTES 0x02
-#define TODC_TYPE_MC146818_SECONDS 0x00
-#define TODC_TYPE_MC146818_CNTL_B 0x0a
-#define TODC_TYPE_MC146818_CNTL_A 0x0b /* control_a R/W regs */
-#define TODC_TYPE_MC146818_WATCHDOG 0
-#define TODC_TYPE_MC146818_INTERRUPTS 0x0c
-#define TODC_TYPE_MC146818_ALARM_DATE 0xff
-#define TODC_TYPE_MC146818_ALARM_HOUR 0x05
-#define TODC_TYPE_MC146818_ALARM_MINUTES 0x03
-#define TODC_TYPE_MC146818_ALARM_SECONDS 0x01
-#define TODC_TYPE_MC146818_CENTURY 0xff
-#define TODC_TYPE_MC146818_FLAGS 0xff
-#define TODC_TYPE_MC146818_NVRAM_ADDR_REG 0
-#define TODC_TYPE_MC146818_NVRAM_DATA_REG 0
-
-#define TODC_TYPE_PC97307_NVRAM_SIZE 0 /* No NVRAM? */
-#define TODC_TYPE_PC97307_SW_FLAGS 0
-#define TODC_TYPE_PC97307_YEAR 0x09
-#define TODC_TYPE_PC97307_MONTH 0x08
-#define TODC_TYPE_PC97307_DOM 0x07 /* Day of Month */
-#define TODC_TYPE_PC97307_DOW 0x06 /* Day of Week */
-#define TODC_TYPE_PC97307_HOURS 0x04
-#define TODC_TYPE_PC97307_MINUTES 0x02
-#define TODC_TYPE_PC97307_SECONDS 0x00
-#define TODC_TYPE_PC97307_CNTL_B 0x0a
-#define TODC_TYPE_PC97307_CNTL_A 0x0b /* control_a R/W regs */
-#define TODC_TYPE_PC97307_WATCHDOG 0x0c
-#define TODC_TYPE_PC97307_INTERRUPTS 0x0d
-#define TODC_TYPE_PC97307_ALARM_DATE 0xff
-#define TODC_TYPE_PC97307_ALARM_HOUR 0x05
-#define TODC_TYPE_PC97307_ALARM_MINUTES 0x03
-#define TODC_TYPE_PC97307_ALARM_SECONDS 0x01
-#define TODC_TYPE_PC97307_CENTURY 0xff
-#define TODC_TYPE_PC97307_FLAGS 0xff
-#define TODC_TYPE_PC97307_NVRAM_ADDR_REG 0
-#define TODC_TYPE_PC97307_NVRAM_DATA_REG 0
-
-/*
- * Define macros to allocate and init the todc_info_t table that will
- * be used by the todc_time.c routines.
- */
-#define TODC_ALLOC() \
- static todc_info_t todc_info_alloc; \
- todc_info_t *todc_info = &todc_info_alloc;
-
-#define TODC_INIT(clock_type, as0, as1, data, bits) { \
- todc_info->rtc_type = clock_type; \
- \
- todc_info->nvram_as0 = (unsigned int)(as0); \
- todc_info->nvram_as1 = (unsigned int)(as1); \
- todc_info->nvram_data = (unsigned int)(data); \
- \
- todc_info->as0_bits = (bits); \
- \
- todc_info->nvram_size = clock_type ##_NVRAM_SIZE; \
- todc_info->sw_flags = clock_type ##_SW_FLAGS; \
- \
- todc_info->year = clock_type ##_YEAR; \
- todc_info->month = clock_type ##_MONTH; \
- todc_info->day_of_month = clock_type ##_DOM; \
- todc_info->day_of_week = clock_type ##_DOW; \
- todc_info->hours = clock_type ##_HOURS; \
- todc_info->minutes = clock_type ##_MINUTES; \
- todc_info->seconds = clock_type ##_SECONDS; \
- todc_info->control_b = clock_type ##_CNTL_B; \
- todc_info->control_a = clock_type ##_CNTL_A; \
- todc_info->watchdog = clock_type ##_WATCHDOG; \
- todc_info->interrupts = clock_type ##_INTERRUPTS; \
- todc_info->alarm_date = clock_type ##_ALARM_DATE; \
- todc_info->alarm_hour = clock_type ##_ALARM_HOUR; \
- todc_info->alarm_minutes = clock_type ##_ALARM_MINUTES; \
- todc_info->alarm_seconds = clock_type ##_ALARM_SECONDS; \
- todc_info->century = clock_type ##_CENTURY; \
- todc_info->flags = clock_type ##_FLAGS; \
- \
- todc_info->nvram_addr_reg = clock_type ##_NVRAM_ADDR_REG; \
- todc_info->nvram_data_reg = clock_type ##_NVRAM_DATA_REG; \
-}
-
-extern todc_info_t *todc_info;
-
-unsigned char todc_direct_read_val(int addr);
-void todc_direct_write_val(int addr, unsigned char val);
-unsigned char todc_m48txx_read_val(int addr);
-void todc_m48txx_write_val(int addr, unsigned char val);
-unsigned char todc_mc146818_read_val(int addr);
-void todc_mc146818_write_val(int addr, unsigned char val);
-
-long todc_time_init(void);
-void todc_get_rtc_time(struct rtc_time *);
-int todc_set_rtc_time(struct rtc_time *);
-void todc_calibrate_decr(void);
-
-#endif /* __PPC_KERNEL_TODC_H */
projects / linux-beck.git / commitdiff