+++ /dev/null
-/*
- * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Andreas Heppel <aheppel@sysgo.de>
- *
- * 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
- */
-
-/*
- * Date & Time support for the MK48T59 RTC
- */
-
-#undef RTC_DEBUG
-
-#include <common.h>
-#include <command.h>
-#include <config.h>
-#include <rtc.h>
-#include <mk48t59.h>
-
-#if defined(CONFIG_RTC_MK48T59)
-
-#if defined(CONFIG_BAB7xx)
-
-static uchar rtc_read (short reg)
-{
- out8(RTC_PORT_ADDR0, reg & 0xFF);
- out8(RTC_PORT_ADDR1, (reg>>8) & 0xFF);
- return in8(RTC_PORT_DATA);
-}
-
-static void rtc_write (short reg, uchar val)
-{
- out8(RTC_PORT_ADDR0, reg & 0xFF);
- out8(RTC_PORT_ADDR1, (reg>>8) & 0xFF);
- out8(RTC_PORT_DATA, val);
-}
-
-#elif defined(CONFIG_PCIPPC2)
-
-#include "../board/pcippc2/pcippc2.h"
-
-static uchar rtc_read (short reg)
-{
- return in8(RTC(reg));
-}
-
-static void rtc_write (short reg, uchar val)
-{
- out8(RTC(reg),val);
-}
-
-#elif defined(CONFIG_AMIGAONEG3SE)
-
-#include "../board/MAI/AmigaOneG3SE/via686.h"
-#include "../board/MAI/AmigaOneG3SE/memio.h"
-
-
-static uchar rtc_read (short reg)
-{
- out_byte(CMOS_ADDR, (uint8)reg);
- return in_byte(CMOS_DATA);
-}
-
-static void rtc_write (short reg, uchar val)
-{
- out_byte(CMOS_ADDR, (uint8)reg);
- out_byte(CMOS_DATA, (uint8)val);
-}
-
-#elif defined(CONFIG_EVAL5200)
-
-static uchar rtc_read (short reg)
-{
- return in8(RTC(reg));
-}
-
-static void rtc_write (short reg, uchar val)
-{
- out8(RTC(reg),val);
-}
-
-#else
-# error Board specific rtc access functions should be supplied
-#endif
-
-static unsigned bcd2bin (uchar n)
-{
- return ((((n >> 4) & 0x0F) * 10) + (n & 0x0F));
-}
-
-static unsigned char bin2bcd (unsigned int n)
-{
- return (((n / 10) << 4) | (n % 10));
-}
-
-/* ------------------------------------------------------------------------- */
-
-void *nvram_read(void *dest, const short src, size_t count)
-{
- uchar *d = (uchar *) dest;
- short s = src;
-
- while (count--)
- *d++ = rtc_read(s++);
-
- return dest;
-}
-
-void nvram_write(short dest, const void *src, size_t count)
-{
- short d = dest;
- uchar *s = (uchar *) src;
-
- while (count--)
- rtc_write(d++, *s++);
-}
-
-#if defined(CONFIG_CMD_DATE)
-
-/* ------------------------------------------------------------------------- */
-
-void rtc_get (struct rtc_time *tmp)
-{
- uchar save_ctrl_a;
- uchar sec, min, hour, mday, wday, mon, year;
-
- /* Simple: freeze the clock, read it and allow updates again */
- save_ctrl_a = rtc_read(RTC_CONTROLA);
-
- /* Set the register to read the value. */
- save_ctrl_a |= RTC_CA_READ;
- rtc_write(RTC_CONTROLA, save_ctrl_a);
-
- sec = rtc_read (RTC_SECONDS);
- min = rtc_read (RTC_MINUTES);
- hour = rtc_read (RTC_HOURS);
- mday = rtc_read (RTC_DAY_OF_MONTH);
- wday = rtc_read (RTC_DAY_OF_WEEK);
- mon = rtc_read (RTC_MONTH);
- year = rtc_read (RTC_YEAR);
-
- /* re-enable update */
- save_ctrl_a &= ~RTC_CA_READ;
- rtc_write(RTC_CONTROLA, save_ctrl_a);
-
-#ifdef RTC_DEBUG
- printf ( "Get RTC year: %02x mon/cent: %02x mday: %02x wday: %02x "
- "hr: %02x min: %02x sec: %02x\n",
- year, mon, mday, wday,
- hour, min, sec );
-#endif
- tmp->tm_sec = bcd2bin (sec & 0x7F);
- tmp->tm_min = bcd2bin (min & 0x7F);
- tmp->tm_hour = bcd2bin (hour & 0x3F);
- tmp->tm_mday = bcd2bin (mday & 0x3F);
- tmp->tm_mon = bcd2bin (mon & 0x1F);
- tmp->tm_year = bcd2bin (year);
- tmp->tm_wday = bcd2bin (wday & 0x07);
- if(tmp->tm_year<70)
- tmp->tm_year+=2000;
- else
- tmp->tm_year+=1900;
- tmp->tm_yday = 0;
- tmp->tm_isdst= 0;
-#ifdef RTC_DEBUG
- printf ( "Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
- tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
- tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
-#endif
-}
-
-void rtc_set (struct rtc_time *tmp)
-{
- uchar save_ctrl_a;
-
-#ifdef RTC_DEBUG
- printf ( "Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
- tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
- tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
-#endif
- save_ctrl_a = rtc_read(RTC_CONTROLA);
-
- save_ctrl_a |= RTC_CA_WRITE;
- rtc_write(RTC_CONTROLA, save_ctrl_a); /* disables the RTC to update the regs */
-
- rtc_write (RTC_YEAR, bin2bcd(tmp->tm_year % 100));
- rtc_write (RTC_MONTH, bin2bcd(tmp->tm_mon));
-
- rtc_write (RTC_DAY_OF_WEEK, bin2bcd(tmp->tm_wday));
- rtc_write (RTC_DAY_OF_MONTH, bin2bcd(tmp->tm_mday));
- rtc_write (RTC_HOURS, bin2bcd(tmp->tm_hour));
- rtc_write (RTC_MINUTES, bin2bcd(tmp->tm_min ));
- rtc_write (RTC_SECONDS, bin2bcd(tmp->tm_sec ));
-
- save_ctrl_a &= ~RTC_CA_WRITE;
- rtc_write(RTC_CONTROLA, save_ctrl_a); /* enables the RTC to update the regs */
-}
-
-void rtc_reset (void)
-{
- uchar control_b;
-
- /*
- * Start oscillator here.
- */
- control_b = rtc_read(RTC_CONTROLB);
-
- control_b &= ~RTC_CB_STOP;
- rtc_write(RTC_CONTROLB, control_b);
-}
-
-void rtc_set_watchdog(short multi, short res)
-{
- uchar wd_value;
-
- wd_value = RTC_WDS | ((multi & 0x1F) << 2) | (res & 0x3);
- rtc_write(RTC_WATCHDOG, wd_value);
-}
-
-#endif
-#endif /* CONFIG_RTC_MK48T59 */
projects / karo-tx-uboot.git / blobdiff