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Add a directory by kernel instead of a common root, add qnap-301w and rpi4 kernel 6.1 suppport

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Ycarus (Yannick Chabanois) 2023-04-22 08:07:24 +02:00
parent e910436a7a
commit 46837ec4c0
9459 changed files with 362648 additions and 116345 deletions
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88
common/package/utils/sysupgrade-helper/src/drivers/rtc/Makefile Normal file
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#
# (C) Copyright 2001-2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.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
#
include $(TOPDIR)/config.mk
#CFLAGS += -DDEBUG
LIB = $(obj)librtc.o
COBJS-$(CONFIG_RTC_AT91SAM9_RTT) += at91sam9_rtt.o
COBJS-$(CONFIG_RTC_BFIN) += bfin_rtc.o
COBJS-y += date.o
COBJS-$(CONFIG_RTC_DAVINCI) += davinci.o
COBJS-$(CONFIG_RTC_DS12887) += ds12887.o
COBJS-$(CONFIG_RTC_DS1302) += ds1302.o
COBJS-$(CONFIG_RTC_DS1306) += ds1306.o
COBJS-$(CONFIG_RTC_DS1307) += ds1307.o
COBJS-$(CONFIG_RTC_DS1338) += ds1307.o
COBJS-$(CONFIG_RTC_DS1337) += ds1337.o
COBJS-$(CONFIG_RTC_DS1374) += ds1374.o
COBJS-$(CONFIG_RTC_DS1556) += ds1556.o
COBJS-$(CONFIG_RTC_DS164x) += ds164x.o
COBJS-$(CONFIG_RTC_DS174x) += ds174x.o
COBJS-$(CONFIG_RTC_DS3231) += ds3231.o
COBJS-$(CONFIG_RTC_FTRTC010) += ftrtc010.o
COBJS-$(CONFIG_RTC_ISL1208) += isl1208.o
COBJS-$(CONFIG_RTC_M41T11) += m41t11.o
COBJS-$(CONFIG_RTC_M41T60) += m41t60.o
COBJS-$(CONFIG_RTC_M41T62) += m41t62.o
COBJS-$(CONFIG_RTC_M41T94) += m41t94.o
COBJS-$(CONFIG_RTC_M48T35A) += m48t35ax.o
COBJS-$(CONFIG_RTC_MAX6900) += max6900.o
COBJS-$(CONFIG_RTC_MC13XXX) += mc13xxx-rtc.o
COBJS-$(CONFIG_RTC_MC146818) += mc146818.o
COBJS-$(CONFIG_MCFRTC) += mcfrtc.o
COBJS-$(CONFIG_RTC_MK48T59) += mk48t59.o
COBJS-$(CONFIG_RTC_MPC5200) += mpc5xxx.o
COBJS-$(CONFIG_RTC_MPC8xx) += mpc8xx.o
COBJS-$(CONFIG_RTC_MV) += mvrtc.o
COBJS-$(CONFIG_RTC_MXS) += mxsrtc.o
COBJS-$(CONFIG_RTC_PCF8563) += pcf8563.o
COBJS-$(CONFIG_RTC_PL031) += pl031.o
COBJS-$(CONFIG_RTC_PT7C4338) += pt7c4338.o
COBJS-$(CONFIG_RTC_RS5C372A) += rs5c372.o
COBJS-$(CONFIG_RTC_RTC4543) += rtc4543.o
COBJS-$(CONFIG_RTC_RV3029) += rv3029.o
COBJS-$(CONFIG_RTC_RX8025) += rx8025.o
COBJS-$(CONFIG_RTC_S3C24X0) += s3c24x0_rtc.o
COBJS-$(CONFIG_RTC_S3C44B0) += s3c44b0_rtc.o
COBJS-$(CONFIG_RTC_X1205) += x1205.o
COBJS := $(sort $(COBJS-y))
SRCS := $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
all: $(LIB)
$(LIB): $(obj).depend $(OBJS)
$(call cmd_link_o_target, $(OBJS))
#########################################################################
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################

100
common/package/utils/sysupgrade-helper/src/drivers/rtc/at91sam9_rtt.c Normal file
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/*
* (C) Copyright 2010
* Reinhard Meyer, reinhard.meyer@emk-elektronik.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 internal Real-time Timer
* of AT91SAM9260 and compatibles.
* Compatible with the LinuX rtc driver workaround:
* The RTT cannot be written to, but only reset.
* The actual time is the sum of RTT and one of
* the four GPBR registers.
*
* The at91sam9260 has 4 GPBR (0-3).
* For their typical use see at91_gpbr.h !
*
* make sure u-boot and kernel use the same GPBR !
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <asm/io.h>
#include <asm/errno.h>
#include <asm/arch/hardware.h>
#include <asm/arch/at91_rtt.h>
#include <asm/arch/at91_gpbr.h>
#if defined(CONFIG_CMD_DATE)
int rtc_get (struct rtc_time *tmp)
{
at91_rtt_t *rtt = (at91_rtt_t *) ATMEL_BASE_RTT;
at91_gpbr_t *gpbr = (at91_gpbr_t *) ATMEL_BASE_GPBR;
ulong tim;
ulong tim2;
ulong off;
do {
tim = readl(&rtt->vr);
tim2 = readl(&rtt->vr);
} while (tim!=tim2);
off = readl(&gpbr->reg[AT91_GPBR_INDEX_TIMEOFF]);
/* off==0 means time is invalid, but we ignore that */
to_tm (tim+off, tmp);
return 0;
}
int rtc_set (struct rtc_time *tmp)
{
at91_rtt_t *rtt = (at91_rtt_t *) ATMEL_BASE_RTT;
at91_gpbr_t *gpbr = (at91_gpbr_t *) ATMEL_BASE_GPBR;
ulong tim;
tim = mktime (tmp->tm_year, tmp->tm_mon, tmp->tm_mday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
/* clear alarm, set prescaler to 32768, clear counter */
writel(32768+AT91_RTT_RTTRST, &rtt->mr);
writel(~0, &rtt->ar);
writel(tim, &gpbr->reg[AT91_GPBR_INDEX_TIMEOFF]);
/* wait for counter clear to happen, takes less than a 1/32768th second */
while (readl(&rtt->vr) != 0)
;
return 0;
}
void rtc_reset (void)
{
at91_rtt_t *rtt = (at91_rtt_t *) ATMEL_BASE_RTT;
at91_gpbr_t *gpbr = (at91_gpbr_t *) ATMEL_BASE_GPBR;
/* clear alarm, set prescaler to 32768, clear counter */
writel(32768+AT91_RTT_RTTRST, &rtt->mr);
writel(~0, &rtt->ar);
writel(0, &gpbr->reg[AT91_GPBR_INDEX_TIMEOFF]);
/* wait for counter clear to happen, takes less than a 1/32768th second */
while (readl(&rtt->vr) != 0)
;
}
#endif

122
common/package/utils/sysupgrade-helper/src/drivers/rtc/bfin_rtc.c Normal file
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/*
* Copyright (c) 2004-2008 Analog Devices Inc.
*
* (C) Copyright 2001
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* Licensed under the GPL-2 or later.
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#if defined(CONFIG_CMD_DATE)
#include <asm/blackfin.h>
#include <asm/mach-common/bits/rtc.h>
#define pr_stamp() debug("%s:%s:%i: here i am\n", __FILE__, __func__, __LINE__)
#define MIN_TO_SECS(x) (60 * (x))
#define HRS_TO_SECS(x) (60 * MIN_TO_SECS(x))
#define DAYS_TO_SECS(x) (24 * HRS_TO_SECS(x))
#define NUM_SECS_IN_MIN MIN_TO_SECS(1)
#define NUM_SECS_IN_HR HRS_TO_SECS(1)
#define NUM_SECS_IN_DAY DAYS_TO_SECS(1)
/* Enable the RTC prescaler enable register */
static void rtc_init(void)
{
if (!(bfin_read_RTC_PREN() & 0x1))
bfin_write_RTC_PREN(0x1);
}
/* Our on-chip RTC has no notion of "reset" */
void rtc_reset(void)
{
rtc_init();
}
/* Wait for pending writes to complete */
static void wait_for_complete(void)
{
pr_stamp();
while (!(bfin_read_RTC_ISTAT() & WRITE_COMPLETE))
if (!(bfin_read_RTC_ISTAT() & WRITE_PENDING))
break;
bfin_write_RTC_ISTAT(WRITE_COMPLETE);
}
/* Set the time. Get the time_in_secs which is the number of seconds since Jan 1970 and set the RTC registers
* based on this value.
*/
int rtc_set(struct rtc_time *tmp)
{
unsigned long remain, days, hrs, mins, secs;
pr_stamp();
if (tmp == NULL) {
puts("Error setting the date/time\n");
return -1;
}
rtc_init();
wait_for_complete();
/* Calculate number of seconds this incoming time represents */
remain = mktime(tmp->tm_year, tmp->tm_mon, tmp->tm_mday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
/* Figure out how many days since epoch */
days = remain / NUM_SECS_IN_DAY;
/* From the remaining secs, compute the hrs(0-23), mins(0-59) and secs(0-59) */
remain = remain % NUM_SECS_IN_DAY;
hrs = remain / NUM_SECS_IN_HR;
remain = remain % NUM_SECS_IN_HR;
mins = remain / NUM_SECS_IN_MIN;
secs = remain % NUM_SECS_IN_MIN;
/* Encode these time values into our RTC_STAT register */
bfin_write_RTC_STAT(SET_ALARM(days, hrs, mins, secs));
return 0;
}
/* Read the time from the RTC_STAT. time_in_seconds is seconds since Jan 1970 */
int rtc_get(struct rtc_time *tmp)
{
uint32_t cur_rtc_stat;
int time_in_sec;
int tm_sec, tm_min, tm_hr, tm_day;
pr_stamp();
if (tmp == NULL) {
puts("Error getting the date/time\n");
return -1;
}
rtc_init();
wait_for_complete();
/* Read the RTC_STAT register */
cur_rtc_stat = bfin_read_RTC_STAT();
/* Convert our encoded format into actual time values */
tm_sec = (cur_rtc_stat & RTC_SEC) >> RTC_SEC_P;
tm_min = (cur_rtc_stat & RTC_MIN) >> RTC_MIN_P;
tm_hr = (cur_rtc_stat & RTC_HR ) >> RTC_HR_P;
tm_day = (cur_rtc_stat & RTC_DAY) >> RTC_DAY_P;
/* Calculate the total number of seconds since epoch */
time_in_sec = (tm_sec) + MIN_TO_SECS(tm_min) + HRS_TO_SECS(tm_hr) + DAYS_TO_SECS(tm_day);
to_tm(time_in_sec, tmp);
return 0;
}
#endif

156
common/package/utils/sysupgrade-helper/src/drivers/rtc/date.c Normal file
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/*
* (C) Copyright 2001
* Wolfgang Denk, DENX Software Engineering, wd@denx.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 Philips PCF8563 RTC
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#if defined(CONFIG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
#define FEBRUARY 2
#define STARTOFTIME 1970
#define SECDAY 86400L
#define SECYR (SECDAY * 365)
#define leapyear(year) ((year) % 4 == 0)
#define days_in_year(a) (leapyear(a) ? 366 : 365)
#define days_in_month(a) (month_days[(a) - 1])
static int month_days[12] = {
31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
};
/*
* This only works for the Gregorian calendar - i.e. after 1752 (in the UK)
*/
void GregorianDay(struct rtc_time * tm)
{
int leapsToDate;
int lastYear;
int day;
int MonthOffset[] = { 0,31,59,90,120,151,181,212,243,273,304,334 };
lastYear=tm->tm_year-1;
/*
* Number of leap corrections to apply up to end of last year
*/
leapsToDate = lastYear/4 - lastYear/100 + lastYear/400;
/*
* This year is a leap year if it is divisible by 4 except when it is
* divisible by 100 unless it is divisible by 400
*
* e.g. 1904 was a leap year, 1900 was not, 1996 is, and 2000 will be
*/
if((tm->tm_year%4==0) &&
((tm->tm_year%100!=0) || (tm->tm_year%400==0)) &&
(tm->tm_mon>2)) {
/*
* We are past Feb. 29 in a leap year
*/
day=1;
} else {
day=0;
}
day += lastYear*365 + leapsToDate + MonthOffset[tm->tm_mon-1] + tm->tm_mday;
tm->tm_wday=day%7;
}
void to_tm(int tim, struct rtc_time * tm)
{
register int i;
register long hms, day;
day = tim / SECDAY;
hms = tim % SECDAY;
/* Hours, minutes, seconds are easy */
tm->tm_hour = hms / 3600;
tm->tm_min = (hms % 3600) / 60;
tm->tm_sec = (hms % 3600) % 60;
/* Number of years in days */
for (i = STARTOFTIME; day >= days_in_year(i); i++) {
day -= days_in_year(i);
}
tm->tm_year = i;
/* Number of months in days left */
if (leapyear(tm->tm_year)) {
days_in_month(FEBRUARY) = 29;
}
for (i = 1; day >= days_in_month(i); i++) {
day -= days_in_month(i);
}
days_in_month(FEBRUARY) = 28;
tm->tm_mon = i;
/* Days are what is left over (+1) from all that. */
tm->tm_mday = day + 1;
/*
* Determine the day of week
*/
GregorianDay(tm);
}
/* Converts Gregorian date to seconds since 1970-01-01 00:00:00.
* Assumes input in normal date format, i.e. 1980-12-31 23:59:59
* => year=1980, mon=12, day=31, hour=23, min=59, sec=59.
*
* [For the Julian calendar (which was used in Russia before 1917,
* Britain & colonies before 1752, anywhere else before 1582,
* and is still in use by some communities) leave out the
* -year/100+year/400 terms, and add 10.]
*
* This algorithm was first published by Gauss (I think).
*
* WARNING: this function will overflow on 2106-02-07 06:28:16 on
* machines were long is 32-bit! (However, as time_t is signed, we
* will already get problems at other places on 2038-01-19 03:14:08)
*/
unsigned long
mktime (unsigned int year, unsigned int mon,
unsigned int day, unsigned int hour,
unsigned int min, unsigned int sec)
{
if (0 >= (int) (mon -= 2)) { /* 1..12 -> 11,12,1..10 */
mon += 12; /* Puts Feb last since it has leap day */
year -= 1;
}
return (((
(unsigned long) (year/4 - year/100 + year/400 + 367*mon/12 + day) +
year*365 - 719499
)*24 + hour /* now have hours */
)*60 + min /* now have minutes */
)*60 + sec; /* finally seconds */
}
#endif

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common/package/utils/sysupgrade-helper/src/drivers/rtc/davinci.c Normal file
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/*
* (C) Copyright 2011 DENX Software Engineering GmbH
* Heiko Schocher <hs@denx.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
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <asm/io.h>
#include <asm/arch/hardware.h>
#if defined(CONFIG_CMD_DATE)
int rtc_get(struct rtc_time *tmp)
{
struct davinci_rtc *rtc = davinci_rtc_base;
unsigned long sec, min, hour, mday, wday, mon_cent, year;
unsigned long status;
status = readl(&rtc->status);
if ((status & RTC_STATE_RUN) != RTC_STATE_RUN) {
printf("RTC doesn't run\n");
return -1;
}
if ((status & RTC_STATE_BUSY) == RTC_STATE_BUSY)
udelay(20);
sec = readl(&rtc->second);
min = readl(&rtc->minutes);
hour = readl(&rtc->hours);
mday = readl(&rtc->day);
wday = readl(&rtc->dotw);
mon_cent = readl(&rtc->month);
year = readl(&rtc->year);
debug("Get RTC year: %02lx mon/cent: %02lx mday: %02lx wday: %02lx "
"hr: %02lx min: %02lx sec: %02lx\n",
year, mon_cent, mday, wday,
hour, min, sec);
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_cent & 0x1F);
tmp->tm_year = bcd2bin(year) + 2000;
tmp->tm_wday = bcd2bin(wday & 0x07);
tmp->tm_yday = 0;
tmp->tm_isdst = 0;
debug("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);
return 0;
}
int rtc_set(struct rtc_time *tmp)
{
struct davinci_rtc *rtc = davinci_rtc_base;
debug("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);
writel(bin2bcd(tmp->tm_year % 100), &rtc->year);
writel(bin2bcd(tmp->tm_mon), &rtc->month);
writel(bin2bcd(tmp->tm_wday), &rtc->dotw);
writel(bin2bcd(tmp->tm_mday), &rtc->day);
writel(bin2bcd(tmp->tm_hour), &rtc->hours);
writel(bin2bcd(tmp->tm_min), &rtc->minutes);
writel(bin2bcd(tmp->tm_sec), &rtc->second);
return 0;
}
void rtc_reset(void)
{
struct davinci_rtc *rtc = davinci_rtc_base;
/* run RTC counter */
writel(0x01, &rtc->ctrl);
}
#endif

230
common/package/utils/sysupgrade-helper/src/drivers/rtc/ds12887.c Normal file
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/*
* (C) Copyright 2003
*
* 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 DS12887 RTC
*/
#undef RTC_DEBUG
#include <common.h>
#include <command.h>
#include <config.h>
#include <rtc.h>
#if defined(CONFIG_CMD_DATE)
#define RTC_SECONDS 0x00
#define RTC_SECONDS_ALARM 0x01
#define RTC_MINUTES 0x02
#define RTC_MINUTES_ALARM 0x03
#define RTC_HOURS 0x04
#define RTC_HOURS_ALARM 0x05
#define RTC_DAY_OF_WEEK 0x06
#define RTC_DATE_OF_MONTH 0x07
#define RTC_MONTH 0x08
#define RTC_YEAR 0x09
#define RTC_CONTROL_A 0x0A
#define RTC_CONTROL_B 0x0B
#define RTC_CONTROL_C 0x0C
#define RTC_CONTROL_D 0x0D
#define RTC_CA_UIP 0x80
#define RTC_CB_DM 0x04
#define RTC_CB_24_12 0x02
#define RTC_CB_SET 0x80
#if defined(CONFIG_ATC)
static uchar rtc_read (uchar reg)
{
uchar val;
*(volatile unsigned char*)(RTC_PORT_ADDR) = reg;
__asm__ __volatile__ ("sync");
val = *(volatile unsigned char*)(RTC_PORT_DATA);
return (val);
}
static void rtc_write (uchar reg, uchar val)
{
*(volatile unsigned char*)(RTC_PORT_ADDR) = reg;
__asm__ __volatile__ ("sync");
*(volatile unsigned char*)(RTC_PORT_DATA) = val;
__asm__ __volatile__ ("sync");
}
#else
# error Board specific rtc access functions should be supplied
#endif
int rtc_get (struct rtc_time *tmp)
{
uchar sec, min, hour, mday, wday, mon, year;
/* check if rtc is available for access */
while( rtc_read(RTC_CONTROL_A) & RTC_CA_UIP)
;
sec = rtc_read(RTC_SECONDS);
min = rtc_read(RTC_MINUTES);
hour = rtc_read(RTC_HOURS);
mday = rtc_read(RTC_DATE_OF_MONTH);
wday = rtc_read(RTC_DAY_OF_WEEK);
mon = rtc_read(RTC_MONTH);
year = rtc_read(RTC_YEAR);
#ifdef RTC_DEBUG
printf( "Get RTC year: %d; mon: %d; mday: %d; wday: %d; "
"hr: %d; min: %d; sec: %d\n",
year, mon, mday, wday, hour, min, sec );
printf ( "Alarms: hour: %02x min: %02x sec: %02x\n",
rtc_read (RTC_HOURS_ALARM),
rtc_read (RTC_MINUTES_ALARM),
rtc_read (RTC_SECONDS_ALARM) );
#endif
if( !(rtc_read(RTC_CONTROL_B) & RTC_CB_DM))
{ /* Information is in BCD format */
printf(" Get: Convert BSD to BIN\n");
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);
}
else
{
tmp->tm_sec = sec & 0x7F;
tmp->tm_min = min & 0x7F;
tmp->tm_hour = hour & 0x3F;
tmp->tm_mday = mday & 0x3F;
tmp->tm_mon = mon & 0x1F;
tmp->tm_year = year;
tmp->tm_wday = 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
return 0;
}
int rtc_set (struct rtc_time *tmp)
{
uchar save_ctrl_b;
uchar sec, min, hour, mday, wday, mon, year;
#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
if( !(rtc_read(RTC_CONTROL_B) & RTC_CB_DM))
{ /* Information is in BCD format */
year = bin2bcd(tmp->tm_year % 100);
mon = bin2bcd(tmp->tm_mon);
wday = bin2bcd(tmp->tm_wday);
mday = bin2bcd(tmp->tm_mday);
hour = bin2bcd(tmp->tm_hour);
min = bin2bcd(tmp->tm_min);
sec = bin2bcd(tmp->tm_sec);
}
else
{
year = tmp->tm_year % 100;
mon = tmp->tm_mon;
wday = tmp->tm_wday;
mday = tmp->tm_mday;
hour = tmp->tm_hour;
min = tmp->tm_min;
sec = tmp->tm_sec;
}
/* disables the RTC to update the regs */
save_ctrl_b = rtc_read(RTC_CONTROL_B);
save_ctrl_b |= RTC_CB_SET;
rtc_write(RTC_CONTROL_B, save_ctrl_b);
rtc_write (RTC_YEAR, year);
rtc_write (RTC_MONTH, mon);
rtc_write (RTC_DAY_OF_WEEK, wday);
rtc_write (RTC_DATE_OF_MONTH, mday);
rtc_write (RTC_HOURS, hour);
rtc_write (RTC_MINUTES, min);
rtc_write (RTC_SECONDS, sec);
/* enables the RTC to update the regs */
save_ctrl_b &= ~RTC_CB_SET;
rtc_write(RTC_CONTROL_B, save_ctrl_b);
return 0;
}
void rtc_reset (void)
{
struct rtc_time tmp;
uchar ctrl_rg;
ctrl_rg = RTC_CB_SET;
rtc_write(RTC_CONTROL_B,ctrl_rg);
tmp.tm_year = 1970 % 100;
tmp.tm_mon = 1;
tmp.tm_mday= 1;
tmp.tm_hour = 0;
tmp.tm_min = 0;
tmp.tm_sec = 0;
#ifdef RTC_DEBUG
printf ( "RTC: %4d-%02d-%02d %2d:%02d:%02d UTC\n",
tmp.tm_year, tmp.tm_mon, tmp.tm_mday,
tmp.tm_hour, tmp.tm_min, tmp.tm_sec);
#endif
ctrl_rg = RTC_CB_SET | RTC_CB_24_12 | RTC_CB_DM;
rtc_write(RTC_CONTROL_B,ctrl_rg);
rtc_set(&tmp);
rtc_write(RTC_HOURS_ALARM, 0),
rtc_write(RTC_MINUTES_ALARM, 0),
rtc_write(RTC_SECONDS_ALARM, 0);
ctrl_rg = RTC_CB_24_12 | RTC_CB_DM;
rtc_write(RTC_CONTROL_B,ctrl_rg);
}
#endif

332
common/package/utils/sysupgrade-helper/src/drivers/rtc/ds1302.c Normal file
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/*
* ds1302.c - Support for the Dallas Semiconductor DS1302 Timekeeping Chip
*
* Rex G. Feany <rfeany@zumanetworks.com>
*
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#if defined(CONFIG_CMD_DATE)
/* GPP Pins */
#define DATA 0x200
#define SCLK 0x400
#define RST 0x800
/* Happy Fun Defines(tm) */
#define RESET rtc_go_low(RST), rtc_go_low(SCLK)
#define N_RESET rtc_go_high(RST), rtc_go_low(SCLK)
#define CLOCK_HIGH rtc_go_high(SCLK)
#define CLOCK_LOW rtc_go_low(SCLK)
#define DATA_HIGH rtc_go_high(DATA)
#define DATA_LOW rtc_go_low(DATA)
#define DATA_READ (GTREGREAD(GPP_VALUE) & DATA)
#undef RTC_DEBUG
#ifdef RTC_DEBUG
# define DPRINTF(x,args...) printf("ds1302: " x , ##args)
static inline void DUMP(const char *ptr, int num)
{
while (num--) printf("%x ", *ptr++);
printf("]\n");
}
#else
# define DPRINTF(x,args...)
# define DUMP(ptr, num)
#endif
/* time data format for DS1302 */
struct ds1302_st
{
unsigned char CH:1; /* clock halt 1=stop 0=start */
unsigned char sec10:3;
unsigned char sec:4;
unsigned char zero0:1;
unsigned char min10:3;
unsigned char min:4;
unsigned char fmt:1; /* 1=12 hour 0=24 hour */
unsigned char zero1:1;
unsigned char hr10:2; /* 10 (0-2) or am/pm (am/pm, 0-1) */
unsigned char hr:4;
unsigned char zero2:2;
unsigned char date10:2;
unsigned char date:4;
unsigned char zero3:3;
unsigned char month10:1;
unsigned char month:4;
unsigned char zero4:5;
unsigned char day:3; /* day of week */
unsigned char year10:4;
unsigned char year:4;
unsigned char WP:1; /* write protect 1=protect 0=unprot */
unsigned char zero5:7;
};
static int ds1302_initted=0;
/* Pin control */
static inline void
rtc_go_high(unsigned int mask)
{
unsigned int f = GTREGREAD(GPP_VALUE) | mask;
GT_REG_WRITE(GPP_VALUE, f);
}
static inline void
rtc_go_low(unsigned int mask)
{
unsigned int f = GTREGREAD(GPP_VALUE) & ~mask;
GT_REG_WRITE(GPP_VALUE, f);
}
static inline void
rtc_go_input(unsigned int mask)
{
unsigned int f = GTREGREAD(GPP_IO_CONTROL) & ~mask;
GT_REG_WRITE(GPP_IO_CONTROL, f);
}
static inline void
rtc_go_output(unsigned int mask)
{
unsigned int f = GTREGREAD(GPP_IO_CONTROL) | mask;
GT_REG_WRITE(GPP_IO_CONTROL, f);
}
/* Access data in RTC */
static void
write_byte(unsigned char b)
{
int i;
unsigned char mask=1;
for(i=0;i<8;i++) {
CLOCK_LOW; /* Lower clock */
(b&mask)?DATA_HIGH:DATA_LOW; /* set data */
udelay(1);
CLOCK_HIGH; /* latch data with rising clock */
udelay(1);
mask=mask<<1;
}
}
static unsigned char
read_byte(void)
{
int i;
unsigned char mask=1;
unsigned char b=0;
for(i=0;i<8;i++) {
CLOCK_LOW;
udelay(1);
if (DATA_READ) b|=mask; /* if this bit is high, set in b */
CLOCK_HIGH; /* clock out next bit */
udelay(1);
mask=mask<<1;
}
return b;
}
static void
read_ser_drv(unsigned char addr, unsigned char *buf, int count)
{
int i;
#ifdef RTC_DEBUG
char *foo = buf;
#endif
DPRINTF("READ 0x%x bytes @ 0x%x [ ", count, addr);
addr|=1; /* READ */
N_RESET;
udelay(4);
write_byte(addr);
rtc_go_input(DATA); /* Put gpp pin into input mode */
udelay(1);
for(i=0;i<count;i++) *(buf++)=read_byte();
RESET;
rtc_go_output(DATA);/* Reset gpp for output */
udelay(4);
DUMP(foo, count);
}
static void
write_ser_drv(unsigned char addr, unsigned char *buf, int count)
{
int i;
DPRINTF("WRITE 0x%x bytes @ 0x%x [ ", count, addr);
DUMP(buf, count);
addr&=~1; /* WRITE */
N_RESET;
udelay(4);
write_byte(addr);
for(i=0;i<count;i++) write_byte(*(buf++));
RESET;
udelay(4);
}
void
rtc_init(void)
{
struct ds1302_st bbclk;
unsigned char b;
int mod;
DPRINTF("init\n");
rtc_go_output(DATA|SCLK|RST);
/* disable write protect */
b = 0;
write_ser_drv(0x8e,&b,1);
/* enable trickle */
b = 0xa5; /* 1010.0101 */
write_ser_drv(0x90,&b,1);
/* read burst */
read_ser_drv(0xbe, (unsigned char *)&bbclk, 8);
/* Sanity checks */
mod = 0;
if (bbclk.CH) {
printf("ds1302: Clock was halted, starting clock\n");
bbclk.CH=0;
mod=1;
}
if (bbclk.fmt) {
printf("ds1302: Clock was in 12 hour mode, fixing\n");
bbclk.fmt=0;
mod=1;
}
if (bbclk.year>9) {
printf("ds1302: Year was corrupted, fixing\n");
bbclk.year10=100/10; /* 2000 - why not? ;) */
bbclk.year=0;
mod=1;
}
/* Write out the changes if needed */
if (mod) {
/* enable write protect */
bbclk.WP = 1;
write_ser_drv(0xbe,(unsigned char *)&bbclk,8);
} else {
/* Else just turn write protect on */
b = 0x80;
write_ser_drv(0x8e,&b,1);
}
DPRINTF("init done\n");
ds1302_initted=1;
}
void
rtc_reset(void)
{
if(!ds1302_initted) rtc_init();
/* TODO */
}
int
rtc_get(struct rtc_time *tmp)
{
int rel = 0;
struct ds1302_st bbclk;
if(!ds1302_initted) rtc_init();
read_ser_drv(0xbe,(unsigned char *)&bbclk, 8); /* read burst */
if (bbclk.CH) {
printf("ds1302: rtc_get: Clock was halted, clock probably "
"corrupt\n");
rel = -1;
}
tmp->tm_sec=10*bbclk.sec10+bbclk.sec;
tmp->tm_min=10*bbclk.min10+bbclk.min;
tmp->tm_hour=10*bbclk.hr10+bbclk.hr;
tmp->tm_wday=bbclk.day;
tmp->tm_mday=10*bbclk.date10+bbclk.date;
tmp->tm_mon=10*bbclk.month10+bbclk.month;
tmp->tm_year=10*bbclk.year10+bbclk.year + 1900;
tmp->tm_yday = 0;
tmp->tm_isdst= 0;
DPRINTF("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 );
return rel;
}
int rtc_set(struct rtc_time *tmp)
{
struct ds1302_st bbclk;
unsigned char b=0;
if(!ds1302_initted) rtc_init();
DPRINTF("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);
memset(&bbclk,0,sizeof(bbclk));
bbclk.CH=0; /* dont halt */
bbclk.WP=1; /* write protect when we're done */
bbclk.sec10=tmp->tm_sec/10;
bbclk.sec=tmp->tm_sec%10;
bbclk.min10=tmp->tm_min/10;
bbclk.min=tmp->tm_min%10;
bbclk.hr10=tmp->tm_hour/10;
bbclk.hr=tmp->tm_hour%10;
bbclk.day=tmp->tm_wday;
bbclk.date10=tmp->tm_mday/10;
bbclk.date=tmp->tm_mday%10;
bbclk.month10=tmp->tm_mon/10;
bbclk.month=tmp->tm_mon%10;
tmp->tm_year -= 1900;
bbclk.year10=tmp->tm_year/10;
bbclk.year=tmp->tm_year%10;
write_ser_drv(0x8e,&b,1); /* disable write protect */
write_ser_drv(0xbe,(unsigned char *)&bbclk, 8); /* write burst */
return 0;
}
#endif

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common/package/utils/sysupgrade-helper/src/drivers/rtc/ds1306.c Normal file
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/*
* (C) Copyright 2002 SIXNET, dge@sixnetio.com.
*
* (C) Copyright 2004, Li-Pro.Net <www.li-pro.net>
* Stephan Linz <linz@li-pro.net>
*
* 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 DS1306 RTC using SPI:
*
* - SXNI855T: it uses its own soft SPI here in this file
* - all other: use the external spi_xfer() function
* (see include/spi.h)
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <spi.h>
#if defined(CONFIG_CMD_DATE)
#define RTC_SECONDS 0x00
#define RTC_MINUTES 0x01
#define RTC_HOURS 0x02
#define RTC_DAY_OF_WEEK 0x03
#define RTC_DATE_OF_MONTH 0x04
#define RTC_MONTH 0x05
#define RTC_YEAR 0x06
#define RTC_SECONDS_ALARM0 0x07
#define RTC_MINUTES_ALARM0 0x08
#define RTC_HOURS_ALARM0 0x09
#define RTC_DAY_OF_WEEK_ALARM0 0x0a
#define RTC_SECONDS_ALARM1 0x0b
#define RTC_MINUTES_ALARM1 0x0c
#define RTC_HOURS_ALARM1 0x0d
#define RTC_DAY_OF_WEEK_ALARM1 0x0e
#define RTC_CONTROL 0x0f
#define RTC_STATUS 0x10
#define RTC_TRICKLE_CHARGER 0x11
#define RTC_USER_RAM_BASE 0x20
/* ************************************************************************* */
#ifdef CONFIG_SXNI855T /* !!! SHOULD BE CHANGED TO NEW CODE !!! */
static void soft_spi_send (unsigned char n);
static unsigned char soft_spi_read (void);
static void init_spi (void);
/*-----------------------------------------------------------------------
* Definitions
*/
#define PB_SPISCK 0x00000002 /* PB 30 */
#define PB_SPIMOSI 0x00000004 /* PB 29 */
#define PB_SPIMISO 0x00000008 /* PB 28 */
#define PB_SPI_CE 0x00010000 /* PB 15 */
/* ------------------------------------------------------------------------- */
/* read clock time from DS1306 and return it in *tmp */
int rtc_get (struct rtc_time *tmp)
{
volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
unsigned char spi_byte; /* Data Byte */
init_spi (); /* set port B for software SPI */
/* Now we can enable the DS1306 RTC */
immap->im_cpm.cp_pbdat |= PB_SPI_CE;
udelay (10);
/* Shift out the address (0) of the time in the Clock Chip */
soft_spi_send (0);
/* Put the clock readings into the rtc_time structure */
tmp->tm_sec = bcd2bin (soft_spi_read ()); /* Read seconds */
tmp->tm_min = bcd2bin (soft_spi_read ()); /* Read minutes */
/* Hours are trickier */
spi_byte = soft_spi_read (); /* Read Hours into temporary value */
if (spi_byte & 0x40) {
/* 12 hour mode bit is set (time is in 1-12 format) */
if (spi_byte & 0x20) {
/* since PM we add 11 to get 0-23 for hours */
tmp->tm_hour = (bcd2bin (spi_byte & 0x1F)) + 11;
} else {
/* since AM we subtract 1 to get 0-23 for hours */
tmp->tm_hour = (bcd2bin (spi_byte & 0x1F)) - 1;
}
} else {
/* Otherwise, 0-23 hour format */
tmp->tm_hour = (bcd2bin (spi_byte & 0x3F));
}
soft_spi_read (); /* Read and discard Day of week */
tmp->tm_mday = bcd2bin (soft_spi_read ()); /* Read Day of the Month */
tmp->tm_mon = bcd2bin (soft_spi_read ()); /* Read Month */
/* Read Year and convert to this century */
tmp->tm_year = bcd2bin (soft_spi_read ()) + 2000;
/* Now we can disable the DS1306 RTC */
immap->im_cpm.cp_pbdat &= ~PB_SPI_CE; /* Disable DS1306 Chip */
udelay (10);
GregorianDay (tmp); /* Determine the day of week */
debug ("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);
return 0;
}
/* ------------------------------------------------------------------------- */
/* set clock time in DS1306 RTC and in MPC8xx RTC */
int rtc_set (struct rtc_time *tmp)
{
volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
init_spi (); /* set port B for software SPI */
/* Now we can enable the DS1306 RTC */
immap->im_cpm.cp_pbdat |= PB_SPI_CE; /* Enable DS1306 Chip */
udelay (10);
/* First disable write protect in the clock chip control register */
soft_spi_send (0x8F); /* send address of the control register */
soft_spi_send (0x00); /* send control register contents */
/* Now disable the DS1306 to terminate the write */
immap->im_cpm.cp_pbdat &= ~PB_SPI_CE;
udelay (10);
/* Now enable the DS1306 to initiate a new write */
immap->im_cpm.cp_pbdat |= PB_SPI_CE;
udelay (10);
/* Next, send the address of the clock time write registers */
soft_spi_send (0x80); /* send address of the first time register */
/* Use Burst Mode to send all of the time data to the clock */
bin2bcd (tmp->tm_sec);
soft_spi_send (bin2bcd (tmp->tm_sec)); /* Send Seconds */
soft_spi_send (bin2bcd (tmp->tm_min)); /* Send Minutes */
soft_spi_send (bin2bcd (tmp->tm_hour)); /* Send Hour */
soft_spi_send (bin2bcd (tmp->tm_wday)); /* Send Day of the Week */
soft_spi_send (bin2bcd (tmp->tm_mday)); /* Send Day of Month */
soft_spi_send (bin2bcd (tmp->tm_mon)); /* Send Month */
soft_spi_send (bin2bcd (tmp->tm_year - 2000)); /* Send Year */
/* Now we can disable the Clock chip to terminate the burst write */
immap->im_cpm.cp_pbdat &= ~PB_SPI_CE; /* Disable DS1306 Chip */
udelay (10);
/* Now we can enable the Clock chip to initiate a new write */
immap->im_cpm.cp_pbdat |= PB_SPI_CE; /* Enable DS1306 Chip */
udelay (10);
/* First we Enable write protect in the clock chip control register */
soft_spi_send (0x8F); /* send address of the control register */
soft_spi_send (0x40); /* send out Control Register contents */
/* Now disable the DS1306 */
immap->im_cpm.cp_pbdat &= ~PB_SPI_CE; /* Disable DS1306 Chip */
udelay (10);
/* Set standard MPC8xx clock to the same time so Linux will
* see the time even if it doesn't have a DS1306 clock driver.
* This helps with experimenting with standard kernels.
*/
{
ulong tim;
tim = mktime (tmp->tm_year, tmp->tm_mon, tmp->tm_mday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
immap->im_sitk.sitk_rtck = KAPWR_KEY;
immap->im_sit.sit_rtc = tim;
}
debug ("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);
return 0;
}
/* ------------------------------------------------------------------------- */
/* Initialize Port B for software SPI */
static void init_spi (void)
{
volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
/* Force output pins to begin at logic 0 */
immap->im_cpm.cp_pbdat &= ~(PB_SPI_CE | PB_SPIMOSI | PB_SPISCK);
/* Set these 3 signals as outputs */
immap->im_cpm.cp_pbdir |= (PB_SPIMOSI | PB_SPI_CE | PB_SPISCK);
immap->im_cpm.cp_pbdir &= ~PB_SPIMISO; /* Make MISO pin an input */
udelay (10);
}
/* ------------------------------------------------------------------------- */
/* NOTE: soft_spi_send() assumes that the I/O lines are configured already */
static void soft_spi_send (unsigned char n)
{
volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
unsigned char bitpos; /* bit position to receive */
unsigned char i; /* Loop Control */
/* bit position to send, start with most significant bit */
bitpos = 0x80;
/* Send 8 bits to software SPI */
for (i = 0; i < 8; i++) { /* Loop for 8 bits */
immap->im_cpm.cp_pbdat |= PB_SPISCK; /* Raise SCK */
if (n & bitpos)
immap->im_cpm.cp_pbdat |= PB_SPIMOSI; /* Set MOSI to 1 */
else
immap->im_cpm.cp_pbdat &= ~PB_SPIMOSI; /* Set MOSI to 0 */
udelay (10);
immap->im_cpm.cp_pbdat &= ~PB_SPISCK; /* Lower SCK */
udelay (10);
bitpos >>= 1; /* Shift for next bit position */
}
}
/* ------------------------------------------------------------------------- */
/* NOTE: soft_spi_read() assumes that the I/O lines are configured already */
static unsigned char soft_spi_read (void)
{
volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
unsigned char spi_byte = 0; /* Return value, assume success */
unsigned char bitpos; /* bit position to receive */
unsigned char i; /* Loop Control */
/* bit position to receive, start with most significant bit */
bitpos = 0x80;
/* Read 8 bits here */
for (i = 0; i < 8; i++) { /* Do 8 bits in loop */
immap->im_cpm.cp_pbdat |= PB_SPISCK; /* Raise SCK */
udelay (10);
if (immap->im_cpm.cp_pbdat & PB_SPIMISO) /* Get a bit of data */
spi_byte |= bitpos; /* Set data accordingly */
immap->im_cpm.cp_pbdat &= ~PB_SPISCK; /* Lower SCK */
udelay (10);
bitpos >>= 1; /* Shift for next bit position */
}
return spi_byte; /* Return the byte read */
}
/* ------------------------------------------------------------------------- */
void rtc_reset (void)
{
return; /* nothing to do */
}
#else /* not CONFIG_SXNI855T */
/* ************************************************************************* */
static unsigned char rtc_read (unsigned char reg);
static void rtc_write (unsigned char reg, unsigned char val);
static struct spi_slave *slave;
/* read clock time from DS1306 and return it in *tmp */
int rtc_get (struct rtc_time *tmp)
{
unsigned char sec, min, hour, mday, wday, mon, year;
/*
* Assuming Vcc = 2.0V (lowest speed)
*
* REVISIT: If we add an rtc_init() function we can do this
* step just once.
*/
if (!slave) {
slave = spi_setup_slave(0, CONFIG_SYS_SPI_RTC_DEVID, 600000,
SPI_MODE_3 | SPI_CS_HIGH);
if (!slave)
return;
}
if (spi_claim_bus(slave))
return;
sec = rtc_read (RTC_SECONDS);
min = rtc_read (RTC_MINUTES);
hour = rtc_read (RTC_HOURS);
mday = rtc_read (RTC_DATE_OF_MONTH);
wday = rtc_read (RTC_DAY_OF_WEEK);
mon = rtc_read (RTC_MONTH);
year = rtc_read (RTC_YEAR);
spi_release_bus(slave);
debug ("Get RTC year: %02x mon: %02x mday: %02x wday: %02x "
"hr: %02x min: %02x sec: %02x\n",
year, mon, mday, wday, hour, min, sec);
debug ("Alarms[0]: wday: %02x hour: %02x min: %02x sec: %02x\n",
rtc_read (RTC_DAY_OF_WEEK_ALARM0),
rtc_read (RTC_HOURS_ALARM0),
rtc_read (RTC_MINUTES_ALARM0), rtc_read (RTC_SECONDS_ALARM0));
debug ("Alarms[1]: wday: %02x hour: %02x min: %02x sec: %02x\n",
rtc_read (RTC_DAY_OF_WEEK_ALARM1),
rtc_read (RTC_HOURS_ALARM1),
rtc_read (RTC_MINUTES_ALARM1), rtc_read (RTC_SECONDS_ALARM1));
tmp->tm_sec = bcd2bin (sec & 0x7F); /* convert Seconds */
tmp->tm_min = bcd2bin (min & 0x7F); /* convert Minutes */
/* convert Hours */
tmp->tm_hour = (hour & 0x40)
? ((hour & 0x20) /* 12 hour mode */
? bcd2bin (hour & 0x1F) + 11 /* PM */
: bcd2bin (hour & 0x1F) - 1 /* AM */
)
: bcd2bin (hour & 0x3F); /* 24 hour mode */
tmp->tm_mday = bcd2bin (mday & 0x3F); /* convert Day of the Month */
tmp->tm_mon = bcd2bin (mon & 0x1F); /* convert Month */
tmp->tm_year = bcd2bin (year) + 2000; /* convert Year */
tmp->tm_wday = bcd2bin (wday & 0x07) - 1; /* convert Day of the Week */
tmp->tm_yday = 0;
tmp->tm_isdst = 0;
debug ("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);
return 0;
}
/* ------------------------------------------------------------------------- */
/* set clock time from *tmp in DS1306 RTC */
int rtc_set (struct rtc_time *tmp)
{
/* Assuming Vcc = 2.0V (lowest speed) */
if (!slave) {
slave = spi_setup_slave(0, CONFIG_SYS_SPI_RTC_DEVID, 600000,
SPI_MODE_3 | SPI_CS_HIGH);
if (!slave)
return;
}
if (spi_claim_bus(slave))
return;
debug ("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);
rtc_write (RTC_SECONDS, bin2bcd (tmp->tm_sec));
rtc_write (RTC_MINUTES, bin2bcd (tmp->tm_min));
rtc_write (RTC_HOURS, bin2bcd (tmp->tm_hour));
rtc_write (RTC_DAY_OF_WEEK, bin2bcd (tmp->tm_wday + 1));
rtc_write (RTC_DATE_OF_MONTH, bin2bcd (tmp->tm_mday));
rtc_write (RTC_MONTH, bin2bcd (tmp->tm_mon));
rtc_write (RTC_YEAR, bin2bcd (tmp->tm_year - 2000));
spi_release_bus(slave);
}
/* ------------------------------------------------------------------------- */
/* reset the DS1306 */
void rtc_reset (void)
{
/* Assuming Vcc = 2.0V (lowest speed) */
if (!slave) {
slave = spi_setup_slave(0, CONFIG_SYS_SPI_RTC_DEVID, 600000,
SPI_MODE_3 | SPI_CS_HIGH);
if (!slave)
return;
}
if (spi_claim_bus(slave))
return;
/* clear the control register */
rtc_write (RTC_CONTROL, 0x00); /* 1st step: reset WP */
rtc_write (RTC_CONTROL, 0x00); /* 2nd step: reset 1Hz, AIE1, AIE0 */
/* reset all alarms */
rtc_write (RTC_SECONDS_ALARM0, 0x00);
rtc_write (RTC_SECONDS_ALARM1, 0x00);
rtc_write (RTC_MINUTES_ALARM0, 0x00);
rtc_write (RTC_MINUTES_ALARM1, 0x00);
rtc_write (RTC_HOURS_ALARM0, 0x00);
rtc_write (RTC_HOURS_ALARM1, 0x00);
rtc_write (RTC_DAY_OF_WEEK_ALARM0, 0x00);
rtc_write (RTC_DAY_OF_WEEK_ALARM1, 0x00);
spi_release_bus(slave);
}
/* ------------------------------------------------------------------------- */
static unsigned char rtc_read (unsigned char reg)
{
int ret;
ret = spi_w8r8(slave, reg);
return ret < 0 ? 0 : ret;
}
/* ------------------------------------------------------------------------- */
static void rtc_write (unsigned char reg, unsigned char val)
{
unsigned char dout[2]; /* SPI Output Data Bytes */
unsigned char din[2]; /* SPI Input Data Bytes */
dout[0] = 0x80 | reg;
dout[1] = val;
spi_xfer (slave, 16, dout, din, SPI_XFER_BEGIN | SPI_XFER_END);
}
#endif /* end of code exclusion (see #ifdef CONFIG_SXNI855T above) */
#endif

196
common/package/utils/sysupgrade-helper/src/drivers/rtc/ds1307.c Normal file
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/*
* (C) Copyright 2001, 2002, 2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
* Keith Outwater, keith_outwater@mvis.com`
* Steven Scholz, steven.scholz@imc-berlin.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 (no alarms) for Dallas Semiconductor (now Maxim)
* DS1307 and DS1338 Real Time Clock (RTC).
*
* based on ds1337.c
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <i2c.h>
#if defined(CONFIG_CMD_DATE)
/*---------------------------------------------------------------------*/
#undef DEBUG_RTC
#ifdef DEBUG_RTC
#define DEBUGR(fmt,args...) printf(fmt ,##args)
#else
#define DEBUGR(fmt,args...)
#endif
/*---------------------------------------------------------------------*/
#ifndef CONFIG_SYS_I2C_RTC_ADDR
# define CONFIG_SYS_I2C_RTC_ADDR 0x68
#endif
#if defined(CONFIG_RTC_DS1307) && (CONFIG_SYS_I2C_SPEED > 100000)
# error The DS1307 is specified only up to 100kHz!
#endif
/*
* RTC register addresses
*/
#define RTC_SEC_REG_ADDR 0x00
#define RTC_MIN_REG_ADDR 0x01
#define RTC_HR_REG_ADDR 0x02
#define RTC_DAY_REG_ADDR 0x03
#define RTC_DATE_REG_ADDR 0x04
#define RTC_MON_REG_ADDR 0x05
#define RTC_YR_REG_ADDR 0x06
#define RTC_CTL_REG_ADDR 0x07
#define RTC_SEC_BIT_CH 0x80 /* Clock Halt (in Register 0) */
#define RTC_CTL_BIT_RS0 0x01 /* Rate select 0 */
#define RTC_CTL_BIT_RS1 0x02 /* Rate select 1 */
#define RTC_CTL_BIT_SQWE 0x10 /* Square Wave Enable */
#define RTC_CTL_BIT_OUT 0x80 /* Output Control */
static uchar rtc_read (uchar reg);
static void rtc_write (uchar reg, uchar val);
/*
* Get the current time from the RTC
*/
int rtc_get (struct rtc_time *tmp)
{
int rel = 0;
uchar sec, min, hour, mday, wday, mon, year;
sec = rtc_read (RTC_SEC_REG_ADDR);
min = rtc_read (RTC_MIN_REG_ADDR);
hour = rtc_read (RTC_HR_REG_ADDR);
wday = rtc_read (RTC_DAY_REG_ADDR);
mday = rtc_read (RTC_DATE_REG_ADDR);
mon = rtc_read (RTC_MON_REG_ADDR);
year = rtc_read (RTC_YR_REG_ADDR);
DEBUGR ("Get RTC year: %02x mon: %02x mday: %02x wday: %02x "
"hr: %02x min: %02x sec: %02x\n",
year, mon, mday, wday, hour, min, sec);
if (sec & RTC_SEC_BIT_CH) {
printf ("### Warning: RTC oscillator has stopped\n");
/* clear the CH flag */
rtc_write (RTC_SEC_REG_ADDR,
rtc_read (RTC_SEC_REG_ADDR) & ~RTC_SEC_BIT_CH);
rel = -1;
}
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) + ( bcd2bin (year) >= 70 ? 1900 : 2000);
tmp->tm_wday = bcd2bin ((wday - 1) & 0x07);
tmp->tm_yday = 0;
tmp->tm_isdst= 0;
DEBUGR ("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);
return rel;
}
/*
* Set the RTC
*/
int rtc_set (struct rtc_time *tmp)
{
DEBUGR ("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);
if (tmp->tm_year < 1970 || tmp->tm_year > 2069)
printf("WARNING: year should be between 1970 and 2069!\n");
rtc_write (RTC_YR_REG_ADDR, bin2bcd (tmp->tm_year % 100));
rtc_write (RTC_MON_REG_ADDR, bin2bcd (tmp->tm_mon));
rtc_write (RTC_DAY_REG_ADDR, bin2bcd (tmp->tm_wday + 1));
rtc_write (RTC_DATE_REG_ADDR, bin2bcd (tmp->tm_mday));
rtc_write (RTC_HR_REG_ADDR, bin2bcd (tmp->tm_hour));
rtc_write (RTC_MIN_REG_ADDR, bin2bcd (tmp->tm_min));
rtc_write (RTC_SEC_REG_ADDR, bin2bcd (tmp->tm_sec));
return 0;
}
/*
* Reset the RTC. We setting the date back to 1970-01-01.
* We also enable the oscillator output on the SQW/OUT pin and program
* it for 32,768 Hz output. Note that according to the datasheet, turning
* on the square wave output increases the current drain on the backup
* battery to something between 480nA and 800nA.
*/
void rtc_reset (void)
{
struct rtc_time tmp;
rtc_write (RTC_SEC_REG_ADDR, 0x00); /* clearing Clock Halt */
rtc_write (RTC_CTL_REG_ADDR, RTC_CTL_BIT_SQWE | RTC_CTL_BIT_RS1 | RTC_CTL_BIT_RS0);
tmp.tm_year = 1970;
tmp.tm_mon = 1;
tmp.tm_mday= 1;
tmp.tm_hour = 0;
tmp.tm_min = 0;
tmp.tm_sec = 0;
rtc_set(&tmp);
printf ( "RTC: %4d-%02d-%02d %2d:%02d:%02d UTC\n",
tmp.tm_year, tmp.tm_mon, tmp.tm_mday,
tmp.tm_hour, tmp.tm_min, tmp.tm_sec);
return;
}
/*
* Helper functions
*/
static
uchar rtc_read (uchar reg)
{
return (i2c_reg_read (CONFIG_SYS_I2C_RTC_ADDR, reg));
}
static void rtc_write (uchar reg, uchar val)
{
i2c_reg_write (CONFIG_SYS_I2C_RTC_ADDR, reg, val);
}
#endif

185
common/package/utils/sysupgrade-helper/src/drivers/rtc/ds1337.c Normal file
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/*
* (C) Copyright 2001-2008
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
* Keith Outwater, keith_outwater@mvis.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
*/
/*
* Date & Time support (no alarms) for Dallas Semiconductor (now Maxim)
* DS1337 Real Time Clock (RTC).
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <i2c.h>
#if defined(CONFIG_CMD_DATE)
/*
* RTC register addresses
*/
#define RTC_SEC_REG_ADDR 0x0
#define RTC_MIN_REG_ADDR 0x1
#define RTC_HR_REG_ADDR 0x2
#define RTC_DAY_REG_ADDR 0x3
#define RTC_DATE_REG_ADDR 0x4
#define RTC_MON_REG_ADDR 0x5
#define RTC_YR_REG_ADDR 0x6
#define RTC_CTL_REG_ADDR 0x0e
#define RTC_STAT_REG_ADDR 0x0f
#define RTC_TC_REG_ADDR 0x10
/*
* RTC control register bits
*/
#define RTC_CTL_BIT_A1IE 0x1 /* Alarm 1 interrupt enable */
#define RTC_CTL_BIT_A2IE 0x2 /* Alarm 2 interrupt enable */
#define RTC_CTL_BIT_INTCN 0x4 /* Interrupt control */
#define RTC_CTL_BIT_RS1 0x8 /* Rate select 1 */
#define RTC_CTL_BIT_RS2 0x10 /* Rate select 2 */
#define RTC_CTL_BIT_DOSC 0x80 /* Disable Oscillator */
/*
* RTC status register bits
*/
#define RTC_STAT_BIT_A1F 0x1 /* Alarm 1 flag */
#define RTC_STAT_BIT_A2F 0x2 /* Alarm 2 flag */
#define RTC_STAT_BIT_OSF 0x80 /* Oscillator stop flag */
static uchar rtc_read (uchar reg);
static void rtc_write (uchar reg, uchar val);
/*
* Get the current time from the RTC
*/
int rtc_get (struct rtc_time *tmp)
{
int rel = 0;
uchar sec, min, hour, mday, wday, mon_cent, year, control, status;
control = rtc_read (RTC_CTL_REG_ADDR);
status = rtc_read (RTC_STAT_REG_ADDR);
sec = rtc_read (RTC_SEC_REG_ADDR);
min = rtc_read (RTC_MIN_REG_ADDR);
hour = rtc_read (RTC_HR_REG_ADDR);
wday = rtc_read (RTC_DAY_REG_ADDR);
mday = rtc_read (RTC_DATE_REG_ADDR);
mon_cent = rtc_read (RTC_MON_REG_ADDR);
year = rtc_read (RTC_YR_REG_ADDR);
debug("Get RTC year: %02x mon/cent: %02x mday: %02x wday: %02x "
"hr: %02x min: %02x sec: %02x control: %02x status: %02x\n",
year, mon_cent, mday, wday, hour, min, sec, control, status);
if (status & RTC_STAT_BIT_OSF) {
printf ("### Warning: RTC oscillator has stopped\n");
/* clear the OSF flag */
rtc_write (RTC_STAT_REG_ADDR,
rtc_read (RTC_STAT_REG_ADDR) & ~RTC_STAT_BIT_OSF);
rel = -1;
}
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_cent & 0x1F);
tmp->tm_year = bcd2bin (year) + ((mon_cent & 0x80) ? 2000 : 1900);
tmp->tm_wday = bcd2bin ((wday - 1) & 0x07);
tmp->tm_yday = 0;
tmp->tm_isdst= 0;
debug("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);
return rel;
}
/*
* Set the RTC
*/
int rtc_set (struct rtc_time *tmp)
{
uchar century;
debug("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);
rtc_write (RTC_YR_REG_ADDR, bin2bcd (tmp->tm_year % 100));
century = (tmp->tm_year >= 2000) ? 0x80 : 0;
rtc_write (RTC_MON_REG_ADDR, bin2bcd (tmp->tm_mon) | century);
rtc_write (RTC_DAY_REG_ADDR, bin2bcd (tmp->tm_wday + 1));
rtc_write (RTC_DATE_REG_ADDR, bin2bcd (tmp->tm_mday));
rtc_write (RTC_HR_REG_ADDR, bin2bcd (tmp->tm_hour));
rtc_write (RTC_MIN_REG_ADDR, bin2bcd (tmp->tm_min));
rtc_write (RTC_SEC_REG_ADDR, bin2bcd (tmp->tm_sec));
return 0;
}
/*
* Reset the RTC. We also enable the oscillator output on the
* SQW/INTB* pin and program it for 32,768 Hz output. Note that
* according to the datasheet, turning on the square wave output
* increases the current drain on the backup battery from about
* 600 nA to 2uA. Define CONFIG_SYS_RTC_DS1337_NOOSC if you wish to turn
* off the OSC output.
*/
#ifdef CONFIG_SYS_RTC_DS1337_NOOSC
#define RTC_DS1337_RESET_VAL \
(RTC_CTL_BIT_INTCN | RTC_CTL_BIT_RS1 | RTC_CTL_BIT_RS2)
#else
#define RTC_DS1337_RESET_VAL (RTC_CTL_BIT_RS1 | RTC_CTL_BIT_RS2)
#endif
void rtc_reset (void)
{
rtc_write (RTC_CTL_REG_ADDR, RTC_DS1337_RESET_VAL);
#ifdef CONFIG_SYS_DS1339_TCR_VAL
rtc_write (RTC_TC_REG_ADDR, CONFIG_SYS_DS1339_TCR_VAL);
#endif
}
/*
* Helper functions
*/
static
uchar rtc_read (uchar reg)
{
return (i2c_reg_read (CONFIG_SYS_I2C_RTC_ADDR, reg));
}
static void rtc_write (uchar reg, uchar val)
{
i2c_reg_write (CONFIG_SYS_I2C_RTC_ADDR, reg, val);
}
#endif

260
common/package/utils/sysupgrade-helper/src/drivers/rtc/ds1374.c Normal file
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/*
* (C) Copyright 2001, 2002, 2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
* Keith Outwater, keith_outwater@mvis.com`
* Steven Scholz, steven.scholz@imc-berlin.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 (no alarms) for Dallas Semiconductor (now Maxim)
* DS1374 Real Time Clock (RTC).
*
* based on ds1337.c
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <i2c.h>
#if defined(CONFIG_CMD_DATE)
/*---------------------------------------------------------------------*/
#undef DEBUG_RTC
#define DEBUG_RTC
#ifdef DEBUG_RTC
#define DEBUGR(fmt,args...) printf(fmt ,##args)
#else
#define DEBUGR(fmt,args...)
#endif
/*---------------------------------------------------------------------*/
#ifndef CONFIG_SYS_I2C_RTC_ADDR
# define CONFIG_SYS_I2C_RTC_ADDR 0x68
#endif
#if defined(CONFIG_RTC_DS1374) && (CONFIG_SYS_I2C_SPEED > 400000)
# error The DS1374 is specified up to 400kHz in fast mode!
#endif
/*
* RTC register addresses
*/
#define RTC_TOD_CNT_BYTE0_ADDR 0x00 /* TimeOfDay */
#define RTC_TOD_CNT_BYTE1_ADDR 0x01
#define RTC_TOD_CNT_BYTE2_ADDR 0x02
#define RTC_TOD_CNT_BYTE3_ADDR 0x03
#define RTC_WD_ALM_CNT_BYTE0_ADDR 0x04
#define RTC_WD_ALM_CNT_BYTE1_ADDR 0x05
#define RTC_WD_ALM_CNT_BYTE2_ADDR 0x06
#define RTC_CTL_ADDR 0x07 /* RTC-CoNTrol-register */
#define RTC_SR_ADDR 0x08 /* RTC-StatusRegister */
#define RTC_TCS_DS_ADDR 0x09 /* RTC-TrickleChargeSelect DiodeSelect-register */
#define RTC_CTL_BIT_AIE (1<<0) /* Bit 0 - Alarm Interrupt enable */
#define RTC_CTL_BIT_RS1 (1<<1) /* Bit 1/2 - Rate Select square wave output */
#define RTC_CTL_BIT_RS2 (1<<2) /* Bit 2/2 - Rate Select square wave output */
#define RTC_CTL_BIT_WDSTR (1<<3) /* Bit 3 - Watchdog Reset Steering */
#define RTC_CTL_BIT_BBSQW (1<<4) /* Bit 4 - Battery-Backed Square-Wave */
#define RTC_CTL_BIT_WD_ALM (1<<5) /* Bit 5 - Watchdoc/Alarm Counter Select */
#define RTC_CTL_BIT_WACE (1<<6) /* Bit 6 - Watchdog/Alarm Counter Enable WACE*/
#define RTC_CTL_BIT_EN_OSC (1<<7) /* Bit 7 - Enable Oscilator */
#define RTC_SR_BIT_AF 0x01 /* Bit 0 = Alarm Flag */
#define RTC_SR_BIT_OSF 0x80 /* Bit 7 - Osc Stop Flag */
typedef unsigned char boolean_t;
#ifndef TRUE
#define TRUE ((boolean_t)(0==0))
#endif
#ifndef FALSE
#define FALSE (!TRUE)
#endif
const char RtcTodAddr[] = {
RTC_TOD_CNT_BYTE0_ADDR,
RTC_TOD_CNT_BYTE1_ADDR,
RTC_TOD_CNT_BYTE2_ADDR,
RTC_TOD_CNT_BYTE3_ADDR
};
static uchar rtc_read (uchar reg);
static void rtc_write (uchar reg, uchar val, boolean_t set);
static void rtc_write_raw (uchar reg, uchar val);
/*
* Get the current time from the RTC
*/
int rtc_get (struct rtc_time *tm){
int rel = 0;
unsigned long time1, time2;
unsigned int limit;
unsigned char tmp;
unsigned int i;
/*
* Since the reads are being performed one byte at a time,
* there is a chance that a carry will occur during the read.
* To detect this, 2 reads are performed and compared.
*/
limit = 10;
do {
i = 4;
time1 = 0;
while (i--) {
tmp = rtc_read(RtcTodAddr[i]);
time1 = (time1 << 8) | (tmp & 0xff);
}
i = 4;
time2 = 0;
while (i--) {
tmp = rtc_read(RtcTodAddr[i]);
time2 = (time2 << 8) | (tmp & 0xff);
}
} while ((time1 != time2) && limit--);
if (time1 != time2) {
printf("can't get consistent time from rtc chip\n");
rel = -1;
}
DEBUGR ("Get RTC s since 1.1.1970: %ld\n", time1);
to_tm(time1, tm); /* To Gregorian Date */
if (rtc_read(RTC_SR_ADDR) & RTC_SR_BIT_OSF) {
printf ("### Warning: RTC oscillator has stopped\n");
rel = -1;
}
DEBUGR ("Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_wday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
return rel;
}
/*
* Set the RTC
*/
int rtc_set (struct rtc_time *tmp){
unsigned long time;
unsigned i;
DEBUGR ("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);
if (tmp->tm_year < 1970 || tmp->tm_year > 2069)
printf("WARNING: year should be between 1970 and 2069!\n");
time = mktime(tmp->tm_year, tmp->tm_mon,
tmp->tm_mday, tmp->tm_hour,
tmp->tm_min, tmp->tm_sec);
DEBUGR ("Set RTC s since 1.1.1970: %ld (0x%02lx)\n", time, time);
/* write to RTC_TOD_CNT_BYTEn_ADDR */
for (i = 0; i <= 3; i++) {
rtc_write_raw(RtcTodAddr[i], (unsigned char)(time & 0xff));
time = time >> 8;
}
/* Start clock */
rtc_write(RTC_CTL_ADDR, RTC_CTL_BIT_EN_OSC, FALSE);
return 0;
}
/*
* Reset the RTC. We setting the date back to 1970-01-01.
* We also enable the oscillator output on the SQW/OUT pin and program
* it for 32,768 Hz output. Note that according to the datasheet, turning
* on the square wave output increases the current drain on the backup
* battery to something between 480nA and 800nA.
*/
void rtc_reset (void){
struct rtc_time tmp;
/* clear status flags */
rtc_write (RTC_SR_ADDR, (RTC_SR_BIT_AF|RTC_SR_BIT_OSF), FALSE); /* clearing OSF and AF */
/* Initialise DS1374 oriented to MPC8349E-ADS */
rtc_write (RTC_CTL_ADDR, (RTC_CTL_BIT_EN_OSC
|RTC_CTL_BIT_WACE
|RTC_CTL_BIT_AIE), FALSE);/* start osc, disable WACE, clear AIE
- set to 0 */
rtc_write (RTC_CTL_ADDR, (RTC_CTL_BIT_WD_ALM
|RTC_CTL_BIT_WDSTR
|RTC_CTL_BIT_RS1
|RTC_CTL_BIT_RS2
|RTC_CTL_BIT_BBSQW), TRUE);/* disable WD/ALM, WDSTR set to INT-pin,
set BBSQW and SQW to 32k
- set to 1 */
tmp.tm_year = 1970;
tmp.tm_mon = 1;
tmp.tm_mday= 1;
tmp.tm_hour = 0;
tmp.tm_min = 0;
tmp.tm_sec = 0;
rtc_set(&tmp);
printf("RTC: %4d-%02d-%02d %2d:%02d:%02d UTC\n",
tmp.tm_year, tmp.tm_mon, tmp.tm_mday,
tmp.tm_hour, tmp.tm_min, tmp.tm_sec);
rtc_write(RTC_WD_ALM_CNT_BYTE2_ADDR,0xAC, TRUE);
rtc_write(RTC_WD_ALM_CNT_BYTE1_ADDR,0xDE, TRUE);
rtc_write(RTC_WD_ALM_CNT_BYTE2_ADDR,0xAD, TRUE);
}
/*
* Helper functions
*/
static uchar rtc_read (uchar reg)
{
return (i2c_reg_read (CONFIG_SYS_I2C_RTC_ADDR, reg));
}
static void rtc_write (uchar reg, uchar val, boolean_t set)
{
if (set == TRUE) {
val |= i2c_reg_read (CONFIG_SYS_I2C_RTC_ADDR, reg);
i2c_reg_write (CONFIG_SYS_I2C_RTC_ADDR, reg, val);
} else {
val = i2c_reg_read (CONFIG_SYS_I2C_RTC_ADDR, reg) & ~val;
i2c_reg_write (CONFIG_SYS_I2C_RTC_ADDR, reg, val);
}
}
static void rtc_write_raw (uchar reg, uchar val)
{
i2c_reg_write (CONFIG_SYS_I2C_RTC_ADDR, reg, val);
}
#endif

196
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/*
* (C) Copyright 2002
* ARIO Data Networks, Inc. dchiu@ariodata.com
*
* modified for DS1556:
* Frank Panno <fpanno@delphintech.com>, Delphin Technology AG
*
* Based on MontaVista DS1743 code and U-Boot mc146818 code
*
* 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 DS1556 RTC
*/
/*#define RTC_DEBUG */
#include <common.h>
#include <command.h>
#include <rtc.h>
#if defined(CONFIG_CMD_DATE)
static uchar rtc_read( unsigned int addr );
static void rtc_write( unsigned int addr, uchar val);
#define RTC_BASE ( CONFIG_SYS_NVRAM_SIZE + CONFIG_SYS_NVRAM_BASE_ADDR )
#define RTC_YEAR ( RTC_BASE + 0xf )
#define RTC_MONTH ( RTC_BASE + 0xe )
#define RTC_DAY_OF_MONTH ( RTC_BASE + 0xd )
#define RTC_DAY_OF_WEEK ( RTC_BASE + 0xc )
#define RTC_HOURS ( RTC_BASE + 0xb )
#define RTC_MINUTES ( RTC_BASE + 0xa )
#define RTC_SECONDS ( RTC_BASE + 0x9 )
#define RTC_CENTURY ( RTC_BASE + 0x8 )
#define RTC_CONTROLA RTC_CENTURY
#define RTC_CONTROLB RTC_SECONDS
#define RTC_CONTROLC RTC_BASE
#define RTC_CA_WRITE 0x80
#define RTC_CA_READ 0x40
#define RTC_CB_OSC_DISABLE 0x80
#define RTC_CC_BATTERY_FLAG 0x10
#define RTC_CC_FREQ_TEST 0x40
/* ------------------------------------------------------------------------- */
int rtc_get( struct rtc_time *tmp )
{
uchar sec, min, hour;
uchar mday, wday, mon, year;
int century;
uchar reg_a;
reg_a = rtc_read( RTC_CONTROLA );
/* lock clock registers for read */
rtc_write( RTC_CONTROLA, ( reg_a | RTC_CA_READ ));
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 );
century = rtc_read( RTC_CENTURY );
/* unlock clock registers after read */
rtc_write( RTC_CONTROLA, ( reg_a & ~RTC_CA_READ ));
#ifdef RTC_DEBUG
printf( "Get RTC year: %02x mon/cent: %02x mon: %02x mday: %02x wday: %02x "
"hr: %02x min: %02x sec: %02x\n",
year, century, 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_wday = bcd2bin( wday & 0x07 );
/* glue year from century and year in century */
tmp->tm_year = bcd2bin( year ) +
( bcd2bin( century & 0x3F ) * 100 );
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
return 0;
}
int rtc_set( struct rtc_time *tmp )
{
uchar reg_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
/* lock clock registers for write */
reg_a = rtc_read( RTC_CONTROLA );
rtc_write( RTC_CONTROLA, ( reg_a | RTC_CA_WRITE ));
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 ));
/* break year up into century and year in century */
rtc_write( RTC_YEAR, bin2bcd( tmp->tm_year % 100 ));
rtc_write( RTC_CENTURY, bin2bcd( tmp->tm_year / 100 ));
/* unlock clock registers after read */
rtc_write( RTC_CONTROLA, ( reg_a & ~RTC_CA_WRITE ));
return 0;
}
void rtc_reset (void)
{
uchar reg_a, reg_b, reg_c;
reg_a = rtc_read( RTC_CONTROLA );
reg_b = rtc_read( RTC_CONTROLB );
if ( reg_b & RTC_CB_OSC_DISABLE )
{
printf( "real-time-clock was stopped. Now starting...\n" );
reg_a |= RTC_CA_WRITE;
reg_b &= ~RTC_CB_OSC_DISABLE;
rtc_write( RTC_CONTROLA, reg_a );
rtc_write( RTC_CONTROLB, reg_b );
}
/* make sure read/write clock register bits are cleared */
reg_a &= ~( RTC_CA_WRITE | RTC_CA_READ );
rtc_write( RTC_CONTROLA, reg_a );
reg_c = rtc_read( RTC_CONTROLC );
if (( reg_c & RTC_CC_BATTERY_FLAG ) == 0 )
printf( "RTC battery low. Clock setting may not be reliable.\n" );
}
/* ------------------------------------------------------------------------- */
static uchar rtc_read( unsigned int addr )
{
uchar val = *(volatile unsigned char*)(addr);
#ifdef RTC_DEBUG
printf( "rtc_read: %x:%x\n", addr, val );
#endif
return( val );
}
static void rtc_write( unsigned int addr, uchar val )
{
#ifdef RTC_DEBUG
printf( "rtc_write: %x:%x\n", addr, val );
#endif
*(volatile unsigned char*)(addr) = val;
}
#endif

192
common/package/utils/sysupgrade-helper/src/drivers/rtc/ds164x.c Normal file
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/*
* (C) Copyright 2002
* ARIO Data Networks, Inc. dchiu@ariodata.com
*
* modified for DS164x:
* The LEOX team <team@leox.org>, http://www.leox.org
*
* Based on MontaVista DS1743 code and U-Boot mc146818 code
*
* 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 DS164x RTC
*/
/* #define RTC_DEBUG */
#include <common.h>
#include <command.h>
#include <rtc.h>
#if defined(CONFIG_CMD_DATE)
static uchar rtc_read(unsigned int addr );
static void rtc_write(unsigned int addr, uchar val);
#define RTC_EPOCH 2000 /* century */
/*
* DS164x registers layout
*/
#define RTC_BASE ( CONFIG_SYS_NVRAM_BASE_ADDR + CONFIG_SYS_NVRAM_SIZE )
#define RTC_YEAR ( RTC_BASE + 0x07 )
#define RTC_MONTH ( RTC_BASE + 0x06 )
#define RTC_DAY_OF_MONTH ( RTC_BASE + 0x05 )
#define RTC_DAY_OF_WEEK ( RTC_BASE + 0x04 )
#define RTC_HOURS ( RTC_BASE + 0x03 )
#define RTC_MINUTES ( RTC_BASE + 0x02 )
#define RTC_SECONDS ( RTC_BASE + 0x01 )
#define RTC_CONTROL ( RTC_BASE + 0x00 )
#define RTC_CONTROLA RTC_CONTROL /* W=bit6, R=bit5 */
#define RTC_CA_WRITE 0x80
#define RTC_CA_READ 0x40
#define RTC_CONTROLB RTC_SECONDS /* OSC=bit7 */
#define RTC_CB_OSC_DISABLE 0x80
#define RTC_CONTROLC RTC_DAY_OF_WEEK /* FT=bit6 */
#define RTC_CC_FREQ_TEST 0x40
/* ------------------------------------------------------------------------- */
int rtc_get( struct rtc_time *tmp )
{
uchar sec, min, hour;
uchar mday, wday, mon, year;
uchar reg_a;
reg_a = rtc_read( RTC_CONTROLA );
/* lock clock registers for read */
rtc_write( RTC_CONTROLA, ( reg_a | RTC_CA_READ ));
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 );
/* unlock clock registers after read */
rtc_write( RTC_CONTROLA, ( reg_a & ~RTC_CA_READ ));
#ifdef RTC_DEBUG
printf( "Get RTC year: %02x mon: %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_wday = bcd2bin( wday & 0x07 );
/* glue year in century (2000) */
tmp->tm_year = bcd2bin( year ) + RTC_EPOCH;
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
return 0;
}
int rtc_set( struct rtc_time *tmp )
{
uchar reg_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
/* lock clock registers for write */
reg_a = rtc_read( RTC_CONTROLA );
rtc_write( RTC_CONTROLA, ( reg_a | RTC_CA_WRITE ));
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 ));
/* break year in century */
rtc_write( RTC_YEAR, bin2bcd( tmp->tm_year % 100 ));
/* unlock clock registers after read */
rtc_write( RTC_CONTROLA, ( reg_a & ~RTC_CA_WRITE ));
return 0;
}
void rtc_reset (void)
{
uchar reg_a, reg_b;
reg_a = rtc_read( RTC_CONTROLA );
reg_b = rtc_read( RTC_CONTROLB );
if ( reg_b & RTC_CB_OSC_DISABLE )
{
printf( "real-time-clock was stopped. Now starting...\n" );
reg_a |= RTC_CA_WRITE;
reg_b &= ~RTC_CB_OSC_DISABLE;
rtc_write( RTC_CONTROLA, reg_a );
rtc_write( RTC_CONTROLB, reg_b );
}
/* make sure read/write clock register bits are cleared */
reg_a &= ~( RTC_CA_WRITE | RTC_CA_READ );
rtc_write( RTC_CONTROLA, reg_a );
}
/* ------------------------------------------------------------------------- */
static uchar rtc_read( unsigned int addr )
{
uchar val = *(volatile unsigned char*)(addr);
#ifdef RTC_DEBUG
printf( "rtc_read: %x:%x\n", addr, val );
#endif
return( val );
}
static void rtc_write( unsigned int addr, uchar val )
{
#ifdef RTC_DEBUG
printf( "rtc_write: %x:%x\n", addr, val );
#endif
*(volatile unsigned char*)(addr) = val;
}
#endif

193
common/package/utils/sysupgrade-helper/src/drivers/rtc/ds174x.c Normal file
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/*
* (C) Copyright 2001
* ARIO Data Networks, Inc. dchiu@ariodata.com
*
* Based on MontaVista DS1743 code and U-Boot mc146818 code
*
* 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 DS174x RTC
*/
/*#define DEBUG*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#if defined(CONFIG_CMD_DATE)
static uchar rtc_read( unsigned int addr );
static void rtc_write( unsigned int addr, uchar val);
#define RTC_BASE ( CONFIG_SYS_NVRAM_SIZE + CONFIG_SYS_NVRAM_BASE_ADDR )
#define RTC_YEAR ( RTC_BASE + 7 )
#define RTC_MONTH ( RTC_BASE + 6 )
#define RTC_DAY_OF_MONTH ( RTC_BASE + 5 )
#define RTC_DAY_OF_WEEK ( RTC_BASE + 4 )
#define RTC_HOURS ( RTC_BASE + 3 )
#define RTC_MINUTES ( RTC_BASE + 2 )
#define RTC_SECONDS ( RTC_BASE + 1 )
#define RTC_CENTURY ( RTC_BASE + 0 )
#define RTC_CONTROLA RTC_CENTURY
#define RTC_CONTROLB RTC_SECONDS
#define RTC_CONTROLC RTC_DAY_OF_WEEK
#define RTC_CA_WRITE 0x80
#define RTC_CA_READ 0x40
#define RTC_CB_OSC_DISABLE 0x80
#define RTC_CC_BATTERY_FLAG 0x80
#define RTC_CC_FREQ_TEST 0x40
/* ------------------------------------------------------------------------- */
int rtc_get( struct rtc_time *tmp )
{
uchar sec, min, hour;
uchar mday, wday, mon, year;
int century;
uchar reg_a;
reg_a = rtc_read( RTC_CONTROLA );
/* lock clock registers for read */
rtc_write( RTC_CONTROLA, ( reg_a | RTC_CA_READ ));
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 );
century = rtc_read( RTC_CENTURY );
/* unlock clock registers after read */
rtc_write( RTC_CONTROLA, ( reg_a & ~RTC_CA_READ ));
#ifdef RTC_DEBUG
printf( "Get RTC year: %02x mon/cent: %02x mday: %02x wday: %02x "
"hr: %02x min: %02x sec: %02x\n",
year, mon_cent, 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_wday = bcd2bin( wday & 0x07 );
/* glue year from century and year in century */
tmp->tm_year = bcd2bin( year ) +
( bcd2bin( century & 0x3F ) * 100 );
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
return 0;
}
int rtc_set( struct rtc_time *tmp )
{
uchar reg_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
/* lock clock registers for write */
reg_a = rtc_read( RTC_CONTROLA );
rtc_write( RTC_CONTROLA, ( reg_a | RTC_CA_WRITE ));
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 ));
/* break year up into century and year in century */
rtc_write( RTC_YEAR, bin2bcd( tmp->tm_year % 100 ));
rtc_write( RTC_CENTURY, bin2bcd( tmp->tm_year / 100 ));
/* unlock clock registers after read */
rtc_write( RTC_CONTROLA, ( reg_a & ~RTC_CA_WRITE ));
return 0;
}
void rtc_reset (void)
{
uchar reg_a, reg_b, reg_c;
reg_a = rtc_read( RTC_CONTROLA );
reg_b = rtc_read( RTC_CONTROLB );
if ( reg_b & RTC_CB_OSC_DISABLE )
{
printf( "real-time-clock was stopped. Now starting...\n" );
reg_a |= RTC_CA_WRITE;
reg_b &= ~RTC_CB_OSC_DISABLE;
rtc_write( RTC_CONTROLA, reg_a );
rtc_write( RTC_CONTROLB, reg_b );
}
/* make sure read/write clock register bits are cleared */
reg_a &= ~( RTC_CA_WRITE | RTC_CA_READ );
rtc_write( RTC_CONTROLA, reg_a );
reg_c = rtc_read( RTC_CONTROLC );
if (( reg_c & RTC_CC_BATTERY_FLAG ) == 0 )
printf( "RTC battery low. Clock setting may not be reliable.\n" );
}
/* ------------------------------------------------------------------------- */
static uchar rtc_read( unsigned int addr )
{
uchar val = in8( addr );
#ifdef RTC_DEBUG
printf( "rtc_read: %x:%x\n", addr, val );
#endif
return( val );
}
static void rtc_write( unsigned int addr, uchar val )
{
#ifdef RTC_DEBUG
printf( "rtc_write: %x:%x\n", addr, val );
#endif
out8( addr, val );
}
#endif

177
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/*
* (C) Copyright 2006
* Markus Klotzbuecher, mk@denx.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 (no alarms) for Dallas Semiconductor (now Maxim)
* Extremly Accurate DS3231 Real Time Clock (RTC).
*
* copied from ds1337.c
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <i2c.h>
#if defined(CONFIG_CMD_DATE)
/*
* RTC register addresses
*/
#define RTC_SEC_REG_ADDR 0x0
#define RTC_MIN_REG_ADDR 0x1
#define RTC_HR_REG_ADDR 0x2
#define RTC_DAY_REG_ADDR 0x3
#define RTC_DATE_REG_ADDR 0x4
#define RTC_MON_REG_ADDR 0x5
#define RTC_YR_REG_ADDR 0x6
#define RTC_CTL_REG_ADDR 0x0e
#define RTC_STAT_REG_ADDR 0x0f
/*
* RTC control register bits
*/
#define RTC_CTL_BIT_A1IE 0x1 /* Alarm 1 interrupt enable */
#define RTC_CTL_BIT_A2IE 0x2 /* Alarm 2 interrupt enable */
#define RTC_CTL_BIT_INTCN 0x4 /* Interrupt control */
#define RTC_CTL_BIT_RS1 0x8 /* Rate select 1 */
#define RTC_CTL_BIT_RS2 0x10 /* Rate select 2 */
#define RTC_CTL_BIT_DOSC 0x80 /* Disable Oscillator */
/*
* RTC status register bits
*/
#define RTC_STAT_BIT_A1F 0x1 /* Alarm 1 flag */
#define RTC_STAT_BIT_A2F 0x2 /* Alarm 2 flag */
#define RTC_STAT_BIT_OSF 0x80 /* Oscillator stop flag */
static uchar rtc_read (uchar reg);
static void rtc_write (uchar reg, uchar val);
/*
* Get the current time from the RTC
*/
int rtc_get (struct rtc_time *tmp)
{
int rel = 0;
uchar sec, min, hour, mday, wday, mon_cent, year, control, status;
control = rtc_read (RTC_CTL_REG_ADDR);
status = rtc_read (RTC_STAT_REG_ADDR);
sec = rtc_read (RTC_SEC_REG_ADDR);
min = rtc_read (RTC_MIN_REG_ADDR);
hour = rtc_read (RTC_HR_REG_ADDR);
wday = rtc_read (RTC_DAY_REG_ADDR);
mday = rtc_read (RTC_DATE_REG_ADDR);
mon_cent = rtc_read (RTC_MON_REG_ADDR);
year = rtc_read (RTC_YR_REG_ADDR);
debug("Get RTC year: %02x mon/cent: %02x mday: %02x wday: %02x "
"hr: %02x min: %02x sec: %02x control: %02x status: %02x\n",
year, mon_cent, mday, wday, hour, min, sec, control, status);
if (status & RTC_STAT_BIT_OSF) {
printf ("### Warning: RTC oscillator has stopped\n");
/* clear the OSF flag */
rtc_write (RTC_STAT_REG_ADDR,
rtc_read (RTC_STAT_REG_ADDR) & ~RTC_STAT_BIT_OSF);
rel = -1;
}
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_cent & 0x1F);
tmp->tm_year = bcd2bin (year) + ((mon_cent & 0x80) ? 2000 : 1900);
tmp->tm_wday = bcd2bin ((wday - 1) & 0x07);
tmp->tm_yday = 0;
tmp->tm_isdst= 0;
debug("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);
return rel;
}
/*
* Set the RTC
*/
int rtc_set (struct rtc_time *tmp)
{
uchar century;
debug("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);
rtc_write (RTC_YR_REG_ADDR, bin2bcd (tmp->tm_year % 100));
century = (tmp->tm_year >= 2000) ? 0x80 : 0;
rtc_write (RTC_MON_REG_ADDR, bin2bcd (tmp->tm_mon) | century);
rtc_write (RTC_DAY_REG_ADDR, bin2bcd (tmp->tm_wday + 1));
rtc_write (RTC_DATE_REG_ADDR, bin2bcd (tmp->tm_mday));
rtc_write (RTC_HR_REG_ADDR, bin2bcd (tmp->tm_hour));
rtc_write (RTC_MIN_REG_ADDR, bin2bcd (tmp->tm_min));
rtc_write (RTC_SEC_REG_ADDR, bin2bcd (tmp->tm_sec));
return 0;
}
/*
* Reset the RTC. We also enable the oscillator output on the
* SQW/INTB* pin and program it for 32,768 Hz output. Note that
* according to the datasheet, turning on the square wave output
* increases the current drain on the backup battery from about
* 600 nA to 2uA.
*/
void rtc_reset (void)
{
rtc_write (RTC_CTL_REG_ADDR, RTC_CTL_BIT_RS1 | RTC_CTL_BIT_RS2);
}
/*
* Helper functions
*/
static
uchar rtc_read (uchar reg)
{
return (i2c_reg_read (CONFIG_SYS_I2C_RTC_ADDR, reg));
}
static void rtc_write (uchar reg, uchar val)
{
i2c_reg_write (CONFIG_SYS_I2C_RTC_ADDR, reg, val);
}
#endif

135
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/*
* Faraday FTRTC010 Real Time Clock
*
* (C) Copyright 2009 Faraday Technology
* Po-Yu Chuang <ratbert@faraday-tech.com>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <config.h>
#include <common.h>
#include <rtc.h>
#include <asm/io.h>
struct ftrtc010 {
unsigned int sec; /* 0x00 */
unsigned int min; /* 0x04 */
unsigned int hour; /* 0x08 */
unsigned int day; /* 0x0c */
unsigned int alarm_sec; /* 0x10 */
unsigned int alarm_min; /* 0x14 */
unsigned int alarm_hour; /* 0x18 */
unsigned int record; /* 0x1c */
unsigned int cr; /* 0x20 */
unsigned int wsec; /* 0x24 */
unsigned int wmin; /* 0x28 */
unsigned int whour; /* 0x2c */
unsigned int wday; /* 0x30 */
unsigned int intr; /* 0x34 */
unsigned int div; /* 0x38 */
unsigned int rev; /* 0x3c */
};
/*
* RTC Control Register
*/
#define FTRTC010_CR_ENABLE (1 << 0)
#define FTRTC010_CR_INTERRUPT_SEC (1 << 1) /* per second irq */
#define FTRTC010_CR_INTERRUPT_MIN (1 << 2) /* per minute irq */
#define FTRTC010_CR_INTERRUPT_HR (1 << 3) /* per hour irq */
#define FTRTC010_CR_INTERRUPT_DAY (1 << 4) /* per day irq */
static struct ftrtc010 *rtc = (struct ftrtc010 *)CONFIG_FTRTC010_BASE;
static void ftrtc010_enable(void)
{
writel(FTRTC010_CR_ENABLE, &rtc->cr);
}
/*
* return current time in seconds
*/
static unsigned long ftrtc010_time(void)
{
unsigned long day;
unsigned long hour;
unsigned long minute;
unsigned long second;
unsigned long second2;
do {
second = readl(&rtc->sec);
day = readl(&rtc->day);
hour = readl(&rtc->hour);
minute = readl(&rtc->min);
second2 = readl(&rtc->sec);
} while (second != second2);
return day * 24 * 60 * 60 + hour * 60 * 60 + minute * 60 + second;
}
/*
* Get the current time from the RTC
*/
int rtc_get(struct rtc_time *tmp)
{
unsigned long now;
debug("%s(): record register: %x\n",
__func__, readl(&rtc->record));
#ifdef CONFIG_FTRTC010_PCLK
now = (ftrtc010_time() + readl(&rtc->record)) / RTC_DIV_COUNT;
#else /* CONFIG_FTRTC010_EXTCLK */
now = ftrtc010_time() + readl(&rtc->record);
#endif
to_tm(now, tmp);
return 0;
}
/*
* Set the RTC
*/
int rtc_set(struct rtc_time *tmp)
{
unsigned long new;
unsigned long now;
debug("%s(): DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
__func__,
tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
new = mktime(tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_hour,
tmp->tm_min, tmp->tm_sec);
now = ftrtc010_time();
debug("%s(): write %lx to record register\n", __func__, new - now);
writel(new - now, &rtc->record);
return 0;
}
void rtc_reset(void)
{
debug("%s()\n", __func__);
ftrtc010_enable();
}

160
common/package/utils/sysupgrade-helper/src/drivers/rtc/isl1208.c Normal file
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/*
* (C) Copyright 2008
* Tor Krill, Excito Elektronik i Skåne , tor@excito.com
*
* Modelled after the ds1337 driver
*
* 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 (no alarms) for Intersil
* ISL1208 Real Time Clock (RTC).
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <i2c.h>
/*---------------------------------------------------------------------*/
#ifdef DEBUG_RTC
#define DEBUGR(fmt,args...) printf(fmt ,##args)
#else
#define DEBUGR(fmt,args...)
#endif
/*---------------------------------------------------------------------*/
/*
* RTC register addresses
*/
#define RTC_SEC_REG_ADDR 0x0
#define RTC_MIN_REG_ADDR 0x1
#define RTC_HR_REG_ADDR 0x2
#define RTC_DATE_REG_ADDR 0x3
#define RTC_MON_REG_ADDR 0x4
#define RTC_YR_REG_ADDR 0x5
#define RTC_DAY_REG_ADDR 0x6
#define RTC_STAT_REG_ADDR 0x7
/*
* RTC control register bits
*/
/*
* RTC status register bits
*/
#define RTC_STAT_BIT_ARST 0x80 /* AUTO RESET ENABLE BIT */
#define RTC_STAT_BIT_XTOSCB 0x40 /* CRYSTAL OSCILLATOR ENABLE BIT */
#define RTC_STAT_BIT_WRTC 0x10 /* WRITE RTC ENABLE BIT */
#define RTC_STAT_BIT_ALM 0x04 /* ALARM BIT */
#define RTC_STAT_BIT_BAT 0x02 /* BATTERY BIT */
#define RTC_STAT_BIT_RTCF 0x01 /* REAL TIME CLOCK FAIL BIT */
static uchar rtc_read (uchar reg);
static void rtc_write (uchar reg, uchar val);
/*
* Get the current time from the RTC
*/
int rtc_get (struct rtc_time *tmp)
{
int rel = 0;
uchar sec, min, hour, mday, wday, mon, year, status;
status = rtc_read (RTC_STAT_REG_ADDR);
sec = rtc_read (RTC_SEC_REG_ADDR);
min = rtc_read (RTC_MIN_REG_ADDR);
hour = rtc_read (RTC_HR_REG_ADDR);
wday = rtc_read (RTC_DAY_REG_ADDR);
mday = rtc_read (RTC_DATE_REG_ADDR);
mon = rtc_read (RTC_MON_REG_ADDR);
year = rtc_read (RTC_YR_REG_ADDR);
DEBUGR ("Get RTC year: %02x mon: %02x mday: %02x wday: %02x "
"hr: %02x min: %02x sec: %02x status: %02x\n",
year, mon, mday, wday, hour, min, sec, status);
if (status & RTC_STAT_BIT_RTCF) {
printf ("### Warning: RTC oscillator has stopped\n");
rtc_write(RTC_STAT_REG_ADDR,
rtc_read(RTC_STAT_REG_ADDR) &~ (RTC_STAT_BIT_BAT|RTC_STAT_BIT_RTCF));
rel = -1;
}
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)+2000;
tmp->tm_wday = bcd2bin (wday & 0x07);
tmp->tm_yday = 0;
tmp->tm_isdst= 0;
DEBUGR ("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);
return rel;
}
/*
* Set the RTC
*/
int rtc_set (struct rtc_time *tmp)
{
DEBUGR ("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);
/* enable write */
rtc_write(RTC_STAT_REG_ADDR,
rtc_read(RTC_STAT_REG_ADDR) | RTC_STAT_BIT_WRTC);
rtc_write (RTC_YR_REG_ADDR, bin2bcd (tmp->tm_year % 100));
rtc_write (RTC_MON_REG_ADDR, bin2bcd (tmp->tm_mon));
rtc_write (RTC_DAY_REG_ADDR, bin2bcd (tmp->tm_wday));
rtc_write (RTC_DATE_REG_ADDR, bin2bcd (tmp->tm_mday));
rtc_write (RTC_HR_REG_ADDR, bin2bcd (tmp->tm_hour) | 0x80 ); /* 24h clock */
rtc_write (RTC_MIN_REG_ADDR, bin2bcd (tmp->tm_min));
rtc_write (RTC_SEC_REG_ADDR, bin2bcd (tmp->tm_sec));
/* disable write */
rtc_write(RTC_STAT_REG_ADDR,
rtc_read(RTC_STAT_REG_ADDR) & ~RTC_STAT_BIT_WRTC);
return 0;
}
void rtc_reset (void)
{
}
/*
* Helper functions
*/
static uchar rtc_read (uchar reg)
{
return (i2c_reg_read (CONFIG_SYS_I2C_RTC_ADDR, reg));
}
static void rtc_write (uchar reg, uchar val)
{
i2c_reg_write (CONFIG_SYS_I2C_RTC_ADDR, reg, val);
}

184
common/package/utils/sysupgrade-helper/src/drivers/rtc/m41t11.c Normal file
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/*
* (C) Copyright 2002
* Andrew May, Viasat Inc, amay@viasat.com
*
* 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
*/
/*
* M41T11 Serial Access Timekeeper(R) SRAM
* can you believe a trademark on that?
*/
/* #define DEBUG 1 */
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <i2c.h>
/*
I Don't have an example config file but this
is what should be done.
#define CONFIG_RTC_M41T11 1
#define CONFIG_SYS_I2C_RTC_ADDR 0x68
#if 0
#define CONFIG_SYS_M41T11_EXT_CENTURY_DATA
#else
#define CONFIG_SYS_M41T11_BASE_YEAR 2000
#endif
*/
#if defined(CONFIG_SYS_I2C_RTC_ADDR) && defined(CONFIG_CMD_DATE)
/* ------------------------------------------------------------------------- */
/*
these are simple defines for the chip local to here so they aren't too
verbose
DAY/DATE aren't nice but that is how they are on the data sheet
*/
#define RTC_SEC_ADDR 0x0
#define RTC_MIN_ADDR 0x1
#define RTC_HOUR_ADDR 0x2
#define RTC_DAY_ADDR 0x3
#define RTC_DATE_ADDR 0x4
#define RTC_MONTH_ADDR 0x5
#define RTC_YEARS_ADDR 0x6
#define RTC_REG_CNT 7
#define RTC_CONTROL_ADDR 0x7
#ifndef CONFIG_SYS_M41T11_EXT_CENTURY_DATA
#define REG_CNT (RTC_REG_CNT+1)
/*
you only get 00-99 for the year we will asume you
want from the year 2000 if you don't set the config
*/
#ifndef CONFIG_SYS_M41T11_BASE_YEAR
#define CONFIG_SYS_M41T11_BASE_YEAR 2000
#endif
#else
/* we will store extra year info in byte 9*/
#define M41T11_YEAR_DATA 0x8
#define M41T11_YEAR_SIZE 1
#define REG_CNT (RTC_REG_CNT+1+M41T11_YEAR_SIZE)
#endif
#define M41T11_STORAGE_SZ (64-REG_CNT)
int rtc_get (struct rtc_time *tmp)
{
int rel = 0;
uchar data[RTC_REG_CNT];
i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_SEC_ADDR, 1, data, RTC_REG_CNT);
if( data[RTC_SEC_ADDR] & 0x80 ){
printf( "m41t11 RTC Clock stopped!!!\n" );
rel = -1;
}
tmp->tm_sec = bcd2bin (data[RTC_SEC_ADDR] & 0x7F);
tmp->tm_min = bcd2bin (data[RTC_MIN_ADDR] & 0x7F);
tmp->tm_hour = bcd2bin (data[RTC_HOUR_ADDR] & 0x3F);
tmp->tm_mday = bcd2bin (data[RTC_DATE_ADDR] & 0x3F);
tmp->tm_mon = bcd2bin (data[RTC_MONTH_ADDR]& 0x1F);
#ifndef CONFIG_SYS_M41T11_EXT_CENTURY_DATA
tmp->tm_year = CONFIG_SYS_M41T11_BASE_YEAR
+ bcd2bin(data[RTC_YEARS_ADDR])
+ ((data[RTC_HOUR_ADDR]&0x40) ? 100 : 0);
#else
{
unsigned char cent;
i2c_read(CONFIG_SYS_I2C_RTC_ADDR, M41T11_YEAR_DATA, 1, &cent, M41T11_YEAR_SIZE);
if( !(data[RTC_HOUR_ADDR] & 0x80) ){
printf( "m41t11 RTC: cann't keep track of years without CEB set\n" );
rel = -1;
}
if( (cent & 0x1) != ((data[RTC_HOUR_ADDR]&0x40)>>7) ){
/*century flip store off new year*/
cent += 1;
i2c_write(CONFIG_SYS_I2C_RTC_ADDR, M41T11_YEAR_DATA, 1, &cent, M41T11_YEAR_SIZE);
}
tmp->tm_year =((int)cent*100)+bcd2bin(data[RTC_YEARS_ADDR]);
}
#endif
tmp->tm_wday = bcd2bin (data[RTC_DAY_ADDR] & 0x07);
tmp->tm_yday = 0;
tmp->tm_isdst= 0;
debug ( "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);
return rel;
}
int rtc_set (struct rtc_time *tmp)
{
uchar data[RTC_REG_CNT];
debug ( "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);
data[RTC_SEC_ADDR] = bin2bcd(tmp->tm_sec) & 0x7F;/*just in case*/
data[RTC_MIN_ADDR] = bin2bcd(tmp->tm_min);
data[RTC_HOUR_ADDR] = bin2bcd(tmp->tm_hour) & 0x3F;/*handle cent stuff later*/
data[RTC_DATE_ADDR] = bin2bcd(tmp->tm_mday) & 0x3F;
data[RTC_MONTH_ADDR] = bin2bcd(tmp->tm_mon);
data[RTC_DAY_ADDR] = bin2bcd(tmp->tm_wday) & 0x07;
data[RTC_HOUR_ADDR] |= 0x80;/*we will always use CEB*/
data[RTC_YEARS_ADDR] = bin2bcd(tmp->tm_year%100);/*same thing either way*/
#ifndef CONFIG_SYS_M41T11_EXT_CENTURY_DATA
if( ((tmp->tm_year - CONFIG_SYS_M41T11_BASE_YEAR) > 200) ||
(tmp->tm_year < CONFIG_SYS_M41T11_BASE_YEAR) ){
printf( "m41t11 RTC setting year out of range!!need recompile\n" );
}
data[RTC_HOUR_ADDR] |= (tmp->tm_year - CONFIG_SYS_M41T11_BASE_YEAR) > 100 ? 0x40 : 0;
#else
{
unsigned char cent;
cent = tmp->tm_year ? tmp->tm_year / 100 : 0;
data[RTC_HOUR_ADDR] |= (cent & 0x1) ? 0x40 : 0;
i2c_write(CONFIG_SYS_I2C_RTC_ADDR, M41T11_YEAR_DATA, 1, &cent, M41T11_YEAR_SIZE);
}
#endif
i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_SEC_ADDR, 1, data, RTC_REG_CNT);
return 0;
}
void rtc_reset (void)
{
unsigned char val;
/* clear all control & status registers */
i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_SEC_ADDR, 1, &val, 1);
val = val & 0x7F;/*make sure we are running*/
i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_SEC_ADDR, 1, &val, RTC_REG_CNT);
i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_CONTROL_ADDR, 1, &val, 1);
val = val & 0x3F;/*turn off freq test keep calibration*/
i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_CONTROL_ADDR, 1, &val, 1);
}
#endif

254
common/package/utils/sysupgrade-helper/src/drivers/rtc/m41t60.c Normal file
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/*
* (C) Copyright 2007
* Larry Johnson, lrj@acm.org
*
* based on rtc/m41t11.c which is ...
*
* (C) Copyright 2002
* Andrew May, Viasat Inc, amay@viasat.com
*
* 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
*/
/*
* STMicroelectronics M41T60 serial access real-time clock
*/
/* #define DEBUG 1 */
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <i2c.h>
#if defined(CONFIG_SYS_I2C_RTC_ADDR) && defined(CONFIG_CMD_DATE)
/*
* Convert between century and "century bits" (CB1 and CB0). These routines
* assume years are in the range 1900 - 2299.
*/
static unsigned char year2cb(unsigned const year)
{
if (year < 1900 || year >= 2300)
printf("M41T60 RTC: year %d out of range\n", year);
return (year / 100) & 0x3;
}
static unsigned cb2year(unsigned const cb)
{
return 1900 + 100 * ((cb + 1) & 0x3);
}
/*
* These are simple defines for the chip local to here so they aren't too
* verbose. DAY/DATE aren't nice but that is how they are on the data sheet.
*/
#define RTC_SEC 0x0
#define RTC_MIN 0x1
#define RTC_HOUR 0x2
#define RTC_DAY 0x3
#define RTC_DATE 0x4
#define RTC_MONTH 0x5
#define RTC_YEAR 0x6
#define RTC_REG_CNT 7
#define RTC_CTRL 0x7
#if defined(DEBUG)
static void rtc_dump(char const *const label)
{
uchar data[8];
if (i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, data, sizeof(data))) {
printf("I2C read failed in rtc_dump()\n");
return;
}
printf("RTC dump %s: %02X-%02X-%02X-%02X-%02X-%02X-%02X-%02X\n",
label, data[0], data[1], data[2], data[3],
data[4], data[5], data[6], data[7]);
}
#else
#define rtc_dump(label)
#endif
static uchar *rtc_validate(void)
{
/*
* This routine uses the OUT bit and the validity of the time values to
* determine whether there has been an initial power-up since the last
* time the routine was run. It assumes that the OUT bit is not being
* used for any other purpose.
*/
static const uchar daysInMonth[0x13] = {
0x00, 0x31, 0x29, 0x31, 0x30, 0x31, 0x30, 0x31,
0x31, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x31, 0x30, 0x31
};
static uchar data[8];
uchar min, date, month, years;
rtc_dump("begin validate");
if (i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, data, sizeof(data))) {
printf("I2C read failed in rtc_validate()\n");
return 0;
}
/*
* If the OUT bit is "1", there has been a loss of power, so stop the
* oscillator so it can be "kick-started" as per data sheet.
*/
if (0x00 != (data[RTC_CTRL] & 0x80)) {
printf("M41T60 RTC clock lost power.\n");
data[RTC_SEC] = 0x80;
if (i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_SEC, 1, data, 1)) {
printf("I2C write failed in rtc_validate()\n");
return 0;
}
}
/*
* If the oscillator is stopped or the date is invalid, then reset the
* OUT bit to "0", reset the date registers, and start the oscillator.
*/
min = data[RTC_MIN] & 0x7F;
date = data[RTC_DATE];
month = data[RTC_MONTH] & 0x3F;
years = data[RTC_YEAR];
if (0x59 < data[RTC_SEC] || 0x09 < (data[RTC_SEC] & 0x0F) ||
0x59 < min || 0x09 < (min & 0x0F) ||
0x23 < data[RTC_HOUR] || 0x09 < (data[RTC_HOUR] & 0x0F) ||
0x07 < data[RTC_DAY] || 0x00 == data[RTC_DAY] ||
0x12 < month ||
0x99 < years || 0x09 < (years & 0x0F) ||
daysInMonth[month] < date || 0x09 < (date & 0x0F) || 0x00 == date ||
(0x29 == date && 0x02 == month &&
((0x00 != (years & 0x03)) ||
(0x00 == years && 0x00 != (data[RTC_MONTH] & 0xC0))))) {
printf("Resetting M41T60 RTC clock.\n");
/*
* Set to 00:00:00 1900-01-01 (Monday)
*/
data[RTC_SEC] = 0x00;
data[RTC_MIN] &= 0x80; /* preserve OFIE bit */
data[RTC_HOUR] = 0x00;
data[RTC_DAY] = 0x02;
data[RTC_DATE] = 0x01;
data[RTC_MONTH] = 0xC1;
data[RTC_YEAR] = 0x00;
data[RTC_CTRL] &= 0x7F; /* reset OUT bit */
if (i2c_write(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, data, sizeof(data))) {
printf("I2C write failed in rtc_validate()\n");
return 0;
}
}
return data;
}
int rtc_get(struct rtc_time *tmp)
{
uchar const *const data = rtc_validate();
if (!data)
return -1;
tmp->tm_sec = bcd2bin(data[RTC_SEC] & 0x7F);
tmp->tm_min = bcd2bin(data[RTC_MIN] & 0x7F);
tmp->tm_hour = bcd2bin(data[RTC_HOUR] & 0x3F);
tmp->tm_mday = bcd2bin(data[RTC_DATE] & 0x3F);
tmp->tm_mon = bcd2bin(data[RTC_MONTH] & 0x1F);
tmp->tm_year = cb2year(data[RTC_MONTH] >> 6) + bcd2bin(data[RTC_YEAR]);
tmp->tm_wday = bcd2bin(data[RTC_DAY] & 0x07) - 1;
tmp->tm_yday = 0;
tmp->tm_isdst = 0;
debug("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);
return 0;
}
int rtc_set(struct rtc_time *tmp)
{
uchar *const data = rtc_validate();
if (!data)
return -1;
debug("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);
data[RTC_SEC] = (data[RTC_SEC] & 0x80) | (bin2bcd(tmp->tm_sec) & 0x7F);
data[RTC_MIN] = (data[RTC_MIN] & 0X80) | (bin2bcd(tmp->tm_min) & 0X7F);
data[RTC_HOUR] = bin2bcd(tmp->tm_hour) & 0x3F;
data[RTC_DATE] = bin2bcd(tmp->tm_mday) & 0x3F;
data[RTC_MONTH] = bin2bcd(tmp->tm_mon) & 0x1F;
data[RTC_YEAR] = bin2bcd(tmp->tm_year % 100);
data[RTC_MONTH] |= year2cb(tmp->tm_year) << 6;
data[RTC_DAY] = bin2bcd(tmp->tm_wday + 1) & 0x07;
if (i2c_write(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, data, RTC_REG_CNT)) {
printf("I2C write failed in rtc_set()\n");
return -1;
}
return 0;
}
void rtc_reset(void)
{
uchar *const data = rtc_validate();
char const *const s = getenv("rtccal");
if (!data)
return;
rtc_dump("begin reset");
/*
* If environmental variable "rtccal" is present, it must be a hex value
* between 0x00 and 0x3F, inclusive. The five least-significan bits
* represent the calibration magnitude, and the sixth bit the sign bit.
* If these do not match the contents of the hardware register, that
* register is updated. The value 0x00 imples no correction. Consult
* the M41T60 documentation for further details.
*/
if (s) {
unsigned long const l = simple_strtoul(s, 0, 16);
if (l <= 0x3F) {
if ((data[RTC_CTRL] & 0x3F) != l) {
printf("Setting RTC calibration to 0x%02lX\n",
l);
data[RTC_CTRL] &= 0xC0;
data[RTC_CTRL] |= (uchar) l;
}
} else
printf("environment parameter \"rtccal\" not valid: "
"ignoring\n");
}
/*
* Turn off frequency test.
*/
data[RTC_CTRL] &= 0xBF;
if (i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_CTRL, 1, data + RTC_CTRL, 1)) {
printf("I2C write failed in rtc_reset()\n");
return;
}
rtc_dump("end reset");
}
#endif /* CONFIG_RTC_M41T60 && CONFIG_SYS_I2C_RTC_ADDR && CONFIG_CMD_DATE */

148
common/package/utils/sysupgrade-helper/src/drivers/rtc/m41t62.c Normal file
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/*
* (C) Copyright 2008
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* based on a the Linux rtc-m41t80.c driver which is:
* Alexander Bigga <ab@mycable.de>, 2006 (c) mycable GmbH
*
* 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 STMicroelectronics M41T62
*/
/* #define DEBUG */
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <i2c.h>
#if defined(CONFIG_CMD_DATE)
#define M41T62_REG_SSEC 0
#define M41T62_REG_SEC 1
#define M41T62_REG_MIN 2
#define M41T62_REG_HOUR 3
#define M41T62_REG_WDAY 4
#define M41T62_REG_DAY 5
#define M41T62_REG_MON 6
#define M41T62_REG_YEAR 7
#define M41T62_REG_ALARM_MON 0xa
#define M41T62_REG_ALARM_DAY 0xb
#define M41T62_REG_ALARM_HOUR 0xc
#define M41T62_REG_ALARM_MIN 0xd
#define M41T62_REG_ALARM_SEC 0xe
#define M41T62_REG_FLAGS 0xf
#define M41T62_DATETIME_REG_SIZE (M41T62_REG_YEAR + 1)
#define M41T62_ALARM_REG_SIZE \
(M41T62_REG_ALARM_SEC + 1 - M41T62_REG_ALARM_MON)
#define M41T62_SEC_ST (1 << 7) /* ST: Stop Bit */
#define M41T62_ALMON_AFE (1 << 7) /* AFE: AF Enable Bit */
#define M41T62_ALMON_SQWE (1 << 6) /* SQWE: SQW Enable Bit */
#define M41T62_ALHOUR_HT (1 << 6) /* HT: Halt Update Bit */
#define M41T62_FLAGS_AF (1 << 6) /* AF: Alarm Flag Bit */
#define M41T62_FLAGS_BATT_LOW (1 << 4) /* BL: Battery Low Bit */
#define M41T62_FEATURE_HT (1 << 0)
#define M41T62_FEATURE_BL (1 << 1)
#define M41T80_ALHOUR_HT (1 << 6) /* HT: Halt Update Bit */
int rtc_get(struct rtc_time *tm)
{
u8 buf[M41T62_DATETIME_REG_SIZE];
i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE);
debug("%s: raw read data - sec=%02x, min=%02x, hr=%02x, "
"mday=%02x, mon=%02x, year=%02x, wday=%02x, y2k=%02x\n",
__FUNCTION__,
buf[0], buf[1], buf[2], buf[3],
buf[4], buf[5], buf[6], buf[7]);
tm->tm_sec = bcd2bin(buf[M41T62_REG_SEC] & 0x7f);
tm->tm_min = bcd2bin(buf[M41T62_REG_MIN] & 0x7f);
tm->tm_hour = bcd2bin(buf[M41T62_REG_HOUR] & 0x3f);
tm->tm_mday = bcd2bin(buf[M41T62_REG_DAY] & 0x3f);
tm->tm_wday = buf[M41T62_REG_WDAY] & 0x07;
tm->tm_mon = bcd2bin(buf[M41T62_REG_MON] & 0x1f);
/* assume 20YY not 19YY, and ignore the Century Bit */
/* U-Boot needs to add 1900 here */
tm->tm_year = bcd2bin(buf[M41T62_REG_YEAR]) + 100 + 1900;
debug("%s: tm is secs=%d, mins=%d, hours=%d, "
"mday=%d, mon=%d, year=%d, wday=%d\n",
__FUNCTION__,
tm->tm_sec, tm->tm_min, tm->tm_hour,
tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
return 0;
}
int rtc_set(struct rtc_time *tm)
{
u8 buf[M41T62_DATETIME_REG_SIZE];
debug("Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_wday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE);
/* Merge time-data and register flags into buf[0..7] */
buf[M41T62_REG_SSEC] = 0;
buf[M41T62_REG_SEC] =
bin2bcd(tm->tm_sec) | (buf[M41T62_REG_SEC] & ~0x7f);
buf[M41T62_REG_MIN] =
bin2bcd(tm->tm_min) | (buf[M41T62_REG_MIN] & ~0x7f);
buf[M41T62_REG_HOUR] =
bin2bcd(tm->tm_hour) | (buf[M41T62_REG_HOUR] & ~0x3f) ;
buf[M41T62_REG_WDAY] =
(tm->tm_wday & 0x07) | (buf[M41T62_REG_WDAY] & ~0x07);
buf[M41T62_REG_DAY] =
bin2bcd(tm->tm_mday) | (buf[M41T62_REG_DAY] & ~0x3f);
buf[M41T62_REG_MON] =
bin2bcd(tm->tm_mon) | (buf[M41T62_REG_MON] & ~0x1f);
/* assume 20YY not 19YY */
buf[M41T62_REG_YEAR] = bin2bcd(tm->tm_year % 100);
if (i2c_write(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE)) {
printf("I2C write failed in %s()\n", __func__);
return -1;
}
return 0;
}
void rtc_reset(void)
{
u8 val;
/*
* M41T82: Make sure HT (Halt Update) bit is cleared.
* This bit is 0 in M41T62 so its save to clear it always.
*/
i2c_read(CONFIG_SYS_I2C_RTC_ADDR, M41T62_REG_ALARM_HOUR, 1, &val, 1);
val &= ~M41T80_ALHOUR_HT;
i2c_write(CONFIG_SYS_I2C_RTC_ADDR, M41T62_REG_ALARM_HOUR, 1, &val, 1);
}
#endif

123
common/package/utils/sysupgrade-helper/src/drivers/rtc/m41t94.c Normal file
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/*
* Driver for ST M41T94 SPI RTC
*
* Taken from the Linux kernel drivier:
* Copyright (C) 2008 Kim B. Heino
*
* Adaptation for U-Boot:
* Copyright (C) 2009
* Albin Tonnerre, Free Electrons <albin.tonnerre@free-electrons.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <common.h>
#include <rtc.h>
#include <spi.h>
static struct spi_slave *slave;
#define M41T94_REG_SECONDS 0x01
#define M41T94_REG_MINUTES 0x02
#define M41T94_REG_HOURS 0x03
#define M41T94_REG_WDAY 0x04
#define M41T94_REG_DAY 0x05
#define M41T94_REG_MONTH 0x06
#define M41T94_REG_YEAR 0x07
#define M41T94_REG_HT 0x0c
#define M41T94_BIT_HALT 0x40
#define M41T94_BIT_STOP 0x80
#define M41T94_BIT_CB 0x40
#define M41T94_BIT_CEB 0x80
int rtc_set(struct rtc_time *tm)
{
u8 buf[8]; /* write cmd + 7 registers */
int ret;
if (!slave) {
slave = spi_setup_slave(CONFIG_M41T94_SPI_BUS,
CONFIG_M41T94_SPI_CS, 1000000,
SPI_MODE_3);
if (!slave)
return -1;
}
spi_claim_bus(slave);
buf[0] = 0x80 | M41T94_REG_SECONDS; /* write time + date */
buf[M41T94_REG_SECONDS] = bin2bcd(tm->tm_sec);
buf[M41T94_REG_MINUTES] = bin2bcd(tm->tm_min);
buf[M41T94_REG_HOURS] = bin2bcd(tm->tm_hour);
buf[M41T94_REG_WDAY] = bin2bcd(tm->tm_wday + 1);
buf[M41T94_REG_DAY] = bin2bcd(tm->tm_mday);
buf[M41T94_REG_MONTH] = bin2bcd(tm->tm_mon + 1);
buf[M41T94_REG_HOURS] |= M41T94_BIT_CEB;
if (tm->tm_year >= 100)
buf[M41T94_REG_HOURS] |= M41T94_BIT_CB;
buf[M41T94_REG_YEAR] = bin2bcd(tm->tm_year % 100);
ret = spi_xfer(slave, 64, buf, NULL, SPI_XFER_BEGIN | SPI_XFER_END);
spi_release_bus(slave);
return ret;
}
int rtc_get(struct rtc_time *tm)
{
u8 buf[2];
int ret, hour;
if (!slave) {
slave = spi_setup_slave(CONFIG_M41T94_SPI_BUS,
CONFIG_M41T94_SPI_CS, 1000000,
SPI_MODE_3);
if (!slave)
return -1;
}
spi_claim_bus(slave);
/* clear halt update bit */
ret = spi_w8r8(slave, M41T94_REG_HT);
if (ret < 0)
return ret;
if (ret & M41T94_BIT_HALT) {
buf[0] = 0x80 | M41T94_REG_HT;
buf[1] = ret & ~M41T94_BIT_HALT;
spi_xfer(slave, 16, buf, NULL, SPI_XFER_BEGIN | SPI_XFER_END);
}
/* clear stop bit */
ret = spi_w8r8(slave, M41T94_REG_SECONDS);
if (ret < 0)
return ret;
if (ret & M41T94_BIT_STOP) {
buf[0] = 0x80 | M41T94_REG_SECONDS;
buf[1] = ret & ~M41T94_BIT_STOP;
spi_xfer(slave, 16, buf, NULL, SPI_XFER_BEGIN | SPI_XFER_END);
}
tm->tm_sec = bcd2bin(spi_w8r8(slave, M41T94_REG_SECONDS));
tm->tm_min = bcd2bin(spi_w8r8(slave, M41T94_REG_MINUTES));
hour = spi_w8r8(slave, M41T94_REG_HOURS);
tm->tm_hour = bcd2bin(hour & 0x3f);
tm->tm_wday = bcd2bin(spi_w8r8(slave, M41T94_REG_WDAY)) - 1;
tm->tm_mday = bcd2bin(spi_w8r8(slave, M41T94_REG_DAY));
tm->tm_mon = bcd2bin(spi_w8r8(slave, M41T94_REG_MONTH)) - 1;
tm->tm_year = bcd2bin(spi_w8r8(slave, M41T94_REG_YEAR));
if ((hour & M41T94_BIT_CB) || !(hour & M41T94_BIT_CEB))
tm->tm_year += 100;
spi_release_bus(slave);
return 0;
}
void rtc_reset(void)
{
/*
* Could not be tested as the reset pin is not wired on
* the sbc35-ag20 board
*/
}

158
common/package/utils/sysupgrade-helper/src/drivers/rtc/m48t35ax.c Normal file
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/*
* (C) Copyright 2001
* Erik Theisen, Wave 7 Optics, etheisen@mindspring.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
*/
/*
* Date & Time support for ST Electronics M48T35Ax RTC
*/
/*#define DEBUG */
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <config.h>
#if defined(CONFIG_CMD_DATE)
static uchar rtc_read (uchar reg);
static void rtc_write (uchar reg, uchar val);
/* ------------------------------------------------------------------------- */
int rtc_get (struct rtc_time *tmp)
{
uchar sec, min, hour, cent_day, date, month, year;
uchar ccr; /* Clock control register */
/* Lock RTC for read using clock control register */
ccr = rtc_read(0);
ccr = ccr | 0x40;
rtc_write(0, ccr);
sec = rtc_read (0x1);
min = rtc_read (0x2);
hour = rtc_read (0x3);
cent_day= rtc_read (0x4);
date = rtc_read (0x5);
month = rtc_read (0x6);
year = rtc_read (0x7);
/* UNLock RTC */
ccr = rtc_read(0);
ccr = ccr & 0xBF;
rtc_write(0, ccr);
debug ( "Get RTC year: %02x month: %02x date: %02x cent_day: %02x "
"hr: %02x min: %02x sec: %02x\n",
year, month, date, cent_day,
hour, min, sec );
tmp->tm_sec = bcd2bin (sec & 0x7F);
tmp->tm_min = bcd2bin (min & 0x7F);
tmp->tm_hour = bcd2bin (hour & 0x3F);
tmp->tm_mday = bcd2bin (date & 0x3F);
tmp->tm_mon = bcd2bin (month & 0x1F);
tmp->tm_year = bcd2bin (year) + ((cent_day & 0x10) ? 2000 : 1900);
tmp->tm_wday = bcd2bin (cent_day & 0x07);
tmp->tm_yday = 0;
tmp->tm_isdst= 0;
debug ( "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);
return 0;
}
int rtc_set (struct rtc_time *tmp)
{
uchar ccr; /* Clock control register */
uchar century;
debug ( "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);
/* Lock RTC for write using clock control register */
ccr = rtc_read(0);
ccr = ccr | 0x80;
rtc_write(0, ccr);
rtc_write (0x07, bin2bcd(tmp->tm_year % 100));
rtc_write (0x06, bin2bcd(tmp->tm_mon));
rtc_write (0x05, bin2bcd(tmp->tm_mday));
century = ((tmp->tm_year >= 2000) ? 0x10 : 0) | 0x20;
rtc_write (0x04, bin2bcd(tmp->tm_wday) | century);
rtc_write (0x03, bin2bcd(tmp->tm_hour));
rtc_write (0x02, bin2bcd(tmp->tm_min ));
rtc_write (0x01, bin2bcd(tmp->tm_sec ));
/* UNLock RTC */
ccr = rtc_read(0);
ccr = ccr & 0x7F;
rtc_write(0, ccr);
return 0;
}
void rtc_reset (void)
{
uchar val;
/* Clear all clock control registers */
rtc_write (0x0, 0x80); /* No Read Lock or calibration */
/* Clear stop bit */
val = rtc_read (0x1);
val &= 0x7f;
rtc_write(0x1, val);
/* Enable century / disable frequency test */
val = rtc_read (0x4);
val = (val & 0xBF) | 0x20;
rtc_write(0x4, val);
/* Clear write lock */
rtc_write(0x0, 0);
}
/* ------------------------------------------------------------------------- */
static uchar rtc_read (uchar reg)
{
uchar val;
val = *(unsigned char *)
((CONFIG_SYS_NVRAM_BASE_ADDR + CONFIG_SYS_NVRAM_SIZE - 8) + reg);
return val;
}
static void rtc_write (uchar reg, uchar val)
{
*(unsigned char *)
((CONFIG_SYS_NVRAM_BASE_ADDR + CONFIG_SYS_NVRAM_SIZE - 8) + reg) = val;
}
#endif

125
common/package/utils/sysupgrade-helper/src/drivers/rtc/max6900.c Normal file
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/*
* (C) Copyright 2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.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 MAXIM MAX6900 RTC
*/
/* #define DEBUG */
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <i2c.h>
#if defined(CONFIG_CMD_DATE)
#ifndef CONFIG_SYS_I2C_RTC_ADDR
#define CONFIG_SYS_I2C_RTC_ADDR 0x50
#endif
/* ------------------------------------------------------------------------- */
static uchar rtc_read (uchar reg)
{
return (i2c_reg_read (CONFIG_SYS_I2C_RTC_ADDR, reg));
}
static void rtc_write (uchar reg, uchar val)
{
i2c_reg_write (CONFIG_SYS_I2C_RTC_ADDR, reg, val);
udelay(2500);
}
/* ------------------------------------------------------------------------- */
int rtc_get (struct rtc_time *tmp)
{
uchar sec, min, hour, mday, wday, mon, cent, year;
int retry = 1;
do {
sec = rtc_read (0x80);
min = rtc_read (0x82);
hour = rtc_read (0x84);
mday = rtc_read (0x86);
mon = rtc_read (0x88);
wday = rtc_read (0x8a);
year = rtc_read (0x8c);
cent = rtc_read (0x92);
/*
* Check for seconds rollover
*/
if ((sec != 59) || (rtc_read(0x80) == sec)){
retry = 0;
}
} while (retry);
debug ( "Get RTC year: %02x mon: %02x cent: %02x mday: %02x wday: %02x "
"hr: %02x min: %02x sec: %02x\n",
year, mon, cent, mday, wday,
hour, min, sec );
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) + bcd2bin(cent) * 100;
tmp->tm_wday = bcd2bin (wday & 0x07);
tmp->tm_yday = 0;
tmp->tm_isdst= 0;
debug ( "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);
return 0;
}
int rtc_set (struct rtc_time *tmp)
{
debug ( "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);
rtc_write (0x9E, 0x00);
rtc_write (0x80, 0); /* Clear seconds to ensure no rollover */
rtc_write (0x92, bin2bcd(tmp->tm_year / 100));
rtc_write (0x8c, bin2bcd(tmp->tm_year % 100));
rtc_write (0x8a, bin2bcd(tmp->tm_wday));
rtc_write (0x88, bin2bcd(tmp->tm_mon));
rtc_write (0x86, bin2bcd(tmp->tm_mday));
rtc_write (0x84, bin2bcd(tmp->tm_hour));
rtc_write (0x82, bin2bcd(tmp->tm_min ));
rtc_write (0x80, bin2bcd(tmp->tm_sec ));
return 0;
}
void rtc_reset (void)
{
}
#endif

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/*
* Copyright (C) 2008, Guennadi Liakhovetski <lg@denx.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
*/
#include <common.h>
#include <rtc.h>
#include <spi.h>
#include <pmic.h>
#include <fsl_pmic.h>
int rtc_get(struct rtc_time *rtc)
{
u32 day1, day2, time;
int tim, i = 0;
struct pmic *p = get_pmic();
int ret;
do {
ret = pmic_reg_read(p, REG_RTC_DAY, &day1);
if (ret < 0)
return -1;
ret = pmic_reg_read(p, REG_RTC_TIME, &time);
if (ret < 0)
return -1;
ret = pmic_reg_read(p, REG_RTC_DAY, &day2);
if (ret < 0)
return -1;
} while (day1 != day2 && i++ < 3);
tim = day1 * 86400 + time;
to_tm(tim, rtc);
rtc->tm_yday = 0;
rtc->tm_isdst = 0;
return 0;
}
int rtc_set(struct rtc_time *rtc)
{
u32 time, day;
struct pmic *p = get_pmic();
time = mktime(rtc->tm_year, rtc->tm_mon, rtc->tm_mday,
rtc->tm_hour, rtc->tm_min, rtc->tm_sec);
day = time / 86400;
time %= 86400;
pmic_reg_write(p, REG_RTC_DAY, day);
pmic_reg_write(p, REG_RTC_TIME, time);
return 0;
}
void rtc_reset(void)
{
}

168
common/package/utils/sysupgrade-helper/src/drivers/rtc/mc146818.c Normal file
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/*
* (C) Copyright 2001
* Denis Peter MPL AG Switzerland. d.peter@mpl.ch
*
* 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 MC146818 (PIXX4) RTC
*/
/*#define DEBUG*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#ifdef __I386__
#include <asm/io.h>
#define in8(p) inb(p)
#define out8(p, v) outb(v, p)
#endif
#if defined(CONFIG_CMD_DATE)
static uchar rtc_read (uchar reg);
static void rtc_write (uchar reg, uchar val);
#define RTC_PORT_MC146818 CONFIG_SYS_ISA_IO_BASE_ADDRESS + 0x70
#define RTC_SECONDS 0x00
#define RTC_SECONDS_ALARM 0x01
#define RTC_MINUTES 0x02
#define RTC_MINUTES_ALARM 0x03
#define RTC_HOURS 0x04
#define RTC_HOURS_ALARM 0x05
#define RTC_DAY_OF_WEEK 0x06
#define RTC_DATE_OF_MONTH 0x07
#define RTC_MONTH 0x08
#define RTC_YEAR 0x09
#define RTC_CONFIG_A 0x0A
#define RTC_CONFIG_B 0x0B
#define RTC_CONFIG_C 0x0C
#define RTC_CONFIG_D 0x0D
/* ------------------------------------------------------------------------- */
int rtc_get (struct rtc_time *tmp)
{
uchar sec, min, hour, mday, wday, mon, year;
/* here check if rtc can be accessed */
while((rtc_read(RTC_CONFIG_A)&0x80)==0x80);
sec = rtc_read (RTC_SECONDS);
min = rtc_read (RTC_MINUTES);
hour = rtc_read (RTC_HOURS);
mday = rtc_read (RTC_DATE_OF_MONTH);
wday = rtc_read (RTC_DAY_OF_WEEK);
mon = rtc_read (RTC_MONTH);
year = rtc_read (RTC_YEAR);
#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 );
printf ( "Alarms: month: %02x hour: %02x min: %02x sec: %02x\n",
rtc_read (RTC_CONFIG_D) & 0x3F,
rtc_read (RTC_HOURS_ALARM),
rtc_read (RTC_MINUTES_ALARM),
rtc_read (RTC_SECONDS_ALARM) );
#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
return 0;
}
int rtc_set (struct rtc_time *tmp)
{
#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
rtc_write(RTC_CONFIG_B,0x82); /* 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_DATE_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 ));
rtc_write(RTC_CONFIG_B,0x02); /* enables the RTC to update the regs */
return 0;
}
void rtc_reset (void)
{
rtc_write(RTC_CONFIG_B,0x82); /* disables the RTC to update the regs */
rtc_write(RTC_CONFIG_A,0x20); /* Normal OP */
rtc_write(RTC_CONFIG_B,0x00);
rtc_write(RTC_CONFIG_B,0x00);
rtc_write(RTC_CONFIG_B,0x02); /* enables the RTC to update the regs */
}
/* ------------------------------------------------------------------------- */
#ifdef CONFIG_SYS_RTC_REG_BASE_ADDR
/*
* use direct memory access
*/
static uchar rtc_read (uchar reg)
{
return(in8(CONFIG_SYS_RTC_REG_BASE_ADDR+reg));
}
static void rtc_write (uchar reg, uchar val)
{
out8(CONFIG_SYS_RTC_REG_BASE_ADDR+reg, val);
}
#else
static uchar rtc_read (uchar reg)
{
out8(RTC_PORT_MC146818,reg);
return(in8(RTC_PORT_MC146818+1));
}
static void rtc_write (uchar reg, uchar val)
{
out8(RTC_PORT_MC146818,reg);
out8(RTC_PORT_MC146818+1,val);
}
#endif
#endif

125
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/*
* 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
*/
#include <common.h>
#if defined(CONFIG_CMD_DATE)
#include <command.h>
#include <rtc.h>
#include <asm/immap.h>
#include <asm/rtc.h>
#undef RTC_DEBUG
#ifndef CONFIG_SYS_MCFRTC_BASE
#error RTC_BASE is not defined!
#endif
#define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
#define STARTOFTIME 1970
int rtc_get(struct rtc_time *tmp)
{
volatile rtc_t *rtc = (rtc_t *) (CONFIG_SYS_MCFRTC_BASE);
int rtc_days, rtc_hrs, rtc_mins;
int tim;
rtc_days = rtc->days;
rtc_hrs = rtc->hourmin >> 8;
rtc_mins = RTC_HOURMIN_MINUTES(rtc->hourmin);
tim = (rtc_days * 24) + rtc_hrs;
tim = (tim * 60) + rtc_mins;
tim = (tim * 60) + rtc->seconds;
to_tm(tim, tmp);
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
return 0;
}
int rtc_set(struct rtc_time *tmp)
{
volatile rtc_t *rtc = (rtc_t *) (CONFIG_SYS_MCFRTC_BASE);
static int month_days[12] = {
31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
};
int days, i, months;
if (tmp->tm_year > 2037) {
printf("Unable to handle. Exceeding integer limitation!\n");
tmp->tm_year = 2027;
}
#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
/* calculate days by years */
for (i = STARTOFTIME, days = 0; i < tmp->tm_year; i++) {
days += 365 + isleap(i);
}
/* calculate days by months */
months = tmp->tm_mon - 1;
for (i = 0; i < months; i++) {
days += month_days[i];
if (i == 1)
days += isleap(i);
}
days += tmp->tm_mday - 1;
rtc->days = days;
rtc->hourmin = (tmp->tm_hour << 8) | tmp->tm_min;
rtc->seconds = tmp->tm_sec;
return 0;
}
void rtc_reset(void)
{
volatile rtc_t *rtc = (rtc_t *) (CONFIG_SYS_MCFRTC_BASE);
if ((rtc->cr & RTC_CR_EN) == 0) {
printf("real-time-clock was stopped. Now starting...\n");
rtc->cr |= RTC_CR_EN;
}
rtc->cr |= RTC_CR_SWR;
}
#endif /* CONFIG_MCFRTC && CONFIG_CMD_DATE */

210
common/package/utils/sysupgrade-helper/src/drivers/rtc/mk48t59.c Normal file
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/*
* (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_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_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
/* ------------------------------------------------------------------------- */
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)
/* ------------------------------------------------------------------------- */
int 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
return 0;
}
int 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 */
return 0;
}
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

144
common/package/utils/sysupgrade-helper/src/drivers/rtc/mpc5xxx.c Normal file
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/*
* (C) Copyright 2004
* Reinhard Meyer, EMK Elektronik GmbH
* r.meyer@emk-elektronik.de
* www.emk-elektronik.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 internal RTC of MPC52xx
*****************************************************************************/
/*#define DEBUG*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#if defined(CONFIG_CMD_DATE)
/*****************************************************************************
* this structure should be defined in mpc5200.h ...
*****************************************************************************/
typedef struct rtc5200 {
volatile ulong tsr; /* MBAR+0x800: time set register */
volatile ulong dsr; /* MBAR+0x804: data set register */
volatile ulong nysr; /* MBAR+0x808: new year and stopwatch register */
volatile ulong aier; /* MBAR+0x80C: alarm and interrupt enable register */
volatile ulong ctr; /* MBAR+0x810: current time register */
volatile ulong cdr; /* MBAR+0x814: current data register */
volatile ulong asir; /* MBAR+0x818: alarm and stopwatch interrupt register */
volatile ulong piber; /* MBAR+0x81C: periodic interrupt and bus error register */
volatile ulong trdr; /* MBAR+0x820: test register/divides register */
} RTC5200;
#define RTC_SET 0x02000000
#define RTC_PAUSE 0x01000000
/*****************************************************************************
* get time
*****************************************************************************/
int rtc_get (struct rtc_time *tmp)
{
RTC5200 *rtc = (RTC5200 *) (CONFIG_SYS_MBAR+0x800);
ulong time, date, time2;
/* read twice to avoid getting a funny time when the second is just changing */
do {
time = rtc->ctr;
date = rtc->cdr;
time2 = rtc->ctr;
} while (time != time2);
tmp->tm_year = date & 0xfff;
tmp->tm_mon = (date >> 24) & 0xf;
tmp->tm_mday = (date >> 16) & 0x1f;
tmp->tm_wday = (date >> 21) & 7;
/* sunday is 7 in 5200 but 0 in rtc_time */
if (tmp->tm_wday == 7)
tmp->tm_wday = 0;
tmp->tm_hour = (time >> 16) & 0x1f;
tmp->tm_min = (time >> 8) & 0x3f;
tmp->tm_sec = time & 0x3f;
debug ( "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);
return 0;
}
/*****************************************************************************
* set time
*****************************************************************************/
int rtc_set (struct rtc_time *tmp)
{
RTC5200 *rtc = (RTC5200 *) (CONFIG_SYS_MBAR+0x800);
ulong time, date, year;
debug ( "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);
time = (tmp->tm_hour << 16) | (tmp->tm_min << 8) | tmp->tm_sec;
date = (tmp->tm_mon << 16) | tmp->tm_mday;
if (tmp->tm_wday == 0)
date |= (7 << 8);
else
date |= (tmp->tm_wday << 8);
year = tmp->tm_year;
/* mask unwanted bits that might show up when rtc_time is corrupt */
time &= 0x001f3f3f;
date &= 0x001f071f;
year &= 0x00000fff;
/* pause and set the RTC */
rtc->nysr = year;
rtc->dsr = date | RTC_PAUSE;
udelay (1000);
rtc->dsr = date | RTC_PAUSE | RTC_SET;
udelay (1000);
rtc->dsr = date | RTC_PAUSE;
udelay (1000);
rtc->dsr = date;
udelay (1000);
rtc->tsr = time | RTC_PAUSE;
udelay (1000);
rtc->tsr = time | RTC_PAUSE | RTC_SET;
udelay (1000);
rtc->tsr = time | RTC_PAUSE;
udelay (1000);
rtc->tsr = time;
udelay (1000);
return 0;
}
/*****************************************************************************
* reset rtc circuit
*****************************************************************************/
void rtc_reset (void)
{
return; /* nothing to do */
}
#endif

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/*
* (C) Copyright 2001
* Wolfgang Denk, DENX Software Engineering, wd@denx.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 internal RTC of MPC8xx
*/
/*#define DEBUG*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#if defined(CONFIG_CMD_DATE)
/* ------------------------------------------------------------------------- */
int rtc_get (struct rtc_time *tmp)
{
volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
ulong tim;
tim = immr->im_sit.sit_rtc;
to_tm (tim, tmp);
debug ( "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);
return 0;
}
int rtc_set (struct rtc_time *tmp)
{
volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
ulong tim;
debug ( "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);
tim = mktime (tmp->tm_year, tmp->tm_mon, tmp->tm_mday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
immr->im_sitk.sitk_rtck = KAPWR_KEY;
immr->im_sit.sit_rtc = tim;
return 0;
}
void rtc_reset (void)
{
return; /* nothing to do */
}
#endif

125
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/*
* Copyright (C) 2011
* Jason Cooper <u-boot@lakedaemon.net>
*
* 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 Marvell Integrated RTC
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <asm/io.h>
#include "mvrtc.h"
/* This RTC does not support century, so we assume 20 */
#define CENTURY 20
int rtc_get(struct rtc_time *t)
{
u32 time;
u32 date;
struct mvrtc_registers *mvrtc_regs;
mvrtc_regs = (struct mvrtc_registers *)KW_RTC_BASE;
/* read the time register */
time = readl(&mvrtc_regs->time);
/* read the date register */
date = readl(&mvrtc_regs->date);
/* test for 12 hour clock (can't tell if it's am/pm) */
if (time & MVRTC_HRFMT_MSK) {
printf("Error: RTC in 12 hour mode, can't determine AM/PM.\n");
return -1;
}
/* time */
t->tm_sec = bcd2bin((time >> MVRTC_SEC_SFT) & MVRTC_SEC_MSK);
t->tm_min = bcd2bin((time >> MVRTC_MIN_SFT) & MVRTC_MIN_MSK);
t->tm_hour = bcd2bin((time >> MVRTC_HOUR_SFT) & MVRTC_HOUR_MSK);
t->tm_wday = bcd2bin((time >> MVRTC_DAY_SFT) & MVRTC_DAY_MSK);
t->tm_wday--;
/* date */
t->tm_mday = bcd2bin((date >> MVRTC_DATE_SFT) & MVRTC_DATE_MSK);
t->tm_mon = bcd2bin((date >> MVRTC_MON_SFT) & MVRTC_MON_MSK);
t->tm_year = bcd2bin((date >> MVRTC_YEAR_SFT) & MVRTC_YEAR_MSK);
t->tm_year += CENTURY * 100;
/* not supported in this RTC */
t->tm_yday = 0;
t->tm_isdst = 0;
return 0;
}
int rtc_set(struct rtc_time *t)
{
u32 time = 0; /* sets hour format bit to zero, 24hr format. */
u32 date = 0;
struct mvrtc_registers *mvrtc_regs;
mvrtc_regs = (struct mvrtc_registers *)KW_RTC_BASE;
/* check that this code isn't 80+ years old ;-) */
if ((t->tm_year / 100) != CENTURY)
printf("Warning: Only century %d supported.\n", CENTURY);
/* time */
time |= (bin2bcd(t->tm_sec) & MVRTC_SEC_MSK) << MVRTC_SEC_SFT;
time |= (bin2bcd(t->tm_min) & MVRTC_MIN_MSK) << MVRTC_MIN_SFT;
time |= (bin2bcd(t->tm_hour) & MVRTC_HOUR_MSK) << MVRTC_HOUR_SFT;
time |= (bin2bcd(t->tm_wday + 1) & MVRTC_DAY_MSK) << MVRTC_DAY_SFT;
/* date */
date |= (bin2bcd(t->tm_mday) & MVRTC_DATE_MSK) << MVRTC_DATE_SFT;
date |= (bin2bcd(t->tm_mon) & MVRTC_MON_MSK) << MVRTC_MON_SFT;
date |= (bin2bcd(t->tm_year % 100) & MVRTC_YEAR_MSK) << MVRTC_YEAR_SFT;
/* write the time register */
writel(time, &mvrtc_regs->time);
/* write the date register */
writel(date, &mvrtc_regs->date);
return 0;
}
void rtc_reset(void)
{
u32 time;
u32 sec;
struct mvrtc_registers *mvrtc_regs;
mvrtc_regs = (struct mvrtc_registers *)KW_RTC_BASE;
/* no init routine for this RTC needed, just check that it's working */
time = readl(&mvrtc_regs->time);
sec = bcd2bin((time >> MVRTC_SEC_SFT) & MVRTC_SEC_MSK);
udelay(1000000);
time = readl(&mvrtc_regs->time);
if (sec == bcd2bin((time >> MVRTC_SEC_SFT) & MVRTC_SEC_MSK))
printf("Error: RTC did not increment.\n");
}

65
common/package/utils/sysupgrade-helper/src/drivers/rtc/mvrtc.h Normal file
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/*
* Copyright (C) 2011
* Jason Cooper <u-boot@lakedaemon.net>
*
* 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 Marvell Integrated RTC
*/
#ifndef _MVRTC_H_
#define _MVRTC_H_
#include <asm/arch/kirkwood.h>
#include <compiler.h>
/* RTC registers */
struct mvrtc_registers {
u32 time;
u32 date;
};
/* time register */
#define MVRTC_SEC_SFT 0
#define MVRTC_SEC_MSK 0x7f
#define MVRTC_MIN_SFT 8
#define MVRTC_MIN_MSK 0x7f
#define MVRTC_HOUR_SFT 16
#define MVRTC_HOUR_MSK 0x3f
#define MVRTC_DAY_SFT 24
#define MVRTC_DAY_MSK 0x7
/*
* Hour format bit
* 1 = 12 hour clock
* 0 = 24 hour clock
*/
#define MVRTC_HRFMT_MSK 0x00400000
/* date register */
#define MVRTC_DATE_SFT 0
#define MVRTC_DATE_MSK 0x3f
#define MVRTC_MON_SFT 8
#define MVRTC_MON_MSK 0x1f
#define MVRTC_YEAR_SFT 16
#define MVRTC_YEAR_MSK 0xff
#endif

86
common/package/utils/sysupgrade-helper/src/drivers/rtc/mxsrtc.c Normal file
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/*
* Freescale i.MX28 RTC Driver
*
* Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
* on behalf of DENX Software Engineering GmbH
*
* 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
*
*/
#include <common.h>
#include <rtc.h>
#include <asm/io.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/sys_proto.h>
#define MXS_RTC_MAX_TIMEOUT 1000000
/* Set time in seconds since 1970-01-01 */
int mxs_rtc_set_time(uint32_t secs)
{
struct mx28_rtc_regs *rtc_regs = (struct mx28_rtc_regs *)MXS_RTC_BASE;
int ret;
writel(secs, &rtc_regs->hw_rtc_seconds);
/*
* The 0x80 here means seconds were copied to analog. This information
* is taken from the linux kernel driver for the STMP37xx RTC since
* documentation doesn't mention it.
*/
ret = mx28_wait_mask_clr(&rtc_regs->hw_rtc_stat_reg,
0x80 << RTC_STAT_STALE_REGS_OFFSET, MXS_RTC_MAX_TIMEOUT);
if (ret)
printf("MXS RTC: Timeout waiting for update\n");
return ret;
}
int rtc_get(struct rtc_time *time)
{
struct mx28_rtc_regs *rtc_regs = (struct mx28_rtc_regs *)MXS_RTC_BASE;
uint32_t secs;
secs = readl(&rtc_regs->hw_rtc_seconds);
to_tm(secs, time);
return 0;
}
int rtc_set(struct rtc_time *time)
{
uint32_t secs;
secs = mktime(time->tm_year, time->tm_mon, time->tm_mday,
time->tm_hour, time->tm_min, time->tm_sec);
return mxs_rtc_set_time(secs);
}
void rtc_reset(void)
{
struct mx28_rtc_regs *rtc_regs = (struct mx28_rtc_regs *)MXS_RTC_BASE;
int ret;
/* Set time to 1970-01-01 */
mxs_rtc_set_time(0);
/* Reset the RTC block */
ret = mx28_reset_block(&rtc_regs->hw_rtc_ctrl_reg);
if (ret)
printf("MXS RTC: Block reset timeout\n");
}

138
common/package/utils/sysupgrade-helper/src/drivers/rtc/pcf8563.c Normal file
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/*
* (C) Copyright 2001
* Wolfgang Denk, DENX Software Engineering, wd@denx.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 Philips PCF8563 RTC
*/
/* #define DEBUG */
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <i2c.h>
#if defined(CONFIG_CMD_DATE)
static uchar rtc_read (uchar reg);
static void rtc_write (uchar reg, uchar val);
/* ------------------------------------------------------------------------- */
int rtc_get (struct rtc_time *tmp)
{
int rel = 0;
uchar sec, min, hour, mday, wday, mon_cent, year;
sec = rtc_read (0x02);
min = rtc_read (0x03);
hour = rtc_read (0x04);
mday = rtc_read (0x05);
wday = rtc_read (0x06);
mon_cent= rtc_read (0x07);
year = rtc_read (0x08);
debug ( "Get RTC year: %02x mon/cent: %02x mday: %02x wday: %02x "
"hr: %02x min: %02x sec: %02x\n",
year, mon_cent, mday, wday,
hour, min, sec );
debug ( "Alarms: wday: %02x day: %02x hour: %02x min: %02x\n",
rtc_read (0x0C),
rtc_read (0x0B),
rtc_read (0x0A),
rtc_read (0x09) );
if (sec & 0x80) {
puts ("### Warning: RTC Low Voltage - date/time not reliable\n");
rel = -1;
}
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_cent & 0x1F);
tmp->tm_year = bcd2bin (year) + ((mon_cent & 0x80) ? 2000 : 1900);
tmp->tm_wday = bcd2bin (wday & 0x07);
tmp->tm_yday = 0;
tmp->tm_isdst= 0;
debug ( "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);
return rel;
}
int rtc_set (struct rtc_time *tmp)
{
uchar century;
debug ( "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);
rtc_write (0x08, bin2bcd(tmp->tm_year % 100));
century = (tmp->tm_year >= 2000) ? 0x80 : 0;
rtc_write (0x07, bin2bcd(tmp->tm_mon) | century);
rtc_write (0x06, bin2bcd(tmp->tm_wday));
rtc_write (0x05, bin2bcd(tmp->tm_mday));
rtc_write (0x04, bin2bcd(tmp->tm_hour));
rtc_write (0x03, bin2bcd(tmp->tm_min ));
rtc_write (0x02, bin2bcd(tmp->tm_sec ));
return 0;
}
void rtc_reset (void)
{
/* clear all control & status registers */
rtc_write (0x00, 0x00);
rtc_write (0x01, 0x00);
rtc_write (0x0D, 0x00);
/* clear Voltage Low bit */
rtc_write (0x02, rtc_read (0x02) & 0x7F);
/* reset all alarms */
rtc_write (0x09, 0x00);
rtc_write (0x0A, 0x00);
rtc_write (0x0B, 0x00);
rtc_write (0x0C, 0x00);
}
/* ------------------------------------------------------------------------- */
static uchar rtc_read (uchar reg)
{
return (i2c_reg_read (CONFIG_SYS_I2C_RTC_ADDR, reg));
}
static void rtc_write (uchar reg, uchar val)
{
i2c_reg_write (CONFIG_SYS_I2C_RTC_ADDR, reg, val);
}
#endif

125
common/package/utils/sysupgrade-helper/src/drivers/rtc/pl031.c Normal file
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/*
* (C) Copyright 2008
* Gururaja Hebbar gururajakr@sanyo.co.in
*
* reference linux-2.6.20.6/drivers/rtc/rtc-pl031.c
*
* 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
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#if defined(CONFIG_CMD_DATE)
#ifndef CONFIG_SYS_RTC_PL031_BASE
#error CONFIG_SYS_RTC_PL031_BASE is not defined!
#endif
/*
* Register definitions
*/
#define RTC_DR 0x00 /* Data read register */
#define RTC_MR 0x04 /* Match register */
#define RTC_LR 0x08 /* Data load register */
#define RTC_CR 0x0c /* Control register */
#define RTC_IMSC 0x10 /* Interrupt mask and set register */
#define RTC_RIS 0x14 /* Raw interrupt status register */
#define RTC_MIS 0x18 /* Masked interrupt status register */
#define RTC_ICR 0x1c /* Interrupt clear register */
#define RTC_CR_START (1 << 0)
#define RTC_WRITE_REG(addr, val) \
(*(volatile unsigned int *)(CONFIG_SYS_RTC_PL031_BASE + (addr)) = (val))
#define RTC_READ_REG(addr) \
(*(volatile unsigned int *)(CONFIG_SYS_RTC_PL031_BASE + (addr)))
static int pl031_initted = 0;
/* Enable RTC Start in Control register*/
void rtc_init(void)
{
RTC_WRITE_REG(RTC_CR, RTC_CR_START);
pl031_initted = 1;
}
/*
* Reset the RTC. We set the date back to 1970-01-01.
*/
void rtc_reset(void)
{
RTC_WRITE_REG(RTC_LR, 0x00);
if(!pl031_initted)
rtc_init();
}
/*
* Set the RTC
*/
int rtc_set(struct rtc_time *tmp)
{
unsigned long tim;
if(!pl031_initted)
rtc_init();
if (tmp == NULL) {
puts("Error setting the date/time\n");
return -1;
}
/* Calculate number of seconds this incoming time represents */
tim = mktime(tmp->tm_year, tmp->tm_mon, tmp->tm_mday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
RTC_WRITE_REG(RTC_LR, tim);
return -1;
}
/*
* Get the current time from the RTC
*/
int rtc_get(struct rtc_time *tmp)
{
ulong tim;
if(!pl031_initted)
rtc_init();
if (tmp == NULL) {
puts("Error getting the date/time\n");
return -1;
}
tim = RTC_READ_REG(RTC_DR);
to_tm (tim, tmp);
debug ( "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);
return 0;
}
#endif

144
common/package/utils/sysupgrade-helper/src/drivers/rtc/pt7c4338.c Normal file
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/*
* Copyright 2010 Freescale Semiconductor, Inc.
*
* Author: Priyanka Jain <Priyanka.Jain@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
*/
/*
* This file provides Date & Time support (no alarms) for PT7C4338 chip.
*
* This file is based on drivers/rtc/ds1337.c
*
* PT7C4338 chip is manufactured by Pericom Technology Inc.
* It is a serial real-time clock which provides
* 1)Low-power clock/calendar.
* 2)Programmable square-wave output.
* It has 56 bytes of nonvolatile RAM.
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <i2c.h>
/* RTC register addresses */
#define RTC_SEC_REG_ADDR 0x0
#define RTC_MIN_REG_ADDR 0x1
#define RTC_HR_REG_ADDR 0x2
#define RTC_DAY_REG_ADDR 0x3
#define RTC_DATE_REG_ADDR 0x4
#define RTC_MON_REG_ADDR 0x5
#define RTC_YR_REG_ADDR 0x6
#define RTC_CTL_STAT_REG_ADDR 0x7
/* RTC second register address bit */
#define RTC_SEC_BIT_CH 0x80 /* Clock Halt (in Register 0) */
/* RTC control and status register bits */
#define RTC_CTL_STAT_BIT_RS0 0x1 /* Rate select 0 */
#define RTC_CTL_STAT_BIT_RS1 0x2 /* Rate select 1 */
#define RTC_CTL_STAT_BIT_SQWE 0x10 /* Square Wave Enable */
#define RTC_CTL_STAT_BIT_OSF 0x20 /* Oscillator Stop Flag */
#define RTC_CTL_STAT_BIT_OUT 0x80 /* Output Level Control */
/* RTC reset value */
#define RTC_PT7C4338_RESET_VAL \
(RTC_CTL_STAT_BIT_RS0 | RTC_CTL_STAT_BIT_RS1 | RTC_CTL_STAT_BIT_OUT)
/****** Helper functions ****************************************/
static u8 rtc_read(u8 reg)
{
return i2c_reg_read(CONFIG_SYS_I2C_RTC_ADDR, reg);
}
static void rtc_write(u8 reg, u8 val)
{
i2c_reg_write(CONFIG_SYS_I2C_RTC_ADDR, reg, val);
}
/****************************************************************/
/* Get the current time from the RTC */
int rtc_get(struct rtc_time *tmp)
{
int ret = 0;
u8 sec, min, hour, mday, wday, mon, year, ctl_stat;
ctl_stat = rtc_read(RTC_CTL_STAT_REG_ADDR);
sec = rtc_read(RTC_SEC_REG_ADDR);
min = rtc_read(RTC_MIN_REG_ADDR);
hour = rtc_read(RTC_HR_REG_ADDR);
wday = rtc_read(RTC_DAY_REG_ADDR);
mday = rtc_read(RTC_DATE_REG_ADDR);
mon = rtc_read(RTC_MON_REG_ADDR);
year = rtc_read(RTC_YR_REG_ADDR);
debug("Get RTC year: %02x mon: %02x mday: %02x wday: %02x "
"hr: %02x min: %02x sec: %02x control_status: %02x\n",
year, mon, mday, wday, hour, min, sec, ctl_stat);
if (ctl_stat & RTC_CTL_STAT_BIT_OSF) {
printf("### Warning: RTC oscillator has stopped\n");
/* clear the OSF flag */
rtc_write(RTC_CTL_STAT_REG_ADDR,
rtc_read(RTC_CTL_STAT_REG_ADDR)\
& ~RTC_CTL_STAT_BIT_OSF);
ret = -1;
}
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) + 2000;
tmp->tm_wday = bcd2bin((wday - 1) & 0x07);
tmp->tm_yday = 0;
tmp->tm_isdst = 0;
debug("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);
return ret;
}
/* Set the RTC */
int rtc_set(struct rtc_time *tmp)
{
debug("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);
rtc_write(RTC_YR_REG_ADDR, bin2bcd(tmp->tm_year % 100));
rtc_write(RTC_MON_REG_ADDR, bin2bcd(tmp->tm_mon));
rtc_write(RTC_DAY_REG_ADDR, bin2bcd(tmp->tm_wday + 1));
rtc_write(RTC_DATE_REG_ADDR, bin2bcd(tmp->tm_mday));
rtc_write(RTC_HR_REG_ADDR, bin2bcd(tmp->tm_hour));
rtc_write(RTC_MIN_REG_ADDR, bin2bcd(tmp->tm_min));
rtc_write(RTC_SEC_REG_ADDR, bin2bcd(tmp->tm_sec));
return 0;
}
/* Reset the RTC */
void rtc_reset(void)
{
rtc_write(RTC_SEC_REG_ADDR, 0x00); /* clearing Clock Halt */
rtc_write(RTC_CTL_STAT_REG_ADDR, RTC_PT7C4338_RESET_VAL);
}

291
common/package/utils/sysupgrade-helper/src/drivers/rtc/rs5c372.c Normal file
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/*
* rs5c372.c
*
* Device driver for Ricoh's Real Time Controller RS5C372A.
*
* Copyright (C) 2004 Gary Jennejohn garyj@denx.de
*
* Based in part in ds1307.c -
* (C) Copyright 2001, 2002, 2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
* Keith Outwater, keith_outwater@mvis.com`
* Steven Scholz, steven.scholz@imc-berlin.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 version 2 as
* published by the Free Software Foundation.
*
* 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
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <i2c.h>
#if defined(CONFIG_CMD_DATE)
/*
* Reads are always done starting with register 15, which requires some
* jumping-through-hoops to access the data correctly.
*
* Writes are always done starting with register 0.
*/
#define DEBUG 0
#if DEBUG
static unsigned int rtc_debug = DEBUG;
#else
#define rtc_debug 0 /* gcc will remove all the debug code for us */
#endif
#ifndef CONFIG_SYS_I2C_RTC_ADDR
#define CONFIG_SYS_I2C_RTC_ADDR 0x32
#endif
#define RS5C372_RAM_SIZE 0x10
#define RATE_32000HZ 0x80 /* Rate Select 32.000KHz */
#define RATE_32768HZ 0x00 /* Rate Select 32.768KHz */
#define STATUS_XPT 0x10 /* data invalid because voltage was 0 */
#define USE_24HOUR_MODE 0x20
#define TWELVE_HOUR_MODE(n) ((((n) >> 5) & 1) == 0)
#define HOURS_AP(n) (((n) >> 5) & 1)
#define HOURS_12(n) bcd2bin((n) & 0x1F)
#define HOURS_24(n) bcd2bin((n) & 0x3F)
static int setup_done = 0;
static int
rs5c372_readram(unsigned char *buf, int len)
{
int ret;
ret = i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 0, buf, len);
if (ret != 0) {
printf("%s: failed to read\n", __FUNCTION__);
return ret;
}
if (buf[0] & STATUS_XPT)
printf("### Warning: RTC lost power\n");
return ret;
}
static void
rs5c372_enable(void)
{
unsigned char buf[RS5C372_RAM_SIZE + 1];
int ret;
/* note that this returns reg. 15 in buf[1] */
ret = rs5c372_readram(&buf[1], RS5C372_RAM_SIZE);
if (ret != 0) {
printf("%s: failed\n", __FUNCTION__);
return;
}
buf[0] = 0;
/* we want to start writing at register 0 so we have to copy the */
/* register contents up one slot */
for (ret = 2; ret < 9; ret++)
buf[ret - 1] = buf[ret];
/* registers 0 to 6 (time values) are not touched */
buf[8] = RATE_32768HZ; /* reg. 7 */
buf[9] = 0; /* reg. 8 */
buf[10] = 0; /* reg. 9 */
buf[11] = 0; /* reg. 10 */
buf[12] = 0; /* reg. 11 */
buf[13] = 0; /* reg. 12 */
buf[14] = 0; /* reg. 13 */
buf[15] = 0; /* reg. 14 */
buf[16] = USE_24HOUR_MODE; /* reg. 15 */
ret = i2c_write(CONFIG_SYS_I2C_RTC_ADDR, 0, 0, buf, RS5C372_RAM_SIZE+1);
if (ret != 0) {
printf("%s: failed\n", __FUNCTION__);
return;
}
setup_done = 1;
return;
}
static void
rs5c372_convert_to_time(struct rtc_time *dt, unsigned char *buf)
{
/* buf[0] is register 15 */
dt->tm_sec = bcd2bin(buf[1]);
dt->tm_min = bcd2bin(buf[2]);
if (TWELVE_HOUR_MODE(buf[0])) {
dt->tm_hour = HOURS_12(buf[3]);
if (HOURS_AP(buf[3])) /* PM */
dt->tm_hour += 12;
} else /* 24-hour-mode */
dt->tm_hour = HOURS_24(buf[3]);
dt->tm_mday = bcd2bin(buf[5]);
dt->tm_mon = bcd2bin(buf[6]);
dt->tm_year = bcd2bin(buf[7]);
if (dt->tm_year >= 70)
dt->tm_year += 1900;
else
dt->tm_year += 2000;
/* 0 is Sunday */
dt->tm_wday = bcd2bin(buf[4] & 0x07);
dt->tm_yday = 0;
dt->tm_isdst= 0;
if(rtc_debug > 2) {
printf("rs5c372_convert_to_time: year = %d\n", dt->tm_year);
printf("rs5c372_convert_to_time: mon = %d\n", dt->tm_mon);
printf("rs5c372_convert_to_time: mday = %d\n", dt->tm_mday);
printf("rs5c372_convert_to_time: hour = %d\n", dt->tm_hour);
printf("rs5c372_convert_to_time: min = %d\n", dt->tm_min);
printf("rs5c372_convert_to_time: sec = %d\n", dt->tm_sec);
}
}
/*
* Get the current time from the RTC
*/
int
rtc_get (struct rtc_time *tmp)
{
unsigned char buf[RS5C372_RAM_SIZE];
int ret;
if (!setup_done)
rs5c372_enable();
if (!setup_done)
return -1;
memset(buf, 0, sizeof(buf));
/* note that this returns reg. 15 in buf[0] */
ret = rs5c372_readram(buf, RS5C372_RAM_SIZE);
if (ret != 0) {
printf("%s: failed\n", __FUNCTION__);
return -1;
}
rs5c372_convert_to_time(tmp, buf);
return 0;
}
/*
* Set the RTC
*/
int rtc_set (struct rtc_time *tmp)
{
unsigned char buf[8], reg15;
int ret;
if (!setup_done)
rs5c372_enable();
if (!setup_done)
return -1;
if(rtc_debug > 2) {
printf("rtc_set: tm_year = %d\n", tmp->tm_year);
printf("rtc_set: tm_mon = %d\n", tmp->tm_mon);
printf("rtc_set: tm_mday = %d\n", tmp->tm_mday);
printf("rtc_set: tm_hour = %d\n", tmp->tm_hour);
printf("rtc_set: tm_min = %d\n", tmp->tm_min);
printf("rtc_set: tm_sec = %d\n", tmp->tm_sec);
}
memset(buf, 0, sizeof(buf));
/* only read register 15 */
ret = i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 0, buf, 1);
if (ret == 0) {
/* need to save register 15 */
reg15 = buf[0];
buf[0] = 0; /* register address on RS5C372 */
buf[1] = bin2bcd(tmp->tm_sec);
buf[2] = bin2bcd(tmp->tm_min);
/* need to handle 12 hour mode */
if (TWELVE_HOUR_MODE(reg15)) {
if (tmp->tm_hour >= 12) { /* PM */
/* 12 PM is a special case */
if (tmp->tm_hour == 12)
buf[3] = bin2bcd(tmp->tm_hour);
else
buf[3] = bin2bcd(tmp->tm_hour - 12);
buf[3] |= 0x20;
}
} else {
buf[3] = bin2bcd(tmp->tm_hour);
}
buf[4] = bin2bcd(tmp->tm_wday);
buf[5] = bin2bcd(tmp->tm_mday);
buf[6] = bin2bcd(tmp->tm_mon);
if (tmp->tm_year < 1970 || tmp->tm_year > 2069)
printf("WARNING: year should be between 1970 and 2069!\n");
buf[7] = bin2bcd(tmp->tm_year % 100);
ret = i2c_write(CONFIG_SYS_I2C_RTC_ADDR, 0, 0, buf, 8);
if (ret != 0) {
printf("rs5c372_set_datetime(), i2c_master_send() returned %d\n",ret);
return -1;
}
} else {
return -1;
}
return 0;
}
/*
* Reset the RTC. We set the date back to 1970-01-01.
*/
void
rtc_reset (void)
{
struct rtc_time tmp;
if (!setup_done)
rs5c372_enable();
if (!setup_done)
return;
tmp.tm_year = 1970;
tmp.tm_mon = 1;
/* Jan. 1, 1970 was a Thursday */
tmp.tm_wday= 4;
tmp.tm_mday= 1;
tmp.tm_hour = 0;
tmp.tm_min = 0;
tmp.tm_sec = 0;
rtc_set(&tmp);
printf ("RTC: %4d-%02d-%02d %2d:%02d:%02d UTC\n",
tmp.tm_year, tmp.tm_mon, tmp.tm_mday,
tmp.tm_hour, tmp.tm_min, tmp.tm_sec);
return;
}
#endif

117
common/package/utils/sysupgrade-helper/src/drivers/rtc/rtc4543.c Normal file
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/*
* (C) Copyright 2008, 2009
* Andreas Pfefferle, DENX Software Engineering, ap@denx.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
*/
#include <asm/io.h>
#include <common.h>
#include <command.h>
#include <config.h>
#include <rtc.h>
#include <tws.h>
#if defined(CONFIG_CMD_DATE)
/*
* Note: The acrobatics below is due to the hideously ingenius idea of
* the chip designers. As the chip does not allow register
* addressing, all values need to be read and written in one go. Sure
* enough, the 'wday' field (0-6) is transferred using the economic
* number of 4 bits right in the middle of the packet.....
*/
int rtc_get(struct rtc_time *tm)
{
int rel = 0;
uchar buffer[7];
memset(buffer, 0, 7);
/* Read 52 bits into our buffer */
tws_read(buffer, 52);
tm->tm_sec = bcd2bin( buffer[0] & 0x7F);
tm->tm_min = bcd2bin( buffer[1] & 0x7F);
tm->tm_hour = bcd2bin( buffer[2] & 0x3F);
tm->tm_wday = bcd2bin( buffer[3] & 0x07);
tm->tm_mday = bcd2bin((buffer[3] & 0xF0) >> 4 | (buffer[4] & 0x0F) << 4);
tm->tm_mon = bcd2bin((buffer[4] & 0x30) >> 4 | (buffer[5] & 0x0F) << 4);
tm->tm_year = bcd2bin((buffer[5] & 0xF0) >> 4 | (buffer[6] & 0x0F) << 4) + 2000;
tm->tm_yday = 0;
tm->tm_isdst = 0;
if (tm->tm_sec & 0x80) {
puts("### Warning: RTC Low Voltage - date/time not reliable\n");
rel = -1;
}
debug("Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_wday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
return rel;
}
int rtc_set(struct rtc_time *tm)
{
uchar buffer[7];
uchar tmp;
debug("Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_wday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
memset(buffer, 0, 7);
buffer[0] = bin2bcd(tm->tm_sec);
buffer[1] = bin2bcd(tm->tm_min);
buffer[2] = bin2bcd(tm->tm_hour);
buffer[3] = bin2bcd(tm->tm_wday);
tmp = bin2bcd(tm->tm_mday);
buffer[3] |= (tmp & 0x0F) << 4;
buffer[4] = (tmp & 0xF0) >> 4;
tmp = bin2bcd(tm->tm_mon);
buffer[4] |= (tmp & 0x0F) << 4;
buffer[5] = (tmp & 0xF0) >> 4;
tmp = bin2bcd(tm->tm_year % 100);
buffer[5] |= (tmp & 0x0F) << 4;
buffer[6] = (tmp & 0xF0) >> 4;
/* Write the resulting 52 bits to device */
tws_write(buffer, 52);
return 0;
}
void rtc_reset(void)
{
struct rtc_time tmp;
tmp.tm_sec = 0;
tmp.tm_min = 0;
tmp.tm_hour = 0;
tmp.tm_wday = 4;
tmp.tm_mday = 1;
tmp.tm_mon = 1;
tmp.tm_year = 2000;
rtc_set(&tmp);
}
#endif

206
common/package/utils/sysupgrade-helper/src/drivers/rtc/rv3029.c Normal file
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/*
* (C) Copyright 2010
* Heiko Schocher, DENX Software Engineering, hs@denx.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
*/
#include <common.h>
#include <command.h>
#include <i2c.h>
#include <rtc.h>
#define RTC_RV3029_CTRL1 0x00
#define RTC_RV3029_CTRL1_EERE (1 << 3)
#define RTC_RV3029_CTRL_STATUS 0x03
#define RTC_RV3029_CTRLS_EEBUSY (1 << 7)
#define RTC_RV3029_CTRL_RESET 0x04
#define RTC_RV3029_CTRL_SYS_R (1 << 4)
#define RTC_RV3029_CLOCK_PAGE 0x08
#define RTC_RV3029_PAGE_LEN 7
#define RV3029C2_W_SECONDS 0x00
#define RV3029C2_W_MINUTES 0x01
#define RV3029C2_W_HOURS 0x02
#define RV3029C2_W_DATE 0x03
#define RV3029C2_W_DAYS 0x04
#define RV3029C2_W_MONTHS 0x05
#define RV3029C2_W_YEARS 0x06
#define RV3029C2_REG_HR_12_24 (1 << 6) /* 24h/12h mode */
#define RV3029C2_REG_HR_PM (1 << 5) /* PM/AM bit in 12h mode */
#define RTC_RV3029_EEPROM_CTRL 0x30
#define RTC_RV3029_TRICKLE_1K (1 << 4)
#define RTC_RV3029_TRICKLE_5K (1 << 5)
#define RTC_RV3029_TRICKLE_20K (1 << 6)
#define RTC_RV3029_TRICKLE_80K (1 << 7)
int rtc_get( struct rtc_time *tmp )
{
int ret;
unsigned char buf[RTC_RV3029_PAGE_LEN];
ret = i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_CLOCK_PAGE, 1, buf, \
RTC_RV3029_PAGE_LEN);
if (ret) {
printf("%s: error reading RTC: %x\n", __func__, ret);
return -1;
}
tmp->tm_sec = bcd2bin( buf[RV3029C2_W_SECONDS] & 0x7f);
tmp->tm_min = bcd2bin( buf[RV3029C2_W_MINUTES] & 0x7f);
if (buf[RV3029C2_W_HOURS] & RV3029C2_REG_HR_12_24) {
/* 12h format */
tmp->tm_hour = bcd2bin(buf[RV3029C2_W_HOURS] & 0x1f);
if (buf[RV3029C2_W_HOURS] & RV3029C2_REG_HR_PM)
/* PM flag set */
tmp->tm_hour += 12;
} else
tmp->tm_hour = bcd2bin(buf[RV3029C2_W_HOURS] & 0x3f);
tmp->tm_mday = bcd2bin( buf[RV3029C2_W_DATE] & 0x3F );
tmp->tm_mon = bcd2bin( buf[RV3029C2_W_MONTHS] & 0x1F );
tmp->tm_wday = bcd2bin( buf[RV3029C2_W_DAYS] & 0x07 );
/* RTC supports only years > 1999 */
tmp->tm_year = bcd2bin( buf[RV3029C2_W_YEARS]) + 2000;
tmp->tm_yday = 0;
tmp->tm_isdst = 0;
debug( "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 );
return 0;
}
int rtc_set( struct rtc_time *tmp )
{
int ret;
unsigned char buf[RTC_RV3029_PAGE_LEN];
debug( "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);
if (tmp->tm_year < 2000) {
printf("RTC: year %d < 2000 not possible\n", tmp->tm_year);
return -1;
}
buf[RV3029C2_W_SECONDS] = bin2bcd(tmp->tm_sec);
buf[RV3029C2_W_MINUTES] = bin2bcd(tmp->tm_min);
buf[RV3029C2_W_HOURS] = bin2bcd(tmp->tm_hour);
/* set 24h format */
buf[RV3029C2_W_HOURS] &= ~RV3029C2_REG_HR_12_24;
buf[RV3029C2_W_DATE] = bin2bcd(tmp->tm_mday);
buf[RV3029C2_W_DAYS] = bin2bcd(tmp->tm_wday);
buf[RV3029C2_W_MONTHS] = bin2bcd(tmp->tm_mon);
tmp->tm_year -= 2000;
buf[RV3029C2_W_YEARS] = bin2bcd(tmp->tm_year);
ret = i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_CLOCK_PAGE, 1,
buf, RTC_RV3029_PAGE_LEN);
/* give the RTC some time to update */
udelay(1000);
return ret;
}
/* sets EERE-Bit (automatic EEPROM refresh) */
static void set_eere_bit(int state)
{
unsigned char reg_ctrl1;
(void)i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_CTRL1, 1,
&reg_ctrl1, 1);
if (state)
reg_ctrl1 |= RTC_RV3029_CTRL1_EERE;
else
reg_ctrl1 &= (~RTC_RV3029_CTRL1_EERE);
(void)i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_CTRL1, 1,
&reg_ctrl1, 1);
}
/* waits until EEPROM page is no longer busy (times out after 10ms*loops) */
static int wait_eebusy(int loops)
{
int i;
unsigned char ctrl_status;
for (i = 0; i < loops; i++) {
(void)i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_CTRL_STATUS,
1, &ctrl_status, 1);
if ((ctrl_status & RTC_RV3029_CTRLS_EEBUSY) == 0)
break;
udelay(10000);
}
return i;
}
void rtc_reset (void)
{
unsigned char buf[RTC_RV3029_PAGE_LEN];
buf[0] = RTC_RV3029_CTRL_SYS_R;
(void)i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_CTRL_RESET, 1,
buf, 1);
#if defined(CONFIG_SYS_RV3029_TCR)
/*
* because EEPROM_CTRL register is in EEPROM page it is necessary to
* disable automatic EEPROM refresh and check if EEPROM is busy
* before EEPORM_CTRL register may be accessed
*/
set_eere_bit(0);
wait_eebusy(100);
/* read current trickle charger setting */
(void)i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_EEPROM_CTRL,
1, buf, 1);
/* enable automatic EEPROM refresh again */
set_eere_bit(1);
/*
* to minimize EEPROM access write trickle charger setting only if it
* differs from current value
*/
if ((buf[0] & 0xF0) != CONFIG_SYS_RV3029_TCR) {
buf[0] = (buf[0] & 0x0F) | CONFIG_SYS_RV3029_TCR;
/*
* write trickle charger setting (disable autom. EEPROM
* refresh and wait until EEPROM is idle)
*/
set_eere_bit(0);
wait_eebusy(100);
(void)i2c_write(CONFIG_SYS_I2C_RTC_ADDR,
RTC_RV3029_EEPROM_CTRL, 1, buf, 1);
/*
* it is necessary to wait 10ms before EEBUSY-Bit may be read
* (this is not documented in the data sheet yet, but the
* manufacturer recommends it)
*/
udelay(10000);
/* wait until EEPROM write access is finished */
wait_eebusy(100);
set_eere_bit(1);
}
#endif
}

227
common/package/utils/sysupgrade-helper/src/drivers/rtc/rx8025.c Normal file
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/*
* (C) Copyright 2007
* Matthias Fuchs, esd gmbh, matthias.fuchs@esd-electronics.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
*/
/*
* Epson RX8025 RTC driver.
*/
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <i2c.h>
#if defined(CONFIG_CMD_DATE)
/*---------------------------------------------------------------------*/
#undef DEBUG_RTC
#ifdef DEBUG_RTC
#define DEBUGR(fmt,args...) printf(fmt ,##args)
#else
#define DEBUGR(fmt,args...)
#endif
/*---------------------------------------------------------------------*/
#ifndef CONFIG_SYS_I2C_RTC_ADDR
# define CONFIG_SYS_I2C_RTC_ADDR 0x32
#endif
/*
* RTC register addresses
*/
#define RTC_SEC_REG_ADDR 0x00
#define RTC_MIN_REG_ADDR 0x01
#define RTC_HR_REG_ADDR 0x02
#define RTC_DAY_REG_ADDR 0x03
#define RTC_DATE_REG_ADDR 0x04
#define RTC_MON_REG_ADDR 0x05
#define RTC_YR_REG_ADDR 0x06
#define RTC_CTL1_REG_ADDR 0x0e
#define RTC_CTL2_REG_ADDR 0x0f
/*
* Control register 1 bits
*/
#define RTC_CTL1_BIT_2412 0x20
/*
* Control register 2 bits
*/
#define RTC_CTL2_BIT_PON 0x10
#define RTC_CTL2_BIT_VDET 0x40
#define RTC_CTL2_BIT_XST 0x20
#define RTC_CTL2_BIT_VDSL 0x80
/*
* Note: the RX8025 I2C RTC requires register
* reads and write to consist of a single bus
* cycle. It is not allowed to write the register
* address in a first cycle that is terminated by
* a STOP condition. The chips needs a 'restart'
* sequence (start sequence without a prior stop).
* This driver has been written for a 4xx board.
* U-Boot's 4xx i2c driver is currently not capable
* to generate such cycles to some work arounds
* are used.
*/
/* static uchar rtc_read (uchar reg); */
#define rtc_read(reg) buf[((reg) + 1) & 0xf]
static void rtc_write (uchar reg, uchar val);
/*
* Get the current time from the RTC
*/
int rtc_get (struct rtc_time *tmp)
{
int rel = 0;
uchar sec, min, hour, mday, wday, mon, year, ctl2;
uchar buf[16];
if (i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 0, buf, 16))
printf("Error reading from RTC\n");
sec = rtc_read(RTC_SEC_REG_ADDR);
min = rtc_read(RTC_MIN_REG_ADDR);
hour = rtc_read(RTC_HR_REG_ADDR);
wday = rtc_read(RTC_DAY_REG_ADDR);
mday = rtc_read(RTC_DATE_REG_ADDR);
mon = rtc_read(RTC_MON_REG_ADDR);
year = rtc_read(RTC_YR_REG_ADDR);
DEBUGR ("Get RTC year: %02x mon: %02x mday: %02x wday: %02x "
"hr: %02x min: %02x sec: %02x\n",
year, mon, mday, wday, hour, min, sec);
/* dump status */
ctl2 = rtc_read(RTC_CTL2_REG_ADDR);
if (ctl2 & RTC_CTL2_BIT_PON) {
printf("RTC: power-on detected\n");
rel = -1;
}
if (ctl2 & RTC_CTL2_BIT_VDET) {
printf("RTC: voltage drop detected\n");
rel = -1;
}
if (!(ctl2 & RTC_CTL2_BIT_XST)) {
printf("RTC: oscillator stop detected\n");
rel = -1;
}
tmp->tm_sec = bcd2bin (sec & 0x7F);
tmp->tm_min = bcd2bin (min & 0x7F);
if (rtc_read(RTC_CTL1_REG_ADDR) & RTC_CTL1_BIT_2412)
tmp->tm_hour = bcd2bin (hour & 0x3F);
else
tmp->tm_hour = bcd2bin (hour & 0x1F) % 12 +
((hour & 0x20) ? 12 : 0);
tmp->tm_mday = bcd2bin (mday & 0x3F);
tmp->tm_mon = bcd2bin (mon & 0x1F);
tmp->tm_year = bcd2bin (year) + ( bcd2bin (year) >= 70 ? 1900 : 2000);
tmp->tm_wday = bcd2bin (wday & 0x07);
tmp->tm_yday = 0;
tmp->tm_isdst= 0;
DEBUGR ("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);
return rel;
}
/*
* Set the RTC
*/
int rtc_set (struct rtc_time *tmp)
{
DEBUGR ("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);
if (tmp->tm_year < 1970 || tmp->tm_year > 2069)
printf("WARNING: year should be between 1970 and 2069!\n");
rtc_write (RTC_YR_REG_ADDR, bin2bcd (tmp->tm_year % 100));
rtc_write (RTC_MON_REG_ADDR, bin2bcd (tmp->tm_mon));
rtc_write (RTC_DAY_REG_ADDR, bin2bcd (tmp->tm_wday));
rtc_write (RTC_DATE_REG_ADDR, bin2bcd (tmp->tm_mday));
rtc_write (RTC_HR_REG_ADDR, bin2bcd (tmp->tm_hour));
rtc_write (RTC_MIN_REG_ADDR, bin2bcd (tmp->tm_min));
rtc_write (RTC_SEC_REG_ADDR, bin2bcd (tmp->tm_sec));
rtc_write (RTC_CTL1_REG_ADDR, RTC_CTL1_BIT_2412);
return 0;
}
/*
* Reset the RTC. We setting the date back to 1970-01-01.
*/
void rtc_reset (void)
{
struct rtc_time tmp;
uchar buf[16];
uchar ctl2;
if (i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 0, buf, 16))
printf("Error reading from RTC\n");
ctl2 = rtc_read(RTC_CTL2_REG_ADDR);
ctl2 &= ~(RTC_CTL2_BIT_PON | RTC_CTL2_BIT_VDET);
ctl2 |= RTC_CTL2_BIT_XST | RTC_CTL2_BIT_VDSL;
rtc_write (RTC_CTL2_REG_ADDR, ctl2);
tmp.tm_year = 1970;
tmp.tm_mon = 1;
tmp.tm_mday= 1;
tmp.tm_hour = 0;
tmp.tm_min = 0;
tmp.tm_sec = 0;
rtc_set(&tmp);
printf ( "RTC: %4d-%02d-%02d %2d:%02d:%02d UTC\n",
tmp.tm_year, tmp.tm_mon, tmp.tm_mday,
tmp.tm_hour, tmp.tm_min, tmp.tm_sec);
return;
}
/*
* Helper functions
*/
static void rtc_write (uchar reg, uchar val)
{
uchar buf[2];
buf[0] = reg << 4;
buf[1] = val;
if (i2c_write(CONFIG_SYS_I2C_RTC_ADDR, 0, 0, buf, 2) != 0)
printf("Error writing to RTC\n");
}
#endif /* CONFIG_RTC_RX8025 && CONFIG_CMD_DATE */

170
common/package/utils/sysupgrade-helper/src/drivers/rtc/s3c24x0_rtc.c Normal file
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/*
* (C) Copyright 2003
* David Müller ELSOFT AG Switzerland. d.mueller@elsoft.ch
*
* 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 built-in Samsung S3C24X0 RTC
*/
#include <common.h>
#include <command.h>
#if (defined(CONFIG_CMD_DATE))
#include <asm/arch/s3c24x0_cpu.h>
#include <rtc.h>
#include <asm/io.h>
#include <linux/compiler.h>
typedef enum {
RTC_ENABLE,
RTC_DISABLE
} RTC_ACCESS;
static inline void SetRTC_Access(RTC_ACCESS a)
{
struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc();
switch (a) {
case RTC_ENABLE:
writeb(readb(&rtc->rtccon) | 0x01, &rtc->rtccon);
break;
case RTC_DISABLE:
writeb(readb(&rtc->rtccon) & ~0x01, &rtc->rtccon);
break;
}
}
/* ------------------------------------------------------------------------- */
int rtc_get(struct rtc_time *tmp)
{
struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc();
uchar sec, min, hour, mday, wday, mon, year;
__maybe_unused uchar a_sec, a_min, a_hour, a_date,
a_mon, a_year, a_armed;
/* enable access to RTC registers */
SetRTC_Access(RTC_ENABLE);
/* read RTC registers */
do {
sec = readb(&rtc->bcdsec);
min = readb(&rtc->bcdmin);
hour = readb(&rtc->bcdhour);
mday = readb(&rtc->bcddate);
wday = readb(&rtc->bcdday);
mon = readb(&rtc->bcdmon);
year = readb(&rtc->bcdyear);
} while (sec != readb(&rtc->bcdsec));
/* read ALARM registers */
a_sec = readb(&rtc->almsec);
a_min = readb(&rtc->almmin);
a_hour = readb(&rtc->almhour);
a_date = readb(&rtc->almdate);
a_mon = readb(&rtc->almmon);
a_year = readb(&rtc->almyear);
a_armed = readb(&rtc->rtcalm);
/* disable access to RTC registers */
SetRTC_Access(RTC_DISABLE);
#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);
printf("Alarms: %02x: year: %02x month: %02x date: %02x hour: "
"%02x min: %02x sec: %02x\n",
a_armed, a_year, a_mon, a_date, a_hour, a_min, a_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
return 0;
}
int rtc_set(struct rtc_time *tmp)
{
struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc();
uchar sec, min, hour, mday, wday, mon, year;
#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
year = bin2bcd(tmp->tm_year % 100);
mon = bin2bcd(tmp->tm_mon);
wday = bin2bcd(tmp->tm_wday);
mday = bin2bcd(tmp->tm_mday);
hour = bin2bcd(tmp->tm_hour);
min = bin2bcd(tmp->tm_min);
sec = bin2bcd(tmp->tm_sec);
/* enable access to RTC registers */
SetRTC_Access(RTC_ENABLE);
/* write RTC registers */
writeb(sec, &rtc->bcdsec);
writeb(min, &rtc->bcdmin);
writeb(hour, &rtc->bcdhour);
writeb(mday, &rtc->bcddate);
writeb(wday, &rtc->bcdday);
writeb(mon, &rtc->bcdmon);
writeb(year, &rtc->bcdyear);
/* disable access to RTC registers */
SetRTC_Access(RTC_DISABLE);
return 0;
}
void rtc_reset(void)
{
struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc();
writeb((readb(&rtc->rtccon) & ~0x06) | 0x08, &rtc->rtccon);
writeb(readb(&rtc->rtccon) & ~(0x08 | 0x01), &rtc->rtccon);
}
#endif

100
common/package/utils/sysupgrade-helper/src/drivers/rtc/s3c44b0_rtc.c Normal file
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/*
* (C) Copyright 2004
* DAVE Srl
* http://www.dave-tech.it
* http://www.wawnet.biz
* mailto:info@wawnet.biz
*
* 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
*/
/*
* S3C44B0 CPU specific code
*/
#include <common.h>
#include <command.h>
#include <asm/hardware.h>
#include <rtc.h>
int rtc_get (struct rtc_time* tm)
{
RTCCON |= 1;
tm->tm_year = bcd2bin(BCDYEAR);
tm->tm_mon = bcd2bin(BCDMON);
tm->tm_wday = bcd2bin(BCDDATE);
tm->tm_mday = bcd2bin(BCDDAY);
tm->tm_hour = bcd2bin(BCDHOUR);
tm->tm_min = bcd2bin(BCDMIN);
tm->tm_sec = bcd2bin(BCDSEC);
if (tm->tm_sec==0) {
/* we have to re-read the rtc data because of the "one second deviation" problem */
/* see RTC datasheet for more info about it */
tm->tm_year = bcd2bin(BCDYEAR);
tm->tm_mon = bcd2bin(BCDMON);
tm->tm_mday = bcd2bin(BCDDAY);
tm->tm_wday = bcd2bin(BCDDATE);
tm->tm_hour = bcd2bin(BCDHOUR);
tm->tm_min = bcd2bin(BCDMIN);
tm->tm_sec = bcd2bin(BCDSEC);
}
RTCCON &= ~1;
if(tm->tm_year >= 70)
tm->tm_year += 1900;
else
tm->tm_year += 2000;
return 0;
}
int rtc_set (struct rtc_time* tm)
{
if(tm->tm_year < 2000)
tm->tm_year -= 1900;
else
tm->tm_year -= 2000;
RTCCON |= 1;
BCDYEAR = bin2bcd(tm->tm_year);
BCDMON = bin2bcd(tm->tm_mon);
BCDDAY = bin2bcd(tm->tm_mday);
BCDDATE = bin2bcd(tm->tm_wday);
BCDHOUR = bin2bcd(tm->tm_hour);
BCDMIN = bin2bcd(tm->tm_min);
BCDSEC = bin2bcd(tm->tm_sec);
RTCCON &= 1;
return 0;
}
void rtc_reset (void)
{
RTCCON |= 1;
BCDYEAR = 0;
BCDMON = 0;
BCDDAY = 0;
BCDDATE = 0;
BCDHOUR = 0;
BCDMIN = 0;
BCDSEC = 0;
RTCCON &= 1;
}

181
common/package/utils/sysupgrade-helper/src/drivers/rtc/x1205.c Normal file
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/*
* (C) Copyright 2007
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* based on a the Linux rtc-x1207.c driver which is:
* Copyright 2004 Karen Spearel
* Copyright 2005 Alessandro Zummo
*
* Information and datasheet:
* http://www.intersil.com/cda/deviceinfo/0,1477,X1205,00.html
*
* 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 Xicor/Intersil X1205 RTC
*/
/* #define DEBUG */
#include <common.h>
#include <command.h>
#include <rtc.h>
#include <i2c.h>
#if defined(CONFIG_CMD_DATE)
#define CCR_SEC 0
#define CCR_MIN 1
#define CCR_HOUR 2
#define CCR_MDAY 3
#define CCR_MONTH 4
#define CCR_YEAR 5
#define CCR_WDAY 6
#define CCR_Y2K 7
#define X1205_REG_SR 0x3F /* status register */
#define X1205_REG_Y2K 0x37
#define X1205_REG_DW 0x36
#define X1205_REG_YR 0x35
#define X1205_REG_MO 0x34
#define X1205_REG_DT 0x33
#define X1205_REG_HR 0x32
#define X1205_REG_MN 0x31
#define X1205_REG_SC 0x30
#define X1205_REG_DTR 0x13
#define X1205_REG_ATR 0x12
#define X1205_REG_INT 0x11
#define X1205_REG_0 0x10
#define X1205_REG_Y2K1 0x0F
#define X1205_REG_DWA1 0x0E
#define X1205_REG_YRA1 0x0D
#define X1205_REG_MOA1 0x0C
#define X1205_REG_DTA1 0x0B
#define X1205_REG_HRA1 0x0A
#define X1205_REG_MNA1 0x09
#define X1205_REG_SCA1 0x08
#define X1205_REG_Y2K0 0x07
#define X1205_REG_DWA0 0x06
#define X1205_REG_YRA0 0x05
#define X1205_REG_MOA0 0x04
#define X1205_REG_DTA0 0x03
#define X1205_REG_HRA0 0x02
#define X1205_REG_MNA0 0x01
#define X1205_REG_SCA0 0x00
#define X1205_CCR_BASE 0x30 /* Base address of CCR */
#define X1205_ALM0_BASE 0x00 /* Base address of ALARM0 */
#define X1205_SR_RTCF 0x01 /* Clock failure */
#define X1205_SR_WEL 0x02 /* Write Enable Latch */
#define X1205_SR_RWEL 0x04 /* Register Write Enable */
#define X1205_DTR_DTR0 0x01
#define X1205_DTR_DTR1 0x02
#define X1205_DTR_DTR2 0x04
#define X1205_HR_MIL 0x80 /* Set in ccr.hour for 24 hr mode */
static void rtc_write(int reg, u8 val)
{
i2c_write(CONFIG_SYS_I2C_RTC_ADDR, reg, 2, &val, 1);
}
/*
* In the routines that deal directly with the x1205 hardware, we use
* rtc_time -- month 0-11, hour 0-23, yr = calendar year-epoch
* Epoch is initialized as 2000. Time is set to UTC.
*/
int rtc_get(struct rtc_time *tm)
{
u8 buf[8];
i2c_read(CONFIG_SYS_I2C_RTC_ADDR, X1205_CCR_BASE, 2, buf, 8);
debug("%s: raw read data - sec=%02x, min=%02x, hr=%02x, "
"mday=%02x, mon=%02x, year=%02x, wday=%02x, y2k=%02x\n",
__FUNCTION__,
buf[0], buf[1], buf[2], buf[3],
buf[4], buf[5], buf[6], buf[7]);
tm->tm_sec = bcd2bin(buf[CCR_SEC]);
tm->tm_min = bcd2bin(buf[CCR_MIN]);
tm->tm_hour = bcd2bin(buf[CCR_HOUR] & 0x3F); /* hr is 0-23 */
tm->tm_mday = bcd2bin(buf[CCR_MDAY]);
tm->tm_mon = bcd2bin(buf[CCR_MONTH]); /* mon is 0-11 */
tm->tm_year = bcd2bin(buf[CCR_YEAR])
+ (bcd2bin(buf[CCR_Y2K]) * 100);
tm->tm_wday = buf[CCR_WDAY];
debug("%s: tm is secs=%d, mins=%d, hours=%d, "
"mday=%d, mon=%d, year=%d, wday=%d\n",
__FUNCTION__,
tm->tm_sec, tm->tm_min, tm->tm_hour,
tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
return 0;
}
int rtc_set(struct rtc_time *tm)
{
int i;
u8 buf[8];
debug("Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_wday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
buf[CCR_SEC] = bin2bcd(tm->tm_sec);
buf[CCR_MIN] = bin2bcd(tm->tm_min);
/* set hour and 24hr bit */
buf[CCR_HOUR] = bin2bcd(tm->tm_hour) | X1205_HR_MIL;
buf[CCR_MDAY] = bin2bcd(tm->tm_mday);
/* month, 1 - 12 */
buf[CCR_MONTH] = bin2bcd(tm->tm_mon);
/* year, since the rtc epoch*/
buf[CCR_YEAR] = bin2bcd(tm->tm_year % 100);
buf[CCR_WDAY] = tm->tm_wday & 0x07;
buf[CCR_Y2K] = bin2bcd(tm->tm_year / 100);
/* this sequence is required to unlock the chip */
rtc_write(X1205_REG_SR, X1205_SR_WEL);
rtc_write(X1205_REG_SR, X1205_SR_WEL | X1205_SR_RWEL);
/* write register's data */
for (i = 0; i < 8; i++)
rtc_write(X1205_CCR_BASE + i, buf[i]);
rtc_write(X1205_REG_SR, 0);
return 0;
}
void rtc_reset(void)
{
/*
* Nothing to do
*/
}
#endif