rtc: Remove unused drivers
These RTC drivers are currently unused and reference other unused CONFIG variables, so remove them. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Tom Rini
parent
cdc5ed8f1f
commit
a6b537266f
1
README
1
README
@ -473,7 +473,6 @@ The following options need to be configured:
|
||||
CONFIG_RTC_DS1337 - use Maxim, Inc. DS1337 RTC
|
||||
CONFIG_RTC_DS1338 - use Maxim, Inc. DS1338 RTC
|
||||
CONFIG_RTC_DS1339 - use Maxim, Inc. DS1339 RTC
|
||||
CONFIG_RTC_DS164x - use Dallas DS164x RTC
|
||||
CONFIG_RTC_ISL1208 - use Intersil ISL1208 RTC
|
||||
CONFIG_RTC_MAX6900 - use Maxim, Inc. MAX6900 RTC
|
||||
CONFIG_RTC_DS1337_NOOSC - Turn off the OSC output for DS1337
|
||||
|
||||
@ -17,9 +17,6 @@ obj-$(CONFIG_RTC_DS1339) += ds1307.o
|
||||
obj-$(CONFIG_RTC_DS1337) += ds1337.o
|
||||
obj-$(CONFIG_RTC_DS1374) += ds1374.o
|
||||
obj-$(CONFIG_RTC_DS1388) += ds1337.o
|
||||
obj-$(CONFIG_RTC_DS1556) += ds1556.o
|
||||
obj-$(CONFIG_RTC_DS164x) += ds164x.o
|
||||
obj-$(CONFIG_RTC_DS174x) += ds174x.o
|
||||
obj-$(CONFIG_RTC_DS3231) += ds3231.o
|
||||
obj-$(CONFIG_RTC_DS3232) += ds3232.o
|
||||
obj-$(CONFIG_RTC_EMULATION) += emul_rtc.o
|
||||
|
||||
@ -1,179 +0,0 @@
|
||||
// SPDX-License-Identifier: GPL-2.0+
|
||||
/*
|
||||
* (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
|
||||
*/
|
||||
|
||||
/*
|
||||
* 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
|
||||
@ -1,171 +0,0 @@
|
||||
// SPDX-License-Identifier: GPL-2.0+
|
||||
/*
|
||||
* (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
|
||||
*/
|
||||
|
||||
/*
|
||||
* Date & Time support for the DS164x RTC
|
||||
*/
|
||||
|
||||
/* #define RTC_DEBUG */
|
||||
|
||||
#include <common.h>
|
||||
#include <command.h>
|
||||
#include <rtc.h>
|
||||
|
||||
|
||||
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;
|
||||
}
|
||||
@ -1,172 +0,0 @@
|
||||
// SPDX-License-Identifier: GPL-2.0+
|
||||
/*
|
||||
* (C) Copyright 2001
|
||||
* ARIO Data Networks, Inc. dchiu@ariodata.com
|
||||
*
|
||||
* Based on MontaVista DS1743 code and U-Boot mc146818 code
|
||||
*/
|
||||
|
||||
/*
|
||||
* Date & Time support for the DS174x RTC
|
||||
*/
|
||||
|
||||
/*#define DEBUG*/
|
||||
|
||||
#include <common.h>
|
||||
#include <command.h>
|
||||
#include <rtc.h>
|
||||
|
||||
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 );
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user