u-boot/drivers/rtc/mvrtc.c
Anatolij Gustschin 0ac16bf32d ARM: dreamplug: fix compilation
Fix build issues:

mvrtc.c: In function 'rtc_get':
mvrtc.c:45: warning: implicit declaration of function 'readl'
mvrtc.c: In function 'rtc_set':
mvrtc.c💯 warning: implicit declaration of function 'writel'
dreamplug.c: In function 'board_early_init_f':
dreamplug.c:43: warning: implicit declaration of function 'kw_config_gpio'
dreamplug.c: In function 'board_init':
dreamplug.c:108: warning: implicit declaration of function 'kw_sdram_bar'
drivers/rtc/librtc.o: In function `rtc_set':
/home/ag/u-boot/u-boot-move-new-host/u-boot-video/drivers/rtc/mvrtc.c:92: undefined reference to `writel'
/home/ag/u-boot/u-boot-move-new-host/u-boot-video/drivers/rtc/mvrtc.c:103: undefined reference to `writel'
drivers/rtc/librtc.o: In function `rtc_reset':
/home/ag/u-boot/u-boot-move-new-host/u-boot-video/drivers/rtc/mvrtc.c:117: undefined reference to `readl'
/home/ag/u-boot/u-boot-move-new-host/u-boot-video/drivers/rtc/mvrtc.c:120: undefined reference to `readl'
drivers/rtc/librtc.o: In function `rtc_get':
/home/ag/u-boot/u-boot-move-new-host/u-boot-video/drivers/rtc/mvrtc.c:45: undefined reference to `readl'
/home/ag/u-boot/u-boot-move-new-host/u-boot-video/drivers/rtc/mvrtc.c:48: undefined reference to `readl'
...

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Jason Cooper <u-boot@lakedaemon.net>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
2011-11-03 22:56:21 +01:00

125 lines
3.6 KiB
C

/*
* 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");
}