diff options
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/Makefile | 1 | ||||
| -rw-r--r-- | drivers/rtc/bfin_rtc.c | 121 |
2 files changed, 0 insertions, 122 deletions
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index c919427..87c3d9c 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -9,7 +9,6 @@ obj-$(CONFIG_DM_RTC) += rtc-uclass.o obj-$(CONFIG_RTC_AT91SAM9_RTT) += at91sam9_rtt.o -obj-$(CONFIG_RTC_BFIN) += bfin_rtc.o obj-y += date.o obj-$(CONFIG_RTC_DAVINCI) += davinci.o obj-$(CONFIG_RTC_DS1302) += ds1302.o diff --git a/drivers/rtc/bfin_rtc.c b/drivers/rtc/bfin_rtc.c deleted file mode 100644 index a079a1d..0000000 --- a/drivers/rtc/bfin_rtc.c +++ /dev/null @@ -1,121 +0,0 @@ -/* - * 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 */ -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 = rtc_mktime(tmp); - - /* 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); - rtc_to_tm(time_in_sec, tmp); - - return 0; -} - -#endif |