diff options
author | RajithaY <rajithax.yerrumsetty@intel.com> | 2017-04-25 03:31:15 -0700 |
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committer | Rajitha Yerrumchetty <rajithax.yerrumsetty@intel.com> | 2017-05-22 06:48:08 +0000 |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/u-boot/drivers/rtc/ds3231.c | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/drivers/rtc/ds3231.c')
-rw-r--r-- | qemu/roms/u-boot/drivers/rtc/ds3231.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/qemu/roms/u-boot/drivers/rtc/ds3231.c b/qemu/roms/u-boot/drivers/rtc/ds3231.c deleted file mode 100644 index c84bbc647..000000000 --- a/qemu/roms/u-boot/drivers/rtc/ds3231.c +++ /dev/null @@ -1,161 +0,0 @@ -/* - * (C) Copyright 2006 - * Markus Klotzbuecher, mk@denx.de - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/* - * 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 |