Signed-off-by: Heiko Schocher h...@denx.de
---
drivers/rtc/Makefile |1 +
drivers/rtc/rv3029.c | 124 ++
2 files changed, 125 insertions(+), 0 deletions(-)
create mode 100644 drivers/rtc/rv3029.c
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 916d73f..e4be4a4 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -60,6 +60,7 @@ 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
diff --git a/drivers/rtc/rv3029.c b/drivers/rtc/rv3029.c
new file mode 100644
index 000..3ebc768
--- /dev/null
+++ b/drivers/rtc/rv3029.c
@@ -0,0 +1,124 @@
+/*
+ * (C) Copyright 2010
+ * Heiko Schocher, DENX Software Engineering, h...@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_CTRL_RESET 0x04
+#define RTC_RV3029_CTRL_SYS_R (1 4)
+
+#define RTC_RV3029_CLOCK_PAGE 0x08
+#define RTC_RV3029_PAGE_LEN7
+
+#define RV3029C2_W_SECONDS 0x00
+#define RV3029C2_W_MINUTES 0x01
+#define RV3029C2_W_HOURS 0x02
+#define RV3029C2_W_DATE0x03
+#define RV3029C2_W_DAYS0x04
+#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 */
+
+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;
+
+#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 )
+{
+ int ret;
+ unsigned char buf[RTC_RV3029_PAGE_LEN];
+#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 (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,
+
