* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 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>
#define rtc_debug 0 /* gcc will remove all the debug code for us */
#endif
-#ifndef CFG_I2C_RTC_ADDR
-#define CFG_I2C_RTC_ADDR 0x32
+#ifndef CONFIG_SYS_I2C_RTC_ADDR
+#define CONFIG_SYS_I2C_RTC_ADDR 0x32
#endif
#define RS5C372_RAM_SIZE 0x10
#define HOURS_24(n) bcd2bin((n) & 0x3F)
-static uchar bin2bcd (unsigned int n);
-static unsigned bcd2bin (uchar c);
-
static int setup_done = 0;
static int
{
int ret;
- ret = i2c_read(CFG_I2C_RTC_ADDR, 0, 0, buf, len);
+ ret = i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 0, buf, len);
if (ret != 0) {
printf("%s: failed to read\n", __FUNCTION__);
return ret;
buf[14] = 0; /* reg. 13 */
buf[15] = 0; /* reg. 14 */
buf[16] = USE_24HOUR_MODE; /* reg. 15 */
- ret = i2c_write(CFG_I2C_RTC_ADDR, 0, 0, buf, RS5C372_RAM_SIZE+1);
+ ret = i2c_write(CONFIG_SYS_I2C_RTC_ADDR, 0, 0, buf, RS5C372_RAM_SIZE+1);
if (ret != 0) {
printf("%s: failed\n", __FUNCTION__);
return;
memset(buf, 0, sizeof(buf));
/* only read register 15 */
- ret = i2c_read(CFG_I2C_RTC_ADDR, 0, 0, buf, 1);
+ ret = i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 0, buf, 1);
if (ret == 0) {
/* need to save register 15 */
printf("WARNING: year should be between 1970 and 2069!\n");
buf[7] = bin2bcd(tmp->tm_year % 100);
- ret = i2c_write(CFG_I2C_RTC_ADDR, 0, 0, buf, 8);
+ ret = i2c_write(CONFIG_SYS_I2C_RTC_ADDR, 0, 0, buf, 8);
if (ret != 0) {
printf("rs5c372_set_datetime(), i2c_master_send() returned %d\n",ret);
return -1;
}
/*
- * Reset the RTC. We set the date back to 1970-01-01.
+ * Reset the RTC.
*/
void
rtc_reset (void)
{
- struct rtc_time tmp;
-
if (!setup_done)
rs5c372_enable();
-
- if (!setup_done)
- return;
-
- tmp.tm_year = 1970;
- tmp.tm_mon = 1;
- /* Jan. 1, 1970 was a Thursday */
- tmp.tm_wday= 4;
- tmp.tm_mday= 1;
- tmp.tm_hour = 0;
- tmp.tm_min = 0;
- tmp.tm_sec = 0;
-
- rtc_set(&tmp);
-
- printf ("RTC: %4d-%02d-%02d %2d:%02d:%02d UTC\n",
- tmp.tm_year, tmp.tm_mon, tmp.tm_mday,
- tmp.tm_hour, tmp.tm_min, tmp.tm_sec);
-
- return;
-}
-
-static unsigned int
-bcd2bin (unsigned char n)
-{
- return ((((n >> 4) & 0x0F) * 10) + (n & 0x0F));
}
-static unsigned char
-bin2bcd (unsigned int n)
-{
- return (((n / 10) << 4) | (n % 10));
-}
#endif