diff options
| -rw-r--r-- | commands/hwclock.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/commands/hwclock.c b/commands/hwclock.c index 3f89cceee3..7633132022 100644 --- a/commands/hwclock.c +++ b/commands/hwclock.c @@ -4,6 +4,7 @@ #include <linux/err.h> #include <linux/ctype.h> #include <rtc.h> +#include <sntp.h> #include <linux/rtc.h> #include <string.h> #include <environment.h> @@ -92,8 +93,10 @@ static int do_hwclock(int argc, char *argv[]) char *env_name = NULL; int opt; int set = 0; + int ntp_to_hw = 0; + char *ntpserver = NULL; - while ((opt = getopt(argc, argv, "f:s:e:")) > 0) { + while ((opt = getopt(argc, argv, "f:s:e:n:")) > 0) { int ret; switch (opt) { @@ -116,6 +119,10 @@ static int do_hwclock(int argc, char *argv[]) case 'e': env_name = optarg; break; + case 'n': + ntp_to_hw = 1; + ntpserver = optarg; + break; } } @@ -127,6 +134,23 @@ static int do_hwclock(int argc, char *argv[]) return rtc_set_time(r, &stm); } + if (ntp_to_hw) { + s64 now; + + if (!IS_ENABLED(CONFIG_NET_SNTP)) { + printf("SNTP support is disabled\n"); + return 1; + } + + now = sntp(ntpserver); + if (now < 0) + return now; + + rtc_time_to_tm(now, &stm); + printf("%s\n", time_str(&stm)); + return rtc_set_time(r, &stm); + } + rtc_read_time(r, &tm); if (env_name) { @@ -147,6 +171,7 @@ BAREBOX_CMD_HELP_START(hwclock) BAREBOX_CMD_HELP_TEXT("Options:") BAREBOX_CMD_HELP_OPT ("-f NAME\t\t\t", "RTC device name (default rtc0)") BAREBOX_CMD_HELP_OPT ("-e VARNAME\t\t", "store RTC readout into variable VARNAME") +BAREBOX_CMD_HELP_OPT ("-n NTPSERVER\t", "set RTC from NTP server") BAREBOX_CMD_HELP_OPT ("-s ccyymmddHHMM[.SS]\t", "set time") BAREBOX_CMD_HELP_END |