diff options
| -rw-r--r-- | cmd/misc.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/cmd/misc.c b/cmd/misc.c index 39d86835cf..efcbb90d18 100644 --- a/cmd/misc.c +++ b/cmd/misc.c @@ -15,13 +15,31 @@ static int do_sleep(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { ulong start = get_timer(0); + ulong mdelay = 0; ulong delay; + char *frpart; if (argc != 2) return CMD_RET_USAGE; delay = simple_strtoul(argv[1], NULL, 10) * CONFIG_SYS_HZ; + frpart = strchr(argv[1], '.'); + + if (frpart) { + uint mult = CONFIG_SYS_HZ / 10; + for (frpart++; *frpart != '\0' && mult > 0; frpart++) { + if (*frpart < '0' || *frpart > '9') { + mdelay = 0; + break; + } + mdelay += (*frpart - '0') * mult; + mult /= 10; + } + } + + delay += mdelay; + while (get_timer(start) < delay) { if (ctrlc()) return (-1); @@ -36,7 +54,8 @@ U_BOOT_CMD( sleep , 2, 1, do_sleep, "delay execution for some time", "N\n" - " - delay execution for N seconds (N is _decimal_ !!!)" + " - delay execution for N seconds (N is _decimal_ and can be\n" + " fractional)" ); #ifdef CONFIG_CMD_TIMER |