#include <common.h>
#include <command.h>
-int do_sleep (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_sleep (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong start = get_timer(0);
ulong delay;
- if (argc != 2) {
- cmd_usage(cmdtp);
- return 1;
- }
+ if (argc != 2)
+ return CMD_RET_USAGE;
delay = simple_strtoul(argv[1], NULL, 10) * CONFIG_SYS_HZ;
while (get_timer(start) < delay) {
- if (ctrlc ()) {
+ if (ctrlc ())
return (-1);
- }
+
udelay (100);
}
return 0;
}
-/* Implemented in $(CPU)/interrupts.c */
-#if defined(CONFIG_CMD_IRQ)
-int do_irqinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
-
-U_BOOT_CMD(
- irqinfo, 1, 1, do_irqinfo,
- "print information about IRQs",
- NULL
-);
-#endif
-
U_BOOT_CMD(
sleep , 2, 1, do_sleep,
"delay execution for some time",
"N\n"
- " - delay execution for N seconds (N is _decimal_ !!!)\n"
+ " - delay execution for N seconds (N is _decimal_ !!!)"
+);
+
+#ifdef CONFIG_CMD_TIMER
+static int do_timer(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ static ulong start;
+
+ if (argc != 2)
+ return CMD_RET_USAGE;
+
+ if (!strcmp(argv[1], "start"))
+ start = get_timer(0);
+
+ if (!strcmp(argv[1], "get")) {
+ ulong msecs = get_timer(start) * 1000 / CONFIG_SYS_HZ;
+ printf("%ld.%03d\n", msecs / 1000, (int)(msecs % 1000));
+ }
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ timer, 2, 1, do_timer,
+ "access the system timer",
+ "start - Reset the timer reference.\n"
+ "timer get - Print the time since 'start'."
);
+#endif