x86: Add CBMEM console driver for coreboot

[karo-tx-uboot.git] / common / cmd_misc.c

diff --git a/common/cmd_misc.c b/common/cmd_misc.c
index 061b1bbad0122f09a249ab51346fc256c7c7beed..dc2772e85df24a8ae85303a70c5d5c9b42c30f01 100644 (file)
--- a/common/cmd_misc.c
+++ b/common/cmd_misc.c
@@ -27,21 +27,21 @@
 #include <common.h>
 #include <command.h>
 
-int do_sleep (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_sleep(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
        ulong start = get_timer(0);
        ulong delay;
 
        if (argc != 2)
-               return cmd_usage(cmdtp);
+               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);
+               udelay(100);
        }
 
        return 0;
@@ -53,3 +53,30 @@ U_BOOT_CMD(
        "N\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