Index: sys/dev/ichsmb/ichsmb.c
===================================================================
--- sys/dev/ichsmb/ichsmb.c
+++ sys/dev/ichsmb/ichsmb.c
@@ -608,7 +608,8 @@
 			sc->ich_cmd = -1;
 			bus_write_1(sc->io_res,
 			    ICH_HST_STA, status);
-			wakeup(sc);
+			if (!cold)
+				wakeup(sc);
 			break;
 		}
 
@@ -637,8 +638,25 @@
 	KASSERT(sc->ich_cmd != -1,
 	    ("%s: ich_cmd=%d\n", __func__ , sc->ich_cmd));
 	mtx_assert(&sc->mutex, MA_OWNED);
-	error = msleep(sc, &sc->mutex, PZERO, "ichsmb", hz / 4);
-	DBG("msleep -> %d\n", error);
+	if (cold) {
+		const u_int timeout_us = hz / 4 * 1000;
+		const u_int delay_us = 500;
+		u_int i;
+
+		error = EWOULDBLOCK;
+		for (i = 0; i < timeout_us; i += delay_us) {
+			mtx_unlock(&sc->mutex);
+			DELAY(delay_us);
+			mtx_lock(&sc->mutex);
+			if (sc->ich_cmd == -1) {
+				error = 0;
+				break;
+			}
+		}
+	} else {
+		error = msleep(sc, &sc->mutex, PZERO, "ichsmb", hz / 4);
+		DBG("msleep -> %d\n", error);
+	}
 	switch (error) {
 	case 0:
 		smb_error = sc->smb_error;