sh_serial: enable tx after reset (Magnus Damm).


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3811 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/hw/sh_serial.c b/hw/sh_serial.c
index 324c2a8..fe409c4 100644
--- a/hw/sh_serial.c
+++ b/hw/sh_serial.c
@@ -293,7 +293,7 @@
 
     s->smr = 0;
     s->brr = 0xff;
-    s->scr = 0;
+    s->scr = 1 << 5; /* pretend that TX is enabled so early printk works */
     s->sptr = 0;
 
     if (feat & SH_SERIAL_FEAT_SCIF) {