[src/trunk]: src/sys/dev/ic Revert the part of revision 1.228 that made HW_NO...

[tls <tls%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/326a32c91574
branches:  trunk
changeset: 581983:326a32c91574
user:      tls <tls%NetBSD.org@localhost>
date:      Sun Jun 12 21:10:47 2005 +0000

description:
Revert the part of revision 1.228 that made HW_NO_TXPRELOAD the default:
it appears to break output on the Soekris net4501, which is a rather
popular platform.

This should fix PR kern/29612 -- if not, I will probably revert it again.

diffstat:

 sys/dev/ic/com.c |  7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diffs (35 lines):

diff -r 41ef07faf36b -r 326a32c91574 sys/dev/ic/com.c
--- a/sys/dev/ic/com.c  Sun Jun 12 20:25:26 2005 +0000
+++ b/sys/dev/ic/com.c  Sun Jun 12 21:10:47 2005 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: com.c,v 1.232 2005/02/27 00:27:01 perry Exp $  */
+/*     $NetBSD: com.c,v 1.233 2005/06/12 21:10:47 tls Exp $    */
 
 /*-
  * Copyright (c) 1998, 1999, 2004 The NetBSD Foundation, Inc.
@@ -73,7 +73,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: com.c,v 1.232 2005/02/27 00:27:01 perry Exp $");
+__KERNEL_RCSID(0, "$NetBSD: com.c,v 1.233 2005/06/12 21:10:47 tls Exp $");
 
 #include "opt_com.h"
 #include "opt_ddb.h"
@@ -1751,7 +1751,6 @@
                bus_space_write_1(iot, ioh, com_ier, sc->sc_ier);
        }
 
-#if 0
        /* Output the first chunk of the contiguous buffer. */
        if (!ISSET(sc->sc_hwflags, COM_HW_NO_TXPRELOAD)) {
                u_int n;
@@ -1763,7 +1762,7 @@
                sc->sc_tbc -= n;
                sc->sc_tba += n;
        }
-#endif
+
        COM_UNLOCK(sc);
 out:
        splx(s);