This patch implements MBI (modular bios interface) support to the i830 chipset.

This is needed on the IP1000T to get VGA output. The VGA option rom will ask
through an SMI for hardware specifics (in form of a VBT, video bios table)
which the SMI handler copies into the VGA option rom. 

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5177 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 30 insertions, 0 deletions

diff --git a/src/mainboard/rca/rm4100/mainboard_smi.c b/src/mainboard/rca/rm4100/mainboard_smi.c
new file mode 100644
index 0000000000..3e242359ee
--- /dev/null
+++ b/src/mainboard/rca/rm4100/mainboard_smi.c
@@ -0,0 +1,30 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008-2009 coresystems GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <arch/io.h>
+#include <arch/romcc_io.h>
+#include <console/console.h>
+
+int mainboard_io_trap_handler(int smif)
+{
+	printk_debug("MAINBOARD IO TRAP HANDLER!\n");
+	return 1;
+}