This patch allows the RCA RM4100 to reboot. Upon rebooting in auto.c it detects if the memory is already initialized, if so it issues a hard reset through the southbridge.

Signed-off-by: Joseph Smith <joe@settoplinux.org>
Acked-by: Stefan Reinauer <stepan@coresystems.de>

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3322 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 30 insertions, 0 deletions

diff --git a/src/northbridge/intel/i82830/memory_initialized.c b/src/northbridge/intel/i82830/memory_initialized.c
new file mode 100644
index 0000000..d67d9ff
--- /dev/null
+++ b/src/northbridge/intel/i82830/memory_initialized.c
@@ -0,0 +1,30 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008 Joseph Smith <joe@settoplinux.org>
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 "i82830.h"
+#define NB_DEV PCI_DEV(0, 0, 0)
+
+static inline int memory_initialized(void)
+{
+	u32 drc;
+	drc = pci_read_config32(NB_DEV, DRC);
+	return (drc & (1<<29));
+}