1 files changed, 53 insertions, 0 deletions
diff --git a/src/southbridge/via/common/early_smbus_print_error.c b/src/southbridge/via/common/early_smbus_print_error.c
new file mode 100644
index 0000000000..7b30a71c6e
--- /dev/null
+++ b/src/southbridge/via/common/early_smbus_print_error.c
@@ -0,0 +1,53 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013  Alexandru Gagniuc <mr.nuke.me@gmail.com>
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "via_early_smbus.h"
+#include <console/console.h>
+
+/**
+ * \brief Print an error, should it occur. If no error, just exit.
+ *
+ * @param smbus_dev The base SMBus IO port
+ * @param host_status The data returned on the host status register after
+ *		      a transaction is processed.
+ * @param loops The number of times a transaction was attempted.
+ * @return	0 if no error occurred
+ * 		1 if an error was detected
+ */
+int smbus_print_error(u32 smbus_dev, u8 host_status, int loops)
+{
+	/* Check if there actually was an error. */
+	if ((host_status == 0x00 || host_status == 0x40 ||
+	     host_status == 0x42) && (loops < SMBUS_TIMEOUT))
+		return 0;
+
+	if (loops >= SMBUS_TIMEOUT)
+		printsmbus("SMBus timeout\n");
+	if (host_status & (1 << 4))
+		printsmbus("Interrupt/SMI# was Failed Bus Transaction\n");
+	if (host_status & (1 << 3))
+		printsmbus("Bus error\n");
+	if (host_status & (1 << 2))
+		printsmbus("Device error\n");
+	if (host_status & (1 << 1))
+		printsmbus("Interrupt/SMI# completed successfully\n");
+	if (host_status & (1 << 0))
+		printsmbus("Host busy\n");
+	return 1;
+}