soc/intel/common/block: Add Intel common SMBus code

Add below code support under intel/common/block:

* SMBus read/write byte APIs
* Common SMBus initialization code

Change-Id: I936143a334c31937d557c6828e5876d35b133567
Signed-off-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-on: https://review.coreboot.org/19372
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

1 files changed, 22 insertions, 0 deletions

diff --git a/src/soc/intel/common/block/include/intelblocks/smbus.h b/src/soc/intel/common/block/include/intelblocks/smbus.h
new file mode 100644
index 0000000000..262a9e8e65
--- /dev/null
+++ b/src/soc/intel/common/block/include/intelblocks/smbus.h
@@ -0,0 +1,22 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2017 Intel Corporation.
+ *
+ * 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.
+ */
+
+#ifndef SOC_INTEL_COMMON_BLOCK_SMBUS_H
+#define SOC_INTEL_COMMON_BLOCK_SMBUS_H
+
+/* Program SMBus IO base, enable host Controller interface, clear status reg */
+void smbus_common_init(void);
+
+#endif	/* SOC_INTEL_COMMON_BLOCK_SMBUS_H */