sb/intel/x/smbus.c: Factor out common code

Since common smbus.c gets built for romstage as well, create a new file
to hold this common code. Account for ICH7 not having a memory BAR, too.

Change-Id: I4ab46750c6fb7f71cbd55848e79ecc3e44cbbd04
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48364
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/src/southbridge/intel/common/smbus_ops.h b/src/southbridge/intel/common/smbus_ops.h
new file mode 100644
index 0000000000..fbdbb9996d
--- /dev/null
+++ b/src/southbridge/intel/common/smbus_ops.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <device/device.h>
+#include <device/smbus.h>
+#include <device/smbus_host.h>
+
+extern struct smbus_bus_operations lops_smbus_bus;
+
+void smbus_read_resources(struct device *dev);