broadcom/cygnus: add new SoC driver

This commit covers bootblock and romstage.

BUG=none
BRANCH=tot
TEST=ran emerge-purin coreboot

Change-Id: I88e2dffb9e46ba5b066190e844a6a7302adcfdc7
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: b3af6343a74263f086fe82c600559e8204e7dec0
Original-Change-Id: I447ed5f6ed181cfc9d5521b8c57e5fe0036a3f71
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/242854
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9750
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 41 insertions, 0 deletions

diff --git a/src/soc/broadcom/cygnus/spi.c b/src/soc/broadcom/cygnus/spi.c
new file mode 100644
index 0000000000..16e09ae79f
--- /dev/null
+++ b/src/soc/broadcom/cygnus/spi.c
@@ -0,0 +1,41 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2015 Google Inc.
+ *
+ * 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 <stddef.h>
+#include <spi-generic.h>
+
+struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs)
+{
+	return NULL;
+}
+
+int spi_claim_bus(struct spi_slave *slave)
+{
+	return 0;
+}
+
+void spi_release_bus(struct spi_slave *slave)
+{
+}
+
+int spi_xfer(struct spi_slave *slave, const void *dout,
+	     unsigned out_bytes, void *din, unsigned in_bytes)
+{
+	return 0;
+}