6 files changed, 66 insertions, 0 deletions
diff --git a/src/mainboard/amd/majolica/Makefile.inc b/src/mainboard/amd/majolica/Makefile.inc
index 7c146cf97e..23e9dd1b5e 100644
--- a/src/mainboard/amd/majolica/Makefile.inc
+++ b/src/mainboard/amd/majolica/Makefile.inc
@@ -3,6 +3,8 @@
 bootblock-y += bootblock.c
 bootblock-y += early_gpio.c
 
+romstage-y += port_descriptors.c
+
 ramstage-y += chromeos.c
 
 APCB_SOURCES = $(MAINBOARD_BLOBS_DIR)/APCB_CZN_D4.bin
diff --git a/src/mainboard/amd/majolica/port_descriptors.c b/src/mainboard/amd/majolica/port_descriptors.c
new file mode 100644
index 0000000000..913e48bb60
--- /dev/null
+++ b/src/mainboard/amd/majolica/port_descriptors.c
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/platform_descriptors.h>
+#include <types.h>
+
+static const fsp_dxio_descriptor majolica_czn_dxio_descriptors[] = {
+};
+
+static const fsp_ddi_descriptor majolica_czn_ddi_descriptors[] = {
+};
+
+void mainboard_get_dxio_ddi_descriptors(
+		const fsp_dxio_descriptor **dxio_descs, size_t *dxio_num,
+		const fsp_ddi_descriptor **ddi_descs, size_t *ddi_num)
+{
+	*dxio_descs = majolica_czn_dxio_descriptors;
+	*dxio_num = ARRAY_SIZE(majolica_czn_dxio_descriptors);
+	*ddi_descs = majolica_czn_ddi_descriptors;
+	*ddi_num = ARRAY_SIZE(majolica_czn_ddi_descriptors);
+}
diff --git a/src/mainboard/google/guybrush/Makefile.inc b/src/mainboard/google/guybrush/Makefile.inc
index 263483fd33..d4eeaf5e56 100644
--- a/src/mainboard/google/guybrush/Makefile.inc
+++ b/src/mainboard/google/guybrush/Makefile.inc
@@ -10,6 +10,8 @@ else
 $(info APCB sources not found.  Skipping APCB.)
 endif
 
+romstage-y += port_descriptors.c
+
 ramstage-y += mainboard.c
 ramstage-y += ec.c
 ramstage-$(CONFIG_CHROMEOS) += chromeos.c
diff --git a/src/mainboard/google/guybrush/port_descriptors.c b/src/mainboard/google/guybrush/port_descriptors.c
new file mode 100644
index 0000000000..d407fe9302
--- /dev/null
+++ b/src/mainboard/google/guybrush/port_descriptors.c
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/platform_descriptors.h>
+#include <types.h>
+
+static const fsp_dxio_descriptor guybrush_czn_dxio_descriptors[] = {
+};
+
+static const fsp_ddi_descriptor guybrush_czn_ddi_descriptors[] = {
+};
+
+void mainboard_get_dxio_ddi_descriptors(
+		const fsp_dxio_descriptor **dxio_descs, size_t *dxio_num,
+		const fsp_ddi_descriptor **ddi_descs, size_t *ddi_num)
+{
+	*dxio_descs = guybrush_czn_dxio_descriptors;
+	*dxio_num = ARRAY_SIZE(guybrush_czn_dxio_descriptors);
+	*ddi_descs = guybrush_czn_ddi_descriptors;
+	*ddi_num = ARRAY_SIZE(guybrush_czn_ddi_descriptors);
+}
diff --git a/src/mainboard/google/mancomb/Makefile.inc b/src/mainboard/google/mancomb/Makefile.inc
index ccf90559c8..21e71d7a44 100644
--- a/src/mainboard/google/mancomb/Makefile.inc
+++ b/src/mainboard/google/mancomb/Makefile.inc
@@ -4,6 +4,8 @@ bootblock-y += bootblock.c
 
 verstage-y += verstage.c
 
+romstage-y += port_descriptors.c
+
 ramstage-y += ec.c
 ramstage-y += mainboard.c
 ramstage-$(CONFIG_CHROMEOS) += chromeos.c
diff --git a/src/mainboard/google/mancomb/port_descriptors.c b/src/mainboard/google/mancomb/port_descriptors.c
new file mode 100644
index 0000000000..8a761fecab
--- /dev/null
+++ b/src/mainboard/google/mancomb/port_descriptors.c
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/platform_descriptors.h>
+#include <types.h>
+
+static const fsp_dxio_descriptor mancomb_czn_dxio_descriptors[] = {
+};
+
+static const fsp_ddi_descriptor mancomb_czn_ddi_descriptors[] = {
+};
+
+void mainboard_get_dxio_ddi_descriptors(
+		const fsp_dxio_descriptor **dxio_descs, size_t *dxio_num,
+		const fsp_ddi_descriptor **ddi_descs, size_t *ddi_num)
+{
+	*dxio_descs = mancomb_czn_dxio_descriptors;
+	*dxio_num = ARRAY_SIZE(mancomb_czn_dxio_descriptors);
+	*ddi_descs = mancomb_czn_ddi_descriptors;
+	*ddi_num = ARRAY_SIZE(mancomb_czn_ddi_descriptors);
+}