2 files changed, 36 insertions, 0 deletions
diff --git a/src/soc/amd/phoenix/chip.h b/src/soc/amd/phoenix/chip.h
index e3cadc24a3..0fccb53824 100644
--- a/src/soc/amd/phoenix/chip.h
+++ b/src/soc/amd/phoenix/chip.h
@@ -15,6 +15,8 @@
 #include <types.h>
 #if CONFIG(PLATFORM_USES_FSP2_0)
 #include <vendorcode/amd/fsp/phoenix/FspUsb.h>
+#else
+#include "chip_opensil.h"
 #endif
 
 struct soc_amd_phoenix_config {
@@ -108,6 +110,8 @@ struct soc_amd_phoenix_config {
 #if CONFIG(PLATFORM_USES_FSP2_0)
 	uint8_t usb_phy_custom;
 	struct usb_phy_config usb_phy;
+#else
+	struct ddi_descriptor ddi[DDI_DESCRIPTOR_COUNT];
 #endif
 };
 
diff --git a/src/soc/amd/phoenix/chip_opensil.h b/src/soc/amd/phoenix/chip_opensil.h
new file mode 100644
index 0000000000..fcaa85c5e3
--- /dev/null
+++ b/src/soc/amd/phoenix/chip_opensil.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <types.h>
+
+#define DDI_DESCRIPTOR_COUNT	5
+
+/* DDI display connector type */
+enum ddi_connector_type {
+	DDI_DP = 0,		// DP
+	DDI_EDP,		// eDP
+	DDI_SINGLE_LINK_DVI,	// Single Link DVI-D
+	DDI_DUAL_LINK_DVI,	// Dual Link DVI-D
+	DDI_HDMI,		// HDMI
+	DDI_DP_TO_VGA,		// DP-to-VGA
+	DDI_DP_TO_LVDS,		// DP-to-LVDS
+	DDI_NUTMEG_DP_TO_VGA,	// Hudson-2 NutMeg DP-to-VGA
+	DDI_SINGLE_LINK_DVI_I,	// Single Link DVI-I
+	DDI_DP_W_TYPEC,		// DP with USB type C
+	DDI_DP_WO_TYPEC,	// DP without USB type C
+	DDI_EDP_TO_LVDS,	// eDP-to-LVDS translator chip without AMD SW init
+	DDI_EDP_TO_LVDS_SW,	// eDP-to-LVDS translator which requires AMD SW init
+	DDI_AUTO_DETECT,	// VBIOS auto detect connector type
+	DDI_UNUSED_TYPE,	// UnusedType
+	DDI_MAX_CONNECTOR_TYPE	// Not valid value, used to verify input
+};
+
+/* DDI Descriptor: used for configuring display outputs */
+struct ddi_descriptor {
+	uint8_t		connector_type;	// see ddi_connector_type
+	uint8_t		aux_index;
+	uint8_t		hdp_index;
+};