diff --git a/src/soc/amd/cezanne/include/soc/data_fabric.h b/src/soc/amd/cezanne/include/soc/data_fabric.h
index 7787e19..7f18b36 100644
--- a/src/soc/amd/cezanne/include/soc/data_fabric.h
+++ b/src/soc/amd/cezanne/include/soc/data_fabric.h
@@ -8,6 +8,25 @@
 
 #define IOMS0_FABRIC_ID			10
 
+#define DF_PCI_CFG_MAP0			DF_REG_ID(0, 0xa0)
+
+#define DF_PCI_CFG_MAP_COUNT		8
+
+#define DF_PCI_CFG_MAP(reg)		(DF_PCI_CFG_MAP0 + (reg) * sizeof(uint32_t))
+
+union df_pci_cfg_map {
+	struct {
+		uint32_t re		:  1; /* [ 0.. 0] */
+		uint32_t we		:  1; /* [ 1.. 1] */
+		uint32_t		:  2; /* [ 2.. 3] */
+		uint32_t dst_fabric_id	: 10; /* [ 4..13] */
+		uint32_t		:  2; /* [14..15] */
+		uint32_t bus_num_base	:  8; /* [16..23] */
+		uint32_t bus_num_limit	:  8; /* [24..31] */
+	};
+	uint32_t raw;
+};
+
 #define DF_IO_BASE0			DF_REG_ID(0, 0xc0)
 #define DF_IO_LIMIT0			DF_REG_ID(0, 0xc4)