diff --git a/src/soc/amd/glinda/include/soc/data_fabric.h b/src/soc/amd/glinda/include/soc/data_fabric.h
index 0bb9561064..32cbd20930 100644
--- a/src/soc/amd/glinda/include/soc/data_fabric.h
+++ b/src/soc/amd/glinda/include/soc/data_fabric.h
@@ -8,10 +8,36 @@
 #include <types.h>
 
 /* SoC-specific bits in D18F0_MMIO_CTRL0 */
-#define   DF_MMIO_NP			BIT(16)
+#define   DF_MMIO_NP			BIT(3)
 
-#define IOMS0_FABRIC_ID			9
+#define IOMS0_FABRIC_ID			15
 
 #define NUM_NB_MMIO_REGS		8
 
+union df_mmio_control {
+	struct {
+		uint32_t re        :  1; /* [ 0.. 0] */
+		uint32_t we        :  1; /* [ 1.. 1] */
+		uint32_t           :  1; /* [ 2.. 2] */
+		uint32_t np        :  1; /* [ 3.. 3] */
+		uint32_t           : 12; /* [15.. 4] */
+		uint32_t fabric_id :  6; /* [21..16] */
+		uint32_t           : 10; /* [31..22] */
+	};
+	uint32_t raw;
+};
+
+union df_ficaa {
+	struct {
+		uint32_t cfg_inst_acc_en :  1; /* [ 0.. 0] */
+		uint32_t reg_num         : 10; /* [10.. 1] */
+		uint32_t func_num        :  3; /* [13..11] */
+		uint32_t b64_en          :  1; /* [14..14] */
+		uint32_t                 :  1; /* [15..15] */
+		uint32_t inst_id         :  8; /* [23..16] */
+		uint32_t                 :  8; /* [31..24] */
+	};
+	uint32_t raw;
+};
+
 #endif /* AMD_GLINDA_DATA_FABRIC_H */