diff --git a/src/soc/amd/common/block/include/amdblocks/root_complex.h b/src/soc/amd/common/block/include/amdblocks/root_complex.h
index bfabf973a7..c60872aa2a 100644
--- a/src/soc/amd/common/block/include/amdblocks/root_complex.h
+++ b/src/soc/amd/common/block/include/amdblocks/root_complex.h
@@ -11,6 +11,11 @@
 #define SMN_IOHC_MISC_BASE_13D1	0x13d10000
 #define SMN_IOHC_MISC_BASE_13E1	0x13e10000
 
+#define SMN_IOHC_MISC_BASE_1D41	0x1d410000
+#define SMN_IOHC_MISC_BASE_1D51	0x1d510000
+#define SMN_IOHC_MISC_BASE_1D61	0x1d610000
+#define SMN_IOHC_MISC_BASE_1D71	0x1d710000
+
 #define IOHC_MMIO_EN	BIT(0)
 
 #define NON_PCI_RES_IDX_AUTO	0