diff --git a/drivers/auth/dualroot/cot.c b/drivers/auth/dualroot/cot.c
index 68f3d46..e1e47bc 100644
--- a/drivers/auth/dualroot/cot.c
+++ b/drivers/auth/dualroot/cot.c
@@ -743,29 +743,60 @@
 				.ptr = (void *)sp_pkg_hash_buf[3],
 				.len = (unsigned int)HASH_DER_LEN
 			}
+		}
+	}
+};
+
+DEFINE_SIP_SP_PKG(1);
+DEFINE_SIP_SP_PKG(2);
+DEFINE_SIP_SP_PKG(3);
+DEFINE_SIP_SP_PKG(4);
+
+static const auth_img_desc_t plat_sp_content_cert = {
+	.img_id = PLAT_SP_CONTENT_CERT_ID,
+	.img_type = IMG_CERT,
+	.parent = NULL,
+	.img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) {
+		[0] = {
+			.type = AUTH_METHOD_SIG,
+			.param.sig = {
+				.pk = &prot_pk,
+				.sig = &sig,
+				.alg = &sig_alg,
+				.data = &raw_data
+			}
 		},
-		[4] = {
+		[1] = {
+			.type = AUTH_METHOD_NV_CTR,
+			.param.nv_ctr = {
+				.cert_nv_ctr = &non_trusted_nv_ctr,
+				.plat_nv_ctr = &non_trusted_nv_ctr
+			}
+		}
+	},
+	.authenticated_data = (const auth_param_desc_t[COT_MAX_VERIFIED_PARAMS]) {
+		[0] = {
 			.type_desc = &sp_pkg5_hash,
 			.data = {
 				.ptr = (void *)sp_pkg_hash_buf[4],
 				.len = (unsigned int)HASH_DER_LEN
 			}
 		},
-		[5] = {
+		[1] = {
 			.type_desc = &sp_pkg6_hash,
 			.data = {
 				.ptr = (void *)sp_pkg_hash_buf[5],
 				.len = (unsigned int)HASH_DER_LEN
 			}
 		},
-		[6] = {
+		[2] = {
 			.type_desc = &sp_pkg7_hash,
 			.data = {
 				.ptr = (void *)sp_pkg_hash_buf[6],
 				.len = (unsigned int)HASH_DER_LEN
 			}
 		},
-		[7] = {
+		[3] = {
 			.type_desc = &sp_pkg8_hash,
 			.data = {
 				.ptr = (void *)sp_pkg_hash_buf[7],
@@ -775,14 +806,10 @@
 	}
 };
 
-DEFINE_SIP_SP_PKG(1);
-DEFINE_SIP_SP_PKG(2);
-DEFINE_SIP_SP_PKG(3);
-DEFINE_SIP_SP_PKG(4);
-DEFINE_SIP_SP_PKG(5);
-DEFINE_SIP_SP_PKG(6);
-DEFINE_SIP_SP_PKG(7);
-DEFINE_SIP_SP_PKG(8);
+DEFINE_PLAT_SP_PKG(5);
+DEFINE_PLAT_SP_PKG(6);
+DEFINE_PLAT_SP_PKG(7);
+DEFINE_PLAT_SP_PKG(8);
 #endif /* SPD_spmd */
 
 #else  /* IMAGE_BL2 */
@@ -915,6 +942,7 @@
 	[NT_FW_CONFIG_ID]			=	&nt_fw_config,
 #if defined(SPD_spmd)
 	[SIP_SP_CONTENT_CERT_ID]		=	&sip_sp_content_cert,
+	[PLAT_SP_CONTENT_CERT_ID]		=	&plat_sp_content_cert,
 	[SP_PKG1_ID]				=	&sp_pkg1,
 	[SP_PKG2_ID]				=	&sp_pkg2,
 	[SP_PKG3_ID]				=	&sp_pkg3,
diff --git a/include/common/tbbr/tbbr_img_def.h b/include/common/tbbr/tbbr_img_def.h
index b29b135..bd125e6 100644
--- a/include/common/tbbr/tbbr_img_def.h
+++ b/include/common/tbbr/tbbr_img_def.h
@@ -11,16 +11,17 @@
 
 #if defined(SPD_spmd)
 #define SIP_SP_CONTENT_CERT_ID		MAX_IMAGE_IDS
-#define SP_PKG1_ID			(MAX_IMAGE_IDS + 1)
-#define SP_PKG2_ID			(MAX_IMAGE_IDS + 2)
-#define SP_PKG3_ID			(MAX_IMAGE_IDS + 3)
-#define SP_PKG4_ID			(MAX_IMAGE_IDS + 4)
-#define SP_PKG5_ID			(MAX_IMAGE_IDS + 5)
-#define SP_PKG6_ID			(MAX_IMAGE_IDS + 6)
-#define SP_PKG7_ID			(MAX_IMAGE_IDS + 7)
-#define SP_PKG8_ID			(MAX_IMAGE_IDS + 8)
+#define PLAT_SP_CONTENT_CERT_ID		(MAX_IMAGE_IDS + 1)
+#define SP_PKG1_ID			(MAX_IMAGE_IDS + 2)
+#define SP_PKG2_ID			(MAX_IMAGE_IDS + 3)
+#define SP_PKG3_ID			(MAX_IMAGE_IDS + 4)
+#define SP_PKG4_ID			(MAX_IMAGE_IDS + 5)
+#define SP_PKG5_ID			(MAX_IMAGE_IDS + 6)
+#define SP_PKG6_ID			(MAX_IMAGE_IDS + 7)
+#define SP_PKG7_ID			(MAX_IMAGE_IDS + 8)
+#define SP_PKG8_ID			(MAX_IMAGE_IDS + 9)
 #define MAX_SP_IDS			U(8)
-#define MAX_NUMBER_IDS			(MAX_IMAGE_IDS + MAX_SP_IDS + U(1))
+#define MAX_NUMBER_IDS			(MAX_IMAGE_IDS + MAX_SP_IDS + U(2))
 #else
 #define MAX_NUMBER_IDS			MAX_IMAGE_IDS
 #endif
diff --git a/include/drivers/auth/auth_mod.h b/include/drivers/auth/auth_mod.h
index 504e539..3965b58 100644
--- a/include/drivers/auth/auth_mod.h
+++ b/include/drivers/auth/auth_mod.h
@@ -51,11 +51,15 @@
 extern unsigned int auth_img_flags[MAX_NUMBER_IDS];
 
 #if defined(SPD_spmd)
-#define DEFINE_SIP_SP_PKG(n) \
+
+#define DEFINE_SIP_SP_PKG(n)		DEFINE_SP_PKG(n, sip_sp_content_cert)
+#define DEFINE_PLAT_SP_PKG(n)		DEFINE_SP_PKG(n, plat_sp_content_cert)
+
+#define DEFINE_SP_PKG(n, cert) \
 	static const auth_img_desc_t sp_pkg##n = { \
 		.img_id = SP_PKG##n##_ID, \
 		.img_type = IMG_RAW, \
-		.parent = &sip_sp_content_cert, \
+		.parent = &cert, \
 		.img_auth_methods = (const auth_method_desc_t[AUTH_METHOD_NUM]) { \
 			[0] = { \
 				.type = AUTH_METHOD_HASH, \
@@ -66,6 +70,7 @@
 			} \
 		} \
 	}
+
 #endif
 
 #endif /* TRUSTED_BOARD_BOOT */