diff --git a/plat/mediatek/mt8195/drivers/spm/mt_spm_constraint.h b/plat/mediatek/mt8195/drivers/spm/mt_spm_constraint.h
new file mode 100644
index 0000000..944c227
--- /dev/null
+++ b/plat/mediatek/mt8195/drivers/spm/mt_spm_constraint.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2021, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_SPM_CONSTRAINT_H
+#define MT_SPM_CONSTRAINT_H
+
+#include <mt_lp_rm.h>
+
+#define MT_RM_CONSTRAINT_ALLOW_CPU_BUCK_OFF	(1U << 0)
+#define MT_RM_CONSTRAINT_ALLOW_DRAM_S0		(1U << 1)
+#define MT_RM_CONSTRAINT_ALLOW_DRAM_S1		(1U << 2)
+#define MT_RM_CONSTRAINT_ALLOW_VCORE_LP		(1U << 3)
+#define MT_RM_CONSTRAINT_ALLOW_INFRA_PDN	(1U << 4)
+#define MT_RM_CONSTRAINT_ALLOW_BUS26M_OFF	(1U << 5)
+#define MT_RM_CONSTRAINT_ALLOW_AP_SUSPEND	(1U << 6)
+#define MT_RM_CONSTRAINT_ALLOW_BBLPM		(1U << 7)
+#define MT_RM_CONSTRAINT_ALLOW_XO_UFS		(1U << 8)
+#define MT_RM_CONSTRAINT_ALLOW_GPS_STATE	(1U << 9)
+#define MT_RM_CONSTRAINT_ALLOW_LVTS_STATE	(1U << 10)
+
+#define MT_SPM_RC_INVALID		0x0
+#define MT_SPM_RC_VALID_SW		(1U << 0)
+#define MT_SPM_RC_VALID_FW		(1U << 1)
+#define MT_SPM_RC_VALID_RESIDNECY	(1U << 2)
+#define MT_SPM_RC_VALID_COND_CHECK	(1U << 3)
+#define MT_SPM_RC_VALID_COND_LATCH	(1U << 4)
+#define MT_SPM_RC_VALID_UFS_H8		(1U << 5)
+#define MT_SPM_RC_VALID_FLIGHTMODE	(1U << 6)
+#define MT_SPM_RC_VALID_XSOC_BBLPM	(1U << 7)
+#define MT_SPM_RC_VALID_TRACE_EVENT	(1U << 8)
+
+#define MT_SPM_RC_VALID	(MT_SPM_RC_VALID_SW)
+
+#define IS_MT_RM_RC_READY(status)	\
+	((status & MT_SPM_RC_VALID) == MT_SPM_RC_VALID)
+
+#define MT_SPM_RC_BBLPM_MODE		\
+	(MT_SPM_RC_VALID_UFS_H8 |	\
+	 MT_SPM_RC_VALID_FLIGHTMODE |	\
+	 MT_SPM_RC_VALID_XSOC_BBLPM)
+
+#define IS_MT_SPM_RC_BBLPM_MODE(st)	\
+	((st & (MT_SPM_RC_BBLPM_MODE)) == MT_SPM_RC_BBLPM_MODE)
+
+struct constraint_status {
+	uint16_t id;
+	uint16_t valid;
+	uint32_t cond_block;
+	uint32_t enter_cnt;
+	struct mt_spm_cond_tables *cond_res;
+};
+
+enum MT_SPM_RM_RC_TYPE {
+	MT_RM_CONSTRAINT_ID_BUS26M,
+	MT_RM_CONSTRAINT_ID_SYSPLL,
+	MT_RM_CONSTRAINT_ID_DRAM,
+	MT_RM_CONSTRAINT_ID_CPU_BUCK_LDO,
+	MT_RM_CONSTRAINT_ID_ALL,
+};
+#endif /* MT_SPM_CONSTRAINT_H */