diff --git a/src/soc/intel/common/block/cse/cse_lite_cmos.c b/src/soc/intel/common/block/cse/cse_lite_cmos.c
index 5fc3fb0..02d0232 100644
--- a/src/soc/intel/common/block/cse/cse_lite_cmos.c
+++ b/src/soc/intel/common/block/cse/cse_lite_cmos.c
@@ -37,6 +37,8 @@
 # endif
 #endif
 
+#define PSR_BACKUP_STATUS_SIGNATURE 0x42525350	/* 'PSRB' */
+
 /* Helper function to read CSE fpt information from cmos memory. */
 void cmos_read_fw_partition_info(struct cse_specific_info *info)
 {
@@ -50,3 +52,70 @@
 	for (uint8_t *p = (uint8_t *)info, i = 0; i < sizeof(*info); i++, p++)
 		cmos_write(*p, PARTITION_FW_CMOS_OFFSET + i);
 }
+
+/* Read and validate `psr_backup_status` structure from CMOS */
+static int psr_backup_status_cmos_read(struct psr_backup_status *psr)
+{
+	for (uint8_t *p = (uint8_t *)psr, i = 0; i < sizeof(*psr); i++, p++)
+		*p = cmos_read(PARTITION_FW_CMOS_OFFSET + sizeof(struct cse_specific_info) + i);
+
+	/* Verify signature */
+	if (psr->signature != PSR_BACKUP_STATUS_SIGNATURE) {
+		printk(BIOS_ERR, "PSR backup status invalid signature\n");
+		return -1;
+	}
+
+	/* Verify checksum over signature and backup_status only */
+	uint16_t csum = compute_ip_checksum(psr, offsetof(struct psr_backup_status, checksum));
+
+	if (csum != psr->checksum) {
+		printk(BIOS_ERR, "PSR backup status checksum mismatch\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+/* Write `psr_backup_status structure` to CMOS */
+static void psr_backup_status_cmos_write(struct psr_backup_status *psr)
+{
+	/* Checksum over signature and backup_status only */
+	psr->checksum = compute_ip_checksum(
+		psr, offsetof(struct psr_backup_status, checksum));
+
+	for (uint8_t *p = (uint8_t *)psr, i = 0; i < sizeof(*psr); i++, p++)
+		cmos_write(*p, PARTITION_FW_CMOS_OFFSET + sizeof(struct cse_specific_info) + i);
+}
+
+/* Helper function to update the `psr_backup_status` in CMOS memory */
+void update_psr_backup_status(int8_t status)
+{
+	struct psr_backup_status psr;
+
+	/* Read and update psr_backup_status */
+	if (psr_backup_status_cmos_read(&psr) < 0)
+		/* Structure invalid, re-initialize */
+		psr.signature = PSR_BACKUP_STATUS_SIGNATURE;
+
+	psr.value = status;
+
+	/* Write the new status to CMOS */
+	psr_backup_status_cmos_write(&psr);
+
+	printk(BIOS_INFO, "PSR backup status updated\n");
+}
+
+/*
+ * Helper function to retrieve the current `psr_backup_status` in CMOS memory
+ * Returns current status on success, the status can be PSR_BACKUP_DONE or PSR_BACKUP_PENDING.
+ * Returns -1 in case of signature mismatch or checksum failure.
+ */
+int8_t get_psr_backup_status(void)
+{
+	struct psr_backup_status psr;
+
+	if (psr_backup_status_cmos_read(&psr) < 0)
+		return -1;
+
+	return psr.value;
+}
diff --git a/src/soc/intel/common/block/cse/cse_lite_cmos.h b/src/soc/intel/common/block/cse/cse_lite_cmos.h
index a6dd6ce7..c8cd6e3 100644
--- a/src/soc/intel/common/block/cse/cse_lite_cmos.h
+++ b/src/soc/intel/common/block/cse/cse_lite_cmos.h
@@ -11,4 +11,14 @@
 /* Helper function to write CSE fpt information to cmos memory. */
 void cmos_write_fw_partition_info(const struct cse_specific_info *info);
 
+/* Helper function to update the `psr_backup_status` in CMOS memory */
+void update_psr_backup_status(int8_t status);
+
+/*
+ * Helper function to retrieve the current `psr_backup_status` in CMOS memory
+ * Returns current status on success, the status can be PSR_BACKUP_DONE or PSR_BACKUP_PENDING.
+ * Returns -1 in case of signature mismatch or checksum failure.
+ */
+int8_t get_psr_backup_status(void);
+
 #endif /* SOC_INTEL_COMMON_BLOCK_CSE_LITE_CMOS_H */
diff --git a/src/soc/intel/common/block/include/intelblocks/cse.h b/src/soc/intel/common/block/include/intelblocks/cse.h
index 0f73568..ebf20ed 100644
--- a/src/soc/intel/common/block/include/intelblocks/cse.h
+++ b/src/soc/intel/common/block/include/intelblocks/cse.h
@@ -167,6 +167,18 @@
 	uint32_t crc;
 };
 
+/* PSR backup status */
+enum psr_backup_state {
+	PSR_BACKUP_DONE	= 0,
+	PSR_BACKUP_PENDING = 1,
+};
+
+struct psr_backup_status {
+	uint32_t signature;
+	int8_t value;
+	uint16_t checksum;
+};
+
 /* CSE RX and TX error status */
 enum cse_tx_rx_status {
 	/*