diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h
index 8003519..db12c1b 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.h
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.h
@@ -193,6 +193,9 @@
 #define SAS2_PCI_DEVICE_B0_REVISION	(0x01)
 #define SAS3_PCI_DEVICE_C0_REVISION	(0x02)
 
+/* Atlas PCIe Switch Management Port */
+#define MPI26_ATLAS_PCIe_SWITCH_DEVID	(0x00B2)
+
 /*
  * Intel HBA branding
  */
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 4a73753..8bb5b8f 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -10283,6 +10283,7 @@
 	case MPI26_MFGPAGE_DEVID_SAS3516_1:
 	case MPI26_MFGPAGE_DEVID_SAS3416:
 	case MPI26_MFGPAGE_DEVID_SAS3616:
+	case MPI26_ATLAS_PCIe_SWITCH_DEVID:
 	case MPI26_MFGPAGE_DEVID_CFG_SEC_3916:
 	case MPI26_MFGPAGE_DEVID_HARD_SEC_3916:
 	case MPI26_MFGPAGE_DEVID_CFG_SEC_3816:
@@ -10373,6 +10374,7 @@
 		case MPI26_MFGPAGE_DEVID_SAS3516_1:
 		case MPI26_MFGPAGE_DEVID_SAS3416:
 		case MPI26_MFGPAGE_DEVID_SAS3616:
+		case MPI26_ATLAS_PCIe_SWITCH_DEVID:
 			ioc->is_gen35_ioc = 1;
 			break;
 		case MPI26_MFGPAGE_DEVID_CFG_SEC_3816:
@@ -10853,6 +10855,10 @@
 	{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_HARD_SEC_3916,
 		PCI_ANY_ID, PCI_ANY_ID },
 
+	/* Atlas PCIe Switch Management Port */
+	{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_ATLAS_PCIe_SWITCH_DEVID,
+		PCI_ANY_ID, PCI_ANY_ID },
+
 	/* Sea SI 0x00E5 Configurable Secure
 	 * 0x00E6 Hard Secure
 	 */