board: beagle: Add BeagleBone AI-64 support

Add base support for BeagleBone AI-64 board support.

Further information at  https://beagleboard.org/ai-64

Signed-off-by: Nishanth Menon <nm@ti.com>
diff --git a/board/beagle/beagleboneai64/sec-cfg.yaml b/board/beagle/beagleboneai64/sec-cfg.yaml
new file mode 100644
index 0000000..1eab588
--- /dev/null
+++ b/board/beagle/beagleboneai64/sec-cfg.yaml
@@ -0,0 +1,380 @@
+# SPDX-License-Identifier: GPL-2.0+
+# Copyright (C) 2022-2023 Texas Instruments Incorporated - https://www.ti.com/
+#
+# Security configuration for J721E
+#
+
+---
+
+sec-cfg:
+        rev:
+                boardcfg_abi_maj: 0x0
+                boardcfg_abi_min: 0x1
+        processor_acl_list:
+                subhdr:
+                        magic: 0xF1EA
+                        size: 164
+                proc_acl_entries:
+                        - #1
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #2
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #3
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #4
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #5
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #6
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #7
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #8
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #9
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #10
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #11
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #12
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #13
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #14
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #15
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #16
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #17
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #18
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #19
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #20
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #21
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #22
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #23
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #24
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #25
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #26
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #27
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #28
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #29
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #30
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #31
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+                        - #32
+                                processor_id: 0
+                                proc_access_master: 0
+                                proc_access_secondary: [0, 0, 0]
+
+        host_hierarchy:
+                subhdr:
+                        magic: 0x8D27
+                        size: 68
+                host_hierarchy_entries:
+                        - #1
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #2
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #3
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #4
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #5
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #6
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #7
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #8
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #9
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #10
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #11
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #12
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #13
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #14
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #15
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #16
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #17
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #18
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #19
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #20
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #21
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #22
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #23
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #24
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #25
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #26
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #27
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #28
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #29
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #30
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #31
+                                host_id: 0
+                                supervisor_host_id: 0
+                        - #32
+                                host_id: 0
+                                supervisor_host_id: 0
+        otp_config:
+                subhdr:
+                        magic: 0x4081
+                        size: 69
+                otp_entry:
+                        - #1
+                                host_id: 0
+                                host_perms: 0
+                        - #2
+                                host_id: 0
+                                host_perms: 0
+                        - #3
+                                host_id: 0
+                                host_perms: 0
+                        - #4
+                                host_id: 0
+                                host_perms: 0
+                        - #5
+                                host_id: 0
+                                host_perms: 0
+                        - #6
+                                host_id: 0
+                                host_perms: 0
+                        - #7
+                                host_id: 0
+                                host_perms: 0
+                        - #8
+                                host_id: 0
+                                host_perms: 0
+                        - #9
+                                host_id: 0
+                                host_perms: 0
+                        - #10
+                                host_id: 0
+                                host_perms: 0
+                        - #11
+                                host_id: 0
+                                host_perms: 0
+                        - #12
+                                host_id: 0
+                                host_perms: 0
+                        - #13
+                                host_id: 0
+                                host_perms: 0
+                        - #14
+                                host_id: 0
+                                host_perms: 0
+                        - #15
+                                host_id: 0
+                                host_perms: 0
+                        - #16
+                                host_id: 0
+                                host_perms: 0
+                        - #17
+                                host_id: 0
+                                host_perms: 0
+                        - #18
+                                host_id: 0
+                                host_perms: 0
+                        - #19
+                                host_id: 0
+                                host_perms: 0
+                        - #20
+                                host_id: 0
+                                host_perms: 0
+                        - #21
+                                host_id: 0
+                                host_perms: 0
+                        - #22
+                                host_id: 0
+                                host_perms: 0
+                        - #23
+                                host_id: 0
+                                host_perms: 0
+                        - #24
+                                host_id: 0
+                                host_perms: 0
+                        - #25
+                                host_id: 0
+                                host_perms: 0
+                        - #26
+                                host_id: 0
+                                host_perms: 0
+                        - #27
+                                host_id: 0
+                                host_perms: 0
+                        - #28
+                                host_id: 0
+                                host_perms: 0
+                        - #29
+                                host_id: 0
+                                host_perms: 0
+                        - #30
+                                host_id: 0
+                                host_perms: 0
+                        - #31
+                                host_id: 0
+                                host_perms: 0
+                        - #32
+                                host_id: 0
+                                host_perms: 0
+                write_host_id: 0
+        dkek_config:
+                subhdr:
+                        magic: 0x5170
+                        size: 12
+                allowed_hosts: [128, 0, 0, 0]
+                allow_dkek_export_tisci: 0x5A
+                rsvd: [0, 0, 0]
+        sa2ul_cfg:
+                subhdr:
+                        magic: 0x23BE
+                        size: 0
+                auth_resource_owner: 0
+                enable_saul_psil_global_config_writes: 0
+                rsvd: [0, 0]
+        sec_dbg_config:
+                subhdr:
+                        magic: 0x42AF
+                        size: 16
+                allow_jtag_unlock: 0x5A
+                allow_wildcard_unlock: 0x5A
+                allowed_debug_level_rsvd: 0
+                rsvd: 0
+                min_cert_rev: 0x0
+                jtag_unlock_hosts: [0, 0, 0, 0]
+        sec_handover_cfg:
+                subhdr:
+                        magic: 0x608F
+                        size: 10
+                handover_msg_sender: 0
+                handover_to_host_id: 0
+                rsvd: [0, 0, 0, 0]