I've tried to follow wiki's instruction and I'm afraid I was not able to succeed because it seems kernel0 seems to be now protected from dtb against write changes, or something like that
UAP-HD-BZ.6.5.28# mtd write /tmp/sysupgrade.bin /dev/mtd12
Could not open mtd device: /dev/mtd12
Can't open device for writing!
On the other hand, I tried to use the tftpsrv approach from u-boot, without any success either:
Board: Ubiquiti Networks AR7240 board (e530-28.0000)
WARNING:Boot selection logic magic mismatch!
UBNT application initialized
Erasing cfg partition ...... done.
Erasing APPSBLENV partition ...... done.
Link 2 status changed
Half duplex link
Link 2 up, Phy_status = a070a0a
Port:2 speed 100Mbps
Using eth0 device
Listening for TFTP transfer on 192.168.1.20
Load address: 0x44000000
Loading: T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T #################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
############################
done
Bytes transferred = 7463290 (71e17a hex)
ERROR: Firmware Type Error!
When trying to use tftpboot, it complains about missing root params:
(IPQ) # tftpboot 0x44000000 firmware
Using eth0 device
TFTP from server 192.168.1.3; our IP address is 192.168.1.20
Filename 'firmware'.
Load address: 0x44000000
Loading: #################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
##################################################
done
Bytes transferred = 7405877 (710135 hex)
(IPQ) # bootm
## Booting kernel from FIT Image at 44000000 ...
Using 'config@1' configuration
Trying 'kernel-1' kernel subimage
Description: ARM OpenWrt Linux-5.10.176
Type: Kernel Image
Compression: lzma compressed
Data Start: 0x440000e4
Data Size: 3070466 Bytes = 2.9 MiB
Architecture: ARM
OS: Linux
Load Address: 0x42208000
Entry Point: 0x42208000
Hash algo: crc32
Hash value: 442fbb0b
Hash algo: sha1
Hash value: 8f1ccaffb7550437bafc1f558492d1f968425e9f
Verifying Hash Integrity ... crc32+ sha1+ OK
## Flattened Device Tree from FIT Image at 44000000
Using 'config@1' configuration
Trying 'fdt-1' FDT blob subimage
Description: ARM OpenWrt ubnt_unifi-ac-hd device tree blob
Type: Flat Device Tree
Compression: uncompressed
Data Start: 0x442edc24
Data Size: 29305 Bytes = 28.6 KiB
Architecture: ARM
Hash algo: crc32
Hash value: 166e6ef9
Hash algo: sha1
Hash value: 84da2ae9bb8938b1cc5b472286f0db45b8cccd47
Verifying Hash Integrity ... crc32+ sha1+ OK
Booting using the fdt blob at 0x442edc24
Uncompressing Kernel Image ... OK
Loading Device Tree to 5eaf5000, end 5eaff278 ... OK
mtdparts = mtdparts=nand0:128K@0x0(0:SBL1),64K@0x20000(0:MIBIB),128K@0x30000(0:SBL2),192K@0x50000(0:SBL3),64K@0x80000(0:DDRCONFIG),64K@0x90000(0:SSD),192K@0xa0000(0:TZ),128K@0xd0000(0:RPM),768K@0xf0000(0:APPSBL,
Using machid 0x13ec from environment
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 5.10.176 (builder@buildhost) (arm-openwrt-linux-muslgnueabi-gcc (OpenWrt GCC 11.2.0 r20134-5f15225c1e) 11.2.0, GNU ld (GNU Binutils) 2.37) #0 SMP Thu Apr 27 20:28:15 2023
[ 0.000000] CPU: ARMv7 Processor [512f04d0] revision 0 (ARMv7), cr=10c5787d
[ 0.000000] CPU: div instructions available: patching division code
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[ 0.000000] OF: fdt: Machine model: Ubiquiti UniFi AC HD
[ 0.000000] OF: fdt: Ignoring memory range 0x40000000 - 0x42000000
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x0000000042000000-0x000000005fffffff]
[ 0.000000] HighMem empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000042000000-0x000000005fffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000042000000-0x000000005fffffff]
[ 0.000000] percpu: Embedded 15 pages/cpu s31180 r8192 d22068 u61440
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 121800
[ 0.000000] Kernel command line:
[ 0.000000] Bootloader command line not present
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes, linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 475424K/491520K available (7022K kernel code, 618K rwdata, 1028K rodata, 1024K init, 242K bss, 16096K reserved, 0K cma-reserved, 0K highmem)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] rcu: Hierarchical RCU implementation.
[ 0.000000] Tracing variant of Tasks RCU enabled.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000000] clocksource: dg_timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 305801671480 ns
[ 0.000008] sched_clock: 32 bits at 6MHz, resolution 160ns, wraps every 343597383600ns
[ 0.000024] Switching to timer-based delay loop, resolution 160ns
[ 0.000316] Calibrating delay loop (skipped), value calculated using timer frequency.. 12.50 BogoMIPS (lpj=62500)
[ 0.000343] pid_max: default: 32768 minimum: 301
[ 0.000504] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.000526] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.001498] CPU: Testing write buffer coherency: ok
[ 0.001814] qcom_scm: convention: smc legacy
[ 0.002880] Setting up static identity map for 0x42300000 - 0x42300060
[ 0.003066] rcu: Hierarchical SRCU implementation.
[ 0.003389] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build
[ 0.003651] smp: Bringing up secondary CPUs ...
[ 0.005659] smp: Brought up 1 node, 2 CPUs
[ 0.005678] SMP: Total of 2 processors activated (25.00 BogoMIPS).
[ 0.005691] CPU: All CPU(s) started in SVC mode.
[ 0.015009] VFP support v0.3: implementor 51 architecture 64 part 4d variant 2 rev 0
[ 0.015167] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.015199] futex hash table entries: 512 (order: 3, 32768 bytes, linear)
[ 0.015350] pinctrl core: initialized pinctrl subsystem
[ 0.017001] NET: Registered protocol family 16
[ 0.017332] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.018617] thermal_sys: Registered thermal governor 'step_wise'
[ 0.020544] cpuidle: using governor ladder
[ 0.020618] cpuidle: using governor menu
[ 0.065119] usbcore: registered new interface driver usbfs
[ 0.065202] usbcore: registered new interface driver hub
[ 0.065268] usbcore: registered new device driver usb
[ 0.065330] pps_core: LinuxPPS API ver. 1 registered
[ 0.065347] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.065390] PTP clock support registered
[ 0.067558] clocksource: Switched to clocksource dg_timer
[ 0.068640] NET: Registered protocol family 2
[ 0.068856] IP idents hash table entries: 8192 (order: 4, 65536 bytes, linear)
[ 0.069777] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[ 0.069838] TCP established hash table entries: 4096 (order: 2, 16384 bytes, linear)
[ 0.069883] TCP bind hash table entries: 4096 (order: 3, 32768 bytes, linear)
[ 0.069940] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.070039] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.070073] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
[ 0.070317] NET: Registered protocol family 1
[ 0.070372] PCI: CLS 0 bytes, default 64
[ 0.071514] workingset: timestamp_bits=14 max_order=17 bucket_order=3
[ 0.077303] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.077324] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[ 0.179872] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[ 0.181868] qcom-pcie 1b500000.pci: supply vdda not found, using dummy regulator
[ 0.182087] qcom-pcie 1b500000.pci: supply vdda_phy not found, using dummy regulator
[ 0.182190] qcom-pcie 1b500000.pci: supply vdda_refclk not found, using dummy regulator
[ 0.182455] qcom-pcie 1b500000.pci: host bridge /soc/pci@1b500000 ranges:
[ 0.182532] qcom-pcie 1b500000.pci: IO 0x000fe00000..0x000fe0ffff -> 0x000fe00000
[ 0.182574] qcom-pcie 1b500000.pci: MEM 0x0008000000..0x000fdfffff -> 0x0008000000
[ 0.402981] qcom-pcie 1b500000.pci: Link up
[ 0.403137] qcom-pcie 1b500000.pci: PCI host bridge to bus 0000:00
[ 0.403163] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 0.403186] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] (bus address [0xfe00000-0xfe0ffff])
[ 0.403206] pci_bus 0000:00: root bus resource [mem 0x08000000-0x0fdfffff]
[ 0.403281] pci 0000:00:00.0: [17cb:0101] type 01 class 0x060400
[ 0.403421] pci 0000:00:00.0: supports D1
[ 0.403439] pci 0000:00:00.0: PME# supported from D0 D1 D3hot
[ 0.406919] PCI: bus0: Fast back to back transfers disabled
[ 0.407392] pci 0000:01:00.0: [168c:0046] type 00 class 0x028000
[ 0.407686] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x001fffff 64bit]
[ 0.409166] pci 0000:01:00.0: PME# supported from D0 D3hot D3cold
[ 0.413075] PCI: bus1: Fast back to back transfers disabled
[ 0.413167] pci 0000:00:00.0: BAR 8: assigned [mem 0x08000000-0x081fffff]
[ 0.413194] pci 0000:01:00.0: BAR 0: assigned [mem 0x08000000-0x081fffff 64bit]
[ 0.413343] pci 0000:00:00.0: PCI bridge to [bus 01-ff]
[ 0.413368] pci 0000:00:00.0: bridge window [mem 0x08000000-0x081fffff]
[ 0.414325] pcieport 0000:00:00.0: AER: enabled with IRQ 43
[ 0.415249] qcom-pcie 1b700000.pci: supply vdda not found, using dummy regulator
[ 0.415469] qcom-pcie 1b700000.pci: supply vdda_phy not found, using dummy regulator
[ 0.415576] qcom-pcie 1b700000.pci: supply vdda_refclk not found, using dummy regulator
[ 0.415822] qcom-pcie 1b700000.pci: host bridge /soc/pci@1b700000 ranges:
[ 0.415894] qcom-pcie 1b700000.pci: IO 0x0031e00000..0x0031e0ffff -> 0x0031e00000
[ 0.415933] qcom-pcie 1b700000.pci: MEM 0x002e000000..0x0031dfffff -> 0x002e000000
[ 0.644934] qcom-pcie 1b700000.pci: Link up
[ 0.645078] qcom-pcie 1b700000.pci: PCI host bridge to bus 0001:00
[ 0.645103] pci_bus 0001:00: root bus resource [bus 00-ff]
[ 0.645125] pci_bus 0001:00: root bus resource [io 0x10000-0x1ffff] (bus address [0x31e00000-0x31e0ffff])
[ 0.645144] pci_bus 0001:00: root bus resource [mem 0x2e000000-0x31dfffff]
[ 0.645213] pci 0001:00:00.0: [17cb:0101] type 01 class 0x060400
[ 0.645344] pci 0001:00:00.0: supports D1
[ 0.645362] pci 0001:00:00.0: PME# supported from D0 D1 D3hot
[ 0.648889] PCI: bus0: Fast back to back transfers disabled
[ 0.649360] pci 0001:01:00.0: [168c:0046] type 00 class 0x028000
[ 0.649652] pci 0001:01:00.0: reg 0x10: [mem 0x00000000-0x001fffff 64bit]
[ 0.651021] pci 0001:01:00.0: PME# supported from D0 D3hot D3cold
[ 0.654908] PCI: bus1: Fast back to back transfers disabled
[ 0.654991] pci 0001:00:00.0: BAR 8: assigned [mem 0x2e000000-0x2e1fffff]
[ 0.655018] pci 0001:01:00.0: BAR 0: assigned [mem 0x2e000000-0x2e1fffff 64bit]
[ 0.655166] pci 0001:00:00.0: PCI bridge to [bus 01-ff]
[ 0.655189] pci 0001:00:00.0: bridge window [mem 0x2e000000-0x2e1fffff]
[ 0.656072] pcieport 0001:00:00.0: AER: enabled with IRQ 45
[ 0.659111] L2 @ QSB rate. Forcing new rate.
[ 0.659329] L2 @ 384000 KHz
[ 0.659519] CPU0 @ 800000 KHz
[ 0.659537] CPU1 @ QSB rate. Forcing new rate.
[ 0.659669] CPU1 @ 384000 KHz
[ 0.663724] gsbi 16300000.gsbi: GSBI port protocol: 6 crci: 0
[ 0.665709] gsbi 1a200000.gsbi: GSBI port protocol: 3 crci: 0
[ 0.667830] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[ 0.670299] msm_serial 16340000.serial: msm_serial: detected port #0
[ 0.670351] msm_serial 16340000.serial: uartclk = 7372800
[ 0.670421] 16340000.serial: ttyMSM0 at MMIO 0x16340000 (irq = 46, base_baud = 460800) is a MSM
[ 0.670461] msm_serial: console setup on port #0
[ 1.498517] printk: console [ttyMSM0] enabled
[ 1.503611] msm_serial: driver initialized
[ 1.512770] loop: module loaded
[ 1.514442] spi_qup 1a280000.spi: IN:block:16, fifo:64, OUT:block:16, fifo:64
[ 1.516459] spi-nor spi0.0: mx25u25635f (32768 Kbytes)
[ 1.522242] 16 fixed-partitions partitions found on MTD device spi0.0
[ 1.528349] Creating 16 MTD partitions on "spi0.0":
[ 1.533566] 0x000000000000-0x000000020000 : "SBL1"
[ 1.538938] 0x000000020000-0x000000030000 : "MIBIB"
[ 1.543673] 0x000000030000-0x000000050000 : "SBL2"
[ 1.548462] 0x000000050000-0x000000080000 : "SBL3"
[ 1.553264] 0x000000080000-0x000000090000 : "DDRCONFIG"
[ 1.558099] 0x000000090000-0x0000000a0000 : "SSD"
[ 1.563143] 0x0000000a0000-0x0000000d0000 : "TZ"
[ 1.568110] 0x0000000d0000-0x0000000f0000 : "RPM"
[ 1.572695] 0x0000000f0000-0x0000001b0000 : "APPSBL"
[ 1.577318] 0x0000001b0000-0x0000001c0000 : "APPSBLENV"
[ 1.582471] 0x0000001c0000-0x0000001d0000 : "EEPROM"
[ 1.587340] 0x0000001d0000-0x0000001e0000 : "bootselect"
[ 1.592569] 0x0000001e0000-0x000001050000 : "firmware"
[ 1.603152] no rootfs found after FIT image in "firmware"
[ 1.603198] 0x000001050000-0x000001ec0000 : "kernel1"
[ 1.608305] 0x000001ec0000-0x000001fc0000 : "debug"
[ 1.613251] 0x000001fc0000-0x000002000000 : "cfg"
[ 1.639050] ipq806x-gmac-dwmac 37200000.ethernet: IRQ eth_wake_irq not found
[ 1.639096] ipq806x-gmac-dwmac 37200000.ethernet: IRQ eth_lpi not found
[ 1.645367] ipq806x-gmac-dwmac 37200000.ethernet: PTP uses main clock
[ 1.652299] ipq806x-gmac-dwmac 37200000.ethernet: User ID: 0x10, Synopsys ID: 0x37
[ 1.658232] ipq806x-gmac-dwmac 37200000.ethernet: DWMAC1000
[ 1.665575] ipq806x-gmac-dwmac 37200000.ethernet: DMA HW capability register supported
[ 1.671491] ipq806x-gmac-dwmac 37200000.ethernet: RX Checksum Offload Engine supported
[ 1.679196] ipq806x-gmac-dwmac 37200000.ethernet: COE Type 2
[ 1.687015] ipq806x-gmac-dwmac 37200000.ethernet: TX Checksum insertion supported
[ 1.692906] ipq806x-gmac-dwmac 37200000.ethernet: Wake-Up On Lan supported
[ 1.700280] ipq806x-gmac-dwmac 37200000.ethernet: Enhanced/Alternate descriptors
[ 1.706981] ipq806x-gmac-dwmac 37200000.ethernet: Enabled extended descriptors
[ 1.714618] ipq806x-gmac-dwmac 37200000.ethernet: Ring mode enabled
[ 1.721648] ipq806x-gmac-dwmac 37200000.ethernet: Enable RX Mitigation via HW Watchdog Timer
[ 1.766962] ipq806x-gmac-dwmac 37400000.ethernet: IRQ eth_wake_irq not found
[ 1.767008] ipq806x-gmac-dwmac 37400000.ethernet: IRQ eth_lpi not found
[ 1.773395] ipq806x-gmac-dwmac 37400000.ethernet: PTP uses main clock
[ 1.780052] ipq806x-gmac-dwmac 37400000.ethernet: User ID: 0x10, Synopsys ID: 0x37
[ 1.786028] ipq806x-gmac-dwmac 37400000.ethernet: DWMAC1000
[ 1.793626] ipq806x-gmac-dwmac 37400000.ethernet: DMA HW capability register supported
[ 1.799373] ipq806x-gmac-dwmac 37400000.ethernet: RX Checksum Offload Engine supported
[ 1.807031] ipq806x-gmac-dwmac 37400000.ethernet: COE Type 2
[ 1.814993] ipq806x-gmac-dwmac 37400000.ethernet: TX Checksum insertion supported
[ 1.820845] ipq806x-gmac-dwmac 37400000.ethernet: Wake-Up On Lan supported
[ 1.828208] ipq806x-gmac-dwmac 37400000.ethernet: Enhanced/Alternate descriptors
[ 1.834895] ipq806x-gmac-dwmac 37400000.ethernet: Enabled extended descriptors
[ 1.842515] ipq806x-gmac-dwmac 37400000.ethernet: Ring mode enabled
[ 1.849544] ipq806x-gmac-dwmac 37400000.ethernet: Enable RX Mitigation via HW Watchdog Timer
[ 1.894633] i2c /dev entries driver
[ 1.898926] sdhci: Secure Digital Host Controller Interface driver
[ 1.898960] sdhci: Copyright(c) Pierre Ossman
[ 1.903999] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.910929] NET: Registered protocol family 10
[ 1.915608] Segment Routing with IPv6
[ 1.918650] NET: Registered protocol family 17
[ 1.922223] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 1.927081] 8021q: 802.1Q VLAN Support v1.8
[ 1.939732] Registering SWP/SWPB emulation handler
[ 1.968028] qcom_rpm 108000.rpm: RPM firmware 3.0.16777381
[ 1.981989] s1a: Bringing 0uV into 1050000-1050000uV
[ 1.982272] s1a: supplied by regulator-dummy
[ 1.986157] s1b: Bringing 0uV into 1050000-1050000uV
[ 1.990586] s1b: supplied by regulator-dummy
[ 1.995351] s2a: Bringing 0uV into 800000-800000uV
[ 1.999776] s2a: supplied by regulator-dummy
[ 2.004225] s2b: Bringing 0uV into 800000-800000uV
[ 2.008814] s2b: supplied by regulator-dummy
[ 2.017928] thermal thermal_zone0: failed to read out thermal zone (-110)
[ 2.031705] /dev/root: Can't open blockdev
[ 2.031729] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6
[ 2.034687] Please append a correct "root=" boot option; here are the available partitions:
[ 2.042335] 1f00 128 mtdblock0
[ 2.042340] (driver?)
[ 2.054564] 1f01 64 mtdblock1
[ 2.054568] (driver?)
[ 2.061126] 1f02 128 mtdblock2
[ 2.061130] (driver?)
[ 2.067583] 1f03 192 mtdblock3
[ 2.067588] (driver?)
[ 2.074095] 1f04 64 mtdblock4
[ 2.074100] (driver?)
[ 2.080655] 1f05 64 mtdblock5
[ 2.080660] (driver?)
[ 2.087114] 1f06 192 mtdblock6
[ 2.087119] (driver?)
[ 2.093625] 1f07 128 mtdblock7
[ 2.093630] (driver?)
[ 2.100208] 1f08 768 mtdblock8
[ 2.100213] (driver?)
[ 2.106645] 1f09 64 mtdblock9
[ 2.106649] (driver?)
[ 2.113156] 1f0a 64 mtdblock10
[ 2.113161] (driver?)
[ 2.120077] 1f0b 64 mtdblock11
[ 2.120081] (driver?)
[ 2.126611] 1f0c 14784 mtdblock12
[ 2.126615] (driver?)
[ 2.133210] 1f0d 14784 mtdblock13
[ 2.133215] (driver?)
[ 2.139852] 1f0e 1024 mtdblock14
[ 2.139857] (driver?)
[ 2.146402] 1f0f 256 mtdblock15
[ 2.146407] (driver?)
[ 2.153000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[ 2.155190] CPU1: stopping
[ 2.163431] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.10.176 #0
[ 2.166117] Hardware name: Generic DT based system
[ 2.172290] Function entered at [<c030e3cc>] from [<c030a15c>]
[ 2.176974] Function entered at [<c030a15c>] from [<c0635ba8>]
[ 2.182788] Function entered at [<c0635ba8>] from [<c030d0f0>]
[ 2.188604] Function entered at [<c030d0f0>] from [<c030d150>]
[ 2.194419] Function entered at [<c030d150>] from [<c03719a0>]
[ 2.200236] Function entered at [<c03719a0>] from [<c064ef08>]
[ 2.206051] Function entered at [<c064ef08>] from [<c0300b8c>]
[ 2.211866] Exception stack(0xc106df58 to 0xc106dfa0)
[ 2.217689] df40: 00000a42 00000000
[ 2.222836] df60: 00000a44 c0314bc0 c106c000 00000001 c0d04f18 c0d04f58 00000000 00000000
[ 2.230995] df80: 00000000 c0c48028 c0d04fd0 c106dfa8 c0307510 c0307514 60000013 ffffffff
[ 2.239130] Function entered at [<c0300b8c>] from [<c0307514>]
[ 2.247284] Function entered at [<c0307514>] from [<c034e8c8>]
[ 2.253013] Function entered at [<c034e8c8>] from [<c034ebe4>]
[ 2.258829] Function entered at [<c034ebe4>] from [<423015ac>]
[ 2.264649] Rebooting in 1 seconds..
U-Boot 2012.07 [UniFi,v1.0.15.274] (Dec 05 2021 - 16:33:43)
I'm totally at a dead end. Any clues?