Kernel hangs on Imx8m

Giacomo_ — Tue, 27 Apr 2021 12:42:58 GMT

Hello (again) support team,
we have developed a proprietary board derived from the NXP evaboard imx8mqevk.
The DDR memory format has changed to 2GB.

The kernel boots but hangs. Someone could give me some tips?

Yocto version is Zeus (imx-5.4.24-2.1.0)
the machine is "fsl-image-machine-test"
the distro is "fsl-imx-wayland"
The boot output:

----------------------------------------------------------------------------------------------------------------------------------------

Starting kernel ...

[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[ 0.000000] Linux version 5.4.24-2.1.0+gbabac008e5cf (oe-user@oe-host) (gcc version 9.2.0 (GCC)) #1 SMP PREEMPT Tue Apr 27 09:07:05 UTC 2021
[ 0.000000] Machine model: NXP i.MX8MQ EVK
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: UEFI not found.
[ 0.000000] Reserved memory: created CMA memory pool at 0x0000000044000000, size 960 MiB
[ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[ 0.000000] NUMA: No NUMA configuration found
[ 0.000000] NUMA: Faking a node at [mem 0x0000000040000000-0x00000000bfffffff]
[ 0.000000] NUMA: NODE_DATA [mem 0xbfbd0500-0xbfbd1fff]
[ 0.000000] Zone ranges:
[ 0.000000] DMA32 [mem 0x0000000040000000-0x00000000bfffffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000040000000-0x00000000b7ffffff]
[ 0.000000] node 0: [mem 0x00000000b8400000-0x00000000bfffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff]
[ 0.000000] psci: probing for conduit method from DT.
[ 0.000000] psci: PSCIv1.1 detected in firmware.
[ 0.000000] psci: Using standard PSCI v0.2 function IDs
[ 0.000000] psci: MIGRATE_INFO_TYPE not supported.
[ 0.000000] psci: SMC Calling Convention v1.1
[ 0.000000] percpu: Embedded 24 pages/cpu s58904 r8192 d31208 u98304
[ 0.000000] Detected VIPT I-cache on CPU0
[ 0.000000] CPU features: detected: ARM erratum 845719
[ 0.000000] CPU features: detected: GIC system register CPU interface
[ 0.000000] Speculative Store Bypass Disable mitigation not required
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 515072
[ 0.000000] Policy zone: DMA32
[ 0.000000] Kernel command line: console=ttymxc0,115200 root=/dev/mmcblk0p2 rootwait rw
[ 0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 1041244K/2093056K available (16444K kernel code, 1444K rwdata, 6472K rodata, 2944K init, 1017K bss, 68772K reserved, 983040K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=2.
[ 0.000000] Tasks RCU enabled.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[ 0.000000] GICv3: GIC: Using split EOI/Deactivate mode
[ 0.000000] GICv3: 128 SPIs implemented
[ 0.000000] GICv3: 0 Extended SPIs implemented
[ 0.000000] GICv3: Distributor has no Range Selector support
[ 0.000000] GICv3: 16 PPIs implemented
[ 0.000000] GICv3: no VLPI support, no direct LPI support
[ 0.000000] GICv3: CPU0: found redistributor 0 region 0:0x0000000038880000
[ 0.000000] ITS: No ITS available, not enabling LPIs
[ 0.000000] random: get_random_bytes called from start_kernel+0x2b8/0x44c with crng_init=0
[ 0.000000] arch_timer: cp15 timer(s) running at 8.33MHz (phys).
[ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x1ec0311ec, max_idle_ns: 440795202152 ns
[ 0.000004] sched_clock: 56 bits at 8MHz, resolution 120ns, wraps every 2199023255541ns
[ 0.000475] Console: colour dummy device 80x25
[ 0.000545] Calibrating delay loop (skipped), value calculated using timer frequency.. 16.66 BogoMIPS (lpj=33333)
[ 0.000554] pid_max: default: 32768 minimum: 301
[ 0.000631] LSM: Security Framework initializing
[ 0.000693] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[ 0.000709] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[ 0.023996] ASID allocator initialised with 32768 entries
[ 0.031993] rcu: Hierarchical SRCU implementation.
[ 0.040898] EFI services will not be available.
[ 0.048027] smp: Bringing up secondary CPUs ...
[ 0.080169] Detected VIPT I-cache on CPU1
[ 0.080196] GICv3: CPU1: found redistributor 1 region 0:0x00000000388a0000
[ 0.080219] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[ 0.080301] smp: Brought up 1 node, 2 CPUs
[ 0.080313] SMP: Total of 2 processors activated.
[ 0.080321] CPU features: detected: 32-bit EL0 Support
[ 0.080327] CPU features: detected: CRC32 instructions
[ 0.088949] CPU: All CPU(s) started at EL2
[ 0.088968] alternatives: patching kernel code
[ 0.090521] devtmpfs: initialized
[ 0.097384] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.097400] futex hash table entries: 512 (order: 3, 32768 bytes, linear)
[ 0.125727] pinctrl core: initialized pinctrl subsystem
[ 0.126522] DMI not present or invalid.
[ 0.126804] NET: Registered protocol family 16
[ 0.135261] DMA: preallocated 256 KiB pool for atomic allocations
[ 0.135274] audit: initializing netlink subsys (disabled)
[ 0.135437] audit: type=2000 audit(0.132:1): state=initialized audit_enabled=0 res=1
[ 0.136301] cpuidle: using governor menu
[ 0.136801] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[ 0.137690] Serial: AMBA PL011 UART driver
[ 0.137763] imx mu driver is registered.
[ 0.137791] imx rpmsg driver is registered.
[ 0.142003] imx8mq-pinctrl 30330000.iomuxc: initialized IMX pinctrl driver
[ 0.169037] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[ 0.169047] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages
[ 0.169056] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[ 0.169064] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages
[ 0.170926] cryptd: max_cpu_qlen set to 1000
[ 0.176983] ACPI: Interpreter disabled.
[ 0.177872] iommu: Default domain type: Translated
[ 0.178012] vgaarb: loaded
[ 0.178318] SCSI subsystem initialized
[ 0.178663] usbcore: registered new interface driver usbfs
[ 0.178706] usbcore: registered new interface driver hub
[ 0.178757] usbcore: registered new device driver usb
[ 0.179840] mc: Linux media interface: v0.10
[ 0.179872] videodev: Linux video capture interface: v2.00
[ 0.179953] pps_core: LinuxPPS API ver. 1 registered
[ 0.179961] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.179976] PTP clock support registered
[ 0.180124] EDAC MC: Ver: 3.0.0
[ 0.180947] No BMan portals available!
[ 0.181205] QMan: Allocated lookup table at (____ptrval____), entry count 65537
[ 0.181512] No QMan portals available!
[ 0.181975] No USDPAA memory, no 'fsl,usdpaa-mem' in device-tree
[ 0.182362] FPGA manager framework
[ 0.182456] Advanced Linux Sound Architecture Driver Initialized.
[ 0.182870] Bluetooth: Core ver 2.22
[ 0.182901] NET: Registered protocol family 31
[ 0.182907] Bluetooth: HCI device and connection manager initialized
[ 0.182917] Bluetooth: HCI socket layer initialized
[ 0.182925] Bluetooth: L2CAP socket layer initialized
[ 0.182944] Bluetooth: SCO socket layer initialized
[ 0.183653] clocksource: Switched to clocksource arch_sys_counter
[ 0.183789] VFS: Disk quotas dquot_6.6.0
[ 0.183841] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 0.184000] pnp: PnP ACPI: disabled
[ 0.190727] thermal_sys: Registered thermal governor 'step_wise'
[ 0.190730] thermal_sys: Registered thermal governor 'power_allocator'
[ 0.190863] OF: /thermal-zones/cpu-thermal/cooling-maps/map0: could not find phandle
[ 0.190875] thermal_sys: failed to build thermal zone cpu-thermal: -22
[ 0.190990] NET: Registered protocol family 2
[ 0.191313] tcp_listen_portaddr_hash hash table entries: 1024 (order: 2, 16384 bytes, linear)
[ 0.191351] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear)
[ 0.191484] TCP bind hash table entries: 16384 (order: 6, 262144 bytes, linear)
[ 0.191747] TCP: Hash tables configured (established 16384 bind 16384)
[ 0.191827] UDP hash table entries: 1024 (order: 3, 32768 bytes, linear)
[ 0.191880] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes, linear)
[ 0.192022] NET: Registered protocol family 1
[ 0.192419] RPC: Registered named UNIX socket transport module.
[ 0.192424] RPC: Registered udp transport module.
[ 0.192430] RPC: Registered tcp transport module.
[ 0.192437] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.192797] PCI: CLS 0 bytes, default 64
[ 0.193423] hw perfevents: enabled with armv8_cortex_a53 PMU driver, 7 counters available
[ 0.193801] kvm [1]: IPA Size Limit: 40bits
[ 0.194981] kvm [1]: vgic-v2@31020000
[ 0.195002] kvm [1]: GIC system register CPU interface enabled
[ 0.195042] kvm [1]: vgic interrupt IRQ1
[ 0.195129] kvm [1]: Hyp mode initialized successfully
[ 0.200915] Initialise system trusted keyrings
[ 0.201012] workingset: timestamp_bits=44 max_order=19 bucket_order=0
[ 0.207812] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.208462] NFS: Registering the id_resolver key type
[ 0.208482] Key type id_resolver registered
[ 0.208487] Key type id_legacy registered
[ 0.208500] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 0.208526] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[ 0.208930] 9p: Installing v9fs 9p2000 file system support
[ 0.224517] Key type asymmetric registered
[ 0.224524] Asymmetric key parser 'x509' registered
[ 0.224558] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 244)
[ 0.224565] io scheduler mq-deadline registered
[ 0.224572] io scheduler kyber registered
[ 0.229820] EINJ: ACPI disabled.
[ 0.238157] imx-sdma 302c0000.sdma: Direct firmware load for imx/sdma/sdma-imx7d.bin failed with error -2
[ 0.238172] imx-sdma 302c0000.sdma: Falling back to sysfs fallback for: imx/sdma/sdma-imx7d.bin
[ 0.243359] mxs-dma 33000000.dma-apbh: initialized
[ 0.247213] Bus freq driver module loaded
[ 0.252043] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 0.254172] 30860000.serial: ttymxc0 at MMIO 0x30860000 (irq = 34, base_baud = 1562500) is a IMX
[ 1.192474] printk: console [ttymxc0] enabled
[ 1.197351] 30880000.serial: ttymxc2 at MMIO 0x30880000 (irq = 35, base_baud = 5000000) is a IMX
[ 1.215231] imx-dcss 32e00000.display-controller: ctxld: can't get irq number
[ 1.222455] imx-dcss 32e00000.display-controller: submodules initialization failed
[ 1.230058] imx-dcss 32e00000.display-controller: master bind failed: -517
[ 1.246819] loop: module loaded
[ 1.252318] imx ahci driver is registered.
[ 1.259221] spi-nor spi3.0: unrecognized JEDEC id bytes: 00 00 00 00 00 00
[ 1.266124] spi-nor: probe of spi3.0 failed with error -2
[ 1.273295] libphy: Fixed MDIO Bus: probed
[ 1.278278] tun: Universal TUN/TAP device driver, 1.6
[ 1.284116] thunder_xcv, ver 1.0
[ 1.287386] thunder_bgx, ver 1.0
[ 1.290662] nicpf, ver 1.0
[ 1.294134] pps pps0: new PPS source ptp0
[ 1.303696] Freescale FM module, FMD API version 21.1.0
[ 1.309220] Freescale FM Ports module
[ 1.312894] fsl_mac: fsl_mac: FSL FMan MAC API based driver
[ 1.318643] fsl_dpa: FSL DPAA Ethernet driver
[ 1.323128] fsl_advanced: FSL DPAA Advanced drivers:
[ 1.328101] fsl_proxy: FSL DPAA Proxy initialization driver
[ 1.333793] fsl_oh: FSL FMan Offline Parsing port driver
[ 1.340113] hclge is initializing
[ 1.343431] hns3: Hisilicon Ethernet Network Driver for Hip08 Family - version
[ 1.350665] hns3: Copyright (c) 2017 Huawei Corporation.
[ 1.356036] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
[ 1.363095] e1000: Copyright (c) 1999-2006 Intel Corporation.
[ 1.368892] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[ 1.374730] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 1.380694] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.6.0-k
[ 1.387663] igb: Copyright (c) 2007-2014 Intel Corporation.
[ 1.393282] igbvf: Intel(R) Gigabit Virtual Function Network Driver - version 2.4.0-k
[ 1.401121] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
[ 1.407213] sky2: driver version 1.30
[ 1.411925] VFIO - User Level meta-driver version: 0.3
[ 1.419629] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.426177] ehci-pci: EHCI PCI platform driver
[ 1.430667] ehci-platform: EHCI generic platform driver
[ 1.436090] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 1.442289] ohci-pci: OHCI PCI platform driver
[ 1.446772] ohci-platform: OHCI generic platform driver
[ 1.452615] usbcore: registered new interface driver usb-storage
[ 1.458698] usbcore: registered new interface driver usbserial_generic
[ 1.465251] usbserial: USB Serial support registered for generic
[ 1.471295] usbcore: registered new interface driver ftdi_sio
[ 1.477069] usbserial: USB Serial support registered for FTDI USB Serial Device
[ 1.484415] usbcore: registered new interface driver usb_serial_simple
[ 1.490967] usbserial: USB Serial support registered for carelink
[ 1.497084] usbserial: USB Serial support registered for zio
[ 1.502769] usbserial: USB Serial support registered for funsoft
[ 1.508800] usbserial: USB Serial support registered for flashloader
[ 1.515178] usbserial: USB Serial support registered for google
[ 1.521123] usbserial: USB Serial support registered for libtransistor
[ 1.527674] usbserial: USB Serial support registered for vivopay
[ 1.533713] usbserial: USB Serial support registered for moto_modem
[ 1.540015] usbserial: USB Serial support registered for motorola_tetra
[ 1.546655] usbserial: USB Serial support registered for novatel_gps
[ 1.553038] usbserial: USB Serial support registered for hp4x
[ 1.558814] usbserial: USB Serial support registered for suunto
[ 1.564761] usbserial: USB Serial support registered for siemens_mpi
[ 1.574006] input: 30370000.snvs:snvs-powerkey as /devices/platform/soc@0/soc@0:bus@30000000/30370000.snvs/30370000.snvs:snvs-powerkey/input/input0
[ 1.589229] snvs_rtc 30370000.snvs:snvs-rtc-lp: registered as rtc0
[ 1.595519] i2c /dev entries driver
[ 1.599655] mxc-mipi-csi2_yav 30a70000.mipi_csi1: mipi_csi2_probe
[ 1.605806] mxc-mipi-csi2_yav 30a70000.mipi_csi: Remote device at endpoint@0 XXX found
[ 1.613746] mxc-mipi-csi2_yav 30a70000.mipi_csi1: lanes: 2, name: mxc-mipi-csi2.0
[ 1.621449] mxc-mipi-csi2_yav 30b60000.mipi_csi2: mipi_csi2_probe
[ 1.627597] mxc-mipi-csi2_yav 30b60000.mipi_csi: Remote device at endpoint@0 XXX found
[ 1.635531] mxc-mipi-csi2_yav 30b60000.mipi_csi2: lanes: 2, name: mxc-mipi-csi2.1
[ 1.643248] mx6s-csi 30a90000.csi1_bridge: initialising
[ 1.648683] CSI: Registered sensor subdevice: mxc-mipi-csi2.0
[ 1.654510] mx6s-csi 30b80000.csi2_bridge: initialising
[ 1.659924] CSI: Registered sensor subdevice: mxc-mipi-csi2.1
[ 1.667234] qoriq_thermal 30260000.tmu: Failed to register sensors
[ 1.674194] imx2-wdt 30280000.watchdog: timeout 60 sec (nowayout=0)
[ 1.680773] Bluetooth: HCI UART driver ver 2.3
[ 1.685234] Bluetooth: HCI UART protocol H4 registered
[ 1.690381] Bluetooth: HCI UART protocol BCSP registered
[ 1.695726] Bluetooth: HCI UART protocol LL registered
[ 1.700876] Bluetooth: HCI UART protocol ATH3K registered
[ 1.706308] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 1.712671] Bluetooth: HCI UART protocol Broadcom registered
[ 1.718358] Bluetooth: HCI UART protocol QCA registered
[ 1.725708] sdhci: Secure Digital Host Controller Interface driver
[ 1.731901] sdhci: Copyright(c) Pierre Ossman
[ 1.736469] Synopsys Designware Multimedia Card Interface Driver
[ 1.743151] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.751936] ledtrig-cpu: registered to indicate activity on CPUs
[ 1.759224] caam 30900000.crypto: device ID = 0x0a16040100000000 (Era 9)
[ 1.765938] caam 30900000.crypto: job rings = 3, qi = 0
[ 1.789089] caam algorithms registered in /proc/crypto
[ 1.796250] caam 30900000.crypto: caam pkc algorithms registered in /proc/crypto
[ 1.806121] caam_jr 30901000.jr: registering rng-caam
[ 1.820404] caam-snvs 30370000.caam-snvs: can't get snvs clock
[ 1.826337] caam-snvs 30370000.caam-snvs: violation handlers armed - non-secure state
[ 1.834869] usbcore: registered new interface driver usbhid
[ 1.840452] usbhid: USB HID core driver
[ 1.845763] No fsl,qman node
[ 1.848665] Freescale USDPAA process driver
[ 1.852858] fsl-usdpaa: no region found
[ 1.856707] Freescale USDPAA process IRQ driver
[ 1.869409] wm8524-codec audio-codec: Failed to get mute line: -517
[ 1.948082] imx-spdif sound-spdif: snd-soc-dummy-dai <-> 30810000.spdif mapping ok
[ 1.955683] imx-spdif sound-spdif: ASoC: no DMI vendor name!
[ 1.966670] imx-spdif sound-hdmi-arc: snd-soc-dummy-dai <-> 308a0000.spdif mapping ok
[ 1.974530] imx-spdif sound-hdmi-arc: ASoC: no DMI vendor name!
[ 1.983552] imx-ak4458 sound-ak4458: ASoC: failed to init link ak4458: -517
[ 1.990542] imx-ak4458 sound-ak4458: snd_soc_register_card failed (-517)
[ 1.997507] imx-ak5558 sound-ak5558: ASoC: failed to init link ak5558: -517
[ 2.004483] imx-ak5558 sound-ak5558: snd_soc_register_card failed (-517)
[ 2.011849] imx-cdnhdmi sound-hdmi: ASoC: failed to init link imx8 hdmi: -517
[ 2.018999] imx-cdnhdmi sound-hdmi: snd_soc_register_card failed (-517)
[ 2.025861] pktgen: Packet Generator for packet performance testing. Version: 2.75
[ 2.035836] NET: Registered protocol family 26
[ 2.040936] NET: Registered protocol family 10
[ 2.046524] Segment Routing with IPv6
[ 2.050262] NET: Registered protocol family 17
[ 2.054800] Bluetooth: RFCOMM TTY layer initialized
[ 2.059696] Bluetooth: RFCOMM socket layer initialized
[ 2.064863] Bluetooth: RFCOMM ver 1.11
[ 2.068630] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 2.073949] Bluetooth: BNEP filters: protocol multicast
[ 2.079187] Bluetooth: BNEP socket layer initialized
[ 2.084159] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 2.090089] Bluetooth: HIDP socket layer initialized
[ 2.095100] 8021q: 802.1Q VLAN Support v1.8
[ 2.099307] lib80211: common routines for IEEE802.11 drivers
[ 2.105083] 9pnet: Installing 9P2000 support
[ 2.109388] tsn generic netlink module v1 init...
[ 2.114162] Key type dns_resolver registered
[ 2.119879] registered taskstats version 1
[ 2.123990] Loading compiled-in X.509 certificates
[ 2.150260] GPIO line 157 (wl-reg-on) hogged as output/high
[ 2.160319] ov5640_mipi 0-003c: No sensor reset pin available
[ 2.166114] ov5640_mipi 0-003c: 0-003c supply DOVDD not found, using dummy regulator
[ 2.173932] ov5640_mipi 0-003c: 0-003c supply DVDD not found, using dummy regulator
[ 2.181639] ov5640_mipi 0-003c: 0-003c supply AVDD not found, using dummy regulator
[ 2.201537] ov5640_mipi 0-003c: Read reg error: reg=300a
[ 2.206872] ov5640_mipi 0-003c: Camera is not found
[ 2.217436] pfuze100-regulator 0-0008: Full layer: 2, Metal layer: 1
[ 2.225523] pfuze100-regulator 0-0008: FAB: 0, FIN: 0
[ 2.230606] pfuze100-regulator 0-0008: pfuze100 found.
[ 2.311805] i2c i2c-0: IMX I2C adapter registered
[ 2.317348] ov5640_mipi 1-003c: No sensor reset pin available
[ 2.323152] ov5640_mipi 1-003c: 1-003c supply DOVDD not found, using dummy regulator
[ 2.330962] ov5640_mipi 1-003c: 1-003c supply DVDD not found, using dummy regulator
[ 2.338685] ov5640_mipi 1-003c: 1-003c supply AVDD not found, using dummy regulator
[ 2.356175] ov5640_mipi 1-003c: Read reg error: reg=300a
[ 2.361509] ov5640_mipi 1-003c: Camera is not found
[ 2.366559] i2c i2c-1: IMX I2C adapter registered
[ 2.372607] ak4458 2-0010: 2-0010 supply DVDD not found, using dummy regulator
[ 2.379897] ak4458 2-0010: 2-0010 supply AVDD not found, using dummy regulator
[ 2.388133] ak4458 2-0012: 2-0012 supply DVDD not found, using dummy regulator
[ 2.395427] ak4458 2-0012: 2-0012 supply AVDD not found, using dummy regulator
[ 2.403580] ak5558 2-0013: 2-0013 supply DVDD not found, using dummy regulator
[ 2.410864] ak5558 2-0013: 2-0013 supply AVDD not found, using dummy regulator
[ 2.418981] ak4458 2-0011: 2-0011 supply DVDD not found, using dummy regulator
[ 2.426282] ak4458 2-0011: 2-0011 supply AVDD not found, using dummy regulator
[ 2.434134] i2c i2c-2: IMX I2C adapter registered
[ 2.439362] imx8mq-usb-phy 381f0040.usb-phy: 381f0040.usb-phy supply vbus not found, using dummy regulator
[ 2.449343] imx8mq-usb-phy 382f0040.usb-phy: 382f0040.usb-phy supply vbus not found, using dummy regulator
[ 2.461568] imx6q-pcie 33c00000.pcie: couldn't get pcie-phy
[ 2.467310] imx6q-pcie 33c00000.pcie: 33c00000.pcie supply epdev_on not found, using dummy regulator
[ 2.473160] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 2.476764] imx6q-pcie 33c00000.pcie: host bridge /soc@0/pcie@33c00000 ranges:
[ 2.483075] [drm] No driver support for vblank timestamp query.
[ 2.483660] cdns-mhdp-imx 32c00000.hdmi: lane-mapping 0xe4
[ 2.490319] imx6q-pcie 33c00000.pcie: No bus range found for /soc@0/pcie@33c00000, using [bus 00-ff]
[ 2.498185] imx-dcss 32e00000.display-controller: bound 32c00000.hdmi (ops cdns_mhdp_imx_ops)
[ 2.501761] imx6q-pcie 33c00000.pcie: IO 0x27f80000..0x27f8ffff -> 0x00000000
[ 2.511353] [drm] Initialized imx-dcss 1.0.0 20190917 for 32e00000.display-controller on minor 0
[ 2.519603] imx6q-pcie 33c00000.pcie: MEM 0x20000000..0x27efffff -> 0x20000000
[ 2.652183] imx6q-pcie 33c00000.pcie: PCIe PLL locked after 0 us.

topic Re: Kernel hangs on Imx8m in i.MX Processors

Kernel hangs on Imx8m

Re: Kernel hangs on Imx8m