Re: Want to use linux-fslc 5.10 with Dunfell


Andrey Zhizhikin
 

Hello Fabio,

On Thu, Mar 4, 2021 at 12:19 PM Andrey Zhizhikin <andrey.z@gmail.com> wrote:

Hello Fabio,

On Thu, Mar 4, 2021 at 12:09 PM Fabio Estevam <festevam@gmail.com> wrote:

Hi Peter,

On Thu, Mar 4, 2021 at 7:48 AM Peter Bergin <peter@berginkonsult.se> wrote:

thanks for the good work! I've tried to boot this on a imx8mn-ddr4-evk
and see some issues with u-boot environment. I had to tweak the
environment in order to get this to boot from SD card.

Variable - default -> changed to:
mmcdev - 0 -> 1
image - Image.itb -> Image
boot_fit - try -> false
Thanks for testing.

I have addressed the issues you reported:
https://lists.denx.de/pipermail/u-boot/2021-March/443133.html
Thanks for the patch, I'll give it a try and submit PR against
u-boot-fslc once I test it.
I've applied the patch locally to my build, and imx8mn-ddr4-evk boots
without errors or additional interactions to the command prompt. See
the boot log at the end of the mail.

I can submit it as a PR against u-boot-fslc repository, or you prefer
to do it yourself?

I guess there is no need to wait for it applied upstream, since it is
quite a straightforward fix that is needed.



Cheers

PS: Apologies for mistyping your name in my previous reply! :)

--
Regards,
Andrey.

====
U-Boot SPL 2020.10+fslc+g5003fc093c (Dec 09 2020 - 17:09:55 +0000)
Normal Boot
WDT: Started with servicing (60s timeout)
Trying to boot from BOOTROM
image offset 0x8000, pagesize 0x200, ivt offset 0x0
NOTICE: BL31: v2.2(release):rel_imx_5.4.70_2.3.0-0-gf1d7187f2
NOTICE: BL31: Built : 09:58:42, Dec 1 2020


U-Boot 2020.10+fslc+g5003fc093c (Dec 09 2020 - 17:09:55 +0000)

CPU: Freescale i.MX8MNano Quad rev1.0 at 1200 MHz
Reset cause: POR
Model: NXP i.MX8MNano DDR4 EVK board
DRAM: 2 GiB
WDT: Started with servicing (60s timeout)
MMC: FSL_SDHC: 1, FSL_SDHC: 2
Loading Environment from MMC... Run CMD11 1.8V switch
*** Warning - bad CRC, using default environment

In: serial
Out: serial
Err: serial
Net: No ethernet found.
Hit any key to stop autoboot: 0
Run CMD11 1.8V switch
switch to partitions #0, OK
mmc1 is current device
Run CMD11 1.8V switch
Failed to load 'boot.scr'
31568384 bytes read in 384 ms (78.4 MiB/s)
Booting from mmc ...
23443 bytes read in 13 ms (1.7 MiB/s)
Moving Image from 0x40480000 to 0x40600000, end=424b0000
## Flattened Device Tree blob at 43000000
Booting using the fdt blob at 0x43000000
Loading Device Tree to 000000004fff7000, end 000000004ffffb92 ... OK

Starting kernel ...

[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[ 0.000000] Linux version 5.10.18+ge96f454f9d4b (oe-user@oe-host)
(aarch64-poky-linux-gcc (GCC) 10.2.0, GNU ld (GNU Binutils)
2.36.1.20210209) #1 SMP PREEMPT Tue Feb 23 21:32:29 UTC 2021
[ 0.000000] Machine model: NXP i.MX8MNano DDR4 EVK board
[ 0.000000] efi: UEFI not found.
[ 0.000000] cma: Reserved 32 MiB at 0x00000000be000000
[ 0.000000] NUMA: No NUMA configuration found
[ 0.000000] NUMA: Faking a node at [mem
0x0000000040000000-0x00000000bfffffff]
[ 0.000000] NUMA: NODE_DATA [mem 0xbdbe1b00-0xbdbe3fff]
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000040000000-0x000000007fffffff]
[ 0.000000] DMA32 [mem 0x0000000080000000-0x00000000bfffffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000040000000-0x00000000bfffffff]
[ 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 23 pages/cpu s56280 r8192 d29736 u94208
[ 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] Built 1 zonelists, mobility grouping on. Total pages: 516096
[ 0.000000] Policy zone: DMA32
[ 0.000000] Kernel command line: console=ttymxc1,115200
root=/dev/mmcblk1p2 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] software IO TLB: mapped [mem
0x000000007bfff000-0x000000007ffff000] (64MB)
[ 0.000000] Memory: 1926588K/2097152K available (14464K kernel
code, 2796K rwdata, 7540K rodata, 5888K init, 518K bss, 137796K
reserved, 32768K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] rcu: RCU event tracing is enabled.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=4.
[ 0.000000] Trampoline variant of 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=4
[ 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: 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+0x330/0x4f4 with crng_init=0
[ 0.000000] arch_timer: cp15 timer(s) running at 8.00MHz (phys).
[ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff
max_cycles: 0x1d854df40, max_idle_ns: 440795202120 ns
[ 0.000004] sched_clock: 56 bits at 8MHz, resolution 125ns, wraps
every 2199023255500ns
[ 0.000612] Console: colour dummy device 80x25
[ 0.000685] Calibrating delay loop (skipped), value calculated
using timer frequency.. 16.00 BogoMIPS (lpj=32000)
[ 0.000698] pid_max: default: 32768 minimum: 301
[ 0.000765] LSM: Security Framework initializing
[ 0.000824] Mount-cache hash table entries: 4096 (order: 3, 32768
bytes, linear)
[ 0.000842] Mountpoint-cache hash table entries: 4096 (order: 3,
32768 bytes, linear)
[ 0.002088] rcu: Hierarchical SRCU implementation.
[ 0.003490] EFI services will not be available.
[ 0.003663] smp: Bringing up secondary CPUs ...
[ 0.004049] Detected VIPT I-cache on CPU1
[ 0.004077] GICv3: CPU1: found redistributor 1 region 0:0x00000000388a0000
[ 0.004118] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[ 0.004523] Detected VIPT I-cache on CPU2
[ 0.004541] GICv3: CPU2: found redistributor 2 region 0:0x00000000388c0000
[ 0.004564] CPU2: Booted secondary processor 0x0000000002 [0x410fd034]
[ 0.004934] Detected VIPT I-cache on CPU3
[ 0.004950] GICv3: CPU3: found redistributor 3 region 0:0x00000000388e0000
[ 0.004973] CPU3: Booted secondary processor 0x0000000003 [0x410fd034]
[ 0.005029] smp: Brought up 1 node, 4 CPUs
[ 0.005052] SMP: Total of 4 processors activated.
[ 0.005059] CPU features: detected: 32-bit EL0 Support
[ 0.005066] CPU features: detected: CRC32 instructions
[ 0.005073] CPU features: detected: 32-bit EL1 Support
[ 0.012278] CPU: All CPU(s) started at EL2
[ 0.012300] alternatives: patching kernel code
[ 0.013652] devtmpfs: initialized
[ 0.017067] KASLR disabled due to lack of seed
[ 0.017289] clocksource: jiffies: mask: 0xffffffff max_cycles:
0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.017305] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[ 0.018338] pinctrl core: initialized pinctrl subsystem
[ 0.019342] DMI not present or invalid.
[ 0.019784] NET: Registered protocol family 16
[ 0.021259] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations
[ 0.021311] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for
atomic allocations
[ 0.021426] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for
atomic allocations
[ 0.021496] audit: initializing netlink subsys (disabled)
[ 0.021629] audit: type=2000 audit(0.020:1): state=initialized
audit_enabled=0 res=1
[ 0.022505] thermal_sys: Registered thermal governor 'step_wise'
[ 0.022509] thermal_sys: Registered thermal governor 'power_allocator'
[ 0.022682] cpuidle: using governor menu
[ 0.022850] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[ 0.022927] ASID allocator initialised with 65536 entries
[ 0.024145] Serial: AMBA PL011 UART driver
[ 0.041645] debugfs: Directory 'dummy-iomuxc-gpr@30340000' with
parent 'regmap' already present!
[ 0.041830] imx8mn-pinctrl 30330000.pinctrl: initialized IMX pinctrl driver
[ 0.052970] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[ 0.052983] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages
[ 0.052989] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[ 0.052996] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages
[ 0.053895] cryptd: max_cpu_qlen set to 1000
[ 0.056109] ACPI: Interpreter disabled.
[ 0.057564] iommu: Default domain type: Translated
[ 0.057749] vgaarb: loaded
[ 0.058026] SCSI subsystem initialized
[ 0.058325] usbcore: registered new interface driver usbfs
[ 0.058362] usbcore: registered new interface driver hub
[ 0.058390] usbcore: registered new device driver usb
[ 0.059321] pps_core: LinuxPPS API ver. 1 registered
[ 0.059328] pps_core: Software ver. 5.3.6 - Copyright 2005-2007
Rodolfo Giometti <giometti@linux.it>
[ 0.059344] PTP clock support registered
[ 0.059447] EDAC MC: Ver: 3.0.0
[ 0.060554] FPGA manager framework
[ 0.060630] Advanced Linux Sound Architecture Driver Initialized.
[ 0.061273] clocksource: Switched to clocksource arch_sys_counter
[ 0.061426] VFS: Disk quotas dquot_6.6.0
[ 0.061473] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 0.061644] pnp: PnP ACPI: disabled
[ 0.066690] NET: Registered protocol family 2
[ 0.067067] tcp_listen_portaddr_hash hash table entries: 1024
(order: 2, 16384 bytes, linear)
[ 0.067129] TCP established hash table entries: 16384 (order: 5,
131072 bytes, linear)
[ 0.067243] TCP bind hash table entries: 16384 (order: 6, 262144
bytes, linear)
[ 0.067480] TCP: Hash tables configured (established 16384 bind 16384)
[ 0.067584] UDP hash table entries: 1024 (order: 3, 32768 bytes, linear)
[ 0.067628] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes, linear)
[ 0.067767] NET: Registered protocol family 1
[ 0.068079] RPC: Registered named UNIX socket transport module.
[ 0.068085] RPC: Registered udp transport module.
[ 0.068091] RPC: Registered tcp transport module.
[ 0.068096] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.068107] PCI: CLS 0 bytes, default 64
[ 0.068832] kvm [1]: IPA Size Limit: 40 bits
[ 0.070122] kvm [1]: GICv3: no GICV resource entry
[ 0.070130] kvm [1]: disabling GICv2 emulation
[ 0.070148] kvm [1]: GIC system register CPU interface enabled
[ 0.070226] kvm [1]: vgic interrupt IRQ9
[ 0.070324] kvm [1]: Hyp mode initialized successfully
[ 0.073099] Initialise system trusted keyrings
[ 0.073215] workingset: timestamp_bits=42 max_order=19 bucket_order=0
[ 0.078624] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.079194] NFS: Registering the id_resolver key type
[ 0.079217] Key type id_resolver registered
[ 0.079222] Key type id_legacy registered
[ 0.079296] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 0.079434] 9p: Installing v9fs 9p2000 file system support
[ 0.115831] Key type asymmetric registered
[ 0.115839] Asymmetric key parser 'x509' registered
[ 0.115869] Block layer SCSI generic (bsg) driver version 0.4
loaded (major 245)
[ 0.115879] io scheduler mq-deadline registered
[ 0.115885] io scheduler kyber registered
[ 0.124640] EINJ: ACPI disabled.
[ 0.132983] imx-sdma 302b0000.dma-controller: Direct firmware load
for imx/sdma/sdma-imx7d.bin failed with error -2
[ 0.132998] imx-sdma 302b0000.dma-controller: Falling back to sysfs
fallback for: imx/sdma/sdma-imx7d.bin
[ 0.137956] SoC: i.MX8MN revision 1.0
[ 0.141497] debugfs: Directory 'dummy-reset-controller@30390000'
with parent 'regmap' already present!
[ 0.144593] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 0.146724] SuperH (H)SCI(F) driver initialized
[ 0.147221] 30890000.serial: ttymxc1 at MMIO 0x30890000 (irq = 32,
base_baud = 1500000) is a IMX
[ 1.066589] printk: console [ttymxc1] enabled
[ 1.071601] msm_serial: driver initialized
[ 1.083119] loop: module loaded
[ 1.087075] megasas: 07.714.04.00-rc1
[ 1.094700] libphy: Fixed MDIO Bus: probed
[ 1.099830] tun: Universal TUN/TAP device driver, 1.6
[ 1.105585] thunder_xcv, ver 1.0
[ 1.108842] thunder_bgx, ver 1.0
[ 1.112105] nicpf, ver 1.0
[ 1.115567] pps pps0: new PPS source ptp0
[ 1.120360] fec 30be0000.ethernet: Invalid MAC address: 00:00:00:00:00:00
[ 1.127167] fec 30be0000.ethernet: Using random MAC address:
9a:70:df:87:45:f9
[ 1.135522] libphy: fec_enet_mii_bus: probed
[ 1.139876] mdio_bus 30be0000.ethernet-1: MDIO device at address 0
is missing.
[ 1.147580] fec 30be0000.ethernet eth0: registered PHC device 0
[ 1.154697] hclge is initializing
[ 1.158041] hns3: Hisilicon Ethernet Network Driver for Hip08
Family - version
[ 1.165294] hns3: Copyright (c) 2017 Huawei Corporation.
[ 1.170646] e1000: Intel(R) PRO/1000 Network Driver
[ 1.175543] e1000: Copyright (c) 1999-2006 Intel Corporation.
[ 1.181327] e1000e: Intel(R) PRO/1000 Network Driver
[ 1.186297] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 1.192258] igb: Intel(R) Gigabit Ethernet Network Driver
[ 1.197663] igb: Copyright (c) 2007-2014 Intel Corporation.
[ 1.203264] igbvf: Intel(R) Gigabit Virtual Function Network Driver
[ 1.209536] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
[ 1.215737] sky2: driver version 1.30
[ 1.220345] VFIO - User Level meta-driver version: 0.3
[ 1.227022] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.233569] ehci-pci: EHCI PCI platform driver
[ 1.238050] ehci-platform: EHCI generic platform driver
[ 1.243391] ehci-orion: EHCI orion driver
[ 1.247489] ehci-exynos: EHCI Exynos driver
[ 1.251746] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 1.257952] ohci-pci: OHCI PCI platform driver
[ 1.262429] ohci-platform: OHCI generic platform driver
[ 1.267751] ohci-exynos: OHCI Exynos driver
[ 1.272394] usbcore: registered new interface driver usb-storage
[ 1.280824] i2c /dev entries driver
[ 1.290256] sdhci: Secure Digital Host Controller Interface driver
[ 1.296504] sdhci: Copyright(c) Pierre Ossman
[ 1.301332] Synopsys Designware Multimedia Card Interface Driver
[ 1.308172] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.315878] ledtrig-cpu: registered to indicate activity on CPUs
[ 1.323082] usbcore: registered new interface driver usbhid
[ 1.328672] usbhid: USB HID core driver
[ 1.337392] NET: Registered protocol family 17
[ 1.341985] 9pnet: Installing 9P2000 support
[ 1.345880] mmc2: SDHCI controller on 30b60000.mmc [30b60000.mmc] using ADMA
[ 1.346322] Key type dns_resolver registered
[ 1.357836] registered taskstats version 1
[ 1.361945] Loading compiled-in X.509 certificates
[ 1.385931] usb_phy_generic usbphynop1: supply vcc not found, using
dummy regulator
[ 1.469795] ldo6: supplied by buck5
[ 1.473495] i2c i2c-0: IMX I2C adapter registered
[ 1.479703] i2c i2c-1: IMX I2C adapter registered
[ 1.485718] pca953x 2-0020: supply vcc not found, using dummy regulator
[ 1.492452] pca953x 2-0020: using no AI
[ 1.498592] i2c i2c-2: IMX I2C adapter registered
[ 1.504685] imx_usb 32e40000.usb: No over current polarity defined
[ 1.511028] mmc2: new HS400 MMC card at address 0001
[ 1.516927] mmcblk2: mmc2:0001 DG4016 14.7 GiB
[ 1.518766] sdhci-esdhc-imx 30b50000.mmc: Got CD GPIO
[ 1.521475] input: bd718xx-pwrkey as
/devices/platform/soc@0/30800000.bus/30a20000.i2c/i2c-0/0-004b/gpio-keys.0.auto/input/input0
[ 1.521750] mmcblk2boot0: mmc2:0001 DG4016 partition 1 4.00 MiB
[ 1.522512] ALSA device list:
[ 1.522517] No soundcards found.
[ 1.550766] mmcblk2boot1: mmc2:0001 DG4016 partition 2 4.00 MiB
[ 1.550884] mmcblk2rpmb: mmc2:0001 DG4016 partition 3 4.00 MiB,
chardev (234:0)
[ 1.564866] mmc1: SDHCI controller on 30b50000.mmc [30b50000.mmc] using ADMA
[ 1.568283] Alternate GPT is invalid, using primary GPT.
[ 1.577304] mmcblk2: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13 p14 p15
[ 1.589824] Waiting for root device /dev/mmcblk1p2...
[ 1.664806] random: fast init done
[ 1.674128] mmc1: host does not support reading read-only switch,
assuming write-enable
[ 1.718167] mmc1: new ultra high speed SDR104 SDHC card at address 0007
[ 1.725851] mmcblk1: mmc1:0007 SD32G 29.9 GiB
[ 1.732479] mmcblk1: p1 p2
[ 2.488397] EXT4-fs (mmcblk1p2): mounted filesystem with ordered
data mode. Opts: (null)
[ 2.496557] VFS: Mounted root (ext4 filesystem) on device 179:98.
[ 2.503774] devtmpfs: mounted
[ 2.509738] Freeing unused kernel memory: 5888K
[ 2.514392] Run /sbin/init as init process
INIT: version 2.98 booting
Framebuffer /dev/fb0 not detected
Boot splashscreen disabled
Starting udev
[ 2.760338] udevd[162]: starting version 3.2.10
[ 2.778257] random: udevd: uninitialized urandom read (16 bytes read)
[ 2.785192] random: udevd: uninitialized urandom read (16 bytes read)
[ 2.792171] random: udevd: uninitialized urandom read (16 bytes read)
[ 2.817766] udevd[163]: starting eudev-3.2.10
[ 2.874676] imx-cpufreq-dt imx-cpufreq-dt: cpu speed grade 8 mkt
segment 0 supported-hw 0x100 0x1
[ 2.897944] imx-sdma 302b0000.dma-controller: loaded firmware 4.5
[ 2.904197] imx-sdma 302c0000.dma-controller: loaded firmware 4.5
[ 2.910456] imx-sdma 30bd0000.dma-controller: loaded firmware 4.5
[ 2.919245] input: 30370000.snvs:snvs-powerkey as
/devices/platform/soc@0/30000000.bus/30370000.snvs/30370000.snvs:snvs-powerkey/input/input1
[ 2.937768] snvs_rtc 30370000.snvs:snvs-rtc-lp: registered as rtc0
[ 2.944154] snvs_rtc 30370000.snvs:snvs-rtc-lp: setting system
clock to 1970-01-01T00:00:00 UTC (0)
[ 2.955077] bd718xx-clk bd71847-clk.1.auto: No parent clk found
[ 2.964447] bd718xx-clk: probe of bd71847-clk.1.auto failed with error -22
[ 2.976128] caam 30900000.crypto: Entropy delay = 3200
[ 2.994398] caam 30900000.crypto: Instantiated RNG4 SH0
[ 3.006539] caam 30900000.crypto: Instantiated RNG4 SH1
[ 3.011853] caam 30900000.crypto: device ID = 0x0a16040100000100 (Era 9)
[ 3.018606] caam 30900000.crypto: job rings = 3, qi = 0
[ 3.136541] caam algorithms registered in /proc/crypto
[ 3.142452] caam 30900000.crypto: caam pkc algorithms registered in
/proc/crypto
[ 3.149871] caam 30900000.crypto: registering rng-caam
[ 3.188379] EXT4-fs (mmcblk1p2): re-mounted. Opts: (null)
[ 3.193887] random: crng init done
[ 3.197317] random: 4 urandom warning(s) missed due to ratelimiting
[ 4.495676] fec 30be0000.ethernet eth0: Unable to connect to phy
[ 4.668823] cfg80211: Loading compiled-in X.509 certificates for
regulatory database
[ 4.683148] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 4.844337] NET: Registered protocol family 10
[ 4.850163] Segment Routing with IPv6
[ 4.948004] Bluetooth: Core ver 2.22
[ 4.951732] NET: Registered protocol family 31
[ 4.956234] Bluetooth: HCI device and connection manager initialized
[ 4.962641] Bluetooth: HCI socket layer initialized
[ 4.967605] Bluetooth: L2CAP socket layer initialized
[ 4.967638] Bluetooth: SCO socket layer initialized
[ 5.050299] nfc: nfc_init: NFC Core ver 0.1
[ 5.054643] NET: Registered protocol family 39

Poky (Yocto Project Reference Distro)
3.2+snapshot-ed7151f9856791fc4a24b1a0a88f87c442b29f38 imx8mn-ddr4-evk
/dev/ttymxc1

imx8mn-ddr4-evk login:
====
--
Regards,
Andrey.

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