uuu failed at UTP: Waiting for /dev/utp to appear when downloading the example_kernel_emmc.uuu

[imx8-mdt]

Hi experts,

I use the uuu to download image to imx8mm evk board.

If I use : uuu -b emmc_all  uboot.bin  image  to download the whole image , it will succeed. So I think it means the hardware environment is no problem.

But if I use uuu  example_kernel_emmc.uuu to download the kernel/dtb/rootfs, it is always stuck at UTP: Waiting for /dev/utp to appear .

From my understanding, in this step, it has downloaded the kernel_image and fsl-image-mfgtool-initramfs-imx_mfgtools.cpio.gz.u-boot into the DDR RAM. then boot the kernel_image.

But fails to recognize the new usb device.

my fsl-image-mfgtool-initramfs-imx_mfgtools.cpio.gz.u-boot is copied from NXP's demo image-LF_v5.10_2.0.0_images_IMX8MMEVK.

and my kernel is built from rel_imx_5.4.24_2.1.0.tar.bz2, use the  imx_v8_defconfig.

in this config , the usb related config are enabled :

CONFIG_USB_LIBCOMPOSITE=y
CONFIG_USB_F_MASS_STORAGE=y
CONFIG_USB_F_FS=y
CONFIG_USB_CONFIGFS=y
CONFIG_USB_CONFIGFS_MASS_STORAGE=y
CONFIG_USB_CONFIGFS_F_FS=y

my uuu version is uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.4.149-0-gab2f4c7

. as the uuu FBK   supports the two Vid/Pid.

FBK: 0x066f 0x9afe
FBK: 0x066f 0x9bff

I grep 066f in the linux code  ,can't find any usb vid defined to 066f.

Does the uuu support to download sperate kernel/rootfs to imx8mm?

What should I do to address this problem?

Anyone can suggest on this is appreciated. 

[Babu_P]

Actually my device currently flashed uboot 2020.04 and Linux kernel 5.4.70 , Zeus version, Im trying to upgraded to krikstone u-boot is 2024.04 and Linux version 5.15.71 , Here Kernel Load address was changed from provious kernel to new kernel 0x40800000 to 0x40400000, im facing IVT vector table not found, some times CSF header not found

later i changed kernel load addr to 0x40400000 (Linux version 5.15.71) in uboot 2024.04, now im able to boot it log attached below

Now im not able to flash root filesystem. please help me.

C:\Users\Documents\6-27-24\Modified_DIR_4_Boot\July-1>uuu.exe -V my_flash.uuu
uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.5.182-0-gda3cd53

Build in config:
Pctl Chip Vid Pid BcdVersion Serial_No
==================================================
SDPS: MX8QXP 0x1fc9 0x012f [0x0002..0xffff]
SDPS: MX8QM 0x1fc9 0x0129 [0x0002..0xffff]
SDPS: MX8DXL 0x1fc9 0x0147
SDPS: MX28 0x15a2 0x004f
SDPS: MX815 0x1fc9 0x013e
SDPS: MX865 0x1fc9 0x0146
SDPS: MX8ULP 0x1fc9 0x014a
SDPS: MX8ULP 0x1fc9 0x014b
SDPS: MX93 0x1fc9 0x014e
SDPS: MX91 0x1fc9 0x0159
SDPS: MX95 0x1fc9 0x015d
SDPS: MX95 0x1fc9 0x015c
SDP: MX7D 0x15a2 0x0076
SDP: MX6Q 0x15a2 0x0054
SDP: MX6D 0x15a2 0x0061
SDP: MX6SL 0x15a2 0x0063
SDP: MX6SX 0x15a2 0x0071
SDP: MX6UL 0x15a2 0x007d
SDP: MX6ULL 0x15a2 0x0080
SDP: MX6SLL 0x1fc9 0x0128
SDP: MX7ULP 0x1fc9 0x0126
SDP: MXRT106X 0x1fc9 0x0135
SDP: MX8MM 0x1fc9 0x0134
SDP: MX8MQ 0x1fc9 0x012b
SDPU: SPL 0x0525 0xb4a4 [0x0000..0x04ff]
SDPV: SPL1 0x0525 0xb4a4 [0x0500..0x9998]
SDPV: SPL1 0x1fc9 0x0151 [0x0500..0x9998]
SDPU: SPL 0x0525 0xb4a4 [0x9999..0x9999]
SDPU: SPL 0x3016 0x1001 [0x0000..0x04ff]
SDPV: SPL1 0x3016 0x1001 [0x0500..0x9998]
FBK: 0x066f 0x9afe
FBK: 0x066f 0x9bff
FBK: 0x1fc9 0x0153
FB: 0x0525 0xa4a5
FB: 0x18d1 0x0d02
FB: 0x3016 0x0001
FB: 0x1fc9 0x0152
FB: 0x0483 0x0afb
Wait for Known USB Device Appear...
New USB Device Attached at 2:44-052C0A09DAB504F2
2:44-052C0A09DAB504F2>Start Cmd:FB: ucmd setenv fastboot_dev mmc
2:44-052C0A09DAB504F2>Okay (0.004s)
2:44-052C0A09DAB504F2>Start Cmd:FB: ucmd setenv mmcdev ${emmc_dev}
2:44-052C0A09DAB504F2>Okay (0.004s)
2:44-052C0A09DAB504F2>Start Cmd:FB: ucmd printenv mmcdev
2:44-052C0A09DAB504F2>Okay (0.005s)
2:44-052C0A09DAB504F2>Start Cmd:FB: flash bootloader flash_signed.bin
0x400000002:44-052C0A09DAB504F2>Okay (0.134s)
2:44-052C0A09DAB504F2>Start Cmd:FB: ucmd if env exists emmc_ack; then ; else setenv emmc_ack 0; fi;
2:44-052C0A09DAB504F2>Okay (0.004s)
2:44-052C0A09DAB504F2>Start Cmd:FB: ucmd setenv emmc_cmd mmc partconf ${emmc_dev} ${emmc_ack} 1 0
2:44-052C0A09DAB504F2>Okay (0.004s)
2:44-052C0A09DAB504F2>Start Cmd:FB: ucmd if test "${emmc_skip_fb}" != "yes"; then run emmc_cmd; fi
2:44-052C0A09DAB504F2>Okay (0.005s)
2:44-052C0A09DAB504F2>Start Cmd:FB: ucmd setenv fastboot_buffer ${loadaddr}
2:44-052C0A09DAB504F2>Okay (0.005s)
2:44-052C0A09DAB504F2>Start Cmd:FB: download -f Image_signed.bin
2:44-052C0A09DAB504F2>Okay (0.607s)
2:44-052C0A09DAB504F2>Start Cmd:FB: ucmd setenv fastboot_buffer ${fdt_addr}
2:44-052C0A09DAB504F2>Okay (0.005s)
2:44-052C0A09DAB504F2>Start Cmd:FB: download -f imx8mm.dtb
2:44-052C0A09DAB504F2>Okay (0.019s)
2:44-052C0A09DAB504F2>Start Cmd:FB: ucmd setenv fastboot_buffer ${initrd_addr}
2:44-052C0A09DAB504F2>Okay (0.004s)
2:44-052C0A09DAB504F2>Start Cmd:FB: download -f fsl-image-mfgtool-initramfs-imx_mfgtools.cpio.zst.u-boot
2:44-052C0A09DAB504F2>Okay (0.32s)
2:44-052C0A09DAB504F2>Start Cmd:FB: acmd ${kboot} ${loadaddr} ${initrd_addr} ${fdt_addr}
2:44-052C0A09DAB504F2>Okay (0.001s)

####################################################################################################

U-Boot SPL 2022.04-01.00.000+g181859317bf (Nov 15 2022 - 06:28:05 +0000)
DDRINFO: start DRAM init
DDRINFO: DRAM rate 3000MTS
DDRINFO:ddrphy calibration done
DDRINFO: ddrmix config done
SEC0: RNG instantiated
Normal Boot
Trying to boot from USB SDP
SDP: initialize...
SDP: handle requests...
Downloading file of size 1758400 to 0x40480000... done
Jumping to header at 0x40480000
Header Tag is not an IMX image
Found header at 0x404a73a0

Authenticate image from DDR location 0x401fcdc0...

U-Boot 2022.04-01.00.000+g181859317bf (Nov 15 2022 - 06:28:05 +0000)

CPU: i.MX8MMDL rev1.0 1600 MHz (running at 1200 MHz)
CPU: Industrial temperature grade (-40C to 105C) at 51C
Reset cause: POR
Model: NXP i.MX8MM board
DRAM: 2 GiB
fec setup done
Core: 79 devices, 25 uclasses, devicetree: separate
MMC: FSL_SDHC: 1, FSL_SDHC: 2
Loading Environment from MMC... *** Warning - bad CRC, using default environment

In: serial
Out: serial
Err: serial
SEC0: RNG instantiated

BuildInfo:
- ATF f4540f9

Detect USB boot. Will enter fastboot mode!
Net: eth0: ethernet@30be0000
Fastboot: Normal
Boot from USB for mfgtools
*** Warning - Use default environment for mfgtools
, using default environment

Run bootcmd_mfg: run mfgtool_args;if iminfo ${initrd_addr}; then if test ${tee} = yes; then bootm ${tee_addr} ${initrd_addr} ${fdt_addr}; else booti ${loadaddr} ${initrd_addr} ${fdt_addr}; fi; else echo "Run fastboot ..."; fastboot 0; fi;
Hit any key to stop autoboot: 0

## Checking Image at 43800000 ...
Unknown image format!
Run fastboot ...
Detect USB boot. Will enter fastboot mode!
flash target is MMC:2
Detect USB boot. Will enter fastboot mode!
mmcdev=2
Detect USB boot. Will enter fastboot mode!
Starting download of 1957152 bytes
..............
downloading of 1957152 bytes finished
writing to partition 'bootloader'
Initializing 'bootloader'
switch to partitions #1, OK
mmc2(part 1) is current device
Writing 'bootloader'

MMC write: dev # 2, block # 66, count 3823 ... 3823 blocks written: OK
Writing 'bootloader' DONE!
mmc - MMC sub system

Usage:
mmc info - display info of the current MMC device
mmc read addr blk# cnt
mmc write addr blk# cnt
mmc erase blk# cnt
mmc rescan [mode]
mmc part - lists available partition on current mmc device
mmc dev [dev] [part] [mode] - show or set current mmc device [partition] and set mode
- the required speed mode is passed as the index from the following list
[MMC_LEGACY, MMC_HS, SD_HS, MMC_HS_52, MMC_DDR_52, UHS_SDR12, UHS_SDR25,
UHS_SDR50, UHS_DDR50, UHS_SDR104, MMC_HS_200, MMC_HS_400, MMC_HS_400_ES]
mmc list - lists available devices
mmc wp - power on write protect boot partitions
mmc hwpartition <USER> <GP> <MODE> - does hardware partitioning
arguments (sizes in 512-byte blocks):
USER - <user> <enh> <start> <cnt> <wrrel> <{on|off}>
: sets user data area attributes
GP - <{gp1|gp2|gp3|gp4}> <cnt> <enh> <wrrel> <{on|off}>
: general purpose partition
MODE - <{check|set|complete}>
: mode, complete set partitioning completed
WARNING: Partitioning is a write-once setting once it is set to complete.
Power cycling is required to initialize partitions after set to complete.
mmc bootbus <dev> <boot_bus_width> <reset_boot_bus_width> <boot_mode>
- Set the BOOT_BUS_WIDTH field of the specified device
mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>
- Change sizes of boot and RPMB partitions of specified device
mmc partconf <dev> [[varname] | [<boot_ack> <boot_partition> <partition_access>]]
- Show or change the bits of the PARTITION_CONFIG field of the specified device
If showing the bits, optionally store the boot_partition field into varname
mmc rst-function <dev> <value>
- Change the RST_n_FUNCTION field of the specified device
WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.
mmc rpmb read addr blk# cnt [address of auth-key] - block size is 256 bytes
mmc rpmb write addr blk# cnt <address of auth-key> - block size is 256 bytes
mmc rpmb key <address of auth-key> - program the RPMB authentication key.
mmc rpmb counter - read the value of the write counter
mmc setdsr <value> - set DSR register value

Detect USB boot. Will enter fastboot mode!
Detect USB boot. Will enter fastboot mode!
mmcdev=2
Detect USB boot. Will enter fastboot mode!
Starting download of 1957152 bytes
..............
downloading of 1957152 bytes finished
writing to partition 'bootloader'
Initializing 'bootloader'
switch to partitions #1, OK
mmc2(part 1) is current device
Writing 'bootloader'

MMC write: dev # 2, block # 66, count 3823 ... 3823 blocks written: OK
Writing 'bootloader' DONE!
Detect USB boot. Will enter fastboot mode!
Detect USB boot. Will enter fastboot mode!
Detect USB boot. Will enter fastboot mode!
Detect USB boot. Will enter fastboot mode!
reset_boot_bus_width 2 is invalid
Detect USB boot. Will enter fastboot mode!
Detect USB boot. Will enter fastboot mode!
mmcdev=2
Detect USB boot. Will enter fastboot mode!
Starting download of 1957152 bytes
..............
downloading of 1957152 bytes finished
writing to partition 'bootloader'
Initializing 'bootloader'
switch to partitions #1, OK
mmc2(part 1) is current device
Writing 'bootloader'

MMC write: dev # 2, block # 66, count 3823 ... 3823 blocks written: OK
Writing 'bootloader' DONE!
Detect USB boot. Will enter fastboot mode!
Detect USB boot. Will enter fastboot mode!
Detect USB boot. Will enter fastboot mode!
Detect USB boot. Will enter fastboot mode!
Starting download of 22810472 bytes
..........................................................................
..........................................................................
..........................
downloading of 22810472 bytes finished
Detect USB boot. Will enter fastboot mode!
Starting download of 46831 bytes

downloading of 46831 bytes finished
Detect USB boot. Will enter fastboot mode!
Starting download of 11572930 bytes
..........................................................................
..............
downloading of 11572930 bytes finished

Authenticate image from DDR location 0x40480000...

Secure boot enabled

HAB Configuration: 0xcc, HAB State: 0x99
No HAB Events Found!

Moving Image from 0x40480000 to 0x40600000, end=41bc0000
## Loading init Ramdisk from Legacy Image at 43800000 ...
Image Name: fsl-image-mfgtool-initramfs-imx8
Created: 2011-04-05 23:00:00 UTC
Image Type: AArch64 Linux RAMDisk Image (uncompressed)
Data Size: 11572866 Bytes = 11 MiB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
## Flattened Device Tree blob at 43000000
Booting using the fdt blob at 0x43000000
Using Device Tree in place at 0000000043000000, end 000000004300e6ee
Modify /vpu_g1@38300000:status disabled
Modify /vpu_g2@38310000:status disabled
Modify /vpu_h1@38320000:status disabled
Warning: /thermal-zones/cpu-thermal/cooling-maps/map0, cooling-device count 6
Update node /thermal-zones/cpu-thermal/cooling-maps/map0, cooling-device prop

Starting kernel ...

[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[ 0.000000] Linux version 5.15.71+geecd933bab1b (oe-user@oe-host) (aarch64-poky-linux-gcc (GCC) 11.3.0, GNU ld (GNU Binutils) 2.38.20220708) #1 SMP PREEMPT Tue Sep 12 22:17:59 UTC 2023
[ 0.000000] Machine model: FSL i.MX8MM board
[ 0.000000] efi: UEFI not found.
[ 0.000000] Reserved memory: created CMA memory pool at 0x0000000096000000, size 640 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 0x0000000040000000-0x00000000bdffffff]
[ 0.000000] NUMA: NODE_DATA [mem 0x95bce800-0x95bd0fff]
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000040000000-0x00000000bdffffff]
[ 0.000000] DMA32 empty
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000040000000-0x00000000bdffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bdffffff]
[ 0.000000] On node 0, zone DMA: 8192 pages in unavailable ranges
[ 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: Trusted OS migration not required
[ 0.000000] psci: SMC Calling Convention v1.2
[ 0.000000] percpu: Embedded 19 pages/cpu s37656 r8192 d31976 u77824
[ 0.000000] Detected VIPT I-cache on CPU0
[ 0.000000] CPU features: detected: GIC system register CPU interface
[ 0.000000] CPU features: detected: ARM erratum 845719
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 508032
[ 0.000000] Policy zone: DMA
[ 0.000000] Kernel command line: console=ttymxc0,115200,115200 rdinit=/linuxrc clk_ignore_unused
[ 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: 1335112K/2064384K available (12864K kernel code, 1312K rwdata, 5136K rodata, 2304K init, 494K bss, 73912K reserved, 655360K 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 event tracing is enabled.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=2.
[ 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=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] Root IRQ handler: gic_handle_irq
[ 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] 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
[ 0.000000] sched_clock: 56 bits at 8MHz, resolution 125ns, wraps every 2199023255500ns
[ 0.000394] Console: colour dummy device 80x25
[ 0.000463] Calibrating delay loop (skipped), value calculated using timer frequency.. 16.00 BogoMIPS (lpj=32000)
[ 0.000476] pid_max: default: 32768 minimum: 301
[ 0.000527] LSM: Security Framework initializing
[ 0.000606] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[ 0.000621] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, linear)
[ 0.001952] rcu: Hierarchical SRCU implementation.
[ 0.002849] EFI services will not be available.
[ 0.002974] smp: Bringing up secondary CPUs ...
[ 0.003415] Detected VIPT I-cache on CPU1
[ 0.003444] GICv3: CPU1: found redistributor 1 region 0:0x00000000388a0000
[ 0.003490] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[ 0.003584] smp: Brought up 1 node, 2 CPUs
[ 0.003599] SMP: Total of 2 processors activated.
[ 0.003606] CPU features: detected: 32-bit EL0 Support
[ 0.003612] CPU features: detected: CRC32 instructions
[ 0.009384] CPU: All CPU(s) started at EL2
[ 0.009404] alternatives: patching kernel code
[ 0.010483] devtmpfs: initialized
[ 0.016573] KASLR disabled due to lack of seed
[ 0.016740] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.016756] futex hash table entries: 512 (order: 3, 32768 bytes, linear)
[ 0.035408] pinctrl core: initialized pinctrl subsystem
[ 0.036001] DMI not present or invalid.
[ 0.036610] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[ 0.041457] DMA: preallocated 256 KiB GFP_KERNEL pool for atomic allocations
[ 0.041860] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[ 0.042228] DMA: preallocated 256 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[ 0.042835] thermal_sys: Registered thermal governor 'step_wise'
[ 0.042843] thermal_sys: Registered thermal governor 'power_allocator'
[ 0.043052] cpuidle: using governor menu
[ 0.043198] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[ 0.043267] ASID allocator initialised with 65536 entries
[ 0.044144] Serial: AMBA PL011 UART driver
[ 0.044202] imx mu driver is registered.
[ 0.044220] imx rpmsg driver is registered.
[ 0.054891] imx8mm-pinctrl 30330000.pinctrl: initialized IMX pinctrl driver
[ 0.063789] platform 32e10000.mipi_dsi: Fixing up cyclic dependency with 32e00000.lcdif
[ 0.064457] platform 32e30000.mipi_csi: Fixing up cyclic dependency with 32e20000.csi1_bridge
[ 0.078904] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[ 0.078925] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages
[ 0.078934] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[ 0.078941] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages
[ 0.080089] cryptd: max_cpu_qlen set to 1000
[ 0.082277] ACPI: Interpreter disabled.
[ 0.082978] iommu: Default domain type: Translated
[ 0.082987] iommu: DMA domain TLB invalidation policy: strict mode
[ 0.083297] usbcore: registered new interface driver usbfs
[ 0.083331] usbcore: registered new interface driver hub
[ 0.083355] usbcore: registered new device driver usb
[ 0.084137] pps_core: LinuxPPS API ver. 1 registered
[ 0.084144] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.084157] PTP clock support registered
[ 0.084341] EDAC MC: Ver: 3.0.0
[ 0.085278] FPGA manager framework
[ 0.085814] Bluetooth: Core ver 2.22
[ 0.085844] NET: Registered PF_BLUETOOTH protocol family
[ 0.085850] Bluetooth: HCI device and connection manager initialized
[ 0.085859] Bluetooth: HCI socket layer initialized
[ 0.085869] Bluetooth: L2CAP socket layer initialized
[ 0.085882] Bluetooth: SCO socket layer initialized
[ 0.086424] clocksource: Switched to clocksource arch_sys_counter
[ 0.086548] VFS: Disk quotas dquot_6.6.0
[ 0.086587] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 0.086728] pnp: PnP ACPI: disabled
[ 0.092372] NET: Registered PF_INET protocol family
[ 0.092527] IP idents hash table entries: 32768 (order: 6, 262144 bytes, linear)
[ 0.093633] tcp_listen_portaddr_hash hash table entries: 1024 (order: 2, 16384 bytes, linear)
[ 0.093666] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
[ 0.093679] TCP established hash table entries: 16384 (order: 5, 131072 bytes, linear)
[ 0.093789] TCP bind hash table entries: 16384 (order: 6, 262144 bytes, linear)
[ 0.094026] TCP: Hash tables configured (established 16384 bind 16384)
[ 0.094097] UDP hash table entries: 1024 (order: 3, 32768 bytes, linear)
[ 0.094144] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes, linear)
[ 0.094264] NET: Registered PF_UNIX/PF_LOCAL protocol family
[ 0.094530] Unpacking initramfs...
[ 0.094707] hw perfevents: enabled with armv8_cortex_a53 PMU driver, 7 counters available
[ 0.105633] Initialise system trusted keyrings
[ 0.105956] workingset: timestamp_bits=42 max_order=19 bucket_order=0
[ 0.111188] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.148094] Key type asymmetric registered
[ 0.148121] Asymmetric key parser 'x509' registered
[ 0.148217] io scheduler mq-deadline registered
[ 0.148225] io scheduler kyber registered
[ 0.152506] EINJ: ACPI disabled.
[ 0.161290] mxs-dma 33000000.dma-controller: initialized
[ 0.163161] SoC: i.MX8MM revision 1.0
[ 0.163758] Bus freq driver module loaded
[ 0.169676] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 0.172025] 30860000.serial: ttymxc0 at MMIO 0x30860000 (irq = 47, base_baud = 1500000) is a IMX
[ 0.714201] Freeing initrd memory: 11296K
[ 0.718441] printk: console [ttymxc0] enabled
[ 1.011416] 30880000.serial: ttymxc2 at MMIO 0x30880000 (irq = 48, base_baud = 5000000) is a IMX
[ 1.020674] 30890000.serial: ttymxc1 at MMIO 0x30890000 (irq = 49, base_baud = 5000000) is a IMX
[ 1.044513] loop: module loaded
[ 1.048777] of_reserved_mem_lookup() returned NULL
[ 1.057839] tun: Universal TUN/TAP device driver, 1.6
[ 1.065867] PPP generic driver version 2.4.2
[ 1.070362] VFIO - User Level meta-driver version: 0.3
[ 1.077309] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.083852] ehci-platform: EHCI generic platform driver
[ 1.089242] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 1.095444] ohci-platform: OHCI generic platform driver
[ 1.101244] usbcore: registered new interface driver usbserial_generic
[ 1.107794] usbserial: USB Serial support registered for generic
[ 1.113826] usbcore: registered new interface driver ftdi_sio
[ 1.119634] usbserial: USB Serial support registered for FTDI USB Serial Device
[ 1.126981] usbcore: registered new interface driver usb_serial_simple
[ 1.133529] usbserial: USB Serial support registered for carelink
[ 1.139646] usbserial: USB Serial support registered for zio
[ 1.145327] usbserial: USB Serial support registered for funsoft
[ 1.151351] usbserial: USB Serial support registered for flashloader
[ 1.157726] usbserial: USB Serial support registered for google
[ 1.163663] usbserial: USB Serial support registered for libtransistor
[ 1.170213] usbserial: USB Serial support registered for vivopay
[ 1.176239] usbserial: USB Serial support registered for moto_modem
[ 1.182528] usbserial: USB Serial support registered for motorola_tetra
[ 1.189168] usbserial: USB Serial support registered for nokia
[ 1.195022] usbserial: USB Serial support registered for novatel_gps
[ 1.201396] usbserial: USB Serial support registered for hp4x
[ 1.207163] usbserial: USB Serial support registered for suunto
[ 1.213104] usbserial: USB Serial support registered for siemens_mpi
[ 1.219487] usbcore: registered new interface driver usb_ehset_test
[ 1.228922] snvs_rtc 30370000.snvs:snvs-rtc-lp: registered as rtc0
[ 1.235153] snvs_rtc 30370000.snvs:snvs-rtc-lp: setting system clock to 1970-01-01T00:00:00 UTC (0)
[ 1.244317] i2c_dev: i2c /dev entries driver
[ 1.251602] Bluetooth: HCI UART driver ver 2.3
[ 1.256075] Bluetooth: HCI UART protocol H4 registered
[ 1.261227] Bluetooth: HCI UART protocol BCSP registered
[ 1.266564] Bluetooth: HCI UART protocol LL registered
[ 1.271709] Bluetooth: HCI UART protocol ATH3K registered
[ 1.277130] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 1.283487] Bluetooth: HCI UART protocol Broadcom registered
[ 1.289171] Bluetooth: HCI UART protocol QCA registered
[ 1.295671] sdhci: Secure Digital Host Controller Interface driver
[ 1.301873] sdhci: Copyright(c) Pierre Ossman
[ 1.306826] Synopsys Designware Multimedia Card Interface Driver
[ 1.313427] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.321382] ledtrig-cpu: registered to indicate activity on CPUs
[ 1.328321] SMCCC: SOC_ID: ARCH_SOC_ID not implemented, skipping ....
[ 1.334874] usbcore: registered new interface driver usbhid
[ 1.340457] usbhid: USB HID core driver
[ 1.346979] cs_system_cfg: CoreSight Configuration manager initialised
[ 1.354186] mmc2: SDHCI controller on 30b60000.mmc [30b60000.mmc] using ADMA
[ 1.354905] optee: probing for conduit method.
[ 1.365716] optee: revision 3.19 (00919403)
[ 1.365987] optee: dynamic shared memory is enabled
[ 1.375419] optee: initialized driver
[ 1.380364] galcore: clk_get vg clock failed, disable vg!
[ 1.386085] Galcore version 6.4.3.p4.398061
[ 1.445848] [drm] Initialized vivante 1.0.0 20170808 for 38000000.gpu on minor 0
[ 1.451097] mmc2: new HS400 MMC card at address 0001
[ 1.454135] NET: Registered PF_LLC protocol family
[ 1.462745] mmcblk2: mmc2:0001 S0J35A 3.57 GiB
[ 1.463524] NET: Registered PF_INET6 protocol family
[ 1.469794] mmcblk2: p1 p2 p3 p4 < p5 >
[ 1.473280] Segment Routing with IPv6
[ 1.477234] mmcblk2boot0: mmc2:0001 S0J35A 31.5 MiB
[ 1.480224] In-situ OAM (IOAM) with IPv6
[ 1.486009] mmcblk2boot1: mmc2:0001 S0J35A 31.5 MiB
[ 1.489116] NET: Registered PF_PACKET protocol family
[ 1.494814] mmcblk2rpmb: mmc2:0001 S0J35A 4.00 MiB, chardev (239:0)
[ 1.499308] Bluetooth: RFCOMM TTY layer initialized
[ 1.510262] Bluetooth: RFCOMM socket layer initialized
[ 1.515424] Bluetooth: RFCOMM ver 1.11
[ 1.519206] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 1.524528] Bluetooth: BNEP filters: protocol multicast
[ 1.529763] Bluetooth: BNEP socket layer initialized
[ 1.534735] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 1.540671] Bluetooth: HIDP socket layer initialized
[ 1.546310] 8021q: 802.1Q VLAN Support v1.8
[ 1.550618] 9pnet: Installing 9P2000 support
[ 1.554924] tsn generic netlink module v1 init...
[ 1.560497] Loading compiled-in X.509 certificates
[ 1.583816] usb_phy_generic usbphynop1: supply vcc not found, using dummy regulator
[ 1.591601] usb_phy_generic usbphynop1: dummy supplies not allowed for exclusive requests
[ 1.599908] usb_phy_generic usbphynop2: supply vcc not found, using dummy regulator
[ 1.607651] usb_phy_generic usbphynop2: dummy supplies not allowed for exclusive requests
[ 1.629262] nxp-pca9450 0-0025: pca9450a probed.
[ 1.633996] i2c i2c-0: IMX I2C adapter registered
[ 1.639909] i2c 1-003d: Fixing up cyclic dependency with 32e10000.mipi_dsi
[ 1.647148] adv7511 1-003d: supply avdd not found, using dummy regulator
[ 1.653958] adv7511 1-003d: supply dvdd not found, using dummy regulator
[ 1.660702] adv7511 1-003d: supply pvdd not found, using dummy regulator
[ 1.667450] adv7511 1-003d: supply a2vdd not found, using dummy regulator
[ 1.674280] adv7511 1-003d: supply v3p3 not found, using dummy regulator
[ 1.681018] adv7511 1-003d: supply v1p2 not found, using dummy regulator
[ 1.688518] adv7511 1-003d: Probe failed. Remote port 'mipi_dsi@32e10000' disabled
[ 1.696344] i2c 1-0050: Fixing up cyclic dependency with 32e40000.usb
[ 1.703119] i2c i2c-1: IMX I2C adapter registered
[ 1.709678] pca953x 2-0020: using no AI
[ 1.713873] pca953x 2-0020: failed writing register
[ 1.719872] i2c 2-003c: Fixing up cyclic dependency with 32e30000.mipi_csi
[ 1.727078] i2c i2c-2: IMX I2C adapter registered
[ 1.734052] imx-drm 32c00000.bus:display-subsystem: bound imx-lcdif-crtc.0 (ops lcdif_crtc_ops)
[ 1.742959] imx_sec_dsim_drv 32e10000.mipi_dsi: version number is 0x1060200
[ 1.749994] [drm:drm_bridge_attach] *ERROR* failed to attach bridge /soc@0/bus@32c00000/mipi_dsi@32e10000 to encoder DSI-34: -19
[ 1.761590] imx_sec_dsim_drv 32e10000.mipi_dsi: Failed to attach bridge: 32e10000.mipi_dsi
[ 1.769872] imx_sec_dsim_drv 32e10000.mipi_dsi: failed to bind sec dsim bridge: -19
[ 1.777542] imx-drm 32c00000.bus:display-subsystem: bound 32e10000.mipi_dsi (ops imx_sec_dsim_ops)
[ 1.787359] [drm] Initialized imx-drm 1.0.0 20120507 for 32c00000.bus:display-subsystem on minor 1
[ 1.799366] pps pps0: new PPS source ptp0
[ 1.814406] fec 30be0000.ethernet eth0: registered PHC device 0
[ 1.825351] imx-cpufreq-dt imx-cpufreq-dt: cpu speed grade 2 mkt segment 2 supported-hw 0x4 0x4
[ 1.834945] Hot alarm is canceled. GPU3D clock will return to 64/64
[ 1.844984] sdhci-esdhc-imx 30b40000.mmc: allocated mmc-pwrseq
[ 1.845875] sdhci-esdhc-imx 30b50000.mmc: Got CD GPIO
[ 1.852156] clk: Not disabling unused clocks
[ 1.886577] mmc1: SDHCI controller on 30b50000.mmc [30b50000.mmc] using ADMA
[ 1.886753] mmc0: SDHCI controller on 30b40000.mmc [30b40000.mmc] using ADMA
[ 1.903113] Freeing unused kernel memory: 2304K
[ 1.907753] Run /linuxrc as init process
Found New UDC: ci_hdrc.0
ci_hdrc.0 0
ffs.utp0
[ 1.950652] file system registered
[ 1.965959] Mass Storage Function, version: 2009/09/11
[ 1.971229] LUN: removable file: (no medium)
run utp at /dev/usb-utp0/ep0[ 1.980057] read descriptors

.
uuu fastboot client 1.0.0 [b[ 1.983984] read strings
uilt Nov 7 2019 19:25:07]
Start init usb
write string
Start handle command
uuc /dev/utp
uuc 0.6 [built Nov 7 2019 19:25:07]
UTP: Waiting for /dev/utp to appear

[AldoG]

Hello,

Yes, this is supported in i.MX8MM I have even used this on my side and found no problem.

Could you share how are you running the script?
Also, please run the tool in verbose mode and share both the tool log and the UART console logs.

i.e.
.\uuu.exe -v example_kernel_emmc.uuu

Best regards,
Aldo.