AM5746: USB 3.0 Device enumeration failure

MWagner

Part Number: AM5746
Other Parts Discussed in Thread: AM5726, AM5716

We’re having USB SuperSpeed enumeration issues when connecting a Dell Latitude E7470 PC with a USB 3.0 cable.

Our logs show that when the USB SuperSpeed connection failure occurs, the host negotiates a SuperSpeed connection to the scanner, then disconnects it within 200 ms. Then, within another 200 ms, the host does another connection/disconnection sequence. The host does this connection/disconnection sequence 23 times in total.

At the end of this sequence, the usbtreeview log shows that Port 15 (the SuperSpeed PC port that the device is plugged into) says:

"Unknown USB Device (Port Reset Failed)

and Port 3 (the HighSpeed PC USB A-port physically paired with Port 15) shows the connected device.

So, it appears that the host tried to establish the SuperSpeed connection 23 times, then gave up and settles with a HighSpeed connection to the device.

The PC chipset is the Intel(R) 100 series Chipset family.

At other times, enumeration fails entirely with this PC and no device shows up in the PC Device Manager.

over 5 years ago

0 Praveen Rao over 5 years ago

TI__Mastermind 49983 points

Hi,

Is this issue seen with multiple USB 3 devices? You mention about the scanner, can you elaborate more on this? Is it an AM5746 based device? Can you tell us what OS & OS Version is running on it?

Thanks.

0 MWagner over 5 years ago in reply to Praveen Rao

Intellectual 300 points

We have seen this issue when connecting that specific Dell PC to our scanner, which uses the AM5746. This scanner is running the mainline official Linux kernel version 4.19.32.

This Dell PC also fails to connect to two of our other scanners, one of which uses the AM5716, and the other which uses the AM5726. Those scanners are running the mainline official Linux kernel version 4.9.4.

We have also tried connecting this Dell PC to another of our scanners, which uses a USB 3.0 chip from a different vendor. This particular scanner/PC combo has no issues with USB 3.0. Every time the USB 3.0 cable is connected to the scanner and the PC, it successfully negotiates a SuperSpeed connection.

0 Praveen Rao over 5 years ago in reply to MWagner

TI__Mastermind 49983 points

Hi,

Thanks for the background on this. It is really hard to say if it is a software or a hardware issue here.

To start, please provide us the kernel dmesg logs on the device for the failing scenario so we can check if there were any errors encountered on the driver.

Thanks.

0 MWagner over 5 years ago in reply to Praveen Rao

Intellectual 300 points

I couldn't get the PC/scanner combo to fail in the same way today (ie. fail to negotiate SS and fall back to HS).

This PC acts very strangely. Most of the time (>95% of the time) it fails SS and falls back to HS.

Today it didn't do that.

I included a dmseg kernel log anyway, just as a preview of the kernel initialization of our system.

There isn't much info related to USB/dwc3 debugging.

Are there other switches we could turn on in the kernel

Fullscreen dmesg success log.txt Download

root@Sxxxx-00000000:~# dmesg
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.19.32-151753-ge714eff (oe-user@oe-host) (gcc version 8.2.0 (GCC)) #1 SMP Wed Dec 11 15:28:22 UTC 2019
[    0.000000] CPU: ARMv7 Processor [412fc0f2] revision 2 (ARMv7), cr=10c5387d
[    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: Kodak Alaris Amethyst
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] OMAP4: Map 0x8fe00000 to (ptrval) for dram barrier
[    0.000000] On node 0 totalpages: 65024
[    0.000000]   Normal zone: 572 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 65024 pages, LIFO batch:15
[    0.000000] DRA762 ES1.0
[    0.000000] random: get_random_bytes called from start_kernel+0x8c/0x374 with crng_init=0
[    0.000000] percpu: Embedded 15 pages/cpu @(ptrval) s30668 r8192 d22580 u61440
[    0.000000] pcpu-alloc: s30668 r8192 d22580 u61440 alloc=15*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 64452
[    0.000000] Kernel command line: console=ttyO2,115200n8 mem=262144k quiet katotalmem=2097152k kasoctype=AM574x kastrapping=0x02 kaubootdev=MMC2 root=/dev/mmcblk0p2 ro rootfstype=ext4 rootwait
[    0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[    0.000000] Memory: 248500K/260096K available (5120K kernel code, 227K rwdata, 1500K rodata, 1024K init, 169K bss, 11596K reserved, 0K cma-reserved, 0K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xd0000000 - 0xff800000   ( 760 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xcfe00000   ( 254 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0x(ptrval) - 0x(ptrval)   (6112 kB)
[    0.000000]       .init : 0x(ptrval) - 0x(ptrval)   (1024 kB)
[    0.000000]       .data : 0x(ptrval) - 0x(ptrval)   ( 228 kB)
[    0.000000]        .bss : 0x(ptrval) - 0x(ptrval)   ( 170 kB)
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] OMAP clockevent source: timer1 at 32786 Hz
[    0.000000] arch_timer: cp15 timer(s) running at 6.14MHz (virt).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x16af5adb9, max_idle_ns: 440795202250 ns
[    0.000005] sched_clock: 56 bits at 6MHz, resolution 162ns, wraps every 4398046511023ns
[    0.000013] Switching to timer-based delay loop, resolution 162ns
[    0.000238] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[    0.000243] OMAP clocksource: 32k_counter at 32768 Hz
[    0.000725] Console: colour dummy device 80x30
[    0.000744] Calibrating delay loop (skipped), value calculated using timer frequency.. 12.29 BogoMIPS (lpj=24590)
[    0.000756] pid_max: default: 32768 minimum: 301
[    0.000886] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.000894] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.001352] CPU: Testing write buffer coherency: ok
[    0.001544] /cpus/cpu@0 missing clock-frequency property
[    0.001560] /cpus/cpu@1 missing clock-frequency property
[    0.001571] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.001942] Setting up static identity map for 0x80100000 - 0x80100060
[    0.002029] rcu: Hierarchical SRCU implementation.
[    0.002411] smp: Bringing up secondary CPUs ...
[    0.002987] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.003065] smp: Brought up 1 node, 2 CPUs
[    0.003071] SMP: Total of 2 processors activated (24.59 BogoMIPS).
[    0.003076] CPU: All CPU(s) started in SVC mode.
[    0.004073] devtmpfs: initialized
[    0.017730] VFP support v0.3: implementor 41 architecture 4 part 30 variant f rev 0
[    0.017858] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.017870] futex hash table entries: 512 (order: 3, 32768 bytes)
[    0.017988] pinctrl core: initialized pinctrl subsystem
[    0.018360] NET: Registered protocol family 16
[    0.018551] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.019132] omap_hwmod: l3_main_2 using broken dt data from ocp
[    0.159423] gpio gpiochip0: (gpio-0-31): added GPIO chardev (254:0)
[    0.159474] gpiochip_setup_dev: registered GPIOs 0 to 31 on device: gpiochip0 (gpio-0-31)
[    0.159508] OMAP GPIO hardware version 0.1
[    0.160035] gpio gpiochip1: (gpio-32-63): added GPIO chardev (254:1)
[    0.160090] gpiochip_setup_dev: registered GPIOs 32 to 63 on device: gpiochip1 (gpio-32-63)
[    0.160530] gpio gpiochip2: (gpio-64-95): added GPIO chardev (254:2)
[    0.160578] gpiochip_setup_dev: registered GPIOs 64 to 95 on device: gpiochip2 (gpio-64-95)
[    0.161008] gpio gpiochip3: (gpio-96-127): added GPIO chardev (254:3)
[    0.161059] gpiochip_setup_dev: registered GPIOs 96 to 127 on device: gpiochip3 (gpio-96-127)
[    0.161486] gpio gpiochip4: (gpio-128-159): added GPIO chardev (254:4)
[    0.161536] gpiochip_setup_dev: registered GPIOs 128 to 159 on device: gpiochip4 (gpio-128-159)
[    0.161960] gpio gpiochip5: (gpio-160-191): added GPIO chardev (254:5)
[    0.162009] gpiochip_setup_dev: registered GPIOs 160 to 191 on device: gpiochip5 (gpio-160-191)
[    0.162462] gpio gpiochip6: (gpio-192-223): added GPIO chardev (254:6)
[    0.162510] gpiochip_setup_dev: registered GPIOs 192 to 223 on device: gpiochip6 (gpio-192-223)
[    0.162957] gpio gpiochip7: (gpio-224-255): added GPIO chardev (254:7)
[    0.163006] gpiochip_setup_dev: registered GPIOs 224 to 255 on device: gpiochip7 (gpio-224-255)
[    0.173271] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.173277] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.173680] omap4_sram_init:Unable to allocate sram needed to handle errata I688
[    0.173685] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[    0.173856] OMAP DMA hardware revision 0.0
[    0.179727] edma 43300000.edma: memcpy is disabled
[    0.182302] edma 43300000.edma: TI EDMA DMA engine driver
[    0.187725] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver (LinkedList1/2/3 supported)
[    0.188102] of_get_named_gpiod_flags: can't parse 'gpio' property of node '/fixedregulator-vdd_3v3[0]'
[    0.188289] of_get_named_gpiod_flags: parsed 'gpio' property of node '/fixedregulator-vtt[0]' - status (0)
[    0.190496] palmas 0-0058: Irq flag is 0x00000008
[    0.214817] palmas 0-0058: Muxing GPIO 2b, PWM 0, LED 0
[    0.216244] SMPS12: supplied by regulator-dummy
[    0.217646] SMPS3: supplied by regulator-dummy
[    0.219048] SMPS45: supplied by regulator-dummy
[    0.220584] SMPS6: supplied by regulator-dummy
[    0.221988] SMPS7: supplied by regulator-dummy
[    0.222494] random: fast init done
[    0.223379] SMPS8: supplied by regulator-dummy
[    0.224655] SMPS9: supplied by regulator-dummy
[    0.225409] LDO1: supplied by regulator-dummy
[    0.231821] LDO2: supplied by regulator-dummy
[    0.235690] LDO3: supplied by regulator-dummy
[    0.239696] LDO4: supplied by regulator-dummy
[    0.243710] LDO5: supplied by regulator-dummy
[    0.244224] LDO6: supplied by regulator-dummy
[    0.244736] LDO7: supplied by regulator-dummy
[    0.245252] LDO8: supplied by regulator-dummy
[    0.245772] LDO9: supplied by regulator-dummy
[    0.251739] LDOLN: supplied by regulator-dummy
[    0.255738] LDOUSB: supplied by regulator-dummy
[    0.260796] gpiochip_find_base: found new base at 504
[    0.260918] gpio gpiochip8: (48070000.i2c:tps659038@58:tps659038_gpio): added GPIO chardev (254:8)
[    0.260972] gpiochip_setup_dev: registered GPIOs 504 to 511 on device: gpiochip8 (48070000.i2c:tps659038@58:tps659038_gpio)
[    0.261025] omap_i2c 48070000.i2c: bus 0 rev0.12 at 400 kHz
[    0.261433] omap_i2c 48072000.i2c: bus 1 rev0.12 at 400 kHz
[    0.261750] omap_i2c 48060000.i2c: bus 2 rev0.12 at 400 kHz
[    0.262196] mcp230xx 3-0020: GPIO lookup for consumer reset
[    0.262202] mcp230xx 3-0020: using device tree for GPIO lookup
[    0.262224] of_get_named_gpiod_flags: parsed 'reset-gpios' property of node '/ocp/i2c@4807a000/mcp23017@20[0]' - status (0)
[    0.262249] gpio gpiochip1: Persistence not supported for GPIO 29
[    0.323473] gpiochip_find_base: found new base at 488
[    0.323571] gpio gpiochip9: (mcp23017): added GPIO chardev (254:9)
[    0.323632] gpiochip_setup_dev: registered GPIOs 488 to 503 on device: gpiochip9 (mcp23017)
[    0.323975] mcp230xx 3-0027: GPIO lookup for consumer reset
[    0.323980] mcp230xx 3-0027: using device tree for GPIO lookup
[    0.324001] of_get_named_gpiod_flags: parsed 'reset-gpios' property of node '/ocp/i2c@4807a000/mcp23017@27[0]' - status (0)
[    0.324010] gpio gpiochip1: Persistence not supported for GPIO 28
[    0.359519] gpiochip_find_base: found new base at 472
[    0.359612] gpio gpiochip10: (mcp23017): added GPIO chardev (254:10)
[    0.359660] gpiochip_setup_dev: registered GPIOs 472 to 487 on device: gpiochip10 (mcp23017)
[    0.359809] omap_i2c 4807a000.i2c: bus 3 rev0.12 at 400 kHz
[    0.359936] pps_core: LinuxPPS API ver. 1 registered
[    0.359940] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.360552] clocksource: Switched to clocksource arch_sys_counter
[    0.366177] NET: Registered protocol family 2
[    0.366596] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)
[    0.366618] TCP established hash table entries: 2048 (order: 1, 8192 bytes)
[    0.366638] TCP bind hash table entries: 2048 (order: 2, 16384 bytes)
[    0.366673] TCP: Hash tables configured (established 2048 bind 2048)
[    0.366718] UDP hash table entries: 256 (order: 1, 8192 bytes)
[    0.366737] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[    0.366833] NET: Registered protocol family 1
[    0.367130] RPC: Registered named UNIX socket transport module.
[    0.367135] RPC: Registered udp transport module.
[    0.367139] RPC: Registered tcp transport module.
[    0.367143] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.367676] hw perfevents: no interrupt-affinity property for /pmu, guessing.
[    0.367814] hw perfevents: enabled with armv7_cortex_a15 PMU driver, 7 counters available
[    0.369510] workingset: timestamp_bits=14 max_order=16 bucket_order=2
[    0.369949] NFS: Registering the id_resolver key type
[    0.369966] Key type id_resolver registered
[    0.369970] Key type id_legacy registered
[    0.371284] Key type asymmetric registered
[    0.371289] Asymmetric key parser 'x509' registered
[    0.371304] io scheduler noop registered (default)
[    0.374413] pinctrl-single 4a003400.pinmux: 282 pins, size 1128
[    0.376671] vdd_3v3: supplied by regen1
[    0.376836] vtt_fixed: supplied by smps3
[    0.378474] omap_uart 4806a000.serial: no wakeirq for uart0
[    0.378492] of_get_named_gpiod_flags: can't parse 'rts-gpio' property of node '/ocp/serial@4806a000[0]'
[    0.378541] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 43, base_baud = 3000000) is a OMAP UART0
[    0.378757] of_get_named_gpiod_flags: can't parse 'rts-gpio' property of node '/ocp/serial@48020000[0]'
[    0.378796] 48020000.serial: ttyO2 at MMIO 0x48020000 (irq = 44, base_baud = 3000000) is a OMAP UART2
[    0.390007] console [ttyO2] enabled
[    0.392914] loop: module loaded
[    0.393473] mdio_bus fixed-0: GPIO lookup for consumer reset
[    0.393479] mdio_bus fixed-0: using lookup tables for GPIO lookup
[    0.393486] mdio_bus fixed-0: No GPIO consumer reset found
[    0.393505] libphy: Fixed MDIO Bus: probed
[    0.394722] mdio_bus 48485000.mdio: GPIO lookup for consumer reset
[    0.394728] mdio_bus 48485000.mdio: using device tree for GPIO lookup
[    0.394742] of_get_named_gpiod_flags: can't parse 'reset-gpios' property of node '/ocp/ethernet@48484000/mdio@48485000[0]'
[    0.394754] of_get_named_gpiod_flags: can't parse 'reset-gpio' property of node '/ocp/ethernet@48484000/mdio@48485000[0]'
[    0.394760] mdio_bus 48485000.mdio: using lookup tables for GPIO lookup
[    0.394766] mdio_bus 48485000.mdio: No GPIO consumer reset found
[    0.432575] davinci_mdio 48485000.mdio: davinci mdio revision 1.6, bus freq 1000000
[    0.432581] libphy: 48485000.mdio: probed
[    0.432589] mdio_bus 48485000.mdio: ethernet-phy@0 has invalid PHY address
[    0.439794] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 0
[    0.441767] of_get_named_gpiod_flags: can't parse 'reset-gpios' property of node '/ocp/ethernet@48484000/mdio@48485000/ethernet-phy@0[0]'
[    0.441899] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 1
[    0.442542] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 2
[    0.443597] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 3
[    0.444781] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 4
[    0.445836] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 5
[    0.446891] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 6
[    0.447737] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 7
[    0.448788] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 8
[    0.449840] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 9
[    0.450893] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 10
[    0.451947] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 11
[    0.452988] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 12
[    0.454042] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 13
[    0.455096] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 14
[    0.456150] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 15
[    0.457193] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 16
[    0.458247] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 17
[    0.459301] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 18
[    0.460355] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 19
[    0.461403] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 20
[    0.462456] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 21
[    0.463511] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 22
[    0.464569] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 23
[    0.465416] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 24
[    0.466470] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 25
[    0.467524] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 26
[    0.468567] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 27
[    0.469619] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 28
[    0.470674] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 29
[    0.471727] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 30
[    0.472779] mdio_bus 48485000.mdio: scan phy ethernet-phy at address 31
[    0.473836] davinci_mdio 48485000.mdio: phy[0]: device 48485000.mdio:00, driver Micrel KSZ9031 Gigabit PHY
[    0.474162] cpsw 48484000.ethernet: Detected MACID = 90:9a:77:43:d1:00
[    0.474200] cpsw 48484000.ethernet: initialized cpsw ale version 1.4
[    0.474207] cpsw 48484000.ethernet: ALE Table size 1024
[    0.497232] bq32k 2-0068: rtc core: registered bq32k as rtc0
[    0.497967] omap_rtc 48838000.rtc: registered as rtc1
[    0.500388] palmas-rtc 48070000.i2c:tps659038@58:tps659038_rtc: rtc core: registered 48070000.i2c:tps659038@58:tps659038_rtc as rtc2
[    0.502062] cpu cpu0: Linked as a consumer to regulator.3
[    0.502092] cpu cpu0: Linked as a consumer to regulator.26
[    0.502451] sdhci: Secure Digital Host Controller Interface driver
[    0.502456] sdhci: Copyright(c) Pierre Ossman
[    0.502460] sdhci-pltfm: SDHCI platform and OF driver helper
[    0.502654] sdhci-omap 480b4000.mmc: GPIO lookup for consumer wp
[    0.502660] sdhci-omap 480b4000.mmc: using device tree for GPIO lookup
[    0.502673] of_get_named_gpiod_flags: can't parse 'wp-gpios' property of node '/ocp/mmc@480b4000[0]'
[    0.502684] of_get_named_gpiod_flags: can't parse 'wp-gpio' property of node '/ocp/mmc@480b4000[0]'
[    0.502691] sdhci-omap 480b4000.mmc: using lookup tables for GPIO lookup
[    0.502698] sdhci-omap 480b4000.mmc: No GPIO consumer wp found
[    0.502815] sdhci-omap 480b4000.mmc: Linked as a consumer to regulator.1
[    0.502825] sdhci-omap 480b4000.mmc: Dropping the link to regulator.1
[    0.502854] sdhci-omap 480b4000.mmc: Linked as a consumer to regulator.1
[    0.528397] mmc0: SDHCI controller on 480b4000.mmc [480b4000.mmc] using ADMA
[    0.528721] of_get_named_gpiod_flags: parsed 'gpios' property of node '/gpio_leds/led@11[0]' - status (0)
[    0.528729] no flags found for gpios
[    0.529127] of_get_named_gpiod_flags: parsed 'gpios' property of node '/gpio_leds/led@10[0]' - status (0)
[    0.529132] no flags found for gpios
[    0.529481] of_get_named_gpiod_flags: parsed 'gpios' property of node '/gpio_leds/led@21[0]' - status (0)
[    0.529486] no flags found for gpios
[    0.529825] of_get_named_gpiod_flags: parsed 'gpios' property of node '/gpio_leds/led@20[0]' - status (0)
[    0.529830] no flags found for gpios
[    0.530036] of_get_named_gpiod_flags: parsed 'gpios' property of node '/gpio_leds/led@0[0]' - status (0)
[    0.530049] gpio gpiochip5: Persistence not supported for GPIO 21
[    0.530053] no flags found for gpios
[    0.530118] of_get_named_gpiod_flags: parsed 'gpios' property of node '/gpio_leds/led@1[0]' - status (0)
[    0.530130] gpio gpiochip0: Persistence not supported for GPIO 30
[    0.530133] no flags found for gpios
[    0.531639] Initializing XFRM netlink socket
[    0.531724] NET: Registered protocol family 10
[    0.532282] Segment Routing with IPv6
[    0.532331] NET: Registered protocol family 17
[    0.532346] NET: Registered protocol family 15
[    0.532394] Key type dns_resolver registered
[    0.532481] Registering SWP/SWPB emulation handler
[    0.532488] omap_voltage_late_init: Voltage driver support not added
[    0.539167] Power Management for TI OMAP4+ devices.
[    0.540313] bq32k 2-0068: setting system clock to 2020-06-18 19:43:37 UTC (1592509417)
[    0.541401] Waiting for root device /dev/mmcblk0p2...
[    0.592098] mmc0: new DDR MMC card at address 0001
[    0.592474] mmcblk0: mmc0:0001 004GA0 3.69 GiB
[    0.592683] mmcblk0boot0: mmc0:0001 004GA0 partition 1 2.00 MiB
[    0.592872] mmcblk0boot1: mmc0:0001 004GA0 partition 2 2.00 MiB
[    0.592975] mmcblk0rpmb: mmc0:0001 004GA0 partition 3 512 KiB, chardev (249:0)
[    0.593649]  mmcblk0: p1 p2 p3 p4
[    0.610743] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    0.610770] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    0.611296] devtmpfs: mounted
[    0.611937] Freeing unused kernel memory: 1024K
[    0.624648] Run /sbin/init as init process
[    0.718653] systemd[1]: systemd 239 running in system mode. (-PAM -AUDIT -SELINUX -IMA -APPARMOR -SMACK +SYSVINIT +UTMP -LIBCRYPTSETUP -GCRYPT -GNUTLS -ACL -XZ -LZ4 -SECCOMP +BLKID -ELFUTILS +KMOD -IDN2 -IDN -PCRE2 default-hierarchy=hybrid)
[    0.718986] systemd[1]: Detected architecture arm.
[    0.727647] systemd[1]: No hostname configured.
[    0.727665] systemd[1]: Set hostname to <localhost>.
[    0.730132] random: systemd: uninitialized urandom read (16 bytes read)
[    0.730156] systemd[1]: Initializing machine ID from random generator.
[    0.730247] systemd[1]: Installed transient /etc/machine-id file.
[    0.781049] systemd[1]: File /lib/systemd/system/systemd-journald.service:36 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling.
[    0.781062] systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.)
[    0.881913] random: systemd: uninitialized urandom read (16 bytes read)
[    0.881955] systemd[1]: Reached target Swap.
[    0.882151] random: systemd: uninitialized urandom read (16 bytes read)
[    0.882182] systemd[1]: Reached target Remote File Systems.
[    0.919752] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[    0.961129] cryptodev: loading out-of-tree module taints kernel.
[    0.969137] cryptodev: driver 1.9 loaded.
[    0.971062] i2c /dev entries driver
[    1.160936] systemd-journald[86]: Received request to flush runtime journal from PID 1
[    1.636491] palmas_pwrbutton 48070000.i2c:tps659038@58:tps659038_pwr_button: h/w controlled shutdown duration=6 seconds
[    1.641475] input: palmas_pwron as /devices/platform/44000000.ocp/48070000.i2c/i2c-0/0-0058/48070000.i2c:tps659038@58:tps659038_pwr_button/input/input0
[    1.653697] omap_rng 48090000.rng: Random Number Generator ver. 20
[    1.662311] tsc2013 3-004b: GPIO lookup for consumer reset
[    1.662319] tsc2013 3-004b: using device tree for GPIO lookup
[    1.662346] of_get_named_gpiod_flags: parsed 'reset-gpios' property of node '/ocp/i2c@4807a000/tsc2013@4B[0]' - status (0)
[    1.662975] tsc2013 3-004b: Linked as a consumer to regulator.1
[    1.670565] input: TSC2013 touchscreen as /devices/platform/44000000.ocp/4807a000.i2c/i2c-3/3-004b/input/input1
[    1.684420] omap-des 480a5000.des: OMAP DES hw accel rev: 2.2
[    1.688141] omap-mailbox 4883a000.mailbox: no available mbox devices found
[    1.690866] omap-des 480a5000.des: will run requests pump with realtime priority
[    1.720754] omap-mailbox 4883c000.mailbox: no available mbox devices found
[    1.730916] omap-mailbox 4883e000.mailbox: no available mbox devices found
[    1.740485] omap-mailbox 48840000.mailbox: no available mbox devices found
[    1.859746] phy phy-4a084000.phy.1: Linked as a consumer to regulator.20
[    1.860370] phy phy-4a085000.phy.3: Linked as a consumer to regulator.20
[    1.879100] omap-sham 4b101000.sham: hw accel on OMAP rev 4.3
[    1.881022] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[    1.883189] omap-aes 4b500000.aes: OMAP AES hw accel rev: 3.3
[    1.886460] omap-aes 4b500000.aes: will run requests pump with realtime priority
[    1.887644] extcon-usb-gpio extcon_usb1: GPIO lookup for consumer id
[    1.887651] extcon-usb-gpio extcon_usb1: using device tree for GPIO lookup
[    1.887666] of_get_named_gpiod_flags: can't parse 'id-gpios' property of node '/extcon_usb1[0]'
[    1.887689] of_get_named_gpiod_flags: parsed 'id-gpio' property of node '/extcon_usb1[0]' - status (0)
[    1.887732] gpio gpiochip4: Persistence not supported for GPIO 15
[    1.887740] extcon-usb-gpio extcon_usb1: GPIO lookup for consumer vbus
[    1.887746] extcon-usb-gpio extcon_usb1: using device tree for GPIO lookup
[    1.887758] of_get_named_gpiod_flags: can't parse 'vbus-gpios' property of node '/extcon_usb1[0]'
[    1.887769] of_get_named_gpiod_flags: can't parse 'vbus-gpio' property of node '/extcon_usb1[0]'
[    1.887776] extcon-usb-gpio extcon_usb1: using lookup tables for GPIO lookup
[    1.887783] extcon-usb-gpio extcon_usb1: No GPIO consumer vbus found
[    1.887872] omap_gpio 4805b000.gpio: Could not set line 15 debounce to 20000 microseconds (-22)
[    1.897558] of_get_named_gpiod_flags: parsed 'gpios' property of node '/gpio_keys/buttonplay@2[0]' - status (0)
[    1.897573] gpio-474 (GPIO Key Play): gpiod_set_debounce: missing set() or set_config() operations
[    1.898814] of_get_named_gpiod_flags: parsed 'gpios' property of node '/gpio_keys/buttoncancel@1[0]' - status (0)
[    1.898825] gpio-473 (GPIO Key Esc): gpiod_set_debounce: missing set() or set_config() operations
[    1.900942] of_get_named_gpiod_flags: parsed 'gpios' property of node '/gpio_keys/buttonhome@0[0]' - status (0)
[    1.900955] gpio-472 (GPIO Key Home): gpiod_set_debounce: missing set() or set_config() operations
[    1.902271] input: gpio_keys as /devices/platform/gpio_keys/input/input2
[    1.909069] omap-aes 4b700000.aes: OMAP AES hw accel rev: 3.3
[    1.915392] omap-aes 4b700000.aes: will run requests pump with realtime priority
[    2.010608] fbtft: module is from the staging directory, the quality is unknown, you have been warned.
[    2.011896] fb_ssd2119: module is from the staging directory, the quality is unknown, you have been warned.
[    2.012174] fbtft_of_value: width = 320
[    2.012179] fbtft_of_value: height = 240
[    2.012188] fbtft_of_value: debug = 3
[    2.012193] fbtft_of_value: rotate = 0
[    2.012198] fbtft_of_value: fps = 20
[    2.012280] fb_ssd2119 spi2.0: fbtft_gamma_parse_str() str=
[    2.012286] fb_ssd2119 spi2.0: 00 12 05 03 00 00 04 01 00 01
[    2.012286] 00 08 00 03 05 05 05 03 07 07
[    2.012329] of_get_named_gpiod_flags: parsed 'reset-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[0]' - status (0)
[    2.012492] fb_ssd2119 spi2.0: fbtft_request_one_gpio: 'reset-gpios' = GPIO485
[    2.012514] of_get_named_gpiod_flags: parsed 'dc-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[0]' - status (0)
[    2.012530] fb_ssd2119 spi2.0: fbtft_request_one_gpio: 'dc-gpios' = GPIO33
[    2.012584] of_get_named_gpiod_flags: parsed 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[0]' - status (0)
[    2.012760] fb_ssd2119 spi2.0: fbtft_request_one_gpio: 'led-gpios' = GPIO479
[    2.012780] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[1]'
[    2.012796] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[2]'
[    2.012812] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[3]'
[    2.012826] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[4]'
[    2.012841] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[5]'
[    2.012859] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[6]'
[    2.012872] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[7]'
[    2.012885] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[8]'
[    2.012897] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[9]'
[    2.012910] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[10]'
[    2.012923] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[11]'
[    2.012935] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[12]'
[    2.012949] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[13]'
[    2.012962] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[14]'
[    2.012974] of_get_named_gpiod_flags: can't parse 'led-gpios' property of node '/ocp/spi@480ba000/ssd2119@0[15]'
[    2.012981] fb_ssd2119 spi2.0: fbtft_verify_gpios()
[    2.012987] fb_ssd2119 spi2.0: fbtft_reset()
[    2.023557] dwc3 488d0000.usb: Failed to get clk 'ref': -2
[    2.053588] dwc3 48890000.usb: Failed to get clk 'ref': -2
[    2.059663] dwc3 48890000.usb: changing max_speed on rev 5533202a
[    2.077403] usbcore: registered new interface driver usbfs
[    2.078054] usbcore: registered new interface driver hub
[    2.078142] usbcore: registered new device driver usb
[    2.089567] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[    2.089595] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1
[    2.089746] xhci-hcd xhci-hcd.0.auto: hcc params 0x0220f04c hci version 0x100 quirks 0x0000000002010010
[    2.089794] xhci-hcd xhci-hcd.0.auto: irq 172, io mem 0x488d0000
[    2.089932] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[    2.089940] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.089946] usb usb1: Product: xHCI Host Controller
[    2.089952] usb usb1: Manufacturer: Linux 4.19.32-151753-ge714eff xhci-hcd
[    2.089958] usb usb1: SerialNumber: xhci-hcd.0.auto
[    2.091028] hub 1-0:1.0: USB hub found
[    2.091058] hub 1-0:1.0: 1 port detected
[    2.091940] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[    2.091956] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2
[    2.091968] xhci-hcd xhci-hcd.0.auto: Host supports USB 3.0  SuperSpeed
[    2.092030] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[    2.092130] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 4.19
[    2.092137] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.092143] usb usb2: Product: xHCI Host Controller
[    2.092149] usb usb2: Manufacturer: Linux 4.19.32-151753-ge714eff xhci-hcd
[    2.092155] usb usb2: SerialNumber: xhci-hcd.0.auto
[    2.105291] hub 2-0:1.0: USB hub found
[    2.105325] hub 2-0:1.0: 1 port detected
[    2.140591] fb_ssd2119 spi2.0: init: write(0x07) 0x00 0x21
[    2.140805] fb_ssd2119 spi2.0: init: write(0x00) 0x00 0x01
[    2.140840] fb_ssd2119 spi2.0: init: write(0x07) 0x00 0x23
[    2.140874] fb_ssd2119 spi2.0: init: write(0x10) 0x00 0x00
[    2.141412] fb_ssd2119 spi2.0: init: msleep(30)
[    2.180572] fb_ssd2119 spi2.0: init: write(0x07) 0x00 0x33
[    2.180620] fb_ssd2119 spi2.0: init: write(0x11) 0x68 0x30
[    2.180665] fb_ssd2119 spi2.0: init: write(0x02) 0x06 0x00
[    2.180702] fb_ssd2119 spi2.0: init: write(0x03) 0x6E 0x38
[    2.180745] fb_ssd2119 spi2.0: init: write(0x0C) 0x00 0x03
[    2.180778] fb_ssd2119 spi2.0: init: write(0x0D) 0x00 0x0B
[    2.180820] fb_ssd2119 spi2.0: init: write(0x0E) 0x29 0x00
[    2.180853] fb_ssd2119 spi2.0: init: write(0x1E) 0x00 0xBE
[    2.180886] fb_ssd2119 spi2.0: init: write(0x26) 0x38 0x00
[    2.180919] fb_ssd2119 spi2.0: init: write(0x12) 0x09 0x99
[    2.180962] fb_ssd2119 spi2.0: init: write(0x01) 0x72 0xEF
[    2.313901] fb_ssd2119 spi2.0: Display update: 1128 kB/s, fps=0
[    2.314896] graphics fb0: fb_ssd2119 frame buffer, 320x240, 150 KiB video memory, 4 KiB buffer memory, fps=20, spi2.0 at 12 MHz
[    2.343706] EXT4-fs (mmcblk0p4): mounted filesystem with ordered data mode. Opts: (null)
[    2.346174] EXT4-fs (mmcblk0p3): mounted filesystem with ordered data mode. Opts: (null)
[    2.428604] usb 1-1: new high-speed USB device number 2 using xhci-hcd
[    2.564885] net eth0: initializing cpsw version 1.15 (0)
[    2.580918] usb 1-1: New USB device found, idVendor=0424, idProduct=2512, bcdDevice= b.b3
[    2.580928] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    2.636229] hub 1-1:1.0: USB hub found
[    2.637264] hub 1-1:1.0: 2 ports detected
[    2.661767] Micrel KSZ9031 Gigabit PHY 48485000.mdio:00: attached PHY driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=48485000.mdio:00, irq=POLL)
[    2.669105] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[    2.941341] gpio gpiochip7: Persistence not supported for GPIO 12
[    2.942703] gpio gpiochip5: Persistence not supported for GPIO 20
[    2.964170] gpio gpiochip0: Persistence not supported for GPIO 26
[    2.964542] gpio gpiochip1: Persistence not supported for GPIO 30
[    2.985093] gpio gpiochip4: Persistence not supported for GPIO 13
[    3.005525] gpio gpiochip4: Persistence not supported for GPIO 1
[    3.025936] gpio gpiochip4: Persistence not supported for GPIO 0
[    3.046359] gpio gpiochip0: Persistence not supported for GPIO 28
[    3.168461] gpio gpiochip7: Persistence not supported for GPIO 15
[    3.168903] gpio gpiochip7: Persistence not supported for GPIO 11
[    3.268129] random: crng init done
[    3.268138] random: 7 urandom warning(s) missed due to ratelimiting
[    3.291718] fb_ssd2119 spi2.0: fbtft_backlight_update_status: polarity=1, power=0, fb_blank=0
[    4.102117] gpio gpiochip7: Persistence not supported for GPIO 14
[    4.107376] gpio gpiochip5: Persistence not supported for GPIO 25
[    4.107881] gpio gpiochip5: Persistence not supported for GPIO 26
[    4.115236] gpio gpiochip4: Persistence not supported for GPIO 6
[    5.064613] cpsw 48484000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[    5.064651] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[    5.071413] ka-mailbox: mbox@a77e26f8 fifo1 enabling
[    5.072002] ka-mailbox: mbox@37e16dd6 fifo1 enabling
[    5.129062] ka-mailbox: mbox@a52d1d2f fifo1 enabling
[    5.965814] ka-mailbox: mbox@1cafea7a fifo1 enabling
[    5.973642] gpio gpiochip4: Persistence not supported for GPIO 5
[    5.974388] gpio gpiochip7: Persistence not supported for GPIO 23
[    5.975016] gpio gpiochip7: Persistence not supported for GPIO 0
[    5.978361] gpio gpiochip5: Persistence not supported for GPIO 23
[    6.004880] gpio gpiochip7: Persistence not supported for GPIO 8
[    6.021133] gpio gpiochip5: Persistence not supported for GPIO 24
[    6.025576] gpio gpiochip5: Persistence not supported for GPIO 12
[    6.076107] gpio gpiochip5: Persistence not supported for GPIO 22
[    6.076237] gpio gpiochip7: Persistence not supported for GPIO 17
[    6.077177] gpio gpiochip7: Persistence not supported for GPIO 18
[    6.078047] gpio gpiochip7: Persistence not supported for GPIO 19
[    6.082297] gpio gpiochip4: Persistence not supported for GPIO 3
[    6.083135] gpio gpiochip4: Persistence not supported for GPIO 12
[    6.083902] gpio gpiochip7: Persistence not supported for GPIO 9
[    6.084703] gpio gpiochip4: Persistence not supported for GPIO 11
[    6.085477] gpio gpiochip7: Persistence not supported for GPIO 6
[    6.086226] gpio gpiochip4: Persistence not supported for GPIO 2
[    6.087016] gpio gpiochip7: Persistence not supported for GPIO 21
[    6.087787] gpio gpiochip7: Persistence not supported for GPIO 22
[    6.095641] gpio gpiochip0: Persistence not supported for GPIO 29
[    6.097120] gpio gpiochip4: Persistence not supported for GPIO 8
[    6.097979] gpio gpiochip4: Persistence not supported for GPIO 9
[    6.101619] gpio gpiochip1: Persistence not supported for GPIO 5
[    7.338371] file system registered
[    7.387068] read descriptors
[    7.387082] read strings
[    7.387146] read descriptors
[    7.387157] read strings
[    7.387211] read descriptors
[    7.387219] read strings
[    7.490311] configfs-gadget gadget: super-speed config #1: WindowsConfig
[   17.186201] configfs-gadget gadget: super-speed config #1: WindowsConfig
[   21.112311] configfs-gadget gadget: super-speed config #1: WindowsConfig
[   27.036613] configfs-gadget gadget: super-speed config #1: WindowsConfig
[   30.932416] configfs-gadget gadget: super-speed config #1: WindowsConfig
[   34.340944] configfs-gadget gadget: super-speed config #1: WindowsConfig
[   43.749513] configfs-gadget gadget: super-speed config #1: WindowsConfig
[   47.960346] configfs-gadget gadget: high-speed config #1: WindowsConfig

to increase the visibility into the low level behavior of the USB subsystem?

0 Praveen Rao over 5 years ago in reply to MWagner

TI__Mastermind 49983 points

Hello,

I suspect this issue is local to the PC that is being used for the test or due to the speed-negotiation failure between the PC and the Scanner (USB port).

Not sure if this is software related. We can definitely turn on the increased debug level at the driver, but if there is any error it would show up in the normal kernel dmseg log. Another suggestion is to connect a USB analyzer between the Scanner and the PC and collect the USB trace and analyze the USB connect sequence.

We can look at it if you can share the failure log but for now, I marking this as resolved.

Thanks.

0 Andrew Bradford over 5 years ago in reply to Praveen Rao

Prodigy 80 points

Hi Praveen,

I'm responding on behalf of Mark. When we cause the error to happen we do not see anything logged in the kernel dmesg. We will capture a USB protocol analyzer trace early next week and if anything looks like the TI AM57xx part is to blame we will follow up with this issue with the new information.

Thanks for your help,

Andrew

0 MWagner over 5 years ago in reply to Praveen Rao

Intellectual 300 points

I tried to attach a USB analyzer trace when connecting the Dell E7470 to the scanner containing the AM574x device, but the file size is too large to attach (130 MB).

It enumerated the connection at SuperSpeed with the USB analyzer in between the PC and the scanner, so it doesn't reproduce the issue we're seeing.

Is there a way to send the USB analyzer trace for you to look at and see if anything is out of line?

0 Praveen Rao over 5 years ago in reply to MWagner

TI__Mastermind 49983 points

Since there is no driver error in the dmesg log, it is definitely not a software issue.

As you say that you are unable to reproduce the issue when connecting the USB analyzer, not sure how we can help here. It would only be helpful if you could send the trace of the issue case.

Thanks.

0 MWagner over 5 years ago in reply to Praveen Rao

Intellectual 300 points

Since placing the USB analyzer between the PC and the scanner "fixes" the issue, this suggests that the SS negotiation failure is in the electrical domain. Is there some other piece of test equipment that could be used to observe and decode the electrical signals during SS negotiation, that wouldn't interfere with or change the character of the signals?

0 kcastille over 5 years ago in reply to MWagner

TI__Guru 56317 points

Mark,

Checking in ... Can you update your latest status on this issue? If you try connecting to a different PC (first a different machine altogether, 2nd a different instance of the same machine make/model?)

Thanks,

Kyle

0 MWagner over 5 years ago in reply to kcastille

Intellectual 300 points

This issue only happens with that specific PC connected to a scanner with a AM5746 or a AM5716. We don't have another instance of that PC to test with.

But, as I previously stated, this issue does not happen when we connect that PC to other scanners that use a different USB 3.0 chip set.

0 MWagner over 5 years ago in reply to kcastille

Intellectual 300 points

We only have one of the Dell E7470 PC. But this PC exhibits this issue with all of our 5746 and 5716 based scanners.

However, as stated previously, this PC does not have the issue with other scanners that use USB chipsets from other vendors.

Processors

Processors forum

AM5746: USB 3.0 Device enumeration failure