[参考译文] DRA821U：USB3.0在 J7200 SOM_Rev PROC105E6上不起作用

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1181782/dra821u-usb3-0-does-not-work-on-j7200-som_rev-proc105e6

尊敬的 TI 和 DRA821 Champ

EVM 套件上的 USB3.0支持仍然存在问题。

即使 TI 封装二进制文件在我的 EVM 上工作、USB3.0也不适用于客户的 EVM 设置。

测试的电路板版本如下所示。

*客户电路板修订版

－J7 CP 板：PROC079E3

- J7200XSOMG01EVM 板：PROC105E6(001)

* Arrow 电路板修订版

－J7 CP 板： PROC079E3

- J7200XSOMG01EVM 板：PROC105E8A (001)

*属于客户的 J7200 SOM 板照片

我们只能通过客户测试设置和 Arrow 测试设置来发现这种差异。

以下是测试期间捕获的日志。

root@j7200-evm:~# [ 4895.715013] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[ 4895.720532] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 1
[ 4895.734138] xhci-hcd xhci-hcd.1.auto: hcc params 0x200073c9 hci version 0x100 quirks 0x0000002000010010
[ 4895.743626] xhci-hcd xhci-hcd.1.auto: irq 515, io mem 0x06010000
[ 4895.750010] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[ 4895.758316] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4895.765598] usb usb1: Product: xHCI Host Controller
[ 4895.770502] usb usb1: Manufacturer: Linux 5.10.100-g7a7a3af903 xhci-hcd
[ 4895.777166] usb usb1: SerialNumber: xhci-hcd.1.auto
[ 4895.782429] hub 1-0:1.0: USB hub found
[ 4895.786300] hub 1-0:1.0: 1 port detected
[ 4895.790560] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[ 4895.796136] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 2
[ 4895.803828] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0 SuperSpeed
[ 4895.810494] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[ 4895.818744] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10
[ 4895.827080] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4895.834316] usb usb2: Product: xHCI Host Controller
[ 4895.839252] usb usb2: Manufacturer: Linux 5.10.100-g7a7a3af903 xhci-hcd
[ 4895.845880] usb usb2: SerialNumber: xhci-hcd.1.auto
[ 4895.851295] hub 2-0:1.0: USB hub found
[ 4895.855131] hub 2-0:1.0: 1 port detected
[ 4895.859579] xhci-hcd xhci-hcd.1.auto: remove, state 1
[ 4895.864671] usb usb2: USB disconnect, device number 1
[ 4895.870205] xhci-hcd xhci-hcd.1.auto: USB bus 2 deregistered
[ 4895.875911] xhci-hcd xhci-hcd.1.auto: remove, state 4
[ 4895.880964] usb usb1: USB disconnect, device number 1
[ 4896.128397] xhci-hcd xhci-hcd.1.auto: USB bus 1 deregistered
[ 4896.136073] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[ 4896.141674] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 1
[ 4896.151000] xhci-hcd xhci-hcd.1.auto: hcc params 0x200073c9 hci version 0x100 quirks 0x0000002000010010
[ 4896.160453] xhci-hcd xhci-hcd.1.auto: irq 515, io mem 0x06010000
[ 4896.166825] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[ 4896.175171] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4896.182497] usb usb1: Product: xHCI Host Controller
[ 4896.187450] usb usb1: Manufacturer: Linux 5.10.100-g7a7a3af903 xhci-hcd
[ 4896.194237] usb usb1: SerialNumber: xhci-hcd.1.auto
[ 4896.199538] hub 1-0:1.0: USB hub found
[ 4896.203443] hub 1-0:1.0: 1 port detected
[ 4896.207766] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[ 4896.213374] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 2
[ 4896.221120] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0 SuperSpeed
[ 4896.227803] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[ 4896.236029] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10
[ 4896.244402] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4896.251642] usb usb2: Product: xHCI Host Controller
[ 4896.256626] usb usb2: Manufacturer: Linux 5.10.100-g7a7a3af903 xhci-hcd
[ 4896.263284] usb usb2: SerialNumber: xhci-hcd.1.auto
[ 4896.268700] hub 2-0:1.0: USB hub found
[ 4896.272527] hub 2-0:1.0: 1 port detected
[ 4896.276865] xhci-hcd xhci-hcd.1.auto: remove, state 1
[ 4896.281974] usb usb2: USB disconnect, device number 1
[ 4896.287681] xhci-hcd xhci-hcd.1.auto: USB bus 2 deregistered
[ 4896.293393] xhci-hcd xhci-hcd.1.auto: remove, state 4
[ 4896.298554] usb usb1: USB disconnect, device number 1
[ 4896.544132] xhci-hcd xhci-hcd.1.auto: USB bus 1 deregistered
[ 4896.552105] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[ 4896.557724] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 1
[ 4896.567117] xhci-hcd xhci-hcd.1.auto: hcc params 0x200073c9 hci version 0x100 quirks 0x0000002000010010
[ 4896.576649] xhci-hcd xhci-hcd.1.auto: irq 515, io mem 0x06010000
[ 4896.582917] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[ 4896.591287] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4896.598524] usb usb1: Product: xHCI Host Controller
[ 4896.603496] usb usb1: Manufacturer: Linux 5.10.100-g7a7a3af903 xhci-hcd
[ 4896.610121] usb usb1: SerialNumber: xhci-hcd.1.auto
[ 4896.615497] hub 1-0:1.0: USB hub found
[ 4896.619434] hub 1-0:1.0: 1 port detected
[ 4896.623703] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[ 4896.629243] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 2
[ 4896.636963] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0 SuperSpeed
[ 4896.643640] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[ 4896.651860] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10
[ 4896.660137] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4896.667380] usb usb2: Product: xHCI Host Controller
[ 4896.672320] usb usb2: Manufacturer: Linux 5.10.100-g7a7a3af903 xhci-hcd
[ 4896.678960] usb usb2: SerialNumber: xhci-hcd.1.auto
[ 4896.684386] hub 2-0:1.0: USB hub found
[ 4896.688246] hub 2-0:1.0: 1 port detected
[ 4896.692667] xhci-hcd xhci-hcd.1.auto: remove, state 1
[ 4896.697769] usb usb2: USB disconnect, device number 1
[ 4896.703524] xhci-hcd xhci-hcd.1.auto: USB bus 2 deregistered
[ 4896.709263] xhci-hcd xhci-hcd.1.auto: remove, state 4
[ 4896.714431] usb usb1: USB disconnect, device number 1
[ 4896.960134] xhci-hcd xhci-hcd.1.auto: USB bus 1 deregistered
[ 4896.968104] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[ 4896.973753] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 1
[ 4896.983143] xhci-hcd xhci-hcd.1.auto: hcc params 0x200073c9 hci version 0x100 quirks 0x0000002000010010
[ 4896.992676] xhci-hcd xhci-hcd.1.auto: irq 515, io mem 0x06010000
[ 4896.998912] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[ 4897.007257] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4897.014517] usb usb1: Product: xHCI Host Controller
[ 4897.019464] usb usb1: Manufacturer: Linux 5.10.100-g7a7a3af903 xhci-hcd
[ 4897.026089] usb usb1: SerialNumber: xhci-hcd.1.auto
[ 4897.031445] hub 1-0:1.0: USB hub found
[ 4897.035383] hub 1-0:1.0: 1 port detected
[ 4897.039678] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[ 4897.045213] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 2
[ 4897.052921] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0 SuperSpeed
[ 4897.059538] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[ 4897.067734] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10
[ 4897.076011] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4897.083280] usb usb2: Product: xHCI Host Controller
[ 4897.088186] usb usb2: Manufacturer: Linux 5.10.100-g7a7a3af903 xhci-hcd
[ 4897.094829] usb usb2: SerialNumber: xhci-hcd.1.auto
[ 4897.100072] hub 2-0:1.0: USB hub found
[ 4897.103896] hub 2-0:1.0: 1 port detected
[ 4897.108224] xhci-hcd xhci-hcd.1.auto: remove, state 1
[ 4897.113315] usb usb2: USB disconnect, device number 1
[ 4897.118892] xhci-hcd xhci-hcd.1.auto: USB bus 2 deregistered
[ 4897.124592] xhci-hcd xhci-hcd.1.auto: remove, state 4
[ 4897.129725] usb usb1: USB disconnect, device number 1
[ 4897.376121] xhci-hcd xhci-hcd.1.auto: USB bus 1 deregistered
[ 4897.384103] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[ 4897.389712] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 1
[ 4897.399148] xhci-hcd xhci-hcd.1.auto: hcc params 0x200073c9 hci version 0x100 quirks 0x0000002000010010
[ 4897.408690] xhci-hcd xhci-hcd.1.auto: irq 515, io mem 0x06010000
[ 4897.414904] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[ 4897.423267] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4897.430507] usb usb1: Product: xHCI Host Controller
[ 4897.435485] usb usb1: Manufacturer: Linux 5.10.100-g7a7a3af903 xhci-hcd
[ 4897.442109] usb usb1: SerialNumber: xhci-hcd.1.auto
[ 4897.447367] hub 1-0:1.0: USB hub found
[ 4897.451324] hub 1-0:1.0: 1 port detected
[ 4897.455986] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[ 4897.461598] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 2
[ 4897.469291] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0 SuperSpeed
[ 4897.476077] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[ 4897.484325] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10
[ 4897.492588] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4897.499948] usb usb2: Product: xHCI Host Controller
[ 4897.504868] usb usb2: Manufacturer: Linux 5.10.100-g7a7a3af903 xhci-hcd
[ 4897.511591] usb usb2: SerialNumber: xhci-hcd.1.auto
[ 4897.517036] hub 2-0:1.0: USB hub found
[ 4897.520881] hub 2-0:1.0: 1 port detected
[ 4899.808319] usb 1-1: new high-speed USB device number 2 using xhci-hcd
[ 4899.961428] usb 1-1: New USB device found, idVendor=04e8, idProduct=6860, bcdDevice= 5.04
[ 4899.969602] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 4899.977262] usb 1-1: Product: SAMSUNG_Android
[ 4899.981844] usb 1-1: Manufacturer: SAMSUNG
[ 4899.986290] usb 1-1: SerialNumber: R3CR10ZED1N
[ 4900.077530] cdc_acm 1-1:1.1: ttyACM0: USB ACM device
[ 4900.087898] usbcore: registered new interface driver cdc_acm
[ 4900.094434] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters

root@j7200-evm:~#
root@j7200-evm:~#
root@j7200-evm:~# lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 04e8:6860 Samsung Electronics Co., Ltd Galaxy series, misc. (MTP mode)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
root@j7200-evm:~# lsusb -d04e8:6860 -v | grep -i "usb"
can't get debug descriptor: Resource temporarily unavailable
  bcdUSB               2.10

请检查问题。

此致、  

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