Now, we used a usb3.0 device, but not recongnition at once after system boot .
Their must wait the kernel print [regulator can2-stby: disabling ] , then it can be recognized.
blow is dmesg:
[ 33.845412] can1-stby: disabling
[ 33.848655] can2-stby: disabling
[ 33.851928] rg440-en: disabling
[ 33.982914] usb usb2: usb wakeup-resume
[ 33.986795] usb usb2: usb auto-resume
[ 33.990507] hub 2-0:1.0: hub_resume
[ 33.994082] usb usb2-port1: status 0203 change 0001
[ 34.105434] hub 2-0:1.0: state 7 ports 1 chg 0002 evt 0000
[ 34.110962] hub 2-0:1.0: hub_event hdev->maxchild = 1
[ 34.116059] port_event start.........
[ 34.119823] port_event connect_change = 1 ................
[ 34.125352] usb usb2-port1: status 0203, change 0000, 5.0 Gb/s
[ 34.257529] usb 2-1: new SuperSpeed Gen 1 USB device number 2 using cdns-usb3
[ 34.282502] usb 2-1: udev 2, busnum 2, minor = 129
[ 34.288818] usb-storage 2-1:1.0: USB Mass Storage device detected
[ 34.301491] scsi host0: usb-storage 2-1:1.0
[ 35.355956] scsi 0:0:0:0: Direct-Access Thinklife SSD ST 3A0 PQ: 0 ANSI: 6
[ 35.365051] sd 0:0:0:0: [sda] 500118192 512-byte logical blocks: (256 GB/238 GiB)
[ 35.374972] sd 0:0:0:0: [sda] Write Protect is off
[ 35.379790] sd 0:0:0:0: [sda] Mode Sense: 17 00 10 00
[ 35.387184] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA
[ 35.429113] sd 0:0:0:0: [sda] Attached SCSI disk
[ 36.110980] EXT4-fs (sda): mounting ext3 file system using the ext4 subsystem
[ 36.209979] EXT4-fs (sda): mounted filesystem with ordered data mode. Opts: (null)
we also try to open usb3.0 device power in uboot, but the issue still exist.
what kind of question is that?
