按照常规的内核配置，usb的初始化musb,phy都能初始化完也没有明显错误，但是还是没有啥反应，把id脚配置上拉下拉都无效
配上启动信息：问题可能会出在哪里呢，求助大侠们
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.15.0-rc8-licheepi-nano (mengh@ubuntu) (gcc version 5.4.1 20170404 (Linaro GCC 5.4-2017.05)) #4 Wed Jul 18 23:08
[ 0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
[ 0.000000] CPU: VIVT data cache, VIVT instruction cache
[ 0.000000] OF: fdt: Machine model: Lichee Pi Nano
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] random: fast init done
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 16256
[ 0.000000] Kernel command line: console=tty0 console=ttyS0,115200 panic=5 rootwait root=/dev/mmcblk0p2 rw
[ 0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Memory: 55176K/65536K available (6144K kernel code, 235K rwdata, 1380K rodata, 1024K init, 244K bss, 10360K reserved, 0K cma-r)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
[ 0.000000] vmalloc : 0xc4800000 - 0xff800000 ( 944 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xc4000000 ( 64 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
[ 0.000000] .text : 0x(ptrval) - 0x(ptrval) (7136 kB)
[ 0.000000] .init : 0x(ptrval) - 0x(ptrval) (1024 kB)
[ 0.000000] .data : 0x(ptrval) - 0x(ptrval) ( 236 kB)
[ 0.000000] .bss : 0x(ptrval) - 0x(ptrval) ( 245 kB)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000041] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000094] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.000499] Console: colour dummy device 80x30
[ 0.001044] console [tty0] enabled
[ 0.001131] Calibrating delay loop... 358.80 BogoMIPS (lpj=1794048)
[ 0.050259] pid_max: default: 32768 minimum: 301
[ 0.050535] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.050612] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.051828] CPU: Testing write buffer coherency: ok
[ 0.053455] Setting up static identity map for 0x80100000 - 0x80100058
[ 0.055455] devtmpfs: initialized
[ 0.059926] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.060062] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 0.060446] pinctrl core: initialized pinctrl subsystem
[ 0.062182] NET: Registered protocol family 16
[ 0.063420] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.064887] cpuidle: using governor menu
[ 0.083309] SCSI subsystem initialized
[ 0.083695] usbcore: registered new interface driver usbfs
[ 0.083880] usbcore: registered new interface driver hub
[ 0.084112] usbcore: registered new device driver usb
[ 0.084479] pps_core: LinuxPPS API ver. 1 registered
[ 0.084550] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.084658] PTP clock support registered
[ 0.085091] Advanced Linux Sound Architecture Driver Initialized.
[ 0.086354] clocksource: Switched to clocksource timer
[ 0.109709] NET: Registered protocol family 2
[ 0.110868] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.110996] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.111067] TCP: Hash tables configured (established 1024 bind 1024)
[ 0.111368] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.111456] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.111908] NET: Registered protocol family 1
[ 0.113083] RPC: Registered named UNIX socket transport module.
[ 0.113181] RPC: Registered udp transport module.
[ 0.113224] RPC: Registered tcp transport module.
[ 0.113256] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.115025] NetWinder Floating Point Emulator V0.97 (double precision)
[ 0.116811] Initialise system trusted keyrings
[ 0.117389] workingset: timestamp_bits=30 max_order=14 bucket_order=0
[ 0.130096] NFS: Registering the id_resolver key type
[ 0.130256] Key type id_resolver registered
[ 0.130304] Key type id_legacy registered
[ 0.141150] Key type asymmetric registered
[ 0.141250] Asymmetric key parser 'x509' registered
[ 0.141472] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[ 0.141552] io scheduler noop registered
[ 0.141591] io scheduler deadline registered
[ 0.142235] io scheduler cfq registered (default)
[ 0.142325] io scheduler mq-deadline registered
[ 0.142368] io scheduler kyber registered
[ 0.143995] ******************usb phy probe finish!
[ 0.151086] suniv-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
[ 0.301238] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[ 0.307021] console [ttyS0] disabled
[ 0.327320] 1c25000.serial: ttyS0 at MMIO 0x1c25000 (irq = 23, base_baud = 6250000) is a 16550A
[ 0.796682] console [ttyS0] enabled
[ 0.805125] panel-simple panel: panel supply power not found, using dummy regulator
[ 0.814320] SCSI Media Changer driver v0.25
[ 0.820156] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 0.826858] ehci-platform: EHCI generic platform driver
[ 0.832349] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 0.838689] ohci-platform: OHCI generic platform driver
[ 0.844279] usbcore: registered new interface driver usb-storage
[ 0.850788] ***************sunxi musb probe!
[ 0.855561] usb_phy_generic usb_phy_generic.0.auto: usb_phy_generic.0.auto supply vcc not found, using dummy regulator
[ 0.867345] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[ 0.873195] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 1
[ 0.883102] hub 1-0:1.0: USB hub found
[ 0.887165] hub 1-0:1.0: 1 port detected
[ 0.892262] ********************musb probe finish!
[ 0.897641] i2c /dev entries driver
[ 0.956479] sunxi-mmc 1c0f000.mmc: base:0xb4f298a9 irq:19
[ 0.963618] usbcore: registered new interface driver usbhid
[ 0.969375] usbhid: USB HID core driver
[ 0.987967] NET: Registered protocol family 17
[ 0.992702] Key type dns_resolver registered
[ 1.001033] Loading compiled-in X.509 certificates
[ 1.014742] sun4i-drm display-engine: bound 1e60000.display-backend (ops 0xc0739718)
[ 1.023542] sun4i-drm display-engine: bound 1c0c000.lcd-controller (ops 0xc07389fc)
[ 1.031387] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 1.038078] [drm] No driver support for vblank timestamp query.
[ 1.138981] Console: switching to colour frame buffer device 100x30
[ 1.139402] mmc0: host does not support reading read-only switch, assuming write-enable
[ 1.170700] mmc0: new high speed SDHC card at address 0001
[ 1.188817] mmcblk0: mmc0:0001 SD8GB 7.32 GiB
[ 1.204934] mmcblk0: p1 p2
[ 1.231128] sun4i-drm display-engine: fb0: frame buffer device
[ 1.246733] [drm] Initialized sun4i-drm 1.0.0 20150629 for display-engine on minor 0
[ 1.263695] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 1.287542] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 1.303215] ALSA device list:
[ 1.314502] #0: Loopback 1
[ 1.326184] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[ 1.343460] cfg80211: failed to load regulatory.db
[ 1.358964] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[ 1.414432] EXT4-fs (mmcblk0p2): recovery complete
[ 1.431441] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 1.448809] VFS: Mounted root (ext4 filesystem) on device 179:2.
[ 1.466961] devtmpfs: mounted
[ 1.485548] Freeing unused kernel memory: 1024K
[ 1.683714] EXT4-fs (mmcblk0p2): re-mounted. Opts: data=ordered
Starting logging: OK
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这些都没问题，可以正常跑系统，我单独给板子供电然后把usb空出来的，主从都不行，但内核看着又初始化到差不多了
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nano这边目前估计是通不了的，原厂bsp可以试试，不过貌似也不是官方的吧！
我也试了n种方法，就是不行，一度怀疑是usb接口问题，但用用三块nano验证之后，终于死心了，现在在测试厂家的bsp内核，看能不能搞好
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