Hi3520v200加载SIM7600问题

按照SIM7600资料在3520SDK上添加驱动，启动之后发现USB串口报错，是在找不到原因外加对linux驱动又不熟，大神们帮忙看看是哪出的问题，感激不尽。启动信息如下：
U-Boot 2010.06 (Sep 26 2018 - 23:34:32)

Check spi flash controller v350... Found
Spi(cs1) ID: 0xEF 0x40 0x17 0x00 0x00 0x00
Spi(cs1): Block:64KB Chip:8MB Name:"W25Q64FV"
In:    serial
Out:   serial
Err:   serial
Hit any key to stop autoboot:  0
8192 KiB hi_sfc at 0:0 is now current device

## Booting kernel from Legacy Image at 82000000 ...
   Image Name:   Linux-3.0.8
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    1598360 Bytes = 1.5 MiB
   Load Address: 80008000
   Entry Point:  80008000
   Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
Linux version 3.0.8 (root@ubuntu) (gcc version 4.4.1 (Hisilicon_v100(gcc4.4-290+uclibc_0.9.32.1+eabi+linuxpthread)) ) #9 Sat Sep 29 18:12:43 PDT 2018
CPU: ARMv7 Processor [414fc091] revision 1 (ARMv7), cr=10c53c7f
CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine: hi3520d
Memory policy: ECC disabled, Data cache writeback
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 20828
Kernel command line: mem=82M console=ttyAMA0,115200 root=/dev/mtdblock2 rootfstype=jffs2 mtdparts=hi_sfc:1M(boot),2M(kernel),5M(rootfs)
PID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 82MB = 82MB total
Memory: 78856k/78856k available, 5112k reserved, 0K highmem
Virtual kernel memory layout:
    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
    DMA     : 0xffc00000 - 0xffe00000   (   2 MB)
    vmalloc : 0xc5800000 - 0xfe000000   ( 904 MB)
    lowmem  : 0xc0000000 - 0xc5200000   (  82 MB)
    modules : 0xbf000000 - 0xc0000000   (  16 MB)
      .init : 0xc0008000 - 0xc0022000   ( 104 kB)
      .text : 0xc0022000 - 0xc03c7000   (3732 kB)
      .data : 0xc03c8000 - 0xc03e1c20   ( 104 kB)
       .bss : 0xc03e1c44 - 0xc0431a28   ( 320 kB)
SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
NR_IRQS:128 nr_irqs:128 128
sched_clock: 32 bits at 82MHz, resolution 12ns, wraps every 52060ms
Calibrating delay loop... 1318.91 BogoMIPS (lpj=6594560)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
NET: Registered protocol family 16
Serial: AMBA PL011 UART driver
uart:0: ttyAMA0 at MMIO 0x20080000 (irq = 40) is a PL011 rev2
console [ttyAMA0] enabled
uart:1: ttyAMA1 at MMIO 0x20090000 (irq = 41) is a PL011 rev2
bio: create slab at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Switching to clocksource timer1
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
L2cache cache controller enabled
squashfs: version 4.0 (2009/01/31) Phillip Lougher
JFFS2 version 2.2. (NAND) 漏 2001-2006 Red Hat, Inc.
fuse init (API version 7.16)
msgmni has been set to 154
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
io scheduler noop registered
io scheduler deadline registered (default)
io scheduler cfq registered
brd: module loaded
ahci: SSS flag set, parallel bus scan disabled
ahci ahci.0: AHCI 0001.0200 32 slots 2 ports 3 Gbps 0x3 impl platform mode
ahci ahci.0: flags: ncq sntf stag pm led clo only pmp pio slum part ccc sxs boh
scsi0 : ahci_platform
scsi1 : ahci_platform
ata1: SATA max UDMA/133 mmio [mem 0x10080000-0x1008ffff] port 0x100 irq 52
ata2: SATA max UDMA/133 mmio [mem 0x10080000-0x1008ffff] port 0x180 irq 52
Spi id table Version 1.22
Spi(cs1) ID: 0xEF 0x40 0x17 0x00 0x00 0x00
SPI FLASH start_up_mode is 3 Bytes
Spi(cs1):
Block:64KB
Chip:8MB
Name:"W25Q64FV"
spi size: 8MB
chip num: 1
3 cmdlinepart partitions found on MTD device hi_sfc
Creating 3 MTD partitions on "hi_sfc":
0x000000000000-0x000000100000 : "boot"
0x000000100000-0x000000300000 : "kernel"
0x000000300000-0x000000800000 : "rootfs"
Fixed MDIO Bus: probed
ata1: SATA link down (SStatus 0 SControl 300)
himii: probed
ata2: SATA link down (SStatus 0 SControl 300)
Invalid HW-MAC Address: 00:00:00:00:00:00
Set Random MAC address: 46:F4:64:A9:3C:B9
usbcore: registered new interface driver asix
usbcore: registered new interface driver cdc_ether
usbcore: registered new interface driver net1080
usbcore: registered new interface driver cdc_subset
usbcore: registered new interface driver zaurus
usbcore: registered new interface driver simcom_wwan
usbcore: registered new interface driver sierra_net
cdc_ncm: 04-Aug-2011
usbcore: registered new interface driver cdc_ncm
usbmon: debugfs is not available
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
hiusb-ehci hiusb-ehci.0: HIUSB EHCI
hiusb-ehci hiusb-ehci.0: new USB bus registered, assigned bus number 1
hiusb-ehci hiusb-ehci.0: irq 53, io mem 0x100b0000
hiusb-ehci hiusb-ehci.0: USB 0.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
hiusb-ohci hiusb-ohci.0: HIUSB OHCI
hiusb-ohci hiusb-ohci.0: new USB bus registered, assigned bus number 2
hiusb-ohci hiusb-ohci.0: irq 54, io mem 0x100a0000
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usbcore: registered new interface driver usbserial
USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial Driver core
USB Serial support registered for GSM modem (1-port)
usbcore: registered new interface driver option
option: v0.7.2:USB Driver for GSM modems
mousedev: PS/2 mouse device common for all mice
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
TCP cubic registered
NET: Registered protocol family 17
Registering the dns_resolver key type
registered taskstats version 1
VFS: Mounted root (jffs2 filesystem) on device 31:2.
Freeing init memory: 104K

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           / __   /  -  _ ___
          / /  / /  / /
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___________\___\__________________

[RCS]: /etc/init.d/S00devs
[RCS]: /etc/init.d/S01udev
Jan  1 00:00:01 udevd[384]: main: error opening /dev/nuludevd (384): /proc/384/oom_adj is deprecated, please use /proc/384/oom_score_adj instead.
l: No such file or directory
[RCS]: /etc/init.d/S80network
Auto login as root ...
Jan  1 00:00:02 login[389]: root login on 'ttyS000'
Welcome to HiLinux.
None of nfsroot found in cmdline.
# usb 1-2: new high speed USB device number 2 using hiusb-ehci
simcom_wwan: probe of 1-2:1.0 failed with error -22
option 1-2:1.0: GSM modem (1-port) converter detected
usb 1-2: GSM modem (1-port) converter now attached to ttyUSB0
simcom_wwan: probe of 1-2:1.1 failed with error -22
option 1-2:1.1: GSM modem (1-port) converter detected
usb 1-2: GSM modem (1-port) converter now attached to ttyUSB1
simcom_wwan: probe of 1-2:1.2 failed with error -22
option 1-2:1.2: GSM modem (1-port) converter detected
usb 1-2: GSM modem (1-port) converter now attached to ttyUSB2
simcom_wwan: probe of 1-2:1.3 failed with error -22
option 1-2:1.3: GSM modem (1-port) converter detected
usb 1-2: GSM modem (1-port) converter now attached to ttyUSB3
simcom_wwan: probe of 1-2:1.4 failed with error -22
option 1-2:1.4: GSM modem (1-port) converter detected
usb 1-2: GSM modem (1-port) converter now attached to ttyUSB4
simcom usbnet bind here
simcom_wwan 1-2:1.5: wwan0: register 'simcom_wwan' at usb-hiusb-ehci-2, SIMCOM wwan/QMI device, da:22:07:35:79:b7