BOOT内核引导时出现random: nonblocking pool is initialized，求大神帮忙

最近使用的zedboard板子进行移植，自己借助于官网的资料，自己制作了内核引导文件，添加了自己的外设，可是在SD卡启动时打印出错random: nonblocking pool is initialized ，adv7511: probe of 0-0039 failed with error -110，具体如下：



U-Boot 2013.10 (Dec 24 2015 - 11:12:36)

Memory: ECC disabled
DRAM: 512 MiB
MMC: zynq_sdhci: 0
SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64 KiB, total 32
MiB
*** Warning - bad CRC, using default environment

In: serial
Out: serial
Err: serial
Net: Gem.e000b000
Hit any key to stop autoboot: 0
Device: zynq_sdhci
Manufacturer ID: 41
OEM: 3432
Name: SD8GB
Tran Speed: 50000000
Rd Block Len: 512
SD version 2.0
High Capacity: Yes
Capacity: 7.4 GiB
Bus Width: 4-bit
reading uEnv.txt
380 bytes read in 10 ms (37.1 KiB/s)
Loaded environment from uEnv.txt
Importing environment from SD ...
Running uenvcmd ...
Copying Linux from SD to RAM...
reading uImage
3203024 bytes read in 294 ms (10.4 MiB/s)
reading devicetree.dtb
17746 bytes read in 18 ms (961.9 KiB/s)
reading uramdisk.image.gz
5310018 bytes read in 475 ms (10.7 MiB/s)
## Booting kernel from Legacy Image at 03000000 ...
Image Name: Linux-3.17.0-gbe8a237
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3202960 Bytes = 3.1 MiB
Load Address: 00008000
Entry Point: 00008000
Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 02000000 ...
Image Name:
Image Type: ARM Linux RAMDisk Image (gzip compressed)
Data Size: 5309954 Bytes = 5.1 MiB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
## Flattened Device Tree blob at 02a00000
Booting using the fdt blob at 0x2a00000
Loading Kernel Image ... OK
Loading Ramdisk to 1f641000, end 1fb51602 ... OK
Loading Device Tree to 1f639000, end 1f640551 ... OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
Booting Linux on physical CPU 0x0
Linux version 3.17.0-gbe8a237 (buildserver-cj1@buildserver-cj1) (gcc version 4.8
.3 20140320 (prerelease) (Sourcery CodeBench Lite 2014.05-29) ) #1 SMP PREEMPT M
on Apr 20 18:30:28 EEST 2015
CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine model: Xilinx Zynq ZED
bootconsole [earlycon0] enabled
cma: Reserved 128 MiB at 17400000
Memory policy: Data cache writealloc
PERCPU: Embedded 7 pages/cpu @dfb99000 s8064 r8192 d12416 u32768
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048
Kernel command line: console=ttyPS0,115200 root=/dev/mmcblk0p2 rw earlyprintk ro
otfstype=ext4 rootwait
PID hash table entries: 2048 (order: 1, 8192 bytes)
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 376612K/524288K available (4249K kernel code, 242K rwdata, 1644K rodata,
199K init, 134K bss, 147676K reserved, 0K highmem)
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xffe00000 (2048 kB)
vmalloc : 0xe0800000 - 0xff000000 ( 488 MB)
lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc05c9790 (5894 kB)
.init : 0xc05ca000 - 0xc05fbf80 ( 200 kB)
.data : 0xc05fc000 - 0xc0638a20 ( 243 kB)
.bss : 0xc0638a20 - 0xc065a4a0 ( 135 kB)
Preemptible hierarchical RCU implementation.
Dump stacks of tasks blocking RCU-preempt GP.
RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
NR_IRQS:16 nr_irqs:16 16
L2C: platform provided aux values match the hardware, so have no effect. Please
remove them.
L2C-310 erratum 769419 enabled
L2C-310 enabling early BRESP for Cortex-A9
L2C-310 full line of zeros enabled for Cortex-A9
L2C-310 ID prefetch enabled, offset 1 lines
L2C-310 dynamic clock gating enabled, standby mode enabled
L2C-310 cache controller enabled, 8 ways, 512 kB
L2C-310: CACHE_ID 0x410000c8, AUX_CTRL 0x76360001
slcr mapped to e0804000
zynq_clock_init: clkc starts at e0804100
Zynq clock init
sched_clock: 16 bits at 54kHz, resolution 18432ns, wraps every 1207951633ns
timer #0 at e0806000, irq=43
Console: colour dummy device 80x30
Calibrating delay loop... 1332.01 BogoMIPS (lpj=6660096)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x405148 - 0x4051a0
CPU1: Booted secondary processor
CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
Brought up 2 CPUs
SMP: Total of 2 processors activated.
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
regulator-dummy: no parameters
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor ladder
cpuidle: using governor menu
hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
hw-breakpoint: maximum watchpoint size is 4 bytes.
zynq-ocm f800c000.ps7-ocm: ZYNQ OCM pool: 256 KiB @ 0xe0880000
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
media: Linux media interface: v0.10
Linux video capture interface: v2.00
EDAC MC: Ver: 3.0.0
Advanced Linux Sound Architecture Driver Initialized.
Switched to clocksource ttc_clocksource
NET: Registered protocol family 2
TCP established hash table entries: 4096 (order: 2, 16384 bytes)
TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP: reno registered
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
Trying to unpack rootfs image as initramfs...
rootfs image is not initramfs (no cpio magic); looks like an initrd
Freeing initrd memory: 5184K (df641000 - dfb51000)
hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
futex hash table entries: 512 (order: 3, 32768 bytes)
msgmni has been set to 1001
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
dma-pl330 f8003000.ps7-dma: Loaded driver for PL330 DMAC-2364208
dma-pl330 f8003000.ps7-dma: DBUFF-128x8bytes Num_Chans-8 Num_Peri-4 Num_Even
ts-16
xuartps e0001000.uart: clock name 'aper_clk' is deprecated.
xuartps e0001000.uart: clock name 'ref_clk' is deprecated.
e0001000.uart: ttyPS0 at MMIO 0xe0001000 (irq = 82, base_baud = 3125000) is a xu
artps
郼onsole [ttyPS0] enabled
console [ttyPS0] enabled
bootconsole [earlycon0] disabled
bootconsole [earlycon0] disabled
xdevcfg f8007000.devcfg: ioremap 0xf8007000 to e081a000
[drm] Initialized drm 1.1.0 20060810
drivers/gpu/drm/adi_axi_hdmi/axi_hdmi_drv.c:axi_hdmi_platform_probe[175]
platform 70e00000.axi_hdmi: Driver axi-hdmi requests probe deferral
brd: module loaded
loop: module loaded
libphy: XEMACPS mii bus: probed
xemacps e000b000.eth: pdev->id -1, baseaddr 0xe000b000, irq 54
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ULPI transceiver vendor/product ID 0x0451/0x1507
Found TI TUSB1210 ULPI transceiver.
ULPI integrity check: passed.
zynq-ehci zynq-ehci.0: Xilinx Zynq USB EHCI Host Controller
zynq-ehci zynq-ehci.0: new USB bus registered, assigned bus number 1
zynq-ehci zynq-ehci.0: irq 53, io mem 0x00000000
zynq-ehci zynq-ehci.0: USB 2.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
usbcore: registered new interface driver usb-storage
usbcore: registered new interface driver usbserial
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial support registered for generic
usbcore: registered new interface driver ftdi_sio
usbserial: USB Serial support registered for FTDI USB Serial Device
mousedev: PS/2 mouse device common for all mice
i2c /dev entries driver
random: nonblocking pool is initialized
adv7511: probe of 0-0039 failed with error -110


不知道哪儿出错了，求大神帮帮忙。。。