start linux failed(fdt_initrd)

Hi, I have met a problem that the soc stopped at starting kernel ......

here is my message

U-Boot SPL 2013.01.01 (Jul 09 2015 - 09:16:54)

BOARD : Altera SOCFPGA Cyclone V Board

CLOCK: EOSC1 clock 25000 KHz

CLOCK: EOSC2 clock 25000 KHz

CLOCK: F2S_SDR_REF clock 0 KHz

CLOCK: F2S_PER_REF clock 0 KHz

CLOCK: MPU clock 800 MHz

CLOCK: DDR clock 400 MHz

CLOCK: UART clock 100000 KHz

CLOCK: MMC clock 50000 KHz

CLOCK: QSPI clock 400000 KHz

INFO : Watchdog enabled

SDRAM: Initializing MMR registers

SDRAM: Calibrating PHY

SEQ.C: Preparing to start memory calibration

SEQ.C: CALIBRATION PASSED

SDRAM: 512 MiB

ALTERA DWMMC: 0

U-Boot 2013.01.01 (Jul 09 2015 - 09:20:51)

CPU : Altera SOCFPGA Platform

BOARD : Altera SOCFPGA Cyclone V Board

I2C: ready

DRAM: 512 MiB

MMC: ALTERA DWMMC: 0

*** Warning - bad CRC, using default environment

In: serial

Out: serial

Err: serial

Skipped ethaddr assignment due to invalid EMAC address in EEPROM

Net: mii0

Warning: failed to set MAC address

Hit any key to stop autoboot: 0

reading u-boot.scr

** Unable to read file u-boot.scr **

Optional boot script not found. Continuing to boot normally

reading zImage

Invalid FAT entry

3194880 bytes read in 341 ms (8.9 MiB/s)

reading socfpga.dtb

20633 bytes read in 7 ms (2.8 MiB/s)# # Flattened Device Tree blob at 00000100

Booting using the fdt blob at 0x00000100

Loading Device Tree to 03ff7000, end 03fff098 ... OK

WARNING: could not create /chosen FDT_ERR_BADSTRUCTURE.

WARNING: could not create /memory: FDT_ERR_BADSTRUCTURE.

fdt_initrd: FDT_ERR_BADSTRUCTURE

Starting kernel ...

it seems there is something wrong with the fdt, but i know little about linux,

dose anyone have met the similar problem or can help me

thanks