s5p6818重启卡住，uboot启动不了

执行mmc erase 0x1000 0x10000 后开发板重启卡住，该怎么解决，log如下：

请大家帮下忙

working to aarch32
waiting for pll change..

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Second Boot by Nexell Co. : Ver0.3.6 - Built on Jun 12 2015 20:06:08
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NSIH : Ver0.0.xx

DDR3 POR Init Start 0
phy init
Lock value = 187
GATE CYC = 0x00000492
GATE CODE = 0x00000000
Read DQ = 0x08080808
Write DQ = 0x08080808

DDR3 Init Done!
CCI Init!
Wakeup CPU Wakeup CPU 1234567
CPU Wakeup done! WFI is expected.
CPU0 is Master!

Loading from sdmmc...
Image Loading Done!
Launch to 0x0000000043C00000

U-Boot 2014.07 (Jul 28 2016 - 19:14:02)

PLL : [0] = 800000000, [1] = 800000000, [2] = 780000000, [3] = 800000000
(0) PLL1: CPU FCLK = 800000000, HCLK = 200000000 (G0)
(7) PLL1: CPU FCLK = 800000000, HCLK = 200000000 (G1)
(2) PLL3: MEM FCLK = 800000000, DCLK = 800000000, BCLK = 400000000, PCLK = 200000000
(1) PLL0: BUS BCLK = 400000000, PCLK = 200000000
(8) PLL0: CCI4 BCLK = 400000000, PCLK = 200000000
(3) PLL0: G3D BCLK = 400000000
(4) PLL0: CODA BCLK = 400000000, PCLK = 200000000
(5) PLL0: DISP BCLK = 400000000, PCLK = 200000000
(6) PLL0: HDMI PCLK = 133333333
I2C: ready
DRAM: 1 GiB
Heap = 0x44000000~0x46000000
Code = 0x43c00000~0x43c86188
GLD = 0x43bffeb8
GLBD = 0x43bffe68
SP = 0x43bffe68,0x43bffe48(CURR)
PC = 0x43c0667c
TAGS = 0x40000100
PAGE = 0x43c90000~0x43c9c000
MACH = [4330]
VER = 0
BOARD= [x6818]
MMC: NXP DWMMC: 0, NXP DWMMC: 1, NXP DWMMC: 2
In: serial
Out: serial
Err: serial
## DCDC_MODE(0x80): DCDC1[PFM], DCDC2[PFM], DCDC3[PFM], DCDC4[PWM], DCDC5[PWM]
## STATUS(0x00) : 0xe5 0x10
## IRQ(0x48) : 0x00 0x00 0x00 0x00 0x00
## CHG_TYPE : ADP
## BAT_VOL : 0mV
## BAT_CAP : 100%