CPU：am3354BZCZA100； EMMC烧写 失败 。

U-Boot SPL 2014.04-rc2 (Jul 13 2015 – 10:33:39)
i2c_read: error waiting for addr ACK (status=0x116)
PCA9559_reg_read: 0x06 failed
Using default environment

usb_ether
using musb-hdrc, OUT ep1out IN ep1in STATUS ep2in
MAC d0:39:72:8a:36:57
HOST MAC de:ad:be:af:00:00
RNDIS ready
musb-hdrc: peripheral reset irq lost!
high speed config #2: 2 mA, Ethernet Gadget, using RNDIS
USB RNDIS network up!
BOOTP broadcast 1
BOOTP broadcast 2
BOOTP broadcast 3
BOOTP broadcast 4
BOOTP broadcast 5
Using usb_ether device
TFTP from server 192.168.100.1; our IP address is 192.168.100.2
Filename 'u-boot-restore.img'.
Load address: 0x807fffc0
Loading: ######################
512.7 KiB/s
done
Bytes transferred = 309260 (4b80c hex)

U-Boot 2014.04-rc2 (Jul 13 2015 – 10:33:39)

I2C: ready
DRAM: 512 MiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Using default environment

Display not initialized
i2c_read: error waiting for addr ACK (status=0x116)
PCA9559_reg_read: 0x06 failed
Net: <ethaddr> not set. Validating first E-fuse MAC
Could not get PHY for cpsw: addr 4
cpsw, usb_ether
Hit any key to stop autoboot: 0Booting from TFTP over USB RNDIS …
using musb-hdrc, OUT ep1out IN ep1in STATUS ep2in
MAC d0:39:72:8a:36:59
HOST MAC de:ad:be:af:00:00
RNDIS ready
musb-hdrc: peripheral reset irq lost!
high speed config #2: 2 mA, Ethernet Gadget, using RNDIS
USB RNDIS network up!
BOOTP broadcast 1
BOOTP broadcast 2
BOOTP broadcast 3
BOOTP broadcast 4
BOOTP broadcast 5
DHCP client bound to address 192.168.100.3
using musb-hdrc, OUT ep1out IN ep1in STATUS ep2in
MAC d0:39:72:8a:36:59
HOST MAC de:ad:be:af:00:00
RNDIS ready
high speed config #2: 2 mA, Ethernet Gadget, using RNDIS
USB RNDIS network up!
Using usb_ether device
TFTP from server 192.168.100.1; our IP address is 192.168.100.3
Filename 'uImage'.
Load address: 0x81000000
Loading: T #################################################################
#################################################################
#######CCCCCCCC

//。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。

以上现象不断重启 。 

请帮忙解决，谢谢。 

Yaoming Qin：

请看看 http://www.deyisupport.com/question_answer/dsp_arm/sitara_arm/f/25/t/73278.aspx

Jian Zhou：

回复 Yaoming Qin:

用的是BBB的板子还是自己的板子？