AM3358自己开发的板子，在uboot下，打印出来的信息如下，这些都是什么信息？为什么会有这么多找不到
1）unimplemented
2）No daughter card present
3）Did not find a recognized configuration
4）有时候还会在显示完前两行，等几秒才会出现第三行？
U-Boot SPL 2011.09 (Jul 20 2016 - 10:14:10)
Texas Instruments Revision detection unimplemented
No daughter card present
Did not find a recognized configuration, assuming General purpose EVM in Profile 0 with Daughter board
dghtr_brd_id =1
boot_params.omap_bootdevice = 0x5
__be32_to_cpu(header->ih_magic) = 0x27051956
spl: payload image: U-Boot 2011.09 for am335x board load addr: 0x800fffc0 size: 371264
spl:Entry Point = 0x80100000
spl_image.os = 0x11
image entry point: 0x80100000
Texas Instruments Revision detection unimplemented
No daughter card present
Did not find a recognized configuration, assuming General purpose EVM in Profile 0 with Daughter board
dghtr_brd_id =1
boot_params.omap_bootdevice = 0x5
__be32_to_cpu(header->ih_magic) = 0x27051956
spl: payload image: U-Boot 2011.09 for am335x board load addr: 0x800fffc0 size: 371264
spl:Entry Point = 0x80100000
spl_image.os = 0x11
image entry point: 0x80100000
后面还有很多信息，太多没有贴出来，是可以进入uboot界面的
