如下为串口打印信息
U-Boot 2010.12 (Mar 22 2016 - 12:44:19) for SMDK4412
CPU: EXYNOS4412 [Samsung SOC on SMP Platform Base on ARM CortexA9]
APLL = 1400MHz, MPLL = 800MHz
DRAM: 1023 MiB
vdd_arm: 1.2
vdd_int: 1.1
vdd_mif: 1.1
BL1 version: N/A (TrustZone Enabled BSP)
Checking Boot Mode ... SDMMC
REVISION: 1.1
MMC Device 0: 3841 MB
unrecognised EXT_CSD structure version 7
unrecognised EXT_CSD structure version 7
MMC Device 1: 1024 MB
MMC Device 2 not found
Net: No ethernet found.
Hit any key to stop autoboot: 0
reading kernel..device 0 Start 1057, Count 10240
MMC read: dev # 0, block # 1057, count 10240 ... 10240 blocks read: OK
completed
reading RFS..device 0 Count 11297, Start 2048
MMC read: dev # 0, block # 11297, count 2048 ... 2048 blocks read: OK
completed
Boot with zImage
Using machid 0x1200 from environment
Wrong Ramdisk Image Format
[err] boot_get_ramdisk
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
Booting Linux on physical CPU 0
Initializing cgroup subsys cpu
Linux version 3.5.0 (root@chuanqingsong) (gcc version 4.5.1 (ctng-1.8.1-FA) ) #4 SMP PREEMPT Tue Mar 22 14:54:25 CST 2016
CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=10c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine: SMDK4412
cma: CMA: reserved 32 MiB at 6d800000
Memory policy: ECC disabled, Data cache writealloc
到这里就不动了，求大神指导下
