大家好：
我有一块AM572X IDK开发板，想从TFTP加载，引导后挂接NFS文件系统，目前下载是成功的，但是当运行到Starting kernel....时死机；
请大佬们帮忙看看，谢谢；
U-Boot 2018.01-g313dcd69c2 (Dec 16 2018 - 10:41:59 +0000)
CPU : DRA752-GP ES2.0
Model: TI AM5728 IDK
Board: AM572x IDK REV 1.3B
DRAM: 2 GiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
GUID Partition Table Header signature is wrong: 0x0 != 0x5452415020494645
part_get_info_efi: *** ERROR: Invalid GPT ***
GUID Partition Table Header signature is wrong: 0x0 != 0x5452415020494645
part_get_info_efi: *** ERROR: Invalid Backup GPT ***
SCSI: SATA link 0 timeout.
AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
flags: 64bit ncq stag pm led clo only pmp pio slum part ccc apst
scanning bus for devices...
Found 0 device(s).
Net: eth0: ethernet@48484000
Hit any key to stop autoboot: 0
booting from network...
link up on port 0, speed 100, full duplex
Using ethernet@48484000 device
TFTP from server 192.168.0.114; our IP address is 192.168.0.118
Filename 'zImage-am57xx-evm.bin'.
Load address: 0x82000000
Loading: #################################################################
#################################################################
#################################################################
#################################################################
###############
1.8 MiB/s
done
Bytes transferred = 4026880 (3d7200 hex)
link up on port 0, speed 100, full duplex
Using ethernet@48484000 device
TFTP from server 192.168.0.114; our IP address is 192.168.0.118
Filename 'am572x-idk.dtb'.
Load address: 0x88000000
Loading: #######
1.7 MiB/s
done
Bytes transferred = 101271 (18b97 hex)
Starting kernel ...
=> printenv
arch=arm
args_mmc=run finduuid;setenv bootargs console=${console} ${optargs} root=PARTUUID=${uuid} rw rootfstype=${mmcrootfst}
autoload=no
baudrate=115200
board=am57xx
board_name=am572x_idk
board_rev=1.3B
board_serial=38174P470111
boot_fdt=try
boot_fit=0
bootargs=androidboot.serialno=${serial#} console=ttyS2,115200 androidboot.console=ttyS2 androidboot.hardware=am57xevd
bootcmd=run nfsboot
bootdelay=2
bootdir=/boot
bootenvfile=uEnv.txt
bootfile=zImage-am57xx-evm.bin
bootm_size=0x10000000
bootpart=0:2
bootscript=echo Running bootscript from mmc${mmcdev} ...; source ${loadaddr}
console=ttyO2,115200n8
cpu=armv7
dfu_alt_info_emmc=rawemmc raw 0 3751936;boot part 1 1;rootfs part 1 2;MLO fat 1 1;MLO.raw raw 0x100 0x200;u-boot.img1
dfu_alt_info_mmc=boot part 0 1;rootfs part 0 2;MLO fat 0 1;MLO.raw raw 0x100 0x200;u-boot.img.raw raw 0x300 0x1000;u1
dfu_alt_info_ram=kernel ram 0x80200000 0x4000000;fdt ram 0x80f80000 0x80000;ramdisk ram 0x81000000 0x4000000
dfu_bufsiz=0x10000
dofastboot=0
emmc_android_boot=echo Trying to boot Android from eMMC ...; run update_to_fit; setenv eval_bootargs setenv bootargs;
emmc_linux_boot=echo Trying to boot Linux from eMMC ...; setenv mmcdev 1; setenv bootpart 1:2; setenv mmcroot /dev/m;
envboot=mmc dev ${mmcdev}; if mmc rescan; then echo SD/MMC found on device ${mmcdev};if run loadbootscript; then run;
eth2addr=70:ff:76:1c:17:97
eth3addr=70:ff:76:1c:17:98
eth4addr=70:ff:76:1c:17:99
eth5addr=70:ff:76:1c:17:9a
eth6addr=70:ff:76:1c:17:9b
eth7addr=70:ff:76:1c:17:9c
ethact=ethernet@48484000
ethaddr=7c:38:66:7b:23:4a
fastboot.board_rev=1.3B
fastboot.cpu=DRA752
fastboot.secure=GP
fdt_addr_r=0x88000000
fdtaddr=0x88000000
fdtcontroladdr=fdf15138
fdtfile=am572x-idk.dtb
fileaddr=88000000
filesize=18b97
findfdt=if test $board_name = omap5_uevm; then setenv fdtfile omap5-uevm.dtb; fi; if test $board_name = dra7xx; then
finduuid=part uuid mmc ${bootpart} uuid
fit_bootfile=fitImage
fit_loadaddr=0x87000000
gatewayip=192.168.0.1
getuenv=mmc dev ${mmcdev}; if mmc rescan; then if run loadbootenv; then run importbootenv; fi; fi;
idk_lcd=no
importbootenv=echo Importing environment from mmc${mmcdev} ...; env import -t ${loadaddr} ${filesize}
ip_method=dhcp
ipaddr=192.168.0.118
kernel_addr_r=0x82000000
loadaddr=0x82000000
loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenvfile}
loadbootscript=load mmc ${mmcdev} ${loadaddr} boot.scr
loadfdt=load ${devtype} ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}
loadfit=run args_mmc; bootm ${loadaddr}#${fdtfile};
loadimage=load ${devtype} ${bootpart} ${loadaddr} ${bootdir}/${bootfile}
mmcboot=mmc dev ${mmcdev}; setenv devnum ${mmcdev}; setenv devtype mmc; if mmc rescan; then echo SD/MMC found on dev;
mmcdev=0
mmcloados=run args_mmc; if test ${boot_fdt} = yes || test ${boot_fdt} = try; then if run loadfdt; then bootz ${loada;
mmcrootfstype=ext4 rootwait
netargs=setenv bootargs console=${console} ${optargs} root=/dev/nfs nfsroot=${serverip}:${rootpath},${nfsopts} rw ipp
netboot=echo Booting from network ...; setenv autoload no; dhcp; run netloadimage; run netloadfdt; run netargs; boot}
netloadfdt=tftp ${fdtaddr} ${fdtfile}
netloadimage=tftp ${loadaddr} ${bootfile}
netmask=255.255.255.0
nfsargs=console=${console} ${optargs} root=/dev/nfs nfsroot=${serverip}:${rootpath}
nfsboot=echo booting from network...; run findfdt;setenv autoload no;run netloadimage; run netloadfdt; run nfsargs; ;
nfsopts=nolock,v3,tcp,rsize=4096,wsize=4096
partitions=uuid_disk=${uuid_gpt_disk};name=bootloader,start=384K,size=1792K,uuid=${uuid_gpt_bootloader};name=rootfs,}
partitions_android=uuid_disk=${uuid_gpt_disk};name=xloader,start=128K,size=256K,uuid=${uuid_gpt_xloader};name=bootlo}
pxefile_addr_r=0x80100000
ramdisk_addr_r=0x88080000
rdaddr=0x88080000
rootpath=/home/andi/am-tftp-nfs/nfs_target
scriptaddr=0x80000000
scsidevs=0
serial#=0200400e49280122
serverip=192.168.0.114
soc=omap5
static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off
stderr=serial@48020000
stdin=serial@48020000
stdout=serial@48020000
update_to_fit=setenv loadaddr ${fit_loadaddr}; setenv bootfile ${fit_bootfile}
usbtty=cdc_acm
vendor=ti
ver=U-Boot 2018.01-g313dcd69c2 (Dec 16 2018 - 10:41:59 +0000)
vram=16M
Environmen
请帮忙看下，问题在哪?谢谢；