А вот так реагирует на флешку
U-Boot 2011.09-svn11441 (Nov 16 2015 - 18:05:24)

CPU  @ 649.999969 MHz
DDR  @ 361.999969 MHz
AHB  @ 96.0 MHz
AXI  @ 249.999938 MHz

DRAM:  256 MiB
NAND:  UBOOT board_nand_init boot_strap_ecc_BCH=1
device_id is 0xc2f1 , size=6
row_cycle_2 = 1
Scan APDAT and PRIDAT...
Scan PartID: 11, Addr: 0x7060000, Size: 0x900000
PageStart: 57536, NumPage: 4608
Scan PartID: 14, Addr: 0x7b00000, Size: 0x500000
PageStart: 62976, NumPage: 2560
128 MiB
Bad block table found at page 65472, version 0xAC
Bad block table found at page 65408, version 0xD4
nand_read_bbt: Bad block at 0x000000700000
nand_read_bbt: Bad block at 0x0000015c0000
nand_read_bbt: Bad block at 0x0000017e0000
Bad block table written to 0x000007fe0000, version 0xD4
In:    serial
Out:   lcd
Err:   lcd

DDR CFG INFO:
CFG FILE NAME : NT72453B_TPV_20140918_1450M-test.txt
CFG TOOL VERSION : 2004
CFG DRAM SIZE : 256 MB
STBC version = 45 
BootUp State : Power=2, Status=1, Current=0, TVModel=0
Boot reason: A/C power on!!
Skipping bad block 0x00700000
nt72456_USB_Power_On!!
nt72456_panel_params_init BSPPANELPARAMS(0x000000000382074b)!
nt72456_FRC_Reset_OFF!!

logo_addr = 0x8ec00000
NAND read: device 0 offset 0x7960000, size 0x20000
 131072 bytes read: OK

Logo With = 960, Height = 540
## Booting kernel from Legacy Image at 89000000 ...
   Image Name:   Linux-3.0.33
   Created:      2015-11-16  10:06:35 UTC
   Image Type:   MIPS Linux Kernel Image (gzip compressed)
   Data Size:    1882280 Bytes = 1.8 MiB
   Load Address: 80000000
   Entry Point:  802c8bc0
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK

Starting kernel ...

Initializing cgroup subsys cpu
Linux version 3.0.33 (root@oabuild22) (gcc version 4.6.3 (VDLinux.rc1.2012-04-16) ) #1 PREEMPT Mon Nov 16 18:06:30 CST 2015

LINUX started...
CMDLINE:console=ttyS0,115200 emem=0xFFC0000 rmem=256 mem=118M cca=3 wdog=30 quiet ubi.mtd=5 root=ubi0:rootfs rootfstype=ubifs ro mtd_apexe=ro
bootconsole [early0] enabled
CPU revision is: 00019655 (MIPS 24Kc)
hclk = 96000000 (Hz)
Determined physical RAM map:
 memory: 04000000 @ 00000000 (usable)
a================================================================================
 Version : 0030, debug
 Applied Last Patch Number : 0442, DTV, NT568, debug, MAIN
================================================================================
[SERIAL INPUT MANAGE] disable_serial : ~~bye(len:5)
[SERIAL INPUT MANAGE] enable_serial : (len: 0)
[KDEBUGD] enter : kdebugd

/etc/rc.local start!!!!
=====================================================
  NVT ROOTFS VERSION : rootfs version file not found
  KERNEL MODULE VERSION : kernel module version file not found
=====================================================
ifconfig: socket: Address family not supported by protocol
mount mtd8
/dev/mtd8 is UBIFS
UBI device number 1, total 320 LEBs (40632320 bytes, 38.8 MiB), available 0 LEBs (0 bytes), LEB size 126976 bytes (124.0 KiB)
/dev/mtd10 is UBIFS
UBI device number 2, total 72 LEBs (9142272 bytes, 8.7 MiB), available 6 LEBs (761856 bytes, 744.0 KiB), LEB size 126976 bytes (124.0 KiB)
/dev/mtd13 is UBIFS

***********************
Run Nand IDTV
***********************

DirectFB Environment Setting
Setup Fusion
Install Driver
nvt_resmem mod ld
chmod: ./install_fpga.sh: Read-only file system

AUDIO-0.4.728.000 [20150507]
sd 0:0:0:0: [sda] 7579648 512-byte logical blocks: (3.88 GB/3.61 GiB)
ntkdriver mod ld
ln: tty0: Read-only file system
QT/DirectFB Environment Setting
Execute idtv
MID_ScalingStrategy_FAR - FARval: 24000
-------enter idtv main
# build: Nov 18 2015, 16:47:43
opne inputfile (null) fail !
APP_SHL_SWUpdate_BackupDBCheck start!!!
ubi2:dat on /mtd_apdat type ubifs (ro,relatime)
ubi2:dat on /mtd_apdat type ubifs (ro,relatime)
APP_SHL_SWUpdate_BackupDBCheck mtd_apdat ro recovery!!!
cp: can't stat '/mtd_apdat/NVT_NAND_TEST': Input/output error
cp: can't stat '/mtd_apdat/DTVINFO_VER': Input/output error
cp: can't stat '/mtd_apdat/DTVINFO_VER': Input/output error
cp: can't stat '/mtd_apdat/DTVINFO_VER': Input/output error
cp: can't stat '/mtd_apdat/DTVINFO_VER': Input/output error
cp: can't stat '/mtd_apdat/DTVINFO_VER': Input/output error
cp: can't stat '/mtd_apdat/DTVINFO_VER': Input/output error