请问怎样使vivi支持usb下载？

lemonade

请问各位大虾，怎样使vivi支持usb下载
出现如下启动信息：

VIVI version 0.1.4 ([email protected]) (gcc version 2.95.3 20010315 (re
lease)) #0.1.4 Sat Apr 1 12:42:15 EST 2006
MMU table base address = 0x33DFC000
Succeed memory mapping.
+---------------------------------------------+
| S3C2410X USB Downloader ver R1.11 SEP/03/02 |
+---------------------------------------------+
FCLK=200MHz,DMA mode
USB: IN_ENDPOINT:1 OUT_ENDPOINT:3
formAT: +++
NAND device: Manufacture ID: 0xec, Chip ID: 0x76 (Samsung K9D1208V0M)
Could not found stored vivi parameters. Use default vivi parameters.
Press Return to start the LINUX now, any other key for vivi