DNW does not confirm USB OK on qq2440V3 board

[nirav700]

Hello,

After installing supervivi-64M (using jtag) i had following problem.
Windows XP found new HW but does not recognized S3c2440 board.
DNW does not confirm USB OK.Serial communication working OK.
I have Installed USB driver correctly.

As i found that for QQ2440 board D+ pin of USB device will be pulled to high when a device connect to PC.
I already made that change on my HW.Still device is not identified as s3c2440 board and not able to transfer any images via USB.
Until now i knew that Difference between QQ2440 and Mini2440 are

MINI2440:
1. Ethernet Chip DM9000
2. User Button Number 6
3. CMOS Camera i/f add signal of I2C and EINT20
4. Power Supply Voltage 5V
5. NAND : 64M/128m/256m/1GB
6. Dimension 100 x 100 mm
7. USB_en :GPC5, so supervivi can't be used on QQ2440

QQ2440:
1. Ethernet Chip CS8900
2. User Button Number 4
3. CMOS Camera i/f no signal of I2C and EINT20
4. Power Supply Voltage 12V
5. NAND : 64M
6. Dimension 120 x 100 mm
7. USB_en: GPG12.

i do not know which changes has to be made in bootloader software side as USB_en pin is used differently on these two boards.Do we have source code for the bootloader.

please assist me,
regards,
Nirav.