I try to start from the usb directly, but mv78100 didn't provide corresponding driving, I found a marvell high version of the usb driver, put it to boot1.1.4, but couldn't find a usb storage, I don't know how to do it, who will give me some advice? Thank you, here is some information to start:

Marvell>> (Re)start USB... USB: scanning bus for devices... New Device 0 usb_control_msg: request: 0x6, requesttype: 0x80, value 0x100 index 0x0 length 0x8 EHCI_DEBUG: ehci_submit_root: req=6 (0x6), type=128 (0x80), value=256, index=0 set address 1 usb_control_msg: request: 0x5, requesttype: 0x0, value 0x1 index 0x0 length 0x0 EHCI_DEBUG: ehci_submit_root: req=5 (0x5), type=0 (0x0), value=1, index=0 usb_control_msg: request: 0x6, requesttype: 0x80, value 0x100 index 0x0 length 0x12 EHCI_DEBUG: ehci_submit_root: req=6 (0x6), type=128 (0x80), value=256, index=0 usb_control_msg: request: 0x6, requesttype: 0x80, value 0x200 index 0x0 length 0x9 EHCI_DEBUG: ehci_submit_root: req=6 (0x6), type=128 (0x80), value=512, index=0 usb_control_msg: request: 0x6, requesttype: 0x80, value 0x200 index 0x0 length 0x19 EHCI_DEBUG: ehci_submit_root: req=6 (0x6), type=128 (0x80), value=512, index=0 get_conf_no 0 Result 25, wLength 25 if 0, ep 0 ##EP epmaxpacketin[1] = 8 set configuration 1 usb_control_msg: request: 0x9, requesttype: 0x0, value 0x1 index 0x0 length 0x0 EHCI_DEBUG: ehci_submit_root: req=9 (0x9), type=0 (0x0), value=1, index=0 new device strings: Mfr=1, Product=2, SerialNumber=0 usb_control_msg: request: 0x6, requesttype: 0x80, value 0x300 index 0x0 length 0xFF EHCI_DEBUG: ehci_submit_root: req=6 (0x6), type=128 (0x80), value=768, index=0 USB device number 1 default language ID 0x1 usb_control_msg: request: 0x6, requesttype: 0x80, value 0x301 index 0x1 length 0xFF EHCI_DEBUG: ehci_submit_root: req=6 (0x6), type=128 (0x80), value=769, index=1 usb_control_msg: request: 0x6, requesttype: 0x80, value 0x302 index 0x1 length 0xFF EHCI_DEBUG: ehci_submit_root: req=6 (0x6), type=128 (0x80), value=770, index=1 Manufacturer Marvell Product EHCI SerialNumber usb_control_msg: request: 0x6, requesttype: 0xA0, value 0x2900 index 0x0 length 0x4 EHCI_DEBUG: ehci_submit_root: req=6 (0x6), type=160 (0xa0), value=10496, index=0 usb_control_msg: request: 0x6, requesttype: 0xA0, value 0x2900 index 0x0 length 0x8 EHCI_DEBUG: ehci_submit_root: req=6 (0x6), type=160 (0xa0), value=10496, index=0 usb_control_msg: request: 0x0, requesttype: 0xA0, value 0x0 index 0x0 length 0x4 EHCI_DEBUG: ehci_submit_root: req=0 (0x0), type=160 (0xa0), value=0, index=0 usb_control_msg: request: 0x3, requesttype: 0x23, value 0x8 index 0x1 length 0x0 EHCI_DEBUG: ehci_submit_root: req=3 (0x3), type=35 (0x23), value=8, index=1 usb_control_msg: request: 0x0, requesttype: 0xA3, value 0x0 index 0x1 length 0x4 EHCI_DEBUG: ehci_submit_root: req=0 (0x0), type=163 (0xa3), value=0, index=1 1 USB Device(s) found scanning bus for storage devices... i=0 netpower: usb probe fail, bDeviceClass:9, bInterfaceClass:9, bInterfaceSubClass:0, bInterfaceSubClass:0 i=1 //this is my print message 0 Storage Device(s) found

Marvell>> usb info 1: Hub, USB Revision 2.0 - Marvell EHCI - Class: Hub - PacketSize: 64 Configurations: 1 - Vendor: 0x0000 Product 0x0000 Version 1.0 Configuration: 1 - Interfaces: 1 Self Powered 0mA Interface: 0 - Alternate Setting 0, Endpoints: 1 - Class Hub - Endpoint 1 In Interrupt MaxPacket 8 Interval 255ms

why bInterfaceClass=9? http://old.nabble.com/file/p28591067/usb_ehci.c usb_ehci.c http://old.nabble.com/file/p28591067/usb_ehci.h usb_ehci.h