Dear Andrew Murray, > Hello, > > I'm unable to use some mass storage devices with the current git version > (6612ab33956ae09c5ba2fde9c1540b519625ba37) of UBoot on a TI Davinci custom > board. I have 7 pen drives, and 2 of them fail. > > I-O DATA USB Flash Disk (0x04bb/0x0c43) > > ... > 2 USB Device(s) found > scan end > scanning usb for storage devices... i=0 > i=1 > > > USB Mass Storage device detected > Transport: Bulk/Bulk/Bulk > Endpoints In 1 Out 2 Int 0 > usb_control_msg: request: 0xFE, requesttype: 0xA1, value 0x0 index 0x0 > length 0x1 > Get Max LUN -> len = 1, result = 0 > address 2 > COMMAND phase > DATA phase > STATUS phase > !CSWSIGNATURE > BBB_reset > usb_control_msg: request: 0xFF, requesttype: 0x21, value 0x0 index 0x0 > length 0x0 > RESET:stall > inquiry returns -1 > COMMAND phase > DATA phase > STATUS phase > !CSWSIGNATURE > BBB_reset > usb_control_msg: request: 0xFF, requesttype: 0x21, value 0x0 index 0x0 > length 0x0 > RESET:stall > inquiry returns -1 > COMMAND phase > DATA phase > STATUS phase > !CSWSIGNATURE > BBB_reset > usb_control_msg: request: 0xFF, requesttype: 0x21, value 0x0 index 0x0 > length 0x0 > RESET:stall > inquiry returns -1 > COMMAND phase > DATA phase > STATUS phase > !CSWSIGNATURE > BBB_reset > usb_control_msg: request: 0xFF, requesttype: 0x21, value 0x0 index 0x0 > length 0x0 > RESET:stall > inquiry returns -1 > COMMAND phase > DATA phase > STATUS phase > !CSWSIGNATURE > BBB_reset > usb_control_msg: request: 0xFF, requesttype: 0x21, value 0x0 index 0x0 > length 0x0 > RESET:stall > inquiry returns -1 > error in inquiry > i=2 > 0 Storage Device(s) found > > In this case putting a delay of 1000ms in usb_stor_BBB_transport between > the COMMAND and DATA phase, (in place of the conditional 5ms USB_READY > delay), overcomes this issue. It seems this 1000ms delay is only required > for the first COMMAND, subsequent COMMAND phases seem happy with the 5ms > delay. > > Lexar JumpDrive 32GB (0x0424/0x2507): >
So the device takes too long to init itself after powering up the port. It would be nice if you could check the spec and see if there is a way to query the device for ready condition. Although I remember we already do that. Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
