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Author Topic: Weird usb storage issues on Dreamplug with uboot  (Read 1258 times)
fabfour
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« on: April 23, 2013, 03:42:25 PM »

Hi,

in my configuration i want to attach an external usb drive to the dreamplug.

If the drive is attached at boot time it is not recognized later on by the linux kernel.
But if i unplug and replug the device, i can use it normally.
if i perform usb start the first time in uboot the harddisk is found
after an usb reset the drive is not found anymore as you can see in my output.
I think uboot messes something up in device initialization.

any idea?

U-Boot 2011.06-02334-g8f495d9-dirty (May 31 2011 - 02:06:26)
Marvell-DreamPlug

SoC:   Kirkwood 88F6281_A0
CPU running @ 1200Mhz L2 running @ 400Mhz
SysClock = 400Mhz , TClock = 200Mhz
DRAM:  512 MiB
SF: Detected MX25L1606 with page size 256, total 1 MiB
In:    serial
Out:   serial
Err:   serial
Net:   egiga0, egiga1
88E1116 Initialized on egiga0
88E1116 Initialized on egiga1
Hit any key to stop autoboot:  0
Marvell>> usb start
(Re)start USB...
USB:   Register 10011 NbrPorts 1
USB EHCI 1.00
scanning bus for devices... 5 USB Device(s) found
       scanning bus for storage devices... 3 Storage Device(s) found
Marvell>> usb storage
  Device 0: Vendor: Generic  Rev: 9910 Prod: STORAGE DEVICE
            Type: Removable Hard Disk
            Capacity: 3920.0 MB = 3.8 GB (8028160 x 512)
  Device 1: Vendor: Generic  Rev: 9910 Prod: STORAGE DEVICE
            Type: Removable Hard Disk
            Capacity: 15312.0 MB = 14.9 GB (31358976 x 512)
  Device 2: Vendor: SAMSUNG  Rev: 1AQ1 Prod: HD204UI
            Type: Hard Disk
            Capacity: 1907729.0 MB = 1863.0 GB (-387938128 x 512)
Marvell>> usb reset
(Re)start USB...
USB:   Register 10011 NbrPorts 1
USB EHCI 1.00
scanning bus for devices... 5 USB Device(s) found
       scanning bus for storage devices... 2 Storage Device(s) found
Marvell>> usb storage
  Device 0: Vendor: Generic  Rev: 9910 Prod: STORAGE DEVICE 
            Type: Removable Hard Disk
            Capacity: 3920.0 MB = 3.8 GB (8028160 x 512)
  Device 1: Vendor: Generic  Rev: 9910 Prod: STORAGE DEVICE 
            Type: Removable Hard Disk
            Capacity: 15312.0 MB = 14.9 GB (31358976 x 512)

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