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usb: Wait after sending Set Configuration request 

Some devices, like the SanDisk Cruzer Pop need some time to process
the Set Configuration request, so wait a little until they are ready.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Marek Vasut 2016-04-27 03:08:12 +02:00
parent 2f1b4302e3
commit f647bf0ba3
1 changed files with 8 additions and 0 deletions
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8
common/usb.c
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@ -1107,6 +1107,14 @@ int usb_select_config(struct usb_device *dev)
"len %d, status %lX\n", dev->act_len, dev->status); "len %d, status %lX\n", dev->act_len, dev->status);
return err; return err;
} }
/*
* Wait until the Set Configuration request gets processed by the
* device. This is required by at least SanDisk Cruzer Pop USB 2.0
* and Kingston DT Ultimate 32GB USB 3.0 on DWC2 OTG controller.
*/
mdelay(10);
debug("new device strings: Mfr=%d, Product=%d, SerialNumber=%d\n", debug("new device strings: Mfr=%d, Product=%d, SerialNumber=%d\n",
dev->descriptor.iManufacturer, dev->descriptor.iProduct, dev->descriptor.iManufacturer, dev->descriptor.iProduct,
dev->descriptor.iSerialNumber); dev->descriptor.iSerialNumber);