Hi Hans,
On 03/27/2015 03:08 AM, Hans de Goede wrote:
Hi,
First of all I'm not sure this is a regression, but I'm afraid
I do not have time to dig deeper so I thought I should report
it anyways and then others can try to reproduce it.
I'm seeing the following happen when using a usb stick
with a musb-new otg controller in host mode on an allwinner
tablet:
sunxi# usb reset
resetting USB...
USB0: scanning bus 0 for devices... 1 USB Device(s) found
scanning usb for storage devices... error in inquiry
0 Storage Device(s) found
The interesting thing is that, the first "usb start" works
fine, this only happens on the second usb start (triggered
through a usb reset).
This may be specific to using musb on sunxi, or to the
flashdrive I have but I thought I should report this
anyways. Esp. since usb otherwise works fine after a
usb reset, other devices (usb keyboards) continue to
work, and the descriptors of the usb drive do get read
correctly:
sunxi# usb info
1: Mass Storage, USB Revision 2.0
- USB Flash Disk 4C0E960F
- Class: (from Interface) Mass Storage
- PacketSize: 64 Configurations: 1
- Vendor: 0x058f Product 0x6387 Version 1.3
Configuration: 1
- Interfaces: 1 Bus Powered 100mA
Interface: 0
- Alternate Setting 0, Endpoints: 2
- Class Mass Storage, Transp. SCSI, Bulk only
- Endpoint 1 Out Bulk MaxPacket 512
- Endpoint 2 In Bulk MaxPacket 512
Perhaps someone can test the reproducer on another board
with usb:
1) plug in a usb drive
2) do "usb start"
3) should print that 1 storage device is found
4) do "usb reset"
5) should still print that 1 storage device is found,
but for me gives the error I mentioned above.
I tested it OK with EHCI on Atmel sama5d4ek board. The following
information for your reference.
--->8---
U-Boot SPL 2015.04-rc4-00067-gf643d92 (Mar 27 2015 - 14:31:49)
U-Boot 2015.04-rc4-00067-gf643d92 (Mar 27 2015 - 14:31:49)
CPU: SAMA5D44
Crystal frequency: 12 MHz
CPU clock : 528 MHz
Master clock : 176 MHz
DRAM: 512 MiB
NAND: 512 MiB
MMC: mci: 0
In: serial
Out: serial
Err: serial
Net: gmac0, usb_ether
Error: usb_ether address not set.
Hit any key to stop autoboot: 0
U-Boot> usb start
starting USB...
USB0: USB EHCI 1.00
scanning bus 0 for devices... 2 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found
U-Boot> usb reset
resetting USB...
USB0: USB EHCI 1.00
scanning bus 0 for devices... 2 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found
U-Boot>
---8<---
Regards,
Hans
Best Regards,
Bo Shen
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