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:
- plug in a usb drive
- do "usb start"
- should print that 1 storage device is found
- do "usb reset"
- 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