[U-Boot] Regression in usb-storage in u-boot 2015.04 ???

[Simon Glass]

Hi Iain,

On 27 March 2015 at 02:42, Iain Paton <ipaton0 at gmail.com> wrote:
> On 26/03/15 19:08, Hans de Goede wrote:
>
>> Perhaps someone can test the reproducer on another board
>> with usb:
>
> on an A20-OLinuXino-lime2
>
> U-Boot SPL 2015.04-rc4-00073-g07d8f86 (Mar 27 2015 - 08:05:11)
> DRAM: 1024 MiB
> CPU: 912000000Hz, AXI/AHB/APB: 3/2/2
>
> U-Boot 2015.04-rc4-00073-g07d8f86 (Mar 27 2015 - 08:05:11) Allwinner Technology
>
> CPU:   Allwinner A20 (SUN7I)
> I2C:   ready
> DRAM:  1 GiB
> MMC:   SUNXI SD/MMC: 0
> *** Warning - bad CRC, using default environment
>
> In:    serial
> Out:   serial
> Err:   serial
> SCSI:  SUNXI SCSI INIT
> SATA link 0 timeout.
> AHCI 0001.0100 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
> flags: ncq stag pm led clo only pmp pio slum part ccc apst
> Net:   dwmac.1c50000
> starting USB...
> USB0:   USB EHCI 1.00
> scanning bus 0 for devices... 1 USB Device(s) found
> USB1:   USB EHCI 1.00
> scanning bus 1 for devices... 2 USB Device(s) found
>        scanning usb for storage devices... 1 Storage Device(s) found
> Hit any key to stop autoboot:  0
> sunxi# usb start
> sunxi# usb reset
> resetting USB...
> USB0:   USB EHCI 1.00
> scanning bus 0 for devices... 1 USB Device(s) found
> USB1:   USB EHCI 1.00
> scanning bus 1 for devices... EHCI timed out on TD - token=0x80008c80
> 2 USB Device(s) found
>        scanning usb for storage devices... 1 Storage Device(s) found
>
>
> that EHCI timeout appears to be random, it pops up maybe 20% of the time.

I see this also, both with and without driver model. It seems like a
bit of a worry. I can repeat this on the first use of USB from boot,
around 20% of the time.

Regards,
Simon