I'm getting the following error message, which leads to a continuous reset loop
in my CPU (MPC8548).
U-Boot version is 1.3.4 and latest OHCI patches are available.
USB: OHCI pci controller (1033, 0035) found @(0:19:0)
OHCI regs address 0x80020000
scanning bus for devices... ERROR: CTL:TIMEOUT
ERROR: CTL:TIMEOUT
2 USB Device(s) found
scanning bus for storage devices... 0 Storage Device(s) found
Hit key 'u' to stop autoboot: 0 ### JFFS2 loading 'uImage' to 0x1000000
<cut>
ohci_hcd 0000:00:13.0: OHCI Host Controller
ohci_hcd 0000:00:13.0: new USB bus registered, assigned bus number 1
ohci_hcd 0000:00:13.0: irq 19, io mem 0x80020000
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
Initializing USB Mass Storage driver...
usb 1-3: new full speed USB device using ohci_hcd and address 2
--------> continuous resets from this point
# usb info
1: Hub, USB Revision 1.10
- OHCI Root Hub
- Class: Hub
- PacketSize: 8 Configurations: 1
- Vendor: 0x0000 Product 0x0000 Version 0.0
Configuration: 1
- Interfaces: 1 Self Powered 0mA
Interface: 0
- Alternate Setting 0, Endpoints: 1
- Class Hub
- Endpoint 1 In Interrupt MaxPacket 2 Interval 255ms
Configuration: 0
- Interfaces: 0 Bus Powered 0mA
# usb start
(Re)start USB...
USB: OHCI pci controller (1033, 0035) found @(0:19:0)
OHCI regs address 0x80020000
scanning bus for devices... ERROR: CTL:TIMEOUT
2 USB Device(s) found
scanning bus for storage devices... 0 Storage Device(s) found
Any advice how to recover from this issue? Neither "usb start" nor "usb reset"
seems to help.
Only powering off/on the HW can help the situation.
I need to prevent reset loops by being able to recover from this potential
issue in runtime.
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