I have a pc that I use as a VDR. In order to use less power and make it 
a little quiter I run
it with a lower FSB than I could. Normal is FSB 133 Mhz and I run it 
with 66 Mhz FSB.

The problem is that the ehci_hcd doesn't work with my FSB 66 Mhz.
No USB 2.0 memory stick and no USB 2.0 harddisk.
If I remove ehci_hcd it runs nicely with uhci_hcd, but slowly of course.

When I run it with FSB 66 Mhz I get:

kernel: usb 4-2: new high speed USB device using ehci_hcd and address 2
kernel: usb 4-2: no configurations
kernel: usb 4-2: can't read configurations, error -22

When I run it with FSB 133 Mhz I get:

kernel: usb 4-2: new high speed USB device using ehci_hcd and address 2
kernel: usb 4-2: configuration #1 chosen from 1 choice

When I boot into Windows USB seems to work nicely in FSB 66 so
it shouldn't be a hardware problem?

The processor is an AMD 2400+ XP.
Kernel:Fedora core 6 2.6.19-1.2895.fc6

Josce

My lcpci -v:

00:00.0 Host bridge: VIA Technologies, Inc. VT8377 [KT400/KT600 AGP] 
Host Bridge (rev 80)
        Subsystem: ASRock Incorporation K7VT6 motherboard
        Flags: bus master, 66MHz, medium devsel, latency 8
        Memory at e0000000 (32-bit, prefetchable) [size=64M]
        Capabilities: [80] AGP version 3.5
        Capabilities: [c0] Power Management version 2

00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI Bridge (prog-if 
00 [Normal decode])
        Flags: bus master, 66MHz, medium devsel, latency 0
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
        I/O behind bridge: 0000c000-0000cfff
        Memory behind bridge: dfe00000-dfefffff
        Prefetchable memory behind bridge: cfd00000-dfcfffff
        Capabilities: [80] Power Management version 2

00:0a.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01)
         Subsystem: Technotrend Systemtechnik GmbH Technotrend/Hauppauge 
DVB card rev2.1
        Flags: bus master, medium devsel, latency 32, IRQ 18
        Memory at dffffe00 (32-bit, non-prefetchable) [size=512]

00:0c.0 Ethernet controller: Atheros Communications, Inc. AR5212 
802.11abg NIC (rev 01)
        Subsystem: D-Link System Inc DWL-G520 Wireless PCI Adapter
        Flags: bus master, medium devsel, latency 168, IRQ 17
        Memory at dffe0000 (32-bit, non-prefetchable) [size=64K]
        Capabilities: [44] Power Management version 2

00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 
Controller (rev 80) (prog-if 00 [UHCI])
        Subsystem: ASRock Incorporation K7VT6
        Flags: bus master, medium devsel, latency 32, IRQ 16
        I/O ports at e400 [size=32]
        Capabilities: [80] Power Management version 2

00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 
Controller (rev 80) (prog-if 00 [UHCI])
        Subsystem: ASRock Incorporation K7VT6
        Flags: bus master, medium devsel, latency 32, IRQ 16
        I/O ports at e800 [size=32]
        Capabilities: [80] Power Management version 2

00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 
Controller (rev 80) (prog-if 00 [UHCI])
        Subsystem: ASRock Incorporation K7VT6
        Flags: bus master, medium devsel, latency 32, IRQ 16
        I/O ports at ec00 [size=32]
        Capabilities: [80] Power Management version 2

00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82) 
(prog-if 20 [EHCI])
        Subsystem: ASRock Incorporation K7VT6 motherboard
        Flags: bus master, medium devsel, latency 32, IRQ 16
        Memory at dffffd00 (32-bit, non-prefetchable) [size=256]
        Capabilities: [80] Power Management version 2

00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
        Subsystem: ASRock Incorporation K7VT2 motherboard
        Flags: bus master, stepping, medium devsel, latency 0
        Capabilities: [c0] Power Management version 2

00:11.1 IDE interface: VIA Technologies, Inc. 
VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) 
(prog-if 8a [Master SecP PriP])
        Subsystem: ASRock Incorporation K7VT2/K7VT6 motherboard
        Flags: bus master, medium devsel, latency 32, IRQ 255
        I/O ports at fc00 [size=16]
        Capabilities: [c0] Power Management version 2

00:11.5 Multimedia audio controller: VIA Technologies, Inc. 
VT8233/A/8235/8237 AC97 Audio Controller (rev 50)
        Subsystem: ASRock Incorporation K7VT6 motherboard
        Flags: medium devsel, IRQ 19
        I/O ports at e000 [size=256]
        Capabilities: [c0] Power Management version 2

01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV100 QY 
[Radeon 7000/VE] (prog-if 00 [VGA])
        Subsystem: Connect Components Ltd Radeon 7000 64MB DDR + DVI
         Flags: bus master, stepping, 66MHz, medium devsel, latency 32, 
IRQ 11
        Memory at d0000000 (32-bit, prefetchable) [size=128M]
        I/O ports at c800 [size=256]
        Memory at dfef0000 (32-bit, non-prefetchable) [size=64K]
        Expansion ROM at dfec0000 [disabled] [size=128K]
        Capabilities: [58] AGP version 2.0
        Capabilities: [50] Power Management version 2

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