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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