[LinuxBIOS] EHCI Debug Port on ICH4/ICH4-M chipset

[joe at smittys.pointclark.net]

The ICH4 datasheet also says it has a EHCI debug port.
Why is it not supported in LB?

Thanks - Joe


Quoting Marcin Juszkiewicz <openembedded at haerwu.biz>:

>
> On http://linuxbios.org/EHCI_Debug_Port wiki page there is an info that
> Intel ICH4/ICH4-M chipset does not supports Debug Port. I have Dell D400
> laptop with that chipset and Debug Port is available according to lspci
> output:
>
> 22:47 hrw at maluch:~$ sudo lspci -ns $(lspci|grep EHCI|cut -f1 -d' ');sudo
> lspci -vs $(lspci|grep EHCI|cut -f1 -d' ')
>
> 00:1d.7 0c03: 8086:24cd (rev 01)
> 00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2
> EHCI Controller (rev 01) (prog-if 20 [EHCI])
>         Subsystem: Dell Latitude D400
>         Flags: bus master, medium devsel, latency 0, IRQ 11
>         Memory at faeffc00 (32-bit, non-prefetchable) [size=1K]
>         Capabilities: [50] Power Management version 2
>         Capabilities: [58] Debug port
>
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