[LinuxBIOS] SPD as debug channel
segher at kernel.crashing.org
Fri Dec 1 23:36:54 CET 2006
>> Since you need I2C, you need to get parts of the south bridge
> Even though it's on the DIMM? Ugh. :(
>> So, its basically the same amount of work as with the USB debug
> Yeah. Not much point to it then.
Well at least it's an I/O BAR instead of a memory BAR, quite a
bit easier to do portably.
>> Question is: Will we see systems without USB (debug port) but with
>> DDR2 sockets?
> See wiki page with list of EHCI chips that lack the debug port. On
> the other hand maybe all boards using them will have a serial port?
Lots of boards don't have USB... Remember, the desktop market
is only a very small percentage of the total (Linux) market!
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