[coreboot] Firmware hub flash addressing [off-topic]

llandre r&d2 at dave-tech.it
Wed Jun 18 12:29:04 CEST 2008


thanks for your help.

> Sorry, the 5536 only sets IDSEL = 0 for FWH.  
I see. Unfortunately this is not explained in databook.

> But, I think you can 
> design in multiple LPC ROMs.
> The LPC ROMs should have ID pins that map them to different regions, 
> i.e. there's an internal compare for the inverted values to certain 
> address bits.  So it seems you should be able to map multiple devices in 
> the address space this way.
> See page 10 -
> http://www.sst.com/downloads/datasheet/S71213.pdf
Fine. I think we'll replace FWH with LPC flash in order to support 
multiple ROMs on LPC bus.


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