[coreboot] Firmware hub flash addressing [off-topic]
llandre
r&d2 at dave-tech.it
Wed Jun 18 12:29:04 CEST 2008
Marc,
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.
Regards,
llandre
DAVE Electronics System House - R&D Department
web: http://www.dave.eu
email: r&d2 at dave-tech.it
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