Sven Kapferer wrote:
Any chance to find out what hardware is listening at 0xcd6/0xcd7?
The hardware listening on these ports is the BCM5785 (HT1000 southbridge). Basically, the code just controls 2 GPIO pins that are connected to WP and TBL of the BIOS chip.
Sure - but what determines the port - or rather, where can it be probed?
Data from Samuel suggests that the ports are configured by the BIOS, because the PNP0c02 device owns them ("system peripheral: other") according to ACPI tables.
Do you know if the base port is readable from a fixed register such as one in PCI config space?
//Peter