Take a look again of the mentioned calxeda...
it looks like it only uses the compatible "calxeda,hb-ahci" handled by
drivers/ata/sata_highbank.c and seems not using the ahci-platform.c
obj-$(CONFIG_SATA_HIGHBANK) += sata_highbank.o libahci.o
so imho the maximum 0x1 still should be right
regards Frank
> > Gesendet: Samstag, 05. März 2022 um 00:37 Uhr
> > Von: "Rob Herring" <[email protected]>
>
> > There's a spec for it, so no need to look at what's used. Calxeda AHCI
> > had 5 ports IIRC.