Subject: Re: AlphaPC 164SX
To: None <port-alpha@NetBSD.ORG>
From: Takao Shinohara <firstname.lastname@example.org>
Date: 02/06/1998 11:02:18
I think NetBSD/alpha 1.3 does not support AlphaPC 164SX, because 164SX
has incompatible PCI/ISA bridge chip.
According to "DIGITAL Semiconductor AlphaPC 164SX Motherboard Technical
Reference Manual(EC-R57EA-TE)", 164SX has CY82C693U-NC for PCI/ISA
Comparing 82378ZB and CY82C693U, I found that ELCRs are located on
different I/O address.
Chip ELCR location
82378ZB I/O 0x04d0, 0x04d1
CY82C693U control register index 0x03, 0x04
(accessed through I/O 0x22 and 0x23)