The following reply was made to PR kern/37826; it has been noted by GNATS.
From: David Holland <dholland-bugs%netbsd.org@localhost>
To: Art Lemasters <develunix%gmail.com@localhost>
Cc: gnats-bugs%netbsd.org@localhost
Subject: Re: kern/37826 (Kernel sees only one SATA channel (out of four) on
Abit AN52 motherboard (nvidia nf520__single chip))
Date: Fri, 27 Mar 2009 03:32:32 +0000
> ahcisata0 at pci0 dev 10 function 0: vendor 0x10de product 0x045d
> APSI: Picked IRQ 23 with weight 0
> ahcisata0: interrupting at ioapic0 pin 23
> ahcisata0: AHCI revision 1.1, 4 ports, 32 command slots, features 0xe3228080
> atabus1 at ahcisata0 channel 0
> atabus2 at ahcisata0 channel 1
> atabus3 at ahcisata0 channel 2
> atabus4 at ahcisata0 channel 3
> [...]
> ahcisata0 port 0: device present, speed: 1.5Gb/s
> ahcisata0 port 1: device present, speed: 1.5Gb/s
> wd0 at atabus1 drive 0: <HDS728080PLA380>
> wd0: drive supports 16-sector PIO transfers, LBA48 addressing
> wd0: 78533 MB, 159560 cyl, 16 head, 63 sec, 512 bytes/sect x 160836480
sectors
> wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
> wd0(ahcisata0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6
> (Ultra/133) (using DMA)
> wd1 at atabus2 drive 0: <HDS728080PLA380>
> wd1: drive supports 16-sector PIO transfers, LBA48 addressing
> wd1: 78533 MB, 159560 cyl, 16 head, 63 sec, 512 bytes/sect x 160836480
sectors
> wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
> wd1(ahcisata0:1:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6
(Ultra/133) (using DMA)
There's both your drives.