Software Engineering Talk

G. · Guest

Hi all!

I have the following southbridge: VIA VT8237A (Motherboard: ASUS M2V).

Problem:
The SATA-Controller (VendorID: 1106, DeviceID: 0591) doesn't generate an
interrupt.

The PCI-Configuration-Address-Space is as follows:
00 04 08 0C 10 14 18 1C
05911106 02900007 01018F80 00804000 0000DC01 0000D881 0000D801 0000D481

20 24 28 2C 30 34 38 3C
0000D401 0000D001 00000000 05911106 00000000 000000C0 00000000 00000205

3c: interrupt line 5
3d: interrupt pin 2

40 44 48 4C 50 54 58 5C
44F10303 0040AF06 00008000 00000000 00000000 20000000 00001000 00200000

60 64 68 6C 70 74 78 7C
00000001 00000000 00000000 00000000 00000000 00000000 10010001 00000004

80 84 88 8C 90 94 98 9C
00000000 00000000 0009FD20 00000000 00000000 00000000 00000000 00000000

A0 A4 A8 AC B0 B4 B8 BC
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

C0 C4 C8 CC D0 D4 D8 DC
00020001 00000000 00000000 00000000 05910280 05911106 00000000 00000000

E0 E4 E8 EC F0 F4 F8 FC
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

If I start an "identify device"-command no interrupt is generated.
First I tried interrupt number 5, after that every interrupt, no interrupt.

The PATA-Controller with interrupt 0e/0f works fine.

Did someone have this problem before?
Has someone got a datasheet of the southbridge?

Thank you!

Guenther

G. · Guest

I found the problem.
I didn't program the IO-APIC correctly.

Guenther