Hello all,
We have in the i2-piix4 the fix_hstcfg option and it seems we should move it to pci/quirks.c
The new serverworks chipsets do not need it and because they have bit different interrupt select
field the message about fix_hstcfg will appear. And if the user do it it wont work or freeze.
As to remind I created this modified table with the serverworks int bit in place:
Address Offset: D2h
Default Value: 00h
Attribute: Read/Write
Bit Description
7:4 Reserved.
3:1 SMBus Interrupt Select (SMB_INTRSEL)--R/W. Selects the type of interrupt generated by the
SMBus controller. This field is decoded as follows:
Bits[3:1] SMBus Interrupt Bits[3:1] SMBus Interrupt
000 SMI# 100 IRQ9
001 Serverworks IRQ 101 Reserved
010 Reserved 110 Reserved
011 Reserved 111 Reserved
0 SMBus Controller Host Interface Enable (SMB_HST_EN)--R/W. 1=Enable the SMBus
Controller Host Interface. 0=Disable.
if (fix_hstcfg) {
dev_info(&PIIX4_dev->dev, "Working around buggy BIOS "
"(I2C)\n");
temp &= 0xfd;
So this just cleans bit 1 effectively switching the serverworks IRQ mode to SMI (in fact) (If I remember correctly the motherboard
had some incarnation of serverworks chipset.)
Tom, please can you supply the lspci -v -v -v of that machine so a quirk can be developed?
If you dont have the machine anymore I think we can drop that option anyway because I googled hard and it seemed nobody else had
similar problems.
Regards
Rudolf
