[AMD Official Use Only]

quoted

Now i am trying to change ASF registers instead of SMBus registers.
I have tried to enable interrupts and set listen address, but it don't
work or
i can't recognize the difference between interrupts generated by
transfers and
interrupts generated from slave.

Try reading the value of SFx0A ASFStatus bit 5 (it's write to clear if it's an interrupt).

quoted

outb_p(0x02, 0x15 + piix4_smba); // SlaveIntrListenEn
outb_p(0x2c << 1 | 0x01, 0x09 + piix4_smba); // ListenAdr | ListenAdrEn

ASFx04 SlaveAddress instead of  ASFx09 ListenAdr
?

Without change, but this (0x08 or 0x10, both are not needed) starts 
generating interrupts

outb_p(0x08 << 1 | 0x01, 0x09 + piix4_smba);
outb_p(0x10 << 1 | 0x01, 0x09 + piix4_smba);

It generates interrupts with frequency 10 Hz - 0.01 Hz. I don't see correlation with trackpoint / touchpad.