ATI M1 driver

I have board with ATI M1 graphic chipset. When i run crttrap utility it
detect Pg.m64 Pg.m64dc…, but this driver work fine only with 6404808
mode. When i start Pg.rage & with parameters, that write crttrap
for Pg.m64 & mach64bios, i see somthing bad on screen.
What I do wrong?