lx_plx_reg_write
lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg);
lx_plx_reg_write(chip, ePLX_MBOX3, 0);
lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg);
lx_plx_reg_write(chip, ePLX_PCICR, 1);
lx_plx_reg_write(chip, ePLX_IRQCS, reg);
lx_plx_reg_write(chip, ePLX_L2PCIDB, temp);
void lx_plx_reg_write(struct lx6464es *chip, int port, u32 data);