I2C_SIZE
aa->aa_size = I2C_SIZE;
{ "diic", I2C1_BASE, I2C_SIZE, 0,
{ "diic", I2C2_BASE, I2C_SIZE, 1,
error = bus_space_map(sc->sc_iot, cnl->cnl_addr, I2C_SIZE,
I2C_BASE + (I2C_SIZE * i), I2C_SIZE, &cic->cic_regh))