ICSCR
rcar_i2c_write(priv, ICSCR, SIE | SDBS);
rcar_i2c_write(priv, ICSCR, SDBS);
rcar_i2c_write(priv, ICSCR, SIE | SDBS); /* clear our NACK */
rcar_i2c_write(priv, ICSCR, SIE | SDBS |