MDBS
#define RCAR_BUS_PHASE_START (MDBS | MIE | ESG)
#define RCAR_BUS_PHASE_DATA (MDBS | MIE)
#define RCAR_BUS_PHASE_STOP (MDBS | MIE | FSB)
rcar_i2c_write(priv, ICMCR, MDBS);
priv->recovery_icmcr = MDBS | OBPC | FSDA | FSCL;