ICR_START
reg &= ~(ICR_START | ICR_ACKNAK | ICR_STOP);
A37X0_IIC_WRITE(sc, A37X0_IIC_ICR, reg | ICR_START | ICR_TB);
reg &= ~(ICR_START | ICR_STOP | ICR_ACKNAK);
reg &= ~(ICR_START | ICR_STOP | ICR_ACKNAK);