MXS_I2C_CTRL0_RUN
while (readl(i2c->regs + MXS_I2C_CTRL0) & MXS_I2C_CTRL0_RUN) {
reg |= MXS_I2C_CTRL0_RUN;
writel(MXS_I2C_CTRL0_RUN, i2c->regs + MXS_I2C_CTRL0_SET);