I2C_CNFG
i2c_readl(i2c_dev, I2C_CNFG));
i2c_writel(i2c_dev, val, I2C_CNFG);
cnfg = i2c_readl(i2c_dev, I2C_CNFG);
i2c_writel(i2c_dev, cnfg & ~I2C_CNFG_PACKET_MODE_EN, I2C_CNFG);
tegra_i2c_writel(val, nvec->base + I2C_CNFG);