LPI2C_MFCR
lpi2c_imx->base + LPI2C_MFCR);
writel(dma->tx_burst_num, lpi2c_imx->base + LPI2C_MFCR);
writel(lpi2c_imx->txfifosize >> 1, lpi2c_imx->base + LPI2C_MFCR);
writel(temp << 16, lpi2c_imx->base + LPI2C_MFCR);