EMMC50_CFG3
sdr_set_field(host->base + EMMC50_CFG3, EMMC50_CFG3_OUTS_WR, 2);
host->save_para.emmc50_cfg3 = readl(host->base + EMMC50_CFG3);
writel(host->save_para.emmc50_cfg3, host->base + EMMC50_CFG3);