ATMCI_CFG
atmci_writel(host, ATMCI_CFG, host->cfg_reg);
atmci_writel(host, ATMCI_CFG, host->cfg_reg);
atmci_writel(host, ATMCI_CFG, host->cfg_reg);
atmci_writel(host, ATMCI_CFG, host->cfg_reg);
atmci_writel(host, ATMCI_CFG, host->cfg_reg);
val = buf[ATMCI_CFG / 4];