MCI_IRQENABLE
writel(MCI_IRQENABLE | host->variant->start_err,
writel(MCI_IRQENABLE | variant->start_err, host->base + MMCIMASK0);
writel(MCI_IRQENABLE | host->variant->start_err,
writel(MCI_IRQENABLE | host->variant->start_err,