INT_STATUS_ENABLE
t_val = readl(host->addr + INT_STATUS_ENABLE);
writel(t_val, host->addr + INT_STATUS_ENABLE);
t_val = readl(host->addr + INT_STATUS_ENABLE);
writel(t_val, host->addr + INT_STATUS_ENABLE);
writel(INT_STATUS_ALL, host->addr + INT_STATUS_ENABLE);
writel(0, host->addr + INT_STATUS_ENABLE);