JZ_MMC_IRQ_SDIO
if (irq_reg & JZ_MMC_IRQ_SDIO) {
jz4740_mmc_write_irq_reg(host, JZ_MMC_IRQ_SDIO);
irq_reg &= ~JZ_MMC_IRQ_SDIO;
jz4740_mmc_set_irq_enabled(host, JZ_MMC_IRQ_SDIO, enable);