FLASH_DMA_FIRST_DESC_EXT
[FLASH_DMA_FIRST_DESC_EXT] = 0x08,
[FLASH_DMA_FIRST_DESC_EXT] = 0x0c,
flash_dma_writel(ctrl, FLASH_DMA_FIRST_DESC_EXT,
(void)flash_dma_readl(ctrl, FLASH_DMA_FIRST_DESC_EXT);