CFG_DMA_VM_ENA_MASK  622 drivers/video/fbdev/mmp/hw/mmp_ctrl.h #define	 CFG_DMA_VM_ENA_MASK			0x00002000
CFG_DMA_VM_ENA_MASK  392 drivers/video/fbdev/pxa168fb.h #define     CFG_DMA_VM_ENA_MASK			0x00002000