FBR1
lcd_writel(fbi, FBR1, fbi->fdadr[dma + 1] | 0x1);
lcd_writel(ofb->fbi, enabled ? FBR1 : FDADR1, fdadr1);
lcd_writel(ofb->fbi, FBR1, ofb->fbi->fdadr[DMA_OV1] | 0x3);