22 	engine, DIMM memory, and four ATA engines (one per SATA port).
24 	handing off to one (or more) of the ATA engines.  The ATA
39 	transactions into a fixed DIMM memory space, from where an ATA
46 		submit ATA packet to hardware
47 		hardware executes ATA WRITE command, w/ data in DIMM
52 		submit ATA packet to hardware
53 		hardware executes ATA READ command, w/ data in DIMM
124 	PDC_MASK_INT		= (1 << 10), /* HDMA/ATA mask int */
125 	PDC_RESET		= (1 << 11), /* HDMA/ATA reset */
308 	/* output ATA packet S/G table */  in pdc20621_ata_sg()
311 	VPRINTK("ATA sg addr 0x%x, %d\n", addr, addr);  in pdc20621_ata_sg()
315 	VPRINTK("ATA PSG @ %x == (0x%x, 0x%x)\n",  in pdc20621_ata_sg()
359 	 * Set up ATA packet  in pdc20621_ata_pkt()
450 	VPRINTK("ata%u: ENTER\n", ap->print_id);  in pdc20621_dma_prep()
468 	 * Build ATA, host DMA packets  in pdc20621_dma_prep()
495 	VPRINTK("ata pkt buf ofs %u, prd size %u, mmio copied\n", i, sgt_len);  in pdc20621_dma_prep()
507 	VPRINTK("ata%u: ENTER\n", ap->print_id);  in pdc20621_nodata_prep()
530 	VPRINTK("ata pkt buf ofs %u, mmio copied\n", i);  in pdc20621_nodata_prep()
636 	VPRINTK("ata%u: ENTER\n", ap->print_id);  in pdc20621_packet_start()
642 	/* if writing, we (1) DMA to DIMM, then (2) do ATA command */  in pdc20621_packet_start()
706 			VPRINTK("ata%u: read hdma, 0x%x 0x%x\n", ap->print_id,  in pdc20621_host_intr()
714 		/* step one - exec ATA command */  in pdc20621_host_intr()
717 			VPRINTK("ata%u: read ata, 0x%x 0x%x\n", ap->print_id,  in pdc20621_host_intr()
732 			VPRINTK("ata%u: write hdma, 0x%x 0x%x\n", ap->print_id,  in pdc20621_host_intr()
735 			/* submit ata pkt */  in pdc20621_host_intr()
743 		/* step two - execute ATA command */  in pdc20621_host_intr()
745 			VPRINTK("ata%u: write ata, 0x%x 0x%x\n", ap->print_id,  in pdc20621_host_intr()
844 	/* FIXME: if all 4 ATA engines are stopped, also stop HDMA engine */  in pdc_freeze()
858 	/* FIXME: start HDMA engine, if zero ATA engines running */  in pdc_thaw()