437 static u8 do_one_read (int device, ulong block, u8 blkcnt, u16 * buff,  in do_one_read()  argument
445 	if (!(sata_chk_status (&port[device].ioaddr, 0) & ATA_DRDY)) {  in do_one_read()
446 		printf ("Device ata%d not ready\n", device);  in do_one_read()
454 		writeb (0, port[device].ioaddr.nsect_addr);  in do_one_read()
455 		writeb ((blknr >> 24) & 0xFF, port[device].ioaddr.lbal_addr);  in do_one_read()
456 		writeb ((blknr >> 32) & 0xFF, port[device].ioaddr.lbam_addr);  in do_one_read()
457 		writeb ((blknr >> 40) & 0xFF, port[device].ioaddr.lbah_addr);  in do_one_read()
460 	writeb (blkcnt, port[device].ioaddr.nsect_addr);  in do_one_read()
461 	writeb (((blknr) >> 0) & 0xFF, port[device].ioaddr.lbal_addr);  in do_one_read()
462 	writeb ((blknr >> 8) & 0xFF, port[device].ioaddr.lbam_addr);  in do_one_read()
463 	writeb ((blknr >> 16) & 0xFF, port[device].ioaddr.lbah_addr);  in do_one_read()
467 		writeb (ATA_LBA, port[device].ioaddr.device_addr);  in do_one_read()
468 		writeb (ATA_CMD_PIO_READ_EXT, port[device].ioaddr.command_addr);  in do_one_read()
473 			port[device].ioaddr.device_addr);  in do_one_read()
474 		writeb (ATA_CMD_PIO_READ, port[device].ioaddr.command_addr);  in do_one_read()
477 	status = sata_busy_wait (&port[device].ioaddr, ATA_BUSY, 10000, 1);  in do_one_read()
482 		printf ("Device %d not responding status %d\n", device, status);  in do_one_read()
483 		err = readb (port[device].ioaddr.error_addr);  in do_one_read()
490 		if (wait_for_irq (device, 500)) {  in do_one_read()
491 			printf ("ata%u irq failed\n", device);  in do_one_read()
495 		status = sata_chk_status (&port[device].ioaddr, 0);  in do_one_read()
497 			printf ("ata%u error %d\n", device,  in do_one_read()
498 				readb (port[device].ioaddr.error_addr));  in do_one_read()
502 		input_data (&port[device].ioaddr, buff, ATA_SECTOR_WORDS);  in do_one_read()
510 ulong sata_read (int device, ulong block, lbaint_t blkcnt, void *buff)  in sata_read()  argument
520 		if (!sata_dev_desc[device].lba48) {  in sata_read()
537 		status = do_one_read (device, blknr, sread, buffer, lba48);  in sata_read()
551 ulong sata_write (int device, ulong block, lbaint_t blkcnt, const void *buff)  in sata_write()  argument
561 		if (!sata_dev_desc[device].lba48) {  in sata_write()
570 	num = device;  in sata_write()
611 				device, (ulong) blknr, status);  in sata_write()