drivers/ata/pata_rz1000.c

1 // SPDX-License-Identifier: GPL-2.0-only
6  *  Copyright (C) 1995-1998  Linus Torvalds & author (see below)
11  *  This file provides support for disabling the buggy read-ahead
28  *	rz1000_set_mode		-	mode setting function
29  *	@link: ATA link
37 static int rz1000_set_mode(struct ata_link *link, struct ata_device **unused)  in rz1000_set_mode()  argument
41 	ata_for_each_dev(dev, link, ENABLED) {  in rz1000_set_mode()
43 		dev->pio_mode = XFER_PIO_0;  in rz1000_set_mode()
44 		dev->xfer_mode = XFER_PIO_0;  in rz1000_set_mode()
45 		dev->xfer_shift = ATA_SHIFT_PIO;  in rz1000_set_mode()
46 		dev->flags |= ATA_DFLAG_PIO;  in rz1000_set_mode()
68 		return -1;  in rz1000_fifo_disable()
71 		return -1;  in rz1000_fifo_disable()
72 	dev_info(&pdev->dev, "disabled chipset readahead.\n");  in rz1000_fifo_disable()
77  *	rz1000_init_one - Register RZ1000 ATA PCI device with kernel services
95 	ata_print_version_once(&pdev->dev, DRV_VERSION);  in rz1000_init_one()
100 	dev_err(&pdev->dev, "failed to disable read-ahead on chipset.\n");  in rz1000_init_one()
102 	return -ENODEV;  in rz1000_init_one()
116 	   must stop as any progress risks data loss */  in rz1000_reinit_one()
146 MODULE_DESCRIPTION("low-level driver for RZ1000 PCI ATA");