[libata] Delete pata_it8172 driver

This MIPS platform is going away.

Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/ata/Kconfig

@@ -288,15 +288,6 @@ config PATA_ISAPNP
 
 	  If unsure, say N.
 
-config PATA_IT8172
-	tristate "IT8172 PATA support (Very Experimental)"
-	depends on PCI && EXPERIMENTAL
-	help
-	  This option enables support for the ITE 8172 PATA controller
-	  via the new ATA layer.
-
-	  If unsure, say N.
-
 config PATA_IT821X
 	tristate "IT821x PATA support (Experimental)"
 	depends on PCI && EXPERIMENTAL

drivers/ata/Makefile

@@ -32,7 +32,6 @@ obj-$(CONFIG_PATA_HPT37X)	+= pata_hpt37x.o
 obj-$(CONFIG_PATA_HPT3X2N)	+= pata_hpt3x2n.o
 obj-$(CONFIG_PATA_HPT3X3)	+= pata_hpt3x3.o
 obj-$(CONFIG_PATA_ISAPNP)	+= pata_isapnp.o
-obj-$(CONFIG_PATA_IT8172)	+= pata_it8172.o
 obj-$(CONFIG_PATA_IT821X)	+= pata_it821x.o
 obj-$(CONFIG_PATA_JMICRON)	+= pata_jmicron.o
 obj-$(CONFIG_PATA_NETCELL)	+= pata_netcell.o

drivers/ata/pata_it8172.c

@@ -1,288 +0,0 @@
-/*
- * pata_it8172.c 	- IT8172 PATA for new ATA layer
- *			  (C) 2005 Red Hat Inc
- *			  Alan Cox <alan@redhat.com>
- *
- * Based heavily on
- *
- * BRIEF MODULE DESCRIPTION
- *      IT8172 IDE controller support
- *
- * Copyright 2000 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- *              stevel@mvista.com or source@mvista.com
- *
- *  This program is free software; you can redistribute  it and/or modify it
- *  under  the terms of  the GNU General  Public License as published by the
- *  Free Software Foundation;  either version 2 of the  License, or (at your
- *  option) any later version.
- *
- *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
- *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
- *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
- *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the  GNU General Public License along
- *  with this program; if not, write  to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	TODO
- *	Check for errata
- *	See if we really need to force native mode
- *	PIO timings (also lacking in original)
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/blkdev.h>
-#include <linux/delay.h>
-#include <scsi/scsi_host.h>
-#include <linux/libata.h>
-
-#define DRV_NAME "pata_it8172"
-#define DRV_VERSION "0.3.1"
-
-static int it8172_pre_reset(struct ata_port *ap)
-{
-	static const struct pci_bits it8172_enable_bits[] = {
-		{ 0x00, 0, 0x00, 0x00 },
-		{ 0x40, 1, 0x00, 0x01 }
-	};
-
-	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
-
-	if (ap->port_no && !pci_test_config_bits(pdev, &it8172_enable_bits[ap->port_no])) {
-		ata_port_disable(ap);
-		printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
-		return 0;
-	}
-	ap->cbl = ATA_CBL_PATA40;
-	return ata_std_prereset(ap);
-}
-
-static void it8172_error_handler(struct ata_port *ap)
-{
-	ata_bmdma_drive_eh(ap, it8172_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
-}
-
-/**
- *	it8172_set_pio_timing	-	set initial PIO mode data
- *	@ap: ATA interface
- *	@adev: ATA device
- *
- *	Called by both the pio and dma setup functions to set the controller
- *	timings for PIO transfers. We must load both the mode number and
- *	timing values into the controller.
- */
-
-static void it8172_set_pio_timing(struct ata_port *ap, struct ata_device *adev, int pio)
-{
-	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
-	u16 reg40;
-
-	pci_read_config_word(pdev, 0x40, &reg40);
-
-	/*
-	 * FIX! The DIOR/DIOW pulse width and recovery times in port 0x44
-	 * are being left at the default values of 8 PCI clocks (242 nsec
-	 * for a 33 MHz clock). These can be safely shortened at higher
-	 * PIO modes. The DIOR/DIOW pulse width and recovery times only
-	 * apply to PIO modes, not to the DMA modes.
-	 */
-
-	/*
-	 * Enable port 0x44. The IT8172G spec is confused; it calls
-	 * this register the "Slave IDE Timing Register", but in fact,
-	 * it controls timing for both master and slave drives.
-	 */
-
-	reg40 |= 0x4000;
-	if (adev->devno) {
-		reg40 &= 0xC006;
-		if (pio > 1)
-			/* Enable prefetch and IORDY sample-point */
-			reg40 |= 0x0060;
-	} else {
-		reg40 &= 0xC060;
-		if (pio > 1)
-			/* Enable prefetch and IORDY sample-point */
-			reg40 |= 0x0006;
-	}
-	/* Write back the enables */
-	pci_write_config_word(pdev, 0x40, reg40);
-}
-
-/**
- *	it8172_set_piomode	-	set initial PIO mode data
- *	@ap: ATA interface
- *	@adev: ATA device
- *
- *	Called to do the PIO mode setup. We use a shared helper for this
- *	as the DMA setup must also adjust the PIO timing information.
- */
-
-static void it8172_set_piomode(struct ata_port *ap, struct ata_device *adev)
-{
-	it8172_set_pio_timing(ap, adev, adev->pio_mode - XFER_PIO_0);
-}
-
-/**
- *	it8172_set_dmamode	-	set initial DMA mode data
- *	@ap: ATA interface
- *	@adev: ATA device
- *
- *	Called to do the DMA mode setup. We must tune an appropriate PIO
- *	mode to match.
- */
-
-static void it8172_set_dmamode(struct ata_port *ap, struct ata_device *adev)
-{
-	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
-	int dn = (2 * ap->port_no) + adev->devno;
-	u8 reg48, reg4a;
-	int pio;
-
-	static const int pio_map[] = { 1, 3, 4};
-	/*
-	 * Setting the DMA cycle time to 2 or 3 PCI clocks (60 and 91 nsec
-	 * at 33 MHz PCI clock) seems to cause BadCRC errors during DMA
-	 * transfers on some drives, even though both numbers meet the minimum
-	 * ATAPI-4 spec of 73 and 54 nsec for UDMA 1 and 2 respectively.
-	 * So the faster times are just commented out here. The good news is
-	 * that the slower cycle time has very little affect on transfer
-	 * performance.
-	 */
-
-	pci_read_config_byte(pdev, 0x48, &reg48);
-	pci_read_config_byte(pdev, 0x4A, &reg4a);
-
- 	reg4a &= ~(3 << (4 * dn));
-
-	if (adev->dma_mode >= XFER_UDMA_0) {
-		reg48 |= 1 << dn;
-#ifdef UDMA_TIMING_SET
-		reg4a |= ((adev->dma_mode - XFER_UDMA_0) << (4 * dn));
-#endif
-	 	pio = 4;
-	} else  {
-		pio = pio_map[adev->dma_mode - XFER_MW_DMA_0];
-		reg48 &= ~ (1 << dn);
-	}
-	pci_write_config_byte(pdev, 0x48, reg48);
-	pci_write_config_byte(pdev, 0x4A, reg4a);
- 	it8172_set_pio_timing(ap, adev, pio);
-
-}
-
-static struct scsi_host_template it8172_sht = {
-	.module			= THIS_MODULE,
-	.name			= DRV_NAME,
-	.ioctl			= ata_scsi_ioctl,
-	.queuecommand		= ata_scsi_queuecmd,
-	.can_queue		= ATA_DEF_QUEUE,
-	.this_id		= ATA_SHT_THIS_ID,
-	.sg_tablesize		= LIBATA_MAX_PRD,
-	.max_sectors		= ATA_MAX_SECTORS,
-	.cmd_per_lun		= ATA_SHT_CMD_PER_LUN,
-	.emulated		= ATA_SHT_EMULATED,
-	.use_clustering		= ATA_SHT_USE_CLUSTERING,
-	.proc_name		= DRV_NAME,
-	.dma_boundary		= ATA_DMA_BOUNDARY,
-	.slave_configure	= ata_scsi_slave_config,
-	.bios_param		= ata_std_bios_param,
-};
-
-static struct ata_port_operations it8172_port_ops = {
-	.port_disable	= ata_port_disable,
-	.set_piomode	= it8172_set_piomode,
-	.set_dmamode	= it8172_set_dmamode,
-	.mode_filter	= ata_pci_default_filter,
-
-	.tf_load	= ata_tf_load,
-	.tf_read	= ata_tf_read,
-	.check_status 	= ata_check_status,
-	.exec_command	= ata_exec_command,
-	.dev_select 	= ata_std_dev_select,
-
-	.freeze		= ata_bmdma_freeze,
-	.thaw		= ata_bmdma_thaw,
-	.error_handler	= it8172_error_handler,
-	.post_internal_cmd = ata_bmdma_post_internal_cmd,
-
-	.bmdma_setup 	= ata_bmdma_setup,
-	.bmdma_start 	= ata_bmdma_start,
-	.bmdma_stop	= ata_bmdma_stop,
-	.bmdma_status 	= ata_bmdma_status,
-
-	.qc_prep 	= ata_qc_prep,
-	.qc_issue	= ata_qc_issue_prot,
-	.eng_timeout	= ata_eng_timeout,
-	.data_xfer	= ata_pio_data_xfer,
-
-	.irq_handler	= ata_interrupt,
-	.irq_clear	= ata_bmdma_irq_clear,
-
-	.port_start	= ata_port_start,
-	.port_stop	= ata_port_stop,
-	.host_stop	= ata_host_stop
-};
-
-static int it8172_init_one(struct pci_dev *dev, const struct pci_device_id *id)
-{
-	static struct ata_port_info info = {
-		.sht = &it8172_sht,
-		.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
-		.pio_mask = 0x1f,
-		.mwdma_mask = 0x06,	/* No MWDMA0 support */
-		.udma_mask = 0x7,
-		.port_ops = &it8172_port_ops
-	};
-	static struct ata_port_info *port_info[2] = { &info, &info };
-
-        if ((!(PCI_FUNC(dev->devfn) & 1) ||
-            (!((dev->class >> 8) == PCI_CLASS_STORAGE_IDE))))
-		return -ENODEV; /* IT8172 is more than an IDE controller */
-
-	return ata_pci_init_one(dev, port_info, 2);
-}
-
-static struct pci_device_id it8172[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_IT8172G), },
-	{ 0, },
-};
-
-static struct pci_driver it8172_pci_driver = {
-	.name 		= DRV_NAME,
-	.id_table	= it8172,
-	.probe 		= it8172_init_one,
-	.remove		= ata_pci_remove_one
-};
-
-static int __init it8172_init(void)
-{
-	return pci_register_driver(&it8172_pci_driver);
-}
-
-
-static void __exit it8172_exit(void)
-{
-	pci_unregister_driver(&it8172_pci_driver);
-}
-
-
-MODULE_AUTHOR("Alan Cox");
-MODULE_DESCRIPTION("low-level driver for ITE IT8172");
-MODULE_LICENSE("GPL");
-MODULE_DEVICE_TABLE(pci, it8172);
-MODULE_VERSION(DRV_VERSION);
-
-module_init(it8172_init);
-module_exit(it8172_exit);