ide: remove the legacy ide driver

The legay ide driver has been replace with libata starting in 2003 and has
been scheduled for removal for a while.  Finally kill it off so that we
can start cleaning up various bits of cruft it forced on the block layer.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

MAINTAINERS

@@ -8763,22 +8763,6 @@ L:	linux-i2c@vger.kernel.org
 S:	Maintained
 F:	drivers/i2c/busses/i2c-icy.c
 
-IDE SUBSYSTEM
-M:	"David S. Miller" <davem@davemloft.net>
-L:	linux-ide@vger.kernel.org
-S:	Maintained
-Q:	http://patchwork.ozlabs.org/project/linux-ide/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide.git
-F:	Documentation/ide/
-F:	drivers/ide/
-F:	include/linux/ide.h
-
-IDE/ATAPI DRIVERS
-L:	linux-ide@vger.kernel.org
-S:	Orphan
-F:	Documentation/cdrom/ide-cd.rst
-F:	drivers/ide/ide-cd*
-
 IDEAPAD LAPTOP EXTRAS DRIVER
 M:	Ike Panhc <ike.pan@canonical.com>
 L:	platform-driver-x86@vger.kernel.org

drivers/Kconfig

@@ -33,8 +33,6 @@ source "drivers/nvme/Kconfig"
 
 source "drivers/misc/Kconfig"
 
-source "drivers/ide/Kconfig"
-
 source "drivers/scsi/Kconfig"
 
 source "drivers/ata/Kconfig"

drivers/Makefile

@@ -78,7 +78,6 @@ obj-$(CONFIG_CXL_BUS)		+= cxl/
 obj-$(CONFIG_DMA_SHARED_BUFFER) += dma-buf/
 obj-$(CONFIG_NUBUS)		+= nubus/
 obj-y				+= macintosh/
-obj-$(CONFIG_IDE)		+= ide/
 obj-y				+= scsi/
 obj-y				+= nvme/
 obj-$(CONFIG_ATA)		+= ata/

drivers/ide/Makefile

-# SPDX-License-Identifier: GPL-2.0
-#
-# link order is important here
-#
-
-ide-core-y += ide.o ide-ioctls.o ide-io.o ide-iops.o ide-lib.o ide-probe.o \
-	      ide-taskfile.o ide-pm.o ide-park.o ide-sysfs.o ide-devsets.o \
-	      ide-io-std.o ide-eh.o
-
-# core IDE code
-ide-core-$(CONFIG_IDE_XFER_MODE)	+= ide-pio-blacklist.o ide-xfer-mode.o
-ide-core-$(CONFIG_IDE_TIMINGS)		+= ide-timings.o
-ide-core-$(CONFIG_IDE_ATAPI)		+= ide-atapi.o
-ide-core-$(CONFIG_BLK_DEV_IDEPCI)	+= setup-pci.o
-ide-core-$(CONFIG_BLK_DEV_IDEDMA)	+= ide-dma.o
-ide-core-$(CONFIG_BLK_DEV_IDEDMA_SFF)	+= ide-dma-sff.o
-ide-core-$(CONFIG_IDE_PROC_FS)		+= ide-proc.o
-ide-core-$(CONFIG_BLK_DEV_IDEACPI)	+= ide-acpi.o
-ide-core-$(CONFIG_IDE_LEGACY)		+= ide-legacy.o
-
-obj-$(CONFIG_IDE)			+= ide-core.o
-
-obj-$(CONFIG_BLK_DEV_ALI14XX)		+= ali14xx.o
-obj-$(CONFIG_BLK_DEV_UMC8672)		+= umc8672.o
-obj-$(CONFIG_BLK_DEV_DTC2278)		+= dtc2278.o
-obj-$(CONFIG_BLK_DEV_HT6560B)		+= ht6560b.o
-obj-$(CONFIG_BLK_DEV_QD65XX)		+= qd65xx.o
-obj-$(CONFIG_BLK_DEV_4DRIVES)		+= ide-4drives.o
-
-obj-$(CONFIG_BLK_DEV_GAYLE)		+= gayle.o
-obj-$(CONFIG_BLK_DEV_FALCON_IDE)	+= falconide.o
-obj-$(CONFIG_BLK_DEV_BUDDHA)		+= buddha.o
-
-obj-$(CONFIG_BLK_DEV_AEC62XX)		+= aec62xx.o
-obj-$(CONFIG_BLK_DEV_ALI15X3)		+= alim15x3.o
-obj-$(CONFIG_BLK_DEV_AMD74XX)		+= amd74xx.o
-obj-$(CONFIG_BLK_DEV_ATIIXP)		+= atiixp.o
-obj-$(CONFIG_BLK_DEV_CMD64X)		+= cmd64x.o
-obj-$(CONFIG_BLK_DEV_CS5520)		+= cs5520.o
-obj-$(CONFIG_BLK_DEV_CS5530)		+= cs5530.o
-obj-$(CONFIG_BLK_DEV_CS5535)		+= cs5535.o
-obj-$(CONFIG_BLK_DEV_CS5536)		+= cs5536.o
-obj-$(CONFIG_BLK_DEV_SC1200)		+= sc1200.o
-obj-$(CONFIG_BLK_DEV_CY82C693)		+= cy82c693.o
-obj-$(CONFIG_BLK_DEV_DELKIN)		+= delkin_cb.o
-obj-$(CONFIG_BLK_DEV_HPT366)		+= hpt366.o
-obj-$(CONFIG_BLK_DEV_IT8172)		+= it8172.o
-obj-$(CONFIG_BLK_DEV_IT8213)		+= it8213.o
-obj-$(CONFIG_BLK_DEV_IT821X)		+= it821x.o
-obj-$(CONFIG_BLK_DEV_JMICRON)		+= jmicron.o
-obj-$(CONFIG_BLK_DEV_NS87415)		+= ns87415.o
-obj-$(CONFIG_BLK_DEV_OPTI621)		+= opti621.o
-obj-$(CONFIG_BLK_DEV_PDC202XX_OLD)	+= pdc202xx_old.o
-obj-$(CONFIG_BLK_DEV_PDC202XX_NEW)	+= pdc202xx_new.o
-obj-$(CONFIG_BLK_DEV_PIIX)		+= piix.o
-obj-$(CONFIG_BLK_DEV_RZ1000)		+= rz1000.o
-obj-$(CONFIG_BLK_DEV_SVWKS)		+= serverworks.o
-obj-$(CONFIG_BLK_DEV_SIIMAGE)		+= siimage.o
-obj-$(CONFIG_BLK_DEV_SIS5513)		+= sis5513.o
-obj-$(CONFIG_BLK_DEV_SL82C105)		+= sl82c105.o
-obj-$(CONFIG_BLK_DEV_SLC90E66)		+= slc90e66.o
-obj-$(CONFIG_BLK_DEV_TC86C001)		+= tc86c001.o
-obj-$(CONFIG_BLK_DEV_TRIFLEX)		+= triflex.o
-obj-$(CONFIG_BLK_DEV_TRM290)		+= trm290.o
-obj-$(CONFIG_BLK_DEV_VIA82CXXX)		+= via82cxxx.o
-
-# Must appear at the end of the block
-obj-$(CONFIG_BLK_DEV_GENERIC)		+= ide-pci-generic.o
-
-obj-$(CONFIG_IDEPCI_PCIBUS_ORDER)	+= ide-scan-pci.o
-
-obj-$(CONFIG_BLK_DEV_CMD640)		+= cmd640.o
-
-obj-$(CONFIG_BLK_DEV_IDE_PMAC)		+= pmac.o
-
-obj-$(CONFIG_IDE_GENERIC)		+= ide-generic.o
-obj-$(CONFIG_BLK_DEV_IDEPNP)		+= ide-pnp.o
-
-ide-gd_mod-y += ide-gd.o
-ide-cd_mod-y += ide-cd.o ide-cd_ioctl.o ide-cd_verbose.o
-
-ifeq ($(CONFIG_IDE_GD_ATA), y)
-	ide-gd_mod-y += ide-disk.o ide-disk_ioctl.o
-ifeq ($(CONFIG_IDE_PROC_FS), y)
-	ide-gd_mod-y += ide-disk_proc.o
-endif
-endif
-
-ifeq ($(CONFIG_IDE_GD_ATAPI), y)
-	ide-gd_mod-y += ide-floppy.o ide-floppy_ioctl.o
-ifeq ($(CONFIG_IDE_PROC_FS), y)
-	ide-gd_mod-y += ide-floppy_proc.o
-endif
-endif
-
-obj-$(CONFIG_IDE_GD)			+= ide-gd_mod.o
-obj-$(CONFIG_BLK_DEV_IDECD)		+= ide-cd_mod.o
-obj-$(CONFIG_BLK_DEV_IDETAPE)		+= ide-tape.o
-
-obj-$(CONFIG_BLK_DEV_IDECS)		+= ide-cs.o
-
-obj-$(CONFIG_BLK_DEV_PLATFORM)		+= ide_platform.o
-
-obj-$(CONFIG_BLK_DEV_IDE_ICSIDE)	+= icside.o
-obj-$(CONFIG_BLK_DEV_IDE_RAPIDE)	+= rapide.o
-obj-$(CONFIG_BLK_DEV_PALMCHIP_BK3710)	+= palm_bk3710.o
-
-obj-$(CONFIG_BLK_DEV_IDE_TX4938)	+= tx4938ide.o
-obj-$(CONFIG_BLK_DEV_IDE_TX4939)	+= tx4939ide.o

drivers/ide/aec62xx.c

-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 1999-2002	Andre Hedrick <andre@linux-ide.org>
- * Copyright (C) 2007		MontaVista Software, Inc. <source@mvista.com>
- *
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-#include <linux/init.h>
-
-#include <asm/io.h>
-
-#define DRV_NAME "aec62xx"
-
-struct chipset_bus_clock_list_entry {
-	u8 xfer_speed;
-	u8 chipset_settings;
-	u8 ultra_settings;
-};
-
-static const struct chipset_bus_clock_list_entry aec6xxx_33_base [] = {
-	{	XFER_UDMA_6,	0x31,	0x07	},
-	{	XFER_UDMA_5,	0x31,	0x06	},
-	{	XFER_UDMA_4,	0x31,	0x05	},
-	{	XFER_UDMA_3,	0x31,	0x04	},
-	{	XFER_UDMA_2,	0x31,	0x03	},
-	{	XFER_UDMA_1,	0x31,	0x02	},
-	{	XFER_UDMA_0,	0x31,	0x01	},
-
-	{	XFER_MW_DMA_2,	0x31,	0x00	},
-	{	XFER_MW_DMA_1,	0x31,	0x00	},
-	{	XFER_MW_DMA_0,	0x0a,	0x00	},
-	{	XFER_PIO_4,	0x31,	0x00	},
-	{	XFER_PIO_3,	0x33,	0x00	},
-	{	XFER_PIO_2,	0x08,	0x00	},
-	{	XFER_PIO_1,	0x0a,	0x00	},
-	{	XFER_PIO_0,	0x00,	0x00	},
-	{	0,		0x00,	0x00	}
-};
-
-static const struct chipset_bus_clock_list_entry aec6xxx_34_base [] = {
-	{	XFER_UDMA_6,	0x41,	0x06	},
-	{	XFER_UDMA_5,	0x41,	0x05	},
-	{	XFER_UDMA_4,	0x41,	0x04	},
-	{	XFER_UDMA_3,	0x41,	0x03	},
-	{	XFER_UDMA_2,	0x41,	0x02	},
-	{	XFER_UDMA_1,	0x41,	0x01	},
-	{	XFER_UDMA_0,	0x41,	0x01	},
-
-	{	XFER_MW_DMA_2,	0x41,	0x00	},
-	{	XFER_MW_DMA_1,	0x42,	0x00	},
-	{	XFER_MW_DMA_0,	0x7a,	0x00	},
-	{	XFER_PIO_4,	0x41,	0x00	},
-	{	XFER_PIO_3,	0x43,	0x00	},
-	{	XFER_PIO_2,	0x78,	0x00	},
-	{	XFER_PIO_1,	0x7a,	0x00	},
-	{	XFER_PIO_0,	0x70,	0x00	},
-	{	0,		0x00,	0x00	}
-};
-
-/*
- * TO DO: active tuning and correction of cards without a bios.
- */
-static u8 pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
-{
-	for ( ; chipset_table->xfer_speed ; chipset_table++)
-		if (chipset_table->xfer_speed == speed) {
-			return chipset_table->chipset_settings;
-		}
-	return chipset_table->chipset_settings;
-}
-
-static u8 pci_bus_clock_list_ultra (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
-{
-	for ( ; chipset_table->xfer_speed ; chipset_table++)
-		if (chipset_table->xfer_speed == speed) {
-			return chipset_table->ultra_settings;
-		}
-	return chipset_table->ultra_settings;
-}
-
-static void aec6210_set_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	struct pci_dev *dev	= to_pci_dev(hwif->dev);
-	struct ide_host *host	= pci_get_drvdata(dev);
-	struct chipset_bus_clock_list_entry *bus_clock = host->host_priv;
-	u16 d_conf		= 0;
-	u8 ultra = 0, ultra_conf = 0;
-	u8 tmp0 = 0, tmp1 = 0, tmp2 = 0;
-	const u8 speed = drive->dma_mode;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	/* 0x40|(2*drive->dn): Active, 0x41|(2*drive->dn): Recovery */
-	pci_read_config_word(dev, 0x40|(2*drive->dn), &d_conf);
-	tmp0 = pci_bus_clock_list(speed, bus_clock);
-	d_conf = ((tmp0 & 0xf0) << 4) | (tmp0 & 0xf);
-	pci_write_config_word(dev, 0x40|(2*drive->dn), d_conf);
-
-	tmp1 = 0x00;
-	tmp2 = 0x00;
-	pci_read_config_byte(dev, 0x54, &ultra);
-	tmp1 = ((0x00 << (2*drive->dn)) | (ultra & ~(3 << (2*drive->dn))));
-	ultra_conf = pci_bus_clock_list_ultra(speed, bus_clock);
-	tmp2 = ((ultra_conf << (2*drive->dn)) | (tmp1 & ~(3 << (2*drive->dn))));
-	pci_write_config_byte(dev, 0x54, tmp2);
-	local_irq_restore(flags);
-}
-
-static void aec6260_set_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	struct pci_dev *dev	= to_pci_dev(hwif->dev);
-	struct ide_host *host	= pci_get_drvdata(dev);
-	struct chipset_bus_clock_list_entry *bus_clock = host->host_priv;
-	u8 unit			= drive->dn & 1;
-	u8 tmp1 = 0, tmp2 = 0;
-	u8 ultra = 0, drive_conf = 0, ultra_conf = 0;
-	const u8 speed = drive->dma_mode;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	/* high 4-bits: Active, low 4-bits: Recovery */
-	pci_read_config_byte(dev, 0x40|drive->dn, &drive_conf);
-	drive_conf = pci_bus_clock_list(speed, bus_clock);
-	pci_write_config_byte(dev, 0x40|drive->dn, drive_conf);
-
-	pci_read_config_byte(dev, (0x44|hwif->channel), &ultra);
-	tmp1 = ((0x00 << (4*unit)) | (ultra & ~(7 << (4*unit))));
-	ultra_conf = pci_bus_clock_list_ultra(speed, bus_clock);
-	tmp2 = ((ultra_conf << (4*unit)) | (tmp1 & ~(7 << (4*unit))));
-	pci_write_config_byte(dev, (0x44|hwif->channel), tmp2);
-	local_irq_restore(flags);
-}
-
-static void aec_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	drive->dma_mode = drive->pio_mode;
-	hwif->port_ops->set_dma_mode(hwif, drive);
-}
-
-static int init_chipset_aec62xx(struct pci_dev *dev)
-{
-	/* These are necessary to get AEC6280 Macintosh cards to work */
-	if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) ||
-	    (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)) {
-		u8 reg49h = 0, reg4ah = 0;
-		/* Clear reset and test bits.  */
-		pci_read_config_byte(dev, 0x49, &reg49h);
-		pci_write_config_byte(dev, 0x49, reg49h & ~0x30);
-		/* Enable chip interrupt output.  */
-		pci_read_config_byte(dev, 0x4a, &reg4ah);
-		pci_write_config_byte(dev, 0x4a, reg4ah & ~0x01);
-		/* Enable burst mode. */
-		pci_read_config_byte(dev, 0x4a, &reg4ah);
-		pci_write_config_byte(dev, 0x4a, reg4ah | 0x80);
-	}
-
-	return 0;
-}
-
-static u8 atp86x_cable_detect(ide_hwif_t *hwif)
-{
-	struct pci_dev *dev = to_pci_dev(hwif->dev);
-	u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01;
-
-	pci_read_config_byte(dev, 0x49, &ata66);
-
-	return (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
-}
-
-static const struct ide_port_ops atp850_port_ops = {
-	.set_pio_mode		= aec_set_pio_mode,
-	.set_dma_mode		= aec6210_set_mode,
-};
-
-static const struct ide_port_ops atp86x_port_ops = {
-	.set_pio_mode		= aec_set_pio_mode,
-	.set_dma_mode		= aec6260_set_mode,
-	.cable_detect		= atp86x_cable_detect,
-};
-
-static const struct ide_port_info aec62xx_chipsets[] = {
-	{	/* 0: AEC6210 */
-		.name		= DRV_NAME,
-		.init_chipset	= init_chipset_aec62xx,
-		.enablebits	= {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
-		.port_ops	= &atp850_port_ops,
-		.host_flags	= IDE_HFLAG_SERIALIZE |
-				  IDE_HFLAG_NO_ATAPI_DMA |
-				  IDE_HFLAG_NO_DSC |
-				  IDE_HFLAG_OFF_BOARD,
-		.pio_mask	= ATA_PIO4,
-		.mwdma_mask	= ATA_MWDMA2,
-		.udma_mask	= ATA_UDMA2,
-	},
-	{	/* 1: AEC6260 */
-		.name		= DRV_NAME,
-		.init_chipset	= init_chipset_aec62xx,
-		.port_ops	= &atp86x_port_ops,
-		.host_flags	= IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_NO_AUTODMA |
-				  IDE_HFLAG_OFF_BOARD,
-		.pio_mask	= ATA_PIO4,
-		.mwdma_mask	= ATA_MWDMA2,
-		.udma_mask	= ATA_UDMA4,
-	},
-	{	/* 2: AEC6260R */
-		.name		= DRV_NAME,
-		.init_chipset	= init_chipset_aec62xx,
-		.enablebits	= {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
-		.port_ops	= &atp86x_port_ops,
-		.host_flags	= IDE_HFLAG_NO_ATAPI_DMA |
-				  IDE_HFLAG_NON_BOOTABLE,
-		.pio_mask	= ATA_PIO4,
-		.mwdma_mask	= ATA_MWDMA2,
-		.udma_mask	= ATA_UDMA4,
-	},
-	{	/* 3: AEC6280 */
-		.name		= DRV_NAME,
-		.init_chipset	= init_chipset_aec62xx,
-		.port_ops	= &atp86x_port_ops,
-		.host_flags	= IDE_HFLAG_NO_ATAPI_DMA |
-				  IDE_HFLAG_OFF_BOARD,
-		.pio_mask	= ATA_PIO4,
-		.mwdma_mask	= ATA_MWDMA2,
-		.udma_mask	= ATA_UDMA5,
-	},
-	{	/* 4: AEC6280R */
-		.name		= DRV_NAME,
-		.init_chipset	= init_chipset_aec62xx,
-		.enablebits	= {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
-		.port_ops	= &atp86x_port_ops,
-		.host_flags	= IDE_HFLAG_NO_ATAPI_DMA |
-				  IDE_HFLAG_OFF_BOARD,
-		.pio_mask	= ATA_PIO4,
-		.mwdma_mask	= ATA_MWDMA2,
-		.udma_mask	= ATA_UDMA5,
-	}
-};
-
-/**
- *	aec62xx_init_one	-	called when a AEC is found
- *	@dev: the aec62xx device
- *	@id: the matching pci id
- *
- *	Called when the PCI registration layer (or the IDE initialization)
- *	finds a device matching our IDE device tables.
- *
- *	NOTE: since we're going to modify the 'name' field for AEC-6[26]80[R]
- *	chips, pass a local copy of 'struct ide_port_info' down the call chain.
- */
-
-static int aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
-{
-	const struct chipset_bus_clock_list_entry *bus_clock;
-	struct ide_port_info d;
-	u8 idx = id->driver_data;
-	int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
-	int err;
-
-	if (bus_speed <= 33)
-		bus_clock = aec6xxx_33_base;
-	else
-		bus_clock = aec6xxx_34_base;
-
-	err = pci_enable_device(dev);
-	if (err)
-		return err;
-
-	d = aec62xx_chipsets[idx];
-
-	if (idx == 3 || idx == 4) {
-		unsigned long dma_base = pci_resource_start(dev, 4);
-
-		if (inb(dma_base + 2) & 0x10) {
-			printk(KERN_INFO DRV_NAME " %s: AEC6880%s card detected"
-				"\n", pci_name(dev), (idx == 4) ? "R" : "");
-			d.udma_mask = ATA_UDMA6;
-		}
-	}
-
-	err = ide_pci_init_one(dev, &d, (void *)bus_clock);
-	if (err)
-		pci_disable_device(dev);
-
-	return err;
-}
-
-static void aec62xx_remove(struct pci_dev *dev)
-{
-	ide_pci_remove(dev);
-	pci_disable_device(dev);
-}
-
-static const struct pci_device_id aec62xx_pci_tbl[] = {
-	{ PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF), 0 },
-	{ PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860),   1 },
-	{ PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860R),  2 },
-	{ PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP865),   3 },
-	{ PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP865R),  4 },
-	{ 0, },
-};
-MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl);
-
-static struct pci_driver aec62xx_pci_driver = {
-	.name		= "AEC62xx_IDE",
-	.id_table	= aec62xx_pci_tbl,
-	.probe		= aec62xx_init_one,
-	.remove		= aec62xx_remove,
-	.suspend	= ide_pci_suspend,
-	.resume		= ide_pci_resume,
-};
-
-static int __init aec62xx_ide_init(void)
-{
-	return ide_pci_register_driver(&aec62xx_pci_driver);
-}
-
-static void __exit aec62xx_ide_exit(void)
-{
-	pci_unregister_driver(&aec62xx_pci_driver);
-}
-
-module_init(aec62xx_ide_init);
-module_exit(aec62xx_ide_exit);
-
-MODULE_AUTHOR("Andre Hedrick");
-MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE");
-MODULE_LICENSE("GPL");

drivers/ide/ali14xx.c

-// SPDX-License-Identifier: GPL-2.0-only
-/*
- *  Copyright (C) 1996  Linus Torvalds & author (see below)
- */
-
-/*
- * ALI M14xx chipset EIDE controller
- *
- * Works for ALI M1439/1443/1445/1487/1489 chipsets.
- *
- * Adapted from code developed by derekn@vw.ece.cmu.edu.  -ml
- * Derek's notes follow:
- *
- * I think the code should be pretty understandable,
- * but I'll be happy to (try to) answer questions.
- *
- * The critical part is in the setupDrive function.  The initRegisters
- * function doesn't seem to be necessary, but the DOS driver does it, so
- * I threw it in.
- *
- * I've only tested this on my system, which only has one disk.  I posted
- * it to comp.sys.linux.hardware, so maybe some other people will try it
- * out.
- *
- * Derek Noonburg  (derekn@ece.cmu.edu)
- * 95-sep-26
- *
- * Update 96-jul-13:
- *
- * I've since upgraded to two disks and a CD-ROM, with no trouble, and
- * I've also heard from several others who have used it successfully.
- * This driver appears to work with both the 1443/1445 and the 1487/1489
- * chipsets.  I've added support for PIO mode 4 for the 1487.  This
- * seems to work just fine on the 1443 also, although I'm not sure it's
- * advertised as supporting mode 4.  (I've been running a WDC AC21200 in
- * mode 4 for a while now with no trouble.)  -Derek
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
-#include <linux/ide.h>
-#include <linux/init.h>
-
-#include <asm/io.h>
-
-#define DRV_NAME "ali14xx"
-
-/* port addresses for auto-detection */
-#define ALI_NUM_PORTS 4
-static const int ports[ALI_NUM_PORTS] __initconst =
-	{ 0x074, 0x0f4, 0x034, 0x0e4 };
-
-/* register initialization data */
-typedef struct { u8 reg, data; } RegInitializer;
-
-static const RegInitializer initData[] __initconst = {
-	{0x01, 0x0f}, {0x02, 0x00}, {0x03, 0x00}, {0x04, 0x00},
-	{0x05, 0x00}, {0x06, 0x00}, {0x07, 0x2b}, {0x0a, 0x0f},
-	{0x25, 0x00}, {0x26, 0x00}, {0x27, 0x00}, {0x28, 0x00},
-	{0x29, 0x00}, {0x2a, 0x00}, {0x2f, 0x00}, {0x2b, 0x00},
-	{0x2c, 0x00}, {0x2d, 0x00}, {0x2e, 0x00}, {0x30, 0x00},
-	{0x31, 0x00}, {0x32, 0x00}, {0x33, 0x00}, {0x34, 0xff},
-	{0x35, 0x03}, {0x00, 0x00}
-};
-
-/* timing parameter registers for each drive */
-static struct { u8 reg1, reg2, reg3, reg4; } regTab[4] = {
-	{0x03, 0x26, 0x04, 0x27},     /* drive 0 */
-	{0x05, 0x28, 0x06, 0x29},     /* drive 1 */
-	{0x2b, 0x30, 0x2c, 0x31},     /* drive 2 */
-	{0x2d, 0x32, 0x2e, 0x33},     /* drive 3 */
-};
-
-static int basePort;	/* base port address */
-static int regPort;	/* port for register number */
-static int dataPort;	/* port for register data */
-static u8 regOn;	/* output to base port to access registers */
-static u8 regOff;	/* output to base port to close registers */
-
-/*------------------------------------------------------------------------*/
-
-/*
- * Read a controller register.
- */
-static inline u8 inReg(u8 reg)
-{
-	outb_p(reg, regPort);
-	return inb(dataPort);
-}
-
-/*
- * Write a controller register.
- */
-static void outReg(u8 data, u8 reg)
-{
-	outb_p(reg, regPort);
-	outb_p(data, dataPort);
-}
-
-static DEFINE_SPINLOCK(ali14xx_lock);
-
-/*
- * Set PIO mode for the specified drive.
- * This function computes timing parameters
- * and sets controller registers accordingly.
- */
-static void ali14xx_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	int driveNum;
-	int time1, time2;
-	u8 param1, param2, param3, param4;
-	unsigned long flags;
-	int bus_speed = ide_vlb_clk ? ide_vlb_clk : 50;
-	const u8 pio = drive->pio_mode - XFER_PIO_0;
-	struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio);
-
-	/* calculate timing, according to PIO mode */
-	time1 = ide_pio_cycle_time(drive, pio);
-	time2 = t->active;
-	param3 = param1 = (time2 * bus_speed + 999) / 1000;
-	param4 = param2 = (time1 * bus_speed + 999) / 1000 - param1;
-	if (pio < 3) {
-		param3 += 8;
-		param4 += 8;
-	}
-	printk(KERN_DEBUG "%s: PIO mode%d, t1=%dns, t2=%dns, cycles = %d+%d, %d+%d\n",
-		drive->name, pio, time1, time2, param1, param2, param3, param4);
-
-	/* stuff timing parameters into controller registers */
-	driveNum = (drive->hwif->index << 1) + (drive->dn & 1);
-	spin_lock_irqsave(&ali14xx_lock, flags);
-	outb_p(regOn, basePort);
-	outReg(param1, regTab[driveNum].reg1);
-	outReg(param2, regTab[driveNum].reg2);
-	outReg(param3, regTab[driveNum].reg3);
-	outReg(param4, regTab[driveNum].reg4);
-	outb_p(regOff, basePort);
-	spin_unlock_irqrestore(&ali14xx_lock, flags);
-}
-
-/*
- * Auto-detect the IDE controller port.
- */
-static int __init findPort(void)
-{
-	int i;
-	u8 t;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	for (i = 0; i < ALI_NUM_PORTS; ++i) {
-		basePort = ports[i];
-		regOff = inb(basePort);
-		for (regOn = 0x30; regOn <= 0x33; ++regOn) {
-			outb_p(regOn, basePort);
-			if (inb(basePort) == regOn) {
-				regPort = basePort + 4;
-				dataPort = basePort + 8;
-				t = inReg(0) & 0xf0;
-				outb_p(regOff, basePort);
-				local_irq_restore(flags);
-				if (t != 0x50)
-					return 0;
-				return 1;  /* success */
-			}
-		}
-		outb_p(regOff, basePort);
-	}
-	local_irq_restore(flags);
-	return 0;
-}
-
-/*
- * Initialize controller registers with default values.
- */
-static int __init initRegisters(void)
-{
-	const RegInitializer *p;
-	u8 t;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	outb_p(regOn, basePort);
-	for (p = initData; p->reg != 0; ++p)
-		outReg(p->data, p->reg);
-	outb_p(0x01, regPort);
-	t = inb(regPort) & 0x01;
-	outb_p(regOff, basePort);
-	local_irq_restore(flags);
-	return t;
-}
-
-static const struct ide_port_ops ali14xx_port_ops = {
-	.set_pio_mode		= ali14xx_set_pio_mode,
-};
-
-static const struct ide_port_info ali14xx_port_info = {
-	.name			= DRV_NAME,
-	.chipset		= ide_ali14xx,
-	.port_ops		= &ali14xx_port_ops,
-	.host_flags		= IDE_HFLAG_NO_DMA,
-	.pio_mask		= ATA_PIO4,
-};
-
-static int __init ali14xx_probe(void)
-{
-	printk(KERN_DEBUG "ali14xx: base=0x%03x, regOn=0x%02x.\n",
-			  basePort, regOn);
-
-	/* initialize controller registers */
-	if (!initRegisters()) {
-		printk(KERN_ERR "ali14xx: Chip initialization failed.\n");
-		return 1;
-	}
-
-	return ide_legacy_device_add(&ali14xx_port_info, 0);
-}
-
-static bool probe_ali14xx;
-
-module_param_named(probe, probe_ali14xx, bool, 0);
-MODULE_PARM_DESC(probe, "probe for ALI M14xx chipsets");
-
-static int __init ali14xx_init(void)
-{
-	if (probe_ali14xx == 0)
-		goto out;
-
-	/* auto-detect IDE controller port */
-	if (findPort()) {
-		if (ali14xx_probe())
-			return -ENODEV;
-		return 0;
-	}
-	printk(KERN_ERR "ali14xx: not found.\n");
-out:
-	return -ENODEV;
-}
-
-module_init(ali14xx_init);
-
-MODULE_AUTHOR("see local file");
-MODULE_DESCRIPTION("support of ALI 14XX IDE chipsets");
-MODULE_LICENSE("GPL");

drivers/ide/atiixp.c

-// SPDX-License-Identifier: GPL-2.0-only
-/*
- *  Copyright (C) 2003 ATI Inc. <hyu@ati.com>
- *  Copyright (C) 2004,2007 Bartlomiej Zolnierkiewicz
- */
-
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-#include <linux/init.h>
-
-#define DRV_NAME "atiixp"
-
-#define ATIIXP_IDE_PIO_TIMING		0x40
-#define ATIIXP_IDE_MDMA_TIMING		0x44
-#define ATIIXP_IDE_PIO_CONTROL		0x48
-#define ATIIXP_IDE_PIO_MODE		0x4a
-#define ATIIXP_IDE_UDMA_CONTROL		0x54
-#define ATIIXP_IDE_UDMA_MODE		0x56
-
-struct atiixp_ide_timing {
-	u8 command_width;
-	u8 recover_width;
-};
-
-static struct atiixp_ide_timing pio_timing[] = {
-	{ 0x05, 0x0d },
-	{ 0x04, 0x07 },
-	{ 0x03, 0x04 },
-	{ 0x02, 0x02 },
-	{ 0x02, 0x00 },
-};
-
-static struct atiixp_ide_timing mdma_timing[] = {
-	{ 0x07, 0x07 },
-	{ 0x02, 0x01 },
-	{ 0x02, 0x00 },
-};
-
-static DEFINE_SPINLOCK(atiixp_lock);
-
-/**
- *	atiixp_set_pio_mode	-	set host controller for PIO mode
- *	@hwif: port
- *	@drive: drive
- *
- *	Set the interface PIO mode.
- */
-
-static void atiixp_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	struct pci_dev *dev = to_pci_dev(hwif->dev);
-	unsigned long flags;
-	int timing_shift = (drive->dn ^ 1) * 8;
-	u32 pio_timing_data;
-	u16 pio_mode_data;
-	const u8 pio = drive->pio_mode - XFER_PIO_0;
-
-	spin_lock_irqsave(&atiixp_lock, flags);
-
-	pci_read_config_word(dev, ATIIXP_IDE_PIO_MODE, &pio_mode_data);
-	pio_mode_data &= ~(0x07 << (drive->dn * 4));
-	pio_mode_data |= (pio << (drive->dn * 4));
-	pci_write_config_word(dev, ATIIXP_IDE_PIO_MODE, pio_mode_data);
-
-	pci_read_config_dword(dev, ATIIXP_IDE_PIO_TIMING, &pio_timing_data);
-	pio_timing_data &= ~(0xff << timing_shift);
-	pio_timing_data |= (pio_timing[pio].recover_width << timing_shift) |
-		 (pio_timing[pio].command_width << (timing_shift + 4));
-	pci_write_config_dword(dev, ATIIXP_IDE_PIO_TIMING, pio_timing_data);
-
-	spin_unlock_irqrestore(&atiixp_lock, flags);
-}
-
-/**
- *	atiixp_set_dma_mode	-	set host controller for DMA mode
- *	@hwif: port
- *	@drive: drive
- *
- *	Set a ATIIXP host controller to the desired DMA mode.  This involves
- *	programming the right timing data into the PCI configuration space.
- */
-
-static void atiixp_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	struct pci_dev *dev = to_pci_dev(hwif->dev);
-	unsigned long flags;
-	int timing_shift = (drive->dn ^ 1) * 8;
-	u32 tmp32;
-	u16 tmp16;
-	u16 udma_ctl = 0;
-	const u8 speed = drive->dma_mode;
-
-	spin_lock_irqsave(&atiixp_lock, flags);
-
-	pci_read_config_word(dev, ATIIXP_IDE_UDMA_CONTROL, &udma_ctl);
-
-	if (speed >= XFER_UDMA_0) {
-		pci_read_config_word(dev, ATIIXP_IDE_UDMA_MODE, &tmp16);
-		tmp16 &= ~(0x07 << (drive->dn * 4));
-		tmp16 |= ((speed & 0x07) << (drive->dn * 4));
-		pci_write_config_word(dev, ATIIXP_IDE_UDMA_MODE, tmp16);
-
-		udma_ctl |= (1 << drive->dn);
-	} else if (speed >= XFER_MW_DMA_0) {
-		u8 i = speed & 0x03;
-
-		pci_read_config_dword(dev, ATIIXP_IDE_MDMA_TIMING, &tmp32);
-		tmp32 &= ~(0xff << timing_shift);
-		tmp32 |= (mdma_timing[i].recover_width << timing_shift) |
-			 (mdma_timing[i].command_width << (timing_shift + 4));
-		pci_write_config_dword(dev, ATIIXP_IDE_MDMA_TIMING, tmp32);
-
-		udma_ctl &= ~(1 << drive->dn);
-	}
-
-	pci_write_config_word(dev, ATIIXP_IDE_UDMA_CONTROL, udma_ctl);
-
-	spin_unlock_irqrestore(&atiixp_lock, flags);
-}
-
-static u8 atiixp_cable_detect(ide_hwif_t *hwif)
-{
-	struct pci_dev *pdev = to_pci_dev(hwif->dev);
-	u8 udma_mode = 0, ch = hwif->channel;
-
-	pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ch, &udma_mode);
-
-	if ((udma_mode & 0x07) >= 0x04 || (udma_mode & 0x70) >= 0x40)
-		return ATA_CBL_PATA80;
-	else
-		return ATA_CBL_PATA40;
-}
-
-static const struct ide_port_ops atiixp_port_ops = {
-	.set_pio_mode		= atiixp_set_pio_mode,
-	.set_dma_mode		= atiixp_set_dma_mode,
-	.cable_detect		= atiixp_cable_detect,
-};
-
-static const struct ide_port_info atiixp_pci_info[] = {
-	{	/* 0: IXP200/300/400/700 */
-		.name		= DRV_NAME,
-		.enablebits	= {{0x48,0x01,0x00}, {0x48,0x08,0x00}},
-		.port_ops	= &atiixp_port_ops,
-		.pio_mask	= ATA_PIO4,
-		.mwdma_mask	= ATA_MWDMA2,
-		.udma_mask	= ATA_UDMA5,
-	},
-	{	/* 1: IXP600 */
-		.name		= DRV_NAME,
-		.enablebits	= {{0x48,0x01,0x00}, {0x00,0x00,0x00}},
-		.port_ops	= &atiixp_port_ops,
-		.host_flags	= IDE_HFLAG_SINGLE,
-		.pio_mask	= ATA_PIO4,
-		.mwdma_mask	= ATA_MWDMA2,
-		.udma_mask	= ATA_UDMA5,
- 	},
-};
-
-/**
- *	atiixp_init_one	-	called when a ATIIXP is found
- *	@dev: the atiixp device
- *	@id: the matching pci id
- *
- *	Called when the PCI registration layer (or the IDE initialization)
- *	finds a device matching our IDE device tables.
- */
-
-static int atiixp_init_one(struct pci_dev *dev, const struct pci_device_id *id)
-{
-	return ide_pci_init_one(dev, &atiixp_pci_info[id->driver_data], NULL);
-}
-
-static const struct pci_device_id atiixp_pci_tbl[] = {
-	{ PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP200_IDE), 0 },
-	{ PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP300_IDE), 0 },
-	{ PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP400_IDE), 0 },
-	{ PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP600_IDE), 1 },
-	{ PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP700_IDE), 0 },
-	{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_HUDSON2_IDE), 0 },
-	{ 0, },
-};
-MODULE_DEVICE_TABLE(pci, atiixp_pci_tbl);
-
-static struct pci_driver atiixp_pci_driver = {
-	.name		= "ATIIXP_IDE",
-	.id_table	= atiixp_pci_tbl,
-	.probe		= atiixp_init_one,
-	.remove		= ide_pci_remove,
-	.suspend	= ide_pci_suspend,
-	.resume		= ide_pci_resume,
-};
-
-static int __init atiixp_ide_init(void)
-{
-	return ide_pci_register_driver(&atiixp_pci_driver);
-}
-
-static void __exit atiixp_ide_exit(void)
-{
-	pci_unregister_driver(&atiixp_pci_driver);
-}
-
-module_init(atiixp_ide_init);
-module_exit(atiixp_ide_exit);
-
-MODULE_AUTHOR("HUI YU");
-MODULE_DESCRIPTION("PCI driver module for ATI IXP IDE");
-MODULE_LICENSE("GPL");

drivers/ide/buddha.c

-/*
- *  Amiga Buddha, Catweasel and X-Surf IDE Driver
- *
- *	Copyright (C) 1997, 2001 by Geert Uytterhoeven and others
- *
- *  This driver was written based on the specifications in README.buddha and
- *  the X-Surf info from Inside_XSurf.txt available at
- *  http://www.jschoenfeld.com
- *
- *  This file is subject to the terms and conditions of the GNU General Public
- *  License.  See the file COPYING in the main directory of this archive for
- *  more details.
- *
- *  TODO:
- *    - test it :-)
- *    - tune the timings using the speed-register
- */
-
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/blkdev.h>
-#include <linux/zorro.h>
-#include <linux/ide.h>
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include <asm/amigahw.h>
-#include <asm/amigaints.h>
-
-
-    /*
-     *  The Buddha has 2 IDE interfaces, the Catweasel has 3, X-Surf has 2
-     */
-
-#define BUDDHA_NUM_HWIFS	2
-#define CATWEASEL_NUM_HWIFS	3
-#define XSURF_NUM_HWIFS         2
-
-#define MAX_NUM_HWIFS		3
-
-    /*
-     *  Bases of the IDE interfaces (relative to the board address)
-     */
-
-#define BUDDHA_BASE1	0x800
-#define BUDDHA_BASE2	0xa00
-#define BUDDHA_BASE3	0xc00
-
-#define XSURF_BASE1     0xb000 /* 2.5" Interface */
-#define XSURF_BASE2     0xd000 /* 3.5" Interface */
-
-static u_int buddha_bases[CATWEASEL_NUM_HWIFS] __initdata = {
-    BUDDHA_BASE1, BUDDHA_BASE2, BUDDHA_BASE3
-};
-
-static u_int xsurf_bases[XSURF_NUM_HWIFS] __initdata = {
-     XSURF_BASE1, XSURF_BASE2
-};
-
-    /*
-     *  Offsets from one of the above bases
-     */
-
-#define BUDDHA_CONTROL	0x11a
-
-    /*
-     *  Other registers
-     */
-
-#define BUDDHA_IRQ1	0xf00		/* MSB = 1, Harddisk is source of */
-#define BUDDHA_IRQ2	0xf40		/* interrupt */
-#define BUDDHA_IRQ3	0xf80
-
-#define XSURF_IRQ1      0x7e
-#define XSURF_IRQ2      0x7e
-
-static int buddha_irqports[CATWEASEL_NUM_HWIFS] __initdata = {
-    BUDDHA_IRQ1, BUDDHA_IRQ2, BUDDHA_IRQ3
-};
-
-static int xsurf_irqports[XSURF_NUM_HWIFS] __initdata = {
-    XSURF_IRQ1, XSURF_IRQ2
-};
-
-#define BUDDHA_IRQ_MR	0xfc0		/* master interrupt enable */
-
-
-    /*
-     *  Board information
-     */
-
-typedef enum BuddhaType_Enum {
-    BOARD_BUDDHA, BOARD_CATWEASEL, BOARD_XSURF
-} BuddhaType;
-
-static const char *buddha_board_name[] = { "Buddha", "Catweasel", "X-Surf" };
-
-    /*
-     *  Check and acknowledge the interrupt status
-     */
-
-static int buddha_test_irq(ide_hwif_t *hwif)
-{
-    unsigned char ch;
-
-    ch = z_readb(hwif->io_ports.irq_addr);
-    if (!(ch & 0x80))
-	    return 0;
-    return 1;
-}
-
-static void xsurf_clear_irq(ide_drive_t *drive)
-{
-    /*
-     * X-Surf needs 0 written to IRQ register to ensure ISA bit A11 stays at 0
-     */
-    z_writeb(0, drive->hwif->io_ports.irq_addr);
-}
-
-static void __init buddha_setup_ports(struct ide_hw *hw, unsigned long base,
-				      unsigned long ctl, unsigned long irq_port)
-{
-	int i;
-
-	memset(hw, 0, sizeof(*hw));
-
-	hw->io_ports.data_addr = base;
-
-	for (i = 1; i < 8; i++)
-		hw->io_ports_array[i] = base + 2 + i * 4;
-
-	hw->io_ports.ctl_addr = ctl;
-	hw->io_ports.irq_addr = irq_port;
-
-	hw->irq = IRQ_AMIGA_PORTS;
-}
-
-static const struct ide_port_ops buddha_port_ops = {
-	.test_irq		= buddha_test_irq,
-};
-
-static const struct ide_port_ops xsurf_port_ops = {
-	.clear_irq		= xsurf_clear_irq,
-	.test_irq		= buddha_test_irq,
-};
-
-static const struct ide_port_info buddha_port_info = {
-	.port_ops		= &buddha_port_ops,
-	.host_flags		= IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
-	.irq_flags		= IRQF_SHARED,
-	.chipset		= ide_generic,
-};
-
-    /*
-     *  Probe for a Buddha or Catweasel IDE interface
-     */
-
-static int __init buddha_init(void)
-{
-	struct zorro_dev *z = NULL;
-	u_long buddha_board = 0;
-	BuddhaType type;
-	int buddha_num_hwifs, i;
-
-	while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
-		unsigned long board;
-		struct ide_hw hw[MAX_NUM_HWIFS], *hws[MAX_NUM_HWIFS];
-		struct ide_port_info d = buddha_port_info;
-
-		if (z->id == ZORRO_PROD_INDIVIDUAL_COMPUTERS_BUDDHA) {
-			buddha_num_hwifs = BUDDHA_NUM_HWIFS;
-			type=BOARD_BUDDHA;
-		} else if (z->id == ZORRO_PROD_INDIVIDUAL_COMPUTERS_CATWEASEL) {
-			buddha_num_hwifs = CATWEASEL_NUM_HWIFS;
-			type=BOARD_CATWEASEL;
-		} else if (z->id == ZORRO_PROD_INDIVIDUAL_COMPUTERS_X_SURF) {
-			buddha_num_hwifs = XSURF_NUM_HWIFS;
-			type=BOARD_XSURF;
-			d.port_ops = &xsurf_port_ops;
-		} else 
-			continue;
-		
-		board = z->resource.start;
-
-		if(type != BOARD_XSURF) {
-			if (!request_mem_region(board+BUDDHA_BASE1, 0x800, "IDE"))
-				continue;
-		} else {
-			if (!request_mem_region(board+XSURF_BASE1, 0x1000, "IDE"))
-				continue;
-			if (!request_mem_region(board+XSURF_BASE2, 0x1000, "IDE"))
-				goto fail_base2;
-			if (!request_mem_region(board+XSURF_IRQ1, 0x8, "IDE")) {
-				release_mem_region(board+XSURF_BASE2, 0x1000);
-fail_base2:
-				release_mem_region(board+XSURF_BASE1, 0x1000);
-				continue;
-			}
-		}	  
-		buddha_board = (unsigned long)ZTWO_VADDR(board);
-		
-		/* write to BUDDHA_IRQ_MR to enable the board IRQ */
-		/* X-Surf doesn't have this.  IRQs are always on */
-		if (type != BOARD_XSURF)
-			z_writeb(0, buddha_board+BUDDHA_IRQ_MR);
-
-		printk(KERN_INFO "ide: %s IDE controller\n",
-				 buddha_board_name[type]);
-
-		for (i = 0; i < buddha_num_hwifs; i++) {
-			unsigned long base, ctl, irq_port;
-
-			if (type != BOARD_XSURF) {
-				base = buddha_board + buddha_bases[i];
-				ctl = base + BUDDHA_CONTROL;
-				irq_port = buddha_board + buddha_irqports[i];
-			} else {
-				base = buddha_board + xsurf_bases[i];
-				/* X-Surf has no CS1* (Control/AltStat) */
-				ctl = 0;
-				irq_port = buddha_board + xsurf_irqports[i];
-			}
-
-			buddha_setup_ports(&hw[i], base, ctl, irq_port);
-
-			hws[i] = &hw[i];
-		}
-
-		ide_host_add(&d, hws, i, NULL);
-	}
-
-	return 0;
-}
-
-module_init(buddha_init);
-
-MODULE_LICENSE("GPL");

drivers/ide/cs5520.c

-/*
- *	IDE tuning and bus mastering support for the CS5510/CS5520
- *	chipsets
- *
- *	The CS5510/CS5520 are slightly unusual devices. Unlike the 
- *	typical IDE controllers they do bus mastering with the drive in
- *	PIO mode and smarter silicon.
- *
- *	The practical upshot of this is that we must always tune the
- *	drive for the right PIO mode. We must also ignore all the blacklists
- *	and the drive bus mastering DMA information.
- *
- *	*** This driver is strictly experimental ***
- *
- *	(c) Copyright Red Hat Inc 2002
- * 
- * 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, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * For the avoidance of doubt the "preferred form" of this code is one which
- * is in an open non patent encumbered format. Where cryptographic key signing
- * forms part of the process of creating an executable the information
- * including keys needed to generate an equivalently functional executable
- * are deemed to be part of the source code.
- *
- */
- 
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-#include <linux/dma-mapping.h>
-
-#define DRV_NAME "cs5520"
-
-struct pio_clocks
-{
-	int address;
-	int assert;
-	int recovery;
-};
-
-static struct pio_clocks cs5520_pio_clocks[]={
-	{3, 6, 11},
-	{2, 5, 6},
-	{1, 4, 3},
-	{1, 3, 2},
-	{1, 2, 1}
-};
-
-static void cs5520_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	struct pci_dev *pdev = to_pci_dev(hwif->dev);
-	int controller = drive->dn > 1 ? 1 : 0;
-	const u8 pio = drive->pio_mode - XFER_PIO_0;
-
-	/* 8bit CAT/CRT - 8bit command timing for channel */
-	pci_write_config_byte(pdev, 0x62 + controller, 
-		(cs5520_pio_clocks[pio].recovery << 4) |
-		(cs5520_pio_clocks[pio].assert));
-
-	/* 0x64 - 16bit Primary, 0x68 - 16bit Secondary */
-
-	/* FIXME: should these use address ? */
-	/* Data read timing */
-	pci_write_config_byte(pdev, 0x64 + 4*controller + (drive->dn&1),
-		(cs5520_pio_clocks[pio].recovery << 4) |
-		(cs5520_pio_clocks[pio].assert));
-	/* Write command timing */
-	pci_write_config_byte(pdev, 0x66 + 4*controller + (drive->dn&1),
-		(cs5520_pio_clocks[pio].recovery << 4) |
-		(cs5520_pio_clocks[pio].assert));
-}
-
-static void cs5520_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	printk(KERN_ERR "cs55x0: bad ide timing.\n");
-
-	drive->pio_mode = XFER_PIO_0 + 0;
-	cs5520_set_pio_mode(hwif, drive);
-}
-
-static const struct ide_port_ops cs5520_port_ops = {
-	.set_pio_mode		= cs5520_set_pio_mode,
-	.set_dma_mode		= cs5520_set_dma_mode,
-};
-
-static const struct ide_port_info cyrix_chipset = {
-	.name		= DRV_NAME,
-	.enablebits	= { { 0x60, 0x01, 0x01 }, { 0x60, 0x02, 0x02 } },
-	.port_ops	= &cs5520_port_ops,
-	.host_flags	= IDE_HFLAG_ISA_PORTS | IDE_HFLAG_CS5520,
-	.pio_mask	= ATA_PIO4,
-};
-
-/*
- *	The 5510/5520 are a bit weird. They don't quite set up the way
- *	the PCI helper layer expects so we must do much of the set up 
- *	work longhand.
- */
- 
-static int cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id)
-{
-	const struct ide_port_info *d = &cyrix_chipset;
-	struct ide_hw hw[2], *hws[] = { NULL, NULL };
-
-	ide_setup_pci_noise(dev, d);
-
-	/* We must not grab the entire device, it has 'ISA' space in its
-	 * BARS too and we will freak out other bits of the kernel
-	 */
-	if (pci_enable_device_io(dev)) {
-		printk(KERN_WARNING "%s: Unable to enable 55x0.\n", d->name);
-		return -ENODEV;
-	}
-	pci_set_master(dev);
-	if (dma_set_mask(&dev->dev, DMA_BIT_MASK(32))) {
-		printk(KERN_WARNING "%s: No suitable DMA available.\n",
-			d->name);
-		return -ENODEV;
-	}
-
-	/*
-	 *	Now the chipset is configured we can let the core
-	 *	do all the device setup for us
-	 */
-
-	ide_pci_setup_ports(dev, d, &hw[0], &hws[0]);
-	hw[0].irq = 14;
-	hw[1].irq = 15;
-
-	return ide_host_add(d, hws, 2, NULL);
-}
-
-static const struct pci_device_id cs5520_pci_tbl[] = {
-	{ PCI_VDEVICE(CYRIX, PCI_DEVICE_ID_CYRIX_5510), 0 },
-	{ PCI_VDEVICE(CYRIX, PCI_DEVICE_ID_CYRIX_5520), 1 },
-	{ 0, },
-};
-MODULE_DEVICE_TABLE(pci, cs5520_pci_tbl);
-
-static struct pci_driver cs5520_pci_driver = {
-	.name		= "Cyrix_IDE",
-	.id_table	= cs5520_pci_tbl,
-	.probe		= cs5520_init_one,
-	.suspend	= ide_pci_suspend,
-	.resume		= ide_pci_resume,
-};
-
-static int __init cs5520_ide_init(void)
-{
-	return ide_pci_register_driver(&cs5520_pci_driver);
-}
-
-module_init(cs5520_ide_init);
-
-MODULE_AUTHOR("Alan Cox");
-MODULE_DESCRIPTION("PCI driver module for Cyrix 5510/5520 IDE");
-MODULE_LICENSE("GPL");

drivers/ide/ide-4drives.c

-// SPDX-License-Identifier: GPL-2.0-only
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/ide.h>
-
-#define DRV_NAME "ide-4drives"
-
-static bool probe_4drives;
-
-module_param_named(probe, probe_4drives, bool, 0);
-MODULE_PARM_DESC(probe, "probe for generic IDE chipset with 4 drives/port");
-
-static void ide_4drives_init_dev(ide_drive_t *drive)
-{
-	if (drive->hwif->channel)
-		drive->select ^= 0x20;
-}
-
-static const struct ide_port_ops ide_4drives_port_ops = {
-	.init_dev		= ide_4drives_init_dev,
-};
-
-static const struct ide_port_info ide_4drives_port_info = {
-	.port_ops		= &ide_4drives_port_ops,
-	.host_flags		= IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_DMA |
-				  IDE_HFLAG_4DRIVES,
-	.chipset		= ide_4drives,
-};
-
-static int __init ide_4drives_init(void)
-{
-	unsigned long base = 0x1f0, ctl = 0x3f6;
-	struct ide_hw hw, *hws[] = { &hw, &hw };
-
-	if (probe_4drives == 0)
-		return -ENODEV;
-
-	if (!request_region(base, 8, DRV_NAME)) {
-		printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
-				DRV_NAME, base, base + 7);
-		return -EBUSY;
-	}
-
-	if (!request_region(ctl, 1, DRV_NAME)) {
-		printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
-				DRV_NAME, ctl);
-		release_region(base, 8);
-		return -EBUSY;
-	}
-
-	memset(&hw, 0, sizeof(hw));
-
-	ide_std_init_ports(&hw, base, ctl);
-	hw.irq = 14;
-
-	return ide_host_add(&ide_4drives_port_info, hws, 2, NULL);
-}
-
-module_init(ide_4drives_init);
-
-MODULE_AUTHOR("Bartlomiej Zolnierkiewicz");
-MODULE_DESCRIPTION("generic IDE chipset with 4 drives/port support");
-MODULE_LICENSE("GPL");

drivers/ide/ide-disk.h

-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __IDE_DISK_H
-#define __IDE_DISK_H
-
-#include "ide-gd.h"
-
-#ifdef CONFIG_IDE_GD_ATA
-/* ide-disk.c */
-extern const struct ide_disk_ops ide_ata_disk_ops;
-ide_decl_devset(address);
-ide_decl_devset(multcount);
-ide_decl_devset(nowerr);
-ide_decl_devset(wcache);
-ide_decl_devset(acoustic);
-
-/* ide-disk_ioctl.c */
-int ide_disk_ioctl(ide_drive_t *, struct block_device *, fmode_t, unsigned int,
-		   unsigned long);
-
-#ifdef CONFIG_IDE_PROC_FS
-/* ide-disk_proc.c */
-extern ide_proc_entry_t ide_disk_proc[];
-extern const struct ide_proc_devset ide_disk_settings[];
-#endif
-#else
-#define ide_disk_proc		NULL
-#define ide_disk_settings	NULL
-#endif
-
-#endif /* __IDE_DISK_H */