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>

1 files changed, 0 insertions, 343 deletions

diff --git a/drivers/ide/amd74xx.c b/drivers/ide/amd74xx.c
deleted file mode 100644
index 7340597a373e..000000000000
--- a/drivers/ide/amd74xx.c
+++ /dev/null
@@ -1,343 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * AMD 755/756/766/8111 and nVidia nForce/2/2s/3/3s/CK804/MCP04
- * IDE driver for Linux.
- *
- * Copyright (c) 2000-2002 Vojtech Pavlik
- * Copyright (c) 2007-2010 Bartlomiej Zolnierkiewicz
- *
- * Based on the work of:
- *      Andre Hedrick
- */
-
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/ide.h>
-
-#define DRV_NAME "amd74xx"
-
-enum {
-	AMD_IDE_CONFIG		= 0x41,
-	AMD_CABLE_DETECT	= 0x42,
-	AMD_DRIVE_TIMING	= 0x48,
-	AMD_8BIT_TIMING		= 0x4e,
-	AMD_ADDRESS_SETUP	= 0x4c,
-	AMD_UDMA_TIMING		= 0x50,
-};
-
-static unsigned int amd_80w;
-static unsigned int amd_clock;
-
-static char *amd_dma[] = { "16", "25", "33", "44", "66", "100", "133" };
-static unsigned char amd_cyc2udma[] = { 6, 6, 5, 4, 0, 1, 1, 2, 2, 3, 3, 3, 3, 3, 3, 7 };
-
-static inline u8 amd_offset(struct pci_dev *dev)
-{
-	return (dev->vendor == PCI_VENDOR_ID_NVIDIA) ? 0x10 : 0;
-}
-
-/*
- * amd_set_speed() writes timing values to the chipset registers
- */
-
-static void amd_set_speed(struct pci_dev *dev, u8 dn, u8 udma_mask,
-			  struct ide_timing *timing)
-{
-	u8 t = 0, offset = amd_offset(dev);
-
-	pci_read_config_byte(dev, AMD_ADDRESS_SETUP + offset, &t);
-	t = (t & ~(3 << ((3 - dn) << 1))) | ((clamp_val(timing->setup, 1, 4) - 1) << ((3 - dn) << 1));
-	pci_write_config_byte(dev, AMD_ADDRESS_SETUP + offset, t);
-
-	pci_write_config_byte(dev, AMD_8BIT_TIMING + offset + (1 - (dn >> 1)),
-		((clamp_val(timing->act8b, 1, 16) - 1) << 4) | (clamp_val(timing->rec8b, 1, 16) - 1));
-
-	pci_write_config_byte(dev, AMD_DRIVE_TIMING + offset + (3 - dn),
-		((clamp_val(timing->active, 1, 16) - 1) << 4) | (clamp_val(timing->recover, 1, 16) - 1));
-
-	switch (udma_mask) {
-	case ATA_UDMA2: t = timing->udma ? (0xc0 | (clamp_val(timing->udma, 2, 5) - 2)) : 0x03; break;
-	case ATA_UDMA4: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 2, 10)]) : 0x03; break;
-	case ATA_UDMA5: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 1, 10)]) : 0x03; break;
-	case ATA_UDMA6: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 1, 15)]) : 0x03; break;
-	default: return;
-	}
-
-	if (timing->udma)
-		pci_write_config_byte(dev, AMD_UDMA_TIMING + offset + 3 - dn, t);
-}
-
-/*
- * amd_set_drive() computes timing values and configures the chipset
- * to a desired transfer mode.  It also can be called by upper layers.
- */
-
-static void amd_set_drive(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	struct pci_dev *dev = to_pci_dev(hwif->dev);
-	ide_drive_t *peer = ide_get_pair_dev(drive);
-	struct ide_timing t, p;
-	int T, UT;
-	u8 udma_mask = hwif->ultra_mask;
-	const u8 speed = drive->dma_mode;
-
-	T = 1000000000 / amd_clock;
-	UT = (udma_mask == ATA_UDMA2) ? T : (T / 2);
-
-	ide_timing_compute(drive, speed, &t, T, UT);
-
-	if (peer) {
-		ide_timing_compute(peer, peer->pio_mode, &p, T, UT);
-		ide_timing_merge(&p, &t, &t, IDE_TIMING_8BIT);
-	}
-
-	if (speed == XFER_UDMA_5 && amd_clock <= 33333) t.udma = 1;
-	if (speed == XFER_UDMA_6 && amd_clock <= 33333) t.udma = 15;
-
-	amd_set_speed(dev, drive->dn, udma_mask, &t);
-}
-
-/*
- * amd_set_pio_mode() is a callback from upper layers for PIO-only tuning.
- */
-
-static void amd_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	drive->dma_mode = drive->pio_mode;
-	amd_set_drive(hwif, drive);
-}
-
-static void amd7409_cable_detect(struct pci_dev *dev)
-{
-	/* no host side cable detection */
-	amd_80w = 0x03;
-}
-
-static void amd7411_cable_detect(struct pci_dev *dev)
-{
-	int i;
-	u32 u = 0;
-	u8 t = 0, offset = amd_offset(dev);
-
-	pci_read_config_byte(dev, AMD_CABLE_DETECT + offset, &t);
-	pci_read_config_dword(dev, AMD_UDMA_TIMING + offset, &u);
-	amd_80w = ((t & 0x3) ? 1 : 0) | ((t & 0xc) ? 2 : 0);
-	for (i = 24; i >= 0; i -= 8)
-		if (((u >> i) & 4) && !(amd_80w & (1 << (1 - (i >> 4))))) {
-			printk(KERN_WARNING DRV_NAME " %s: BIOS didn't set "
-				"cable bits correctly. Enabling workaround.\n",
-				pci_name(dev));
-			amd_80w |= (1 << (1 - (i >> 4)));
-		}
-}
-
-/*
- * The initialization callback.  Initialize drive independent registers.
- */
-
-static int init_chipset_amd74xx(struct pci_dev *dev)
-{
-	u8 t = 0, offset = amd_offset(dev);
-
-/*
- * Check 80-wire cable presence.
- */
-
-	if (dev->vendor == PCI_VENDOR_ID_AMD &&
-	    dev->device == PCI_DEVICE_ID_AMD_COBRA_7401)
-		; /* no UDMA > 2 */
-	else if (dev->vendor == PCI_VENDOR_ID_AMD &&
-		 dev->device == PCI_DEVICE_ID_AMD_VIPER_7409)
-		amd7409_cable_detect(dev);
-	else
-		amd7411_cable_detect(dev);
-
-/*
- * Take care of prefetch & postwrite.
- */
-
-	pci_read_config_byte(dev, AMD_IDE_CONFIG + offset, &t);
-	/*
-	 * Check for broken FIFO support.
-	 */
-	if (dev->vendor == PCI_VENDOR_ID_AMD &&
-	    dev->device == PCI_DEVICE_ID_AMD_VIPER_7411)
-		t &= 0x0f;
-	else
-		t |= 0xf0;
-	pci_write_config_byte(dev, AMD_IDE_CONFIG + offset, t);
-
-	return 0;
-}
-
-static u8 amd_cable_detect(ide_hwif_t *hwif)
-{
-	if ((amd_80w >> hwif->channel) & 1)
-		return ATA_CBL_PATA80;
-	else
-		return ATA_CBL_PATA40;
-}
-
-static const struct ide_port_ops amd_port_ops = {
-	.set_pio_mode		= amd_set_pio_mode,
-	.set_dma_mode		= amd_set_drive,
-	.cable_detect		= amd_cable_detect,
-};
-
-#define IDE_HFLAGS_AMD \
-	(IDE_HFLAG_PIO_NO_BLACKLIST | \
-	 IDE_HFLAG_POST_SET_MODE | \
-	 IDE_HFLAG_IO_32BIT | \
-	 IDE_HFLAG_UNMASK_IRQS)
-
-#define DECLARE_AMD_DEV(swdma, udma)				\
-	{								\
-		.name		= DRV_NAME,				\
-		.init_chipset	= init_chipset_amd74xx,			\
-		.enablebits	= {{0x40,0x02,0x02}, {0x40,0x01,0x01}},	\
-		.port_ops	= &amd_port_ops,			\
-		.host_flags	= IDE_HFLAGS_AMD,			\
-		.pio_mask	= ATA_PIO5,				\
-		.swdma_mask	= swdma,				\
-		.mwdma_mask	= ATA_MWDMA2,				\
-		.udma_mask	= udma,					\
-	}
-
-#define DECLARE_NV_DEV(udma)					\
-	{								\
-		.name		= DRV_NAME,				\
-		.init_chipset	= init_chipset_amd74xx,			\
-		.enablebits	= {{0x50,0x02,0x02}, {0x50,0x01,0x01}},	\
-		.port_ops	= &amd_port_ops,			\
-		.host_flags	= IDE_HFLAGS_AMD,			\
-		.pio_mask	= ATA_PIO5,				\
-		.swdma_mask	= ATA_SWDMA2,				\
-		.mwdma_mask	= ATA_MWDMA2,				\
-		.udma_mask	= udma,					\
-	}
-
-static const struct ide_port_info amd74xx_chipsets[] = {
-	/* 0: AMD7401 */	DECLARE_AMD_DEV(0x00, ATA_UDMA2),
-	/* 1: AMD7409 */	DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA4),
-	/* 2: AMD7411/7441 */	DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA5),
-	/* 3: AMD8111 */	DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA6),
-
-	/* 4: NFORCE */		DECLARE_NV_DEV(ATA_UDMA5),
-	/* 5: >= NFORCE2 */	DECLARE_NV_DEV(ATA_UDMA6),
-
-	/* 6: AMD5536 */	DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA5),
-};
-
-static int amd74xx_probe(struct pci_dev *dev, const struct pci_device_id *id)
-{
-	struct ide_port_info d;
-	u8 idx = id->driver_data;
-
-	d = amd74xx_chipsets[idx];
-
-	/*
-	 * Check for bad SWDMA and incorrectly wired Serenade mainboards.
-	 */
-	if (idx == 1) {
-		if (dev->revision <= 7)
-			d.swdma_mask = 0;
-		d.host_flags |= IDE_HFLAG_CLEAR_SIMPLEX;
-	} else if (idx == 3) {
-		if (dev->subsystem_vendor == PCI_VENDOR_ID_AMD &&
-		    dev->subsystem_device == PCI_DEVICE_ID_AMD_SERENADE)
-			d.udma_mask = ATA_UDMA5;
-	}
-
-	/*
-	 * It seems that on some nVidia controllers using AltStatus
-	 * register can be unreliable so default to Status register
-	 * if the device is in Compatibility Mode.
-	 */
-	if (dev->vendor == PCI_VENDOR_ID_NVIDIA &&
-	    ide_pci_is_in_compatibility_mode(dev))
-		d.host_flags |= IDE_HFLAG_BROKEN_ALTSTATUS;
-
-	printk(KERN_INFO "%s %s: UDMA%s controller\n",
-		d.name, pci_name(dev), amd_dma[fls(d.udma_mask) - 1]);
-
-	/*
-	* Determine the system bus clock.
-	*/
-	amd_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000;
-
-	switch (amd_clock) {
-	case 33000: amd_clock = 33333; break;
-	case 37000: amd_clock = 37500; break;
-	case 41000: amd_clock = 41666; break;
-	}
-
-	if (amd_clock < 20000 || amd_clock > 50000) {
-		printk(KERN_WARNING "%s: User given PCI clock speed impossible"
-				    " (%d), using 33 MHz instead.\n",
-				    d.name, amd_clock);
-		amd_clock = 33333;
-	}
-
-	return ide_pci_init_one(dev, &d, NULL);
-}
-
-static const struct pci_device_id amd74xx_pci_tbl[] = {
-	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_COBRA_7401),		 0 },
-	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_VIPER_7409),		 1 },
-	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_VIPER_7411),		 2 },
-	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_OPUS_7441),		 2 },
-	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_8111_IDE),		 3 },
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_IDE),	 4 },
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE),	 5 },
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE2S_IDE),	 5 },
-#ifdef CONFIG_BLK_DEV_IDE_SATA
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE2S_SATA),	 5 },
-#endif
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE3_IDE),	 5 },
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE3S_IDE),	 5 },
-#ifdef CONFIG_BLK_DEV_IDE_SATA
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA),	 5 },
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA2),	 5 },
-#endif
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_IDE),	 5 },
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_IDE),	 5 },
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_IDE),	 5 },
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_IDE),	 5 },
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_IDE),	 5 },
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP65_IDE),	 5 },
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP67_IDE),	 5 },
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP73_IDE),	 5 },
-	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP77_IDE),	 5 },
-	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_CS5536_IDE),		 6 },
-	{ 0, },
-};
-MODULE_DEVICE_TABLE(pci, amd74xx_pci_tbl);
-
-static struct pci_driver amd74xx_pci_driver = {
-	.name		= "AMD_IDE",
-	.id_table	= amd74xx_pci_tbl,
-	.probe		= amd74xx_probe,
-	.remove		= ide_pci_remove,
-	.suspend	= ide_pci_suspend,
-	.resume		= ide_pci_resume,
-};
-
-static int __init amd74xx_ide_init(void)
-{
-	return ide_pci_register_driver(&amd74xx_pci_driver);
-}
-
-static void __exit amd74xx_ide_exit(void)
-{
-	pci_unregister_driver(&amd74xx_pci_driver);
-}
-
-module_init(amd74xx_ide_init);
-module_exit(amd74xx_ide_exit);
-
-MODULE_AUTHOR("Vojtech Pavlik, Bartlomiej Zolnierkiewicz");
-MODULE_DESCRIPTION("AMD PCI IDE driver");
-MODULE_LICENSE("GPL");