Merge tag 'for-5.14/libata-2021-06-27' of git://git.kernel.dk/linux-block

Pull libata updates from Jens Axboe:
 "The big change in this round is that we're finally in a position where
  we can sanely remove the old drivers/ide/ code, as libata covers
  everything we need by now.

  This is exciting for two reasons:

   1) we delete a lot of legacy code that doesn't really meet the
      standards we have today, and

   2) it enables us to clean up various bits in the block layer that
      exist only because of the old IDE code.

  Outside of that, just a few minor fixes here, fixups for warnings,
  etc"

* tag 'for-5.14/libata-2021-06-27' of git://git.kernel.dk/linux-block: (29 commits)
  ata: rb532_cf: remove redundant codes
  ide: remove the legacy ide driver
  m68k: use libata instead of the legacy ide driver
  ARM: disable CONFIG_IDE in pxa_defconfig
  ARM: disable CONFIG_IDE in footbridge_defconfig
  alpha: use libata instead of the legacy ide driver
  pata_cypress: add a module option to disable BM-DMA
  ata: pata_macio: Avoid overwriting initialised field in 'pata_macio_sht'
  ata: pata_serverworks: Avoid overwriting initialised field in 'serverworks_osb4_sht
  ata: pata_sc1200: sc1200_sht'Avoid overwriting initialised field in '
  ata: pata_cs5530: Avoid overwriting initialised field in 'cs5530_sht'
  ata: pata_cs5520: Avoid overwriting initialised field in 'cs5520_sht'
  ata: pata_atiixp: Avoid overwriting initialised field in 'atiixp_sht'
  ata: sata_nv: Do not over-write initialise fields in 'nv_adma_sht' and 'nv_swncq_sht'
  ata: sata_mv: Do not over-write initialise fields in 'mv6_sht'
  ata: sata_sil24: Do not over-write initialise fields in 'sil24_sht'
  ata: ahci: Ensure initialised fields are not overwritten in AHCI_SHT()
  ata: include: libata: Move fields commonly over-written to separate MACRO
  ahci: Add support for Dell S140 and later controllers
  ata: ahci_sunxi: Disable DIPM
  ...

1 files changed, 0 insertions, 270 deletions

diff --git a/drivers/ide/tc86c001.c b/drivers/ide/tc86c001.c
deleted file mode 100644
index 17e6132b99bf..000000000000
--- a/drivers/ide/tc86c001.c
+++ /dev/null
@@ -1,270 +0,0 @@
-/*
- * Copyright (C) 2002 Toshiba Corporation
- * Copyright (C) 2005-2006 MontaVista Software, Inc. <[email protected]>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2.  This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-#include <linux/module.h>
-
-#define DRV_NAME "tc86c001"
-
-static void tc86c001_set_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	unsigned long scr_port	= hwif->config_data + (drive->dn ? 0x02 : 0x00);
-	u16 mode, scr		= inw(scr_port);
-	const u8 speed		= drive->dma_mode;
-
-	switch (speed) {
-	case XFER_UDMA_4:	mode = 0x00c0; break;
-	case XFER_UDMA_3:	mode = 0x00b0; break;
-	case XFER_UDMA_2:	mode = 0x00a0; break;
-	case XFER_UDMA_1:	mode = 0x0090; break;
-	case XFER_UDMA_0:	mode = 0x0080; break;
-	case XFER_MW_DMA_2:	mode = 0x0070; break;
-	case XFER_MW_DMA_1:	mode = 0x0060; break;
-	case XFER_MW_DMA_0:	mode = 0x0050; break;
-	case XFER_PIO_4:	mode = 0x0400; break;
-	case XFER_PIO_3:	mode = 0x0300; break;
-	case XFER_PIO_2:	mode = 0x0200; break;
-	case XFER_PIO_1:	mode = 0x0100; break;
-	case XFER_PIO_0:
-	default:		mode = 0x0000; break;
-	}
-
-	scr &= (speed < XFER_MW_DMA_0) ? 0xf8ff : 0xff0f;
-	scr |= mode;
-	outw(scr, scr_port);
-}
-
-static void tc86c001_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	drive->dma_mode = drive->pio_mode;
-	tc86c001_set_mode(hwif, drive);
-}
-
-/*
- * HACKITY HACK
- *
- * This is a workaround for the limitation 5 of the TC86C001 IDE controller:
- * if a DMA transfer terminates prematurely, the controller leaves the device's
- * interrupt request (INTRQ) pending and does not generate a PCI interrupt (or
- * set the interrupt bit in the DMA status register), thus no PCI interrupt
- * will occur until a DMA transfer has been successfully completed.
- *
- * We work around this by initiating dummy, zero-length DMA transfer on
- * a DMA timeout expiration. I found no better way to do this with the current
- * IDE core than to temporarily replace a higher level driver's timer expiry
- * handler with our own backing up to that handler in case our recovery fails.
- */
-static int tc86c001_timer_expiry(ide_drive_t *drive)
-{
-	ide_hwif_t *hwif	= drive->hwif;
-	ide_expiry_t *expiry	= ide_get_hwifdata(hwif);
-	u8 dma_stat		= inb(hwif->dma_base + ATA_DMA_STATUS);
-
-	/* Restore a higher level driver's expiry handler first. */
-	hwif->expiry = expiry;
-
-	if ((dma_stat & 5) == 1) {	/* DMA active and no interrupt */
-		unsigned long sc_base	= hwif->config_data;
-		unsigned long twcr_port	= sc_base + (drive->dn ? 0x06 : 0x04);
-		u8 dma_cmd		= inb(hwif->dma_base + ATA_DMA_CMD);
-
-		printk(KERN_WARNING "%s: DMA interrupt possibly stuck, "
-		       "attempting recovery...\n", drive->name);
-
-		/* Stop DMA */
-		outb(dma_cmd & ~0x01, hwif->dma_base + ATA_DMA_CMD);
-
-		/* Setup the dummy DMA transfer */
-		outw(0, sc_base + 0x0a);	/* Sector Count */
-		outw(0, twcr_port);	/* Transfer Word Count 1 or 2 */
-
-		/* Start the dummy DMA transfer */
-
-		/* clear R_OR_WCTR for write */
-		outb(0x00, hwif->dma_base + ATA_DMA_CMD);
-		/* set START_STOPBM */
-		outb(0x01, hwif->dma_base + ATA_DMA_CMD);
-
-		/*
-		 * If an interrupt was pending, it should come thru shortly.
-		 * If not, a higher level driver's expiry handler should
-		 * eventually cause some kind of recovery from the DMA stall.
-		 */
-		return WAIT_MIN_SLEEP;
-	}
-
-	/* Chain to the restored expiry handler if DMA wasn't active. */
-	if (likely(expiry != NULL))
-		return expiry(drive);
-
-	/* If there was no handler, "emulate" that for ide_timer_expiry()... */
-	return -1;
-}
-
-static void tc86c001_dma_start(ide_drive_t *drive)
-{
-	ide_hwif_t *hwif	= drive->hwif;
-	unsigned long sc_base	= hwif->config_data;
-	unsigned long twcr_port	= sc_base + (drive->dn ? 0x06 : 0x04);
-	unsigned long nsectors	= blk_rq_sectors(hwif->rq);
-
-	/*
-	 * We have to manually load the sector count and size into
-	 * the appropriate system control registers for DMA to work
-	 * with LBA48 and ATAPI devices...
-	 */
-	outw(nsectors, sc_base + 0x0a);	/* Sector Count */
-	outw(SECTOR_SIZE / 2, twcr_port); /* Transfer Word Count 1/2 */
-
-	/* Install our timeout expiry hook, saving the current handler... */
-	ide_set_hwifdata(hwif, hwif->expiry);
-	hwif->expiry = &tc86c001_timer_expiry;
-
-	ide_dma_start(drive);
-}
-
-static u8 tc86c001_cable_detect(ide_hwif_t *hwif)
-{
-	struct pci_dev *dev = to_pci_dev(hwif->dev);
-	unsigned long sc_base = pci_resource_start(dev, 5);
-	u16 scr1 = inw(sc_base + 0x00);
-
-	/*
-	 * System Control  1 Register bit 13 (PDIAGN):
-	 * 0=80-pin cable, 1=40-pin cable
-	 */
-	return (scr1 & 0x2000) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
-}
-
-static void init_hwif_tc86c001(ide_hwif_t *hwif)
-{
-	struct pci_dev *dev	= to_pci_dev(hwif->dev);
-	unsigned long sc_base	= pci_resource_start(dev, 5);
-	u16 scr1		= inw(sc_base + 0x00);
-
-	/* System Control 1 Register bit 15 (Soft Reset) set */
-	outw(scr1 |  0x8000, sc_base + 0x00);
-
-	/* System Control 1 Register bit 14 (FIFO Reset) set */
-	outw(scr1 |  0x4000, sc_base + 0x00);
-
-	/* System Control 1 Register: reset clear */
-	outw(scr1 & ~0xc000, sc_base + 0x00);
-
-	/* Store the system control register base for convenience... */
-	hwif->config_data = sc_base;
-
-	if (!hwif->dma_base)
-		return;
-
-	/*
-	 * Sector Count Control Register bits 0 and 1 set:
-	 * software sets Sector Count Register for master and slave device
-	 */
-	outw(0x0003, sc_base + 0x0c);
-
-	/* Sector Count Register limit */
-	hwif->rqsize	 = 0xffff;
-}
-
-static const struct ide_port_ops tc86c001_port_ops = {
-	.set_pio_mode		= tc86c001_set_pio_mode,
-	.set_dma_mode		= tc86c001_set_mode,
-	.cable_detect		= tc86c001_cable_detect,
-};
-
-static const struct ide_dma_ops tc86c001_dma_ops = {
-	.dma_host_set		= ide_dma_host_set,
-	.dma_setup		= ide_dma_setup,
-	.dma_start		= tc86c001_dma_start,
-	.dma_end		= ide_dma_end,
-	.dma_test_irq		= ide_dma_test_irq,
-	.dma_lost_irq		= ide_dma_lost_irq,
-	.dma_timer_expiry	= ide_dma_sff_timer_expiry,
-	.dma_sff_read_status	= ide_dma_sff_read_status,
-};
-
-static const struct ide_port_info tc86c001_chipset = {
-	.name		= DRV_NAME,
-	.init_hwif	= init_hwif_tc86c001,
-	.port_ops	= &tc86c001_port_ops,
-	.dma_ops	= &tc86c001_dma_ops,
-	.host_flags	= IDE_HFLAG_SINGLE | IDE_HFLAG_OFF_BOARD,
-	.pio_mask	= ATA_PIO4,
-	.mwdma_mask	= ATA_MWDMA2,
-	.udma_mask	= ATA_UDMA4,
-};
-
-static int tc86c001_init_one(struct pci_dev *dev,
-			     const struct pci_device_id *id)
-{
-	int rc;
-
-	rc = pci_enable_device(dev);
-	if (rc)
-		goto out;
-
-	rc = pci_request_region(dev, 5, DRV_NAME);
-	if (rc) {
-		printk(KERN_ERR DRV_NAME ": system control regs already in use");
-		goto out_disable;
-	}
-
-	rc = ide_pci_init_one(dev, &tc86c001_chipset, NULL);
-	if (rc)
-		goto out_release;
-
-	goto out;
-
-out_release:
-	pci_release_region(dev, 5);
-out_disable:
-	pci_disable_device(dev);
-out:
-	return rc;
-}
-
-static void tc86c001_remove(struct pci_dev *dev)
-{
-	ide_pci_remove(dev);
-	pci_release_region(dev, 5);
-	pci_disable_device(dev);
-}
-
-static const struct pci_device_id tc86c001_pci_tbl[] = {
-	{ PCI_VDEVICE(TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE), 0 },
-	{ 0, }
-};
-MODULE_DEVICE_TABLE(pci, tc86c001_pci_tbl);
-
-static struct pci_driver tc86c001_pci_driver = {
-	.name		= "TC86C001",
-	.id_table	= tc86c001_pci_tbl,
-	.probe		= tc86c001_init_one,
-	.remove		= tc86c001_remove,
-};
-
-static int __init tc86c001_ide_init(void)
-{
-	return ide_pci_register_driver(&tc86c001_pci_driver);
-}
-
-static void __exit tc86c001_ide_exit(void)
-{
-	pci_unregister_driver(&tc86c001_pci_driver);
-}
-
-module_init(tc86c001_ide_init);
-module_exit(tc86c001_ide_exit);
-
-MODULE_AUTHOR("MontaVista Software, Inc. <[email protected]>");
-MODULE_DESCRIPTION("PCI driver module for TC86C001 IDE");
-MODULE_LICENSE("GPL");