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, 383 deletions

diff --git a/drivers/ide/ht6560b.c b/drivers/ide/ht6560b.c
deleted file mode 100644
index 743bc3693ac8..000000000000
--- a/drivers/ide/ht6560b.c
+++ /dev/null
@@ -1,383 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- *  Copyright (C) 1995-2000  Linus Torvalds & author (see below)
- */
-
-/*
- *  HT-6560B EIDE-controller support
- *  To activate controller support use kernel parameter "ide0=ht6560b".
- *  Use hdparm utility to enable PIO mode support.
- *
- *  Author:    Mikko Ala-Fossi            <[email protected]>
- *             Jan Evert van Grootheest   <[email protected]>
- *
- */
-
-#define DRV_NAME	"ht6560b"
-#define HT6560B_VERSION "v0.08"
-
-#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 DEBUG */  /* remove comments for DEBUG messages */
-
-/*
- * The special i/o-port that HT-6560B uses to configuration:
- *    bit0 (0x01): "1" selects secondary interface
- *    bit2 (0x04): "1" enables FIFO function
- *    bit5 (0x20): "1" enables prefetched data read function  (???)
- *
- * The special i/o-port that HT-6560A uses to configuration:
- *    bit0 (0x01): "1" selects secondary interface
- *    bit1 (0x02): "1" enables prefetched data read function
- *    bit2 (0x04): "0" enables multi-master system	      (?)
- *    bit3 (0x08): "1" 3 cycle time, "0" 2 cycle time	      (?)
- */
-#define HT_CONFIG_PORT	  0x3e6
-
-static inline u8 HT_CONFIG(ide_drive_t *drive)
-{
-	return ((unsigned long)ide_get_drivedata(drive) & 0xff00) >> 8;
-}
-
-/*
- * FIFO + PREFETCH (both a/b-model)
- */
-#define HT_CONFIG_DEFAULT 0x1c /* no prefetch */
-/* #define HT_CONFIG_DEFAULT 0x3c */ /* with prefetch */
-#define HT_SECONDARY_IF	  0x01
-#define HT_PREFETCH_MODE  0x20
-
-/*
- * ht6560b Timing values:
- *
- * I reviewed some assembler source listings of htide drivers and found
- * out how they setup those cycle time interfacing values, as they at Holtek
- * call them. IDESETUP.COM that is supplied with the drivers figures out
- * optimal values and fetches those values to drivers. I found out that
- * they use Select register to fetch timings to the ide board right after
- * interface switching. After that it was quite easy to add code to
- * ht6560b.c.
- *
- * IDESETUP.COM gave me values 0x24, 0x45, 0xaa, 0xff that worked fine
- * for hda and hdc. But hdb needed higher values to work, so I guess
- * that sometimes it is necessary to give higher value than IDESETUP
- * gives.   [see cmd640.c for an extreme example of this. -ml]
- *
- * Perhaps I should explain something about these timing values:
- * The higher nibble of value is the Recovery Time  (rt) and the lower nibble
- * of the value is the Active Time  (at). Minimum value 2 is the fastest and
- * the maximum value 15 is the slowest. Default values should be 15 for both.
- * So 0x24 means 2 for rt and 4 for at. Each of the drives should have
- * both values, and IDESETUP gives automatically rt=15 st=15 for CDROMs or
- * similar. If value is too small there will be all sorts of failures.
- *
- * Timing byte consists of
- *	High nibble:  Recovery Cycle Time  (rt)
- *	     The valid values range from 2 to 15. The default is 15.
- *
- *	Low nibble:   Active Cycle Time	   (at)
- *	     The valid values range from 2 to 15. The default is 15.
- *
- * You can obtain optimized timing values by running Holtek IDESETUP.COM
- * for DOS. DOS drivers get their timing values from command line, where
- * the first value is the Recovery Time and the second value is the
- * Active Time for each drive. Smaller value gives higher speed.
- * In case of failures you should probably fall back to a higher value.
- */
-static inline u8 HT_TIMING(ide_drive_t *drive)
-{
-	return (unsigned long)ide_get_drivedata(drive) & 0x00ff;
-}
-
-#define HT_TIMING_DEFAULT 0xff
-
-/*
- * This routine handles interface switching for the peculiar hardware design
- * on the F.G.I./Holtek HT-6560B VLB IDE interface.
- * The HT-6560B can only enable one IDE port at a time, and requires a
- * silly sequence (below) whenever we switch between primary and secondary.
- */
-
-/*
- * This routine is invoked from ide.c to prepare for access to a given drive.
- */
-static void ht6560b_dev_select(ide_drive_t *drive)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	unsigned long flags;
-	static u8 current_select = 0;
-	static u8 current_timing = 0;
-	u8 select, timing;
-	
-	local_irq_save(flags);
-
-	select = HT_CONFIG(drive);
-	timing = HT_TIMING(drive);
-
-	/*
-	 * Need to enforce prefetch sometimes because otherwise
-	 * it'll hang (hard).
-	 */
-	if (drive->media != ide_disk ||
-	    (drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
-		select |= HT_PREFETCH_MODE;
-
-	if (select != current_select || timing != current_timing) {
-		current_select = select;
-		current_timing = timing;
-		(void)inb(HT_CONFIG_PORT);
-		(void)inb(HT_CONFIG_PORT);
-		(void)inb(HT_CONFIG_PORT);
-		(void)inb(HT_CONFIG_PORT);
-		outb(select, HT_CONFIG_PORT);
-		/*
-		 * Set timing for this drive:
-		 */
-		outb(timing, hwif->io_ports.device_addr);
-		(void)inb(hwif->io_ports.status_addr);
-#ifdef DEBUG
-		printk("ht6560b: %s: select=%#x timing=%#x\n",
-			drive->name, select, timing);
-#endif
-	}
-	local_irq_restore(flags);
-
-	outb(drive->select | ATA_DEVICE_OBS, hwif->io_ports.device_addr);
-}
-
-/*
- * Autodetection and initialization of ht6560b
- */
-static int __init try_to_init_ht6560b(void)
-{
-	u8 orig_value;
-	int i;
-	
-	/* Autodetect ht6560b */
-	if ((orig_value = inb(HT_CONFIG_PORT)) == 0xff)
-		return 0;
-	
-	for (i=3;i>0;i--) {
-		outb(0x00, HT_CONFIG_PORT);
-		if (!( (~inb(HT_CONFIG_PORT)) & 0x3f )) {
-			outb(orig_value, HT_CONFIG_PORT);
-			return 0;
-		}
-	}
-	outb(0x00, HT_CONFIG_PORT);
-	if ((~inb(HT_CONFIG_PORT))& 0x3f) {
-		outb(orig_value, HT_CONFIG_PORT);
-		return 0;
-	}
-	/*
-	 * Ht6560b autodetected
-	 */
-	outb(HT_CONFIG_DEFAULT, HT_CONFIG_PORT);
-	outb(HT_TIMING_DEFAULT, 0x1f6);	/* Select register */
-	(void)inb(0x1f7);		/* Status register */
-
-	printk("ht6560b " HT6560B_VERSION
-	       ": chipset detected and initialized"
-#ifdef DEBUG
-	       " with debug enabled"
-#endif
-	       "\n"
-		);
-	return 1;
-}
-
-static u8 ht_pio2timings(ide_drive_t *drive, const u8 pio)
-{
-	int active_time, recovery_time;
-	int active_cycles, recovery_cycles;
-	int bus_speed = ide_vlb_clk ? ide_vlb_clk : 50;
-
-        if (pio) {
-		unsigned int cycle_time;
-		struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio);
-
-		cycle_time = ide_pio_cycle_time(drive, pio);
-
-		/*
-		 *  Just like opti621.c we try to calculate the
-		 *  actual cycle time for recovery and activity
-		 *  according system bus speed.
-		 */
-		active_time = t->active;
-		recovery_time = cycle_time - active_time - t->setup;
-		/*
-		 *  Cycle times should be Vesa bus cycles
-		 */
-		active_cycles   = (active_time   * bus_speed + 999) / 1000;
-		recovery_cycles = (recovery_time * bus_speed + 999) / 1000;
-		/*
-		 *  Upper and lower limits
-		 */
-		if (active_cycles   < 2)  active_cycles   = 2;
-		if (recovery_cycles < 2)  recovery_cycles = 2;
-		if (active_cycles   > 15) active_cycles   = 15;
-		if (recovery_cycles > 15) recovery_cycles = 0;  /* 0==16 */
-		
-#ifdef DEBUG
-		printk("ht6560b: drive %s setting pio=%d recovery=%d (%dns) active=%d (%dns)\n", drive->name, pio, recovery_cycles, recovery_time, active_cycles, active_time);
-#endif
-		
-		return (u8)((recovery_cycles << 4) | active_cycles);
-	} else {
-		
-#ifdef DEBUG
-		printk("ht6560b: drive %s setting pio=0\n", drive->name);
-#endif
-		
-		return HT_TIMING_DEFAULT;    /* default setting */
-	}
-}
-
-static DEFINE_SPINLOCK(ht6560b_lock);
-
-/*
- *  Enable/Disable so called prefetch mode
- */
-static void ht_set_prefetch(ide_drive_t *drive, u8 state)
-{
-	unsigned long flags, config;
-	int t = HT_PREFETCH_MODE << 8;
-
-	spin_lock_irqsave(&ht6560b_lock, flags);
-
-	config = (unsigned long)ide_get_drivedata(drive);
-
-	/*
-	 *  Prefetch mode and unmask irq seems to conflict
-	 */
-	if (state) {
-		config |= t;   /* enable prefetch mode */
-		drive->dev_flags |= IDE_DFLAG_NO_UNMASK;
-		drive->dev_flags &= ~IDE_DFLAG_UNMASK;
-	} else {
-		config &= ~t;  /* disable prefetch mode */
-		drive->dev_flags &= ~IDE_DFLAG_NO_UNMASK;
-	}
-
-	ide_set_drivedata(drive, (void *)config);
-
-	spin_unlock_irqrestore(&ht6560b_lock, flags);
-
-#ifdef DEBUG
-	printk("ht6560b: drive %s prefetch mode %sabled\n", drive->name, (state ? "en" : "dis"));
-#endif
-}
-
-static void ht6560b_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
-	unsigned long flags, config;
-	const u8 pio = drive->pio_mode - XFER_PIO_0;
-	u8 timing;
-	
-	switch (pio) {
-	case 8:         /* set prefetch off */
-	case 9:         /* set prefetch on */
-		ht_set_prefetch(drive, pio & 1);
-		return;
-	}
-
-	timing = ht_pio2timings(drive, pio);
-
-	spin_lock_irqsave(&ht6560b_lock, flags);
-	config = (unsigned long)ide_get_drivedata(drive);
-	config &= 0xff00;
-	config |= timing;
-	ide_set_drivedata(drive, (void *)config);
-	spin_unlock_irqrestore(&ht6560b_lock, flags);
-
-#ifdef DEBUG
-	printk("ht6560b: drive %s tuned to pio mode %#x timing=%#x\n", drive->name, pio, timing);
-#endif
-}
-
-static void __init ht6560b_init_dev(ide_drive_t *drive)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	/* Setting default configurations for drives. */
-	unsigned long t = (HT_CONFIG_DEFAULT << 8) | HT_TIMING_DEFAULT;
-
-	if (hwif->channel)
-		t |= (HT_SECONDARY_IF << 8);
-
-	ide_set_drivedata(drive, (void *)t);
-}
-
-static bool probe_ht6560b;
-
-module_param_named(probe, probe_ht6560b, bool, 0);
-MODULE_PARM_DESC(probe, "probe for HT6560B chipset");
-
-static const struct ide_tp_ops ht6560b_tp_ops = {
-	.exec_command		= ide_exec_command,
-	.read_status		= ide_read_status,
-	.read_altstatus		= ide_read_altstatus,
-	.write_devctl		= ide_write_devctl,
-
-	.dev_select		= ht6560b_dev_select,
-	.tf_load		= ide_tf_load,
-	.tf_read		= ide_tf_read,
-
-	.input_data		= ide_input_data,
-	.output_data		= ide_output_data,
-};
-
-static const struct ide_port_ops ht6560b_port_ops = {
-	.init_dev		= ht6560b_init_dev,
-	.set_pio_mode		= ht6560b_set_pio_mode,
-};
-
-static const struct ide_port_info ht6560b_port_info __initconst = {
-	.name			= DRV_NAME,
-	.chipset		= ide_ht6560b,
-	.tp_ops 		= &ht6560b_tp_ops,
-	.port_ops		= &ht6560b_port_ops,
-	.host_flags		= IDE_HFLAG_SERIALIZE | /* is this needed? */
-				  IDE_HFLAG_NO_DMA |
-				  IDE_HFLAG_ABUSE_PREFETCH,
-	.pio_mask		= ATA_PIO4,
-};
-
-static int __init ht6560b_init(void)
-{
-	if (probe_ht6560b == 0)
-		return -ENODEV;
-
-	if (!request_region(HT_CONFIG_PORT, 1, DRV_NAME)) {
-		printk(KERN_NOTICE "%s: HT_CONFIG_PORT not found\n",
-			__func__);
-		return -ENODEV;
-	}
-
-	if (!try_to_init_ht6560b()) {
-		printk(KERN_NOTICE "%s: HBA not found\n", __func__);
-		goto release_region;
-	}
-
-	return ide_legacy_device_add(&ht6560b_port_info, 0);
-
-release_region:
-	release_region(HT_CONFIG_PORT, 1);
-	return -ENODEV;
-}
-
-module_init(ht6560b_init);
-
-MODULE_AUTHOR("See Local File");
-MODULE_DESCRIPTION("HT-6560B EIDE-controller support");
-MODULE_LICENSE("GPL");