Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6: (23 commits)
  ide-acpi support warning fix
  ACPI support for IDE devices
  IDE Driver for Delkin/Lexar/etc.. cardbus CF adapter
  ide: it8213 IDE driver update (version 2)
  ide: add it8213 IDE driver
  tc86c001: add missing __init tag for tc86c001_ide_init()
  tc86c001: mark init_chipset_tc86c001() with __devinit tag
  tc86c001: init_hwif_tc86c001() can be static
  ide: add Toshiba TC86C001 IDE driver (take 2)
  pdc202xx_new: remove check_in_drive_lists abomination
  pdc202xx_new: remove useless code
  slc90e66: carry over fixes from piix driver
  piix: tuneproc() fixes/cleanups
  piix: fix 82371MX enablebits
  hpt366: HPT36x PCI clock detection fix
  hpt366: init code rewrite
  hpt366: clean up DMA timeout handling for HPT370
  hpt366: merge HPT37x speedproc handlers
  hpt366: cache channel's MCR address
  hpt366: switch to using pci_get_slot
  ...

15 files changed, 2478 insertions, 868 deletions

diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 3f828052f8d..ec03341d2bd 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -167,6 +167,13 @@ config BLK_DEV_IDECS
 	  Support for Compact Flash cards, outboard IDE disks, tape drives,
 	  and CD-ROM drives connected through a PCMCIA card.
 
+config BLK_DEV_DELKIN
+	tristate "Cardbus IDE support (Delkin/ASKA/Workbit)"
+	depends on CARDBUS && PCI
+	help
+	  Support for Delkin, ASKA, and Workbit Cardbus CompactFlash
+	  Adapters.  This may also work for similar SD and XD adapters.
+
 config BLK_DEV_IDECD
 	tristate "Include IDE/ATAPI CDROM support"
 	---help---
@@ -264,6 +271,13 @@ config BLK_DEV_IDESCSI
 	  If both this SCSI emulation and native ATAPI support are compiled
 	  into the kernel, the native support will be used.
 
+config BLK_DEV_IDEACPI
+	bool "IDE ACPI support"
+	depends on ACPI
+	---help---
+	  Implement ACPI support for generic IDE devices. On modern
+	  machines ACPI support is required to properly handle ACPI S3 states.
+
 config IDE_TASK_IOCTL
 	bool "IDE Taskfile Access"
 	help
@@ -606,6 +620,11 @@ config BLK_DEV_PIIX
 	  the kernel to change PIO, DMA and UDMA speeds and to configure
 	  the chip to optimum performance.
 
+config BLK_DEV_IT8213
+	tristate "IT8213 IDE support"
+	help
+	 This driver adds support for the ITE 8213 IDE controller.
+
 config BLK_DEV_IT821X
 	tristate "IT821X IDE support"
 	help
@@ -742,6 +761,11 @@ config BLK_DEV_VIA82CXXX
 	  This allows the kernel to change PIO, DMA and UDMA speeds and to
 	  configure the chip to optimum performance.
 
+config BLK_DEV_TC86C001
+	tristate "Toshiba TC86C001 support"
+	help
+	This driver adds support for Toshiba TC86C001 GOKU-S chip.
+
 endif
 
 config BLK_DEV_IDE_PMAC
diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index 569fae71750..d9f029e8ff7 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -22,6 +22,7 @@ ide-core-$(CONFIG_BLK_DEV_IDEPCI)	+= setup-pci.o
 ide-core-$(CONFIG_BLK_DEV_IDEDMA)	+= ide-dma.o
 ide-core-$(CONFIG_PROC_FS)		+= ide-proc.o
 ide-core-$(CONFIG_BLK_DEV_IDEPNP)	+= ide-pnp.o
+ide-core-$(CONFIG_BLK_DEV_IDEACPI)	+= ide-acpi.o
 
 # built-in only drivers from arm/
 ide-core-$(CONFIG_IDE_ARM)		+= arm/ide_arm.o
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
new file mode 100644
index 00000000000..17aea65d7dd
--- /dev/null
+++ b/drivers/ide/ide-acpi.c
@@ -0,0 +1,697 @@
+/*
+ * ide-acpi.c
+ * Provides ACPI support for IDE drives.
+ *
+ * Copyright (C) 2005 Intel Corp.
+ * Copyright (C) 2005 Randy Dunlap
+ * Copyright (C) 2006 SUSE Linux Products GmbH
+ * Copyright (C) 2006 Hannes Reinecke
+ */
+
+#include <linux/ata.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <acpi/acpi.h>
+#include <linux/ide.h>
+#include <linux/pci.h>
+
+#include <acpi/acpi_bus.h>
+#include <acpi/acnames.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acparser.h>
+#include <acpi/acexcep.h>
+#include <acpi/acmacros.h>
+#include <acpi/actypes.h>
+
+#define REGS_PER_GTF		7
+struct taskfile_array {
+	u8	tfa[REGS_PER_GTF];	/* regs. 0x1f1 - 0x1f7 */
+};
+
+struct GTM_buffer {
+	u32	PIO_speed0;
+	u32	DMA_speed0;
+	u32	PIO_speed1;
+	u32	DMA_speed1;
+	u32	GTM_flags;
+};
+
+struct ide_acpi_drive_link {
+	ide_drive_t	*drive;
+	acpi_handle	 obj_handle;
+	u8		 idbuff[512];
+};
+
+struct ide_acpi_hwif_link {
+	ide_hwif_t			*hwif;
+	acpi_handle			 obj_handle;
+	struct GTM_buffer		 gtm;
+	struct ide_acpi_drive_link	 master;
+	struct ide_acpi_drive_link	 slave;
+};
+
+#undef DEBUGGING
+/* note: adds function name and KERN_DEBUG */
+#ifdef DEBUGGING
+#define DEBPRINT(fmt, args...)	\
+		printk(KERN_DEBUG "%s: " fmt, __FUNCTION__, ## args)
+#else
+#define DEBPRINT(fmt, args...)	do {} while (0)
+#endif	/* DEBUGGING */
+
+extern int ide_noacpi;
+extern int ide_noacpitfs;
+extern int ide_noacpionboot;
+
+/**
+ * ide_get_dev_handle - finds acpi_handle and PCI device.function
+ * @dev: device to locate
+ * @handle: returned acpi_handle for @dev
+ * @pcidevfn: return PCI device.func for @dev
+ *
+ * Returns the ACPI object handle to the corresponding PCI device.
+ *
+ * Returns 0 on success, <0 on error.
+ */
+static int ide_get_dev_handle(struct device *dev, acpi_handle *handle,
+			       acpi_integer *pcidevfn)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	unsigned int bus, devnum, func;
+	acpi_integer addr;
+	acpi_handle dev_handle;
+	struct acpi_buffer buffer = {.length = ACPI_ALLOCATE_BUFFER,
+					.pointer = NULL};
+	acpi_status status;
+	struct acpi_device_info	*dinfo = NULL;
+	int ret = -ENODEV;
+
+	bus = pdev->bus->number;
+	devnum = PCI_SLOT(pdev->devfn);
+	func = PCI_FUNC(pdev->devfn);
+	/* ACPI _ADR encoding for PCI bus: */
+	addr = (acpi_integer)(devnum << 16 | func);
+
+	DEBPRINT("ENTER: pci %02x:%02x.%01x\n", bus, devnum, func);
+
+	dev_handle = DEVICE_ACPI_HANDLE(dev);
+	if (!dev_handle) {
+		DEBPRINT("no acpi handle for device\n");
+		goto err;
+	}
+
+	status = acpi_get_object_info(dev_handle, &buffer);
+	if (ACPI_FAILURE(status)) {
+		DEBPRINT("get_object_info for device failed\n");
+		goto err;
+	}
+	dinfo = buffer.pointer;
+	if (dinfo && (dinfo->valid & ACPI_VALID_ADR) &&
+	    dinfo->address == addr) {
+		*pcidevfn = addr;
+		*handle = dev_handle;
+	} else {
+		DEBPRINT("get_object_info for device has wrong "
+			" address: %llu, should be %u\n",
+			dinfo ? (unsigned long long)dinfo->address : -1ULL,
+			(unsigned int)addr);
+		goto err;
+	}
+
+	DEBPRINT("for dev=0x%x.%x, addr=0x%llx, *handle=0x%p\n",
+		 devnum, func, (unsigned long long)addr, *handle);
+	ret = 0;
+err:
+	kfree(dinfo);
+	return ret;
+}
+
+/**
+ * ide_acpi_hwif_get_handle - Get ACPI object handle for a given hwif
+ * @hwif: device to locate
+ *
+ * Retrieves the object handle for a given hwif.
+ *
+ * Returns handle on success, 0 on error.
+ */
+static acpi_handle ide_acpi_hwif_get_handle(ide_hwif_t *hwif)
+{
+	struct device		*dev = hwif->gendev.parent;
+	acpi_handle		dev_handle;
+	acpi_integer		pcidevfn;
+	acpi_handle		chan_handle;
+	int			err;
+
+	DEBPRINT("ENTER: device %s\n", hwif->name);
+
+	if (!dev) {
+		DEBPRINT("no PCI device for %s\n", hwif->name);
+		return NULL;
+	}
+
+	err = ide_get_dev_handle(dev, &dev_handle, &pcidevfn);
+	if (err < 0) {
+		DEBPRINT("ide_get_dev_handle failed (%d)\n", err);
+		return NULL;
+	}
+
+	/* get child objects of dev_handle == channel objects,
+	 * + _their_ children == drive objects */
+	/* channel is hwif->channel */
+	chan_handle = acpi_get_child(dev_handle, hwif->channel);
+	DEBPRINT("chan adr=%d: handle=0x%p\n",
+		 hwif->channel, chan_handle);
+
+	return chan_handle;
+}
+
+/**
+ * ide_acpi_drive_get_handle - Get ACPI object handle for a given drive
+ * @drive: device to locate
+ *
+ * Retrieves the object handle of a given drive. According to the ACPI
+ * spec the drive is a child of the hwif.
+ *
+ * Returns handle on success, 0 on error.
+ */
+static acpi_handle ide_acpi_drive_get_handle(ide_drive_t *drive)
+{
+	ide_hwif_t	*hwif = HWIF(drive);
+	int		 port;
+	acpi_handle	 drive_handle;
+
+	if (!hwif->acpidata)
+		return NULL;
+
+	if (!hwif->acpidata->obj_handle)
+		return NULL;
+
+	port = hwif->channel ? drive->dn - 2: drive->dn;
+
+	DEBPRINT("ENTER: %s at channel#: %d port#: %d\n",
+		 drive->name, hwif->channel, port);
+
+
+	/* TBD: could also check ACPI object VALID bits */
+	drive_handle = acpi_get_child(hwif->acpidata->obj_handle, port);
+	DEBPRINT("drive %s handle 0x%p\n", drive->name, drive_handle);
+
+	return drive_handle;
+}
+
+/**
+ * do_drive_get_GTF - get the drive bootup default taskfile settings
+ * @drive: the drive for which the taskfile settings should be retrieved
+ * @gtf_length: number of bytes of _GTF data returned at @gtf_address
+ * @gtf_address: buffer containing _GTF taskfile arrays
+ *
+ * The _GTF method has no input parameters.
+ * It returns a variable number of register set values (registers
+ * hex 1F1..1F7, taskfiles).
+ * The <variable number> is not known in advance, so have ACPI-CA
+ * allocate the buffer as needed and return it, then free it later.
+ *
+ * The returned @gtf_length and @gtf_address are only valid if the
+ * function return value is 0.
+ */
+static int do_drive_get_GTF(ide_drive_t *drive,
+		     unsigned int *gtf_length, unsigned long *gtf_address,
+		     unsigned long *obj_loc)
+{
+	acpi_status			status;
+	struct acpi_buffer		output;
+	union acpi_object 		*out_obj;
+	ide_hwif_t			*hwif = HWIF(drive);
+	struct device			*dev = hwif->gendev.parent;
+	int				err = -ENODEV;
+	int				port;
+
+	*gtf_length = 0;
+	*gtf_address = 0UL;
+	*obj_loc = 0UL;
+
+	if (ide_noacpi)
+		return 0;
+
+	if (!dev) {
+		DEBPRINT("no PCI device for %s\n", hwif->name);
+		goto out;
+	}
+
+	if (!hwif->acpidata) {
+		DEBPRINT("no ACPI data for %s\n", hwif->name);
+		goto out;
+	}
+
+	port = hwif->channel ? drive->dn - 2: drive->dn;
+
+	if (!drive->acpidata) {
+		if (port == 0) {
+			drive->acpidata = &hwif->acpidata->master;
+			hwif->acpidata->master.drive = drive;
+		} else {
+			drive->acpidata = &hwif->acpidata->slave;
+			hwif->acpidata->slave.drive = drive;
+		}
+	}
+
+	DEBPRINT("ENTER: %s at %s, port#: %d, hard_port#: %d\n",
+		 hwif->name, dev->bus_id, port, hwif->channel);
+
+	if (!drive->present) {
+		DEBPRINT("%s drive %d:%d not present\n",
+			 hwif->name, hwif->channel, port);
+		goto out;
+	}
+
+	/* Get this drive's _ADR info. if not already known. */
+	if (!drive->acpidata->obj_handle) {
+		drive->acpidata->obj_handle = ide_acpi_drive_get_handle(drive);
+		if (!drive->acpidata->obj_handle) {
+			DEBPRINT("No ACPI object found for %s\n",
+				 drive->name);
+			goto out;
+		}
+	}
+
+	/* Setting up output buffer */
+	output.length = ACPI_ALLOCATE_BUFFER;
+	output.pointer = NULL;	/* ACPI-CA sets this; save/free it later */
+
+	/* _GTF has no input parameters */
+	err = -EIO;
+	status = acpi_evaluate_object(drive->acpidata->obj_handle, "_GTF",
+				      NULL, &output);
+	if (ACPI_FAILURE(status)) {
+		printk(KERN_DEBUG
+		       "%s: Run _GTF error: status = 0x%x\n",
+		       __FUNCTION__, status);
+		goto out;
+	}
+
+	if (!output.length || !output.pointer) {
+		DEBPRINT("Run _GTF: "
+		       "length or ptr is NULL (0x%llx, 0x%p)\n",
+		       (unsigned long long)output.length,
+		       output.pointer);
+		goto out;
+	}
+
+	out_obj = output.pointer;
+	if (out_obj->type != ACPI_TYPE_BUFFER) {
+		DEBPRINT("Run _GTF: error: "
+		       "expected object type of ACPI_TYPE_BUFFER, "
+		       "got 0x%x\n", out_obj->type);
+		err = -ENOENT;
+		kfree(output.pointer);
+		goto out;
+	}
+
+	if (!out_obj->buffer.length || !out_obj->buffer.pointer ||
+	    out_obj->buffer.length % REGS_PER_GTF) {
+		printk(KERN_ERR
+		       "%s: unexpected GTF length (%d) or addr (0x%p)\n",
+		       __FUNCTION__, out_obj->buffer.length,
+		       out_obj->buffer.pointer);
+		err = -ENOENT;
+		kfree(output.pointer);
+		goto out;
+	}
+
+	*gtf_length = out_obj->buffer.length;
+	*gtf_address = (unsigned long)out_obj->buffer.pointer;
+	*obj_loc = (unsigned long)out_obj;
+	DEBPRINT("returning gtf_length=%d, gtf_address=0x%lx, obj_loc=0x%lx\n",
+		 *gtf_length, *gtf_address, *obj_loc);
+	err = 0;
+out:
+	return err;
+}
+
+/**
+ * taskfile_load_raw - send taskfile registers to drive
+ * @drive: drive to which output is sent
+ * @gtf: raw ATA taskfile register set (0x1f1 - 0x1f7)
+ *
+ * Outputs IDE taskfile to the drive.
+ */
+static int taskfile_load_raw(ide_drive_t *drive,
+			      const struct taskfile_array *gtf)
+{
+	ide_task_t args;
+	int err = 0;
+
+	DEBPRINT("(0x1f1-1f7): hex: "
+	       "%02x %02x %02x %02x %02x %02x %02x\n",
+	       gtf->tfa[0], gtf->tfa[1], gtf->tfa[2],
+	       gtf->tfa[3], gtf->tfa[4], gtf->tfa[5], gtf->tfa[6]);
+
+	memset(&args, 0, sizeof(ide_task_t));
+	args.command_type = IDE_DRIVE_TASK_NO_DATA;
+	args.data_phase   = TASKFILE_IN;
+	args.handler      = &task_no_data_intr;
+
+	/* convert gtf to IDE Taskfile */
+	args.tfRegister[1] = gtf->tfa[0];	/* 0x1f1 */
+	args.tfRegister[2] = gtf->tfa[1];	/* 0x1f2 */
+	args.tfRegister[3] = gtf->tfa[2];	/* 0x1f3 */
+	args.tfRegister[4] = gtf->tfa[3];	/* 0x1f4 */
+	args.tfRegister[5] = gtf->tfa[4];	/* 0x1f5 */
+	args.tfRegister[6] = gtf->tfa[5];	/* 0x1f6 */
+	args.tfRegister[7] = gtf->tfa[6];	/* 0x1f7 */
+
+	if (ide_noacpitfs) {
+		DEBPRINT("_GTF execution disabled\n");
+		return err;
+	}
+
+	err = ide_raw_taskfile(drive, &args, NULL);
+	if (err)
+		printk(KERN_ERR "%s: ide_raw_taskfile failed: %u\n",
+		       __FUNCTION__, err);
+
+	return err;
+}
+
+/**
+ * do_drive_set_taskfiles - write the drive taskfile settings from _GTF
+ * @drive: the drive to which the taskfile command should be sent
+ * @gtf_length: total number of bytes of _GTF taskfiles
+ * @gtf_address: location of _GTF taskfile arrays
+ *
+ * Write {gtf_address, length gtf_length} in groups of
+ * REGS_PER_GTF bytes.
+ */
+static int do_drive_set_taskfiles(ide_drive_t *drive,
+				  unsigned int gtf_length,
+				  unsigned long gtf_address)
+{
+	int			rc = -ENODEV, err;
+	int			gtf_count = gtf_length / REGS_PER_GTF;
+	int			ix;
+	struct taskfile_array	*gtf;
+
+	if (ide_noacpi)
+		return 0;
+
+	DEBPRINT("ENTER: %s, hard_port#: %d\n", drive->name, drive->dn);
+
+	if (!drive->present)
+		goto out;
+	if (!gtf_count)		/* shouldn't be here */
+		goto out;
+
+	DEBPRINT("total GTF bytes=%u (0x%x), gtf_count=%d, addr=0x%lx\n",
+		 gtf_length, gtf_length, gtf_count, gtf_address);
+
+	if (gtf_length % REGS_PER_GTF) {
+		printk(KERN_ERR "%s: unexpected GTF length (%d)\n",
+		       __FUNCTION__, gtf_length);
+		goto out;
+	}
+
+	rc = 0;
+	for (ix = 0; ix < gtf_count; ix++) {
+		gtf = (struct taskfile_array *)
+			(gtf_address + ix * REGS_PER_GTF);
+
+		/* send all TaskFile registers (0x1f1-0x1f7) *in*that*order* */
+		err = taskfile_load_raw(drive, gtf);
+		if (err)
+			rc = err;
+	}
+
+out:
+	return rc;
+}
+
+/**
+ * ide_acpi_exec_tfs - get then write drive taskfile settings
+ * @drive: the drive for which the taskfile settings should be
+ *         written.
+ *
+ * According to the ACPI spec this should be called after _STM
+ * has been evaluated for the interface. Some ACPI vendors interpret
+ * that as a hard requirement and modify the taskfile according
+ * to the Identify Drive information passed down with _STM.
+ * So one should really make sure to call this only after _STM has
+ * been executed.
+ */
+int ide_acpi_exec_tfs(ide_drive_t *drive)
+{
+	int		ret;
+	unsigned int	gtf_length;
+	unsigned long	gtf_address;
+	unsigned long	obj_loc;
+
+	if (ide_noacpi)
+		return 0;
+
+	DEBPRINT("call get_GTF, drive=%s port=%d\n", drive->name, drive->dn);
+
+	ret = do_drive_get_GTF(drive, &gtf_length, &gtf_address, &obj_loc);
+	if (ret < 0) {
+		DEBPRINT("get_GTF error (%d)\n", ret);
+		return ret;
+	}
+
+	DEBPRINT("call set_taskfiles, drive=%s\n", drive->name);
+
+	ret = do_drive_set_taskfiles(drive, gtf_length, gtf_address);
+	kfree((void *)obj_loc);
+	if (ret < 0) {
+		DEBPRINT("set_taskfiles error (%d)\n", ret);
+	}
+
+	DEBPRINT("ret=%d\n", ret);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(ide_acpi_exec_tfs);
+
+/**
+ * ide_acpi_get_timing - get the channel (controller) timings
+ * @hwif: target IDE interface (channel)
+ *
+ * This function executes the _GTM ACPI method for the target channel.
+ *
+ */
+void ide_acpi_get_timing(ide_hwif_t *hwif)
+{
+	acpi_status		status;
+	struct acpi_buffer	output;
+	union acpi_object 	*out_obj;
+
+	if (ide_noacpi)
+		return;
+
+	DEBPRINT("ENTER:\n");
+
+	if (!hwif->acpidata) {
+		DEBPRINT("no ACPI data for %s\n", hwif->name);
+		return;
+	}
+
+	/* Setting up output buffer for _GTM */
+	output.length = ACPI_ALLOCATE_BUFFER;
+	output.pointer = NULL;	/* ACPI-CA sets this; save/free it later */
+
+	/* _GTM has no input parameters */
+	status = acpi_evaluate_object(hwif->acpidata->obj_handle, "_GTM",
+				      NULL, &output);
+
+	DEBPRINT("_GTM status: %d, outptr: 0x%p, outlen: 0x%llx\n",
+		 status, output.pointer,
+		 (unsigned long long)output.length);
+
+	if (ACPI_FAILURE(status)) {
+		DEBPRINT("Run _GTM error: status = 0x%x\n", status);
+		return;
+	}
+
+	if (!output.length || !output.pointer) {
+		DEBPRINT("Run _GTM: length or ptr is NULL (0x%llx, 0x%p)\n",
+		       (unsigned long long)output.length,
+		       output.pointer);
+		kfree(output.pointer);
+		return;
+	}
+
+	out_obj = output.pointer;
+	if (out_obj->type != ACPI_TYPE_BUFFER) {
+		kfree(output.pointer);
+		DEBPRINT("Run _GTM: error: "
+		       "expected object type of ACPI_TYPE_BUFFER, "
+		       "got 0x%x\n", out_obj->type);
+		return;
+	}
+
+	if (!out_obj->buffer.length || !out_obj->buffer.pointer ||
+	    out_obj->buffer.length != sizeof(struct GTM_buffer)) {
+		kfree(output.pointer);
+		printk(KERN_ERR
+			"%s: unexpected _GTM length (0x%x)[should be 0x%zx] or "
+			"addr (0x%p)\n",
+			__FUNCTION__, out_obj->buffer.length,
+			sizeof(struct GTM_buffer), out_obj->buffer.pointer);
+		return;
+	}
+
+	memcpy(&hwif->acpidata->gtm, out_obj->buffer.pointer,
+	       sizeof(struct GTM_buffer));
+
+	DEBPRINT("_GTM info: ptr: 0x%p, len: 0x%x, exp.len: 0x%Zx\n",
+		 out_obj->buffer.pointer, out_obj->buffer.length,
+		 sizeof(struct GTM_buffer));
+
+	DEBPRINT("_GTM fields: 0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n",
+		 hwif->acpidata->gtm.PIO_speed0,
+		 hwif->acpidata->gtm.DMA_speed0,
+		 hwif->acpidata->gtm.PIO_speed1,
+		 hwif->acpidata->gtm.DMA_speed1,
+		 hwif->acpidata->gtm.GTM_flags);
+
+	kfree(output.pointer);
+}
+EXPORT_SYMBOL_GPL(ide_acpi_get_timing);
+
+/**
+ * ide_acpi_push_timing - set the channel (controller) timings
+ * @hwif: target IDE interface (channel)
+ *
+ * This function executes the _STM ACPI method for the target channel.
+ *
+ * _STM requires Identify Drive data, which has to passed as an argument.
+ * Unfortunately hd_driveid is a mangled version which we can't readily
+ * use; hence we'll get the information afresh.
+ */
+void ide_acpi_push_timing(ide_hwif_t *hwif)
+{
+	acpi_status		status;
+	struct acpi_object_list	input;
+	union acpi_object 	in_params[3];
+	struct ide_acpi_drive_link	*master = &hwif->acpidata->master;
+	struct ide_acpi_drive_link	*slave = &hwif->acpidata->slave;
+
+	if (ide_noacpi)
+		return;
+
+	DEBPRINT("ENTER:\n");
+
+	if (!hwif->acpidata) {
+		DEBPRINT("no ACPI data for %s\n", hwif->name);
+		return;
+	}
+
+	/* Give the GTM buffer + drive Identify data to the channel via the
+	 * _STM method: */
+	/* setup input parameters buffer for _STM */
+	input.count = 3;
+	input.pointer = in_params;
+	in_params[0].type = ACPI_TYPE_BUFFER;
+	in_params[0].buffer.length = sizeof(struct GTM_buffer);
+	in_params[0].buffer.pointer = (u8 *)&hwif->acpidata->gtm;
+	in_params[1].type = ACPI_TYPE_BUFFER;
+	in_params[1].buffer.length = sizeof(struct hd_driveid);
+	in_params[1].buffer.pointer = (u8 *)&master->idbuff;
+	in_params[2].type = ACPI_TYPE_BUFFER;
+	in_params[2].buffer.length = sizeof(struct hd_driveid);
+	in_params[2].buffer.pointer = (u8 *)&slave->idbuff;
+	/* Output buffer: _STM has no output */
+
+	status = acpi_evaluate_object(hwif->acpidata->obj_handle, "_STM",
+				      &input, NULL);
+
+	if (ACPI_FAILURE(status)) {
+		DEBPRINT("Run _STM error: status = 0x%x\n", status);
+	}
+	DEBPRINT("_STM status: %d\n", status);
+}
+EXPORT_SYMBOL_GPL(ide_acpi_push_timing);
+
+/**
+ * ide_acpi_init - initialize the ACPI link for an IDE interface
+ * @hwif: target IDE interface (channel)
+ *
+ * The ACPI spec is not quite clear when the drive identify buffer
+ * should be obtained. Calling IDENTIFY DEVICE during shutdown
+ * is not the best of ideas as the drive might already being put to
+ * sleep. And obviously we can't call it during resume.
+ * So we get the information during startup; but this means that
+ * any changes during run-time will be lost after resume.
+ */
+void ide_acpi_init(ide_hwif_t *hwif)
+{
+	int unit;
+	int			err;
+	struct ide_acpi_drive_link	*master;
+	struct ide_acpi_drive_link	*slave;
+
+	hwif->acpidata = kzalloc(sizeof(struct ide_acpi_hwif_link), GFP_KERNEL);
+	if (!hwif->acpidata)
+		return;
+
+	hwif->acpidata->obj_handle = ide_acpi_hwif_get_handle(hwif);
+	if (!hwif->acpidata->obj_handle) {
+		DEBPRINT("no ACPI object for %s found\n", hwif->name);
+		kfree(hwif->acpidata);
+		hwif->acpidata = NULL;
+		return;
+	}
+
+	/*
+	 * The ACPI spec mandates that we send information
+	 * for both drives, regardless whether they are connected
+	 * or not.
+	 */
+	hwif->acpidata->master.drive = &hwif->drives[0];
+	hwif->drives[0].acpidata = &hwif->acpidata->master;
+	master = &hwif->acpidata->master;
+
+	hwif->acpidata->slave.drive = &hwif->drives[1];
+	hwif->drives[1].acpidata = &hwif->acpidata->slave;
+	slave = &hwif->acpidata->slave;
+
+
+	/*
+	 * Send IDENTIFY for each drive
+	 */
+	if (master->drive->present) {
+		err = taskfile_lib_get_identify(master->drive, master->idbuff);
+		if (err) {
+			DEBPRINT("identify device %s failed (%d)\n",
+				 master->drive->name, err);
+		}
+	}
+
+	if (slave->drive->present) {
+		err = taskfile_lib_get_identify(slave->drive, slave->idbuff);
+		if (err) {
+			DEBPRINT("identify device %s failed (%d)\n",
+				 slave->drive->name, err);
+		}
+	}
+
+	if (ide_noacpionboot) {
+		DEBPRINT("ACPI methods disabled on boot\n");
+		return;
+	}
+
+	/*
+	 * ACPI requires us to call _STM on startup
+	 */
+	ide_acpi_get_timing(hwif);
+	ide_acpi_push_timing(hwif);
+
+	for (unit = 0; unit < MAX_DRIVES; ++unit) {
+		ide_drive_t *drive = &hwif->drives[unit];
+
+		if (drive->present) {
+			/* Execute ACPI startup code */
+			ide_acpi_exec_tfs(drive);
+		}
+	}
+}
+EXPORT_SYMBOL_GPL(ide_acpi_init);
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 5a5c565a32a..176bbc850d6 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1384,6 +1384,9 @@ static int hwif_init(ide_hwif_t *hwif)
 
 done:
 	init_gendisk(hwif);
+
+	ide_acpi_init(hwif);
+
 	hwif->present = 1;	/* success */
 	return 1;
 
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 6c9bd5165bd..c750f6ce770 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -187,6 +187,12 @@ int noautodma = 1;
 
 EXPORT_SYMBOL(noautodma);
 
+#ifdef CONFIG_BLK_DEV_IDEACPI
+int ide_noacpi = 0;
+int ide_noacpitfs = 1;
+int ide_noacpionboot = 1;
+#endif
+
 /*
  * This is declared extern in ide.h, for access by other IDE modules:
  */
@@ -1214,10 +1220,15 @@ EXPORT_SYMBOL(system_bus_clock);
 static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 {
 	ide_drive_t *drive = dev->driver_data;
+	ide_hwif_t *hwif = HWIF(drive);
 	struct request rq;
 	struct request_pm_state rqpm;
 	ide_task_t args;
 
+	/* Call ACPI _GTM only once */
+	if (!(drive->dn % 2))
+		ide_acpi_get_timing(hwif);
+
 	memset(&rq, 0, sizeof(rq));
 	memset(&rqpm, 0, sizeof(rqpm));
 	memset(&args, 0, sizeof(args));
@@ -1235,10 +1246,17 @@ static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 static int generic_ide_resume(struct device *dev)
 {
 	ide_drive_t *drive = dev->driver_data;
+	ide_hwif_t *hwif = HWIF(drive);
 	struct request rq;
 	struct request_pm_state rqpm;
 	ide_task_t args;
 
+	/* Call ACPI _STM only once */
+	if (!(drive->dn % 2))
+		ide_acpi_push_timing(hwif);
+
+	ide_acpi_exec_tfs(drive);
+
 	memset(&rq, 0, sizeof(rq));
 	memset(&rqpm, 0, sizeof(rqpm));
 	memset(&args, 0, sizeof(args));
@@ -1543,6 +1561,24 @@ static int __init ide_setup(char *s)
 	}
 #endif /* CONFIG_BLK_DEV_IDEPCI */
 
+#ifdef CONFIG_BLK_DEV_IDEACPI
+	if (!strcmp(s, "ide=noacpi")) {
+		//printk(" : Disable IDE ACPI support.\n");
+		ide_noacpi = 1;
+		return 1;
+	}
+	if (!strcmp(s, "ide=acpigtf")) {
+		//printk(" : Enable IDE ACPI _GTF support.\n");
+		ide_noacpitfs = 0;
+		return 1;
+	}
+	if (!strcmp(s, "ide=acpionboot")) {
+		//printk(" : Call IDE ACPI methods on boot.\n");
+		ide_noacpionboot = 0;
+		return 1;
+	}
+#endif /* CONFIG_BLK_DEV_IDEACPI */
+
 	/*
 	 * Look for drive options:  "hdx="
 	 */
diff --git a/drivers/ide/pci/Makefile b/drivers/ide/pci/Makefile
index fef08960aa4..6591ff4753c 100644
--- a/drivers/ide/pci/Makefile
+++ b/drivers/ide/pci/Makefile
@@ -9,9 +9,10 @@ obj-$(CONFIG_BLK_DEV_CS5530)		+= cs5530.o
 obj-$(CONFIG_BLK_DEV_CS5535)		+= cs5535.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_HPT34X)		+= hpt34x.o
 obj-$(CONFIG_BLK_DEV_HPT366)		+= hpt366.o
-#obj-$(CONFIG_BLK_DEV_HPT37X)		+= hpt37x.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
@@ -26,6 +27,7 @@ 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
diff --git a/drivers/ide/pci/delkin_cb.c b/drivers/ide/pci/delkin_cb.c
new file mode 100644
index 00000000000..e2672fc65d3
--- /dev/null
+++ b/drivers/ide/pci/delkin_cb.c
@@ -0,0 +1,140 @@
+/*
+ *  linux/drivers/ide/pci/delkin_cb.c
+ *
+ *  Created 20 Oct 2004 by Mark Lord
+ *
+ *  Basic support for Delkin/ASKA/Workbit Cardbus CompactFlash adapter
+ *
+ *  Modeled after the 16-bit PCMCIA driver: ide-cs.c
+ *
+ *  This is slightly peculiar, in that it is a PCI driver,
+ *  but is NOT an IDE PCI driver -- the IDE layer does not directly
+ *  support hot insertion/removal of PCI interfaces, so this driver
+ *  is unable to use the IDE PCI interfaces.  Instead, it uses the
+ *  same interfaces as the ide-cs (PCMCIA) driver uses.
+ *  On the plus side, the driver is also smaller/simpler this way.
+ *
+ *  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.
+ */
+#include <linux/autoconf.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+
+/*
+ * No chip documentation has yet been found,
+ * so these configuration values were pulled from
+ * a running Win98 system using "debug".
+ * This gives around 3MByte/second read performance,
+ * which is about 2/3 of what the chip is capable of.
+ *
+ * There is also a 4KByte mmio region on the card,
+ * but its purpose has yet to be reverse-engineered.
+ */
+static const u8 setup[] = {
+	0x00, 0x05, 0xbe, 0x01, 0x20, 0x8f, 0x00, 0x00,
+	0xa4, 0x1f, 0xb3, 0x1b, 0x00, 0x00, 0x00, 0x80,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0xa4, 0x83, 0x02, 0x13,
+};
+
+static int __devinit
+delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id)
+{
+	unsigned long base;
+	hw_regs_t hw;
+	ide_hwif_t *hwif = NULL;
+	ide_drive_t *drive;
+	int i, rc;
+
+	rc = pci_enable_device(dev);
+	if (rc) {
+		printk(KERN_ERR "delkin_cb: pci_enable_device failed (%d)\n", rc);
+		return rc;
+	}
+	rc = pci_request_regions(dev, "delkin_cb");
+	if (rc) {
+		printk(KERN_ERR "delkin_cb: pci_request_regions failed (%d)\n", rc);
+		pci_disable_device(dev);
+		return rc;
+	}
+	base = pci_resource_start(dev, 0);
+	outb(0x02, base + 0x1e);	/* set nIEN to block interrupts */
+	inb(base + 0x17);		/* read status to clear interrupts */
+	for (i = 0; i < sizeof(setup); ++i) {
+		if (setup[i])
+			outb(setup[i], base + i);
+	}
+	pci_release_regions(dev);	/* IDE layer handles regions itself */
+
+	memset(&hw, 0, sizeof(hw));
+	ide_std_init_ports(&hw, base + 0x10, base + 0x1e);
+	hw.irq = dev->irq;
+	hw.chipset = ide_pci;		/* this enables IRQ sharing */
+
+	rc = ide_register_hw_with_fixup(&hw, &hwif, ide_undecoded_slave);
+	if (rc < 0) {
+		printk(KERN_ERR "delkin_cb: ide_register_hw failed (%d)\n", rc);
+		pci_disable_device(dev);
+		return -ENODEV;
+	}
+	pci_set_drvdata(dev, hwif);
+	hwif->pci_dev = dev;
+	drive = &hwif->drives[0];
+	if (drive->present) {
+		drive->io_32bit = 1;
+		drive->unmask   = 1;
+	}
+	return 0;
+}
+
+static void
+delkin_cb_remove (struct pci_dev *dev)
+{
+	ide_hwif_t *hwif = pci_get_drvdata(dev);
+
+	if (hwif)
+		ide_unregister(hwif->index);
+	pci_disable_device(dev);
+}
+
+static struct pci_device_id delkin_cb_pci_tbl[] __devinitdata = {
+	{