--- /dev/null
+/*
+ * 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, >f_length, >f_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);
/*
- * linux/drivers/ide/pci/hpt366.c Version 0.36 April 25, 2003
+ * linux/drivers/ide/pci/hpt366.c Version 1.01 Dec 23, 2006
*
* Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>
* Portions Copyright (C) 2001 Sun Microsystems, Inc.
* channel caused the cached register value to get out of sync with the
* actual one, the channels weren't serialized, the turnaround shouldn't
* be done on 66 MHz PCI bus
- * - avoid calibrating PLL twice as the second time results in a wrong PCI
- * frequency and thus in the wrong timings for the secondary channel
- * - disable UltraATA/133 for HPT372 by default (50 MHz DPLL clock do not
- * allow for this speed anyway)
- * - add support for HPT302N and HPT371N clocking (the same as for HPT372N)
- * - HPT371/N are single channel chips, so avoid touching the primary channel
- * which exists only virtually (there's no pins for it)
+ * - disable UltraATA/100 for HPT370 by default as the 33 MHz clock being used
+ * does not allow for this speed anyway
+ * - avoid touching disabled channels (e.g. HPT371/N are single channel chips,
+ * their primary channel is kind of virtual, it isn't tied to any pins)
* - fix/remove bad/unused timing tables and use one set of tables for the whole
* HPT37x chip family; save space by introducing the separate transfer mode
* table in which the mode lookup is done
* and for HPT36x the obsolete HDIO_TRISTATE_HWIF handler was called instead
* - pass to init_chipset() handlers a copy of the IDE PCI device structure as
* they tamper with its fields
- * <source@mvista.com>
- *
+ * - pass to the init_setup handlers a copy of the ide_pci_device_t structure
+ * since they may tamper with its fields
+ * - prefix the driver startup messages with the real chip name
+ * - claim the extra 240 bytes of I/O space for all chips
+ * - optimize the rate masking/filtering and the drive list lookup code
+ * - use pci_get_slot() to get to the function 1 of HPT36x/374
+ * - cache offset of the channel's misc. control registers (MCRs) being used
+ * throughout the driver
+ * - only touch the relevant MCR when detecting the cable type on HPT374's
+ * function 1
+ * - rename all the register related variables consistently
+ * - move all the interrupt twiddling code from the speedproc handlers into
+ * init_hwif_hpt366(), also grouping all the DMA related code together there
+ * - merge two HPT37x speedproc handlers, fix the PIO timing register mask and
+ * separate the UltraDMA and MWDMA masks there to avoid changing PIO timings
+ * when setting an UltraDMA mode
+ * - fix hpt3xx_tune_drive() to set the PIO mode requested, not always select
+ * the best possible one
+ * - clean up DMA timeout handling for HPT370
+ * - switch to using the enumeration type to differ between the numerous chip
+ * variants, matching PCI device/revision ID with the chip type early, at the
+ * init_setup stage
+ * - extend the hpt_info structure to hold the DPLL and PCI clock frequencies,
+ * stop duplicating it for each channel by storing the pointer in the pci_dev
+ * structure: first, at the init_setup stage, point it to a static "template"
+ * with only the chip type and its specific base DPLL frequency, the highest
+ * supported DMA mode, and the chip settings table pointer filled, then, at
+ * the init_chipset stage, allocate per-chip instance and fill it with the
+ * rest of the necessary information
+ * - get rid of the constant thresholds in the HPT37x PCI clock detection code,
+ * switch to calculating PCI clock frequency based on the chip's base DPLL
+ * frequency
+ * - switch to using the DPLL clock and enable UltraATA/133 mode by default on
+ * anything newer than HPT370/A
+ * - fold PCI clock detection and DPLL setup code into init_chipset_hpt366(),
+ * also fixing the interchanged 25/40 MHz PCI clock cases for HPT36x chips;
+ * unify HPT36x/37x timing setup code and the speedproc handlers by joining
+ * the register setting lists into the table indexed by the clock selected
+ * Sergei Shtylyov, <sshtylyov@ru.mvista.com> or <source@mvista.com>
*/
-
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
};
#define HPT366_DEBUG_DRIVE_INFO 0
-#define HPT374_ALLOW_ATA133_6 0
-#define HPT371_ALLOW_ATA133_6 0
-#define HPT302_ALLOW_ATA133_6 0
-#define HPT372_ALLOW_ATA133_6 0
-#define HPT370_ALLOW_ATA100_5 1
+#define HPT374_ALLOW_ATA133_6 1
+#define HPT371_ALLOW_ATA133_6 1
+#define HPT302_ALLOW_ATA133_6 1
+#define HPT372_ALLOW_ATA133_6 1
+#define HPT370_ALLOW_ATA100_5 0
#define HPT366_ALLOW_ATA66_4 1
#define HPT366_ALLOW_ATA66_3 1
#define HPT366_MAX_DEVS 8
-#define F_LOW_PCI_33 0x23
-#define F_LOW_PCI_40 0x29
-#define F_LOW_PCI_50 0x2d
-#define F_LOW_PCI_66 0x42
+/* Supported ATA clock frequencies */
+enum ata_clock {
+ ATA_CLOCK_25MHZ,
+ ATA_CLOCK_33MHZ,
+ ATA_CLOCK_40MHZ,
+ ATA_CLOCK_50MHZ,
+ ATA_CLOCK_66MHZ,
+ NUM_ATA_CLOCKS
+};
/*
- * Hold all the highpoint quirks and revision information in one
- * place.
+ * Hold all the HighPoint chip information in one place.
*/
-struct hpt_info
-{
+struct hpt_info {
+ u8 chip_type; /* Chip type */
u8 max_mode; /* Speeds allowed */
- int revision; /* Chipset revision */
- int flags; /* Chipset properties */
-#define PLL_MODE 1
-#define IS_3xxN 2
-#define PCI_66MHZ 4
- /* Speed table */
- u32 *speed;
+ u8 dpll_clk; /* DPLL clock in MHz */
+ u8 pci_clk; /* PCI clock in MHz */
+ u32 **settings; /* Chipset settings table */
};
-/*
- * This wants fixing so that we do everything not by classrev
- * (which breaks on the newest chips) but by creating an
- * enumeration of chip variants and using that
- */
+/* Supported HighPoint chips */
+enum {
+ HPT36x,
+ HPT370,
+ HPT370A,
+ HPT374,
+ HPT372,
+ HPT372A,
+ HPT302,
+ HPT371,
+ HPT372N,
+ HPT302N,
+ HPT371N
+};
+
+static u32 *hpt36x_settings[NUM_ATA_CLOCKS] = {
+ twenty_five_base_hpt36x,
+ thirty_three_base_hpt36x,
+ forty_base_hpt36x,
+ NULL,
+ NULL
+};
+
+static u32 *hpt37x_settings[NUM_ATA_CLOCKS] = {
+ NULL,
+ thirty_three_base_hpt37x,
+ NULL,
+ fifty_base_hpt37x,
+ sixty_six_base_hpt37x
+};
+
+static struct hpt_info hpt36x __devinitdata = {
+ .chip_type = HPT36x,
+ .max_mode = (HPT366_ALLOW_ATA66_4 || HPT366_ALLOW_ATA66_3) ? 2 : 1,
+ .dpll_clk = 0, /* no DPLL */
+ .settings = hpt36x_settings
+};
+
+static struct hpt_info hpt370 __devinitdata = {
+ .chip_type = HPT370,
+ .max_mode = HPT370_ALLOW_ATA100_5 ? 3 : 2,
+ .dpll_clk = 48,
+ .settings = hpt37x_settings
+};
+
+static struct hpt_info hpt370a __devinitdata = {
+ .chip_type = HPT370A,
+ .max_mode = HPT370_ALLOW_ATA100_5 ? 3 : 2,
+ .dpll_clk = 48,
+ .settings = hpt37x_settings
+};
+
+static struct hpt_info hpt374 __devinitdata = {
+ .chip_type = HPT374,
+ .max_mode = HPT374_ALLOW_ATA133_6 ? 4 : 3,
+ .dpll_clk = 48,
+ .settings = hpt37x_settings
+};
+
+static struct hpt_info hpt372 __devinitdata = {
+ .chip_type = HPT372,
+ .max_mode = HPT372_ALLOW_ATA133_6 ? 4 : 3,
+ .dpll_clk = 55,
+ .settings = hpt37x_settings
+};
+
+static struct hpt_info hpt372a __devinitdata = {
+ .chip_type = HPT372A,
+ .max_mode = HPT372_ALLOW_ATA133_6 ? 4 : 3,
+ .dpll_clk = 66,
+ .settings = hpt37x_settings
+};
+
+static struct hpt_info hpt302 __devinitdata = {
+ .chip_type = HPT302,
+ .max_mode = HPT302_ALLOW_ATA133_6 ? 4 : 3,
+ .dpll_clk = 66,
+ .settings = hpt37x_settings
+};
+
+static struct hpt_info hpt371 __devinitdata = {
+ .chip_type = HPT371,
+ .max_mode = HPT371_ALLOW_ATA133_6 ? 4 : 3,
+ .dpll_clk = 66,
+ .settings = hpt37x_settings
+};
+
+static struct hpt_info hpt372n __devinitdata = {
+ .chip_type = HPT372N,
+ .max_mode = HPT372_ALLOW_ATA133_6 ? 4 : 3,
+ .dpll_clk = 77,
+ .settings = hpt37x_settings
+};
+
+static struct hpt_info hpt302n __devinitdata = {
+ .chip_type = HPT302N,
+ .max_mode = HPT302_ALLOW_ATA133_6 ? 4 : 3,
+ .dpll_clk = 77,
+};
-static __devinit u32 hpt_revision (struct pci_dev *dev)
+static struct hpt_info hpt371n __devinitdata = {
+ .chip_type = HPT371N,
+ .max_mode = HPT371_ALLOW_ATA133_6 ? 4 : 3,
+ .dpll_clk = 77,
+ .settings = hpt37x_settings
+};
+
+static int check_in_drive_list(ide_drive_t *drive, const char **list)
{
- u32 class_rev;
- pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
- class_rev &= 0xff;
-
- switch(dev->device) {
- /* Remap new 372N onto 372 */
- case PCI_DEVICE_ID_TTI_HPT372N:
- class_rev = PCI_DEVICE_ID_TTI_HPT372; break;
- case PCI_DEVICE_ID_TTI_HPT374:
- class_rev = PCI_DEVICE_ID_TTI_HPT374; break;
- case PCI_DEVICE_ID_TTI_HPT371:
- class_rev = PCI_DEVICE_ID_TTI_HPT371; break;
- case PCI_DEVICE_ID_TTI_HPT302:
- class_rev = PCI_DEVICE_ID_TTI_HPT302; break;
- case PCI_DEVICE_ID_TTI_HPT372:
- class_rev = PCI_DEVICE_ID_TTI_HPT372; break;
- default:
- break;
- }
- return class_rev;
-}
+ struct hd_driveid *id = drive->id;
-static int check_in_drive_lists(ide_drive_t *drive, const char **list);
+ while (*list)
+ if (!strcmp(*list++,id->model))
+ return 1;
+ return 0;
+}
-static u8 hpt3xx_ratemask (ide_drive_t *drive)
+static u8 hpt3xx_ratemask(ide_drive_t *drive)
{
- ide_hwif_t *hwif = drive->hwif;
- struct hpt_info *info = ide_get_hwifdata(hwif);
- u8 mode = 0;
-
- /* FIXME: TODO - move this to set info->mode once at boot */
-
- if (info->revision >= 8) { /* HPT374 */
- mode = (HPT374_ALLOW_ATA133_6) ? 4 : 3;
- } else if (info->revision >= 7) { /* HPT371 */
- mode = (HPT371_ALLOW_ATA133_6) ? 4 : 3;
- } else if (info->revision >= 6) { /* HPT302 */
- mode = (HPT302_ALLOW_ATA133_6) ? 4 : 3;
- } else if (info->revision >= 5) { /* HPT372 */
- mode = (HPT372_ALLOW_ATA133_6) ? 4 : 3;
- } else if (info->revision >= 4) { /* HPT370A */
- mode = (HPT370_ALLOW_ATA100_5) ? 3 : 2;
- } else if (info->revision >= 3) { /* HPT370 */
- mode = (HPT370_ALLOW_ATA100_5) ? 3 : 2;
- mode = (check_in_drive_lists(drive, bad_ata33)) ? 0 : mode;
- } else { /* HPT366 and HPT368 */
- mode = (check_in_drive_lists(drive, bad_ata33)) ? 0 : 2;
- }
+ struct hpt_info *info = pci_get_drvdata(HWIF(drive)->pci_dev);
+ u8 mode = info->max_mode;
+
if (!eighty_ninty_three(drive) && mode)
mode = min(mode, (u8)1);
return mode;
* either PIO or UDMA modes 0,4,5
*/
-static u8 hpt3xx_ratefilter (ide_drive_t *drive, u8 speed)
+static u8 hpt3xx_ratefilter(ide_drive_t *drive, u8 speed)
{
- ide_hwif_t *hwif = drive->hwif;
- struct hpt_info *info = ide_get_hwifdata(hwif);
+ struct hpt_info *info = pci_get_drvdata(HWIF(drive)->pci_dev);
+ u8 chip_type = info->chip_type;
u8 mode = hpt3xx_ratemask(drive);
if (drive->media != ide_disk)
return min(speed, (u8)XFER_PIO_4);
- switch(mode) {
+ switch (mode) {
case 0x04:
- speed = min(speed, (u8)XFER_UDMA_6);
+ speed = min_t(u8, speed, XFER_UDMA_6);
break;
case 0x03:
- speed = min(speed, (u8)XFER_UDMA_5);
- if (info->revision >= 5)
+ speed = min_t(u8, speed, XFER_UDMA_5);
+ if (chip_type >= HPT374)
break;
- if (check_in_drive_lists(drive, bad_ata100_5))
- speed = min(speed, (u8)XFER_UDMA_4);
- break;
+ if (!check_in_drive_list(drive, bad_ata100_5))
+ goto check_bad_ata33;
+ /* fall thru */
case 0x02:
- speed = min(speed, (u8)XFER_UDMA_4);
- /*
- * CHECK ME, Does this need to be set to 5 ??
- */
- if (info->revision >= 3)
- break;
- if ((check_in_drive_lists(drive, bad_ata66_4)) ||
- (!(HPT366_ALLOW_ATA66_4)))
- speed = min(speed, (u8)XFER_UDMA_3);
- if ((check_in_drive_lists(drive, bad_ata66_3)) ||
- (!(HPT366_ALLOW_ATA66_3)))
- speed = min(speed, (u8)XFER_UDMA_2);
- break;
+ speed = min_t(u8, speed, XFER_UDMA_4);
+
+ /*
+ * CHECK ME, Does this need to be changed to HPT374 ??
+ */
+ if (chip_type >= HPT370)
+ goto check_bad_ata33;
+ if (HPT366_ALLOW_ATA66_4 &&
+ !check_in_drive_list(drive, bad_ata66_4))
+ goto check_bad_ata33;
+
+ speed = min_t(u8, speed, XFER_UDMA_3);
+ if (HPT366_ALLOW_ATA66_3 &&
+ !check_in_drive_list(drive, bad_ata66_3))
+ goto check_bad_ata33;
+ /* fall thru */
case 0x01:
- speed = min(speed, (u8)XFER_UDMA_2);
- /*
- * CHECK ME, Does this need to be set to 5 ??
- */
- if (info->revision >= 3)
+ speed = min_t(u8, speed, XFER_UDMA_2);
+
+ check_bad_ata33:
+ if (chip_type >= HPT370A)
break;
- if (check_in_drive_lists(drive, bad_ata33))
- speed = min(speed, (u8)XFER_MW_DMA_2);
- break;
+ if (!check_in_drive_list(drive, bad_ata33))
+ break;
+ /* fall thru */
case 0x00:
default:
- speed = min(speed, (u8)XFER_MW_DMA_2);
+ speed = min_t(u8, speed, XFER_MW_DMA_2);
break;
}
return speed;
}
-static int check_in_drive_lists (ide_drive_t *drive, const char **list)
-{
- struct hd_driveid *id = drive->id;
-
- if (quirk_drives == list) {
- while (*list)
- if (strstr(id->model, *list++))
- return 1;
- } else {
- while (*list)
- if (!strcmp(*list++,id->model))
- return 1;
- }
- return 0;
-}
-
-static u32 pci_bus_clock_list(u8 speed, u32 *chipset_table)
+static u32 get_speed_setting(u8 speed, struct hpt_info *info)
{
int i;
for (i = 0; i < ARRAY_SIZE(xfer_speeds) - 1; i++)
if (xfer_speeds[i] == speed)
break;
- return chipset_table[i];
+ /*
+ * NOTE: info->settings only points to the pointer
+ * to the list of the actual register values
+ */
+ return (*info->settings)[i];
}
static int hpt36x_tune_chipset(ide_drive_t *drive, u8 xferspeed)
{
- ide_hwif_t *hwif = drive->hwif;
- struct pci_dev *dev = hwif->pci_dev;
- struct hpt_info *info = ide_get_hwifdata(hwif);
- u8 speed = hpt3xx_ratefilter(drive, xferspeed);
- u8 regtime = (drive->select.b.unit & 0x01) ? 0x44 : 0x40;
- u8 regfast = (hwif->channel) ? 0x55 : 0x51;
- u8 drive_fast = 0;
- u32 reg1 = 0, reg2 = 0;
-
- /*
- * Disable the "fast interrupt" prediction.
- */
- pci_read_config_byte(dev, regfast, &drive_fast);
- if (drive_fast & 0x80)
- pci_write_config_byte(dev, regfast, drive_fast & ~0x80);
-
- reg2 = pci_bus_clock_list(speed, info->speed);
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ struct hpt_info *info = pci_get_drvdata(dev);
+ u8 speed = hpt3xx_ratefilter(drive, xferspeed);
+ u8 itr_addr = drive->dn ? 0x44 : 0x40;
+ u32 itr_mask = speed < XFER_MW_DMA_0 ? 0x30070000 :
+ (speed < XFER_UDMA_0 ? 0xc0070000 : 0xc03800ff);
+ u32 new_itr = get_speed_setting(speed, info);
+ u32 old_itr = 0;
/*
- * Disable on-chip PIO FIFO/buffer
- * (to avoid problems handling I/O errors later)
+ * Disable on-chip PIO FIFO/buffer (and PIO MST mode as well)
+ * to avoid problems handling I/O errors later
*/
- pci_read_config_dword(dev, regtime, ®1);
- if (speed >= XFER_MW_DMA_0) {
- reg2 = (reg2 & ~0xc0000000) | (reg1 & 0xc0000000);
- } else {
- reg2 = (reg2 & ~0x30070000) | (reg1 & 0x30070000);
- }
- reg2 &= ~0x80000000;
+ pci_read_config_dword(dev, itr_addr, &old_itr);
+ new_itr = (new_itr & ~itr_mask) | (old_itr & itr_mask);
+ new_itr &= ~0xc0000000;
- pci_write_config_dword(dev, regtime, reg2);
+ pci_write_config_dword(dev, itr_addr, new_itr);
return ide_config_drive_speed(drive, speed);
}
-static int hpt370_tune_chipset(ide_drive_t *drive, u8 xferspeed)
+static int hpt37x_tune_chipset(ide_drive_t *drive, u8 xferspeed)
{
- ide_hwif_t *hwif = drive->hwif;
- struct pci_dev *dev = hwif->pci_dev;
- struct hpt_info *info = ide_get_hwifdata(hwif);
- u8 speed = hpt3xx_ratefilter(drive, xferspeed);
- u8 regfast = (drive->hwif->channel) ? 0x55 : 0x51;
- u8 drive_pci = 0x40 + (drive->dn * 4);
- u8 new_fast = 0, drive_fast = 0;
- u32 list_conf = 0, drive_conf = 0;
- u32 conf_mask = (speed >= XFER_MW_DMA_0) ? 0xc0000000 : 0x30070000;
-
- /*
- * Disable the "fast interrupt" prediction.
- * don't holdoff on interrupts. (== 0x01 despite what the docs say)
- */
- pci_read_config_byte(dev, regfast, &drive_fast);
- new_fast = drive_fast;
- if (new_fast & 0x02)
- new_fast &= ~0x02;
-
-#ifdef HPT_DELAY_INTERRUPT
- if (new_fast & 0x01)
- new_fast &= ~0x01;
-#else
- if ((new_fast & 0x01) == 0)
- new_fast |= 0x01;
-#endif
- if (new_fast != drive_fast)
- pci_write_config_byte(dev, regfast, new_fast);
-
- list_conf = pci_bus_clock_list(speed, info->speed);
-
- pci_read_config_dword(dev, drive_pci, &drive_conf);
- list_conf = (list_conf & ~conf_mask) | (drive_conf & conf_mask);
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ struct hpt_info *info = pci_get_drvdata(dev);
+ u8 speed = hpt3xx_ratefilter(drive, xferspeed);
+ u8 itr_addr = 0x40 + (drive->dn * 4);
+ u32 itr_mask = speed < XFER_MW_DMA_0 ? 0x303c0000 :
+ (speed < XFER_UDMA_0 ? 0xc03c0000 : 0xc1c001ff);
+ u32 new_itr = get_speed_setting(speed, info);
+ u32 old_itr = 0;
+
+ pci_read_config_dword(dev, itr_addr, &old_itr);
+ new_itr = (new_itr & ~itr_mask) | (old_itr & itr_mask);
if (speed < XFER_MW_DMA_0)
- list_conf &= ~0x80000000; /* Disable on-chip PIO FIFO/buffer */
- pci_write_config_dword(dev, drive_pci, list_conf);
+ new_itr &= ~0x80000000; /* Disable on-chip PIO FIFO/buffer */
+ pci_write_config_dword(dev, itr_addr, new_itr);
return ide_config_drive_speed(drive, speed);
}
-static int hpt372_tune_chipset(ide_drive_t *drive, u8 xferspeed)
+static int hpt3xx_tune_chipset(ide_drive_t *drive, u8 speed)
{
- ide_hwif_t *hwif = drive->hwif;
- struct pci_dev *dev = hwif->pci_dev;
- struct hpt_info *info = ide_get_hwifdata(hwif);
- u8 speed = hpt3xx_ratefilter(drive, xferspeed);
- u8 regfast = (drive->hwif->channel) ? 0x55 : 0x51;
- u8 drive_fast = 0, drive_pci = 0x40 + (drive->dn * 4);
- u32 list_conf = 0, drive_conf = 0;
- u32 conf_mask = (speed >= XFER_MW_DMA_0) ? 0xc0000000 : 0x30070000;
-
- /*
- * Disable the "fast interrupt" prediction.
- * don't holdoff on interrupts. (== 0x01 despite what the docs say)
- */
- pci_read_config_byte(dev, regfast, &drive_fast);
- drive_fast &= ~0x07;
- pci_write_config_byte(dev, regfast, drive_fast);
-
- list_conf = pci_bus_clock_list(speed, info->speed);
- pci_read_config_dword(dev, drive_pci, &drive_conf);
- list_conf = (list_conf & ~conf_mask) | (drive_conf & conf_mask);
- if (speed < XFER_MW_DMA_0)
- list_conf &= ~0x80000000; /* Disable on-chip PIO FIFO/buffer */
- pci_write_config_dword(dev, drive_pci, list_conf);
-
- return ide_config_drive_speed(drive, speed);
-}
+ ide_hwif_t *hwif = HWIF(drive);
+ struct hpt_info *info = pci_get_drvdata(hwif->pci_dev);
-static int hpt3xx_tune_chipset (ide_drive_t *drive, u8 speed)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct hpt_info *info = ide_get_hwifdata(hwif);
-
- if (info->revision >= 8)
- return hpt372_tune_chipset(drive, speed); /* not a typo */
- else if (info->revision >= 5)
- return hpt372_tune_chipset(drive, speed);
- else if (info->revision >= 3)
- return hpt370_tune_chipset(drive, speed);
+ if (info->chip_type >= HPT370)
+ return hpt37x_tune_chipset(drive, speed);
else /* hpt368: hpt_minimum_revision(dev, 2) */
return hpt36x_tune_chipset(drive, speed);
}
-static void hpt3xx_tune_drive (ide_drive_t *drive, u8 pio)
+static void hpt3xx_tune_drive(ide_drive_t *drive, u8 pio)
{
- pio = ide_get_best_pio_mode(drive, 255, pio, NULL);
- (void) hpt3xx_tune_chipset(drive, (XFER_PIO_0 + pio));
+ pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
+ (void) hpt3xx_tune_chipset (drive, XFER_PIO_0 + pio);
}
/*
* This allows the configuration of ide_pci chipset registers
* for cards that learn about the drive's UDMA, DMA, PIO capabilities
- * after the drive is reported by the OS. Initially for designed for
+ * after the drive is reported by the OS. Initially designed for
* HPT366 UDMA chipset by HighPoint|Triones Technologies, Inc.
*
- * check_in_drive_lists(drive, bad_ata66_4)
- * check_in_drive_lists(drive, bad_ata66_3)
- * check_in_drive_lists(drive, bad_ata33)
- *
*/
-static int config_chipset_for_dma (ide_drive_t *drive)
+static int config_chipset_for_dma(ide_drive_t *drive)
{
u8 speed = ide_dma_speed(drive, hpt3xx_ratemask(drive));
- ide_hwif_t *hwif = drive->hwif;
- struct hpt_info *info = ide_get_hwifdata(hwif);
if (!speed)
return 0;
- /* If we don't have any timings we can't do a lot */
- if (info->speed == NULL)
- return 0;
-
(void) hpt3xx_tune_chipset(drive, speed);
return ide_dma_enable(drive);
}
-static int hpt3xx_quirkproc (ide_drive_t *drive)
+static int hpt3xx_quirkproc(ide_drive_t *drive)
{
- return ((int) check_in_drive_lists(drive, quirk_drives));
+ struct hd_driveid *id = drive->id;
+ const char **list = quirk_drives;
+
+ while (*list)
+ if (strstr(id->model, *list++))
+ return 1;
+ return 0;
}
-static void hpt3xx_intrproc (ide_drive_t *drive)
+static void hpt3xx_intrproc(ide_drive_t *drive)
{
- ide_hwif_t *hwif = drive->hwif;
+ ide_hwif_t *hwif = HWIF(drive);
if (drive->quirk_list)
return;
/* drives in the quirk_list may not like intr setups/cleanups */
- hwif->OUTB(drive->ctl|2, IDE_CONTROL_REG);
+ hwif->OUTB(drive->ctl | 2, IDE_CONTROL_REG);
}
-static void hpt3xx_maskproc (ide_drive_t *drive, int mask)
+static void hpt3xx_maskproc(ide_drive_t *drive, int mask)
{
- ide_hwif_t *hwif = drive->hwif;
- struct hpt_info *info = ide_get_hwifdata(hwif);
- struct pci_dev *dev = hwif->pci_dev;
+ ide_hwif_t *hwif = HWIF(drive);
+ struct pci_dev *dev = hwif->pci_dev;
+ struct hpt_info *info = pci_get_drvdata(dev);
if (drive->quirk_list) {
- if (info->revision >= 3) {
- u8 reg5a = 0;
- pci_read_config_byte(dev, 0x5a, ®5a);
- if (((reg5a & 0x10) >> 4) != mask)
- pci_write_config_byte(dev, 0x5a, mask ? (reg5a | 0x10) : (reg5a & ~0x10));
+ if (info->chip_type >= HPT370) {
+ u8 scr1 = 0;
+
+ pci_read_config_byte(dev, 0x5a, &scr1);
+ if (((scr1 & 0x10) >> 4) != mask) {
+ if (mask)
+ scr1 |= 0x10;
+ else
+ scr1 &= ~0x10;
+ pci_write_config_byte(dev, 0x5a, scr1);
+ }
} else {
- if (mask) {
+ if (mask)
disable_irq(hwif->irq);
- } else {
- enable_irq(hwif->irq);
- }
+ else
+ enable_irq (hwif->irq);
}
- } else {
- if (IDE_CONTROL_REG)
- hwif->OUTB(mask ? (drive->ctl | 2) :
- (drive->ctl & ~2),
- IDE_CONTROL_REG);
- }
+ } else
+ hwif->OUTB(mask ? (drive->ctl | 2) : (drive->ctl & ~2),
+ IDE_CONTROL_REG);
}
-static int hpt366_config_drive_xfer_rate (ide_drive_t *drive)
+static int hpt366_config_drive_xfer_rate(ide_drive_t *drive)
{
- ide_hwif_t *hwif = drive->hwif;
+ ide_hwif_t *hwif = HWIF(drive);
struct hd_driveid *id = drive->id;
drive->init_speed = 0;
if ((id->capability & 1) && drive->autodma) {
-
- if (ide_use_dma(drive)) {
- if (config_chipset_for_dma(drive))
- return hwif->ide_dma_on(drive);
- }
+ if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);
goto fast_ata_pio;
} else if ((id->capability & 8) || (id->field_valid & 2)) {
fast_ata_pio:
- hpt3xx_tune_drive(drive, 5);
+ hpt3xx_tune_drive(drive, 255);
return hwif->ide_dma_off_quietly(drive);
}
/* IORDY not supported */
}
/*
- * This is specific to the HPT366 UDMA bios chipset
+ * This is specific to the HPT366 UDMA chipset
* by HighPoint|Triones Technologies, Inc.
*/
-static int hpt366_ide_dma_lostirq (ide_drive_t *drive)
+static int hpt366_ide_dma_lostirq(ide_drive_t *drive)
{
- struct pci_dev *dev = HWIF(drive)->pci_dev;
- u8 reg50h = 0, reg52h = 0, reg5ah = 0;
-
- pci_read_config_byte(dev, 0x50, ®50h);
- pci_read_config_byte(dev, 0x52, ®52h);
- pci_read_config_byte(dev, 0x5a, ®5ah);
- printk("%s: (%s) reg50h=0x%02x, reg52h=0x%02x, reg5ah=0x%02x\n",
- drive->name, __FUNCTION__, reg50h, reg52h, reg5ah);
- if (reg5ah & 0x10)
- pci_write_config_byte(dev, 0x5a, reg5ah & ~0x10);
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ u8 mcr1 = 0, mcr3 = 0, scr1 = 0;
+
+ pci_read_config_byte(dev, 0x50, &mcr1);
+ pci_read_config_byte(dev, 0x52, &mcr3);
+ pci_read_config_byte(dev, 0x5a, &scr1);
+ printk("%s: (%s) mcr1=0x%02x, mcr3=0x%02x, scr1=0x%02x\n",
+ drive->name, __FUNCTION__, mcr1, mcr3, scr1);
+ if (scr1 & 0x10)
+ pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
return __ide_dma_lostirq(drive);
}
-static void hpt370_clear_engine (ide_drive_t *drive)
+static void hpt370_clear_engine(ide_drive_t *drive)
{
- u8 regstate = HWIF(drive)->channel ? 0x54 : 0x50;
- pci_write_config_byte(HWIF(drive)->pci_dev, regstate, 0x37);
+ ide_hwif_t *hwif = HWIF(drive);
+
+ pci_write_config_byte(hwif->pci_dev, hwif->select_data, 0x37);
udelay(10);
}
+static void hpt370_irq_timeout(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = HWIF(drive);
+ u16 bfifo = 0;
+ u8 dma_cmd;
+
+ pci_read_config_word(hwif->pci_dev, hwif->select_data + 2, &bfifo);
+ printk(KERN_DEBUG "%s: %d bytes in FIFO\n", drive->name, bfifo & 0x1ff);
+
+ /* get DMA command mode */
+ dma_cmd = hwif->INB(hwif->dma_command);
+ /* stop DMA */
+ hwif->OUTB(dma_cmd & ~0x1, hwif->dma_command);
+ hpt370_clear_engine(drive);
+}
+
static void hpt370_ide_dma_start(ide_drive_t *drive)
{
#ifdef HPT_RESET_STATE_ENGINE
ide_dma_start(drive);
}
-static int hpt370_ide_dma_end (ide_drive_t *drive)
+static int hpt370_ide_dma_end(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- u8 dma_stat = hwif->INB(hwif->dma_status);
+ u8 dma_stat = hwif->INB(hwif->dma_status);
if (dma_stat & 0x01) {
/* wait a little */
udelay(20);
dma_stat = hwif->INB(hwif->dma_status);
+ if (dma_stat & 0x01)
+ hpt370_irq_timeout(drive);
}
- if ((dma_stat & 0x01) != 0)
- /* fallthrough */
- (void) HWIF(drive)->ide_dma_timeout(drive);
-
return __ide_dma_end(drive);
}
-static void hpt370_lostirq_timeout (ide_drive_t *drive)
+static int hpt370_ide_dma_timeout(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
- u8 bfifo = 0, reginfo = hwif->channel ? 0x56 : 0x52;
- u8 dma_stat = 0, dma_cmd = 0;
-
- pci_read_config_byte(HWIF(drive)->pci_dev, reginfo, &bfifo);
- printk(KERN_DEBUG "%s: %d bytes in FIFO\n", drive->name, bfifo);
- hpt370_clear_engine(drive);
- /* get dma command mode */
- dma_cmd = hwif->INB(hwif->dma_command);
- /* stop dma */
- hwif->OUTB(dma_cmd & ~0x1, hwif->dma_command);
- dma_stat = hwif->INB(hwif->dma_status);
- /* clear errors */
- hwif->OUTB(dma_stat | 0x6, hwif->dma_status);
-}
-
-static int hpt370_ide_dma_timeout (ide_drive_t *drive)
-{
- hpt370_lostirq_timeout(drive);
- hpt370_clear_engine(drive);
+ hpt370_irq_timeout(drive);
return __ide_dma_timeout(drive);
}
-static int hpt370_ide_dma_lostirq (ide_drive_t *drive)
-{
- hpt370_lostirq_timeout(drive);
- hpt370_clear_engine(drive);
- return __ide_dma_lostirq(drive);
-}
-
/* returns 1 if DMA IRQ issued, 0 otherwise */
static int hpt374_ide_dma_test_irq(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
u16 bfifo = 0;
- u8 reginfo = hwif->channel ? 0x56 : 0x52;
- u8 dma_stat;
+ u8 dma_stat;
- pci_read_config_word(hwif->pci_dev, reginfo, &bfifo);
+ pci_read_config_word(hwif->pci_dev, hwif->select_data + 2, &bfifo);
if (bfifo & 0x1FF) {
// printk("%s: %d bytes in FIFO\n", drive->name, bfifo);
return 0;
dma_stat = hwif->INB(hwif->dma_status);
/* return 1 if INTR asserted */
- if ((dma_stat & 4) == 4)
+ if (dma_stat & 4)
return 1;
if (!drive->waiting_for_dma)
return 0;
}
-static int hpt374_ide_dma_end (ide_drive_t *drive)
+static int hpt374_ide_dma_end(ide_drive_t *drive)
{
- struct pci_dev *dev = HWIF(drive)->pci_dev;
ide_hwif_t *hwif = HWIF(drive);
- u8 msc_stat = 0, mscreg = hwif->channel ? 0x54 : 0x50;
- u8 bwsr_stat = 0, bwsr_mask = hwif->channel ? 0x02 : 0x01;
-
- pci_read_config_byte(dev, 0x6a, &bwsr_stat);
- pci_read_config_byte(dev, mscreg, &msc_stat);
- if ((bwsr_stat & bwsr_mask) == bwsr_mask)
- pci_write_config_byte(dev, mscreg, msc_stat|0x30);
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 mcr = 0, mcr_addr = hwif->select_data;
+ u8 bwsr = 0, mask = hwif->channel ? 0x02 : 0x01;
+
+ pci_read_config_byte(dev, 0x6a, &bwsr);
+ pci_read_config_byte(dev, mcr_addr, &mcr);
+ if (bwsr & mask)
+ pci_write_config_byte(dev, mcr_addr, mcr | 0x30);
return __ide_dma_end(drive);
}
* @mode: clocking mode (0x21 for write, 0x23 otherwise)
*
* Switch the DPLL clock on the HPT3xxN devices. This is a right mess.
- * NOTE: avoid touching the disabled primary channel on HPT371N -- it
- * doesn't physically exist anyway...
*/
static void hpt3xxn_set_clock(ide_hwif_t *hwif, u8 mode)
{
- u8 mcr1, scr2 = hwif->INB(hwif->dma_master + 0x7b);
+ u8 scr2 = hwif->INB(hwif->dma_master + 0x7b);
if ((scr2 & 0x7f) == mode)
return;
- /* MISC. control register 1 has the channel enable bit... */
- mcr1 = hwif->INB(hwif->dma_master + 0x70);
-
/* Tristate the bus */
- if (mcr1 & 0x04)
- hwif->OUTB(0x80, hwif->dma_master + 0x73);
+ hwif->OUTB(0x80, hwif->dma_master + 0x73);
hwif->OUTB(0x80, hwif->dma_master + 0x77);
/* Switch clock and reset channels */
hwif->OUTB(mode, hwif->dma_master + 0x7b);
hwif->OUTB(0xc0, hwif->dma_master + 0x79);
- /* Reset state machines */
- if (mcr1 & 0x04)
- hwif->OUTB(0x37, hwif->dma_master + 0x70);
- hwif->OUTB(0x37, hwif->dma_master + 0x74);
+ /*
+ * Reset the state machines.
+ * NOTE: avoid accidentally enabling the disabled channels.
+ */
+ hwif->OUTB(hwif->INB(hwif->dma_master + 0x70) | 0x32,
+ hwif->dma_master + 0x70);
+ hwif->OUTB(hwif->INB(hwif->dma_master + 0x74) | 0x32,
+ hwif->dma_master + 0x74);
/* Complete reset */
hwif->OUTB(0x00, hwif->dma_master + 0x79);
/* Reconnect channels to bus */
- if (mcr1 & 0x04)
- hwif->OUTB(0x00, hwif->dma_master + 0x73);
+ hwif->OUTB(0x00, hwif->dma_master + 0x73);
hwif->OUTB(0x00, hwif->dma_master + 0x77);
}
static void hpt3xxn_rw_disk(ide_drive_t *drive, struct request *rq)
{
- ide_hwif_t *hwif = HWIF(drive);
- u8 wantclock = rq_data_dir(rq) ? 0x23 : 0x21;
-
- hpt3xxn_set_clock(hwif, wantclock);
+ hpt3xxn_set_clock(HWIF(drive), rq_data_dir(rq) ? 0x23 : 0x21);
}
/*
* Set/get power state for a drive.
+ * NOTE: affects both drives on each channel.
*
* When we turn the power back on, we need to re-initialize things.
*/
static int hpt3xx_busproc(ide_drive_t *drive, int state)
{
- ide_hwif_t *hwif = drive->hwif;
+ ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = hwif->pci_dev;
- u8 tristate, resetmask, bus_reg = 0;
- u16 tri_reg = 0;
+ u8 mcr_addr = hwif->select_data + 2;
+ u8 resetmask = hwif->channel ? 0x80 : 0x40;
+ u8 bsr2 = 0;
+ u16 mcr = 0;
hwif->bus_state = state;
- if (hwif->channel) {
- /* secondary channel */
- tristate = 0x56;
- resetmask = 0x80;
- } else {
- /* primary channel */
- tristate = 0x52;
- resetmask = 0x40;
- }
-
/* Grab the status. */
- pci_read_config_word(dev, tristate, &tri_reg);
- pci_read_config_byte(dev, 0x59, &bus_reg);
+ pci_read_config_word(dev, mcr_addr, &mcr);
+ pci_read_config_byte(dev, 0x59, &bsr2);
/*
* Set the state. We don't set it if we don't need to do so.
*/
switch (state) {
case BUSSTATE_ON:
- if (!(bus_reg & resetmask))
+ if (!(bsr2 & resetmask))
return 0;
hwif->drives[0].failures = hwif->drives[1].failures = 0;
- pci_write_config_byte(dev, 0x59, bus_reg & ~resetmask);
- pci_write_config_word(dev, tristate, tri_reg & ~TRISTATE_BIT);
+ pci_write_config_byte(dev, 0x59, bsr2 & ~resetmask);
+ pci_write_config_word(dev, mcr_addr, mcr & ~TRISTATE_BIT);
return 0;
case BUSSTATE_OFF:
- if ((bus_reg & resetmask) && !(tri_reg & TRISTATE_BIT))
+ if ((bsr2 & resetmask) && !(mcr & TRISTATE_BIT))
return 0;
- tri_reg &= ~TRISTATE_BIT;
+ mcr &= ~TRISTATE_BIT;
break;
case BUSSTATE_TRISTATE:
- if ((bus_reg & resetmask) && (tri_reg & TRISTATE_BIT))
+ if ((bsr2 & resetmask) && (mcr & TRISTATE_BIT))
return 0;
- tri_reg |= TRISTATE_BIT;
+ mcr |= TRISTATE_BIT;
break;
default:
return -EINVAL;
hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
- pci_write_config_word(dev, tristate, tri_reg);
- pci_write_config_byte(dev, 0x59, bus_reg | resetmask);
+ pci_write_config_word(dev, mcr_addr, mcr);
+ pci_write_config_byte(dev, 0x59, bsr2 | resetmask);
return 0;
}
-static void __devinit hpt366_clocking(ide_hwif_t *hwif)
+/**
+ * hpt37x_calibrate_dpll - calibrate the DPLL
+ * @dev: PCI device
+ *
+ * Perform a calibration cycle on the DPLL.
+ * Returns 1 if this succeeds
+ */
+static int __devinit hpt37x_calibrate_dpll(struct pci_dev *dev, u16 f_low, u16 f_high)
{
- u32 reg1 = 0;
- struct hpt_info *info = ide_get_hwifdata(hwif);
+ u32 dpll = (f_high << 16) | f_low | 0x100;
+ u8 scr2;
+ int i;
- pci_read_config_dword(hwif->pci_dev, 0x40, ®1);
+ pci_write_config_dword(dev, 0x5c, dpll);
- /* detect bus speed by looking at control reg timing: */
- switch((reg1 >> 8) & 7) {
- case 5:
- info->speed = forty_base_hpt36x;
- break;
- case 9:
- info->speed = twenty_five_base_hpt36x;
- break;
- case 7:
- default:
- info->speed = thirty_three_base_hpt36x;
+ /* Wait for oscillator ready */
+ for(i = 0; i < 0x5000; ++i) {
+ udelay(50);
+ pci_read_config_byte(dev, 0x5b, &scr2);
+ if (scr2 & 0x80)
break;
}
+ /* See if it stays ready (we'll just bail out if it's not yet) */
+ for(i = 0; i < 0x1000; ++i) {
+ pci_read_config_byte(dev, 0x5b, &scr2);
+ /* DPLL destabilized? */
+ if(!(scr2 & 0x80))
+ return 0;
+ }
+ /* Turn off tuning, we have the DPLL set */
+ pci_read_config_dword (dev, 0x5c, &dpll);
+ pci_write_config_dword(dev, 0x5c, (dpll & ~0x100));
+ return 1;
}
-static void __devinit hpt37x_clocking(ide_hwif_t *hwif)
+static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const char *name)
{
- struct hpt_info *info = ide_get_hwifdata(hwif);
- struct pci_dev *dev = hwif->pci_dev;
- int adjust, i;
- u16 freq = 0;
- u32 pll, temp = 0;
- u8 reg5bh = 0, mcr1 = 0;
-
+ struct hpt_info *info = kmalloc(sizeof(struct hpt_info), GFP_KERNEL);
+ unsigned long io_base = pci_resource_start(dev, 4);
+ u8 pci_clk, dpll_clk = 0; /* PCI and DPLL clock in MHz */
+ enum ata_clock clock;
+
+ if (info == NULL) {
+ printk(KERN_ERR "%s: out of memory!\n", name);
+ return -ENOMEM;
+ }
+
/*
- * default to pci clock. make sure MA15/16 are set to output
- * to prevent drives having problems with 40-pin cables. Needed
- * for some drives such as IBM-DTLA which will not enter ready
- * state on reset when PDIAG is a input.
- *
- * ToDo: should we set 0x21 when using PLL mode ?
+ * Copy everything from a static "template" structure
+ * to just allocated per-chip hpt_info structure.
*/
- pci_write_config_byte(dev, 0x5b, 0x23);
+ *info = *(struct hpt_info *)pci_get_drvdata(dev);
/*
- * We'll have to read f_CNT value in order to determine
- * the PCI clock frequency according to the following ratio:
- *
- * f_CNT = Fpci * 192 / Fdpll
- *
- * First try reading the register in which the HighPoint BIOS
- * saves f_CNT value before reprogramming the DPLL from its
- * default setting (which differs for the various chips).
- * NOTE: This register is only accessible via I/O space.
- *
- * In case the signature check fails, we'll have to resort to
- * reading the f_CNT register itself in hopes that nobody has
- * touched the DPLL yet...
+ * FIXME: Not portable. Also, why do we enable the ROM in the first place?
+ * We don't seem to be using it.
*/
- temp = inl(pci_resource_start(dev, 4) + 0x90);
- if ((temp & 0xFFFFF000) != 0xABCDE000) {
- printk(KERN_WARNING "HPT37X: no clock data saved by BIOS\n");
-
- /* Calculate the average value of f_CNT */
- for (temp = i = 0; i < 128; i++) {
- pci_read_config_word(dev, 0x78, &freq);
- temp += freq & 0x1ff;
- mdelay(1);
- }
- freq = temp / 128;
- } else
- freq = temp & 0x1ff;
+ if (dev->resource[PCI_ROM_RESOURCE].start)
+ pci_write_config_dword(dev, PCI_ROM_ADDRESS,
+ dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
+
+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
+ pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
+ pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
/*
- * HPT3xxN chips use different PCI clock information.
- * Currently we always set up the PLL for them.
+ * First, try to estimate the PCI clock frequency...
*/
+ if (info->chip_type >= HPT370) {
+ u8 scr1 = 0;
+ u16 f_cnt = 0;
+ u32 temp = 0;
- if (info->flags & IS_3xxN) {
- if(freq < 0x55)
- pll = F_LOW_PCI_33;
- else if(freq < 0x70)
- pll = F_LOW_PCI_40;
- else if(freq < 0x7F)
- pll = F_LOW_PCI_50;
- else
- pll = F_LOW_PCI_66;
+ /* Interrupt force enable. */
+ pci_read_config_byte(dev, 0x5a, &scr1);
+ if (scr1 & 0x10)
+ pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
- printk(KERN_INFO "HPT3xxN detected, FREQ: %d, PLL: %d\n", freq, pll);
- }
- else
- {
- if(freq < 0x9C)
- pll = F_LOW_PCI_33;
- else if(freq < 0xb0)
- pll = F_LOW_PCI_40;
- else if(freq <0xc8)
- pll = F_LOW_PCI_50;
+ /*
+ * HighPoint does this for HPT372A.
+ * NOTE: This register is only writeable via I/O space.
+ */
+ if (info->chip_type == HPT372A)
+ outb(0x0e, io_base + 0x9c);
+
+ /*
+ * Default to PCI clock. Make sure MA15/16 are set to output
+ * to prevent drives having problems with 40-pin cables.
+ */
+ pci_write_config_byte(dev, 0x5b, 0x23);
+
+ /*
+ * We'll have to read f_CNT value in order to determine
+ * the PCI clock frequency according to the following ratio:
+ *
+ * f_CNT = Fpci * 192 / Fdpll
+ *
+ * First try reading the register in which the HighPoint BIOS
+ * saves f_CNT value before reprogramming the DPLL from its
+ * default setting (which differs for the various chips).
+ * NOTE: This register is only accessible via I/O space.
+ *
+ * In case the signature check fails, we'll have to resort to
+ * reading the f_CNT register itself in hopes that nobody has
+ * touched the DPLL yet...
+ */
+ temp = inl(io_base + 0x90);
+ if ((temp & 0xFFFFF000) != 0xABCDE000) {
+ int i;
+
+ printk(KERN_WARNING "%s: no clock data saved by BIOS\n",
+ name);
+
+ /* Calculate the average value of f_CNT. */
+ for (temp = i = 0; i < 128; i++) {
+ pci_read_config_word(dev, 0x78, &f_cnt);
+ temp += f_cnt & 0x1ff;
+ mdelay(1);
+ }
+ f_cnt = temp / 128;
+ } else
+ f_cnt = temp & 0x1ff;
+
+ dpll_clk = info->dpll_clk;
+ pci_clk = (f_cnt * dpll_clk) / 192;
+
+ /* Clamp PCI clock to bands. */
+ if (pci_clk < 40)
+ pci_clk = 33;
+ else if(pci_clk < 45)
+ pci_clk = 40;
+ else if(pci_clk < 55)
+ pci_clk = 50;
else
- pll = F_LOW_PCI_66;
-
- if (pll == F_LOW_PCI_33) {
- info->speed = thirty_three_base_hpt37x;
- printk(KERN_DEBUG "HPT37X: using 33MHz PCI clock\n");
- } else if (pll == F_LOW_PCI_40) {
- /* Unsupported */
- } else if (pll == F_LOW_PCI_50) {
- info->speed = fifty_base_hpt37x;
- printk(KERN_DEBUG "HPT37X: using 50MHz PCI clock\n");
- } else {
- info->speed = sixty_six_base_hpt37x;
- printk(KERN_DEBUG "HPT37X: using 66MHz PCI clock\n");
+ pci_clk = 66;
+
+ printk(KERN_INFO "%s: DPLL base: %d MHz, f_CNT: %d, "
+ "assuming %d MHz PCI\n", name, dpll_clk, f_cnt, pci_clk);
+ } else {
+ u32 itr1 = 0;
+
+ pci_read_config_dword(dev, 0x40, &itr1);
+
+ /* Detect PCI clock by looking at cmd_high_time. */
+ switch((itr1 >> 8) & 0x07) {
+ case 0x09:
+ pci_clk = 40;
+ break;
+ case 0x05:
+ pci_clk = 25;
+ break;
+ case 0x07:
+ default:
+ pci_clk = 33;
+ break;
}
}
- if (pll == F_LOW_PCI_66)
- info->flags |= PCI_66MHZ;
+ /* Let's assume we'll use PCI clock for the ATA clock... */
+ switch (pci_clk) {
+ case 25:
+ clock = ATA_CLOCK_25MHZ;
+ break;
+ case 33:
+ default:
+ clock = ATA_CLOCK_33MHZ;
+ break;
+ case 40:
+ clock = ATA_CLOCK_40MHZ;
+ break;
+ case 50:
+ clock = ATA_CLOCK_50MHZ;
+ break;
+ case 66:
+ clock = ATA_CLOCK_66MHZ;
+ break;
+ }
/*
- * only try the pll if we don't have a table for the clock
- * speed that we're running at. NOTE: the internal PLL will
- * result in slow reads when using a 33MHz PCI clock. we also
- * don't like to use the PLL because it will cause glitches
- * on PRST/SRST when the HPT state engine gets reset.
+ * Only try the DPLL if we don't have a table for the PCI clock that
+ * we are running at for HPT370/A, always use it for anything newer...
*
- * ToDo: Use 66MHz PLL when ATA133 devices are present on a
- * 372 device so we can get ATA133 support
+ * NOTE: Using the internal DPLL results in slow reads on 33 MHz PCI.
+ * We also don't like using the DPLL because this causes glitches
+ * on PRST-/SRST- when the state engine gets reset...
*/
- if (info->speed)
- goto init_hpt37X_done;
+ if (info->chip_type >= HPT374 || info->settings[clock] == NULL) {
+ u16 f_low, delta = pci_clk < 50 ? 2 : 4;
+ int adjust;
+
+ /*
+ * Select 66 MHz DPLL clock only if UltraATA/133 mode is
+ * supported/enabled, use 50 MHz DPLL clock otherwise...
+ */
+ if (info->max_mode == 0x04) {
+ dpll_clk = 66;
+ clock = ATA_CLOCK_66MHZ;
+ } else if (dpll_clk) { /* HPT36x chips don't have DPLL */
+ dpll_clk = 50;
+ clock = ATA_CLOCK_50MHZ;
+ }
- info->flags |= PLL_MODE;
-
- /*
- * Adjust the PLL based upon the PCI clock, enable it, and
- * wait for stabilization...
- */
- adjust = 0;
- freq = (pll < F_LOW_PCI_50) ? 2 : 4;
- while (adjust++ < 6) {
- pci_write_config_dword(dev, 0x5c, (freq + pll) << 16 |
- pll | 0x100);
-
- /* wait for clock stabilization */
- for (i = 0; i < 0x50000; i++) {
- pci_read_config_byte(dev, 0x5b, ®5bh);
- if (reg5bh & 0x80) {
- /* spin looking for the clock to destabilize */
- for (i = 0; i < 0x1000; ++i) {
- pci_read_config_byte(dev, 0x5b,
- ®5bh);
- if ((reg5bh & 0x80) == 0)
- goto pll_recal;
- }
- pci_read_config_dword(dev, 0x5c, &pll);
- pci_write_config_dword(dev, 0x5c,
- pll & ~0x100);
- pci_write_config_byte(dev, 0x5b, 0x21);
-
- info->speed = fifty_base_hpt37x;
- printk("HPT37X: using 50MHz internal PLL\n");
- goto init_hpt37X_done;
- }
+ if (info->settings[clock] == NULL) {
+ printk(KERN_ERR "%s: unknown bus timing!\n", name);
+ kfree(info);
+ return -EIO;
}
-pll_recal:
- if (adjust & 1)
- pll -= (adjust >> 1);
- else
- pll += (adjust >> 1);
- }
-init_hpt37X_done:
- if (!info->speed)
- printk(KERN_ERR "HPT37x%s: unknown bus timing [%d %d].\n",
- (info->flags & IS_3xxN) ? "N" : "", pll, freq);
- /*
- * Reset the state engines.
- * NOTE: avoid accidentally enabling the primary channel on HPT371N.
- */
- pci_read_config_byte(dev, 0x50, &mcr1);
- if (mcr1 & 0x04)
- pci_write_config_byte(dev, 0x50, 0x37);
- pci_write_config_byte(dev, 0x54, 0x37);
- udelay(100);
-}
+ /* Select the DPLL clock. */
+ pci_write_config_byte(dev, 0x5b, 0x21);
-static int __devinit init_hpt37x(struct pci_dev *dev)
-{
- u8 reg5ah;
+ /*
+ * Adjust the DPLL based upon PCI clock, enable it,
+ * and wait for stabilization...
+ */
+ f_low = (pci_clk * 48) / dpll_clk;
- pci_read_config_byte(dev, 0x5a, ®5ah);
- /* interrupt force enable */
- pci_write_config_byte(dev, 0x5a, (reg5ah & ~0x10));
- return 0;
-}
+ for (adjust = 0; adjust < 8; adjust++) {
+ if(hpt37x_calibrate_dpll(dev, f_low, f_low + delta))
+ break;
-static int __devinit init_hpt366(struct pci_dev *dev)
-{
- u32 reg1 = 0;
- u8 drive_fast = 0;
+ /*
+ * See if it'll settle at a fractionally different clock
+ */
+ if (adjust & 1)
+ f_low -= adjust >> 1;
+ else
+ f_low += adjust >> 1;
+ }
+ if (adjust == 8) {
+ printk(KERN_ERR "%s: DPLL did not stabilize!\n", name);
+ kfree(info);
+ return -EIO;
+ }
- /*
- * Disable the "fast interrupt" prediction.
- */
- pci_read_config_byte(dev, 0x51, &drive_fast);
- if (drive_fast & 0x80)
- pci_write_config_byte(dev, 0x51, drive_fast & ~0x80);
- pci_read_config_dword(dev, 0x40, ®1);
-
- return 0;
-}
+ printk("%s: using %d MHz DPLL clock\n", name, dpll_clk);
+ } else {
+ /* Mark the fact that we're not using the DPLL. */
+ dpll_clk = 0;
-static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const char *name)
-{
- int ret = 0;
+ printk("%s: using %d MHz PCI clock\n", name, pci_clk);
+ }
/*
- * FIXME: Not portable. Also, why do we enable the ROM in the first place?
- * We don't seem to be using it.
+ * Advance the table pointer to a slot which points to the list
+ * of the register values settings matching the clock being used.
*/
- if (dev->resource[PCI_ROM_RESOURCE].start)
- pci_write_config_dword(dev, PCI_ROM_ADDRESS,
- dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
+ info->settings += clock;
- pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
- pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
- pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
- pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
+ /* Store the clock frequencies. */
+ info->dpll_clk = dpll_clk;
+ info->pci_clk = pci_clk;
- if (hpt_revision(dev) >= 3)
- ret = init_hpt37x(dev);
- else
- ret = init_hpt366(dev);
+ /* Point to this chip's own instance of the hpt_info structure. */
+ pci_set_drvdata(dev, info);
- if (ret)
- return ret;
+ if (info->chip_type >= HPT370) {
+ u8 mcr1, mcr4;
+
+ /*
+ * Reset the state engines.
+ * NOTE: Avoid accidentally enabling the disabled channels.
+ */
+ pci_read_config_byte (dev, 0x50, &mcr1);
+ pci_read_config_byte (dev, 0x54, &mcr4);
+ pci_write_config_byte(dev, 0x50, (mcr1 | 0x32));
+ pci_write_config_byte(dev, 0x54, (mcr4 | 0x32));
+ udelay(100);
+ }
+
+ /*
+ * On HPT371N, if ATA clock is 66 MHz we must set bit 2 in
+ * the MISC. register to stretch the UltraDMA Tss timing.
+ * NOTE: This register is only writeable via I/O space.
+ */
+ if (info->chip_type == HPT371N && clock == ATA_CLOCK_66MHZ)
+
+ outb(inb(io_base + 0x9c) | 0x04, io_base + 0x9c);
return dev->irq;
}
static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
{
- struct pci_dev *dev = hwif->pci_dev;
- struct hpt_info *info = ide_get_hwifdata(hwif);
- u8 ata66 = 0, regmask = (hwif->channel) ? 0x01 : 0x02;
+ struct pci_dev *dev = hwif->pci_dev;
+ struct hpt_info *info = pci_get_drvdata(dev);
int serialize = HPT_SERIALIZE_IO;
-
+ u8 scr1 = 0, ata66 = (hwif->channel) ? 0x01 : 0x02;
+ u8 chip_type = info->chip_type;
+ u8 new_mcr, old_mcr = 0;
+
+ /* Cache the channel's MISC. control registers' offset */
+ hwif->select_data = hwif->channel ? 0x54 : 0x50;
+
hwif->tuneproc = &hpt3xx_tune_drive;
hwif->speedproc = &hpt3xx_tune_chipset;
hwif->quirkproc = &hpt3xx_quirkproc;
hwif->intrproc = &hpt3xx_intrproc;
hwif->maskproc = &hpt3xx_maskproc;
-
+ hwif->busproc = &hpt3xx_busproc;
+
/*
* HPT3xxN chips have some complications:
*
* - on 33 MHz PCI we must clock switch
* - on 66 MHz PCI we must NOT use the PCI clock
*/
- if ((info->flags & (IS_3xxN | PCI_66MHZ)) == IS_3xxN) {
+ if (chip_type >= HPT372N && info->dpll_clk && info->pci_clk < 66) {
/*
* Clock is shared between the channels,
* so we'll have to serialize them... :-(
hwif->rw_disk = &hpt3xxn_rw_disk;
}
+ /* Serialize access to this device if needed */
+ if (serialize && hwif->mate)
+ hwif->serialized = hwif->mate->serialized = 1;
+
+ /*
+ * Disable the "fast interrupt" prediction. Don't hold off
+ * on interrupts. (== 0x01 despite what the docs say)
+ */
+ pci_read_config_byte(dev, hwif->select_data + 1, &old_mcr);
+
+ if (info->chip_type >= HPT374)
+ new_mcr = old_mcr & ~0x07;
+ else if (info->chip_type >= HPT370) {
+ new_mcr = old_mcr;
+ new_mcr &= ~0x02;
+
+#ifdef HPT_DELAY_INTERRUPT
+ new_mcr &= ~0x01;
+#else
+ new_mcr |= 0x01;
+#endif
+ } else /* HPT366 and HPT368 */
+ new_mcr = old_mcr & ~0x80;
+
+ if (new_mcr != old_mcr)
+ pci_write_config_byte(dev, hwif->select_data + 1, new_mcr);
+
+ if (!hwif->dma_base) {
+ hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
+ return;
+ }
+
+ hwif->ultra_mask = 0x7f;
+ hwif->mwdma_mask = 0x07;
+
/*
* The HPT37x uses the CBLID pins as outputs for MA15/MA16
- * address lines to access an external eeprom. To read valid
+ * address lines to access an external EEPROM. To read valid
* cable detect state the pins must be enabled as inputs.
*/
- if (info->revision >= 8 && (PCI_FUNC(dev->devfn) & 1)) {
+ if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
/*
* HPT374 PCI function 1
* - set bit 15 of reg 0x52 to enable TCBLID as input
* - set bit 15 of reg 0x56 to enable FCBLID as input
*/
- u16 mcr3, mcr6;
- pci_read_config_word(dev, 0x52, &mcr3);
- pci_read_config_word(dev, 0x56, &mcr6);
- pci_write_config_word(dev, 0x52, mcr3 | 0x8000);
- pci_write_config_word(dev, 0x56, mcr6 | 0x8000);
+ u8 mcr_addr = hwif->select_data + 2;
+ u16 mcr;
+
+ pci_read_config_word (dev, mcr_addr, &mcr);
+ pci_write_config_word(dev, mcr_addr, (mcr | 0x8000));
/* now read cable id register */
- pci_read_config_byte(dev, 0x5a, &ata66);
- pci_write_config_word(dev, 0x52, mcr3);
- pci_write_config_word(dev, 0x56, mcr6);
- } else if (info->revision >= 3) {
+ pci_read_config_byte (dev, 0x5a, &scr1);
+ pci_write_config_word(dev, mcr_addr, mcr);
+ } else if (chip_type >= HPT370) {
/*
* HPT370/372 and 374 pcifn 0
- * - clear bit 0 of 0x5b to enable P/SCBLID as inputs
+ * - clear bit 0 of reg 0x5b to enable P/SCBLID as inputs
*/
- u8 scr2;
- pci_read_config_byte(dev, 0x5b, &scr2);
- pci_write_config_byte(dev, 0x5b, scr2 & ~1);
- /* now read cable id register */
- pci_read_config_byte(dev, 0x5a, &ata66);
- pci_write_config_byte(dev, 0x5b, scr2);
- } else {
- pci_read_config_byte(dev, 0x5a, &ata66);
- }
+ u8 scr2 = 0;
-#ifdef DEBUG
- printk("HPT366: reg5ah=0x%02x ATA-%s Cable Port%d\n",
- ata66, (ata66 & regmask) ? "33" : "66",
- PCI_FUNC(hwif->pci_dev->devfn));
-#endif /* DEBUG */
-
- /* Serialize access to this device */
- if (serialize && hwif->mate)
- hwif->serialized = hwif->mate->serialized = 1;
+ pci_read_config_byte (dev, 0x5b, &scr2);
+ pci_write_config_byte(dev, 0x5b, (scr2 & ~1));
+ /* now read cable id register */
+ pci_read_config_byte (dev, 0x5a, &scr1);
+ pci_write_config_byte(dev, 0x5b, scr2);
+ } else
+ pci_read_config_byte (dev, 0x5a, &scr1);
- /*
- * Set up ioctl for power status.
- * NOTE: power affects both drives on each channel.
- */
- hwif->busproc = &hpt3xx_busproc;
+ if (!hwif->udma_four)
+ hwif->udma_four = (scr1 & ata66) ? 0 : 1;
- if (!hwif->dma_base) {
- hwif->drives[0].autotune = 1;
- hwif->drives[1].autotune = 1;
- return;
- }
+ hwif->ide_dma_check = &hpt366_config_drive_xfer_rate;
- hwif->ultra_mask = 0x7f;
- hwif->mwdma_mask = 0x07;
-
- if (!(hwif->udma_four))
- hwif->udma_four = ((ata66 & regmask) ? 0 : 1);
- hwif->ide_dma_check = &hpt366_config_drive_xfer_rate;
-
- if (info->revision >= 8) {
- hwif->ide_dma_test_irq = &hpt374_ide_dma_test_irq;
- hwif->ide_dma_end = &hpt374_ide_dma_end;
- } else if (info->revision >= 5) {
- hwif->ide_dma_test_irq = &hpt374_ide_dma_test_irq;
- hwif->ide_dma_end = &hpt374_ide_dma_end;
- } else if (info->revision >= 3) {
- hwif->dma_start = &hpt370_ide_dma_start;
- hwif->ide_dma_end = &hpt370_ide_dma_end;
- hwif->ide_dma_timeout = &hpt370_ide_dma_timeout;
- hwif->ide_dma_lostirq = &hpt370_ide_dma_lostirq;
- } else if (info->revision >= 2)
- hwif->ide_dma_lostirq = &hpt366_ide_dma_lostirq;
- else
- hwif->ide_dma_lostirq = &hpt366_ide_dma_lostirq;
+ if (chip_type >= HPT374) {
+ hwif->ide_dma_test_irq = &hpt374_ide_dma_test_irq;
+ hwif->ide_dma_end = &hpt374_ide_dma_end;
+ } else if (chip_type >= HPT370) {
+ hwif->dma_start = &hpt370_ide_dma_start;
+ hwif->ide_dma_end = &hpt370_ide_dma_end;
+ hwif->ide_dma_timeout = &hpt370_ide_dma_timeout;
+ } else
+ hwif->ide_dma_lostirq = &hpt366_ide_dma_lostirq;
if (!noautodma)
hwif->autodma = 1;
- hwif->drives[0].autodma = hwif->autodma;
- hwif->drives[1].autodma = hwif->autodma;
+ hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
}
static void __devinit init_dma_hpt366(ide_hwif_t *hwif, unsigned long dmabase)
{
- struct hpt_info *info = ide_get_hwifdata(hwif);
- u8 masterdma = 0, slavedma = 0;
- u8 dma_new = 0, dma_old = 0;
- u8 primary = hwif->channel ? 0x4b : 0x43;
- u8 secondary = hwif->channel ? 0x4f : 0x47;
+ struct pci_dev *dev = hwif->pci_dev;
+ u8 masterdma = 0, slavedma = 0;
+ u8 dma_new = 0, dma_old = 0;
unsigned long flags;
if (!dmabase)
return;
- if(info->speed == NULL) {
- printk(KERN_WARNING "hpt366: no known IDE timings, disabling DMA.\n");
- return;
- }
-
- dma_old = hwif->INB(dmabase+2);
+ dma_old = hwif->INB(dmabase + 2);
local_irq_save(flags);
dma_new = dma_old;
- pci_read_config_byte(hwif->pci_dev, primary, &masterdma);
- pci_read_config_byte(hwif->pci_dev, secondary, &slavedma);
+ pci_read_config_byte(dev, hwif->channel ? 0x4b : 0x43, &masterdma);
+ pci_read_config_byte(dev, hwif->channel ? 0x4f : 0x47, &slavedma);
if (masterdma & 0x30) dma_new |= 0x20;
- if (slavedma & 0x30) dma_new |= 0x40;
+ if ( slavedma & 0x30) dma_new |= 0x40;
if (dma_new != dma_old)
- hwif->OUTB(dma_new, dmabase+2);
+ hwif->OUTB(dma_new, dmabase + 2);
local_irq_restore(flags);
ide_setup_dma(hwif, dmabase, 8);
}
-/*
- * We "borrow" this hook in order to set the data structures
- * up early enough before dma or init_hwif calls are made.
- */
-
-static void __devinit init_iops_hpt366(ide_hwif_t *hwif)
-{
- struct hpt_info *info = kzalloc(sizeof(struct hpt_info), GFP_KERNEL);
- struct pci_dev *dev = hwif->pci_dev;
- u16 did = dev->device;
- u8 rid = 0;
-
- if(info == NULL) {
- printk(KERN_WARNING "hpt366: out of memory.\n");
- return;
- }
- ide_set_hwifdata(hwif, info);
-
- /* Avoid doing the same thing twice. */
- if (hwif->channel && hwif->mate) {
- memcpy(info, ide_get_hwifdata(hwif->mate), sizeof(struct hpt_info));
- return;
- }
-
- pci_read_config_byte(dev, PCI_CLASS_REVISION, &rid);
-
- if (( did == PCI_DEVICE_ID_TTI_HPT366 && rid == 6) ||
- ((did == PCI_DEVICE_ID_TTI_HPT372 ||
- did == PCI_DEVICE_ID_TTI_HPT302 ||
- did == PCI_DEVICE_ID_TTI_HPT371) && rid > 1) ||
- did == PCI_DEVICE_ID_TTI_HPT372N)
- info->flags |= IS_3xxN;
-
- info->revision = hpt_revision(dev);
-
- if (info->revision >= 3)
- hpt37x_clocking(hwif);
- else
- hpt366_clocking(hwif);
-}
-
static int __devinit init_setup_hpt374(struct pci_dev *dev, ide_pci_device_t *d)
{
- struct pci_dev *findev = NULL;
+ struct pci_dev *dev2;
if (PCI_FUNC(dev->devfn) & 1)
return -ENODEV;
- while ((findev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
- if ((findev->vendor == dev->vendor) &&
- (findev->device == dev->device) &&
- ((findev->devfn - dev->devfn) == 1) &&
- (PCI_FUNC(findev->devfn) & 1)) {
- if (findev->irq != dev->irq) {
- /* FIXME: we need a core pci_set_interrupt() */
- findev->irq = dev->irq;
- printk(KERN_WARNING "%s: pci-config space interrupt "
- "fixed.\n", d->name);
- }
- return ide_setup_pci_devices(dev, findev, d);
+ pci_set_drvdata(dev, &hpt374);
+
+ if ((dev2 = pci_get_slot(dev->bus, dev->devfn + 1)) != NULL) {
+ int ret;
+
+ pci_set_drvdata(dev2, &hpt374);
+
+ if (dev2->irq != dev->irq) {
+ /* FIXME: we need a core pci_set_interrupt() */
+ dev2->irq = dev->irq;
+ printk(KERN_WARNING "%s: PCI config space interrupt "
+ "fixed.\n", d->name);
}
+ ret = ide_setup_pci_devices(dev, dev2, d);
+ if (ret < 0)
+ pci_dev_put(dev2);
+ return ret;
}
return ide_setup_pci_device(dev, d);
}
-static int __devinit init_setup_hpt37x(struct pci_dev *dev, ide_pci_device_t *d)
+static int __devinit init_setup_hpt372n(struct pci_dev *dev, ide_pci_device_t *d)
{
+ pci_set_drvdata(dev, &hpt372n);
+
return ide_setup_pci_device(dev, d);
}
static int __devinit init_setup_hpt371(struct pci_dev *dev, ide_pci_device_t *d)
{
- u8 mcr1 = 0;
+ struct hpt_info *info;
+ u8 rev = 0, mcr1 = 0;
+
+ pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
+
+ if (rev > 1) {
+ d->name = "HPT371N";
+
+ info = &hpt371n;
+ } else
+ info = &hpt371;
/*
* HPT371 chips physically have only one channel, the secondary one,
*/
pci_read_config_byte(dev, 0x50, &mcr1);
if (mcr1 & 0x04)
- pci_write_config_byte(dev, 0x50, (mcr1 & ~0x04));
+ pci_write_config_byte(dev, 0x50, mcr1 & ~0x04);
+
+ pci_set_drvdata(dev, info);
+
+ return ide_setup_pci_device(dev, d);
+}
+
+static int __devinit init_setup_hpt372a(struct pci_dev *dev, ide_pci_device_t *d)
+{
+ struct hpt_info *info;
+ u8 rev = 0;
+
+ pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
+
+ if (rev > 1) {
+ d->name = "HPT372N";
+
+ info = &hpt372n;
+ } else
+ info = &hpt372a;
+ pci_set_drvdata(dev, info);
+
+ return ide_setup_pci_device(dev, d);
+}
+
+static int __devinit init_setup_hpt302(struct pci_dev *dev, ide_pci_device_t *d)
+{
+ struct hpt_info *info;
+ u8 rev = 0;
+
+ pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
+
+ if (rev > 1) {
+ d->name = "HPT302N";
+
+ info = &hpt302n;
+ } else
+ info = &hpt302;
+ pci_set_drvdata(dev, info);
return ide_setup_pci_device(dev, d);
}
static int __devinit init_setup_hpt366(struct pci_dev *dev, ide_pci_device_t *d)
{
- struct pci_dev *findev = NULL;
- u8 pin1 = 0, pin2 = 0;
- unsigned int class_rev;
- char *chipset_names[] = {"HPT366", "HPT366", "HPT368",
- "HPT370", "HPT370A", "HPT372",
- "HPT372N" };
+ struct pci_dev *dev2;
+ u8 rev = 0;
+ static char *chipset_names[] = { "HPT366", "HPT366", "HPT368",
+ "HPT370", "HPT370A", "HPT372",
+ "HPT372N" };
+ static struct hpt_info *info[] = { &hpt36x, &hpt36x, &hpt36x,
+ &hpt370, &hpt370a, &hpt372,
+ &hpt372n };
if (PCI_FUNC(dev->devfn) & 1)
return -ENODEV;
- pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
- class_rev &= 0xff;
+ pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
- if(dev->device == PCI_DEVICE_ID_TTI_HPT372N)
- class_rev = 6;
+ if (rev > 6)
+ rev = 6;
- if(class_rev <= 6)
- d->name = chipset_names[class_rev];
-
- switch(class_rev) {
- case 6:
- case 5:
- case 4:
- case 3:
- goto init_single;
- default:
- break;
- }
+ d->name = chipset_names[rev];
+
+ pci_set_drvdata(dev, info[rev]);
+
+ if (rev > 2)
+ goto init_single;
d->channels = 1;
- pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin1);
- while ((findev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
- if ((findev->vendor == dev->vendor) &&
- (findev->device == dev->device) &&
- ((findev->devfn - dev->devfn) == 1) &&
- (PCI_FUNC(findev->devfn) & 1)) {
- pci_read_config_byte(findev, PCI_INTERRUPT_PIN, &pin2);
- if ((pin1 != pin2) && (dev->irq == findev->irq)) {
- d->bootable = ON_BOARD;
- printk("%s: onboard version of chipset, "
- "pin1=%d pin2=%d\n", d->name,
- pin1, pin2);
- }
- return ide_setup_pci_devices(dev, findev, d);
+ if ((dev2 = pci_get_slot(dev->bus, dev->devfn + 1)) != NULL) {
+ u8 pin1 = 0, pin2 = 0;
+ int ret;
+
+ pci_set_drvdata(dev2, info[rev]);
+
+ pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin1);
+ pci_read_config_byte(dev2, PCI_INTERRUPT_PIN, &pin2);
+ if (pin1 != pin2 && dev->irq == dev2->irq) {
+ d->bootable = ON_BOARD;
+ printk("%s: onboard version of chipset, pin1=%d pin2=%d\n",
+ d->name, pin1, pin2);
}
+ ret = ide_setup_pci_devices(dev, dev2, d);
+ if (ret < 0)
+ pci_dev_put(dev2);
+ return ret;
}
init_single:
return ide_setup_pci_device(dev, d);
.name = "HPT366",
.init_setup = init_setup_hpt366,
.init_chipset = init_chipset_hpt366,
- .init_iops = init_iops_hpt366,
.init_hwif = init_hwif_hpt366,
.init_dma = init_dma_hpt366,
.channels = 2,
.autodma = AUTODMA,
+ .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
.bootable = OFF_BOARD,
.extra = 240
},{ /* 1 */
.name = "HPT372A",
- .init_setup = init_setup_hpt37x,
+ .init_setup = init_setup_hpt372a,
.init_chipset = init_chipset_hpt366,
- .init_iops = init_iops_hpt366,
.init_hwif = init_hwif_hpt366,
.init_dma = init_dma_hpt366,
.channels = 2,
.autodma = AUTODMA,
+ .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
.bootable = OFF_BOARD,
+ .extra = 240
},{ /* 2 */
.name = "HPT302",
- .init_setup = init_setup_hpt37x,
+ .init_setup = init_setup_hpt302,
.init_chipset = init_chipset_hpt366,
- .init_iops = init_iops_hpt366,
.init_hwif = init_hwif_hpt366,
.init_dma = init_dma_hpt366,
.channels = 2,
.autodma = AUTODMA,
+ .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
.bootable = OFF_BOARD,
+ .extra = 240
},{ /* 3 */
.name = "HPT371",
.init_setup = init_setup_hpt371,
.init_chipset = init_chipset_hpt366,
- .init_iops = init_iops_hpt366,
.init_hwif = init_hwif_hpt366,
.init_dma = init_dma_hpt366,
.channels = 2,
.autodma = AUTODMA,
.enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
.bootable = OFF_BOARD,
+ .extra = 240
},{ /* 4 */
.name = "HPT374",
.init_setup = init_setup_hpt374,
.init_chipset = init_chipset_hpt366,
- .init_iops = init_iops_hpt366,
.init_hwif = init_hwif_hpt366,
.init_dma = init_dma_hpt366,
.channels = 2, /* 4 */
.autodma = AUTODMA,
+ .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
.bootable = OFF_BOARD,
+ .extra = 240
},{ /* 5 */
.name = "HPT372N",
- .init_setup = init_setup_hpt37x,
+ .init_setup = init_setup_hpt372n,
.init_chipset = init_chipset_hpt366,
- .init_iops = init_iops_hpt366,
.init_hwif = init_hwif_hpt366,
.init_dma = init_dma_hpt366,
.channels = 2, /* 4 */
.autodma = AUTODMA,
+ .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
.bootable = OFF_BOARD,
+ .extra = 240
}
};
projects / deliverable / linux.git / commitdiff
