/*
- * linux/drivers/ide/pci/hpt366.c Version 0.34 Sept 17, 2002
+ * linux/drivers/ide/pci/hpt366.c Version 0.36 April 25, 2003
*
* Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>
* Portions Copyright (C) 2001 Sun Microsystems, Inc.
+ * Portions Copyright (C) 2003 Red Hat Inc
+ * Portions Copyright (C) 2005-2006 MontaVista Software, Inc.
*
* Thanks to HighPoint Technologies for their assistance, and hardware.
* Special Thanks to Jon Burchmore in SanDiego for the deep pockets, his
* donation of an ABit BP6 mainboard, processor, and memory acellerated
* development and support.
*
+ *
+ * HighPoint has its own drivers (open source except for the RAID part)
+ * available from http://www.highpoint-tech.com/BIOS%20+%20Driver/.
+ * This may be useful to anyone wanting to work on this driver, however do not
+ * trust them too much since the code tends to become less and less meaningful
+ * as the time passes... :-/
+ *
* Note that final HPT370 support was done by force extraction of GPL.
*
* - add function for getting/setting power status of drive
* Reset the hpt366 on error, reset on dma
* Fix disabling Fast Interrupt hpt366.
* Mike Waychison <crlf@sun.com>
+ *
+ * Added support for 372N clocking and clock switching. The 372N needs
+ * different clocks on read/write. This requires overloading rw_disk and
+ * other deeply crazy things. Thanks to <http://www.hoerstreich.de> for
+ * keeping me sane.
+ * Alan Cox <alan@redhat.com>
+ *
+ * - fix the clock turnaround code: it was writing to the wrong ports when
+ * called for the secondary channel, caching the current clock mode per-
+ * 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)
+ * - 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
+ * - use f_CNT value saved by the HighPoint BIOS as reading it directly gives
+ * the wrong PCI frequency since DPLL has already been calibrated by BIOS
+ * - fix the hotswap code: it caused RESET- to glitch when tristating the bus,
+ * 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>
+ *
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <asm/io.h>
#include <asm/irq.h>
-#include "hpt366.h"
+/* various tuning parameters */
+#define HPT_RESET_STATE_ENGINE
+#undef HPT_DELAY_INTERRUPT
+#define HPT_SERIALIZE_IO 0
+
+static const char *quirk_drives[] = {
+ "QUANTUM FIREBALLlct08 08",
+ "QUANTUM FIREBALLP KA6.4",
+ "QUANTUM FIREBALLP LM20.4",
+ "QUANTUM FIREBALLP LM20.5",
+ NULL
+};
+
+static const char *bad_ata100_5[] = {
+ "IBM-DTLA-307075",
+ "IBM-DTLA-307060",
+ "IBM-DTLA-307045",
+ "IBM-DTLA-307030",
+ "IBM-DTLA-307020",
+ "IBM-DTLA-307015",
+ "IBM-DTLA-305040",
+ "IBM-DTLA-305030",
+ "IBM-DTLA-305020",
+ "IC35L010AVER07-0",
+ "IC35L020AVER07-0",
+ "IC35L030AVER07-0",
+ "IC35L040AVER07-0",
+ "IC35L060AVER07-0",
+ "WDC AC310200R",
+ NULL
+};
+
+static const char *bad_ata66_4[] = {
+ "IBM-DTLA-307075",
+ "IBM-DTLA-307060",
+ "IBM-DTLA-307045",
+ "IBM-DTLA-307030",
+ "IBM-DTLA-307020",
+ "IBM-DTLA-307015",
+ "IBM-DTLA-305040",
+ "IBM-DTLA-305030",
+ "IBM-DTLA-305020",
+ "IC35L010AVER07-0",
+ "IC35L020AVER07-0",
+ "IC35L030AVER07-0",
+ "IC35L040AVER07-0",
+ "IC35L060AVER07-0",
+ "WDC AC310200R",
+ NULL
+};
+
+static const char *bad_ata66_3[] = {
+ "WDC AC310200R",
+ NULL
+};
-#if defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS)
-#include <linux/stat.h>
-#include <linux/proc_fs.h>
-#endif /* defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS) */
+static const char *bad_ata33[] = {
+ "Maxtor 92720U8", "Maxtor 92040U6", "Maxtor 91360U4", "Maxtor 91020U3", "Maxtor 90845U3", "Maxtor 90650U2",
+ "Maxtor 91360D8", "Maxtor 91190D7", "Maxtor 91020D6", "Maxtor 90845D5", "Maxtor 90680D4", "Maxtor 90510D3", "Maxtor 90340D2",
+ "Maxtor 91152D8", "Maxtor 91008D7", "Maxtor 90845D6", "Maxtor 90840D6", "Maxtor 90720D5", "Maxtor 90648D5", "Maxtor 90576D4",
+ "Maxtor 90510D4",
+ "Maxtor 90432D3", "Maxtor 90288D2", "Maxtor 90256D2",
+ "Maxtor 91000D8", "Maxtor 90910D8", "Maxtor 90875D7", "Maxtor 90840D7", "Maxtor 90750D6", "Maxtor 90625D5", "Maxtor 90500D4",
+ "Maxtor 91728D8", "Maxtor 91512D7", "Maxtor 91303D6", "Maxtor 91080D5", "Maxtor 90845D4", "Maxtor 90680D4", "Maxtor 90648D3", "Maxtor 90432D2",
+ NULL
+};
-static unsigned int hpt_revision(struct pci_dev *dev);
-static unsigned int hpt_minimum_revision(struct pci_dev *dev, int revision);
+static u8 xfer_speeds[] = {
+ XFER_UDMA_6,
+ XFER_UDMA_5,
+ XFER_UDMA_4,
+ XFER_UDMA_3,
+ XFER_UDMA_2,
+ XFER_UDMA_1,
+ XFER_UDMA_0,
+
+ XFER_MW_DMA_2,
+ XFER_MW_DMA_1,
+ XFER_MW_DMA_0,
+
+ XFER_PIO_4,
+ XFER_PIO_3,
+ XFER_PIO_2,
+ XFER_PIO_1,
+ XFER_PIO_0
+};
-#if defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS)
+/* Key for bus clock timings
+ * 36x 37x
+ * bits bits
+ * 0:3 0:3 data_high_time. Inactive time of DIOW_/DIOR_ for PIO and MW DMA.
+ * cycles = value + 1
+ * 4:7 4:8 data_low_time. Active time of DIOW_/DIOR_ for PIO and MW DMA.
+ * cycles = value + 1
+ * 8:11 9:12 cmd_high_time. Inactive time of DIOW_/DIOR_ during task file
+ * register access.
+ * 12:15 13:17 cmd_low_time. Active time of DIOW_/DIOR_ during task file
+ * register access.
+ * 16:18 18:20 udma_cycle_time. Clock cycles for UDMA xfer.
+ * - 21 CLK frequency: 0=ATA clock, 1=dual ATA clock.
+ * 19:21 22:24 pre_high_time. Time to initialize the 1st cycle for PIO and
+ * MW DMA xfer.
+ * 22:24 25:27 cmd_pre_high_time. Time to initialize the 1st PIO cycle for
+ * task file register access.
+ * 28 28 UDMA enable.
+ * 29 29 DMA enable.
+ * 30 30 PIO MST enable. If set, the chip is in bus master mode during
+ * PIO xfer.
+ * 31 31 FIFO enable.
+ */
-static u8 hpt366_proc = 0;
-static struct pci_dev *hpt_devs[HPT366_MAX_DEVS];
-static int n_hpt_devs;
+static u32 forty_base_hpt36x[] = {
+ /* XFER_UDMA_6 */ 0x900fd943,
+ /* XFER_UDMA_5 */ 0x900fd943,
+ /* XFER_UDMA_4 */ 0x900fd943,
+ /* XFER_UDMA_3 */ 0x900ad943,
+ /* XFER_UDMA_2 */ 0x900bd943,
+ /* XFER_UDMA_1 */ 0x9008d943,
+ /* XFER_UDMA_0 */ 0x9008d943,
+
+ /* XFER_MW_DMA_2 */ 0xa008d943,
+ /* XFER_MW_DMA_1 */ 0xa010d955,
+ /* XFER_MW_DMA_0 */ 0xa010d9fc,
+
+ /* XFER_PIO_4 */ 0xc008d963,
+ /* XFER_PIO_3 */ 0xc010d974,
+ /* XFER_PIO_2 */ 0xc010d997,
+ /* XFER_PIO_1 */ 0xc010d9c7,
+ /* XFER_PIO_0 */ 0xc018d9d9
+};
-static int hpt366_get_info (char *buffer, char **addr, off_t offset, int count)
+static u32 thirty_three_base_hpt36x[] = {
+ /* XFER_UDMA_6 */ 0x90c9a731,
+ /* XFER_UDMA_5 */ 0x90c9a731,
+ /* XFER_UDMA_4 */ 0x90c9a731,
+ /* XFER_UDMA_3 */ 0x90cfa731,
+ /* XFER_UDMA_2 */ 0x90caa731,
+ /* XFER_UDMA_1 */ 0x90cba731,
+ /* XFER_UDMA_0 */ 0x90c8a731,
+
+ /* XFER_MW_DMA_2 */ 0xa0c8a731,
+ /* XFER_MW_DMA_1 */ 0xa0c8a732, /* 0xa0c8a733 */
+ /* XFER_MW_DMA_0 */ 0xa0c8a797,
+
+ /* XFER_PIO_4 */ 0xc0c8a731,
+ /* XFER_PIO_3 */ 0xc0c8a742,
+ /* XFER_PIO_2 */ 0xc0d0a753,
+ /* XFER_PIO_1 */ 0xc0d0a7a3, /* 0xc0d0a793 */
+ /* XFER_PIO_0 */ 0xc0d0a7aa /* 0xc0d0a7a7 */
+};
+
+static u32 twenty_five_base_hpt36x[] = {
+ /* XFER_UDMA_6 */ 0x90c98521,
+ /* XFER_UDMA_5 */ 0x90c98521,
+ /* XFER_UDMA_4 */ 0x90c98521,
+ /* XFER_UDMA_3 */ 0x90cf8521,
+ /* XFER_UDMA_2 */ 0x90cf8521,
+ /* XFER_UDMA_1 */ 0x90cb8521,
+ /* XFER_UDMA_0 */ 0x90cb8521,
+
+ /* XFER_MW_DMA_2 */ 0xa0ca8521,
+ /* XFER_MW_DMA_1 */ 0xa0ca8532,
+ /* XFER_MW_DMA_0 */ 0xa0ca8575,
+
+ /* XFER_PIO_4 */ 0xc0ca8521,
+ /* XFER_PIO_3 */ 0xc0ca8532,
+ /* XFER_PIO_2 */ 0xc0ca8542,
+ /* XFER_PIO_1 */ 0xc0d08572,
+ /* XFER_PIO_0 */ 0xc0d08585
+};
+
+static u32 thirty_three_base_hpt37x[] = {
+ /* XFER_UDMA_6 */ 0x12446231, /* 0x12646231 ?? */
+ /* XFER_UDMA_5 */ 0x12446231,
+ /* XFER_UDMA_4 */ 0x12446231,
+ /* XFER_UDMA_3 */ 0x126c6231,
+ /* XFER_UDMA_2 */ 0x12486231,
+ /* XFER_UDMA_1 */ 0x124c6233,
+ /* XFER_UDMA_0 */ 0x12506297,
+
+ /* XFER_MW_DMA_2 */ 0x22406c31,
+ /* XFER_MW_DMA_1 */ 0x22406c33,
+ /* XFER_MW_DMA_0 */ 0x22406c97,
+
+ /* XFER_PIO_4 */ 0x06414e31,
+ /* XFER_PIO_3 */ 0x06414e42,
+ /* XFER_PIO_2 */ 0x06414e53,
+ /* XFER_PIO_1 */ 0x06814e93,
+ /* XFER_PIO_0 */ 0x06814ea7
+};
+
+static u32 fifty_base_hpt37x[] = {
+ /* XFER_UDMA_6 */ 0x12848242,
+ /* XFER_UDMA_5 */ 0x12848242,
+ /* XFER_UDMA_4 */ 0x12ac8242,
+ /* XFER_UDMA_3 */ 0x128c8242,
+ /* XFER_UDMA_2 */ 0x120c8242,
+ /* XFER_UDMA_1 */ 0x12148254,
+ /* XFER_UDMA_0 */ 0x121882ea,
+
+ /* XFER_MW_DMA_2 */ 0x22808242,
+ /* XFER_MW_DMA_1 */ 0x22808254,
+ /* XFER_MW_DMA_0 */ 0x228082ea,
+
+ /* XFER_PIO_4 */ 0x0a81f442,
+ /* XFER_PIO_3 */ 0x0a81f443,
+ /* XFER_PIO_2 */ 0x0a81f454,
+ /* XFER_PIO_1 */ 0x0ac1f465,
+ /* XFER_PIO_0 */ 0x0ac1f48a
+};
+
+static u32 sixty_six_base_hpt37x[] = {
+ /* XFER_UDMA_6 */ 0x1c869c62,
+ /* XFER_UDMA_5 */ 0x1cae9c62, /* 0x1c8a9c62 */
+ /* XFER_UDMA_4 */ 0x1c8a9c62,
+ /* XFER_UDMA_3 */ 0x1c8e9c62,
+ /* XFER_UDMA_2 */ 0x1c929c62,
+ /* XFER_UDMA_1 */ 0x1c9a9c62,
+ /* XFER_UDMA_0 */ 0x1c829c62,
+
+ /* XFER_MW_DMA_2 */ 0x2c829c62,
+ /* XFER_MW_DMA_1 */ 0x2c829c66,
+ /* XFER_MW_DMA_0 */ 0x2c829d2e,
+
+ /* XFER_PIO_4 */ 0x0c829c62,
+ /* XFER_PIO_3 */ 0x0c829c84,
+ /* XFER_PIO_2 */ 0x0c829ca6,
+ /* XFER_PIO_1 */ 0x0d029d26,
+ /* XFER_PIO_0 */ 0x0d029d5e
+};
+
+#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 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
+
+/*
+ * Hold all the highpoint quirks and revision information in one
+ * place.
+ */
+
+struct hpt_info
{
- char *p = buffer;
- char *chipset_nums[] = {"366", "366", "368",
- "370", "370A", "372",
- "302", "371", "374" };
- int i, len;
-
- p += sprintf(p, "\n "
- "HighPoint HPT366/368/370/372/374\n");
- for (i = 0; i < n_hpt_devs; i++) {
- struct pci_dev *dev = hpt_devs[i];
- unsigned long iobase = dev->resource[4].start;
- u32 class_rev = hpt_revision(dev);
- u8 c0, c1;
-
- p += sprintf(p, "\nController: %d\n", i);
- p += sprintf(p, "Chipset: HPT%s\n", chipset_nums[class_rev]);
- p += sprintf(p, "--------------- Primary Channel "
- "--------------- Secondary Channel "
- "--------------\n");
-
- /* get the bus master status registers */
- c0 = inb(iobase + 0x2);
- c1 = inb(iobase + 0xa);
- p += sprintf(p, "Enabled: %s"
- " %s\n",
- (c0 & 0x80) ? "no" : "yes",
- (c1 & 0x80) ? "no" : "yes");
-#if 0
- if (hpt_minimum_revision(dev, 3)) {
- u8 cbl;
- cbl = inb(iobase + 0x7b);
- outb(cbl | 1, iobase + 0x7b);
- outb(cbl & ~1, iobase + 0x7b);
- cbl = inb(iobase + 0x7a);
- p += sprintf(p, "Cable: ATA-%d"
- " ATA-%d\n",
- (cbl & 0x02) ? 33 : 66,
- (cbl & 0x01) ? 33 : 66);
- p += sprintf(p, "\n");
- }
-#endif
- p += sprintf(p, "--------------- drive0 --------- drive1 "
- "------- drive0 ---------- drive1 -------\n");
- p += sprintf(p, "DMA capable: %s %s"
- " %s %s\n",
- (c0 & 0x20) ? "yes" : "no ",
- (c0 & 0x40) ? "yes" : "no ",
- (c1 & 0x20) ? "yes" : "no ",
- (c1 & 0x40) ? "yes" : "no ");
-
- {
- u8 c2, c3;
- /* older revs don't have these registers mapped
- * into io space */
- pci_read_config_byte(dev, 0x43, &c0);
- pci_read_config_byte(dev, 0x47, &c1);
- pci_read_config_byte(dev, 0x4b, &c2);
- pci_read_config_byte(dev, 0x4f, &c3);
-
- p += sprintf(p, "Mode: %s %s"
- " %s %s\n",
- (c0 & 0x10) ? "UDMA" : (c0 & 0x20) ? "DMA " :
- (c0 & 0x80) ? "PIO " : "off ",
- (c1 & 0x10) ? "UDMA" : (c1 & 0x20) ? "DMA " :
- (c1 & 0x80) ? "PIO " : "off ",
- (c2 & 0x10) ? "UDMA" : (c2 & 0x20) ? "DMA " :
- (c2 & 0x80) ? "PIO " : "off ",
- (c3 & 0x10) ? "UDMA" : (c3 & 0x20) ? "DMA " :
- (c3 & 0x80) ? "PIO " : "off ");
- }
- }
- p += sprintf(p, "\n");
+ 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;
+};
- /* p - buffer must be less than 4k! */
- len = (p - buffer) - offset;
- *addr = buffer + offset;
-
- return len > count ? count : len;
-}
-#endif /* defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS) */
+/*
+ * 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
+ */
-static u32 hpt_revision (struct pci_dev *dev)
+static __devinit u32 hpt_revision (struct pci_dev *dev)
{
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:
return class_rev;
}
-static u32 hpt_minimum_revision (struct pci_dev *dev, int revision)
-{
- unsigned int class_rev = hpt_revision(dev);
- revision--;
- return ((int) (class_rev > revision) ? 1 : 0);
-}
-
static int check_in_drive_lists(ide_drive_t *drive, const char **list);
static u8 hpt3xx_ratemask (ide_drive_t *drive)
{
- struct pci_dev *dev = HWIF(drive)->pci_dev;
+ ide_hwif_t *hwif = drive->hwif;
+ struct hpt_info *info = ide_get_hwifdata(hwif);
u8 mode = 0;
- if (hpt_minimum_revision(dev, 8)) { /* HPT374 */
+ /* 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 (hpt_minimum_revision(dev, 7)) { /* HPT371 */
+ } else if (info->revision >= 7) { /* HPT371 */
mode = (HPT371_ALLOW_ATA133_6) ? 4 : 3;
- } else if (hpt_minimum_revision(dev, 6)) { /* HPT302 */
+ } else if (info->revision >= 6) { /* HPT302 */
mode = (HPT302_ALLOW_ATA133_6) ? 4 : 3;
- } else if (hpt_minimum_revision(dev, 5)) { /* HPT372 */
+ } else if (info->revision >= 5) { /* HPT372 */
mode = (HPT372_ALLOW_ATA133_6) ? 4 : 3;
- } else if (hpt_minimum_revision(dev, 4)) { /* HPT370A */
+ } else if (info->revision >= 4) { /* HPT370A */
mode = (HPT370_ALLOW_ATA100_5) ? 3 : 2;
- } else if (hpt_minimum_revision(dev, 3)) { /* HPT370 */
+ } 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;
}
- if (!eighty_ninty_three(drive) && (mode))
+ if (!eighty_ninty_three(drive) && mode)
mode = min(mode, (u8)1);
return mode;
}
+/*
+ * Note for the future; the SATA hpt37x we must set
+ * either PIO or UDMA modes 0,4,5
+ */
+
static u8 hpt3xx_ratefilter (ide_drive_t *drive, u8 speed)
{
- struct pci_dev *dev = HWIF(drive)->pci_dev;
+ ide_hwif_t *hwif = drive->hwif;
+ struct hpt_info *info = ide_get_hwifdata(hwif);
u8 mode = hpt3xx_ratemask(drive);
if (drive->media != ide_disk)
break;
case 0x03:
speed = min(speed, (u8)XFER_UDMA_5);
- if (hpt_minimum_revision(dev, 5))
+ if (info->revision >= 5)
break;
if (check_in_drive_lists(drive, bad_ata100_5))
speed = min(speed, (u8)XFER_UDMA_4);
/*
* CHECK ME, Does this need to be set to 5 ??
*/
- if (hpt_minimum_revision(dev, 3))
+ if (info->revision >= 3)
break;
if ((check_in_drive_lists(drive, bad_ata66_4)) ||
(!(HPT366_ALLOW_ATA66_4)))
/*
* CHECK ME, Does this need to be set to 5 ??
*/
- if (hpt_minimum_revision(dev, 3))
+ if (info->revision >= 3)
break;
if (check_in_drive_lists(drive, bad_ata33))
speed = min(speed, (u8)XFER_MW_DMA_2);
return 0;
}
-static unsigned int pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
+static u32 pci_bus_clock_list(u8 speed, u32 *chipset_table)
{
- for ( ; chipset_table->xfer_speed ; chipset_table++)
- if (chipset_table->xfer_speed == speed)
- return chipset_table->chipset_settings;
- return chipset_table->chipset_settings;
+ int i;
+
+ /*
+ * Lookup the transfer mode table to get the index into
+ * the timing table.
+ *
+ * NOTE: For XFER_PIO_SLOW, PIO mode 0 timings will be used.
+ */
+ for (i = 0; i < ARRAY_SIZE(xfer_speeds) - 1; i++)
+ if (xfer_speeds[i] == speed)
+ break;
+ return chipset_table[i];
}
-static void hpt366_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+static int hpt36x_tune_chipset(ide_drive_t *drive, u8 xferspeed)
{
- struct pci_dev *dev = HWIF(drive)->pci_dev;
+ 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 speed = ide_rate_filter(hpt3xx_ratemask(drive), xferspeed);
u8 regtime = (drive->select.b.unit & 0x01) ? 0x44 : 0x40;
- u8 regfast = (HWIF(drive)->channel) ? 0x55 : 0x51;
+ 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 0
- if (drive_fast & 0x02)
- pci_write_config_byte(dev, regfast, drive_fast & ~0x20);
-#else
if (drive_fast & 0x80)
pci_write_config_byte(dev, regfast, drive_fast & ~0x80);
-#endif
- reg2 = pci_bus_clock_list(speed,
- (struct chipset_bus_clock_list_entry *) pci_get_drvdata(dev));
+ reg2 = pci_bus_clock_list(speed, info->speed);
+
/*
* Disable on-chip PIO FIFO/buffer
* (to avoid problems handling I/O errors later)
reg2 &= ~0x80000000;
pci_write_config_dword(dev, regtime, reg2);
-}
-static void hpt368_tune_chipset (ide_drive_t *drive, u8 speed)
-{
- hpt366_tune_chipset(drive, speed);
+ return ide_config_drive_speed(drive, speed);
}
-static void hpt370_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+static int hpt370_tune_chipset(ide_drive_t *drive, u8 xferspeed)
{
- struct pci_dev *dev = HWIF(drive)->pci_dev;
+ 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 speed = ide_rate_filter(hpt3xx_ratemask(drive), xferspeed);
- u8 regfast = (HWIF(drive)->channel) ? 0x55 : 0x51;
+ 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;
if (new_fast != drive_fast)
pci_write_config_byte(dev, regfast, new_fast);
- list_conf = pci_bus_clock_list(speed,
- (struct chipset_bus_clock_list_entry *)
- pci_get_drvdata(dev));
+ 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) {
+ 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);
}
-static void hpt372_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+static int hpt372_tune_chipset(ide_drive_t *drive, u8 xferspeed)
{
- struct pci_dev *dev = HWIF(drive)->pci_dev;
+ 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 speed = ide_rate_filter(hpt3xx_ratemask(drive), xferspeed);
- u8 regfast = (HWIF(drive)->channel) ? 0x55 : 0x51;
+ 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;
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,
- (struct chipset_bus_clock_list_entry *)
- pci_get_drvdata(dev));
+
+ 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);
-}
-static void hpt374_tune_chipset (ide_drive_t *drive, u8 speed)
-{
- hpt372_tune_chipset(drive, speed);
+ return ide_config_drive_speed(drive, speed);
}
static int hpt3xx_tune_chipset (ide_drive_t *drive, u8 speed)
{
- struct pci_dev *dev = HWIF(drive)->pci_dev;
-
- if (hpt_minimum_revision(dev, 8))
- hpt374_tune_chipset(drive, speed);
-#if 0
- else if (hpt_minimum_revision(dev, 7))
- hpt371_tune_chipset(drive, speed);
- else if (hpt_minimum_revision(dev, 6))
- hpt302_tune_chipset(drive, speed);
-#endif
- else if (hpt_minimum_revision(dev, 5))
- hpt372_tune_chipset(drive, speed);
- else if (hpt_minimum_revision(dev, 3))
- hpt370_tune_chipset(drive, speed);
- else if (hpt_minimum_revision(dev, 2))
- hpt368_tune_chipset(drive, speed);
- else
- hpt366_tune_chipset(drive, speed);
-
- return ((int) ide_config_drive_speed(drive, 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);
+ 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 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))
+ 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);
static void hpt3xx_intrproc (ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
if (drive->quirk_list)
return;
static void hpt3xx_maskproc (ide_drive_t *drive, int mask)
{
- struct pci_dev *dev = HWIF(drive)->pci_dev;
+ ide_hwif_t *hwif = drive->hwif;
+ struct hpt_info *info = ide_get_hwifdata(hwif);
+ struct pci_dev *dev = hwif->pci_dev;
if (drive->quirk_list) {
- if (hpt_minimum_revision(dev,3)) {
+ 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));
} else {
if (mask) {
- disable_irq(HWIF(drive)->irq);
+ disable_irq(hwif->irq);
} else {
- enable_irq(HWIF(drive)->irq);
+ enable_irq(hwif->irq);
}
}
} else {
if (IDE_CONTROL_REG)
- HWIF(drive)->OUTB(mask ? (drive->ctl | 2) :
+ hwif->OUTB(mask ? (drive->ctl | 2) :
(drive->ctl & ~2),
IDE_CONTROL_REG);
}
static int hpt366_config_drive_xfer_rate (ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct hd_driveid *id = drive->id;
drive->init_speed = 0;
- if (id && (id->capability & 1) && drive->autodma) {
- /* Consult the list of known "bad" drives */
- if (__ide_dma_bad_drive(drive))
- goto fast_ata_pio;
- if (id->field_valid & 4) {
- if (id->dma_ultra & hwif->ultra_mask) {
- /* Force if Capable UltraDMA */
- int dma = config_chipset_for_dma(drive);
- if ((id->field_valid & 2) && !dma)
- goto try_dma_modes;
- }
- } else if (id->field_valid & 2) {
-try_dma_modes:
- if (id->dma_mword & hwif->mwdma_mask) {
- /* Force if Capable regular DMA modes */
- if (!config_chipset_for_dma(drive))
- goto no_dma_set;
- }
- } else if (__ide_dma_good_drive(drive) &&
- (id->eide_dma_time < 150)) {
- /* Consult the list of known "good" drives */
- if (!config_chipset_for_dma(drive))
- goto no_dma_set;
- } else {
- goto fast_ata_pio;
+ if ((id->capability & 1) && drive->autodma) {
+
+ if (ide_use_dma(drive)) {
+ if (config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);
}
- return hwif->ide_dma_on(drive);
+
+ goto fast_ata_pio;
+
} else if ((id->capability & 8) || (id->field_valid & 2)) {
fast_ata_pio:
-no_dma_set:
hpt3xx_tune_drive(drive, 5);
return hwif->ide_dma_off_quietly(drive);
}
drive->name, __FUNCTION__, reg50h, reg52h, reg5ah);
if (reg5ah & 0x10)
pci_write_config_byte(dev, 0x5a, reg5ah & ~0x10);
-#if 0
- /* how about we flush and reset, mmmkay? */
- pci_write_config_byte(dev, 0x51, 0x1F);
- /* fall through to a reset */
- case ide_dma_begin:
- case ide_dma_end:
- /* reset the chips state over and over.. */
- pci_write_config_byte(dev, 0x51, 0x13);
-#endif
return __ide_dma_lostirq(drive);
}
udelay(10);
}
-static int hpt370_ide_dma_begin (ide_drive_t *drive)
+static void hpt370_ide_dma_start(ide_drive_t *drive)
{
#ifdef HPT_RESET_STATE_ENGINE
hpt370_clear_engine(drive);
#endif
- return __ide_dma_begin(drive);
+ ide_dma_start(drive);
}
static int hpt370_ide_dma_end (ide_drive_t *drive)
u8 dma_stat = 0, dma_cmd = 0;
pci_read_config_byte(HWIF(drive)->pci_dev, reginfo, &bfifo);
- printk("%s: %d bytes in FIFO\n", drive->name, 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);
return __ide_dma_end(drive);
}
-/*
- * Since SUN Cobalt is attempting to do this operation, I should disclose
- * this has been a long time ago Thu Jul 27 16:40:57 2000 was the patch date
- * HOTSWAP ATA Infrastructure.
+/**
+ * hpt3xxn_set_clock - perform clock switching dance
+ * @hwif: hwif to switch
+ * @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 hpt3xx_reset (ide_drive_t *drive)
+static void hpt3xxn_set_clock(ide_hwif_t *hwif, u8 mode)
{
-#if 0
- unsigned long high_16 = pci_resource_start(HWIF(drive)->pci_dev, 4);
- u8 reset = (HWIF(drive)->channel) ? 0x80 : 0x40;
- u8 reg59h = 0;
-
- pci_read_config_byte(HWIF(drive)->pci_dev, 0x59, ®59h);
- pci_write_config_byte(HWIF(drive)->pci_dev, 0x59, reg59h|reset);
- pci_write_config_byte(HWIF(drive)->pci_dev, 0x59, reg59h);
-#endif
-}
+ u8 mcr1, scr2 = hwif->INB(hwif->dma_master + 0x7b);
-static int hpt3xx_tristate (ide_drive_t * drive, int state)
-{
- ide_hwif_t *hwif = HWIF(drive);
- struct pci_dev *dev = hwif->pci_dev;
- u8 reg59h = 0, reset = (hwif->channel) ? 0x80 : 0x40;
- u8 regXXh = 0, state_reg= (hwif->channel) ? 0x57 : 0x53;
+ if ((scr2 & 0x7f) == mode)
+ return;
- if (!hwif)
- return -EINVAL;
+ /* MISC. control register 1 has the channel enable bit... */
+ mcr1 = hwif->INB(hwif->dma_master + 0x70);
-// hwif->bus_state = state;
+ /* Tristate the bus */
+ if (mcr1 & 0x04)
+ hwif->OUTB(0x80, hwif->dma_master + 0x73);
+ hwif->OUTB(0x80, hwif->dma_master + 0x77);
- pci_read_config_byte(dev, 0x59, ®59h);
- pci_read_config_byte(dev, state_reg, ®XXh);
+ /* Switch clock and reset channels */
+ hwif->OUTB(mode, hwif->dma_master + 0x7b);
+ hwif->OUTB(0xc0, hwif->dma_master + 0x79);
- if (state) {
- (void) ide_do_reset(drive);
- pci_write_config_byte(dev, state_reg, regXXh|0x80);
- pci_write_config_byte(dev, 0x59, reg59h|reset);
- } else {
- pci_write_config_byte(dev, 0x59, reg59h & ~(reset));
- pci_write_config_byte(dev, state_reg, regXXh & ~(0x80));
- (void) ide_do_reset(drive);
- }
- return 0;
+ /* Reset state machines */
+ if (mcr1 & 0x04)
+ hwif->OUTB(0x37, hwif->dma_master + 0x70);
+ hwif->OUTB(0x37, 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 + 0x77);
+}
+
+/**
+ * hpt3xxn_rw_disk - prepare for I/O
+ * @drive: drive for command
+ * @rq: block request structure
+ *
+ * This is called when a disk I/O is issued to HPT3xxN.
+ * We need it because of the clock switching.
+ */
+
+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);
}
/*
- * set/get power state for a drive.
- * turning the power off does the following things:
- * 1) soft-reset the drive
- * 2) tri-states the ide bus
+ * Set/get power state for a drive.
*
- * when we turn things back on, we need to re-initialize things.
+ * When we turn the power back on, we need to re-initialize things.
*/
#define TRISTATE_BIT 0x8000
-static int hpt370_busproc(ide_drive_t * drive, int state)
+
+static int hpt3xx_busproc(ide_drive_t *drive, int state)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_hwif_t *hwif = drive->hwif;
struct pci_dev *dev = hwif->pci_dev;
- u8 tristate = 0, resetmask = 0, bus_reg = 0;
- u16 tri_reg;
-
- if (!hwif)
- return -EINVAL;
+ u8 tristate, resetmask, bus_reg = 0;
+ u16 tri_reg = 0;
hwif->bus_state = state;
if (hwif->channel) {
/* secondary channel */
- tristate = 0x56;
- resetmask = 0x80;
+ tristate = 0x56;
+ resetmask = 0x80;
} else {
/* primary channel */
- tristate = 0x52;
+ tristate = 0x52;
resetmask = 0x40;
}
- /* grab status */
+ /* Grab the status. */
pci_read_config_word(dev, tristate, &tri_reg);
pci_read_config_byte(dev, 0x59, &bus_reg);
- /* set the state. we don't set it if we don't need to do so.
- * make sure that the drive knows that it has failed if it's off */
+ /*
+ * Set the state. We don't set it if we don't need to do so.
+ * Make sure that the drive knows that it has failed if it's off.
+ */
switch (state) {
case BUSSTATE_ON:
- hwif->drives[0].failures = 0;
- hwif->drives[1].failures = 0;
- if ((bus_reg & resetmask) == 0)
+ if (!(bus_reg & resetmask))
return 0;
- tri_reg &= ~TRISTATE_BIT;
- bus_reg &= ~resetmask;
- break;
+ 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);
+ return 0;
case BUSSTATE_OFF:
- hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
- hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
- if ((tri_reg & TRISTATE_BIT) == 0 && (bus_reg & resetmask))
+ if ((bus_reg & resetmask) && !(tri_reg & TRISTATE_BIT))
return 0;
tri_reg &= ~TRISTATE_BIT;
- bus_reg |= resetmask;
break;
case BUSSTATE_TRISTATE:
- hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
- hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
- if ((tri_reg & TRISTATE_BIT) && (bus_reg & resetmask))
+ if ((bus_reg & resetmask) && (tri_reg & TRISTATE_BIT))
return 0;
tri_reg |= TRISTATE_BIT;
- bus_reg |= resetmask;
break;
+ default:
+ return -EINVAL;
}
- pci_write_config_byte(dev, 0x59, bus_reg);
- pci_write_config_word(dev, tristate, tri_reg);
+ 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);
return 0;
}
-static int __devinit init_hpt37x(struct pci_dev *dev)
+static void __devinit hpt366_clocking(ide_hwif_t *hwif)
{
- int adjust, i;
- u16 freq;
- u32 pll;
- u8 reg5bh;
+ u32 reg1 = 0;
+ struct hpt_info *info = ide_get_hwifdata(hwif);
-#if 1
- u8 reg5ah = 0;
- pci_read_config_byte(dev, 0x5a, ®5ah);
- /* interrupt force enable */
- pci_write_config_byte(dev, 0x5a, (reg5ah & ~0x10));
-#endif
+ pci_read_config_dword(hwif->pci_dev, 0x40, ®1);
+ /* 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;
+ break;
+ }
+}
+
+static void __devinit hpt37x_clocking(ide_hwif_t *hwif)
+{
+ 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;
+
/*
* default to pci clock. make sure MA15/16 are set to output
- * to prevent drives having problems with 40-pin cables.
+ * 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 ?
*/
pci_write_config_byte(dev, 0x5b, 0x23);
/*
- * set up the PLL. we need to adjust it so that it's stable.
- * freq = Tpll * 192 / Tpci
+ * 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...
*/
- pci_read_config_word(dev, 0x78, &freq);
- freq &= 0x1FF;
- if (freq < 0xa0) {
- pll = F_LOW_PCI_33;
- if (hpt_minimum_revision(dev,8))
- pci_set_drvdata(dev, (void *) thirty_three_base_hpt374);
- else if (hpt_minimum_revision(dev,5))
- pci_set_drvdata(dev, (void *) thirty_three_base_hpt372);
- else if (hpt_minimum_revision(dev,4))
- pci_set_drvdata(dev, (void *) thirty_three_base_hpt370a);
- else
- pci_set_drvdata(dev, (void *) thirty_three_base_hpt370);
- printk("HPT37X: using 33MHz PCI clock\n");
- } else if (freq < 0xb0) {
- pll = F_LOW_PCI_40;
- } else if (freq < 0xc8) {
- pll = F_LOW_PCI_50;
- if (hpt_minimum_revision(dev,8))
- pci_set_drvdata(dev, NULL);
- else if (hpt_minimum_revision(dev,5))
- pci_set_drvdata(dev, (void *) fifty_base_hpt372);
- else if (hpt_minimum_revision(dev,4))
- pci_set_drvdata(dev, (void *) fifty_base_hpt370a);
- else
- pci_set_drvdata(dev, (void *) fifty_base_hpt370a);
- printk("HPT37X: using 50MHz PCI clock\n");
- } else {
- pll = F_LOW_PCI_66;
- if (hpt_minimum_revision(dev,8))
- {
- printk(KERN_ERR "HPT37x: 66MHz timings are not supported.\n");
- pci_set_drvdata(dev, NULL);
+ 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);
}
- else if (hpt_minimum_revision(dev,5))
- pci_set_drvdata(dev, (void *) sixty_six_base_hpt372);
- else if (hpt_minimum_revision(dev,4))
- pci_set_drvdata(dev, (void *) sixty_six_base_hpt370a);
+ freq = temp / 128;
+ } else
+ freq = temp & 0x1ff;
+
+ /*
+ * HPT3xxN chips use different PCI clock information.
+ * Currently we always set up the PLL for them.
+ */
+
+ 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
- pci_set_drvdata(dev, (void *) sixty_six_base_hpt370);
- printk("HPT37X: using 66MHz PCI clock\n");
+ pll = F_LOW_PCI_66;
+
+ 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;
+ 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");
+ }
+ }
+
+ if (pll == F_LOW_PCI_66)
+ info->flags |= PCI_66MHZ;
+
/*
* 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.
+ *
+ * ToDo: Use 66MHz PLL when ATA133 devices are present on a
+ * 372 device so we can get ATA133 support
*/
- if (pci_get_drvdata(dev))
+ if (info->speed)
goto init_hpt37X_done;
+
+ info->flags |= PLL_MODE;
/*
- * adjust PLL based upon PCI clock, enable it, and wait for
- * stabilization.
+ * Adjust the PLL based upon the PCI clock, enable it, and
+ * wait for stabilization...
*/
adjust = 0;
freq = (pll < F_LOW_PCI_50) ? 2 : 4;
pci_write_config_dword(dev, 0x5c,
pll & ~0x100);
pci_write_config_byte(dev, 0x5b, 0x21);
- if (hpt_minimum_revision(dev,8))
- pci_set_drvdata(dev, (void *) fifty_base_hpt370a);
- else if (hpt_minimum_revision(dev,5))
- pci_set_drvdata(dev, (void *) fifty_base_hpt372);
- else if (hpt_minimum_revision(dev,4))
- pci_set_drvdata(dev, (void *) fifty_base_hpt370a);
- else
- pci_set_drvdata(dev, (void *) fifty_base_hpt370a);
+
+ info->speed = fifty_base_hpt37x;
printk("HPT37X: using 50MHz internal PLL\n");
goto init_hpt37X_done;
}
}
init_hpt37X_done:
- /* reset state engine */
- pci_write_config_byte(dev, 0x50, 0x37);
- pci_write_config_byte(dev, 0x54, 0x37);
+ 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);
+}
+
+static int __devinit init_hpt37x(struct pci_dev *dev)
+{
+ u8 reg5ah;
+
+ pci_read_config_byte(dev, 0x5a, ®5ah);
+ /* interrupt force enable */
+ pci_write_config_byte(dev, 0x5a, (reg5ah & ~0x10));
return 0;
}
pci_write_config_byte(dev, 0x51, drive_fast & ~0x80);
pci_read_config_dword(dev, 0x40, ®1);
- /* detect bus speed by looking at control reg timing: */
- switch((reg1 >> 8) & 7) {
- case 5:
- pci_set_drvdata(dev, (void *) forty_base_hpt366);
- break;
- case 9:
- pci_set_drvdata(dev, (void *) twenty_five_base_hpt366);
- break;
- case 7:
- default:
- pci_set_drvdata(dev, (void *) thirty_three_base_hpt366);
- break;
- }
-
- if (!pci_get_drvdata(dev))
- {
- printk(KERN_ERR "hpt366: unknown bus timing.\n");
- pci_set_drvdata(dev, NULL);
- }
return 0;
}
static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const char *name)
{
int ret = 0;
- u8 test = 0;
+ /*
+ * FIXME: Not portable. Also, why do we enable the ROM in the first place?
+ * We don't seem to be using it.
+ */
if (dev->resource[PCI_ROM_RESOURCE].start)
- pci_write_config_byte(dev, PCI_ROM_ADDRESS,
+ pci_write_config_dword(dev, PCI_ROM_ADDRESS,
dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
- pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &test);
- if (test != (L1_CACHE_BYTES / 4))
- pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE,
- (L1_CACHE_BYTES / 4));
-
- pci_read_config_byte(dev, PCI_LATENCY_TIMER, &test);
- if (test != 0x78)
- pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
-
- pci_read_config_byte(dev, PCI_MIN_GNT, &test);
- if (test != 0x08)
- pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
-
- pci_read_config_byte(dev, PCI_MAX_LAT, &test);
- if (test != 0x08)
- pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
+ 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);
- if (hpt_minimum_revision(dev, 3)) {
+ if (hpt_revision(dev) >= 3)
ret = init_hpt37x(dev);
- } else {
- ret =init_hpt366(dev);
- }
+ else
+ ret = init_hpt366(dev);
+
if (ret)
return ret;
-
-#if defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS)
- hpt_devs[n_hpt_devs++] = dev;
-
- if (!hpt366_proc) {
- hpt366_proc = 1;
- ide_pci_create_host_proc("hpt366", hpt366_get_info);
- }
-#endif /* DISPLAY_HPT366_TIMINGS && CONFIG_PROC_FS */
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;
-
+ int serialize = HPT_SERIALIZE_IO;
+
hwif->tuneproc = &hpt3xx_tune_drive;
hwif->speedproc = &hpt3xx_tune_chipset;
hwif->quirkproc = &hpt3xx_quirkproc;
hwif->intrproc = &hpt3xx_intrproc;
hwif->maskproc = &hpt3xx_maskproc;
+
+ /*
+ * 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) {
+ /*
+ * Clock is shared between the channels,
+ * so we'll have to serialize them... :-(
+ */
+ serialize = 1;
+ hwif->rw_disk = &hpt3xxn_rw_disk;
+ }
/*
* The HPT37x uses the CBLID pins as outputs for MA15/MA16
* address lines to access an external eeprom. To read valid
* cable detect state the pins must be enabled as inputs.
*/
- if (hpt_minimum_revision(dev, 8) && PCI_FUNC(dev->devfn) & 1) {
+ if (info->revision >= 8 && (PCI_FUNC(dev->devfn) & 1)) {
/*
* HPT374 PCI function 1
* - set bit 15 of reg 0x52 to enable TCBLID as input
pci_read_config_byte(dev, 0x5a, &ata66);
pci_write_config_word(dev, 0x52, mcr3);
pci_write_config_word(dev, 0x56, mcr6);
- } else if (hpt_minimum_revision(dev, 3)) {
+ } else if (info->revision >= 3) {
/*
* HPT370/372 and 374 pcifn 0
* - clear bit 0 of 0x5b to enable P/SCBLID as inputs
PCI_FUNC(hwif->pci_dev->devfn));
#endif /* DEBUG */
-#ifdef HPT_SERIALIZE_IO
- /* serialize access to this device */
- if (hwif->mate)
+ /* Serialize access to this device */
+ if (serialize && hwif->mate)
hwif->serialized = hwif->mate->serialized = 1;
-#endif
- if (hpt_minimum_revision(dev,3)) {
- u8 reg5ah = 0;
- pci_write_config_byte(dev, 0x5a, reg5ah & ~0x10);
- /*
- * set up ioctl for power status.
- * note: power affects both
- * drives on each channel
- */
- hwif->resetproc = &hpt3xx_reset;
- hwif->busproc = &hpt370_busproc;
-// hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
- } else if (hpt_minimum_revision(dev,2)) {
- hwif->resetproc = &hpt3xx_reset;
- hwif->busproc = &hpt3xx_tristate;
- } else {
- hwif->resetproc = &hpt3xx_reset;
- hwif->busproc = &hpt3xx_tristate;
- }
+ /*
+ * Set up ioctl for power status.
+ * NOTE: power affects both drives on each channel.
+ */
+ hwif->busproc = &hpt3xx_busproc;
if (!hwif->dma_base) {
hwif->drives[0].autotune = 1;
hwif->udma_four = ((ata66 & regmask) ? 0 : 1);
hwif->ide_dma_check = &hpt366_config_drive_xfer_rate;
- if (hpt_minimum_revision(dev,8)) {
+ if (info->revision >= 8) {
hwif->ide_dma_test_irq = &hpt374_ide_dma_test_irq;
hwif->ide_dma_end = &hpt374_ide_dma_end;
- } else if (hpt_minimum_revision(dev,5)) {
+ } 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 (hpt_minimum_revision(dev,3)) {
- hwif->ide_dma_begin = &hpt370_ide_dma_begin;
+ } 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 (hpt_minimum_revision(dev,2))
+ } else if (info->revision >= 2)
hwif->ide_dma_lostirq = &hpt366_ide_dma_lostirq;
else
hwif->ide_dma_lostirq = &hpt366_ide_dma_lostirq;
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;
if (!dmabase)
return;
- if(pci_get_drvdata(hwif->pci_dev) == NULL)
- {
- printk(KERN_WARNING "hpt: no known IDE timings, disabling DMA.\n");
+ if(info->speed == NULL) {
+ printk(KERN_WARNING "hpt366: no known IDE timings, disabling DMA.\n");
return;
}
ide_setup_dma(hwif, dmabase, 8);
}
-static void __devinit init_setup_hpt374(struct pci_dev *dev, ide_pci_device_t *d)
+/*
+ * 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;
if (PCI_FUNC(dev->devfn) & 1)
- return;
+ return -ENODEV;
while ((findev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
if ((findev->vendor == dev->vendor) &&
printk(KERN_WARNING "%s: pci-config space interrupt "
"fixed.\n", d->name);
}
- ide_setup_pci_devices(dev, findev, d);
- return;
+ return ide_setup_pci_devices(dev, findev, d);
}
}
- ide_setup_pci_device(dev, d);
+ return ide_setup_pci_device(dev, d);
+}
+
+static int __devinit init_setup_hpt37x(struct pci_dev *dev, ide_pci_device_t *d)
+{
+ return ide_setup_pci_device(dev, d);
}
-static void __devinit init_setup_hpt37x(struct pci_dev *dev, ide_pci_device_t *d)
+static int __devinit init_setup_hpt371(struct pci_dev *dev, ide_pci_device_t *d)
{
- ide_setup_pci_device(dev, d);
+ u8 mcr1 = 0;
+
+ /*
+ * HPT371 chips physically have only one channel, the secondary one,
+ * but the primary channel registers do exist! Go figure...
+ * So, we manually disable the non-existing channel here
+ * (if the BIOS hasn't done this already).
+ */
+ pci_read_config_byte(dev, 0x50, &mcr1);
+ if (mcr1 & 0x04)
+ pci_write_config_byte(dev, 0x50, (mcr1 & ~0x04));
+
+ return ide_setup_pci_device(dev, d);
}
-static void __devinit init_setup_hpt366(struct pci_dev *dev, ide_pci_device_t *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"};
+ "HPT370", "HPT370A", "HPT372",
+ "HPT372N" };
if (PCI_FUNC(dev->devfn) & 1)
- return;
+ return -ENODEV;
pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
class_rev &= 0xff;
- strcpy(d->name, chipset_names[class_rev]);
+ if(dev->device == PCI_DEVICE_ID_TTI_HPT372N)
+ class_rev = 6;
+
+ if(class_rev <= 6)
+ d->name = chipset_names[class_rev];
switch(class_rev) {
+ case 6:
case 5:
case 4:
- case 3: ide_setup_pci_device(dev, d);
- return;
- default: break;
+ case 3:
+ goto init_single;
+ default:
+ break;
}
d->channels = 1;
"pin1=%d pin2=%d\n", d->name,
pin1, pin2);
}
- ide_setup_pci_devices(dev, findev, d);
- return;
+ return ide_setup_pci_devices(dev, findev, d);
}
}
- ide_setup_pci_device(dev, d);
+init_single:
+ return ide_setup_pci_device(dev, d);
}
+static ide_pci_device_t hpt366_chipsets[] __devinitdata = {
+ { /* 0 */
+ .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,
+ .bootable = OFF_BOARD,
+ .extra = 240
+ },{ /* 1 */
+ .name = "HPT372A",
+ .init_setup = init_setup_hpt37x,
+ .init_chipset = init_chipset_hpt366,
+ .init_iops = init_iops_hpt366,
+ .init_hwif = init_hwif_hpt366,
+ .init_dma = init_dma_hpt366,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ },{ /* 2 */
+ .name = "HPT302",
+ .init_setup = init_setup_hpt37x,
+ .init_chipset = init_chipset_hpt366,
+ .init_iops = init_iops_hpt366,
+ .init_hwif = init_hwif_hpt366,
+ .init_dma = init_dma_hpt366,
+ .channels = 2,
+ .autodma = AUTODMA,
+ .bootable = OFF_BOARD,
+ },{ /* 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,
+ },{ /* 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,
+ .bootable = OFF_BOARD,
+ },{ /* 5 */
+ .name = "HPT372N",
+ .init_setup = init_setup_hpt37x,
+ .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,
+ .bootable = OFF_BOARD,
+ }
+};
/**
* hpt366_init_one - called when an HPT366 is found
*
* Called when the PCI registration layer (or the IDE initialization)
* finds a device matching our IDE device tables.
+ *
+ * NOTE: since we'll have to modify some fields of the ide_pci_device_t
+ * structure depending on the chip's revision, we'd better pass a local
+ * copy down the call chain...
*/
-
static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
- ide_pci_device_t *d = &hpt366_chipsets[id->driver_data];
+ ide_pci_device_t d = hpt366_chipsets[id->driver_data];
- d->init_setup(dev, d);
- return 0;
+ return d.init_setup(dev, &d);
}
static struct pci_device_id hpt366_pci_tbl[] = {
{ PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT302, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
{ PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT371, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
{ PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT374, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
+ { PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT372N, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
{ 0, },
};
MODULE_DEVICE_TABLE(pci, hpt366_pci_tbl);
static struct pci_driver driver = {
- .name = "HPT366 IDE",
+ .name = "HPT366_IDE",
.id_table = hpt366_pci_tbl,
.probe = hpt366_init_one,
};
-static int hpt366_ide_init(void)
+static int __init hpt366_ide_init(void)
{
return ide_pci_register_driver(&driver);
}
git://git.onelab.eu / linux-2.6.git / blobdiff