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SubjectHPT370/366 testers needed
All,

We have this (attached) large patch for the HighPoint driver.
Specifically, it deals with HPT370 controllers, and should make them MUCH
more stable (Adrian spent weeks on the phone with HighPoint).

What I'd like is for people to test this patch on other systems with
HighPoint 370 controllers. Also, I need people with HPT366 chips to test,
and find any problems - we don't have HPT366 here to test.

Volunteers?

--
Tim Hockin
Systems Software Engineer
Sun Microsystems, Cobalt Server Appliances
thockin@sun.comdiff -ruN dist-2.4.12+patches/drivers/ide/hpt366.c cvs-2.4.12+patches/drivers/ide/hpt366.c
--- dist-2.4.12+patches/drivers/ide/hpt366.c Mon Oct 15 10:21:49 2001
+++ cvs-2.4.12+patches/drivers/ide/hpt366.c Mon Oct 15 10:21:49 2001
@@ -1,7 +1,8 @@
/*
- * linux/drivers/ide/hpt366.c Version 0.18 June. 9, 2000
+ * linux/drivers/ide/hpt366.c Version 0.22 20 Sep 2001
*
* Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
+ * Portions Copyright (C) 2001 Sun Microsystems, Inc.
* May be copied or modified under the terms of the GNU General Public License
*
* Thanks to HighPoint Technologies for their assistance, and hardware.
@@ -11,6 +12,29 @@
*
* Note that final HPT370 support was done by force extraction of GPL.
*
+ * - add function for getting/setting power status of drive
+ * - the HPT370's state machine can get confused. reset it before each dma
+ * xfer to prevent that from happening.
+ * - reset state engine whenever we get an error.
+ * - check for busmaster state at end of dma.
+ * - use new highpoint timings.
+ * - detect bus speed using highpoint register.
+ * - use pll if we don't have a clock table. added a 66MHz table that's
+ * just 2x the 33MHz table.
+ * - removed turnaround. NOTE: we never want to switch between pll and
+ * pci clocks as the chip can glitch in those cases. the highpoint
+ * approved workaround slows everything down too much to be useful. in
+ * addition, we would have to serialize access to each chip.
+ * Adrian Sun <a.sun@sun.com>
+ *
+ * add drive timings for 66MHz PCI bus,
+ * fix ATA Cable signal detection, fix incorrect /proc info
+ * add /proc display for per-drive PIO/DMA/UDMA mode and
+ * per-channel ATA-33/66 Cable detect.
+ * Duncan Laurie <void@sun.com>
+ *
+ * fixup /proc output for multiple controllers
+ * Tim Hockin <thockin@sun.com>
*/

#include <linux/config.h>
@@ -28,6 +52,7 @@
#include <linux/init.h>
#include <linux/ide.h>

+#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/irq.h>

@@ -35,6 +60,11 @@

#define DISPLAY_HPT366_TIMINGS

+/* various tuning parameters */
+#define HPT_RESET_STATE_ENGINE
+/*#define HPT_DELAY_INTERRUPT*/
+/*#define HPT_SERIALIZE_IO*/
+
#if defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS)
#include <linux/stat.h>
#include <linux/proc_fs.h>
@@ -106,146 +136,300 @@

struct chipset_bus_clock_list_entry {
byte xfer_speed;
- unsigned int chipset_settings_write;
- unsigned int chipset_settings_read;
+ unsigned int chipset_settings;
};

+/* key for bus clock timings
+ * bit
+ * 0:3 data_high_time. inactive time of DIOW_/DIOR_ for PIO and MW
+ * DMA. cycles = value + 1
+ * 4:8 data_low_time. active time of DIOW_/DIOR_ for PIO and MW
+ * DMA. cycles = value + 1
+ * 9:12 cmd_high_time. inactive time of DIOW_/DIOR_ during task file
+ * register access.
+ * 13:17 cmd_low_time. active time of DIOW_/DIOR_ during task file
+ * register access.
+ * 18:21 udma_cycle_time. clock freq and clock cycles for UDMA xfer.
+ * during task file register access.
+ * 22:24 pre_high_time. time to initialize 1st cycle for PIO and MW DMA
+ * xfer.
+ * 25:27 cmd_pre_high_time. time to initialize 1st PIO cycle for task
+ * register access.
+ * 28 UDMA enable
+ * 29 DMA enable
+ * 30 PIO_MST enable. if set, the chip is in bus master mode during
+ * PIO.
+ * 31 FIFO enable.
+ */
struct chipset_bus_clock_list_entry forty_base [] = {

- { XFER_UDMA_4, 0x900fd943, 0x900fd943 },
- { XFER_UDMA_3, 0x900ad943, 0x900ad943 },
- { XFER_UDMA_2, 0x900bd943, 0x900bd943 },
- { XFER_UDMA_1, 0x9008d943, 0x9008d943 },
- { XFER_UDMA_0, 0x9008d943, 0x9008d943 },
-
- { XFER_MW_DMA_2, 0xa008d943, 0xa008d943 },
- { XFER_MW_DMA_1, 0xa010d955, 0xa010d955 },
- { XFER_MW_DMA_0, 0xa010d9fc, 0xa010d9fc },
-
- { XFER_PIO_4, 0xc008d963, 0xc008d963 },
- { XFER_PIO_3, 0xc010d974, 0xc010d974 },
- { XFER_PIO_2, 0xc010d997, 0xc010d997 },
- { XFER_PIO_1, 0xc010d9c7, 0xc010d9c7 },
- { XFER_PIO_0, 0xc018d9d9, 0xc018d9d9 },
- { 0, 0x0120d9d9, 0x0120d9d9 }
+ { 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 },
+ { 0, 0x0120d9d9 }
};

struct chipset_bus_clock_list_entry thirty_three_base [] = {

- { XFER_UDMA_4, 0x90c9a731, 0x90c9a731 },
- { XFER_UDMA_3, 0x90cfa731, 0x90cfa731 },
- { XFER_UDMA_2, 0x90caa731, 0x90caa731 },
- { XFER_UDMA_1, 0x90cba731, 0x90cba731 },
- { XFER_UDMA_0, 0x90c8a731, 0x90c8a731 },
-
- { XFER_MW_DMA_2, 0xa0c8a731, 0xa0c8a731 },
- { XFER_MW_DMA_1, 0xa0c8a732, 0xa0c8a732 }, /* 0xa0c8a733 */
- { XFER_MW_DMA_0, 0xa0c8a797, 0xa0c8a797 },
-
- { XFER_PIO_4, 0xc0c8a731, 0xc0c8a731 },
- { XFER_PIO_3, 0xc0c8a742, 0xc0c8a742 },
- { XFER_PIO_2, 0xc0d0a753, 0xc0d0a753 },
- { XFER_PIO_1, 0xc0d0a7a3, 0xc0d0a7a3 }, /* 0xc0d0a793 */
- { XFER_PIO_0, 0xc0d0a7aa, 0xc0d0a7aa }, /* 0xc0d0a7a7 */
- { 0, 0x0120a7a7, 0x0120a7a7 }
+ { 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 */
+ { 0, 0x0120a7a7 }
};

struct chipset_bus_clock_list_entry twenty_five_base [] = {

- { XFER_UDMA_4, 0x90c98521, 0x90c98521 },
- { XFER_UDMA_3, 0x90cf8521, 0x90cf8521 },
- { XFER_UDMA_2, 0x90cf8521, 0x90cf8521 },
- { XFER_UDMA_1, 0x90cb8521, 0x90cb8521 },
- { XFER_UDMA_0, 0x90cb8521, 0x90cb8521 },
-
- { XFER_MW_DMA_2, 0xa0ca8521, 0xa0ca8521 },
- { XFER_MW_DMA_1, 0xa0ca8532, 0xa0ca8532 },
- { XFER_MW_DMA_0, 0xa0ca8575, 0xa0ca8575 },
-
- { XFER_PIO_4, 0xc0ca8521, 0xc0ca8521 },
- { XFER_PIO_3, 0xc0ca8532, 0xc0ca8532 },
- { XFER_PIO_2, 0xc0ca8542, 0xc0ca8542 },
- { XFER_PIO_1, 0xc0d08572, 0xc0d08572 },
- { XFER_PIO_0, 0xc0d08585, 0xc0d08585 },
- { 0, 0x01208585, 0x01208585 }
+ { 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 },
+ { 0, 0x01208585 }
+};
+
+#if 1
+/* these are the current (4 sep 2001) timings from highpoint */
+struct chipset_bus_clock_list_entry thirty_three_base_hpt370[] = {
+ { 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 },
+ { 0, 0x06814ea7 }
};

+/* 2x 33MHz timings */
+struct chipset_bus_clock_list_entry sixty_six_base_hpt370[] = {
+ { XFER_UDMA_5, 0x1488e673 },
+ { XFER_UDMA_4, 0x1488e673 },
+ { XFER_UDMA_3, 0x1498e673 },
+ { XFER_UDMA_2, 0x1490e673 },
+ { XFER_UDMA_1, 0x1498e677 },
+ { XFER_UDMA_0, 0x14a0e73f },
+
+ { XFER_MW_DMA_2, 0x2480fa73 },
+ { XFER_MW_DMA_1, 0x2480fa77 },
+ { XFER_MW_DMA_0, 0x2480fb3f },
+
+ { XFER_PIO_4, 0x0c82be73 },
+ { XFER_PIO_3, 0x0c82be95 },
+ { XFER_PIO_2, 0x0c82beb7 },
+ { XFER_PIO_1, 0x0d02bf37 },
+ { XFER_PIO_0, 0x0d02bf5f },
+ { 0, 0x0d02bf5f }
+};
+#else
+/* from highpoint documentation. these are old values */
struct chipset_bus_clock_list_entry thirty_three_base_hpt370[] = {
- { XFER_UDMA_5, 0x1A85F442, 0x16454e31 },
- { XFER_UDMA_4, 0x16454e31, 0x16454e31 },
- { XFER_UDMA_3, 0x166d4e31, 0x166d4e31 },
- { XFER_UDMA_2, 0x16494e31, 0x16494e31 },
- { XFER_UDMA_1, 0x164d4e31, 0x164d4e31 },
- { XFER_UDMA_0, 0x16514e31, 0x16514e31 },
-
- { XFER_MW_DMA_2, 0x26514e21, 0x26514e21 },
- { XFER_MW_DMA_1, 0x26514e33, 0x26514e33 },
- { XFER_MW_DMA_0, 0x26514e97, 0x26514e97 },
-
- { XFER_PIO_4, 0x06514e21, 0x06514e21 },
- { XFER_PIO_3, 0x06514e22, 0x06514e22 },
- { XFER_PIO_2, 0x06514e33, 0x06514e33 },
- { XFER_PIO_1, 0x06914e43, 0x06914e43 },
- { XFER_PIO_0, 0x06914e57, 0x06914e57 },
- { 0, 0x06514e57, 0x06514e57 }
+ { XFER_UDMA_5, 0x16454e31 },
+ { XFER_UDMA_4, 0x16454e31 },
+ { XFER_UDMA_3, 0x166d4e31 },
+ { XFER_UDMA_2, 0x16494e31 },
+ { XFER_UDMA_1, 0x164d4e31 },
+ { XFER_UDMA_0, 0x16514e31 },
+
+ { XFER_MW_DMA_2, 0x26514e21 },
+ { XFER_MW_DMA_1, 0x26514e33 },
+ { XFER_MW_DMA_0, 0x26514e97 },
+
+ { XFER_PIO_4, 0x06514e21 },
+ { XFER_PIO_3, 0x06514e22 },
+ { XFER_PIO_2, 0x06514e33 },
+ { XFER_PIO_1, 0x06914e43 },
+ { XFER_PIO_0, 0x06914e57 },
+ { 0, 0x06514e57 }
+};
+
+struct chipset_bus_clock_list_entry sixty_six_base_hpt370[] = {
+ { XFER_UDMA_5, 0x14846231 },
+ { XFER_UDMA_4, 0x14886231 },
+ { XFER_UDMA_3, 0x148c6231 },
+ { XFER_UDMA_2, 0x148c6231 },
+ { XFER_UDMA_1, 0x14906231 },
+ { XFER_UDMA_0, 0x14986231 },
+
+ { XFER_MW_DMA_2, 0x26514e21 },
+ { XFER_MW_DMA_1, 0x26514e33 },
+ { XFER_MW_DMA_0, 0x26514e97 },
+
+ { XFER_PIO_4, 0x06514e21 },
+ { XFER_PIO_3, 0x06514e22 },
+ { XFER_PIO_2, 0x06514e33 },
+ { XFER_PIO_1, 0x06914e43 },
+ { XFER_PIO_0, 0x06914e57 },
+ { 0, 0x06514e57 }
+};
+#endif
+
+struct chipset_bus_clock_list_entry fifty_base_hpt370[] = {
+ { 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 },
+ { 0, 0x0ac1f48a }
};

#define HPT366_DEBUG_DRIVE_INFO 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
+
+static struct pci_dev *hpt_devs[HPT366_MAX_DEVS];
+static int n_hpt_devs;
+
+static unsigned int pci_rev_check_hpt3xx(struct pci_dev *dev);
+static unsigned int pci_rev2_check_hpt3xx(struct pci_dev *dev);
+byte hpt366_proc = 0;
+byte hpt363_shared_irq;
+byte hpt363_shared_pin;
+extern char *ide_xfer_verbose (byte xfer_rate);

#if defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS)
static int hpt366_get_info(char *, char **, off_t, int);
extern int (*hpt366_display_info)(char *, char **, off_t, int); /* ide-proc.c */
extern char *ide_media_verbose(ide_drive_t *);
-static struct pci_dev *bmide_dev;
-static struct pci_dev *bmide2_dev;

static int hpt366_get_info (char *buffer, char **addr, off_t offset, int count)
{
- char *p = buffer;
- u32 bibma = bmide_dev->resource[4].start;
- u32 bibma2 = bmide2_dev->resource[4].start;
- char *chipset_names[] = {"HPT366", "HPT366", "HPT368", "HPT370", "HPT370A"};
- u8 c0 = 0, c1 = 0;
- u32 class_rev;
-
- pci_read_config_dword(bmide_dev, PCI_CLASS_REVISION, &class_rev);
- class_rev &= 0xff;
-
- /*
- * at that point bibma+0x2 et bibma+0xa are byte registers
- * to investigate:
- */
- c0 = inb_p((unsigned short)bibma + 0x02);
- if (bmide2_dev)
- c1 = inb_p((unsigned short)bibma2 + 0x02);
-
- p += sprintf(p, "\n %s Chipset.\n", chipset_names[class_rev]);
- p += sprintf(p, "--------------- Primary Channel ---------------- Secondary Channel -------------\n");
- p += sprintf(p, " %sabled %sabled\n",
- (c0&0x80) ? "dis" : " en",
- (c1&0x80) ? "dis" : " en");
- p += sprintf(p, "--------------- drive0 --------- drive1 -------- drive0 ---------- drive1 ------\n");
- p += sprintf(p, "DMA enabled: %s %s %s %s\n",
- (c0&0x20) ? "yes" : "no ", (c0&0x40) ? "yes" : "no ",
- (c1&0x20) ? "yes" : "no ", (c1&0x40) ? "yes" : "no " );
-
- p += sprintf(p, "UDMA\n");
- p += sprintf(p, "DMA\n");
- p += sprintf(p, "PIO\n");
+ char *p = buffer;
+ char *chipset_nums[] = {"366", "366", "368", "370", "370A"};
+ int i;
+
+ p += sprintf(p, "\n "
+ "HighPoint HPT366/368/370\n");
+ for (i = 0; i < n_hpt_devs; i++) {
+ struct pci_dev *dev = hpt_devs[i];
+ unsigned short iobase = dev->resource[4].start;
+ u32 class_rev;
+ u8 c0, c1;
+
+ pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
+ class_rev &= 0xff;
+
+ 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_p(iobase + 0x2);
+ c1 = inb_p(iobase + 0xa);
+ p += sprintf(p, "Enabled: %s"
+ " %s\n",
+ (c0 & 0x80) ? "no" : "yes",
+ (c1 & 0x80) ? "no" : "yes");
+
+ if (pci_rev_check_hpt3xx(dev)) {
+ u8 cbl;
+ cbl = inb_p(iobase + 0x7b);
+ outb_p(cbl | 1, iobase + 0x7b);
+ outb_p(cbl & ~1, iobase + 0x7b);
+ cbl = inb_p(iobase + 0x7a);
+ p += sprintf(p, "Cable: ATA-%d"
+ " ATA-%d\n",
+ (cbl & 0x02) ? 33 : 66,
+ (cbl & 0x01) ? 33 : 66);
+ p += sprintf(p, "\n");
+ }

+ 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 ");
+
+ if (pci_rev2_check_hpt3xx(dev)) {
+ u8 c2, c3;
+ c0 = inb_p(iobase + 0x63);
+ c1 = inb_p(iobase + 0x67);
+ c2 = inb_p(iobase + 0x6b);
+ c3 = inb_p(iobase + 0x6f);
+
+ 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");
+
return p-buffer;/* => must be less than 4k! */
}
#endif /* defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS) */

-byte hpt366_proc = 0;
-
-extern char *ide_xfer_verbose (byte xfer_rate);
-byte hpt363_shared_irq;
-byte hpt363_shared_pin;
-
static unsigned int pci_rev_check_hpt3xx (struct pci_dev *dev)
{
unsigned int class_rev;
@@ -282,16 +467,16 @@
return 0;
}

-static unsigned int pci_bus_clock_list (byte speed, int direction, struct chipset_bus_clock_list_entry * chipset_table)
+static unsigned int pci_bus_clock_list (byte speed, struct chipset_bus_clock_list_entry * chipset_table)
{
for ( ; chipset_table->xfer_speed ; chipset_table++)
if (chipset_table->xfer_speed == speed) {
- return (direction) ? chipset_table->chipset_settings_write : chipset_table->chipset_settings_read;
+ return chipset_table->chipset_settings;
}
- return (direction) ? chipset_table->chipset_settings_write : chipset_table->chipset_settings_read;
+ return chipset_table->chipset_settings;
}

-static void hpt366_tune_chipset (ide_drive_t *drive, byte speed, int direction)
+static void hpt366_tune_chipset (ide_drive_t *drive, byte speed)
{
byte regtime = (drive->select.b.unit & 0x01) ? 0x44 : 0x40;
byte regfast = (HWIF(drive)->channel) ? 0x55 : 0x51;
@@ -304,24 +489,24 @@
byte drive_fast = 0;

/*
- * Disable the "fast interrupt" prediction.
+ * Disable the "fast interrupt" prediction.
*/
pci_read_config_byte(HWIF(drive)->pci_dev, regfast, &drive_fast);
- if (drive_fast & 0x02)
- pci_write_config_byte(HWIF(drive)->pci_dev, regfast, drive_fast & ~0x20);
+ if (drive_fast & 0x80)
+ pci_write_config_byte(HWIF(drive)->pci_dev, regfast, drive_fast & ~0x80);

pci_read_config_dword(HWIF(drive)->pci_dev, regtime, &reg1);
/* detect bus speed by looking at control reg timing: */
- switch((reg1 >> 8) & 7) {
+ switch((reg1 >> 8) & 15) {
case 5:
- reg2 = pci_bus_clock_list(speed, direction, forty_base);
+ reg2 = pci_bus_clock_list(speed, forty_base);
break;
case 9:
- reg2 = pci_bus_clock_list(speed, direction, twenty_five_base);
+ reg2 = pci_bus_clock_list(speed, twenty_five_base);
break;
default:
case 7:
- reg2 = pci_bus_clock_list(speed, direction, thirty_three_base);
+ reg2 = pci_bus_clock_list(speed, thirty_three_base);
break;
}
/*
@@ -337,40 +522,47 @@
pci_write_config_dword(HWIF(drive)->pci_dev, regtime, reg2);
}

-static void hpt370_tune_chipset (ide_drive_t *drive, byte speed, int direction)
+static void hpt370_tune_chipset (ide_drive_t *drive, byte speed)
{
byte regfast = (HWIF(drive)->channel) ? 0x55 : 0x51;
- byte reg5bh = (speed != XFER_UDMA_5) ? 0x22 : (direction) ? 0x20 : 0x22;
- unsigned int list_conf = pci_bus_clock_list(speed, direction, thirty_three_base_hpt370);
+ unsigned int list_conf = 0;
unsigned int drive_conf = 0;
unsigned int conf_mask = (speed >= XFER_MW_DMA_0) ? 0xc0000000 : 0x30070000;
- byte drive_pci = 0;
- byte drive_fast = 0;
+ byte drive_pci = 0x40 + (drive->dn * 4);
+ byte new_fast, drive_fast = 0;
+ struct pci_dev *dev = HWIF(drive)->pci_dev;

- switch (drive->dn) {
- case 0: drive_pci = 0x40; break;
- case 1: drive_pci = 0x44; break;
- case 2: drive_pci = 0x48; break;
- case 3: drive_pci = 0x4c; break;
- default: return;
- }
/*
* Disable the "fast interrupt" prediction.
+ * don't holdoff on interrupts. (== 0x01 despite what the docs say)
*/
- pci_read_config_byte(HWIF(drive)->pci_dev, regfast, &drive_fast);
- if (drive_fast & 0x80)
- pci_write_config_byte(HWIF(drive)->pci_dev, regfast, drive_fast & ~0x80);
+ 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(HWIF(drive)->pci_dev, regfast, new_fast);

- pci_read_config_dword(HWIF(drive)->pci_dev, drive_pci, &drive_conf);
- pci_write_config_byte(HWIF(drive)->pci_dev, 0x5b, reg5bh);
+ list_conf = pci_bus_clock_list(speed,
+ (struct chipset_bus_clock_list_entry *)
+ dev->sysdata);

+ pci_read_config_dword(dev, drive_pci, &drive_conf);
list_conf = (list_conf & ~conf_mask) | (drive_conf & conf_mask);
- /*
- * Disable on-chip PIO FIFO/buffer (to avoid problems handling I/O errors later)
- */
- list_conf &= ~0x80000000;
+
+ if (speed < XFER_MW_DMA_0) {
+ list_conf &= ~0x80000000; /* Disable on-chip PIO FIFO/buffer */
+ }

- pci_write_config_dword(HWIF(drive)->pci_dev, drive_pci, list_conf);
+ pci_write_config_dword(dev, drive_pci, list_conf);
}

static int hpt3xx_tune_chipset (ide_drive_t *drive, byte speed)
@@ -382,9 +574,9 @@
drive->init_speed = speed;

if (pci_rev_check_hpt3xx(HWIF(drive)->pci_dev)) {
- hpt370_tune_chipset(drive, speed, 0);
+ hpt370_tune_chipset(drive, speed);
} else {
- hpt366_tune_chipset(drive, speed, 0);
+ hpt366_tune_chipset(drive, speed);
}
drive->current_speed = speed;
return ((int) ide_config_drive_speed(drive, speed));
@@ -513,9 +705,8 @@

void hpt3xx_intrproc (ide_drive_t *drive)
{
- if (drive->quirk_list) {
+ if (!drive->quirk_list) {
/* drives in the quirk_list may not like intr setups/cleanups */
- } else {
OUT_BYTE((drive)->ctl|2, HWIF(drive)->io_ports[IDE_CONTROL_OFFSET]);
}
}
@@ -541,13 +732,6 @@
}
}

-void hpt370_rw_proc (ide_drive_t *drive, ide_dma_action_t func)
-{
- if ((func != ide_dma_write) || (func != ide_dma_read))
- return;
- hpt370_tune_chipset(drive, drive->current_speed, (func == ide_dma_write));
-}
-
static int config_drive_xfer_rate (ide_drive_t *drive)
{
struct hd_driveid *id = drive->id;
@@ -624,6 +808,14 @@
reg50h, reg52h, reg5ah);
if (reg5ah & 0x10)
pci_write_config_byte(HWIF(drive)->pci_dev, 0x5a, reg5ah & ~0x10);
+ /* how about we flush and reset, mmmkay? */
+ pci_write_config_byte(HWIF(drive)->pci_dev, 0x51, 0x1F);
+
+ break;
+ case ide_dma_begin:
+ case ide_dma_end:
+ /* reset the chips state over and over.. */
+ pci_write_config_byte(HWIF(drive)->pci_dev, 0x51, 0x13);
break;
case ide_dma_timeout:
default:
@@ -634,9 +826,49 @@

int hpt370_dmaproc (ide_dma_action_t func, ide_drive_t *drive)
{
+ ide_hwif_t *hwif = HWIF(drive);
+ unsigned long dma_base = hwif->dma_base;
+ byte regstate = hwif->channel ? 0x54 : 0x50;
+ byte reginfo = hwif->channel ? 0x56 : 0x52;
+ byte dma_stat;
+
switch (func) {
case ide_dma_check:
return config_drive_xfer_rate(drive);
+
+ case ide_dma_end:
+ dma_stat = inb(dma_base + 2);
+ if (dma_stat & 0x01) {
+ udelay(20); /* wait a little */
+ dma_stat = inb(dma_base + 2);
+ }
+ if ((dma_stat & 0x01) == 0)
+ break;
+
+ func = ide_dma_timeout;
+ /* fallthrough */
+
+ case ide_dma_timeout:
+ case ide_dma_lostirq:
+ pci_read_config_byte(hwif->pci_dev, reginfo,
+ &dma_stat);
+ printk("%s: %d bytes in FIFO\n", drive->name,
+ dma_stat);
+ pci_write_config_byte(hwif->pci_dev, regstate, 0x37);
+ udelay(10);
+ dma_stat = inb(dma_base);
+ outb(dma_stat & ~0x1, dma_base); /* stop dma */
+ dma_stat = inb(dma_base + 2);
+ outb(dma_stat | 0x6, dma_base+2); /* clear errors */
+ /* fallthrough */
+
+#ifdef HPT_RESET_STATE_ENGINE
+ case ide_dma_begin:
+#endif
+ pci_write_config_byte(hwif->pci_dev, regstate, 0x37);
+ udelay(10);
+ break;
+
default:
break;
}
@@ -644,6 +876,87 @@
}
#endif /* CONFIG_BLK_DEV_IDEDMA */

+static void __init init_hpt370(struct pci_dev *dev)
+{
+ int adjust, i;
+ u16 freq;
+ u32 pll;
+ byte reg5bh;
+
+ /* 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);
+
+ /* set up the PLL. we need to adjust it so that it's stable.
+ * freq = Tpll * 192 / Tpci */
+ pci_read_config_word(dev, 0x78, &freq);
+ freq &= 0x1FF;
+ if (freq < 0x9c) {
+ pll = F_LOW_PCI_33;
+ dev->sysdata = (void *) thirty_three_base_hpt370;
+ printk("HPT370: using 33MHz PCI clock\n");
+ } else if (freq < 0xb0)
+ pll = F_LOW_PCI_40;
+ else if (freq < 0xc8) {
+ pll = F_LOW_PCI_50;
+ dev->sysdata = (void *) fifty_base_hpt370;
+ printk("HPT370: using 50MHz PCI clock\n");
+ } else {
+ pll = F_LOW_PCI_66;
+ dev->sysdata = (void *) sixty_six_base_hpt370;
+ printk("HPT370: using 66MHz PCI clock\n");
+ }
+
+ /* 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. */
+ if (dev->sysdata)
+ goto init_hpt370_done;
+
+ /* adjust PLL based upon 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, &reg5bh);
+ if (reg5bh & 0x80) {
+ /* spin looking for the clock to destabilize */
+ for (i = 0; i < 0x1000; ++i) {
+ pci_read_config_byte(dev, 0x5b,
+ &reg5bh);
+ 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);
+ dev->sysdata = (void *) fifty_base_hpt370;
+ printk("HPT370: using 50MHz internal PLL\n");
+ goto init_hpt370_done;
+ }
+ }
+pll_recal:
+ if (adjust & 1)
+ pll -= (adjust >> 1);
+ else
+ pll += (adjust >> 1);
+ }
+
+init_hpt370_done:
+ /* reset state engine */
+ pci_write_config_byte(dev, 0x50, 0x37);
+ pci_write_config_byte(dev, 0x54, 0x37);
+ udelay(100);
+}
+
unsigned int __init pci_init_hpt366 (struct pci_dev *dev, const char *name)
{
byte test = 0;
@@ -652,14 +965,8 @@
pci_write_config_byte(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 0
- if (test != 0x08)
- pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 0x08);
-#else
if (test != (L1_CACHE_BYTES / 4))
pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
-#endif

pci_read_config_byte(dev, PCI_LATENCY_TIMER, &test);
if (test != 0x78)
@@ -673,17 +980,15 @@
if (test != 0x08)
pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);

+ if (pci_rev_check_hpt3xx(dev))
+ init_hpt370(dev);
+
+ hpt_devs[n_hpt_devs++] = dev;
#if defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS)
if (!hpt366_proc) {
hpt366_proc = 1;
- bmide_dev = dev;
- if (pci_rev_check_hpt3xx(dev))
- bmide2_dev = dev;
hpt366_display_info = &hpt366_get_info;
}
- if ((hpt366_proc) && ((dev->devfn - bmide_dev->devfn) == 1)) {
- bmide2_dev = dev;
- }
#endif /* DISPLAY_HPT366_TIMINGS && CONFIG_PROC_FS */

return dev->irq;
@@ -692,37 +997,121 @@
unsigned int __init ata66_hpt366 (ide_hwif_t *hwif)
{
byte ata66 = 0;
+ int is33 = 0;

pci_read_config_byte(hwif->pci_dev, 0x5a, &ata66);
+ if (hwif->channel) {
+ is33 = ata66 & 1;
+ } else {
+ is33 = ata66 & 2;
+ }
+
#ifdef DEBUG
printk("HPT366: reg5ah=0x%02x ATA-%s Cable Port%d\n",
- ata66, (ata66 & 0x02) ? "33" : "66",
+ ata66, is33 ? "33" : "66",
PCI_FUNC(hwif->pci_dev->devfn));
#endif /* DEBUG */
- return ((ata66 & 0x02) ? 0 : 1);
+ return (!is33);
+}
+
+/*
+ * 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
+ *
+ * when we turn things back on, we need to re-initialize things.
+ */
+#define TRISTATE_BIT 0x8000
+static int hpt3xx_busproc(ide_hwif_t *hwif, int state)
+{
+ byte tristate, resetmask, bus_reg;
+ u16 tri_reg;
+
+ if (!hwif)
+ return -EINVAL;
+
+ hwif->bus_state = state;
+
+ if (hwif->channel) {
+ /* secondary channel */
+ tristate = 0x56;
+ resetmask = 0x80;
+ } else {
+ /* primary channel */
+ tristate = 0x52;
+ resetmask = 0x40;
+ }
+
+ /* grab status */
+ pci_read_config_word(hwif->pci_dev, tristate, &tri_reg);
+ pci_read_config_byte(hwif->pci_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 */
+ switch (state) {
+ case BUSSTATE_ON:
+ hwif->drives[0].failures = 0;
+ hwif->drives[1].failures = 0;
+ if ((bus_reg & resetmask) == 0)
+ return 0;
+ tri_reg &= ~TRISTATE_BIT;
+ bus_reg &= ~resetmask;
+ break;
+ 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))
+ 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))
+ return 0;
+ tri_reg |= TRISTATE_BIT;
+ bus_reg |= resetmask;
+ break;
+ }
+ pci_write_config_byte(hwif->pci_dev, 0x59, bus_reg);
+ pci_write_config_word(hwif->pci_dev, tristate, tri_reg);
+
+ return 0;
}

void __init ide_init_hpt366 (ide_hwif_t *hwif)
{
+ int hpt_rev;
+
hwif->tuneproc = &hpt3xx_tune_drive;
hwif->speedproc = &hpt3xx_tune_chipset;
hwif->quirkproc = &hpt3xx_quirkproc;
hwif->intrproc = &hpt3xx_intrproc;
hwif->maskproc = &hpt3xx_maskproc;

- if (pci_rev2_check_hpt3xx(hwif->pci_dev)) {
- /* do nothing now but will split device types */
+#ifdef HPT_SERIALIZE_IO
+ /* serialize access to this device */
+ if (hwif->mate)
+ hwif->serialized = hwif->mate->serialized = 1;
+#endif
+
+ hpt_rev = pci_rev_check_hpt3xx(hwif->pci_dev);
+ if (hpt_rev) {
+ /* set up ioctl for power status. note: power affects both
+ * drives on each channel */
+ hwif->busproc = &hpt3xx_busproc;
}

#ifdef CONFIG_BLK_DEV_IDEDMA
if (hwif->dma_base) {
- if (pci_rev_check_hpt3xx(hwif->pci_dev)) {
+ if (hpt_rev) {
byte reg5ah = 0;
pci_read_config_byte(hwif->pci_dev, 0x5a, &reg5ah);
if (reg5ah & 0x10) /* interrupt force enable */
pci_write_config_byte(hwif->pci_dev, 0x5a, reg5ah & ~0x10);
hwif->dmaproc = &hpt370_dmaproc;
- hwif->rwproc = &hpt370_rw_proc;
} else {
hwif->dmaproc = &hpt366_dmaproc;
}
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