Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 508 insertions, 0 deletions

diff --git a/drivers/ide/pci/pdc202xx_new.c b/drivers/ide/pci/pdc202xx_new.c
new file mode 100644
index 00000000000..211641a5439
--- /dev/null
+++ b/drivers/ide/pci/pdc202xx_new.c
@@ -0,0 +1,508 @@
+/*
+ *  Promise TX2/TX4/TX2000/133 IDE driver
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ *
+ *  Split from:
+ *  linux/drivers/ide/pdc202xx.c	Version 0.35	Mar. 30, 2002
+ *  Copyright (C) 1998-2002		Andre Hedrick <andre@linux-ide.org>
+ *  Portions Copyright (C) 1999 Promise Technology, Inc.
+ *  Author: Frank Tiernan (frankt@promise.com)
+ *  Released under terms of General Public License
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/ide.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#ifdef CONFIG_PPC_PMAC
+#include <asm/prom.h>
+#include <asm/pci-bridge.h>
+#endif
+
+#define PDC202_DEBUG_CABLE	0
+
+const static char *pdc_quirk_drives[] = {
+	"QUANTUM FIREBALLlct08 08",
+	"QUANTUM FIREBALLP KA6.4",
+	"QUANTUM FIREBALLP KA9.1",
+	"QUANTUM FIREBALLP LM20.4",
+	"QUANTUM FIREBALLP KX13.6",
+	"QUANTUM FIREBALLP KX20.5",
+	"QUANTUM FIREBALLP KX27.3",
+	"QUANTUM FIREBALLP LM20.5",
+	NULL
+};
+
+#define set_2regs(a, b)					\
+	do {						\
+		hwif->OUTB((a + adj), indexreg);	\
+		hwif->OUTB(b, datareg);			\
+	} while(0)
+
+#define set_ultra(a, b, c)				\
+	do {						\
+		set_2regs(0x10,(a));			\
+		set_2regs(0x11,(b));			\
+		set_2regs(0x12,(c));			\
+	} while(0)
+
+#define set_ata2(a, b)					\
+	do {						\
+		set_2regs(0x0e,(a));			\
+		set_2regs(0x0f,(b));			\
+	} while(0)
+
+#define set_pio(a, b, c)				\
+	do { 						\
+		set_2regs(0x0c,(a));			\
+		set_2regs(0x0d,(b));			\
+		set_2regs(0x13,(c));			\
+	} while(0)
+
+static u8 pdcnew_ratemask (ide_drive_t *drive)
+{
+	u8 mode;
+
+	switch(HWIF(drive)->pci_dev->device) {
+		case PCI_DEVICE_ID_PROMISE_20277:
+		case PCI_DEVICE_ID_PROMISE_20276:
+		case PCI_DEVICE_ID_PROMISE_20275:
+		case PCI_DEVICE_ID_PROMISE_20271:
+		case PCI_DEVICE_ID_PROMISE_20269:
+			mode = 4;
+			break;
+		case PCI_DEVICE_ID_PROMISE_20270:
+		case PCI_DEVICE_ID_PROMISE_20268:
+			mode = 3;
+			break;
+		default:
+			return 0;
+	}
+	if (!eighty_ninty_three(drive))
+		mode = min(mode, (u8)1);
+	return mode;
+}
+
+static int check_in_drive_lists (ide_drive_t *drive, const char **list)
+{
+	struct hd_driveid *id = drive->id;
+
+	if (pdc_quirk_drives == list) {
+		while (*list) {
+			if (strstr(id->model, *list++)) {
+				return 2;
+			}
+		}
+	} else {
+		while (*list) {
+			if (!strcmp(*list++,id->model)) {
+				return 1;
+			}
+		}
+	}
+	return 0;
+}
+
+static int pdcnew_new_tune_chipset (ide_drive_t *drive, u8 xferspeed)
+{
+	ide_hwif_t *hwif	= HWIF(drive);
+	unsigned long indexreg	= hwif->dma_vendor1;
+	unsigned long datareg	= hwif->dma_vendor3;
+	u8 thold		= 0x10;
+	u8 adj			= (drive->dn%2) ? 0x08 : 0x00;
+	u8 speed		= ide_rate_filter(pdcnew_ratemask(drive), xferspeed);
+
+	if (speed == XFER_UDMA_2) {
+		hwif->OUTB((thold + adj), indexreg);
+		hwif->OUTB((hwif->INB(datareg) & 0x7f), datareg);
+	}
+
+	switch (speed) {
+		case XFER_UDMA_7:
+			speed = XFER_UDMA_6;
+		case XFER_UDMA_6:	set_ultra(0x1a, 0x01, 0xcb); break;
+		case XFER_UDMA_5:	set_ultra(0x1a, 0x02, 0xcb); break;
+		case XFER_UDMA_4:	set_ultra(0x1a, 0x03, 0xcd); break;
+		case XFER_UDMA_3:	set_ultra(0x1a, 0x05, 0xcd); break;
+		case XFER_UDMA_2:	set_ultra(0x2a, 0x07, 0xcd); break;
+		case XFER_UDMA_1:	set_ultra(0x3a, 0x0a, 0xd0); break;
+		case XFER_UDMA_0:	set_ultra(0x4a, 0x0f, 0xd5); break;
+		case XFER_MW_DMA_2:	set_ata2(0x69, 0x25); break;
+		case XFER_MW_DMA_1:	set_ata2(0x6b, 0x27); break;
+		case XFER_MW_DMA_0:	set_ata2(0xdf, 0x5f); break;
+		case XFER_PIO_4:	set_pio(0x23, 0x09, 0x25); break;
+		case XFER_PIO_3:	set_pio(0x27, 0x0d, 0x35); break;
+		case XFER_PIO_2:	set_pio(0x23, 0x26, 0x64); break;
+		case XFER_PIO_1:	set_pio(0x46, 0x29, 0xa4); break;
+		case XFER_PIO_0:	set_pio(0xfb, 0x2b, 0xac); break;
+		default:
+			;
+	}
+
+	return (ide_config_drive_speed(drive, speed));
+}
+
+/*   0    1    2    3    4    5    6   7   8
+ * 960, 480, 390, 300, 240, 180, 120, 90, 60
+ *           180, 150, 120,  90,  60
+ * DMA_Speed
+ * 180, 120,  90,  90,  90,  60,  30
+ *  11,   5,   4,   3,   2,   1,   0
+ */
+static void pdcnew_tune_drive(ide_drive_t *drive, u8 pio)
+{
+	u8 speed;
+
+	if (pio == 5) pio = 4;
+	speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, pio, NULL);
+
+	(void)pdcnew_new_tune_chipset(drive, speed);
+}
+
+static u8 pdcnew_new_cable_detect (ide_hwif_t *hwif)
+{
+	hwif->OUTB(0x0b, hwif->dma_vendor1);
+	return ((u8)((hwif->INB(hwif->dma_vendor3) & 0x04)));
+}
+static int config_chipset_for_dma (ide_drive_t *drive)
+{
+	struct hd_driveid *id	= drive->id;
+	ide_hwif_t *hwif	= HWIF(drive);
+	u8 speed		= -1;
+	u8 cable;
+
+	u8 ultra_66		= ((id->dma_ultra & 0x0010) ||
+				   (id->dma_ultra & 0x0008)) ? 1 : 0;
+
+	cable = pdcnew_new_cable_detect(hwif);
+
+	if (ultra_66 && cable) {
+		printk(KERN_WARNING "Warning: %s channel requires an 80-pin cable for operation.\n", hwif->channel ? "Secondary":"Primary");
+		printk(KERN_WARNING "%s reduced to Ultra33 mode.\n", drive->name);
+	}
+
+	if (drive->media != ide_disk)
+		return 0;
+	if (id->capability & 4) {	/* IORDY_EN & PREFETCH_EN */
+		hwif->OUTB((0x13 + ((drive->dn%2) ? 0x08 : 0x00)), hwif->dma_vendor1);
+		hwif->OUTB((hwif->INB(hwif->dma_vendor3)|0x03), hwif->dma_vendor3);
+	}
+
+	speed = ide_dma_speed(drive, pdcnew_ratemask(drive));
+
+	if (!(speed)) {
+		hwif->tuneproc(drive, 5);
+		return 0;
+	}
+
+	(void) hwif->speedproc(drive, speed);
+	return ide_dma_enable(drive);
+}
+
+static int pdcnew_config_drive_xfer_rate (ide_drive_t *drive)
+{
+	ide_hwif_t *hwif	= HWIF(drive);
+	struct hd_driveid *id	= drive->id;
+
+	drive->init_speed = 0;
+
+	if (id && (id->capability & 1) && drive->autodma) {
+
+		if (ide_use_dma(drive)) {
+			if (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:
+		hwif->tuneproc(drive, 5);
+		return hwif->ide_dma_off_quietly(drive);
+	}
+	/* IORDY not supported */
+	return 0;
+}
+
+static int pdcnew_quirkproc (ide_drive_t *drive)
+{
+	return ((int) check_in_drive_lists(drive, pdc_quirk_drives));
+}
+
+static int pdcnew_ide_dma_lostirq(ide_drive_t *drive)
+{
+	if (HWIF(drive)->resetproc != NULL)
+		HWIF(drive)->resetproc(drive);
+	return __ide_dma_lostirq(drive);
+}
+
+static int pdcnew_ide_dma_timeout(ide_drive_t *drive)
+{
+	if (HWIF(drive)->resetproc != NULL)
+		HWIF(drive)->resetproc(drive);
+	return __ide_dma_timeout(drive);
+}
+
+static void pdcnew_new_reset (ide_drive_t *drive)
+{
+	/*
+	 * Deleted this because it is redundant from the caller.
+	 */
+	printk(KERN_WARNING "PDC202XX: %s channel reset.\n",
+		HWIF(drive)->channel ? "Secondary" : "Primary");
+}
+
+#ifdef CONFIG_PPC_PMAC
+static void __devinit apple_kiwi_init(struct pci_dev *pdev)
+{
+	struct device_node *np = pci_device_to_OF_node(pdev);
+	unsigned int class_rev = 0;
+	void __iomem *mmio;
+	u8 conf;
+
+	if (np == NULL || !device_is_compatible(np, "kiwi-root"))
+		return;
+
+	pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
+	class_rev &= 0xff;
+
+	if (class_rev >= 0x03) {
+		/* Setup chip magic config stuff (from darwin) */
+		pci_read_config_byte(pdev, 0x40, &conf);
+		pci_write_config_byte(pdev, 0x40, conf | 0x01);
+	}
+	mmio = ioremap(pci_resource_start(pdev, 5),
+				      pci_resource_len(pdev, 5));
+
+	/* Setup some PLL stuffs */
+	switch (pdev->device) {
+	case PCI_DEVICE_ID_PROMISE_20270:
+		writew(0x0d2b, mmio + 0x1202);
+		mdelay(30);
+		break;
+	case PCI_DEVICE_ID_PROMISE_20271:
+		writew(0x0826, mmio + 0x1202);
+		mdelay(30);
+		break;
+	}
+
+	iounmap(mmio);
+}
+#endif /* CONFIG_PPC_PMAC */
+
+static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev, const char *name)
+{
+	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);
+		printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n",
+			name, dev->resource[PCI_ROM_RESOURCE].start);
+	}
+
+#ifdef CONFIG_PPC_PMAC
+	apple_kiwi_init(dev);
+#endif
+
+	return dev->irq;
+}
+
+static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif)
+{
+	hwif->autodma = 0;
+
+	hwif->tuneproc  = &pdcnew_tune_drive;
+	hwif->quirkproc = &pdcnew_quirkproc;
+	hwif->speedproc = &pdcnew_new_tune_chipset;
+	hwif->resetproc = &pdcnew_new_reset;
+
+	hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
+
+	hwif->ultra_mask = 0x7f;
+	hwif->mwdma_mask = 0x07;
+
+	hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate;
+	hwif->ide_dma_lostirq = &pdcnew_ide_dma_lostirq;
+	hwif->ide_dma_timeout = &pdcnew_ide_dma_timeout;
+	if (!(hwif->udma_four))
+		hwif->udma_four = (pdcnew_new_cable_detect(hwif)) ? 0 : 1;
+	if (!noautodma)
+		hwif->autodma = 1;
+	hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
+#if PDC202_DEBUG_CABLE
+	printk(KERN_DEBUG "%s: %s-pin cable\n",
+		hwif->name, hwif->udma_four ? "80" : "40");
+#endif /* PDC202_DEBUG_CABLE */
+}
+
+static int __devinit init_setup_pdcnew(struct pci_dev *dev, ide_pci_device_t *d)
+{
+	return ide_setup_pci_device(dev, d);
+}
+
+static int __devinit init_setup_pdc20270(struct pci_dev *dev,
+					 ide_pci_device_t *d)
+{
+	struct pci_dev *findev = NULL;
+
+	if ((dev->bus->self &&
+	     dev->bus->self->vendor == PCI_VENDOR_ID_DEC) &&
+	    (dev->bus->self->device == PCI_DEVICE_ID_DEC_21150)) {
+		if (PCI_SLOT(dev->devfn) & 2)
+			return -ENODEV;
+		d->extra = 0;
+		while ((findev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
+			if ((findev->vendor == dev->vendor) &&
+			    (findev->device == dev->device) &&
+			    (PCI_SLOT(findev->devfn) & 2)) {
+				if (findev->irq != dev->irq) {
+					findev->irq = dev->irq;
+				}
+				return ide_setup_pci_devices(dev, findev, d);
+			}
+		}
+	}
+	return ide_setup_pci_device(dev, d);
+}
+
+static int __devinit init_setup_pdc20276(struct pci_dev *dev,
+					 ide_pci_device_t *d)
+{
+	if ((dev->bus->self) &&
+	    (dev->bus->self->vendor == PCI_VENDOR_ID_INTEL) &&
+	    ((dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960) ||
+	     (dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960RM))) {
+		printk(KERN_INFO "ide: Skipping Promise PDC20276 "
+			"attached to I2O RAID controller.\n");
+		return -ENODEV;
+	}
+	return ide_setup_pci_device(dev, d);
+}
+
+static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
+	{	/* 0 */
+		.name		= "PDC20268",
+		.init_setup	= init_setup_pdcnew,
+		.init_chipset	= init_chipset_pdcnew,
+		.init_hwif	= init_hwif_pdc202new,
+		.channels	= 2,
+		.autodma	= AUTODMA,
+		.bootable	= OFF_BOARD,
+	},{	/* 1 */
+		.name		= "PDC20269",
+		.init_setup	= init_setup_pdcnew,
+		.init_chipset	= init_chipset_pdcnew,
+		.init_hwif	= init_hwif_pdc202new,
+		.channels	= 2,
+		.autodma	= AUTODMA,
+		.bootable	= OFF_BOARD,
+	},{	/* 2 */
+		.name		= "PDC20270",
+		.init_setup	= init_setup_pdc20270,
+		.init_chipset	= init_chipset_pdcnew,
+		.init_hwif	= init_hwif_pdc202new,
+		.channels	= 2,
+		.autodma	= AUTODMA,
+#ifndef CONFIG_PDC202XX_FORCE
+		.enablebits	= {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
+#endif
+		.bootable	= OFF_BOARD,
+	},{	/* 3 */
+		.name		= "PDC20271",
+		.init_setup	= init_setup_pdcnew,
+		.init_chipset	= init_chipset_pdcnew,
+		.init_hwif	= init_hwif_pdc202new,
+		.channels	= 2,
+		.autodma	= AUTODMA,
+		.bootable	= OFF_BOARD,
+	},{	/* 4 */
+		.name		= "PDC20275",
+		.init_setup	= init_setup_pdcnew,
+		.init_chipset	= init_chipset_pdcnew,
+		.init_hwif	= init_hwif_pdc202new,
+		.channels	= 2,
+		.autodma	= AUTODMA,
+		.bootable	= OFF_BOARD,
+	},{	/* 5 */
+		.name		= "PDC20276",
+		.init_setup	= init_setup_pdc20276,
+		.init_chipset	= init_chipset_pdcnew,
+		.init_hwif	= init_hwif_pdc202new,
+		.channels	= 2,
+		.autodma	= AUTODMA,
+#ifndef CONFIG_PDC202XX_FORCE
+		.enablebits	= {{0x50,0x02,0x02}, {0x50,0x04,0x04}},
+#endif
+		.bootable	= OFF_BOARD,
+	},{	/* 6 */
+		.name		= "PDC20277",
+		.init_setup	= init_setup_pdcnew,
+		.init_chipset	= init_chipset_pdcnew,
+		.init_hwif	= init_hwif_pdc202new,
+		.channels	= 2,
+		.autodma	= AUTODMA,
+		.bootable	= OFF_BOARD,
+	}
+};
+
+/**
+ *	pdc202new_init_one	-	called when a pdc202xx is found
+ *	@dev: the pdc202new device
+ *	@id: the matching pci id
+ *
+ *	Called when the PCI registration layer (or the IDE initialization)
+ *	finds a device matching our IDE device tables.
+ */
+ 
+static int __devinit pdc202new_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+{
+	ide_pci_device_t *d = &pdcnew_chipsets[id->driver_data];
+
+	return d->init_setup(dev, d);
+}
+
+static struct pci_device_id pdc202new_pci_tbl[] = {
+	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20269, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20270, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
+	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20271, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
+	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20275, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
+	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20276, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
+	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20277, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
+	{ 0, },
+};
+MODULE_DEVICE_TABLE(pci, pdc202new_pci_tbl);
+
+static struct pci_driver driver = {
+	.name		= "Promise_IDE",
+	.id_table	= pdc202new_pci_tbl,
+	.probe		= pdc202new_init_one,
+};
+
+static int pdc202new_ide_init(void)
+{
+	return ide_pci_register_driver(&driver);
+}
+
+module_init(pdc202new_ide_init);
+
+MODULE_AUTHOR("Andre Hedrick, Frank Tiernan");
+MODULE_DESCRIPTION("PCI driver module for Promise PDC20268 and higher");
+MODULE_LICENSE("GPL");