aec62xx.c 10.1 KB
Newer Older
Linus Torvalds's avatar
Linus Torvalds committed
1
/*
2
 * linux/drivers/ide/pci/aec62xx.c		Version 0.24	May 24, 2007
Linus Torvalds's avatar
Linus Torvalds committed
3 4
 *
 * Copyright (C) 1999-2002	Andre Hedrick <andre@linux-ide.org>
5
 * Copyright (C) 2007		MontaVista Software, Inc. <source@mvista.com>
Linus Torvalds's avatar
Linus Torvalds committed
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
 *
 */

#include <linux/module.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>

#include <asm/io.h>

struct chipset_bus_clock_list_entry {
	u8 xfer_speed;
	u8 chipset_settings;
	u8 ultra_settings;
};

25
static const struct chipset_bus_clock_list_entry aec6xxx_33_base [] = {
Linus Torvalds's avatar
Linus Torvalds committed
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
	{	XFER_UDMA_6,	0x31,	0x07	},
	{	XFER_UDMA_5,	0x31,	0x06	},
	{	XFER_UDMA_4,	0x31,	0x05	},
	{	XFER_UDMA_3,	0x31,	0x04	},
	{	XFER_UDMA_2,	0x31,	0x03	},
	{	XFER_UDMA_1,	0x31,	0x02	},
	{	XFER_UDMA_0,	0x31,	0x01	},

	{	XFER_MW_DMA_2,	0x31,	0x00	},
	{	XFER_MW_DMA_1,	0x31,	0x00	},
	{	XFER_MW_DMA_0,	0x0a,	0x00	},
	{	XFER_PIO_4,	0x31,	0x00	},
	{	XFER_PIO_3,	0x33,	0x00	},
	{	XFER_PIO_2,	0x08,	0x00	},
	{	XFER_PIO_1,	0x0a,	0x00	},
	{	XFER_PIO_0,	0x00,	0x00	},
	{	0,		0x00,	0x00	}
};

45
static const struct chipset_bus_clock_list_entry aec6xxx_34_base [] = {
Linus Torvalds's avatar
Linus Torvalds committed
46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89
	{	XFER_UDMA_6,	0x41,	0x06	},
	{	XFER_UDMA_5,	0x41,	0x05	},
	{	XFER_UDMA_4,	0x41,	0x04	},
	{	XFER_UDMA_3,	0x41,	0x03	},
	{	XFER_UDMA_2,	0x41,	0x02	},
	{	XFER_UDMA_1,	0x41,	0x01	},
	{	XFER_UDMA_0,	0x41,	0x01	},

	{	XFER_MW_DMA_2,	0x41,	0x00	},
	{	XFER_MW_DMA_1,	0x42,	0x00	},
	{	XFER_MW_DMA_0,	0x7a,	0x00	},
	{	XFER_PIO_4,	0x41,	0x00	},
	{	XFER_PIO_3,	0x43,	0x00	},
	{	XFER_PIO_2,	0x78,	0x00	},
	{	XFER_PIO_1,	0x7a,	0x00	},
	{	XFER_PIO_0,	0x70,	0x00	},
	{	0,		0x00,	0x00	}
};

#define BUSCLOCK(D)	\
	((struct chipset_bus_clock_list_entry *) pci_get_drvdata((D)))


/*
 * TO DO: active tuning and correction of cards without a bios.
 */
static u8 pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * 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;
}

static u8 pci_bus_clock_list_ultra (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
{
	for ( ; chipset_table->xfer_speed ; chipset_table++)
		if (chipset_table->xfer_speed == speed) {
			return chipset_table->ultra_settings;
		}
	return chipset_table->ultra_settings;
}

90
static int aec6210_tune_chipset(ide_drive_t *drive, const u8 speed)
Linus Torvalds's avatar
Linus Torvalds committed
91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116
{
	ide_hwif_t *hwif	= HWIF(drive);
	struct pci_dev *dev	= hwif->pci_dev;
	u16 d_conf		= 0;
	u8 ultra = 0, ultra_conf = 0;
	u8 tmp0 = 0, tmp1 = 0, tmp2 = 0;
	unsigned long flags;

	local_irq_save(flags);
	/* 0x40|(2*drive->dn): Active, 0x41|(2*drive->dn): Recovery */
	pci_read_config_word(dev, 0x40|(2*drive->dn), &d_conf);
	tmp0 = pci_bus_clock_list(speed, BUSCLOCK(dev));
	d_conf = ((tmp0 & 0xf0) << 4) | (tmp0 & 0xf);
	pci_write_config_word(dev, 0x40|(2*drive->dn), d_conf);

	tmp1 = 0x00;
	tmp2 = 0x00;
	pci_read_config_byte(dev, 0x54, &ultra);
	tmp1 = ((0x00 << (2*drive->dn)) | (ultra & ~(3 << (2*drive->dn))));
	ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev));
	tmp2 = ((ultra_conf << (2*drive->dn)) | (tmp1 & ~(3 << (2*drive->dn))));
	pci_write_config_byte(dev, 0x54, tmp2);
	local_irq_restore(flags);
	return(ide_config_drive_speed(drive, speed));
}

117
static int aec6260_tune_chipset(ide_drive_t *drive, const u8 speed)
Linus Torvalds's avatar
Linus Torvalds committed
118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140
{
	ide_hwif_t *hwif	= HWIF(drive);
	struct pci_dev *dev	= hwif->pci_dev;
	u8 unit		= (drive->select.b.unit & 0x01);
	u8 tmp1 = 0, tmp2 = 0;
	u8 ultra = 0, drive_conf = 0, ultra_conf = 0;
	unsigned long flags;

	local_irq_save(flags);
	/* high 4-bits: Active, low 4-bits: Recovery */
	pci_read_config_byte(dev, 0x40|drive->dn, &drive_conf);
	drive_conf = pci_bus_clock_list(speed, BUSCLOCK(dev));
	pci_write_config_byte(dev, 0x40|drive->dn, drive_conf);

	pci_read_config_byte(dev, (0x44|hwif->channel), &ultra);
	tmp1 = ((0x00 << (4*unit)) | (ultra & ~(7 << (4*unit))));
	ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev));
	tmp2 = ((ultra_conf << (4*unit)) | (tmp1 & ~(7 << (4*unit))));
	pci_write_config_byte(dev, (0x44|hwif->channel), tmp2);
	local_irq_restore(flags);
	return(ide_config_drive_speed(drive, speed));
}

141
static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio)
Linus Torvalds's avatar
Linus Torvalds committed
142
{
143
	(void) HWIF(drive)->speedproc(drive, pio + XFER_PIO_0);
Linus Torvalds's avatar
Linus Torvalds committed
144 145 146 147
}

static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive)
{
148
	if (ide_tune_dma(drive))
149
		return 0;
Linus Torvalds's avatar
Linus Torvalds committed
150

151
	if (ide_use_fast_pio(drive))
152
		ide_set_max_pio(drive);
153

154
	return -1;
Linus Torvalds's avatar
Linus Torvalds committed
155 156
}

157
static void aec62xx_dma_lost_irq (ide_drive_t *drive)
Linus Torvalds's avatar
Linus Torvalds committed
158
{
159
	switch (HWIF(drive)->pci_dev->device) {
Linus Torvalds's avatar
Linus Torvalds committed
160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178
		case PCI_DEVICE_ID_ARTOP_ATP860:
		case PCI_DEVICE_ID_ARTOP_ATP860R:
		case PCI_DEVICE_ID_ARTOP_ATP865:
		case PCI_DEVICE_ID_ARTOP_ATP865R:
			printk(" AEC62XX time out ");
		default:
			break;
	}
}

static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name)
{
	int bus_speed = system_bus_clock();

	if (bus_speed <= 33)
		pci_set_drvdata(dev, (void *) aec6xxx_33_base);
	else
		pci_set_drvdata(dev, (void *) aec6xxx_34_base);

179 180 181 182 183 184 185 186 187 188 189 190 191 192 193
	/* These are necessary to get AEC6280 Macintosh cards to work */
	if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) ||
	    (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)) {
		u8 reg49h = 0, reg4ah = 0;
		/* Clear reset and test bits.  */
		pci_read_config_byte(dev, 0x49, &reg49h);
		pci_write_config_byte(dev, 0x49, reg49h & ~0x30);
		/* Enable chip interrupt output.  */
		pci_read_config_byte(dev, 0x4a, &reg4ah);
		pci_write_config_byte(dev, 0x4a, reg4ah & ~0x01);
		/* Enable burst mode. */
		pci_read_config_byte(dev, 0x4a, &reg4ah);
		pci_write_config_byte(dev, 0x4a, reg4ah | 0x80);
	}

Linus Torvalds's avatar
Linus Torvalds committed
194 195 196 197 198
	return dev->irq;
}

static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
{
199 200 201
	struct pci_dev *dev	= hwif->pci_dev;
	u8 reg54 = 0,  mask	= hwif->channel ? 0xf0 : 0x0f;
	unsigned long flags;
202

203
	hwif->set_pio_mode = &aec_set_pio_mode;
Linus Torvalds's avatar
Linus Torvalds committed
204

205 206 207 208 209 210
	if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
		if(hwif->mate)
			hwif->mate->serialized = hwif->serialized = 1;
		hwif->speedproc = &aec6210_tune_chipset;
	} else
		hwif->speedproc = &aec6260_tune_chipset;
Linus Torvalds's avatar
Linus Torvalds committed
211 212

	if (!hwif->dma_base) {
213
		hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
Linus Torvalds's avatar
Linus Torvalds committed
214 215 216
		return;
	}

217
	hwif->ultra_mask = hwif->cds->udma_mask;
Linus Torvalds's avatar
Linus Torvalds committed
218 219 220
	hwif->mwdma_mask = 0x07;

	hwif->ide_dma_check	= &aec62xx_config_drive_xfer_rate;
221
	hwif->dma_lost_irq	= &aec62xx_dma_lost_irq;
222

Linus Torvalds's avatar
Linus Torvalds committed
223 224
	if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF) {
		spin_lock_irqsave(&ide_lock, flags);
225 226
		pci_read_config_byte (dev, 0x54, &reg54);
		pci_write_config_byte(dev, 0x54, (reg54 & ~mask));
Linus Torvalds's avatar
Linus Torvalds committed
227
		spin_unlock_irqrestore(&ide_lock, flags);
228
	} else if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
229 230
		u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01;

Linus Torvalds's avatar
Linus Torvalds committed
231
		pci_read_config_byte(hwif->pci_dev, 0x49, &ata66);
232 233

		hwif->cbl = (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
Linus Torvalds's avatar
Linus Torvalds committed
234 235
	}

236 237 238
	if (!noautodma)
		hwif->autodma = 1;
	hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
Linus Torvalds's avatar
Linus Torvalds committed
239 240 241 242 243 244 245 246 247
}

static int __devinit init_setup_aec62xx(struct pci_dev *dev, ide_pci_device_t *d)
{
	return ide_setup_pci_device(dev, d);
}

static int __devinit init_setup_aec6x80(struct pci_dev *dev, ide_pci_device_t *d)
{
248
	unsigned long dma_base = pci_resource_start(dev, 4);
Linus Torvalds's avatar
Linus Torvalds committed
249

250 251 252 253
	if (inb(dma_base + 2) & 0x10) {
		d->name = (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R) ?
			  "AEC6880R" : "AEC6880";
		d->udma_mask = 0x7f; /* udma0-6 */
Linus Torvalds's avatar
Linus Torvalds committed
254 255 256 257 258 259 260 261 262 263 264 265 266 267
	}

	return ide_setup_pci_device(dev, d);
}

static ide_pci_device_t aec62xx_chipsets[] __devinitdata = {
	{	/* 0 */
		.name		= "AEC6210",
		.init_setup	= init_setup_aec62xx,
		.init_chipset	= init_chipset_aec62xx,
		.init_hwif	= init_hwif_aec62xx,
		.autodma	= AUTODMA,
		.enablebits	= {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
		.bootable	= OFF_BOARD,
Bartlomiej Zolnierkiewicz's avatar
Bartlomiej Zolnierkiewicz committed
268
		.pio_mask	= ATA_PIO4,
269
		.udma_mask	= 0x07, /* udma0-2 */
Linus Torvalds's avatar
Linus Torvalds committed
270 271 272 273 274 275 276
	},{	/* 1 */
		.name		= "AEC6260",
		.init_setup	= init_setup_aec62xx,
		.init_chipset	= init_chipset_aec62xx,
		.init_hwif	= init_hwif_aec62xx,
		.autodma	= NOAUTODMA,
		.bootable	= OFF_BOARD,
Bartlomiej Zolnierkiewicz's avatar
Bartlomiej Zolnierkiewicz committed
277
		.pio_mask	= ATA_PIO4,
278
		.udma_mask	= 0x1f, /* udma0-4 */
Linus Torvalds's avatar
Linus Torvalds committed
279 280 281 282 283 284 285 286
	},{	/* 2 */
		.name		= "AEC6260R",
		.init_setup	= init_setup_aec62xx,
		.init_chipset	= init_chipset_aec62xx,
		.init_hwif	= init_hwif_aec62xx,
		.autodma	= AUTODMA,
		.enablebits	= {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
		.bootable	= NEVER_BOARD,
Bartlomiej Zolnierkiewicz's avatar
Bartlomiej Zolnierkiewicz committed
287
		.pio_mask	= ATA_PIO4,
288
		.udma_mask	= 0x1f, /* udma0-4 */
Linus Torvalds's avatar
Linus Torvalds committed
289
	},{	/* 3 */
290
		.name		= "AEC6280",
Linus Torvalds's avatar
Linus Torvalds committed
291 292 293 294 295
		.init_setup	= init_setup_aec6x80,
		.init_chipset	= init_chipset_aec62xx,
		.init_hwif	= init_hwif_aec62xx,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
Bartlomiej Zolnierkiewicz's avatar
Bartlomiej Zolnierkiewicz committed
296
		.pio_mask	= ATA_PIO4,
297
		.udma_mask	= 0x3f, /* udma0-5 */
Linus Torvalds's avatar
Linus Torvalds committed
298
	},{	/* 4 */
299
		.name		= "AEC6280R",
Linus Torvalds's avatar
Linus Torvalds committed
300 301 302 303 304 305
		.init_setup	= init_setup_aec6x80,
		.init_chipset	= init_chipset_aec62xx,
		.init_hwif	= init_hwif_aec62xx,
		.autodma	= AUTODMA,
		.enablebits	= {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
		.bootable	= OFF_BOARD,
Bartlomiej Zolnierkiewicz's avatar
Bartlomiej Zolnierkiewicz committed
306
		.pio_mask	= ATA_PIO4,
307
		.udma_mask	= 0x3f, /* udma0-5 */
Linus Torvalds's avatar
Linus Torvalds committed
308 309 310 311 312 313 314 315 316 317
	}
};

/**
 *	aec62xx_init_one	-	called when a AEC is found
 *	@dev: the aec62xx device
 *	@id: the matching pci id
 *
 *	Called when the PCI registration layer (or the IDE initialization)
 *	finds a device matching our IDE device tables.
318 319 320
 *
 *	NOTE: since we're going to modify the 'name' field for AEC-6[26]80[R]
 *	chips, pass a local copy of 'struct pci_device_id' down the call chain.
Linus Torvalds's avatar
Linus Torvalds committed
321 322 323 324
 */
 
static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
325
	ide_pci_device_t d = aec62xx_chipsets[id->driver_data];
Linus Torvalds's avatar
Linus Torvalds committed
326

327
	return d.init_setup(dev, &d);
Linus Torvalds's avatar
Linus Torvalds committed
328 329
}

330 331 332 333 334 335
static struct pci_device_id aec62xx_pci_tbl[] = {
	{ PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
	{ PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP860,   PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
	{ PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP860R,  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
	{ PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP865,   PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
	{ PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_ATP865R,  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
Linus Torvalds's avatar
Linus Torvalds committed
336 337 338 339 340 341 342 343 344 345
	{ 0, },
};
MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl);

static struct pci_driver driver = {
	.name		= "AEC62xx_IDE",
	.id_table	= aec62xx_pci_tbl,
	.probe		= aec62xx_init_one,
};

346
static int __init aec62xx_ide_init(void)
Linus Torvalds's avatar
Linus Torvalds committed
347 348 349 350 351 352 353 354 355
{
	return ide_pci_register_driver(&driver);
}

module_init(aec62xx_ide_init);

MODULE_AUTHOR("Andre Hedrick");
MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE");
MODULE_LICENSE("GPL");