Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Libata driver for the highpoint 37x and 30x UDMA66 ATA controllers. |
| 3 | * |
| 4 | * This driver is heavily based upon: |
| 5 | * |
| 6 | * linux/drivers/ide/pci/hpt366.c Version 0.36 April 25, 2003 |
| 7 | * |
| 8 | * Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org> |
| 9 | * Portions Copyright (C) 2001 Sun Microsystems, Inc. |
| 10 | * Portions Copyright (C) 2003 Red Hat Inc |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 11 | * Portions Copyright (C) 2005-2006 MontaVista Software, Inc. |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 12 | * |
| 13 | * TODO |
| 14 | * PLL mode |
| 15 | * Look into engine reset on timeout errors. Should not be |
| 16 | * required. |
| 17 | */ |
| 18 | |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/module.h> |
| 21 | #include <linux/pci.h> |
| 22 | #include <linux/init.h> |
| 23 | #include <linux/blkdev.h> |
| 24 | #include <linux/delay.h> |
| 25 | #include <scsi/scsi_host.h> |
| 26 | #include <linux/libata.h> |
| 27 | |
| 28 | #define DRV_NAME "pata_hpt37x" |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 29 | #define DRV_VERSION "0.6.4" |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 30 | |
| 31 | struct hpt_clock { |
| 32 | u8 xfer_speed; |
| 33 | u32 timing; |
| 34 | }; |
| 35 | |
| 36 | struct hpt_chip { |
| 37 | const char *name; |
| 38 | unsigned int base; |
| 39 | struct hpt_clock const *clocks[4]; |
| 40 | }; |
| 41 | |
| 42 | /* key for bus clock timings |
| 43 | * bit |
| 44 | * 0:3 data_high_time. inactive time of DIOW_/DIOR_ for PIO and MW |
| 45 | * DMA. cycles = value + 1 |
| 46 | * 4:8 data_low_time. active time of DIOW_/DIOR_ for PIO and MW |
| 47 | * DMA. cycles = value + 1 |
| 48 | * 9:12 cmd_high_time. inactive time of DIOW_/DIOR_ during task file |
| 49 | * register access. |
| 50 | * 13:17 cmd_low_time. active time of DIOW_/DIOR_ during task file |
| 51 | * register access. |
| 52 | * 18:21 udma_cycle_time. clock freq and clock cycles for UDMA xfer. |
| 53 | * during task file register access. |
| 54 | * 22:24 pre_high_time. time to initialize 1st cycle for PIO and MW DMA |
| 55 | * xfer. |
| 56 | * 25:27 cmd_pre_high_time. time to initialize 1st PIO cycle for task |
| 57 | * register access. |
| 58 | * 28 UDMA enable |
| 59 | * 29 DMA enable |
| 60 | * 30 PIO_MST enable. if set, the chip is in bus master mode during |
| 61 | * PIO. |
| 62 | * 31 FIFO enable. |
| 63 | */ |
| 64 | |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 65 | static struct hpt_clock hpt37x_timings_33[] = { |
| 66 | { XFER_UDMA_6, 0x12446231 }, /* 0x12646231 ?? */ |
| 67 | { XFER_UDMA_5, 0x12446231 }, |
| 68 | { XFER_UDMA_4, 0x12446231 }, |
| 69 | { XFER_UDMA_3, 0x126c6231 }, |
| 70 | { XFER_UDMA_2, 0x12486231 }, |
| 71 | { XFER_UDMA_1, 0x124c6233 }, |
| 72 | { XFER_UDMA_0, 0x12506297 }, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 73 | |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 74 | { XFER_MW_DMA_2, 0x22406c31 }, |
| 75 | { XFER_MW_DMA_1, 0x22406c33 }, |
| 76 | { XFER_MW_DMA_0, 0x22406c97 }, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 77 | |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 78 | { XFER_PIO_4, 0x06414e31 }, |
| 79 | { XFER_PIO_3, 0x06414e42 }, |
| 80 | { XFER_PIO_2, 0x06414e53 }, |
| 81 | { XFER_PIO_1, 0x06814e93 }, |
| 82 | { XFER_PIO_0, 0x06814ea7 } |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 83 | }; |
| 84 | |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 85 | static struct hpt_clock hpt37x_timings_50[] = { |
| 86 | { XFER_UDMA_6, 0x12848242 }, |
| 87 | { XFER_UDMA_5, 0x12848242 }, |
| 88 | { XFER_UDMA_4, 0x12ac8242 }, |
| 89 | { XFER_UDMA_3, 0x128c8242 }, |
| 90 | { XFER_UDMA_2, 0x120c8242 }, |
| 91 | { XFER_UDMA_1, 0x12148254 }, |
| 92 | { XFER_UDMA_0, 0x121882ea }, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 93 | |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 94 | { XFER_MW_DMA_2, 0x22808242 }, |
| 95 | { XFER_MW_DMA_1, 0x22808254 }, |
| 96 | { XFER_MW_DMA_0, 0x228082ea }, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 97 | |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 98 | { XFER_PIO_4, 0x0a81f442 }, |
| 99 | { XFER_PIO_3, 0x0a81f443 }, |
| 100 | { XFER_PIO_2, 0x0a81f454 }, |
| 101 | { XFER_PIO_1, 0x0ac1f465 }, |
| 102 | { XFER_PIO_0, 0x0ac1f48a } |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 103 | }; |
| 104 | |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 105 | static struct hpt_clock hpt37x_timings_66[] = { |
| 106 | { XFER_UDMA_6, 0x1c869c62 }, |
| 107 | { XFER_UDMA_5, 0x1cae9c62 }, /* 0x1c8a9c62 */ |
| 108 | { XFER_UDMA_4, 0x1c8a9c62 }, |
| 109 | { XFER_UDMA_3, 0x1c8e9c62 }, |
| 110 | { XFER_UDMA_2, 0x1c929c62 }, |
| 111 | { XFER_UDMA_1, 0x1c9a9c62 }, |
| 112 | { XFER_UDMA_0, 0x1c829c62 }, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 113 | |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 114 | { XFER_MW_DMA_2, 0x2c829c62 }, |
| 115 | { XFER_MW_DMA_1, 0x2c829c66 }, |
| 116 | { XFER_MW_DMA_0, 0x2c829d2e }, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 117 | |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 118 | { XFER_PIO_4, 0x0c829c62 }, |
| 119 | { XFER_PIO_3, 0x0c829c84 }, |
| 120 | { XFER_PIO_2, 0x0c829ca6 }, |
| 121 | { XFER_PIO_1, 0x0d029d26 }, |
| 122 | { XFER_PIO_0, 0x0d029d5e } |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 123 | }; |
| 124 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 125 | |
| 126 | static const struct hpt_chip hpt370 = { |
| 127 | "HPT370", |
| 128 | 48, |
| 129 | { |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 130 | hpt37x_timings_33, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 131 | NULL, |
| 132 | NULL, |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 133 | hpt37x_timings_66 |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 134 | } |
| 135 | }; |
| 136 | |
| 137 | static const struct hpt_chip hpt370a = { |
| 138 | "HPT370A", |
| 139 | 48, |
| 140 | { |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 141 | hpt37x_timings_33, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 142 | NULL, |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 143 | hpt37x_timings_50, |
| 144 | hpt37x_timings_66 |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 145 | } |
| 146 | }; |
| 147 | |
| 148 | static const struct hpt_chip hpt372 = { |
| 149 | "HPT372", |
| 150 | 55, |
| 151 | { |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 152 | hpt37x_timings_33, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 153 | NULL, |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 154 | hpt37x_timings_50, |
| 155 | hpt37x_timings_66 |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 156 | } |
| 157 | }; |
| 158 | |
| 159 | static const struct hpt_chip hpt302 = { |
| 160 | "HPT302", |
| 161 | 66, |
| 162 | { |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 163 | hpt37x_timings_33, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 164 | NULL, |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 165 | hpt37x_timings_50, |
| 166 | hpt37x_timings_66 |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 167 | } |
| 168 | }; |
| 169 | |
| 170 | static const struct hpt_chip hpt371 = { |
| 171 | "HPT371", |
| 172 | 66, |
| 173 | { |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 174 | hpt37x_timings_33, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 175 | NULL, |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 176 | hpt37x_timings_50, |
| 177 | hpt37x_timings_66 |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 178 | } |
| 179 | }; |
| 180 | |
| 181 | static const struct hpt_chip hpt372a = { |
| 182 | "HPT372A", |
| 183 | 66, |
| 184 | { |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 185 | hpt37x_timings_33, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 186 | NULL, |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 187 | hpt37x_timings_50, |
| 188 | hpt37x_timings_66 |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 189 | } |
| 190 | }; |
| 191 | |
| 192 | static const struct hpt_chip hpt374 = { |
| 193 | "HPT374", |
| 194 | 48, |
| 195 | { |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 196 | hpt37x_timings_33, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 197 | NULL, |
| 198 | NULL, |
| 199 | NULL |
| 200 | } |
| 201 | }; |
| 202 | |
| 203 | /** |
| 204 | * hpt37x_find_mode - reset the hpt37x bus |
| 205 | * @ap: ATA port |
| 206 | * @speed: transfer mode |
| 207 | * |
| 208 | * Return the 32bit register programming information for this channel |
| 209 | * that matches the speed provided. |
| 210 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 211 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 212 | static u32 hpt37x_find_mode(struct ata_port *ap, int speed) |
| 213 | { |
| 214 | struct hpt_clock *clocks = ap->host->private_data; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 215 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 216 | while(clocks->xfer_speed) { |
| 217 | if (clocks->xfer_speed == speed) |
| 218 | return clocks->timing; |
| 219 | clocks++; |
| 220 | } |
| 221 | BUG(); |
| 222 | return 0xffffffffU; /* silence compiler warning */ |
| 223 | } |
| 224 | |
| 225 | static int hpt_dma_blacklisted(const struct ata_device *dev, char *modestr, const char *list[]) |
| 226 | { |
Tejun Heo | 8bfa79f | 2007-01-02 20:19:40 +0900 | [diff] [blame] | 227 | unsigned char model_num[ATA_ID_PROD_LEN + 1]; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 228 | int i = 0; |
| 229 | |
Tejun Heo | 8bfa79f | 2007-01-02 20:19:40 +0900 | [diff] [blame] | 230 | ata_id_c_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num)); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 231 | |
Tejun Heo | 8bfa79f | 2007-01-02 20:19:40 +0900 | [diff] [blame] | 232 | while (list[i] != NULL) { |
| 233 | if (!strcmp(list[i], model_num)) { |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 234 | printk(KERN_WARNING DRV_NAME ": %s is not supported for %s.\n", |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 235 | modestr, list[i]); |
| 236 | return 1; |
| 237 | } |
| 238 | i++; |
| 239 | } |
| 240 | return 0; |
| 241 | } |
| 242 | |
| 243 | static const char *bad_ata33[] = { |
| 244 | "Maxtor 92720U8", "Maxtor 92040U6", "Maxtor 91360U4", "Maxtor 91020U3", "Maxtor 90845U3", "Maxtor 90650U2", |
| 245 | "Maxtor 91360D8", "Maxtor 91190D7", "Maxtor 91020D6", "Maxtor 90845D5", "Maxtor 90680D4", "Maxtor 90510D3", "Maxtor 90340D2", |
| 246 | "Maxtor 91152D8", "Maxtor 91008D7", "Maxtor 90845D6", "Maxtor 90840D6", "Maxtor 90720D5", "Maxtor 90648D5", "Maxtor 90576D4", |
| 247 | "Maxtor 90510D4", |
| 248 | "Maxtor 90432D3", "Maxtor 90288D2", "Maxtor 90256D2", |
| 249 | "Maxtor 91000D8", "Maxtor 90910D8", "Maxtor 90875D7", "Maxtor 90840D7", "Maxtor 90750D6", "Maxtor 90625D5", "Maxtor 90500D4", |
| 250 | "Maxtor 91728D8", "Maxtor 91512D7", "Maxtor 91303D6", "Maxtor 91080D5", "Maxtor 90845D4", "Maxtor 90680D4", "Maxtor 90648D3", "Maxtor 90432D2", |
| 251 | NULL |
| 252 | }; |
| 253 | |
| 254 | static const char *bad_ata100_5[] = { |
| 255 | "IBM-DTLA-307075", |
| 256 | "IBM-DTLA-307060", |
| 257 | "IBM-DTLA-307045", |
| 258 | "IBM-DTLA-307030", |
| 259 | "IBM-DTLA-307020", |
| 260 | "IBM-DTLA-307015", |
| 261 | "IBM-DTLA-305040", |
| 262 | "IBM-DTLA-305030", |
| 263 | "IBM-DTLA-305020", |
| 264 | "IC35L010AVER07-0", |
| 265 | "IC35L020AVER07-0", |
| 266 | "IC35L030AVER07-0", |
| 267 | "IC35L040AVER07-0", |
| 268 | "IC35L060AVER07-0", |
| 269 | "WDC AC310200R", |
| 270 | NULL |
| 271 | }; |
| 272 | |
| 273 | /** |
| 274 | * hpt370_filter - mode selection filter |
| 275 | * @ap: ATA interface |
| 276 | * @adev: ATA device |
| 277 | * |
| 278 | * Block UDMA on devices that cause trouble with this controller. |
| 279 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 280 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 281 | static unsigned long hpt370_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long mask) |
| 282 | { |
Alan | 6929da4 | 2007-01-05 16:37:01 -0800 | [diff] [blame] | 283 | if (adev->class == ATA_DEV_ATA) { |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 284 | if (hpt_dma_blacklisted(adev, "UDMA", bad_ata33)) |
| 285 | mask &= ~ATA_MASK_UDMA; |
| 286 | if (hpt_dma_blacklisted(adev, "UDMA100", bad_ata100_5)) |
| 287 | mask &= ~(0x1F << ATA_SHIFT_UDMA); |
| 288 | } |
| 289 | return ata_pci_default_filter(ap, adev, mask); |
| 290 | } |
| 291 | |
| 292 | /** |
| 293 | * hpt370a_filter - mode selection filter |
| 294 | * @ap: ATA interface |
| 295 | * @adev: ATA device |
| 296 | * |
| 297 | * Block UDMA on devices that cause trouble with this controller. |
| 298 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 299 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 300 | static unsigned long hpt370a_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long mask) |
| 301 | { |
| 302 | if (adev->class != ATA_DEV_ATA) { |
| 303 | if (hpt_dma_blacklisted(adev, "UDMA100", bad_ata100_5)) |
| 304 | mask &= ~ (0x1F << ATA_SHIFT_UDMA); |
| 305 | } |
| 306 | return ata_pci_default_filter(ap, adev, mask); |
| 307 | } |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 308 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 309 | /** |
| 310 | * hpt37x_pre_reset - reset the hpt37x bus |
| 311 | * @ap: ATA port to reset |
| 312 | * |
| 313 | * Perform the initial reset handling for the 370/372 and 374 func 0 |
| 314 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 315 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 316 | static int hpt37x_pre_reset(struct ata_port *ap) |
| 317 | { |
| 318 | u8 scr2, ata66; |
| 319 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
Alan Cox | b5bf24b | 2006-11-08 16:18:26 +0000 | [diff] [blame] | 320 | static const struct pci_bits hpt37x_enable_bits[] = { |
| 321 | { 0x50, 1, 0x04, 0x04 }, |
| 322 | { 0x54, 1, 0x04, 0x04 } |
| 323 | }; |
| 324 | if (!pci_test_config_bits(pdev, &hpt37x_enable_bits[ap->port_no])) |
| 325 | return -ENOENT; |
Jeff Garzik | f20b16f | 2006-12-11 11:14:06 -0500 | [diff] [blame] | 326 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 327 | pci_read_config_byte(pdev, 0x5B, &scr2); |
| 328 | pci_write_config_byte(pdev, 0x5B, scr2 & ~0x01); |
| 329 | /* Cable register now active */ |
| 330 | pci_read_config_byte(pdev, 0x5A, &ata66); |
| 331 | /* Restore state */ |
| 332 | pci_write_config_byte(pdev, 0x5B, scr2); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 333 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 334 | if (ata66 & (1 << ap->port_no)) |
| 335 | ap->cbl = ATA_CBL_PATA40; |
| 336 | else |
| 337 | ap->cbl = ATA_CBL_PATA80; |
| 338 | |
| 339 | /* Reset the state machine */ |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 340 | pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 341 | udelay(100); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 342 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 343 | return ata_std_prereset(ap); |
| 344 | } |
| 345 | |
| 346 | /** |
| 347 | * hpt37x_error_handler - reset the hpt374 |
| 348 | * @ap: ATA port to reset |
| 349 | * |
| 350 | * Perform probe for HPT37x, except for HPT374 channel 2 |
| 351 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 352 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 353 | static void hpt37x_error_handler(struct ata_port *ap) |
| 354 | { |
| 355 | ata_bmdma_drive_eh(ap, hpt37x_pre_reset, ata_std_softreset, NULL, ata_std_postreset); |
| 356 | } |
| 357 | |
| 358 | static int hpt374_pre_reset(struct ata_port *ap) |
| 359 | { |
Alan Cox | b5bf24b | 2006-11-08 16:18:26 +0000 | [diff] [blame] | 360 | static const struct pci_bits hpt37x_enable_bits[] = { |
| 361 | { 0x50, 1, 0x04, 0x04 }, |
| 362 | { 0x54, 1, 0x04, 0x04 } |
| 363 | }; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 364 | u16 mcr3, mcr6; |
| 365 | u8 ata66; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 366 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
Alan Cox | b5bf24b | 2006-11-08 16:18:26 +0000 | [diff] [blame] | 367 | |
| 368 | if (!pci_test_config_bits(pdev, &hpt37x_enable_bits[ap->port_no])) |
| 369 | return -ENOENT; |
Jeff Garzik | f20b16f | 2006-12-11 11:14:06 -0500 | [diff] [blame] | 370 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 371 | /* Do the extra channel work */ |
| 372 | pci_read_config_word(pdev, 0x52, &mcr3); |
| 373 | pci_read_config_word(pdev, 0x56, &mcr6); |
| 374 | /* Set bit 15 of 0x52 to enable TCBLID as input |
| 375 | Set bit 15 of 0x56 to enable FCBLID as input |
| 376 | */ |
| 377 | pci_write_config_word(pdev, 0x52, mcr3 | 0x8000); |
| 378 | pci_write_config_word(pdev, 0x56, mcr6 | 0x8000); |
| 379 | pci_read_config_byte(pdev, 0x5A, &ata66); |
| 380 | /* Reset TCBLID/FCBLID to output */ |
| 381 | pci_write_config_word(pdev, 0x52, mcr3); |
| 382 | pci_write_config_word(pdev, 0x56, mcr6); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 383 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 384 | if (ata66 & (1 << ap->port_no)) |
| 385 | ap->cbl = ATA_CBL_PATA40; |
| 386 | else |
| 387 | ap->cbl = ATA_CBL_PATA80; |
| 388 | |
| 389 | /* Reset the state machine */ |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 390 | pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 391 | udelay(100); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 392 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 393 | return ata_std_prereset(ap); |
| 394 | } |
| 395 | |
| 396 | /** |
| 397 | * hpt374_error_handler - reset the hpt374 |
| 398 | * @classes: |
| 399 | * |
| 400 | * The 374 cable detect is a little different due to the extra |
| 401 | * channels. The function 0 channels work like usual but function 1 |
| 402 | * is special |
| 403 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 404 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 405 | static void hpt374_error_handler(struct ata_port *ap) |
| 406 | { |
| 407 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 408 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 409 | if (!(PCI_FUNC(pdev->devfn) & 1)) |
| 410 | hpt37x_error_handler(ap); |
| 411 | else |
| 412 | ata_bmdma_drive_eh(ap, hpt374_pre_reset, ata_std_softreset, NULL, ata_std_postreset); |
| 413 | } |
| 414 | |
| 415 | /** |
| 416 | * hpt370_set_piomode - PIO setup |
| 417 | * @ap: ATA interface |
| 418 | * @adev: device on the interface |
| 419 | * |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 420 | * Perform PIO mode setup. |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 421 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 422 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 423 | static void hpt370_set_piomode(struct ata_port *ap, struct ata_device *adev) |
| 424 | { |
| 425 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 426 | u32 addr1, addr2; |
| 427 | u32 reg; |
| 428 | u32 mode; |
| 429 | u8 fast; |
| 430 | |
| 431 | addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no); |
| 432 | addr2 = 0x51 + 4 * ap->port_no; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 433 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 434 | /* Fast interrupt prediction disable, hold off interrupt disable */ |
| 435 | pci_read_config_byte(pdev, addr2, &fast); |
| 436 | fast &= ~0x02; |
| 437 | fast |= 0x01; |
| 438 | pci_write_config_byte(pdev, addr2, fast); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 439 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 440 | pci_read_config_dword(pdev, addr1, ®); |
| 441 | mode = hpt37x_find_mode(ap, adev->pio_mode); |
| 442 | mode &= ~0x8000000; /* No FIFO in PIO */ |
| 443 | mode &= ~0x30070000; /* Leave config bits alone */ |
| 444 | reg &= 0x30070000; /* Strip timing bits */ |
| 445 | pci_write_config_dword(pdev, addr1, reg | mode); |
| 446 | } |
| 447 | |
| 448 | /** |
| 449 | * hpt370_set_dmamode - DMA timing setup |
| 450 | * @ap: ATA interface |
| 451 | * @adev: Device being configured |
| 452 | * |
| 453 | * Set up the channel for MWDMA or UDMA modes. Much the same as with |
| 454 | * PIO, load the mode number and then set MWDMA or UDMA flag. |
| 455 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 456 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 457 | static void hpt370_set_dmamode(struct ata_port *ap, struct ata_device *adev) |
| 458 | { |
| 459 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 460 | u32 addr1, addr2; |
| 461 | u32 reg; |
| 462 | u32 mode; |
| 463 | u8 fast; |
| 464 | |
| 465 | addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no); |
| 466 | addr2 = 0x51 + 4 * ap->port_no; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 467 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 468 | /* Fast interrupt prediction disable, hold off interrupt disable */ |
| 469 | pci_read_config_byte(pdev, addr2, &fast); |
| 470 | fast &= ~0x02; |
| 471 | fast |= 0x01; |
| 472 | pci_write_config_byte(pdev, addr2, fast); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 473 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 474 | pci_read_config_dword(pdev, addr1, ®); |
| 475 | mode = hpt37x_find_mode(ap, adev->dma_mode); |
| 476 | mode |= 0x8000000; /* FIFO in MWDMA or UDMA */ |
| 477 | mode &= ~0xC0000000; /* Leave config bits alone */ |
| 478 | reg &= 0xC0000000; /* Strip timing bits */ |
| 479 | pci_write_config_dword(pdev, addr1, reg | mode); |
| 480 | } |
| 481 | |
| 482 | /** |
| 483 | * hpt370_bmdma_start - DMA engine begin |
| 484 | * @qc: ATA command |
| 485 | * |
| 486 | * The 370 and 370A want us to reset the DMA engine each time we |
| 487 | * use it. The 372 and later are fine. |
| 488 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 489 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 490 | static void hpt370_bmdma_start(struct ata_queued_cmd *qc) |
| 491 | { |
| 492 | struct ata_port *ap = qc->ap; |
| 493 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 494 | pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37); |
| 495 | udelay(10); |
| 496 | ata_bmdma_start(qc); |
| 497 | } |
| 498 | |
| 499 | /** |
| 500 | * hpt370_bmdma_end - DMA engine stop |
| 501 | * @qc: ATA command |
| 502 | * |
| 503 | * Work around the HPT370 DMA engine. |
| 504 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 505 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 506 | static void hpt370_bmdma_stop(struct ata_queued_cmd *qc) |
| 507 | { |
| 508 | struct ata_port *ap = qc->ap; |
| 509 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 510 | u8 dma_stat = ioread8(ap->ioaddr.bmdma_addr + 2); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 511 | u8 dma_cmd; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 512 | void __iomem *bmdma = ap->ioaddr.bmdma_addr; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 513 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 514 | if (dma_stat & 0x01) { |
| 515 | udelay(20); |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 516 | dma_stat = ioread8(bmdma + 2); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 517 | } |
| 518 | if (dma_stat & 0x01) { |
| 519 | /* Clear the engine */ |
| 520 | pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37); |
| 521 | udelay(10); |
| 522 | /* Stop DMA */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 523 | dma_cmd = ioread8(bmdma ); |
| 524 | iowrite8(dma_cmd & 0xFE, bmdma); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 525 | /* Clear Error */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 526 | dma_stat = ioread8(bmdma + 2); |
| 527 | iowrite8(dma_stat | 0x06 , bmdma + 2); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 528 | /* Clear the engine */ |
| 529 | pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37); |
| 530 | udelay(10); |
| 531 | } |
| 532 | ata_bmdma_stop(qc); |
| 533 | } |
| 534 | |
| 535 | /** |
| 536 | * hpt372_set_piomode - PIO setup |
| 537 | * @ap: ATA interface |
| 538 | * @adev: device on the interface |
| 539 | * |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 540 | * Perform PIO mode setup. |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 541 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 542 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 543 | static void hpt372_set_piomode(struct ata_port *ap, struct ata_device *adev) |
| 544 | { |
| 545 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 546 | u32 addr1, addr2; |
| 547 | u32 reg; |
| 548 | u32 mode; |
| 549 | u8 fast; |
| 550 | |
| 551 | addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no); |
| 552 | addr2 = 0x51 + 4 * ap->port_no; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 553 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 554 | /* Fast interrupt prediction disable, hold off interrupt disable */ |
| 555 | pci_read_config_byte(pdev, addr2, &fast); |
| 556 | fast &= ~0x07; |
| 557 | pci_write_config_byte(pdev, addr2, fast); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 558 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 559 | pci_read_config_dword(pdev, addr1, ®); |
| 560 | mode = hpt37x_find_mode(ap, adev->pio_mode); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 561 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 562 | printk("Find mode for %d reports %X\n", adev->pio_mode, mode); |
| 563 | mode &= ~0x80000000; /* No FIFO in PIO */ |
| 564 | mode &= ~0x30070000; /* Leave config bits alone */ |
| 565 | reg &= 0x30070000; /* Strip timing bits */ |
| 566 | pci_write_config_dword(pdev, addr1, reg | mode); |
| 567 | } |
| 568 | |
| 569 | /** |
| 570 | * hpt372_set_dmamode - DMA timing setup |
| 571 | * @ap: ATA interface |
| 572 | * @adev: Device being configured |
| 573 | * |
| 574 | * Set up the channel for MWDMA or UDMA modes. Much the same as with |
| 575 | * PIO, load the mode number and then set MWDMA or UDMA flag. |
| 576 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 577 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 578 | static void hpt372_set_dmamode(struct ata_port *ap, struct ata_device *adev) |
| 579 | { |
| 580 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 581 | u32 addr1, addr2; |
| 582 | u32 reg; |
| 583 | u32 mode; |
| 584 | u8 fast; |
| 585 | |
| 586 | addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no); |
| 587 | addr2 = 0x51 + 4 * ap->port_no; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 588 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 589 | /* Fast interrupt prediction disable, hold off interrupt disable */ |
| 590 | pci_read_config_byte(pdev, addr2, &fast); |
| 591 | fast &= ~0x07; |
| 592 | pci_write_config_byte(pdev, addr2, fast); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 593 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 594 | pci_read_config_dword(pdev, addr1, ®); |
| 595 | mode = hpt37x_find_mode(ap, adev->dma_mode); |
| 596 | printk("Find mode for DMA %d reports %X\n", adev->dma_mode, mode); |
| 597 | mode &= ~0xC0000000; /* Leave config bits alone */ |
| 598 | mode |= 0x80000000; /* FIFO in MWDMA or UDMA */ |
| 599 | reg &= 0xC0000000; /* Strip timing bits */ |
| 600 | pci_write_config_dword(pdev, addr1, reg | mode); |
| 601 | } |
| 602 | |
| 603 | /** |
| 604 | * hpt37x_bmdma_end - DMA engine stop |
| 605 | * @qc: ATA command |
| 606 | * |
| 607 | * Clean up after the HPT372 and later DMA engine |
| 608 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 609 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 610 | static void hpt37x_bmdma_stop(struct ata_queued_cmd *qc) |
| 611 | { |
| 612 | struct ata_port *ap = qc->ap; |
| 613 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
Alan | 6929da4 | 2007-01-05 16:37:01 -0800 | [diff] [blame] | 614 | int mscreg = 0x50 + 4 * ap->port_no; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 615 | u8 bwsr_stat, msc_stat; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 616 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 617 | pci_read_config_byte(pdev, 0x6A, &bwsr_stat); |
| 618 | pci_read_config_byte(pdev, mscreg, &msc_stat); |
| 619 | if (bwsr_stat & (1 << ap->port_no)) |
| 620 | pci_write_config_byte(pdev, mscreg, msc_stat | 0x30); |
| 621 | ata_bmdma_stop(qc); |
| 622 | } |
| 623 | |
| 624 | |
| 625 | static struct scsi_host_template hpt37x_sht = { |
| 626 | .module = THIS_MODULE, |
| 627 | .name = DRV_NAME, |
| 628 | .ioctl = ata_scsi_ioctl, |
| 629 | .queuecommand = ata_scsi_queuecmd, |
| 630 | .can_queue = ATA_DEF_QUEUE, |
| 631 | .this_id = ATA_SHT_THIS_ID, |
| 632 | .sg_tablesize = LIBATA_MAX_PRD, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 633 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
| 634 | .emulated = ATA_SHT_EMULATED, |
| 635 | .use_clustering = ATA_SHT_USE_CLUSTERING, |
| 636 | .proc_name = DRV_NAME, |
| 637 | .dma_boundary = ATA_DMA_BOUNDARY, |
| 638 | .slave_configure = ata_scsi_slave_config, |
Tejun Heo | afdfe89 | 2006-11-29 11:26:47 +0900 | [diff] [blame] | 639 | .slave_destroy = ata_scsi_slave_destroy, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 640 | .bios_param = ata_std_bios_param, |
| 641 | }; |
| 642 | |
| 643 | /* |
| 644 | * Configuration for HPT370 |
| 645 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 646 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 647 | static struct ata_port_operations hpt370_port_ops = { |
| 648 | .port_disable = ata_port_disable, |
| 649 | .set_piomode = hpt370_set_piomode, |
| 650 | .set_dmamode = hpt370_set_dmamode, |
| 651 | .mode_filter = hpt370_filter, |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 652 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 653 | .tf_load = ata_tf_load, |
| 654 | .tf_read = ata_tf_read, |
| 655 | .check_status = ata_check_status, |
| 656 | .exec_command = ata_exec_command, |
| 657 | .dev_select = ata_std_dev_select, |
| 658 | |
| 659 | .freeze = ata_bmdma_freeze, |
| 660 | .thaw = ata_bmdma_thaw, |
| 661 | .error_handler = hpt37x_error_handler, |
| 662 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
| 663 | |
| 664 | .bmdma_setup = ata_bmdma_setup, |
| 665 | .bmdma_start = hpt370_bmdma_start, |
| 666 | .bmdma_stop = hpt370_bmdma_stop, |
| 667 | .bmdma_status = ata_bmdma_status, |
| 668 | |
| 669 | .qc_prep = ata_qc_prep, |
| 670 | .qc_issue = ata_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 671 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 672 | .data_xfer = ata_data_xfer, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 673 | |
| 674 | .irq_handler = ata_interrupt, |
| 675 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 676 | .irq_on = ata_irq_on, |
| 677 | .irq_ack = ata_irq_ack, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 678 | |
| 679 | .port_start = ata_port_start, |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 680 | }; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 681 | |
| 682 | /* |
| 683 | * Configuration for HPT370A. Close to 370 but less filters |
| 684 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 685 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 686 | static struct ata_port_operations hpt370a_port_ops = { |
| 687 | .port_disable = ata_port_disable, |
| 688 | .set_piomode = hpt370_set_piomode, |
| 689 | .set_dmamode = hpt370_set_dmamode, |
| 690 | .mode_filter = hpt370a_filter, |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 691 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 692 | .tf_load = ata_tf_load, |
| 693 | .tf_read = ata_tf_read, |
| 694 | .check_status = ata_check_status, |
| 695 | .exec_command = ata_exec_command, |
| 696 | .dev_select = ata_std_dev_select, |
| 697 | |
| 698 | .freeze = ata_bmdma_freeze, |
| 699 | .thaw = ata_bmdma_thaw, |
| 700 | .error_handler = hpt37x_error_handler, |
| 701 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
| 702 | |
| 703 | .bmdma_setup = ata_bmdma_setup, |
| 704 | .bmdma_start = hpt370_bmdma_start, |
| 705 | .bmdma_stop = hpt370_bmdma_stop, |
| 706 | .bmdma_status = ata_bmdma_status, |
| 707 | |
| 708 | .qc_prep = ata_qc_prep, |
| 709 | .qc_issue = ata_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 710 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 711 | .data_xfer = ata_data_xfer, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 712 | |
| 713 | .irq_handler = ata_interrupt, |
| 714 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 715 | .irq_on = ata_irq_on, |
| 716 | .irq_ack = ata_irq_ack, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 717 | |
| 718 | .port_start = ata_port_start, |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 719 | }; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 720 | |
| 721 | /* |
| 722 | * Configuration for HPT372, HPT371, HPT302. Slightly different PIO |
| 723 | * and DMA mode setting functionality. |
| 724 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 725 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 726 | static struct ata_port_operations hpt372_port_ops = { |
| 727 | .port_disable = ata_port_disable, |
| 728 | .set_piomode = hpt372_set_piomode, |
| 729 | .set_dmamode = hpt372_set_dmamode, |
| 730 | .mode_filter = ata_pci_default_filter, |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 731 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 732 | .tf_load = ata_tf_load, |
| 733 | .tf_read = ata_tf_read, |
| 734 | .check_status = ata_check_status, |
| 735 | .exec_command = ata_exec_command, |
| 736 | .dev_select = ata_std_dev_select, |
| 737 | |
| 738 | .freeze = ata_bmdma_freeze, |
| 739 | .thaw = ata_bmdma_thaw, |
| 740 | .error_handler = hpt37x_error_handler, |
| 741 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
| 742 | |
| 743 | .bmdma_setup = ata_bmdma_setup, |
| 744 | .bmdma_start = ata_bmdma_start, |
| 745 | .bmdma_stop = hpt37x_bmdma_stop, |
| 746 | .bmdma_status = ata_bmdma_status, |
| 747 | |
| 748 | .qc_prep = ata_qc_prep, |
| 749 | .qc_issue = ata_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 750 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 751 | .data_xfer = ata_data_xfer, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 752 | |
| 753 | .irq_handler = ata_interrupt, |
| 754 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 755 | .irq_on = ata_irq_on, |
| 756 | .irq_ack = ata_irq_ack, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 757 | |
| 758 | .port_start = ata_port_start, |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 759 | }; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 760 | |
| 761 | /* |
| 762 | * Configuration for HPT374. Mode setting works like 372 and friends |
| 763 | * but we have a different cable detection procedure. |
| 764 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 765 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 766 | static struct ata_port_operations hpt374_port_ops = { |
| 767 | .port_disable = ata_port_disable, |
| 768 | .set_piomode = hpt372_set_piomode, |
| 769 | .set_dmamode = hpt372_set_dmamode, |
| 770 | .mode_filter = ata_pci_default_filter, |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 771 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 772 | .tf_load = ata_tf_load, |
| 773 | .tf_read = ata_tf_read, |
| 774 | .check_status = ata_check_status, |
| 775 | .exec_command = ata_exec_command, |
| 776 | .dev_select = ata_std_dev_select, |
| 777 | |
| 778 | .freeze = ata_bmdma_freeze, |
| 779 | .thaw = ata_bmdma_thaw, |
| 780 | .error_handler = hpt374_error_handler, |
| 781 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
| 782 | |
| 783 | .bmdma_setup = ata_bmdma_setup, |
| 784 | .bmdma_start = ata_bmdma_start, |
| 785 | .bmdma_stop = hpt37x_bmdma_stop, |
| 786 | .bmdma_status = ata_bmdma_status, |
| 787 | |
| 788 | .qc_prep = ata_qc_prep, |
| 789 | .qc_issue = ata_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 790 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 791 | .data_xfer = ata_data_xfer, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 792 | |
| 793 | .irq_handler = ata_interrupt, |
| 794 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 795 | .irq_on = ata_irq_on, |
| 796 | .irq_ack = ata_irq_ack, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 797 | |
| 798 | .port_start = ata_port_start, |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 799 | }; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 800 | |
| 801 | /** |
| 802 | * htp37x_clock_slot - Turn timing to PC clock entry |
| 803 | * @freq: Reported frequency timing |
| 804 | * @base: Base timing |
| 805 | * |
| 806 | * Turn the timing data intoa clock slot (0 for 33, 1 for 40, 2 for 50 |
| 807 | * and 3 for 66Mhz) |
| 808 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 809 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 810 | static int hpt37x_clock_slot(unsigned int freq, unsigned int base) |
| 811 | { |
| 812 | unsigned int f = (base * freq) / 192; /* Mhz */ |
| 813 | if (f < 40) |
| 814 | return 0; /* 33Mhz slot */ |
| 815 | if (f < 45) |
| 816 | return 1; /* 40Mhz slot */ |
| 817 | if (f < 55) |
| 818 | return 2; /* 50Mhz slot */ |
| 819 | return 3; /* 60Mhz slot */ |
| 820 | } |
| 821 | |
| 822 | /** |
| 823 | * hpt37x_calibrate_dpll - Calibrate the DPLL loop |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 824 | * @dev: PCI device |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 825 | * |
| 826 | * Perform a calibration cycle on the HPT37x DPLL. Returns 1 if this |
| 827 | * succeeds |
| 828 | */ |
| 829 | |
| 830 | static int hpt37x_calibrate_dpll(struct pci_dev *dev) |
| 831 | { |
| 832 | u8 reg5b; |
| 833 | u32 reg5c; |
| 834 | int tries; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 835 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 836 | for(tries = 0; tries < 0x5000; tries++) { |
| 837 | udelay(50); |
| 838 | pci_read_config_byte(dev, 0x5b, ®5b); |
| 839 | if (reg5b & 0x80) { |
| 840 | /* See if it stays set */ |
| 841 | for(tries = 0; tries < 0x1000; tries ++) { |
| 842 | pci_read_config_byte(dev, 0x5b, ®5b); |
| 843 | /* Failed ? */ |
| 844 | if ((reg5b & 0x80) == 0) |
| 845 | return 0; |
| 846 | } |
| 847 | /* Turn off tuning, we have the DPLL set */ |
| 848 | pci_read_config_dword(dev, 0x5c, ®5c); |
| 849 | pci_write_config_dword(dev, 0x5c, reg5c & ~ 0x100); |
| 850 | return 1; |
| 851 | } |
| 852 | } |
| 853 | /* Never went stable */ |
| 854 | return 0; |
| 855 | } |
| 856 | /** |
| 857 | * hpt37x_init_one - Initialise an HPT37X/302 |
| 858 | * @dev: PCI device |
| 859 | * @id: Entry in match table |
| 860 | * |
| 861 | * Initialise an HPT37x device. There are some interesting complications |
| 862 | * here. Firstly the chip may report 366 and be one of several variants. |
| 863 | * Secondly all the timings depend on the clock for the chip which we must |
| 864 | * detect and look up |
| 865 | * |
| 866 | * This is the known chip mappings. It may be missing a couple of later |
| 867 | * releases. |
| 868 | * |
| 869 | * Chip version PCI Rev Notes |
| 870 | * HPT366 4 (HPT366) 0 Other driver |
| 871 | * HPT366 4 (HPT366) 1 Other driver |
| 872 | * HPT368 4 (HPT366) 2 Other driver |
| 873 | * HPT370 4 (HPT366) 3 UDMA100 |
| 874 | * HPT370A 4 (HPT366) 4 UDMA100 |
| 875 | * HPT372 4 (HPT366) 5 UDMA133 (1) |
| 876 | * HPT372N 4 (HPT366) 6 Other driver |
| 877 | * HPT372A 5 (HPT372) 1 UDMA133 (1) |
| 878 | * HPT372N 5 (HPT372) 2 Other driver |
| 879 | * HPT302 6 (HPT302) 1 UDMA133 |
| 880 | * HPT302N 6 (HPT302) 2 Other driver |
| 881 | * HPT371 7 (HPT371) * UDMA133 |
| 882 | * HPT374 8 (HPT374) * UDMA133 4 channel |
| 883 | * HPT372N 9 (HPT372N) * Other driver |
| 884 | * |
| 885 | * (1) UDMA133 support depends on the bus clock |
| 886 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 887 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 888 | static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id) |
| 889 | { |
| 890 | /* HPT370 - UDMA100 */ |
| 891 | static struct ata_port_info info_hpt370 = { |
| 892 | .sht = &hpt37x_sht, |
| 893 | .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST, |
| 894 | .pio_mask = 0x1f, |
| 895 | .mwdma_mask = 0x07, |
| 896 | .udma_mask = 0x3f, |
| 897 | .port_ops = &hpt370_port_ops |
| 898 | }; |
| 899 | /* HPT370A - UDMA100 */ |
| 900 | static struct ata_port_info info_hpt370a = { |
| 901 | .sht = &hpt37x_sht, |
| 902 | .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST, |
| 903 | .pio_mask = 0x1f, |
| 904 | .mwdma_mask = 0x07, |
| 905 | .udma_mask = 0x3f, |
| 906 | .port_ops = &hpt370a_port_ops |
| 907 | }; |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 908 | /* HPT370 - UDMA100 */ |
| 909 | static struct ata_port_info info_hpt370_33 = { |
| 910 | .sht = &hpt37x_sht, |
| 911 | .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST, |
| 912 | .pio_mask = 0x1f, |
| 913 | .mwdma_mask = 0x07, |
| 914 | .udma_mask = 0x0f, |
| 915 | .port_ops = &hpt370_port_ops |
| 916 | }; |
| 917 | /* HPT370A - UDMA100 */ |
| 918 | static struct ata_port_info info_hpt370a_33 = { |
| 919 | .sht = &hpt37x_sht, |
| 920 | .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST, |
| 921 | .pio_mask = 0x1f, |
| 922 | .mwdma_mask = 0x07, |
| 923 | .udma_mask = 0x0f, |
| 924 | .port_ops = &hpt370a_port_ops |
| 925 | }; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 926 | /* HPT371, 372 and friends - UDMA133 */ |
| 927 | static struct ata_port_info info_hpt372 = { |
| 928 | .sht = &hpt37x_sht, |
| 929 | .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST, |
| 930 | .pio_mask = 0x1f, |
| 931 | .mwdma_mask = 0x07, |
| 932 | .udma_mask = 0x7f, |
| 933 | .port_ops = &hpt372_port_ops |
| 934 | }; |
| 935 | /* HPT371, 372 and friends - UDMA100 at 50MHz clock */ |
| 936 | static struct ata_port_info info_hpt372_50 = { |
| 937 | .sht = &hpt37x_sht, |
| 938 | .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST, |
| 939 | .pio_mask = 0x1f, |
| 940 | .mwdma_mask = 0x07, |
| 941 | .udma_mask = 0x3f, |
| 942 | .port_ops = &hpt372_port_ops |
| 943 | }; |
| 944 | /* HPT374 - UDMA133 */ |
| 945 | static struct ata_port_info info_hpt374 = { |
| 946 | .sht = &hpt37x_sht, |
| 947 | .flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST, |
| 948 | .pio_mask = 0x1f, |
| 949 | .mwdma_mask = 0x07, |
| 950 | .udma_mask = 0x7f, |
| 951 | .port_ops = &hpt374_port_ops |
| 952 | }; |
| 953 | |
| 954 | static const int MHz[4] = { 33, 40, 50, 66 }; |
| 955 | |
| 956 | struct ata_port_info *port_info[2]; |
| 957 | struct ata_port_info *port; |
| 958 | |
| 959 | u8 irqmask; |
| 960 | u32 class_rev; |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 961 | u8 mcr1; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 962 | u32 freq; |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 963 | int prefer_dpll = 1; |
| 964 | |
| 965 | unsigned long iobase = pci_resource_start(dev, 4); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 966 | |
| 967 | const struct hpt_chip *chip_table; |
| 968 | int clock_slot; |
| 969 | |
| 970 | pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev); |
| 971 | class_rev &= 0xFF; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 972 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 973 | if (dev->device == PCI_DEVICE_ID_TTI_HPT366) { |
| 974 | /* May be a later chip in disguise. Check */ |
| 975 | /* Older chips are in the HPT366 driver. Ignore them */ |
| 976 | if (class_rev < 3) |
| 977 | return -ENODEV; |
| 978 | /* N series chips have their own driver. Ignore */ |
| 979 | if (class_rev == 6) |
| 980 | return -ENODEV; |
| 981 | |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 982 | switch(class_rev) { |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 983 | case 3: |
| 984 | port = &info_hpt370; |
| 985 | chip_table = &hpt370; |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 986 | prefer_dpll = 0; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 987 | break; |
| 988 | case 4: |
| 989 | port = &info_hpt370a; |
| 990 | chip_table = &hpt370a; |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 991 | prefer_dpll = 0; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 992 | break; |
| 993 | case 5: |
| 994 | port = &info_hpt372; |
| 995 | chip_table = &hpt372; |
| 996 | break; |
| 997 | default: |
| 998 | printk(KERN_ERR "pata_hpt37x: Unknown HPT366 subtype please report (%d).\n", class_rev); |
| 999 | return -ENODEV; |
| 1000 | } |
| 1001 | } else { |
| 1002 | switch(dev->device) { |
| 1003 | case PCI_DEVICE_ID_TTI_HPT372: |
| 1004 | /* 372N if rev >= 2*/ |
| 1005 | if (class_rev >= 2) |
| 1006 | return -ENODEV; |
| 1007 | port = &info_hpt372; |
| 1008 | chip_table = &hpt372a; |
| 1009 | break; |
| 1010 | case PCI_DEVICE_ID_TTI_HPT302: |
| 1011 | /* 302N if rev > 1 */ |
| 1012 | if (class_rev > 1) |
| 1013 | return -ENODEV; |
| 1014 | port = &info_hpt372; |
| 1015 | /* Check this */ |
| 1016 | chip_table = &hpt302; |
| 1017 | break; |
| 1018 | case PCI_DEVICE_ID_TTI_HPT371: |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 1019 | if (class_rev > 1) |
| 1020 | return -ENODEV; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1021 | port = &info_hpt372; |
| 1022 | chip_table = &hpt371; |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 1023 | /* Single channel device, paster is not present |
| 1024 | but the NIOS (or us for non x86) must mark it |
| 1025 | absent */ |
| 1026 | pci_read_config_byte(dev, 0x50, &mcr1); |
| 1027 | mcr1 &= ~0x04; |
| 1028 | pci_write_config_byte(dev, 0x50, mcr1); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1029 | break; |
| 1030 | case PCI_DEVICE_ID_TTI_HPT374: |
| 1031 | chip_table = &hpt374; |
| 1032 | port = &info_hpt374; |
| 1033 | break; |
| 1034 | default: |
| 1035 | printk(KERN_ERR "pata_hpt37x: PCI table is bogus please report (%d).\n", dev->device); |
| 1036 | return -ENODEV; |
| 1037 | } |
| 1038 | } |
| 1039 | /* Ok so this is a chip we support */ |
| 1040 | |
| 1041 | pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4)); |
| 1042 | pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78); |
| 1043 | pci_write_config_byte(dev, PCI_MIN_GNT, 0x08); |
| 1044 | pci_write_config_byte(dev, PCI_MAX_LAT, 0x08); |
| 1045 | |
| 1046 | pci_read_config_byte(dev, 0x5A, &irqmask); |
| 1047 | irqmask &= ~0x10; |
| 1048 | pci_write_config_byte(dev, 0x5a, irqmask); |
| 1049 | |
| 1050 | /* |
| 1051 | * default to pci clock. make sure MA15/16 are set to output |
| 1052 | * to prevent drives having problems with 40-pin cables. Needed |
| 1053 | * for some drives such as IBM-DTLA which will not enter ready |
| 1054 | * state on reset when PDIAG is a input. |
| 1055 | */ |
| 1056 | |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 1057 | pci_write_config_byte(dev, 0x5b, 0x23); |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 1058 | |
| 1059 | /* |
| 1060 | * HighPoint does this for HPT372A. |
| 1061 | * NOTE: This register is only writeable via I/O space. |
| 1062 | */ |
| 1063 | if (chip_table == &hpt372a) |
| 1064 | outb(0x0e, iobase + 0x9c); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 1065 | |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 1066 | /* Some devices do not let this value be accessed via PCI space |
| 1067 | according to the old driver */ |
| 1068 | |
| 1069 | freq = inl(iobase + 0x90); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1070 | if ((freq >> 12) != 0xABCDE) { |
| 1071 | int i; |
| 1072 | u8 sr; |
| 1073 | u32 total = 0; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 1074 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1075 | printk(KERN_WARNING "pata_hpt37x: BIOS has not set timing clocks.\n"); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 1076 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1077 | /* This is the process the HPT371 BIOS is reported to use */ |
| 1078 | for(i = 0; i < 128; i++) { |
| 1079 | pci_read_config_byte(dev, 0x78, &sr); |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 1080 | total += sr & 0x1FF; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1081 | udelay(15); |
| 1082 | } |
| 1083 | freq = total / 128; |
| 1084 | } |
| 1085 | freq &= 0x1FF; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 1086 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1087 | /* |
| 1088 | * Turn the frequency check into a band and then find a timing |
| 1089 | * table to match it. |
| 1090 | */ |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 1091 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1092 | clock_slot = hpt37x_clock_slot(freq, chip_table->base); |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 1093 | if (chip_table->clocks[clock_slot] == NULL || prefer_dpll) { |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1094 | /* |
| 1095 | * We need to try PLL mode instead |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 1096 | * |
| 1097 | * For non UDMA133 capable devices we should |
| 1098 | * use a 50MHz DPLL by choice |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1099 | */ |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 1100 | unsigned int f_low, f_high; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1101 | int adjust; |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 1102 | |
| 1103 | clock_slot = 2; |
| 1104 | if (port->udma_mask & 0xE0) |
| 1105 | clock_slot = 3; |
| 1106 | |
| 1107 | f_low = (MHz[clock_slot] * chip_table->base) / 192; |
| 1108 | f_high = f_low + 2; |
| 1109 | |
| 1110 | /* Select the DPLL clock. */ |
| 1111 | pci_write_config_byte(dev, 0x5b, 0x21); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 1112 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1113 | for(adjust = 0; adjust < 8; adjust++) { |
| 1114 | if (hpt37x_calibrate_dpll(dev)) |
| 1115 | break; |
| 1116 | /* See if it'll settle at a fractionally different clock */ |
| 1117 | if ((adjust & 3) == 3) { |
| 1118 | f_low --; |
| 1119 | f_high ++; |
| 1120 | } |
| 1121 | pci_write_config_dword(dev, 0x5C, (f_high << 16) | f_low); |
| 1122 | } |
| 1123 | if (adjust == 8) { |
| 1124 | printk(KERN_WARNING "hpt37x: DPLL did not stabilize.\n"); |
| 1125 | return -ENODEV; |
| 1126 | } |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 1127 | if (clock_slot == 3) |
| 1128 | port->private_data = (void *)hpt37x_timings_66; |
| 1129 | else |
| 1130 | port->private_data = (void *)hpt37x_timings_50; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 1131 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1132 | printk(KERN_INFO "hpt37x: Bus clock %dMHz, using DPLL.\n", MHz[clock_slot]); |
| 1133 | } else { |
| 1134 | port->private_data = (void *)chip_table->clocks[clock_slot]; |
| 1135 | /* |
| 1136 | * Perform a final fixup. The 371 and 372 clock determines |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 1137 | * if UDMA133 is available. (FIXME: should we use DPLL then ?) |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1138 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 1139 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1140 | if (clock_slot == 2 && chip_table == &hpt372) { /* 50Mhz */ |
| 1141 | printk(KERN_WARNING "pata_hpt37x: No UDMA133 support available with 50MHz bus clock.\n"); |
| 1142 | if (port == &info_hpt372) |
| 1143 | port = &info_hpt372_50; |
| 1144 | else BUG(); |
| 1145 | } |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 1146 | if (clock_slot < 2 && port == &info_hpt370) |
| 1147 | port = &info_hpt370_33; |
| 1148 | if (clock_slot < 2 && port == &info_hpt370a) |
| 1149 | port = &info_hpt370a_33; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1150 | printk(KERN_INFO "hpt37x: %s: Bus clock %dMHz.\n", chip_table->name, MHz[clock_slot]); |
| 1151 | } |
Alan Cox | fcc2f69 | 2007-03-08 23:28:52 +0000 | [diff] [blame^] | 1152 | |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 1153 | port_info[0] = port_info[1] = port; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1154 | /* Now kick off ATA set up */ |
| 1155 | return ata_pci_init_one(dev, port_info, 2); |
| 1156 | } |
| 1157 | |
Jeff Garzik | 2d2744f | 2006-09-28 20:21:59 -0400 | [diff] [blame] | 1158 | static const struct pci_device_id hpt37x[] = { |
| 1159 | { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT366), }, |
| 1160 | { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT371), }, |
| 1161 | { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372), }, |
| 1162 | { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT374), }, |
| 1163 | { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT302), }, |
| 1164 | |
| 1165 | { }, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1166 | }; |
| 1167 | |
| 1168 | static struct pci_driver hpt37x_pci_driver = { |
Jeff Garzik | 2d2744f | 2006-09-28 20:21:59 -0400 | [diff] [blame] | 1169 | .name = DRV_NAME, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1170 | .id_table = hpt37x, |
| 1171 | .probe = hpt37x_init_one, |
| 1172 | .remove = ata_pci_remove_one |
| 1173 | }; |
| 1174 | |
| 1175 | static int __init hpt37x_init(void) |
| 1176 | { |
| 1177 | return pci_register_driver(&hpt37x_pci_driver); |
| 1178 | } |
| 1179 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1180 | static void __exit hpt37x_exit(void) |
| 1181 | { |
| 1182 | pci_unregister_driver(&hpt37x_pci_driver); |
| 1183 | } |
| 1184 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1185 | MODULE_AUTHOR("Alan Cox"); |
| 1186 | MODULE_DESCRIPTION("low-level driver for the Highpoint HPT37x/30x"); |
| 1187 | MODULE_LICENSE("GPL"); |
| 1188 | MODULE_DEVICE_TABLE(pci, hpt37x); |
| 1189 | MODULE_VERSION(DRV_VERSION); |
| 1190 | |
| 1191 | module_init(hpt37x_init); |
| 1192 | module_exit(hpt37x_exit); |