Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Promise TX2/TX4/TX2000/133 IDE driver |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; either version |
| 7 | * 2 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * Split from: |
| 10 | * linux/drivers/ide/pdc202xx.c Version 0.35 Mar. 30, 2002 |
| 11 | * Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org> |
Sergei Shtylyov | b10a068 | 2006-12-08 02:39:59 -0800 | [diff] [blame] | 12 | * Copyright (C) 2005-2006 MontaVista Software, Inc. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | * Portions Copyright (C) 1999 Promise Technology, Inc. |
| 14 | * Author: Frank Tiernan (frankt@promise.com) |
| 15 | * Released under terms of General Public License |
| 16 | */ |
| 17 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include <linux/module.h> |
| 19 | #include <linux/types.h> |
| 20 | #include <linux/kernel.h> |
| 21 | #include <linux/delay.h> |
| 22 | #include <linux/timer.h> |
| 23 | #include <linux/mm.h> |
| 24 | #include <linux/ioport.h> |
| 25 | #include <linux/blkdev.h> |
| 26 | #include <linux/hdreg.h> |
| 27 | #include <linux/interrupt.h> |
| 28 | #include <linux/pci.h> |
| 29 | #include <linux/init.h> |
| 30 | #include <linux/ide.h> |
| 31 | |
| 32 | #include <asm/io.h> |
| 33 | #include <asm/irq.h> |
| 34 | |
| 35 | #ifdef CONFIG_PPC_PMAC |
| 36 | #include <asm/prom.h> |
| 37 | #include <asm/pci-bridge.h> |
| 38 | #endif |
| 39 | |
| 40 | #define PDC202_DEBUG_CABLE 0 |
| 41 | |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 42 | #undef DEBUG |
| 43 | |
| 44 | #ifdef DEBUG |
| 45 | #define DBG(fmt, args...) printk("%s: " fmt, __FUNCTION__, ## args) |
| 46 | #else |
| 47 | #define DBG(fmt, args...) |
| 48 | #endif |
| 49 | |
Jesper Juhl | 3c6bee1 | 2006-01-09 20:54:01 -0800 | [diff] [blame] | 50 | static const char *pdc_quirk_drives[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | "QUANTUM FIREBALLlct08 08", |
| 52 | "QUANTUM FIREBALLP KA6.4", |
| 53 | "QUANTUM FIREBALLP KA9.1", |
| 54 | "QUANTUM FIREBALLP LM20.4", |
| 55 | "QUANTUM FIREBALLP KX13.6", |
| 56 | "QUANTUM FIREBALLP KX20.5", |
| 57 | "QUANTUM FIREBALLP KX27.3", |
| 58 | "QUANTUM FIREBALLP LM20.5", |
| 59 | NULL |
| 60 | }; |
| 61 | |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 62 | static u8 max_dma_rate(struct pci_dev *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | { |
| 64 | u8 mode; |
| 65 | |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 66 | switch(pdev->device) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | case PCI_DEVICE_ID_PROMISE_20277: |
| 68 | case PCI_DEVICE_ID_PROMISE_20276: |
| 69 | case PCI_DEVICE_ID_PROMISE_20275: |
| 70 | case PCI_DEVICE_ID_PROMISE_20271: |
| 71 | case PCI_DEVICE_ID_PROMISE_20269: |
| 72 | mode = 4; |
| 73 | break; |
| 74 | case PCI_DEVICE_ID_PROMISE_20270: |
| 75 | case PCI_DEVICE_ID_PROMISE_20268: |
| 76 | mode = 3; |
| 77 | break; |
| 78 | default: |
| 79 | return 0; |
| 80 | } |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 81 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | return mode; |
| 83 | } |
| 84 | |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 85 | static u8 pdcnew_ratemask(ide_drive_t *drive) |
| 86 | { |
| 87 | u8 mode = max_dma_rate(HWIF(drive)->pci_dev); |
| 88 | |
| 89 | if (!eighty_ninty_three(drive)) |
| 90 | mode = min_t(u8, mode, 1); |
| 91 | |
| 92 | return mode; |
| 93 | } |
| 94 | |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 95 | /** |
| 96 | * get_indexed_reg - Get indexed register |
| 97 | * @hwif: for the port address |
| 98 | * @index: index of the indexed register |
| 99 | */ |
| 100 | static u8 get_indexed_reg(ide_hwif_t *hwif, u8 index) |
| 101 | { |
| 102 | u8 value; |
| 103 | |
Bartlomiej Zolnierkiewicz | 0ecdca2 | 2007-02-17 02:40:25 +0100 | [diff] [blame^] | 104 | outb(index, hwif->dma_vendor1); |
| 105 | value = inb(hwif->dma_vendor3); |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 106 | |
| 107 | DBG("index[%02X] value[%02X]\n", index, value); |
| 108 | return value; |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * set_indexed_reg - Set indexed register |
| 113 | * @hwif: for the port address |
| 114 | * @index: index of the indexed register |
| 115 | */ |
| 116 | static void set_indexed_reg(ide_hwif_t *hwif, u8 index, u8 value) |
| 117 | { |
Bartlomiej Zolnierkiewicz | 0ecdca2 | 2007-02-17 02:40:25 +0100 | [diff] [blame^] | 118 | outb(index, hwif->dma_vendor1); |
| 119 | outb(value, hwif->dma_vendor3); |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 120 | DBG("index[%02X] value[%02X]\n", index, value); |
| 121 | } |
| 122 | |
| 123 | /* |
| 124 | * ATA Timing Tables based on 133 MHz PLL output clock. |
| 125 | * |
| 126 | * If the PLL outputs 100 MHz clock, the ASIC hardware will set |
| 127 | * the timing registers automatically when "set features" command is |
| 128 | * issued to the device. However, if the PLL output clock is 133 MHz, |
| 129 | * the following tables must be used. |
| 130 | */ |
| 131 | static struct pio_timing { |
| 132 | u8 reg0c, reg0d, reg13; |
| 133 | } pio_timings [] = { |
| 134 | { 0xfb, 0x2b, 0xac }, /* PIO mode 0, IORDY off, Prefetch off */ |
| 135 | { 0x46, 0x29, 0xa4 }, /* PIO mode 1, IORDY off, Prefetch off */ |
| 136 | { 0x23, 0x26, 0x64 }, /* PIO mode 2, IORDY off, Prefetch off */ |
| 137 | { 0x27, 0x0d, 0x35 }, /* PIO mode 3, IORDY on, Prefetch off */ |
| 138 | { 0x23, 0x09, 0x25 }, /* PIO mode 4, IORDY on, Prefetch off */ |
| 139 | }; |
| 140 | |
| 141 | static struct mwdma_timing { |
| 142 | u8 reg0e, reg0f; |
| 143 | } mwdma_timings [] = { |
| 144 | { 0xdf, 0x5f }, /* MWDMA mode 0 */ |
| 145 | { 0x6b, 0x27 }, /* MWDMA mode 1 */ |
| 146 | { 0x69, 0x25 }, /* MWDMA mode 2 */ |
| 147 | }; |
| 148 | |
| 149 | static struct udma_timing { |
| 150 | u8 reg10, reg11, reg12; |
| 151 | } udma_timings [] = { |
| 152 | { 0x4a, 0x0f, 0xd5 }, /* UDMA mode 0 */ |
| 153 | { 0x3a, 0x0a, 0xd0 }, /* UDMA mode 1 */ |
| 154 | { 0x2a, 0x07, 0xcd }, /* UDMA mode 2 */ |
| 155 | { 0x1a, 0x05, 0xcd }, /* UDMA mode 3 */ |
| 156 | { 0x1a, 0x03, 0xcd }, /* UDMA mode 4 */ |
| 157 | { 0x1a, 0x02, 0xcb }, /* UDMA mode 5 */ |
| 158 | { 0x1a, 0x01, 0xcb }, /* UDMA mode 6 */ |
| 159 | }; |
| 160 | |
| 161 | static int pdcnew_tune_chipset(ide_drive_t *drive, u8 speed) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | { |
| 163 | ide_hwif_t *hwif = HWIF(drive); |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 164 | u8 adj = (drive->dn & 1) ? 0x08 : 0x00; |
| 165 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 167 | speed = ide_rate_filter(pdcnew_ratemask(drive), speed); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 169 | /* |
| 170 | * Issue SETFEATURES_XFER to the drive first. PDC202xx hardware will |
| 171 | * automatically set the timing registers based on 100 MHz PLL output. |
| 172 | */ |
| 173 | err = ide_config_drive_speed(drive, speed); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 175 | /* |
| 176 | * As we set up the PLL to output 133 MHz for UltraDMA/133 capable |
| 177 | * chips, we must override the default register settings... |
| 178 | */ |
| 179 | if (max_dma_rate(hwif->pci_dev) == 4) { |
| 180 | u8 mode = speed & 0x07; |
| 181 | |
| 182 | switch (speed) { |
| 183 | case XFER_UDMA_6: |
| 184 | case XFER_UDMA_5: |
| 185 | case XFER_UDMA_4: |
| 186 | case XFER_UDMA_3: |
| 187 | case XFER_UDMA_2: |
| 188 | case XFER_UDMA_1: |
| 189 | case XFER_UDMA_0: |
| 190 | set_indexed_reg(hwif, 0x10 + adj, |
| 191 | udma_timings[mode].reg10); |
| 192 | set_indexed_reg(hwif, 0x11 + adj, |
| 193 | udma_timings[mode].reg11); |
| 194 | set_indexed_reg(hwif, 0x12 + adj, |
| 195 | udma_timings[mode].reg12); |
| 196 | break; |
| 197 | |
| 198 | case XFER_MW_DMA_2: |
| 199 | case XFER_MW_DMA_1: |
| 200 | case XFER_MW_DMA_0: |
| 201 | set_indexed_reg(hwif, 0x0e + adj, |
| 202 | mwdma_timings[mode].reg0e); |
| 203 | set_indexed_reg(hwif, 0x0f + adj, |
| 204 | mwdma_timings[mode].reg0f); |
| 205 | break; |
| 206 | case XFER_PIO_4: |
| 207 | case XFER_PIO_3: |
| 208 | case XFER_PIO_2: |
| 209 | case XFER_PIO_1: |
| 210 | case XFER_PIO_0: |
| 211 | set_indexed_reg(hwif, 0x0c + adj, |
| 212 | pio_timings[mode].reg0c); |
| 213 | set_indexed_reg(hwif, 0x0d + adj, |
| 214 | pio_timings[mode].reg0d); |
| 215 | set_indexed_reg(hwif, 0x13 + adj, |
| 216 | pio_timings[mode].reg13); |
| 217 | break; |
| 218 | default: |
| 219 | printk(KERN_ERR "pdc202xx_new: " |
| 220 | "Unknown speed %d ignored\n", speed); |
| 221 | } |
| 222 | } else if (speed == XFER_UDMA_2) { |
| 223 | /* Set tHOLD bit to 0 if using UDMA mode 2 */ |
| 224 | u8 tmp = get_indexed_reg(hwif, 0x10 + adj); |
| 225 | |
| 226 | set_indexed_reg(hwif, 0x10 + adj, tmp & 0x7f); |
| 227 | } |
| 228 | |
| 229 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | } |
| 231 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | static void pdcnew_tune_drive(ide_drive_t *drive, u8 pio) |
| 233 | { |
Sergei Shtylyov | b10a068 | 2006-12-08 02:39:59 -0800 | [diff] [blame] | 234 | pio = ide_get_best_pio_mode(drive, pio, 4, NULL); |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 235 | (void)pdcnew_tune_chipset(drive, XFER_PIO_0 + pio); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | } |
| 237 | |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 238 | static u8 pdcnew_cable_detect(ide_hwif_t *hwif) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | { |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 240 | return get_indexed_reg(hwif, 0x0b) & 0x04; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | } |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 242 | |
| 243 | static int config_chipset_for_dma(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | { |
| 245 | struct hd_driveid *id = drive->id; |
| 246 | ide_hwif_t *hwif = HWIF(drive); |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 247 | u8 ultra_66 = (id->dma_ultra & 0x0078) ? 1 : 0; |
| 248 | u8 cable = pdcnew_cable_detect(hwif); |
| 249 | u8 speed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | |
| 251 | if (ultra_66 && cable) { |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 252 | printk(KERN_WARNING "Warning: %s channel " |
| 253 | "requires an 80-pin cable for operation.\n", |
| 254 | hwif->channel ? "Secondary" : "Primary"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | printk(KERN_WARNING "%s reduced to Ultra33 mode.\n", drive->name); |
| 256 | } |
| 257 | |
| 258 | if (drive->media != ide_disk) |
| 259 | return 0; |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 260 | |
| 261 | if (id->capability & 4) { |
| 262 | /* |
| 263 | * Set IORDY_EN & PREFETCH_EN (this seems to have |
| 264 | * NO real effect since this register is reloaded |
| 265 | * by hardware when the transfer mode is selected) |
| 266 | */ |
| 267 | u8 tmp, adj = (drive->dn & 1) ? 0x08 : 0x00; |
| 268 | |
| 269 | tmp = get_indexed_reg(hwif, 0x13 + adj); |
| 270 | set_indexed_reg(hwif, 0x13 + adj, tmp | 0x03); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | } |
| 272 | |
| 273 | speed = ide_dma_speed(drive, pdcnew_ratemask(drive)); |
| 274 | |
Sergei Shtylyov | b10a068 | 2006-12-08 02:39:59 -0800 | [diff] [blame] | 275 | if (!speed) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | |
| 278 | (void) hwif->speedproc(drive, speed); |
| 279 | return ide_dma_enable(drive); |
| 280 | } |
| 281 | |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 282 | static int pdcnew_config_drive_xfer_rate(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | { |
| 284 | ide_hwif_t *hwif = HWIF(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | |
| 286 | drive->init_speed = 0; |
| 287 | |
Bartlomiej Zolnierkiewicz | 7569e8d | 2007-02-17 02:40:25 +0100 | [diff] [blame] | 288 | if (ide_use_dma(drive) && config_chipset_for_dma(drive)) |
| 289 | return hwif->ide_dma_on(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | |
Bartlomiej Zolnierkiewicz | 7569e8d | 2007-02-17 02:40:25 +0100 | [diff] [blame] | 291 | if (ide_use_fast_pio(drive)) { |
Sergei Shtylyov | b10a068 | 2006-12-08 02:39:59 -0800 | [diff] [blame] | 292 | hwif->tuneproc(drive, 255); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | return hwif->ide_dma_off_quietly(drive); |
| 294 | } |
| 295 | /* IORDY not supported */ |
| 296 | return 0; |
| 297 | } |
| 298 | |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 299 | static int pdcnew_quirkproc(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | { |
Sergei Shtylyov | d24ec42 | 2007-02-07 18:18:39 +0100 | [diff] [blame] | 301 | const char **list, *model = drive->id->model; |
| 302 | |
| 303 | for (list = pdc_quirk_drives; *list != NULL; list++) |
| 304 | if (strstr(model, *list) != NULL) |
| 305 | return 2; |
| 306 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | } |
| 308 | |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 309 | static void pdcnew_reset(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | { |
| 311 | /* |
| 312 | * Deleted this because it is redundant from the caller. |
| 313 | */ |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 314 | printk(KERN_WARNING "pdc202xx_new: %s channel reset.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | HWIF(drive)->channel ? "Secondary" : "Primary"); |
| 316 | } |
| 317 | |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 318 | /** |
| 319 | * read_counter - Read the byte count registers |
| 320 | * @dma_base: for the port address |
| 321 | */ |
| 322 | static long __devinit read_counter(u32 dma_base) |
| 323 | { |
| 324 | u32 pri_dma_base = dma_base, sec_dma_base = dma_base + 0x08; |
| 325 | u8 cnt0, cnt1, cnt2, cnt3; |
| 326 | long count = 0, last; |
| 327 | int retry = 3; |
| 328 | |
| 329 | do { |
| 330 | last = count; |
| 331 | |
| 332 | /* Read the current count */ |
| 333 | outb(0x20, pri_dma_base + 0x01); |
| 334 | cnt0 = inb(pri_dma_base + 0x03); |
| 335 | outb(0x21, pri_dma_base + 0x01); |
| 336 | cnt1 = inb(pri_dma_base + 0x03); |
| 337 | outb(0x20, sec_dma_base + 0x01); |
| 338 | cnt2 = inb(sec_dma_base + 0x03); |
| 339 | outb(0x21, sec_dma_base + 0x01); |
| 340 | cnt3 = inb(sec_dma_base + 0x03); |
| 341 | |
| 342 | count = (cnt3 << 23) | (cnt2 << 15) | (cnt1 << 8) | cnt0; |
| 343 | |
| 344 | /* |
| 345 | * The 30-bit decrementing counter is read in 4 pieces. |
| 346 | * Incorrect value may be read when the most significant bytes |
| 347 | * are changing... |
| 348 | */ |
| 349 | } while (retry-- && (((last ^ count) & 0x3fff8000) || last < count)); |
| 350 | |
| 351 | DBG("cnt0[%02X] cnt1[%02X] cnt2[%02X] cnt3[%02X]\n", |
| 352 | cnt0, cnt1, cnt2, cnt3); |
| 353 | |
| 354 | return count; |
| 355 | } |
| 356 | |
| 357 | /** |
| 358 | * detect_pll_input_clock - Detect the PLL input clock in Hz. |
| 359 | * @dma_base: for the port address |
| 360 | * E.g. 16949000 on 33 MHz PCI bus, i.e. half of the PCI clock. |
| 361 | */ |
| 362 | static long __devinit detect_pll_input_clock(unsigned long dma_base) |
| 363 | { |
| 364 | long start_count, end_count; |
| 365 | long pll_input; |
| 366 | u8 scr1; |
| 367 | |
| 368 | start_count = read_counter(dma_base); |
| 369 | |
| 370 | /* Start the test mode */ |
| 371 | outb(0x01, dma_base + 0x01); |
| 372 | scr1 = inb(dma_base + 0x03); |
| 373 | DBG("scr1[%02X]\n", scr1); |
| 374 | outb(scr1 | 0x40, dma_base + 0x03); |
| 375 | |
| 376 | /* Let the counter run for 10 ms. */ |
| 377 | mdelay(10); |
| 378 | |
| 379 | end_count = read_counter(dma_base); |
| 380 | |
| 381 | /* Stop the test mode */ |
| 382 | outb(0x01, dma_base + 0x01); |
| 383 | scr1 = inb(dma_base + 0x03); |
| 384 | DBG("scr1[%02X]\n", scr1); |
| 385 | outb(scr1 & ~0x40, dma_base + 0x03); |
| 386 | |
| 387 | /* |
| 388 | * Calculate the input clock in Hz |
| 389 | * (the clock counter is 30 bit wide and counts down) |
| 390 | */ |
| 391 | pll_input = ((start_count - end_count) & 0x3ffffff) * 100; |
| 392 | |
| 393 | DBG("start[%ld] end[%ld]\n", start_count, end_count); |
| 394 | |
| 395 | return pll_input; |
| 396 | } |
| 397 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | #ifdef CONFIG_PPC_PMAC |
| 399 | static void __devinit apple_kiwi_init(struct pci_dev *pdev) |
| 400 | { |
| 401 | struct device_node *np = pci_device_to_OF_node(pdev); |
| 402 | unsigned int class_rev = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | u8 conf; |
| 404 | |
| 405 | if (np == NULL || !device_is_compatible(np, "kiwi-root")) |
| 406 | return; |
| 407 | |
| 408 | pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev); |
| 409 | class_rev &= 0xff; |
| 410 | |
| 411 | if (class_rev >= 0x03) { |
| 412 | /* Setup chip magic config stuff (from darwin) */ |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 413 | pci_read_config_byte (pdev, 0x40, &conf); |
| 414 | pci_write_config_byte(pdev, 0x40, (conf | 0x01)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | } |
| 417 | #endif /* CONFIG_PPC_PMAC */ |
| 418 | |
| 419 | static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev, const char *name) |
| 420 | { |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 421 | unsigned long dma_base = pci_resource_start(dev, 4); |
| 422 | unsigned long sec_dma_base = dma_base + 0x08; |
| 423 | long pll_input, pll_output, ratio; |
| 424 | int f, r; |
| 425 | u8 pll_ctl0, pll_ctl1; |
| 426 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | if (dev->resource[PCI_ROM_RESOURCE].start) { |
| 428 | pci_write_config_dword(dev, PCI_ROM_ADDRESS, |
| 429 | dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE); |
Greg Kroah-Hartman | 08f46de | 2006-06-12 15:15:59 -0700 | [diff] [blame] | 430 | printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n", name, |
| 431 | (unsigned long)dev->resource[PCI_ROM_RESOURCE].start); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | } |
| 433 | |
| 434 | #ifdef CONFIG_PPC_PMAC |
| 435 | apple_kiwi_init(dev); |
| 436 | #endif |
| 437 | |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 438 | /* Calculate the required PLL output frequency */ |
| 439 | switch(max_dma_rate(dev)) { |
| 440 | case 4: /* it's 133 MHz for Ultra133 chips */ |
| 441 | pll_output = 133333333; |
| 442 | break; |
| 443 | case 3: /* and 100 MHz for Ultra100 chips */ |
| 444 | default: |
| 445 | pll_output = 100000000; |
| 446 | break; |
| 447 | } |
| 448 | |
| 449 | /* |
| 450 | * Detect PLL input clock. |
| 451 | * On some systems, where PCI bus is running at non-standard clock rate |
| 452 | * (e.g. 25 or 40 MHz), we have to adjust the cycle time. |
| 453 | * PDC20268 and newer chips employ PLL circuit to help correct timing |
| 454 | * registers setting. |
| 455 | */ |
| 456 | pll_input = detect_pll_input_clock(dma_base); |
| 457 | printk("%s: PLL input clock is %ld kHz\n", name, pll_input / 1000); |
| 458 | |
| 459 | /* Sanity check */ |
| 460 | if (unlikely(pll_input < 5000000L || pll_input > 70000000L)) { |
| 461 | printk(KERN_ERR "%s: Bad PLL input clock %ld Hz, giving up!\n", |
| 462 | name, pll_input); |
| 463 | goto out; |
| 464 | } |
| 465 | |
| 466 | #ifdef DEBUG |
| 467 | DBG("pll_output is %ld Hz\n", pll_output); |
| 468 | |
| 469 | /* Show the current clock value of PLL control register |
| 470 | * (maybe already configured by the BIOS) |
| 471 | */ |
| 472 | outb(0x02, sec_dma_base + 0x01); |
| 473 | pll_ctl0 = inb(sec_dma_base + 0x03); |
| 474 | outb(0x03, sec_dma_base + 0x01); |
| 475 | pll_ctl1 = inb(sec_dma_base + 0x03); |
| 476 | |
| 477 | DBG("pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1); |
| 478 | #endif |
| 479 | |
| 480 | /* |
| 481 | * Calculate the ratio of F, R and NO |
| 482 | * POUT = (F + 2) / (( R + 2) * NO) |
| 483 | */ |
| 484 | ratio = pll_output / (pll_input / 1000); |
| 485 | if (ratio < 8600L) { /* 8.6x */ |
| 486 | /* Using NO = 0x01, R = 0x0d */ |
| 487 | r = 0x0d; |
| 488 | } else if (ratio < 12900L) { /* 12.9x */ |
| 489 | /* Using NO = 0x01, R = 0x08 */ |
| 490 | r = 0x08; |
| 491 | } else if (ratio < 16100L) { /* 16.1x */ |
| 492 | /* Using NO = 0x01, R = 0x06 */ |
| 493 | r = 0x06; |
| 494 | } else if (ratio < 64000L) { /* 64x */ |
| 495 | r = 0x00; |
| 496 | } else { |
| 497 | /* Invalid ratio */ |
| 498 | printk(KERN_ERR "%s: Bad ratio %ld, giving up!\n", name, ratio); |
| 499 | goto out; |
| 500 | } |
| 501 | |
| 502 | f = (ratio * (r + 2)) / 1000 - 2; |
| 503 | |
| 504 | DBG("F[%d] R[%d] ratio*1000[%ld]\n", f, r, ratio); |
| 505 | |
| 506 | if (unlikely(f < 0 || f > 127)) { |
| 507 | /* Invalid F */ |
| 508 | printk(KERN_ERR "%s: F[%d] invalid!\n", name, f); |
| 509 | goto out; |
| 510 | } |
| 511 | |
| 512 | pll_ctl0 = (u8) f; |
| 513 | pll_ctl1 = (u8) r; |
| 514 | |
| 515 | DBG("Writing pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1); |
| 516 | |
| 517 | outb(0x02, sec_dma_base + 0x01); |
| 518 | outb(pll_ctl0, sec_dma_base + 0x03); |
| 519 | outb(0x03, sec_dma_base + 0x01); |
| 520 | outb(pll_ctl1, sec_dma_base + 0x03); |
| 521 | |
| 522 | /* Wait the PLL circuit to be stable */ |
| 523 | mdelay(30); |
| 524 | |
| 525 | #ifdef DEBUG |
| 526 | /* |
| 527 | * Show the current clock value of PLL control register |
| 528 | */ |
| 529 | outb(0x02, sec_dma_base + 0x01); |
| 530 | pll_ctl0 = inb(sec_dma_base + 0x03); |
| 531 | outb(0x03, sec_dma_base + 0x01); |
| 532 | pll_ctl1 = inb(sec_dma_base + 0x03); |
| 533 | |
| 534 | DBG("pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1); |
| 535 | #endif |
| 536 | |
| 537 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | return dev->irq; |
| 539 | } |
| 540 | |
| 541 | static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif) |
| 542 | { |
| 543 | hwif->autodma = 0; |
| 544 | |
| 545 | hwif->tuneproc = &pdcnew_tune_drive; |
| 546 | hwif->quirkproc = &pdcnew_quirkproc; |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 547 | hwif->speedproc = &pdcnew_tune_chipset; |
| 548 | hwif->resetproc = &pdcnew_reset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | |
| 550 | hwif->drives[0].autotune = hwif->drives[1].autotune = 1; |
| 551 | |
| 552 | hwif->ultra_mask = 0x7f; |
| 553 | hwif->mwdma_mask = 0x07; |
| 554 | |
Alan Cox | 3706a87 | 2006-06-28 04:27:03 -0700 | [diff] [blame] | 555 | hwif->err_stops_fifo = 1; |
| 556 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate; |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 558 | |
| 559 | if (!hwif->udma_four) |
| 560 | hwif->udma_four = pdcnew_cable_detect(hwif) ? 0 : 1; |
| 561 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 562 | if (!noautodma) |
| 563 | hwif->autodma = 1; |
| 564 | hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma; |
Sergei Shtylyov | 47694bb | 2006-12-10 02:19:13 -0800 | [diff] [blame] | 565 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | #if PDC202_DEBUG_CABLE |
| 567 | printk(KERN_DEBUG "%s: %s-pin cable\n", |
| 568 | hwif->name, hwif->udma_four ? "80" : "40"); |
| 569 | #endif /* PDC202_DEBUG_CABLE */ |
| 570 | } |
| 571 | |
| 572 | static int __devinit init_setup_pdcnew(struct pci_dev *dev, ide_pci_device_t *d) |
| 573 | { |
| 574 | return ide_setup_pci_device(dev, d); |
| 575 | } |
| 576 | |
| 577 | static int __devinit init_setup_pdc20270(struct pci_dev *dev, |
| 578 | ide_pci_device_t *d) |
| 579 | { |
| 580 | struct pci_dev *findev = NULL; |
Alan Cox | b148900 | 2006-12-08 02:39:58 -0800 | [diff] [blame] | 581 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | |
| 583 | if ((dev->bus->self && |
| 584 | dev->bus->self->vendor == PCI_VENDOR_ID_DEC) && |
| 585 | (dev->bus->self->device == PCI_DEVICE_ID_DEC_21150)) { |
| 586 | if (PCI_SLOT(dev->devfn) & 2) |
| 587 | return -ENODEV; |
| 588 | d->extra = 0; |
Alan Cox | b148900 | 2006-12-08 02:39:58 -0800 | [diff] [blame] | 589 | while ((findev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | if ((findev->vendor == dev->vendor) && |
| 591 | (findev->device == dev->device) && |
| 592 | (PCI_SLOT(findev->devfn) & 2)) { |
| 593 | if (findev->irq != dev->irq) { |
| 594 | findev->irq = dev->irq; |
| 595 | } |
Alan Cox | b148900 | 2006-12-08 02:39:58 -0800 | [diff] [blame] | 596 | ret = ide_setup_pci_devices(dev, findev, d); |
| 597 | pci_dev_put(findev); |
| 598 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | } |
| 600 | } |
| 601 | } |
| 602 | return ide_setup_pci_device(dev, d); |
| 603 | } |
| 604 | |
| 605 | static int __devinit init_setup_pdc20276(struct pci_dev *dev, |
| 606 | ide_pci_device_t *d) |
| 607 | { |
| 608 | if ((dev->bus->self) && |
| 609 | (dev->bus->self->vendor == PCI_VENDOR_ID_INTEL) && |
| 610 | ((dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960) || |
| 611 | (dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960RM))) { |
| 612 | printk(KERN_INFO "ide: Skipping Promise PDC20276 " |
| 613 | "attached to I2O RAID controller.\n"); |
| 614 | return -ENODEV; |
| 615 | } |
| 616 | return ide_setup_pci_device(dev, d); |
| 617 | } |
| 618 | |
| 619 | static ide_pci_device_t pdcnew_chipsets[] __devinitdata = { |
| 620 | { /* 0 */ |
| 621 | .name = "PDC20268", |
| 622 | .init_setup = init_setup_pdcnew, |
| 623 | .init_chipset = init_chipset_pdcnew, |
| 624 | .init_hwif = init_hwif_pdc202new, |
| 625 | .channels = 2, |
| 626 | .autodma = AUTODMA, |
| 627 | .bootable = OFF_BOARD, |
| 628 | },{ /* 1 */ |
| 629 | .name = "PDC20269", |
| 630 | .init_setup = init_setup_pdcnew, |
| 631 | .init_chipset = init_chipset_pdcnew, |
| 632 | .init_hwif = init_hwif_pdc202new, |
| 633 | .channels = 2, |
| 634 | .autodma = AUTODMA, |
| 635 | .bootable = OFF_BOARD, |
| 636 | },{ /* 2 */ |
| 637 | .name = "PDC20270", |
| 638 | .init_setup = init_setup_pdc20270, |
| 639 | .init_chipset = init_chipset_pdcnew, |
| 640 | .init_hwif = init_hwif_pdc202new, |
| 641 | .channels = 2, |
| 642 | .autodma = AUTODMA, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | .bootable = OFF_BOARD, |
| 644 | },{ /* 3 */ |
| 645 | .name = "PDC20271", |
| 646 | .init_setup = init_setup_pdcnew, |
| 647 | .init_chipset = init_chipset_pdcnew, |
| 648 | .init_hwif = init_hwif_pdc202new, |
| 649 | .channels = 2, |
| 650 | .autodma = AUTODMA, |
| 651 | .bootable = OFF_BOARD, |
| 652 | },{ /* 4 */ |
| 653 | .name = "PDC20275", |
| 654 | .init_setup = init_setup_pdcnew, |
| 655 | .init_chipset = init_chipset_pdcnew, |
| 656 | .init_hwif = init_hwif_pdc202new, |
| 657 | .channels = 2, |
| 658 | .autodma = AUTODMA, |
| 659 | .bootable = OFF_BOARD, |
| 660 | },{ /* 5 */ |
| 661 | .name = "PDC20276", |
| 662 | .init_setup = init_setup_pdc20276, |
| 663 | .init_chipset = init_chipset_pdcnew, |
| 664 | .init_hwif = init_hwif_pdc202new, |
| 665 | .channels = 2, |
| 666 | .autodma = AUTODMA, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | .bootable = OFF_BOARD, |
| 668 | },{ /* 6 */ |
| 669 | .name = "PDC20277", |
| 670 | .init_setup = init_setup_pdcnew, |
| 671 | .init_chipset = init_chipset_pdcnew, |
| 672 | .init_hwif = init_hwif_pdc202new, |
| 673 | .channels = 2, |
| 674 | .autodma = AUTODMA, |
| 675 | .bootable = OFF_BOARD, |
| 676 | } |
| 677 | }; |
| 678 | |
| 679 | /** |
| 680 | * pdc202new_init_one - called when a pdc202xx is found |
| 681 | * @dev: the pdc202new device |
| 682 | * @id: the matching pci id |
| 683 | * |
| 684 | * Called when the PCI registration layer (or the IDE initialization) |
| 685 | * finds a device matching our IDE device tables. |
| 686 | */ |
| 687 | |
| 688 | static int __devinit pdc202new_init_one(struct pci_dev *dev, const struct pci_device_id *id) |
| 689 | { |
| 690 | ide_pci_device_t *d = &pdcnew_chipsets[id->driver_data]; |
| 691 | |
| 692 | return d->init_setup(dev, d); |
| 693 | } |
| 694 | |
| 695 | static struct pci_device_id pdc202new_pci_tbl[] = { |
| 696 | { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, |
| 697 | { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20269, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1}, |
| 698 | { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20270, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2}, |
| 699 | { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20271, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3}, |
| 700 | { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20275, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4}, |
| 701 | { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20276, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5}, |
| 702 | { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20277, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6}, |
| 703 | { 0, }, |
| 704 | }; |
| 705 | MODULE_DEVICE_TABLE(pci, pdc202new_pci_tbl); |
| 706 | |
| 707 | static struct pci_driver driver = { |
| 708 | .name = "Promise_IDE", |
| 709 | .id_table = pdc202new_pci_tbl, |
| 710 | .probe = pdc202new_init_one, |
| 711 | }; |
| 712 | |
Bartlomiej Zolnierkiewicz | 82ab1ee | 2007-01-27 13:46:56 +0100 | [diff] [blame] | 713 | static int __init pdc202new_ide_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | { |
| 715 | return ide_pci_register_driver(&driver); |
| 716 | } |
| 717 | |
| 718 | module_init(pdc202new_ide_init); |
| 719 | |
| 720 | MODULE_AUTHOR("Andre Hedrick, Frank Tiernan"); |
| 721 | MODULE_DESCRIPTION("PCI driver module for Promise PDC20268 and higher"); |
| 722 | MODULE_LICENSE("GPL"); |