Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1 | /* |
| 2 | * pata-legacy.c - Legacy port PATA/SATA controller driver. |
| 3 | * Copyright 2005/2006 Red Hat <alan@redhat.com>, all rights reserved. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2, or (at your option) |
| 8 | * any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; see the file COPYING. If not, write to |
| 17 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 18 | * |
| 19 | * An ATA driver for the legacy ATA ports. |
| 20 | * |
| 21 | * Data Sources: |
| 22 | * Opti 82C465/82C611 support: Data sheets at opti-inc.com |
| 23 | * HT6560 series: |
| 24 | * Promise 20230/20620: |
| 25 | * http://www.ryston.cz/petr/vlb/pdc20230b.html |
| 26 | * http://www.ryston.cz/petr/vlb/pdc20230c.html |
| 27 | * http://www.ryston.cz/petr/vlb/pdc20630.html |
| 28 | * |
| 29 | * Unsupported but docs exist: |
| 30 | * Appian/Adaptec AIC25VL01/Cirrus Logic PD7220 |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 31 | * |
| 32 | * This driver handles legacy (that is "ISA/VLB side") IDE ports found |
| 33 | * on PC class systems. There are three hybrid devices that are exceptions |
| 34 | * The Cyrix 5510/5520 where a pre SFF ATA device is on the bridge and |
| 35 | * the MPIIX where the tuning is PCI side but the IDE is "ISA side". |
| 36 | * |
| 37 | * Specific support is included for the ht6560a/ht6560b/opti82c611a/ |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 38 | * opti82c465mv/promise 20230c/20630/winbond83759A |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 39 | * |
| 40 | * Use the autospeed and pio_mask options with: |
| 41 | * Appian ADI/2 aka CLPD7220 or AIC25VL01. |
| 42 | * Use the jumpers, autospeed and set pio_mask to the mode on the jumpers with |
| 43 | * Goldstar GM82C711, PIC-1288A-125, UMC 82C871F, Winbond W83759, |
| 44 | * Winbond W83759A, Promise PDC20230-B |
| 45 | * |
| 46 | * For now use autospeed and pio_mask as above with the W83759A. This may |
| 47 | * change. |
| 48 | * |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 49 | */ |
| 50 | |
| 51 | #include <linux/kernel.h> |
| 52 | #include <linux/module.h> |
| 53 | #include <linux/pci.h> |
| 54 | #include <linux/init.h> |
| 55 | #include <linux/blkdev.h> |
| 56 | #include <linux/delay.h> |
| 57 | #include <scsi/scsi_host.h> |
| 58 | #include <linux/ata.h> |
| 59 | #include <linux/libata.h> |
| 60 | #include <linux/platform_device.h> |
| 61 | |
| 62 | #define DRV_NAME "pata_legacy" |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 63 | #define DRV_VERSION "0.6.5" |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 64 | |
| 65 | #define NR_HOST 6 |
| 66 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 67 | static int all; |
| 68 | module_param(all, int, 0444); |
| 69 | MODULE_PARM_DESC(all, "Grab all legacy port devices, even if PCI(0=off, 1=on)"); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 70 | |
| 71 | struct legacy_data { |
| 72 | unsigned long timing; |
| 73 | u8 clock[2]; |
| 74 | u8 last; |
| 75 | int fast; |
| 76 | struct platform_device *platform_dev; |
| 77 | |
| 78 | }; |
| 79 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 80 | enum controller { |
| 81 | BIOS = 0, |
| 82 | SNOOP = 1, |
| 83 | PDC20230 = 2, |
| 84 | HT6560A = 3, |
| 85 | HT6560B = 4, |
| 86 | OPTI611A = 5, |
| 87 | OPTI46X = 6, |
| 88 | QDI6500 = 7, |
| 89 | QDI6580 = 8, |
| 90 | QDI6580DP = 9, /* Dual channel mode is different */ |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 91 | W83759A = 10, |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 92 | |
| 93 | UNKNOWN = -1 |
| 94 | }; |
| 95 | |
| 96 | |
| 97 | struct legacy_probe { |
| 98 | unsigned char *name; |
| 99 | unsigned long port; |
| 100 | unsigned int irq; |
| 101 | unsigned int slot; |
| 102 | enum controller type; |
| 103 | unsigned long private; |
| 104 | }; |
| 105 | |
| 106 | struct legacy_controller { |
| 107 | const char *name; |
| 108 | struct ata_port_operations *ops; |
| 109 | unsigned int pio_mask; |
| 110 | unsigned int flags; |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 111 | int (*setup)(struct platform_device *, struct legacy_probe *probe, |
| 112 | struct legacy_data *data); |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 113 | }; |
| 114 | |
| 115 | static int legacy_port[NR_HOST] = { 0x1f0, 0x170, 0x1e8, 0x168, 0x1e0, 0x160 }; |
| 116 | |
| 117 | static struct legacy_probe probe_list[NR_HOST]; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 118 | static struct legacy_data legacy_data[NR_HOST]; |
| 119 | static struct ata_host *legacy_host[NR_HOST]; |
| 120 | static int nr_legacy_host; |
| 121 | |
| 122 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 123 | static int probe_all; /* Set to check all ISA port ranges */ |
| 124 | static int ht6560a; /* HT 6560A on primary 1, second 2, both 3 */ |
| 125 | static int ht6560b; /* HT 6560A on primary 1, second 2, both 3 */ |
| 126 | static int opti82c611a; /* Opti82c611A on primary 1, sec 2, both 3 */ |
| 127 | static int opti82c46x; /* Opti 82c465MV present(pri/sec autodetect) */ |
| 128 | static int qdi; /* Set to probe QDI controllers */ |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 129 | static int winbond; /* Set to probe Winbond controllers, |
| 130 | give I/O port if non stdanard */ |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 131 | static int autospeed; /* Chip present which snoops speed changes */ |
| 132 | static int pio_mask = 0x1F; /* PIO range for autospeed devices */ |
Alan Cox | f834e49 | 2007-02-07 13:46:00 -0800 | [diff] [blame] | 133 | static int iordy_mask = 0xFFFFFFFF; /* Use iordy if available */ |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 134 | |
| 135 | /** |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 136 | * legacy_probe_add - Add interface to probe list |
| 137 | * @port: Controller port |
| 138 | * @irq: IRQ number |
| 139 | * @type: Controller type |
| 140 | * @private: Controller specific info |
| 141 | * |
| 142 | * Add an entry into the probe list for ATA controllers. This is used |
| 143 | * to add the default ISA slots and then to build up the table |
| 144 | * further according to other ISA/VLB/Weird device scans |
| 145 | * |
| 146 | * An I/O port list is used to keep ordering stable and sane, as we |
| 147 | * don't have any good way to talk about ordering otherwise |
| 148 | */ |
| 149 | |
| 150 | static int legacy_probe_add(unsigned long port, unsigned int irq, |
| 151 | enum controller type, unsigned long private) |
| 152 | { |
| 153 | struct legacy_probe *lp = &probe_list[0]; |
| 154 | int i; |
| 155 | struct legacy_probe *free = NULL; |
| 156 | |
| 157 | for (i = 0; i < NR_HOST; i++) { |
| 158 | if (lp->port == 0 && free == NULL) |
| 159 | free = lp; |
| 160 | /* Matching port, or the correct slot for ordering */ |
| 161 | if (lp->port == port || legacy_port[i] == port) { |
| 162 | free = lp; |
| 163 | break; |
| 164 | } |
| 165 | lp++; |
| 166 | } |
| 167 | if (free == NULL) { |
| 168 | printk(KERN_ERR "pata_legacy: Too many interfaces.\n"); |
| 169 | return -1; |
| 170 | } |
| 171 | /* Fill in the entry for later probing */ |
| 172 | free->port = port; |
| 173 | free->irq = irq; |
| 174 | free->type = type; |
| 175 | free->private = private; |
| 176 | return 0; |
| 177 | } |
| 178 | |
| 179 | |
| 180 | /** |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 181 | * legacy_set_mode - mode setting |
Tejun Heo | 0260731 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 182 | * @link: IDE link |
Alan | b229a7b | 2007-01-24 11:47:07 +0000 | [diff] [blame] | 183 | * @unused: Device that failed when error is returned |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 184 | * |
| 185 | * Use a non standard set_mode function. We don't want to be tuned. |
| 186 | * |
| 187 | * The BIOS configured everything. Our job is not to fiddle. Just use |
| 188 | * whatever PIO the hardware is using and leave it at that. When we |
| 189 | * get some kind of nice user driven API for control then we can |
| 190 | * expand on this as per hdparm in the base kernel. |
| 191 | */ |
| 192 | |
Tejun Heo | 0260731 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 193 | static int legacy_set_mode(struct ata_link *link, struct ata_device **unused) |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 194 | { |
Tejun Heo | f58229f | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 195 | struct ata_device *dev; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 196 | |
Tejun Heo | 0260731 | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 197 | ata_link_for_each_dev(dev, link) { |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 198 | if (ata_dev_enabled(dev)) { |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 199 | ata_dev_printk(dev, KERN_INFO, |
| 200 | "configured for PIO\n"); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 201 | dev->pio_mode = XFER_PIO_0; |
| 202 | dev->xfer_mode = XFER_PIO_0; |
| 203 | dev->xfer_shift = ATA_SHIFT_PIO; |
| 204 | dev->flags |= ATA_DFLAG_PIO; |
| 205 | } |
| 206 | } |
Alan | b229a7b | 2007-01-24 11:47:07 +0000 | [diff] [blame] | 207 | return 0; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 208 | } |
| 209 | |
| 210 | static struct scsi_host_template legacy_sht = { |
| 211 | .module = THIS_MODULE, |
| 212 | .name = DRV_NAME, |
| 213 | .ioctl = ata_scsi_ioctl, |
| 214 | .queuecommand = ata_scsi_queuecmd, |
| 215 | .can_queue = ATA_DEF_QUEUE, |
| 216 | .this_id = ATA_SHT_THIS_ID, |
| 217 | .sg_tablesize = LIBATA_MAX_PRD, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 218 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
| 219 | .emulated = ATA_SHT_EMULATED, |
| 220 | .use_clustering = ATA_SHT_USE_CLUSTERING, |
| 221 | .proc_name = DRV_NAME, |
| 222 | .dma_boundary = ATA_DMA_BOUNDARY, |
| 223 | .slave_configure = ata_scsi_slave_config, |
Tejun Heo | afdfe89 | 2006-11-29 11:26:47 +0900 | [diff] [blame] | 224 | .slave_destroy = ata_scsi_slave_destroy, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 225 | .bios_param = ata_std_bios_param, |
| 226 | }; |
| 227 | |
| 228 | /* |
| 229 | * These ops are used if the user indicates the hardware |
| 230 | * snoops the commands to decide on the mode and handles the |
| 231 | * mode selection "magically" itself. Several legacy controllers |
| 232 | * do this. The mode range can be set if it is not 0x1F by setting |
| 233 | * pio_mask as well. |
| 234 | */ |
| 235 | |
| 236 | static struct ata_port_operations simple_port_ops = { |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 237 | .tf_load = ata_tf_load, |
| 238 | .tf_read = ata_tf_read, |
| 239 | .check_status = ata_check_status, |
| 240 | .exec_command = ata_exec_command, |
| 241 | .dev_select = ata_std_dev_select, |
| 242 | |
| 243 | .freeze = ata_bmdma_freeze, |
| 244 | .thaw = ata_bmdma_thaw, |
| 245 | .error_handler = ata_bmdma_error_handler, |
| 246 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
Jeff Garzik | a73984a | 2007-03-09 08:37:46 -0500 | [diff] [blame] | 247 | .cable_detect = ata_cable_40wire, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 248 | |
| 249 | .qc_prep = ata_qc_prep, |
| 250 | .qc_issue = ata_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 251 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 252 | .data_xfer = ata_data_xfer_noirq, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 253 | |
| 254 | .irq_handler = ata_interrupt, |
| 255 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 256 | .irq_on = ata_irq_on, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 257 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 258 | .port_start = ata_sff_port_start, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 259 | }; |
| 260 | |
| 261 | static struct ata_port_operations legacy_port_ops = { |
| 262 | .set_mode = legacy_set_mode, |
| 263 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 264 | .tf_load = ata_tf_load, |
| 265 | .tf_read = ata_tf_read, |
| 266 | .check_status = ata_check_status, |
| 267 | .exec_command = ata_exec_command, |
| 268 | .dev_select = ata_std_dev_select, |
Jeff Garzik | a73984a | 2007-03-09 08:37:46 -0500 | [diff] [blame] | 269 | .cable_detect = ata_cable_40wire, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 270 | |
Jeff Garzik | bf7551c | 2007-03-02 18:09:05 -0500 | [diff] [blame] | 271 | .freeze = ata_bmdma_freeze, |
| 272 | .thaw = ata_bmdma_thaw, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 273 | .error_handler = ata_bmdma_error_handler, |
Jeff Garzik | bf7551c | 2007-03-02 18:09:05 -0500 | [diff] [blame] | 274 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 275 | |
| 276 | .qc_prep = ata_qc_prep, |
| 277 | .qc_issue = ata_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 278 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 279 | .data_xfer = ata_data_xfer_noirq, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 280 | |
| 281 | .irq_handler = ata_interrupt, |
| 282 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 283 | .irq_on = ata_irq_on, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 284 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 285 | .port_start = ata_sff_port_start, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 286 | }; |
| 287 | |
| 288 | /* |
| 289 | * Promise 20230C and 20620 support |
| 290 | * |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 291 | * This controller supports PIO0 to PIO2. We set PIO timings |
| 292 | * conservatively to allow for 50MHz Vesa Local Bus. The 20620 DMA |
| 293 | * support is weird being DMA to controller and PIO'd to the host |
| 294 | * and not supported. |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 295 | */ |
| 296 | |
| 297 | static void pdc20230_set_piomode(struct ata_port *ap, struct ata_device *adev) |
| 298 | { |
| 299 | int tries = 5; |
| 300 | int pio = adev->pio_mode - XFER_PIO_0; |
| 301 | u8 rt; |
| 302 | unsigned long flags; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 303 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 304 | /* Safe as UP only. Force I/Os to occur together */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 305 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 306 | local_irq_save(flags); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 307 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 308 | /* Unlock the control interface */ |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 309 | do { |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 310 | inb(0x1F5); |
| 311 | outb(inb(0x1F2) | 0x80, 0x1F2); |
| 312 | inb(0x1F2); |
| 313 | inb(0x3F6); |
| 314 | inb(0x3F6); |
| 315 | inb(0x1F2); |
| 316 | inb(0x1F2); |
| 317 | } |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 318 | while ((inb(0x1F2) & 0x80) && --tries); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 319 | |
| 320 | local_irq_restore(flags); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 321 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 322 | outb(inb(0x1F4) & 0x07, 0x1F4); |
| 323 | |
| 324 | rt = inb(0x1F3); |
| 325 | rt &= 0x07 << (3 * adev->devno); |
| 326 | if (pio) |
| 327 | rt |= (1 + 3 * pio) << (3 * adev->devno); |
| 328 | |
| 329 | udelay(100); |
| 330 | outb(inb(0x1F2) | 0x01, 0x1F2); |
| 331 | udelay(100); |
| 332 | inb(0x1F5); |
| 333 | |
| 334 | } |
| 335 | |
Tejun Heo | 55dba31 | 2007-12-05 16:43:07 +0900 | [diff] [blame] | 336 | static unsigned int pdc_data_xfer_vlb(struct ata_device *dev, |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 337 | unsigned char *buf, unsigned int buflen, int rw) |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 338 | { |
Andrew Morton | c294f1b | 2008-01-15 15:42:37 -0800 | [diff] [blame] | 339 | if (ata_id_has_dword_io(dev->id)) { |
Tejun Heo | 55dba31 | 2007-12-05 16:43:07 +0900 | [diff] [blame] | 340 | struct ata_port *ap = dev->link->ap; |
| 341 | int slop = buflen & 3; |
| 342 | unsigned long flags; |
| 343 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 344 | local_irq_save(flags); |
| 345 | |
| 346 | /* Perform the 32bit I/O synchronization sequence */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 347 | ioread8(ap->ioaddr.nsect_addr); |
| 348 | ioread8(ap->ioaddr.nsect_addr); |
| 349 | ioread8(ap->ioaddr.nsect_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 350 | |
| 351 | /* Now the data */ |
Tejun Heo | 55dba31 | 2007-12-05 16:43:07 +0900 | [diff] [blame] | 352 | if (rw == READ) |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 353 | ioread32_rep(ap->ioaddr.data_addr, buf, buflen >> 2); |
Tejun Heo | 55dba31 | 2007-12-05 16:43:07 +0900 | [diff] [blame] | 354 | else |
| 355 | iowrite32_rep(ap->ioaddr.data_addr, buf, buflen >> 2); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 356 | |
| 357 | if (unlikely(slop)) { |
Tejun Heo | 55dba31 | 2007-12-05 16:43:07 +0900 | [diff] [blame] | 358 | u32 pad; |
| 359 | if (rw == READ) { |
Al Viro | b50e56d | 2008-01-12 14:16:14 +0000 | [diff] [blame] | 360 | pad = cpu_to_le32(ioread32(ap->ioaddr.data_addr)); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 361 | memcpy(buf + buflen - slop, &pad, slop); |
Tejun Heo | 55dba31 | 2007-12-05 16:43:07 +0900 | [diff] [blame] | 362 | } else { |
| 363 | memcpy(&pad, buf + buflen - slop, slop); |
| 364 | iowrite32(le32_to_cpu(pad), ap->ioaddr.data_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 365 | } |
Tejun Heo | 55dba31 | 2007-12-05 16:43:07 +0900 | [diff] [blame] | 366 | buflen += 4 - slop; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 367 | } |
| 368 | local_irq_restore(flags); |
Tejun Heo | 55dba31 | 2007-12-05 16:43:07 +0900 | [diff] [blame] | 369 | } else |
| 370 | buflen = ata_data_xfer_noirq(dev, buf, buflen, rw); |
| 371 | |
| 372 | return buflen; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 373 | } |
| 374 | |
| 375 | static struct ata_port_operations pdc20230_port_ops = { |
| 376 | .set_piomode = pdc20230_set_piomode, |
| 377 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 378 | .tf_load = ata_tf_load, |
| 379 | .tf_read = ata_tf_read, |
| 380 | .check_status = ata_check_status, |
| 381 | .exec_command = ata_exec_command, |
| 382 | .dev_select = ata_std_dev_select, |
| 383 | |
Jeff Garzik | bf7551c | 2007-03-02 18:09:05 -0500 | [diff] [blame] | 384 | .freeze = ata_bmdma_freeze, |
| 385 | .thaw = ata_bmdma_thaw, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 386 | .error_handler = ata_bmdma_error_handler, |
Jeff Garzik | bf7551c | 2007-03-02 18:09:05 -0500 | [diff] [blame] | 387 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
Jeff Garzik | a73984a | 2007-03-09 08:37:46 -0500 | [diff] [blame] | 388 | .cable_detect = ata_cable_40wire, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 389 | |
| 390 | .qc_prep = ata_qc_prep, |
| 391 | .qc_issue = ata_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 392 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 393 | .data_xfer = pdc_data_xfer_vlb, |
| 394 | |
| 395 | .irq_handler = ata_interrupt, |
| 396 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 397 | .irq_on = ata_irq_on, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 398 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 399 | .port_start = ata_sff_port_start, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 400 | }; |
| 401 | |
| 402 | /* |
| 403 | * Holtek 6560A support |
| 404 | * |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 405 | * This controller supports PIO0 to PIO2 (no IORDY even though higher |
| 406 | * timings can be loaded). |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 407 | */ |
| 408 | |
| 409 | static void ht6560a_set_piomode(struct ata_port *ap, struct ata_device *adev) |
| 410 | { |
| 411 | u8 active, recover; |
| 412 | struct ata_timing t; |
| 413 | |
| 414 | /* Get the timing data in cycles. For now play safe at 50Mhz */ |
| 415 | ata_timing_compute(adev, adev->pio_mode, &t, 20000, 1000); |
| 416 | |
| 417 | active = FIT(t.active, 2, 15); |
| 418 | recover = FIT(t.recover, 4, 15); |
| 419 | |
| 420 | inb(0x3E6); |
| 421 | inb(0x3E6); |
| 422 | inb(0x3E6); |
| 423 | inb(0x3E6); |
| 424 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 425 | iowrite8(recover << 4 | active, ap->ioaddr.device_addr); |
| 426 | ioread8(ap->ioaddr.status_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 427 | } |
| 428 | |
| 429 | static struct ata_port_operations ht6560a_port_ops = { |
| 430 | .set_piomode = ht6560a_set_piomode, |
| 431 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 432 | .tf_load = ata_tf_load, |
| 433 | .tf_read = ata_tf_read, |
| 434 | .check_status = ata_check_status, |
| 435 | .exec_command = ata_exec_command, |
| 436 | .dev_select = ata_std_dev_select, |
| 437 | |
Jeff Garzik | bf7551c | 2007-03-02 18:09:05 -0500 | [diff] [blame] | 438 | .freeze = ata_bmdma_freeze, |
| 439 | .thaw = ata_bmdma_thaw, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 440 | .error_handler = ata_bmdma_error_handler, |
Jeff Garzik | bf7551c | 2007-03-02 18:09:05 -0500 | [diff] [blame] | 441 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
Jeff Garzik | a73984a | 2007-03-09 08:37:46 -0500 | [diff] [blame] | 442 | .cable_detect = ata_cable_40wire, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 443 | |
| 444 | .qc_prep = ata_qc_prep, |
| 445 | .qc_issue = ata_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 446 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 447 | .data_xfer = ata_data_xfer, /* Check vlb/noirq */ |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 448 | |
| 449 | .irq_handler = ata_interrupt, |
| 450 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 451 | .irq_on = ata_irq_on, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 452 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 453 | .port_start = ata_sff_port_start, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 454 | }; |
| 455 | |
| 456 | /* |
| 457 | * Holtek 6560B support |
| 458 | * |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 459 | * This controller supports PIO0 to PIO4. We honour the BIOS/jumper FIFO |
| 460 | * setting unless we see an ATAPI device in which case we force it off. |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 461 | * |
| 462 | * FIXME: need to implement 2nd channel support. |
| 463 | */ |
| 464 | |
| 465 | static void ht6560b_set_piomode(struct ata_port *ap, struct ata_device *adev) |
| 466 | { |
| 467 | u8 active, recover; |
| 468 | struct ata_timing t; |
| 469 | |
| 470 | /* Get the timing data in cycles. For now play safe at 50Mhz */ |
| 471 | ata_timing_compute(adev, adev->pio_mode, &t, 20000, 1000); |
| 472 | |
| 473 | active = FIT(t.active, 2, 15); |
| 474 | recover = FIT(t.recover, 2, 16); |
| 475 | recover &= 0x15; |
| 476 | |
| 477 | inb(0x3E6); |
| 478 | inb(0x3E6); |
| 479 | inb(0x3E6); |
| 480 | inb(0x3E6); |
| 481 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 482 | iowrite8(recover << 4 | active, ap->ioaddr.device_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 483 | |
| 484 | if (adev->class != ATA_DEV_ATA) { |
| 485 | u8 rconf = inb(0x3E6); |
| 486 | if (rconf & 0x24) { |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 487 | rconf &= ~0x24; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 488 | outb(rconf, 0x3E6); |
| 489 | } |
| 490 | } |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 491 | ioread8(ap->ioaddr.status_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 492 | } |
| 493 | |
| 494 | static struct ata_port_operations ht6560b_port_ops = { |
| 495 | .set_piomode = ht6560b_set_piomode, |
| 496 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 497 | .tf_load = ata_tf_load, |
| 498 | .tf_read = ata_tf_read, |
| 499 | .check_status = ata_check_status, |
| 500 | .exec_command = ata_exec_command, |
| 501 | .dev_select = ata_std_dev_select, |
| 502 | |
Jeff Garzik | bf7551c | 2007-03-02 18:09:05 -0500 | [diff] [blame] | 503 | .freeze = ata_bmdma_freeze, |
| 504 | .thaw = ata_bmdma_thaw, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 505 | .error_handler = ata_bmdma_error_handler, |
Jeff Garzik | bf7551c | 2007-03-02 18:09:05 -0500 | [diff] [blame] | 506 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
Jeff Garzik | a73984a | 2007-03-09 08:37:46 -0500 | [diff] [blame] | 507 | .cable_detect = ata_cable_40wire, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 508 | |
| 509 | .qc_prep = ata_qc_prep, |
| 510 | .qc_issue = ata_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 511 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 512 | .data_xfer = ata_data_xfer, /* FIXME: Check 32bit and noirq */ |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 513 | |
| 514 | .irq_handler = ata_interrupt, |
| 515 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 516 | .irq_on = ata_irq_on, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 517 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 518 | .port_start = ata_sff_port_start, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 519 | }; |
| 520 | |
| 521 | /* |
| 522 | * Opti core chipset helpers |
| 523 | */ |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 524 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 525 | /** |
| 526 | * opti_syscfg - read OPTI chipset configuration |
| 527 | * @reg: Configuration register to read |
| 528 | * |
| 529 | * Returns the value of an OPTI system board configuration register. |
| 530 | */ |
| 531 | |
| 532 | static u8 opti_syscfg(u8 reg) |
| 533 | { |
| 534 | unsigned long flags; |
| 535 | u8 r; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 536 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 537 | /* Uniprocessor chipset and must force cycles adjancent */ |
| 538 | local_irq_save(flags); |
| 539 | outb(reg, 0x22); |
| 540 | r = inb(0x24); |
| 541 | local_irq_restore(flags); |
| 542 | return r; |
| 543 | } |
| 544 | |
| 545 | /* |
| 546 | * Opti 82C611A |
| 547 | * |
| 548 | * This controller supports PIO0 to PIO3. |
| 549 | */ |
| 550 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 551 | static void opti82c611a_set_piomode(struct ata_port *ap, |
| 552 | struct ata_device *adev) |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 553 | { |
| 554 | u8 active, recover, setup; |
| 555 | struct ata_timing t; |
| 556 | struct ata_device *pair = ata_dev_pair(adev); |
| 557 | int clock; |
| 558 | int khz[4] = { 50000, 40000, 33000, 25000 }; |
| 559 | u8 rc; |
| 560 | |
| 561 | /* Enter configuration mode */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 562 | ioread16(ap->ioaddr.error_addr); |
| 563 | ioread16(ap->ioaddr.error_addr); |
| 564 | iowrite8(3, ap->ioaddr.nsect_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 565 | |
| 566 | /* Read VLB clock strapping */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 567 | clock = 1000000000 / khz[ioread8(ap->ioaddr.lbah_addr) & 0x03]; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 568 | |
| 569 | /* Get the timing data in cycles */ |
| 570 | ata_timing_compute(adev, adev->pio_mode, &t, clock, 1000); |
| 571 | |
| 572 | /* Setup timing is shared */ |
| 573 | if (pair) { |
| 574 | struct ata_timing tp; |
| 575 | ata_timing_compute(pair, pair->pio_mode, &tp, clock, 1000); |
| 576 | |
| 577 | ata_timing_merge(&t, &tp, &t, ATA_TIMING_SETUP); |
| 578 | } |
| 579 | |
| 580 | active = FIT(t.active, 2, 17) - 2; |
| 581 | recover = FIT(t.recover, 1, 16) - 1; |
| 582 | setup = FIT(t.setup, 1, 4) - 1; |
| 583 | |
| 584 | /* Select the right timing bank for write timing */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 585 | rc = ioread8(ap->ioaddr.lbal_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 586 | rc &= 0x7F; |
| 587 | rc |= (adev->devno << 7); |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 588 | iowrite8(rc, ap->ioaddr.lbal_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 589 | |
| 590 | /* Write the timings */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 591 | iowrite8(active << 4 | recover, ap->ioaddr.error_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 592 | |
| 593 | /* Select the right bank for read timings, also |
| 594 | load the shared timings for address */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 595 | rc = ioread8(ap->ioaddr.device_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 596 | rc &= 0xC0; |
| 597 | rc |= adev->devno; /* Index select */ |
| 598 | rc |= (setup << 4) | 0x04; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 599 | iowrite8(rc, ap->ioaddr.device_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 600 | |
| 601 | /* Load the read timings */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 602 | iowrite8(active << 4 | recover, ap->ioaddr.data_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 603 | |
| 604 | /* Ensure the timing register mode is right */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 605 | rc = ioread8(ap->ioaddr.lbal_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 606 | rc &= 0x73; |
| 607 | rc |= 0x84; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 608 | iowrite8(rc, ap->ioaddr.lbal_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 609 | |
| 610 | /* Exit command mode */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 611 | iowrite8(0x83, ap->ioaddr.nsect_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 612 | } |
| 613 | |
| 614 | |
| 615 | static struct ata_port_operations opti82c611a_port_ops = { |
| 616 | .set_piomode = opti82c611a_set_piomode, |
| 617 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 618 | .tf_load = ata_tf_load, |
| 619 | .tf_read = ata_tf_read, |
| 620 | .check_status = ata_check_status, |
| 621 | .exec_command = ata_exec_command, |
| 622 | .dev_select = ata_std_dev_select, |
| 623 | |
Jeff Garzik | bf7551c | 2007-03-02 18:09:05 -0500 | [diff] [blame] | 624 | .freeze = ata_bmdma_freeze, |
| 625 | .thaw = ata_bmdma_thaw, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 626 | .error_handler = ata_bmdma_error_handler, |
Jeff Garzik | bf7551c | 2007-03-02 18:09:05 -0500 | [diff] [blame] | 627 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
Jeff Garzik | a73984a | 2007-03-09 08:37:46 -0500 | [diff] [blame] | 628 | .cable_detect = ata_cable_40wire, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 629 | |
| 630 | .qc_prep = ata_qc_prep, |
| 631 | .qc_issue = ata_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 632 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 633 | .data_xfer = ata_data_xfer, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 634 | |
| 635 | .irq_handler = ata_interrupt, |
| 636 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 637 | .irq_on = ata_irq_on, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 638 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 639 | .port_start = ata_sff_port_start, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 640 | }; |
| 641 | |
| 642 | /* |
| 643 | * Opti 82C465MV |
| 644 | * |
| 645 | * This controller supports PIO0 to PIO3. Unlike the 611A the MVB |
| 646 | * version is dual channel but doesn't have a lot of unique registers. |
| 647 | */ |
| 648 | |
| 649 | static void opti82c46x_set_piomode(struct ata_port *ap, struct ata_device *adev) |
| 650 | { |
| 651 | u8 active, recover, setup; |
| 652 | struct ata_timing t; |
| 653 | struct ata_device *pair = ata_dev_pair(adev); |
| 654 | int clock; |
| 655 | int khz[4] = { 50000, 40000, 33000, 25000 }; |
| 656 | u8 rc; |
| 657 | u8 sysclk; |
| 658 | |
| 659 | /* Get the clock */ |
| 660 | sysclk = opti_syscfg(0xAC) & 0xC0; /* BIOS set */ |
| 661 | |
| 662 | /* Enter configuration mode */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 663 | ioread16(ap->ioaddr.error_addr); |
| 664 | ioread16(ap->ioaddr.error_addr); |
| 665 | iowrite8(3, ap->ioaddr.nsect_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 666 | |
| 667 | /* Read VLB clock strapping */ |
| 668 | clock = 1000000000 / khz[sysclk]; |
| 669 | |
| 670 | /* Get the timing data in cycles */ |
| 671 | ata_timing_compute(adev, adev->pio_mode, &t, clock, 1000); |
| 672 | |
| 673 | /* Setup timing is shared */ |
| 674 | if (pair) { |
| 675 | struct ata_timing tp; |
| 676 | ata_timing_compute(pair, pair->pio_mode, &tp, clock, 1000); |
| 677 | |
| 678 | ata_timing_merge(&t, &tp, &t, ATA_TIMING_SETUP); |
| 679 | } |
| 680 | |
| 681 | active = FIT(t.active, 2, 17) - 2; |
| 682 | recover = FIT(t.recover, 1, 16) - 1; |
| 683 | setup = FIT(t.setup, 1, 4) - 1; |
| 684 | |
| 685 | /* Select the right timing bank for write timing */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 686 | rc = ioread8(ap->ioaddr.lbal_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 687 | rc &= 0x7F; |
| 688 | rc |= (adev->devno << 7); |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 689 | iowrite8(rc, ap->ioaddr.lbal_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 690 | |
| 691 | /* Write the timings */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 692 | iowrite8(active << 4 | recover, ap->ioaddr.error_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 693 | |
| 694 | /* Select the right bank for read timings, also |
| 695 | load the shared timings for address */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 696 | rc = ioread8(ap->ioaddr.device_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 697 | rc &= 0xC0; |
| 698 | rc |= adev->devno; /* Index select */ |
| 699 | rc |= (setup << 4) | 0x04; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 700 | iowrite8(rc, ap->ioaddr.device_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 701 | |
| 702 | /* Load the read timings */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 703 | iowrite8(active << 4 | recover, ap->ioaddr.data_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 704 | |
| 705 | /* Ensure the timing register mode is right */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 706 | rc = ioread8(ap->ioaddr.lbal_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 707 | rc &= 0x73; |
| 708 | rc |= 0x84; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 709 | iowrite8(rc, ap->ioaddr.lbal_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 710 | |
| 711 | /* Exit command mode */ |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 712 | iowrite8(0x83, ap->ioaddr.nsect_addr); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 713 | |
| 714 | /* We need to know this for quad device on the MVB */ |
| 715 | ap->host->private_data = ap; |
| 716 | } |
| 717 | |
| 718 | /** |
| 719 | * opt82c465mv_qc_issue_prot - command issue |
| 720 | * @qc: command pending |
| 721 | * |
| 722 | * Called when the libata layer is about to issue a command. We wrap |
| 723 | * this interface so that we can load the correct ATA timings. The |
| 724 | * MVB has a single set of timing registers and these are shared |
| 725 | * across channels. As there are two registers we really ought to |
| 726 | * track the last two used values as a sort of register window. For |
| 727 | * now we just reload on a channel switch. On the single channel |
| 728 | * setup this condition never fires so we do nothing extra. |
| 729 | * |
| 730 | * FIXME: dual channel needs ->serialize support |
| 731 | */ |
| 732 | |
| 733 | static unsigned int opti82c46x_qc_issue_prot(struct ata_queued_cmd *qc) |
| 734 | { |
| 735 | struct ata_port *ap = qc->ap; |
| 736 | struct ata_device *adev = qc->dev; |
| 737 | |
| 738 | /* If timings are set and for the wrong channel (2nd test is |
| 739 | due to a libata shortcoming and will eventually go I hope) */ |
| 740 | if (ap->host->private_data != ap->host |
| 741 | && ap->host->private_data != NULL) |
| 742 | opti82c46x_set_piomode(ap, adev); |
| 743 | |
| 744 | return ata_qc_issue_prot(qc); |
| 745 | } |
| 746 | |
| 747 | static struct ata_port_operations opti82c46x_port_ops = { |
| 748 | .set_piomode = opti82c46x_set_piomode, |
| 749 | |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 750 | .tf_load = ata_tf_load, |
| 751 | .tf_read = ata_tf_read, |
| 752 | .check_status = ata_check_status, |
| 753 | .exec_command = ata_exec_command, |
| 754 | .dev_select = ata_std_dev_select, |
| 755 | |
Jeff Garzik | bf7551c | 2007-03-02 18:09:05 -0500 | [diff] [blame] | 756 | .freeze = ata_bmdma_freeze, |
| 757 | .thaw = ata_bmdma_thaw, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 758 | .error_handler = ata_bmdma_error_handler, |
Jeff Garzik | bf7551c | 2007-03-02 18:09:05 -0500 | [diff] [blame] | 759 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
Jeff Garzik | a73984a | 2007-03-09 08:37:46 -0500 | [diff] [blame] | 760 | .cable_detect = ata_cable_40wire, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 761 | |
| 762 | .qc_prep = ata_qc_prep, |
| 763 | .qc_issue = opti82c46x_qc_issue_prot, |
Jeff Garzik | bda3028 | 2006-09-27 05:41:13 -0400 | [diff] [blame] | 764 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 765 | .data_xfer = ata_data_xfer, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 766 | |
| 767 | .irq_handler = ata_interrupt, |
| 768 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 769 | .irq_on = ata_irq_on, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 770 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 771 | .port_start = ata_sff_port_start, |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 772 | }; |
| 773 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 774 | static void qdi6500_set_piomode(struct ata_port *ap, struct ata_device *adev) |
| 775 | { |
| 776 | struct ata_timing t; |
| 777 | struct legacy_data *qdi = ap->host->private_data; |
| 778 | int active, recovery; |
| 779 | u8 timing; |
| 780 | |
| 781 | /* Get the timing data in cycles */ |
| 782 | ata_timing_compute(adev, adev->pio_mode, &t, 30303, 1000); |
| 783 | |
| 784 | if (qdi->fast) { |
| 785 | active = 8 - FIT(t.active, 1, 8); |
| 786 | recovery = 18 - FIT(t.recover, 3, 18); |
| 787 | } else { |
| 788 | active = 9 - FIT(t.active, 2, 9); |
| 789 | recovery = 15 - FIT(t.recover, 0, 15); |
| 790 | } |
| 791 | timing = (recovery << 4) | active | 0x08; |
| 792 | |
| 793 | qdi->clock[adev->devno] = timing; |
| 794 | |
| 795 | outb(timing, qdi->timing); |
| 796 | } |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 797 | |
| 798 | /** |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 799 | * qdi6580dp_set_piomode - PIO setup for dual channel |
| 800 | * @ap: Port |
| 801 | * @adev: Device |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 802 | * @irq: interrupt line |
| 803 | * |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 804 | * In dual channel mode the 6580 has one clock per channel and we have |
| 805 | * to software clockswitch in qc_issue_prot. |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 806 | */ |
| 807 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 808 | static void qdi6580dp_set_piomode(struct ata_port *ap, struct ata_device *adev) |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 809 | { |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 810 | struct ata_timing t; |
| 811 | struct legacy_data *qdi = ap->host->private_data; |
| 812 | int active, recovery; |
| 813 | u8 timing; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 814 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 815 | /* Get the timing data in cycles */ |
| 816 | ata_timing_compute(adev, adev->pio_mode, &t, 30303, 1000); |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 817 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 818 | if (qdi->fast) { |
| 819 | active = 8 - FIT(t.active, 1, 8); |
| 820 | recovery = 18 - FIT(t.recover, 3, 18); |
| 821 | } else { |
| 822 | active = 9 - FIT(t.active, 2, 9); |
| 823 | recovery = 15 - FIT(t.recover, 0, 15); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 824 | } |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 825 | timing = (recovery << 4) | active | 0x08; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 826 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 827 | qdi->clock[adev->devno] = timing; |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 828 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 829 | outb(timing, qdi->timing + 2 * ap->port_no); |
| 830 | /* Clear the FIFO */ |
| 831 | if (adev->class != ATA_DEV_ATA) |
| 832 | outb(0x5F, qdi->timing + 3); |
| 833 | } |
| 834 | |
| 835 | /** |
| 836 | * qdi6580_set_piomode - PIO setup for single channel |
| 837 | * @ap: Port |
| 838 | * @adev: Device |
| 839 | * |
| 840 | * In single channel mode the 6580 has one clock per device and we can |
| 841 | * avoid the requirement to clock switch. We also have to load the timing |
| 842 | * into the right clock according to whether we are master or slave. |
| 843 | */ |
| 844 | |
| 845 | static void qdi6580_set_piomode(struct ata_port *ap, struct ata_device *adev) |
| 846 | { |
| 847 | struct ata_timing t; |
| 848 | struct legacy_data *qdi = ap->host->private_data; |
| 849 | int active, recovery; |
| 850 | u8 timing; |
| 851 | |
| 852 | /* Get the timing data in cycles */ |
| 853 | ata_timing_compute(adev, adev->pio_mode, &t, 30303, 1000); |
| 854 | |
| 855 | if (qdi->fast) { |
| 856 | active = 8 - FIT(t.active, 1, 8); |
| 857 | recovery = 18 - FIT(t.recover, 3, 18); |
| 858 | } else { |
| 859 | active = 9 - FIT(t.active, 2, 9); |
| 860 | recovery = 15 - FIT(t.recover, 0, 15); |
| 861 | } |
| 862 | timing = (recovery << 4) | active | 0x08; |
| 863 | qdi->clock[adev->devno] = timing; |
| 864 | outb(timing, qdi->timing + 2 * adev->devno); |
| 865 | /* Clear the FIFO */ |
| 866 | if (adev->class != ATA_DEV_ATA) |
| 867 | outb(0x5F, qdi->timing + 3); |
| 868 | } |
| 869 | |
| 870 | /** |
| 871 | * qdi_qc_issue_prot - command issue |
| 872 | * @qc: command pending |
| 873 | * |
| 874 | * Called when the libata layer is about to issue a command. We wrap |
| 875 | * this interface so that we can load the correct ATA timings. |
| 876 | */ |
| 877 | |
| 878 | static unsigned int qdi_qc_issue_prot(struct ata_queued_cmd *qc) |
| 879 | { |
| 880 | struct ata_port *ap = qc->ap; |
| 881 | struct ata_device *adev = qc->dev; |
| 882 | struct legacy_data *qdi = ap->host->private_data; |
| 883 | |
| 884 | if (qdi->clock[adev->devno] != qdi->last) { |
| 885 | if (adev->pio_mode) { |
| 886 | qdi->last = qdi->clock[adev->devno]; |
| 887 | outb(qdi->clock[adev->devno], qdi->timing + |
| 888 | 2 * ap->port_no); |
| 889 | } |
| 890 | } |
| 891 | return ata_qc_issue_prot(qc); |
| 892 | } |
| 893 | |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 894 | static unsigned int vlb32_data_xfer(struct ata_device *adev, unsigned char *buf, |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 895 | unsigned int buflen, int rw) |
| 896 | { |
| 897 | struct ata_port *ap = adev->link->ap; |
| 898 | int slop = buflen & 3; |
| 899 | |
| 900 | if (ata_id_has_dword_io(adev->id)) { |
| 901 | if (rw == WRITE) |
| 902 | iowrite32_rep(ap->ioaddr.data_addr, buf, buflen >> 2); |
| 903 | else |
| 904 | ioread32_rep(ap->ioaddr.data_addr, buf, buflen >> 2); |
| 905 | |
| 906 | if (unlikely(slop)) { |
| 907 | u32 pad; |
| 908 | if (rw == WRITE) { |
| 909 | memcpy(&pad, buf + buflen - slop, slop); |
| 910 | pad = le32_to_cpu(pad); |
| 911 | iowrite32(pad, ap->ioaddr.data_addr); |
| 912 | } else { |
| 913 | pad = ioread32(ap->ioaddr.data_addr); |
| 914 | pad = cpu_to_le32(pad); |
| 915 | memcpy(buf + buflen - slop, &pad, slop); |
| 916 | } |
| 917 | } |
| 918 | return (buflen + 3) & ~3; |
| 919 | } else |
| 920 | return ata_data_xfer(adev, buf, buflen, rw); |
| 921 | } |
| 922 | |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 923 | static int qdi_port(struct platform_device *dev, |
| 924 | struct legacy_probe *lp, struct legacy_data *ld) |
| 925 | { |
| 926 | if (devm_request_region(&dev->dev, lp->private, 4, "qdi") == NULL) |
| 927 | return -EBUSY; |
| 928 | ld->timing = lp->private; |
| 929 | return 0; |
| 930 | } |
| 931 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 932 | static struct ata_port_operations qdi6500_port_ops = { |
| 933 | .set_piomode = qdi6500_set_piomode, |
| 934 | |
| 935 | .tf_load = ata_tf_load, |
| 936 | .tf_read = ata_tf_read, |
| 937 | .check_status = ata_check_status, |
| 938 | .exec_command = ata_exec_command, |
| 939 | .dev_select = ata_std_dev_select, |
| 940 | |
| 941 | .freeze = ata_bmdma_freeze, |
| 942 | .thaw = ata_bmdma_thaw, |
| 943 | .error_handler = ata_bmdma_error_handler, |
| 944 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
| 945 | .cable_detect = ata_cable_40wire, |
| 946 | |
| 947 | .qc_prep = ata_qc_prep, |
| 948 | .qc_issue = qdi_qc_issue_prot, |
| 949 | |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 950 | .data_xfer = vlb32_data_xfer, |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 951 | |
| 952 | .irq_handler = ata_interrupt, |
| 953 | .irq_clear = ata_bmdma_irq_clear, |
| 954 | .irq_on = ata_irq_on, |
| 955 | |
| 956 | .port_start = ata_sff_port_start, |
| 957 | }; |
| 958 | |
| 959 | static struct ata_port_operations qdi6580_port_ops = { |
| 960 | .set_piomode = qdi6580_set_piomode, |
| 961 | |
| 962 | .tf_load = ata_tf_load, |
| 963 | .tf_read = ata_tf_read, |
| 964 | .check_status = ata_check_status, |
| 965 | .exec_command = ata_exec_command, |
| 966 | .dev_select = ata_std_dev_select, |
| 967 | |
| 968 | .freeze = ata_bmdma_freeze, |
| 969 | .thaw = ata_bmdma_thaw, |
| 970 | .error_handler = ata_bmdma_error_handler, |
| 971 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
| 972 | .cable_detect = ata_cable_40wire, |
| 973 | |
| 974 | .qc_prep = ata_qc_prep, |
| 975 | .qc_issue = ata_qc_issue_prot, |
| 976 | |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 977 | .data_xfer = vlb32_data_xfer, |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 978 | |
| 979 | .irq_handler = ata_interrupt, |
| 980 | .irq_clear = ata_bmdma_irq_clear, |
| 981 | .irq_on = ata_irq_on, |
| 982 | |
| 983 | .port_start = ata_sff_port_start, |
| 984 | }; |
| 985 | |
| 986 | static struct ata_port_operations qdi6580dp_port_ops = { |
| 987 | .set_piomode = qdi6580dp_set_piomode, |
| 988 | |
| 989 | .tf_load = ata_tf_load, |
| 990 | .tf_read = ata_tf_read, |
| 991 | .check_status = ata_check_status, |
| 992 | .exec_command = ata_exec_command, |
| 993 | .dev_select = ata_std_dev_select, |
| 994 | |
| 995 | .freeze = ata_bmdma_freeze, |
| 996 | .thaw = ata_bmdma_thaw, |
| 997 | .error_handler = ata_bmdma_error_handler, |
| 998 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
| 999 | .cable_detect = ata_cable_40wire, |
| 1000 | |
| 1001 | .qc_prep = ata_qc_prep, |
| 1002 | .qc_issue = qdi_qc_issue_prot, |
| 1003 | |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 1004 | .data_xfer = vlb32_data_xfer, |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1005 | |
| 1006 | .irq_handler = ata_interrupt, |
| 1007 | .irq_clear = ata_bmdma_irq_clear, |
| 1008 | .irq_on = ata_irq_on, |
| 1009 | |
| 1010 | .port_start = ata_sff_port_start, |
| 1011 | }; |
| 1012 | |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 1013 | static DEFINE_SPINLOCK(winbond_lock); |
| 1014 | |
| 1015 | static void winbond_writecfg(unsigned long port, u8 reg, u8 val) |
| 1016 | { |
| 1017 | unsigned long flags; |
| 1018 | spin_lock_irqsave(&winbond_lock, flags); |
| 1019 | outb(reg, port + 0x01); |
| 1020 | outb(val, port + 0x02); |
| 1021 | spin_unlock_irqrestore(&winbond_lock, flags); |
| 1022 | } |
| 1023 | |
| 1024 | static u8 winbond_readcfg(unsigned long port, u8 reg) |
| 1025 | { |
| 1026 | u8 val; |
| 1027 | |
| 1028 | unsigned long flags; |
| 1029 | spin_lock_irqsave(&winbond_lock, flags); |
| 1030 | outb(reg, port + 0x01); |
| 1031 | val = inb(port + 0x02); |
| 1032 | spin_unlock_irqrestore(&winbond_lock, flags); |
| 1033 | |
| 1034 | return val; |
| 1035 | } |
| 1036 | |
| 1037 | static void winbond_set_piomode(struct ata_port *ap, struct ata_device *adev) |
| 1038 | { |
| 1039 | struct ata_timing t; |
| 1040 | struct legacy_data *winbond = ap->host->private_data; |
| 1041 | int active, recovery; |
| 1042 | u8 reg; |
| 1043 | int timing = 0x88 + (ap->port_no * 4) + (adev->devno * 2); |
| 1044 | |
| 1045 | reg = winbond_readcfg(winbond->timing, 0x81); |
| 1046 | |
| 1047 | /* Get the timing data in cycles */ |
| 1048 | if (reg & 0x40) /* Fast VLB bus, assume 50MHz */ |
| 1049 | ata_timing_compute(adev, adev->pio_mode, &t, 20000, 1000); |
| 1050 | else |
| 1051 | ata_timing_compute(adev, adev->pio_mode, &t, 30303, 1000); |
| 1052 | |
| 1053 | active = (FIT(t.active, 3, 17) - 1) & 0x0F; |
| 1054 | recovery = (FIT(t.recover, 1, 15) + 1) & 0x0F; |
| 1055 | timing = (active << 4) | recovery; |
| 1056 | winbond_writecfg(winbond->timing, timing, reg); |
| 1057 | |
| 1058 | /* Load the setup timing */ |
| 1059 | |
| 1060 | reg = 0x35; |
| 1061 | if (adev->class != ATA_DEV_ATA) |
| 1062 | reg |= 0x08; /* FIFO off */ |
| 1063 | if (!ata_pio_need_iordy(adev)) |
| 1064 | reg |= 0x02; /* IORDY off */ |
| 1065 | reg |= (FIT(t.setup, 0, 3) << 6); |
| 1066 | winbond_writecfg(winbond->timing, timing + 1, reg); |
| 1067 | } |
| 1068 | |
| 1069 | static int winbond_port(struct platform_device *dev, |
| 1070 | struct legacy_probe *lp, struct legacy_data *ld) |
| 1071 | { |
| 1072 | if (devm_request_region(&dev->dev, lp->private, 4, "winbond") == NULL) |
| 1073 | return -EBUSY; |
| 1074 | ld->timing = lp->private; |
| 1075 | return 0; |
| 1076 | } |
| 1077 | |
| 1078 | static struct ata_port_operations winbond_port_ops = { |
| 1079 | .set_piomode = winbond_set_piomode, |
| 1080 | |
| 1081 | .tf_load = ata_tf_load, |
| 1082 | .tf_read = ata_tf_read, |
| 1083 | .check_status = ata_check_status, |
| 1084 | .exec_command = ata_exec_command, |
| 1085 | .dev_select = ata_std_dev_select, |
| 1086 | |
| 1087 | .freeze = ata_bmdma_freeze, |
| 1088 | .thaw = ata_bmdma_thaw, |
| 1089 | .error_handler = ata_bmdma_error_handler, |
| 1090 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
| 1091 | .cable_detect = ata_cable_40wire, |
| 1092 | |
| 1093 | .qc_prep = ata_qc_prep, |
| 1094 | .qc_issue = ata_qc_issue_prot, |
| 1095 | |
| 1096 | .data_xfer = vlb32_data_xfer, |
| 1097 | |
| 1098 | .irq_clear = ata_bmdma_irq_clear, |
| 1099 | .irq_on = ata_irq_on, |
| 1100 | |
| 1101 | .port_start = ata_sff_port_start, |
| 1102 | }; |
| 1103 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1104 | static struct legacy_controller controllers[] = { |
| 1105 | {"BIOS", &legacy_port_ops, 0x1F, |
| 1106 | ATA_FLAG_NO_IORDY, NULL }, |
| 1107 | {"Snooping", &simple_port_ops, 0x1F, |
| 1108 | 0 , NULL }, |
| 1109 | {"PDC20230", &pdc20230_port_ops, 0x7, |
| 1110 | ATA_FLAG_NO_IORDY, NULL }, |
| 1111 | {"HT6560A", &ht6560a_port_ops, 0x07, |
| 1112 | ATA_FLAG_NO_IORDY, NULL }, |
| 1113 | {"HT6560B", &ht6560b_port_ops, 0x1F, |
| 1114 | ATA_FLAG_NO_IORDY, NULL }, |
| 1115 | {"OPTI82C611A", &opti82c611a_port_ops, 0x0F, |
| 1116 | 0 , NULL }, |
| 1117 | {"OPTI82C46X", &opti82c46x_port_ops, 0x0F, |
| 1118 | 0 , NULL }, |
| 1119 | {"QDI6500", &qdi6500_port_ops, 0x07, |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 1120 | ATA_FLAG_NO_IORDY, qdi_port }, |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1121 | {"QDI6580", &qdi6580_port_ops, 0x1F, |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 1122 | 0 , qdi_port }, |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1123 | {"QDI6580DP", &qdi6580dp_port_ops, 0x1F, |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 1124 | 0 , qdi_port }, |
| 1125 | {"W83759A", &winbond_port_ops, 0x1F, |
| 1126 | 0 , winbond_port } |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1127 | }; |
| 1128 | |
| 1129 | /** |
| 1130 | * probe_chip_type - Discover controller |
| 1131 | * @probe: Probe entry to check |
| 1132 | * |
| 1133 | * Probe an ATA port and identify the type of controller. We don't |
| 1134 | * check if the controller appears to be driveless at this point. |
| 1135 | */ |
| 1136 | |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 1137 | static __init int probe_chip_type(struct legacy_probe *probe) |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1138 | { |
| 1139 | int mask = 1 << probe->slot; |
| 1140 | |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 1141 | if (winbond && (probe->port == 0x1F0 || probe->port == 0x170)) { |
| 1142 | u8 reg = winbond_readcfg(winbond, 0x81); |
| 1143 | reg |= 0x80; /* jumpered mode off */ |
| 1144 | winbond_writecfg(winbond, 0x81, reg); |
| 1145 | reg = winbond_readcfg(winbond, 0x83); |
| 1146 | reg |= 0xF0; /* local control */ |
| 1147 | winbond_writecfg(winbond, 0x83, reg); |
| 1148 | reg = winbond_readcfg(winbond, 0x85); |
| 1149 | reg |= 0xF0; /* programmable timing */ |
| 1150 | winbond_writecfg(winbond, 0x85, reg); |
| 1151 | |
| 1152 | reg = winbond_readcfg(winbond, 0x81); |
| 1153 | |
| 1154 | if (reg & mask) |
| 1155 | return W83759A; |
| 1156 | } |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1157 | if (probe->port == 0x1F0) { |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1158 | unsigned long flags; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1159 | local_irq_save(flags); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1160 | /* Probes */ |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1161 | outb(inb(0x1F2) | 0x80, 0x1F2); |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1162 | inb(0x1F5); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1163 | inb(0x1F2); |
| 1164 | inb(0x3F6); |
| 1165 | inb(0x3F6); |
| 1166 | inb(0x1F2); |
| 1167 | inb(0x1F2); |
| 1168 | |
| 1169 | if ((inb(0x1F2) & 0x80) == 0) { |
| 1170 | /* PDC20230c or 20630 ? */ |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1171 | printk(KERN_INFO "PDC20230-C/20630 VLB ATA controller" |
| 1172 | " detected.\n"); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1173 | udelay(100); |
| 1174 | inb(0x1F5); |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1175 | local_irq_restore(flags); |
| 1176 | return PDC20230; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1177 | } else { |
| 1178 | outb(0x55, 0x1F2); |
| 1179 | inb(0x1F2); |
| 1180 | inb(0x1F2); |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1181 | if (inb(0x1F2) == 0x00) |
| 1182 | printk(KERN_INFO "PDC20230-B VLB ATA " |
| 1183 | "controller detected.\n"); |
| 1184 | local_irq_restore(flags); |
| 1185 | return BIOS; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1186 | } |
| 1187 | local_irq_restore(flags); |
| 1188 | } |
| 1189 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1190 | if (ht6560a & mask) |
| 1191 | return HT6560A; |
| 1192 | if (ht6560b & mask) |
| 1193 | return HT6560B; |
| 1194 | if (opti82c611a & mask) |
| 1195 | return OPTI611A; |
| 1196 | if (opti82c46x & mask) |
| 1197 | return OPTI46X; |
| 1198 | if (autospeed & mask) |
| 1199 | return SNOOP; |
| 1200 | return BIOS; |
| 1201 | } |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1202 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1203 | |
| 1204 | /** |
| 1205 | * legacy_init_one - attach a legacy interface |
| 1206 | * @pl: probe record |
| 1207 | * |
| 1208 | * Register an ISA bus IDE interface. Such interfaces are PIO and we |
| 1209 | * assume do not support IRQ sharing. |
| 1210 | */ |
| 1211 | |
| 1212 | static __init int legacy_init_one(struct legacy_probe *probe) |
| 1213 | { |
| 1214 | struct legacy_controller *controller = &controllers[probe->type]; |
| 1215 | int pio_modes = controller->pio_mask; |
| 1216 | unsigned long io = probe->port; |
| 1217 | u32 mask = (1 << probe->slot); |
| 1218 | struct ata_port_operations *ops = controller->ops; |
| 1219 | struct legacy_data *ld = &legacy_data[probe->slot]; |
| 1220 | struct ata_host *host = NULL; |
| 1221 | struct ata_port *ap; |
| 1222 | struct platform_device *pdev; |
| 1223 | struct ata_device *dev; |
| 1224 | void __iomem *io_addr, *ctrl_addr; |
| 1225 | u32 iordy = (iordy_mask & mask) ? 0: ATA_FLAG_NO_IORDY; |
| 1226 | int ret; |
| 1227 | |
| 1228 | iordy |= controller->flags; |
| 1229 | |
| 1230 | pdev = platform_device_register_simple(DRV_NAME, probe->slot, NULL, 0); |
| 1231 | if (IS_ERR(pdev)) |
| 1232 | return PTR_ERR(pdev); |
| 1233 | |
| 1234 | ret = -EBUSY; |
| 1235 | if (devm_request_region(&pdev->dev, io, 8, "pata_legacy") == NULL || |
| 1236 | devm_request_region(&pdev->dev, io + 0x0206, 1, |
| 1237 | "pata_legacy") == NULL) |
| 1238 | goto fail; |
Alan Cox | f834e49 | 2007-02-07 13:46:00 -0800 | [diff] [blame] | 1239 | |
Tejun Heo | 5d72882 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1240 | ret = -ENOMEM; |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1241 | io_addr = devm_ioport_map(&pdev->dev, io, 8); |
| 1242 | ctrl_addr = devm_ioport_map(&pdev->dev, io + 0x0206, 1); |
| 1243 | if (!io_addr || !ctrl_addr) |
| 1244 | goto fail; |
| 1245 | if (controller->setup) |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 1246 | if (controller->setup(pdev, probe, ld) < 0) |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1247 | goto fail; |
Tejun Heo | 5d72882 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1248 | host = ata_host_alloc(&pdev->dev, 1); |
| 1249 | if (!host) |
| 1250 | goto fail; |
| 1251 | ap = host->ports[0]; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1252 | |
Tejun Heo | 5d72882 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1253 | ap->ops = ops; |
| 1254 | ap->pio_mask = pio_modes; |
| 1255 | ap->flags |= ATA_FLAG_SLAVE_POSS | iordy; |
| 1256 | ap->ioaddr.cmd_addr = io_addr; |
| 1257 | ap->ioaddr.altstatus_addr = ctrl_addr; |
| 1258 | ap->ioaddr.ctl_addr = ctrl_addr; |
| 1259 | ata_std_ports(&ap->ioaddr); |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 1260 | ap->host->private_data = ld; |
Tejun Heo | 5d72882 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1261 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1262 | ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io, io + 0x0206); |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 1263 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1264 | ret = ata_host_activate(host, probe->irq, ata_interrupt, 0, |
| 1265 | &legacy_sht); |
Tejun Heo | 5d72882 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1266 | if (ret) |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1267 | goto fail; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1268 | ld->platform_dev = pdev; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1269 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1270 | /* Nothing found means we drop the port as its probably not there */ |
| 1271 | |
| 1272 | ret = -ENODEV; |
| 1273 | ata_link_for_each_dev(dev, &ap->link) { |
| 1274 | if (!ata_dev_absent(dev)) { |
| 1275 | legacy_host[probe->slot] = host; |
| 1276 | ld->platform_dev = pdev; |
| 1277 | return 0; |
| 1278 | } |
| 1279 | } |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1280 | fail: |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1281 | if (host) |
| 1282 | ata_host_detach(host); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1283 | platform_device_unregister(pdev); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1284 | return ret; |
| 1285 | } |
| 1286 | |
| 1287 | /** |
| 1288 | * legacy_check_special_cases - ATA special cases |
| 1289 | * @p: PCI device to check |
| 1290 | * @master: set this if we find an ATA master |
| 1291 | * @master: set this if we find an ATA secondary |
| 1292 | * |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1293 | * A small number of vendors implemented early PCI ATA interfaces |
| 1294 | * on bridge logic without the ATA interface being PCI visible. |
| 1295 | * Where we have a matching PCI driver we must skip the relevant |
| 1296 | * device here. If we don't know about it then the legacy driver |
| 1297 | * is the right driver anyway. |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1298 | */ |
| 1299 | |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 1300 | static void __init legacy_check_special_cases(struct pci_dev *p, int *primary, |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1301 | int *secondary) |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1302 | { |
| 1303 | /* Cyrix CS5510 pre SFF MWDMA ATA on the bridge */ |
| 1304 | if (p->vendor == 0x1078 && p->device == 0x0000) { |
| 1305 | *primary = *secondary = 1; |
| 1306 | return; |
| 1307 | } |
| 1308 | /* Cyrix CS5520 pre SFF MWDMA ATA on the bridge */ |
| 1309 | if (p->vendor == 0x1078 && p->device == 0x0002) { |
| 1310 | *primary = *secondary = 1; |
| 1311 | return; |
| 1312 | } |
| 1313 | /* Intel MPIIX - PIO ATA on non PCI side of bridge */ |
| 1314 | if (p->vendor == 0x8086 && p->device == 0x1234) { |
| 1315 | u16 r; |
| 1316 | pci_read_config_word(p, 0x6C, &r); |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1317 | if (r & 0x8000) { |
| 1318 | /* ATA port enabled */ |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1319 | if (r & 0x4000) |
| 1320 | *secondary = 1; |
| 1321 | else |
| 1322 | *primary = 1; |
| 1323 | } |
| 1324 | return; |
| 1325 | } |
| 1326 | } |
| 1327 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1328 | static __init void probe_opti_vlb(void) |
| 1329 | { |
| 1330 | /* If an OPTI 82C46X is present find out where the channels are */ |
| 1331 | static const char *optis[4] = { |
| 1332 | "3/463MV", "5MV", |
| 1333 | "5MVA", "5MVB" |
| 1334 | }; |
| 1335 | u8 chans = 1; |
| 1336 | u8 ctrl = (opti_syscfg(0x30) & 0xC0) >> 6; |
| 1337 | |
| 1338 | opti82c46x = 3; /* Assume master and slave first */ |
| 1339 | printk(KERN_INFO DRV_NAME ": Opti 82C46%s chipset support.\n", |
| 1340 | optis[ctrl]); |
| 1341 | if (ctrl == 3) |
| 1342 | chans = (opti_syscfg(0x3F) & 0x20) ? 2 : 1; |
| 1343 | ctrl = opti_syscfg(0xAC); |
| 1344 | /* Check enabled and this port is the 465MV port. On the |
| 1345 | MVB we may have two channels */ |
| 1346 | if (ctrl & 8) { |
| 1347 | if (chans == 2) { |
| 1348 | legacy_probe_add(0x1F0, 14, OPTI46X, 0); |
| 1349 | legacy_probe_add(0x170, 15, OPTI46X, 0); |
| 1350 | } |
| 1351 | if (ctrl & 4) |
| 1352 | legacy_probe_add(0x170, 15, OPTI46X, 0); |
| 1353 | else |
| 1354 | legacy_probe_add(0x1F0, 14, OPTI46X, 0); |
| 1355 | } else |
| 1356 | legacy_probe_add(0x1F0, 14, OPTI46X, 0); |
| 1357 | } |
| 1358 | |
| 1359 | static __init void qdi65_identify_port(u8 r, u8 res, unsigned long port) |
| 1360 | { |
| 1361 | static const unsigned long ide_port[2] = { 0x170, 0x1F0 }; |
| 1362 | /* Check card type */ |
| 1363 | if ((r & 0xF0) == 0xC0) { |
| 1364 | /* QD6500: single channel */ |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 1365 | if (r & 8) |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1366 | /* Disabled ? */ |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1367 | return; |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1368 | legacy_probe_add(ide_port[r & 0x01], 14 + (r & 0x01), |
| 1369 | QDI6500, port); |
| 1370 | } |
| 1371 | if (((r & 0xF0) == 0xA0) || (r & 0xF0) == 0x50) { |
| 1372 | /* QD6580: dual channel */ |
| 1373 | if (!request_region(port + 2 , 2, "pata_qdi")) { |
| 1374 | release_region(port, 2); |
| 1375 | return; |
| 1376 | } |
| 1377 | res = inb(port + 3); |
| 1378 | /* Single channel mode ? */ |
| 1379 | if (res & 1) |
| 1380 | legacy_probe_add(ide_port[r & 0x01], 14 + (r & 0x01), |
| 1381 | QDI6580, port); |
| 1382 | else { /* Dual channel mode */ |
| 1383 | legacy_probe_add(0x1F0, 14, QDI6580DP, port); |
| 1384 | /* port + 0x02, r & 0x04 */ |
| 1385 | legacy_probe_add(0x170, 15, QDI6580DP, port + 2); |
| 1386 | } |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 1387 | release_region(port + 2, 2); |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1388 | } |
| 1389 | } |
| 1390 | |
| 1391 | static __init void probe_qdi_vlb(void) |
| 1392 | { |
| 1393 | unsigned long flags; |
| 1394 | static const unsigned long qd_port[2] = { 0x30, 0xB0 }; |
| 1395 | int i; |
| 1396 | |
| 1397 | /* |
| 1398 | * Check each possible QD65xx base address |
| 1399 | */ |
| 1400 | |
| 1401 | for (i = 0; i < 2; i++) { |
| 1402 | unsigned long port = qd_port[i]; |
| 1403 | u8 r, res; |
| 1404 | |
| 1405 | |
| 1406 | if (request_region(port, 2, "pata_qdi")) { |
| 1407 | /* Check for a card */ |
| 1408 | local_irq_save(flags); |
| 1409 | /* I have no h/w that needs this delay but it |
| 1410 | is present in the historic code */ |
| 1411 | r = inb(port); |
| 1412 | udelay(1); |
| 1413 | outb(0x19, port); |
| 1414 | udelay(1); |
| 1415 | res = inb(port); |
| 1416 | udelay(1); |
| 1417 | outb(r, port); |
| 1418 | udelay(1); |
| 1419 | local_irq_restore(flags); |
| 1420 | |
| 1421 | /* Fail */ |
| 1422 | if (res == 0x19) { |
| 1423 | release_region(port, 2); |
| 1424 | continue; |
| 1425 | } |
| 1426 | /* Passes the presence test */ |
| 1427 | r = inb(port + 1); |
| 1428 | udelay(1); |
| 1429 | /* Check port agrees with port set */ |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 1430 | if ((r & 2) >> 1 == i) |
| 1431 | qdi65_identify_port(r, res, port); |
| 1432 | release_region(port, 2); |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1433 | } |
| 1434 | } |
| 1435 | } |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1436 | |
| 1437 | /** |
| 1438 | * legacy_init - attach legacy interfaces |
| 1439 | * |
| 1440 | * Attach legacy IDE interfaces by scanning the usual IRQ/port suspects. |
| 1441 | * Right now we do not scan the ide0 and ide1 address but should do so |
| 1442 | * for non PCI systems or systems with no PCI IDE legacy mode devices. |
| 1443 | * If you fix that note there are special cases to consider like VLB |
| 1444 | * drivers and CS5510/20. |
| 1445 | */ |
| 1446 | |
| 1447 | static __init int legacy_init(void) |
| 1448 | { |
| 1449 | int i; |
| 1450 | int ct = 0; |
| 1451 | int primary = 0; |
| 1452 | int secondary = 0; |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1453 | int pci_present = 0; |
| 1454 | struct legacy_probe *pl = &probe_list[0]; |
| 1455 | int slot = 0; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1456 | |
| 1457 | struct pci_dev *p = NULL; |
| 1458 | |
| 1459 | for_each_pci_dev(p) { |
| 1460 | int r; |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1461 | /* Check for any overlap of the system ATA mappings. Native |
| 1462 | mode controllers stuck on these addresses or some devices |
| 1463 | in 'raid' mode won't be found by the storage class test */ |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1464 | for (r = 0; r < 6; r++) { |
| 1465 | if (pci_resource_start(p, r) == 0x1f0) |
| 1466 | primary = 1; |
| 1467 | if (pci_resource_start(p, r) == 0x170) |
| 1468 | secondary = 1; |
| 1469 | } |
| 1470 | /* Check for special cases */ |
| 1471 | legacy_check_special_cases(p, &primary, &secondary); |
| 1472 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1473 | /* If PCI bus is present then don't probe for tertiary |
| 1474 | legacy ports */ |
| 1475 | pci_present = 1; |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1476 | } |
| 1477 | |
Alan Cox | b832548 | 2008-01-19 15:47:23 +0000 | [diff] [blame] | 1478 | if (winbond == 1) |
| 1479 | winbond = 0x130; /* Default port, alt is 1B0 */ |
| 1480 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1481 | if (primary == 0 || all) |
| 1482 | legacy_probe_add(0x1F0, 14, UNKNOWN, 0); |
| 1483 | if (secondary == 0 || all) |
| 1484 | legacy_probe_add(0x170, 15, UNKNOWN, 0); |
Jeff Garzik | 85cd725 | 2006-08-31 00:03:49 -0400 | [diff] [blame] | 1485 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1486 | if (probe_all || !pci_present) { |
| 1487 | /* ISA/VLB extra ports */ |
| 1488 | legacy_probe_add(0x1E8, 11, UNKNOWN, 0); |
| 1489 | legacy_probe_add(0x168, 10, UNKNOWN, 0); |
| 1490 | legacy_probe_add(0x1E0, 8, UNKNOWN, 0); |
| 1491 | legacy_probe_add(0x160, 12, UNKNOWN, 0); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1492 | } |
| 1493 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1494 | if (opti82c46x) |
| 1495 | probe_opti_vlb(); |
| 1496 | if (qdi) |
| 1497 | probe_qdi_vlb(); |
| 1498 | |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1499 | for (i = 0; i < NR_HOST; i++, pl++) { |
| 1500 | if (pl->port == 0) |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1501 | continue; |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1502 | if (pl->type == UNKNOWN) |
| 1503 | pl->type = probe_chip_type(pl); |
| 1504 | pl->slot = slot++; |
| 1505 | if (legacy_init_one(pl) == 0) |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1506 | ct++; |
| 1507 | } |
| 1508 | if (ct != 0) |
| 1509 | return 0; |
| 1510 | return -ENODEV; |
| 1511 | } |
| 1512 | |
| 1513 | static __exit void legacy_exit(void) |
| 1514 | { |
| 1515 | int i; |
| 1516 | |
| 1517 | for (i = 0; i < nr_legacy_host; i++) { |
| 1518 | struct legacy_data *ld = &legacy_data[i]; |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 1519 | ata_host_detach(legacy_host[i]); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1520 | platform_device_unregister(ld->platform_dev); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1521 | } |
| 1522 | } |
| 1523 | |
| 1524 | MODULE_AUTHOR("Alan Cox"); |
| 1525 | MODULE_DESCRIPTION("low-level driver for legacy ATA"); |
| 1526 | MODULE_LICENSE("GPL"); |
| 1527 | MODULE_VERSION(DRV_VERSION); |
| 1528 | |
| 1529 | module_param(probe_all, int, 0); |
| 1530 | module_param(autospeed, int, 0); |
| 1531 | module_param(ht6560a, int, 0); |
| 1532 | module_param(ht6560b, int, 0); |
| 1533 | module_param(opti82c611a, int, 0); |
| 1534 | module_param(opti82c46x, int, 0); |
Alan Cox | defc9cd | 2008-01-10 14:33:10 -0800 | [diff] [blame] | 1535 | module_param(qdi, int, 0); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1536 | module_param(pio_mask, int, 0); |
Alan Cox | f834e49 | 2007-02-07 13:46:00 -0800 | [diff] [blame] | 1537 | module_param(iordy_mask, int, 0); |
Jeff Garzik | 669a5db | 2006-08-29 18:12:40 -0400 | [diff] [blame] | 1538 | |
| 1539 | module_init(legacy_init); |
| 1540 | module_exit(legacy_exit); |