xref: /freebsd/sys/dev/ata/chipsets/ata-intel.c (revision 780fb4a2)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer,
12  *    without modification, immediately at the beginning of the file.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31 
32 #include <sys/param.h>
33 #include <sys/module.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/ata.h>
37 #include <sys/bus.h>
38 #include <sys/endian.h>
39 #include <sys/malloc.h>
40 #include <sys/lock.h>
41 #include <sys/mutex.h>
42 #include <sys/sema.h>
43 #include <sys/taskqueue.h>
44 #include <vm/uma.h>
45 #include <machine/stdarg.h>
46 #include <machine/resource.h>
47 #include <machine/bus.h>
48 #include <sys/rman.h>
49 #include <dev/pci/pcivar.h>
50 #include <dev/pci/pcireg.h>
51 #include <dev/ata/ata-all.h>
52 #include <dev/ata/ata-pci.h>
53 #include <ata_if.h>
54 
55 /* local prototypes */
56 static int ata_intel_chipinit(device_t dev);
57 static int ata_intel_chipdeinit(device_t dev);
58 static int ata_intel_ch_attach(device_t dev);
59 static void ata_intel_reset(device_t dev);
60 static int ata_intel_old_setmode(device_t dev, int target, int mode);
61 static int ata_intel_new_setmode(device_t dev, int target, int mode);
62 static int ata_intel_sch_setmode(device_t dev, int target, int mode);
63 static int ata_intel_sata_getrev(device_t dev, int target);
64 static int ata_intel_sata_status(device_t dev);
65 static int ata_intel_sata_ahci_read(device_t dev, int port,
66     int reg, u_int32_t *result);
67 static int ata_intel_sata_cscr_read(device_t dev, int port,
68     int reg, u_int32_t *result);
69 static int ata_intel_sata_sidpr_read(device_t dev, int port,
70     int reg, u_int32_t *result);
71 static int ata_intel_sata_ahci_write(device_t dev, int port,
72     int reg, u_int32_t result);
73 static int ata_intel_sata_cscr_write(device_t dev, int port,
74     int reg, u_int32_t result);
75 static int ata_intel_sata_sidpr_write(device_t dev, int port,
76     int reg, u_int32_t result);
77 static int ata_intel_sata_sidpr_test(device_t dev);
78 static int ata_intel_31244_ch_attach(device_t dev);
79 static int ata_intel_31244_ch_detach(device_t dev);
80 static int ata_intel_31244_status(device_t dev);
81 static void ata_intel_31244_tf_write(struct ata_request *request);
82 static void ata_intel_31244_reset(device_t dev);
83 
84 /* misc defines */
85 #define INTEL_ICH5	2
86 #define INTEL_6CH	4
87 #define INTEL_6CH2	8
88 #define INTEL_ICH7	16
89 
90 struct ata_intel_data {
91 	struct mtx	lock;
92 	u_char		smap[4];
93 };
94 
95 #define ATA_INTEL_SMAP(ctlr, ch) \
96     &((struct ata_intel_data *)((ctlr)->chipset_data))->smap[(ch)->unit * 2]
97 #define ATA_INTEL_LOCK(ctlr) \
98     mtx_lock(&((struct ata_intel_data *)((ctlr)->chipset_data))->lock)
99 #define ATA_INTEL_UNLOCK(ctlr) \
100     mtx_unlock(&((struct ata_intel_data *)((ctlr)->chipset_data))->lock)
101 
102 /*
103  * Intel chipset support functions
104  */
105 static int
106 ata_intel_probe(device_t dev)
107 {
108     struct ata_pci_controller *ctlr = device_get_softc(dev);
109     static const struct ata_chip_id ids[] =
110     {{ ATA_I82371FB,     0,          0, 2, ATA_WDMA2, "PIIX" },
111      { ATA_I82371SB,     0,          0, 2, ATA_WDMA2, "PIIX3" },
112      { ATA_I82371AB,     0,          0, 2, ATA_UDMA2, "PIIX4" },
113      { ATA_I82443MX,     0,          0, 2, ATA_UDMA2, "PIIX4" },
114      { ATA_I82451NX,     0,          0, 2, ATA_UDMA2, "PIIX4" },
115      { ATA_I82801AB,     0,          0, 2, ATA_UDMA2, "ICH0" },
116      { ATA_I82801AA,     0,          0, 2, ATA_UDMA4, "ICH" },
117      { ATA_I82372FB,     0,          0, 2, ATA_UDMA4, "ICH" },
118      { ATA_I82801BA,     0,          0, 2, ATA_UDMA5, "ICH2" },
119      { ATA_I82801BA_1,   0,          0, 2, ATA_UDMA5, "ICH2" },
120      { ATA_I82801CA,     0,          0, 2, ATA_UDMA5, "ICH3" },
121      { ATA_I82801CA_1,   0,          0, 2, ATA_UDMA5, "ICH3" },
122      { ATA_I82801DB,     0,          0, 2, ATA_UDMA5, "ICH4" },
123      { ATA_I82801DB_1,   0,          0, 2, ATA_UDMA5, "ICH4" },
124      { ATA_I82801EB,     0,          0, 2, ATA_UDMA5, "ICH5" },
125      { ATA_I82801EB_S1,  0, INTEL_ICH5, 2, ATA_SA150, "ICH5" },
126      { ATA_I82801EB_R1,  0, INTEL_ICH5, 2, ATA_SA150, "ICH5" },
127      { ATA_I6300ESB,     0,          0, 2, ATA_UDMA5, "6300ESB" },
128      { ATA_I6300ESB_S1,  0, INTEL_ICH5, 2, ATA_SA150, "6300ESB" },
129      { ATA_I6300ESB_R1,  0, INTEL_ICH5, 2, ATA_SA150, "6300ESB" },
130      { ATA_I82801FB,     0,          0, 2, ATA_UDMA5, "ICH6" },
131      { ATA_I82801FB_S1,  0,          0, 0, ATA_SA150, "ICH6" },
132      { ATA_I82801FB_R1,  0,          0, 0, ATA_SA150, "ICH6" },
133      { ATA_I82801FBM,    0,          0, 0, ATA_SA150, "ICH6M" },
134      { ATA_I82801GB,     0,          0, 1, ATA_UDMA5, "ICH7" },
135      { ATA_I82801GB_S1,  0, INTEL_ICH7, 0, ATA_SA300, "ICH7" },
136      { ATA_I82801GBM_S1, 0, INTEL_ICH7, 0, ATA_SA150, "ICH7M" },
137      { ATA_I63XXESB2,    0,          0, 1, ATA_UDMA5, "63XXESB2" },
138      { ATA_I63XXESB2_S1, 0,          0, 0, ATA_SA300, "63XXESB2" },
139      { ATA_I82801HB_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH8" },
140      { ATA_I82801HB_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH8" },
141      { ATA_I82801HBM,    0,          0, 1, ATA_UDMA5, "ICH8M" },
142      { ATA_I82801HBM_S1, 0, INTEL_6CH,  0, ATA_SA300, "ICH8M" },
143      { ATA_I82801IB_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH9" },
144      { ATA_I82801IB_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH9" },
145      { ATA_I82801IB_S3,  0, INTEL_6CH2, 0, ATA_SA300, "ICH9" },
146      { ATA_I82801IBM_S1, 0, INTEL_6CH2, 0, ATA_SA300, "ICH9M" },
147      { ATA_I82801IBM_S2, 0, INTEL_6CH2, 0, ATA_SA300, "ICH9M" },
148      { ATA_I82801JIB_S1, 0, INTEL_6CH,  0, ATA_SA300, "ICH10" },
149      { ATA_I82801JIB_S2, 0, INTEL_6CH2, 0, ATA_SA300, "ICH10" },
150      { ATA_I82801JD_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH10" },
151      { ATA_I82801JD_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH10" },
152      { ATA_I82801JI_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH10" },
153      { ATA_I82801JI_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH10" },
154      { ATA_IBP_S1,       0, INTEL_6CH,  0, ATA_SA300, "Ibex Peak" },
155      { ATA_IBP_S2,       0, INTEL_6CH2, 0, ATA_SA300, "Ibex Peak" },
156      { ATA_IBP_S3,       0, INTEL_6CH2, 0, ATA_SA300, "Ibex Peak" },
157      { ATA_IBP_S4,       0, INTEL_6CH,  0, ATA_SA300, "Ibex Peak-M" },
158      { ATA_IBP_S5,       0, INTEL_6CH2, 0, ATA_SA300, "Ibex Peak-M" },
159      { ATA_IBP_S6,       0, INTEL_6CH,  0, ATA_SA300, "Ibex Peak-M" },
160      { ATA_CPT_S1,       0, INTEL_6CH,  0, ATA_SA600, "Cougar Point" },
161      { ATA_CPT_S2,       0, INTEL_6CH,  0, ATA_SA600, "Cougar Point" },
162      { ATA_CPT_S3,       0, INTEL_6CH2, 0, ATA_SA300, "Cougar Point" },
163      { ATA_CPT_S4,       0, INTEL_6CH2, 0, ATA_SA300, "Cougar Point" },
164      { ATA_PBG_S1,       0, INTEL_6CH,  0, ATA_SA600, "Patsburg" },
165      { ATA_PBG_S2,       0, INTEL_6CH2, 0, ATA_SA300, "Patsburg" },
166      { ATA_PPT_S1,       0, INTEL_6CH,  0, ATA_SA600, "Panther Point" },
167      { ATA_PPT_S2,       0, INTEL_6CH,  0, ATA_SA600, "Panther Point" },
168      { ATA_PPT_S3,       0, INTEL_6CH2, 0, ATA_SA300, "Panther Point" },
169      { ATA_PPT_S4,       0, INTEL_6CH2, 0, ATA_SA300, "Panther Point" },
170      { ATA_AVOTON_S1,    0, INTEL_6CH,  0, ATA_SA600, "Avoton" },
171      { ATA_AVOTON_S2,    0, INTEL_6CH,  0, ATA_SA600, "Avoton" },
172      { ATA_AVOTON_S3,    0, INTEL_6CH2, 0, ATA_SA300, "Avoton" },
173      { ATA_AVOTON_S4,    0, INTEL_6CH2, 0, ATA_SA300, "Avoton" },
174      { ATA_LPT_S1,       0, INTEL_6CH,  0, ATA_SA600, "Lynx Point" },
175      { ATA_LPT_S2,       0, INTEL_6CH,  0, ATA_SA600, "Lynx Point" },
176      { ATA_LPT_S3,       0, INTEL_6CH2, 0, ATA_SA600, "Lynx Point" },
177      { ATA_LPT_S4,       0, INTEL_6CH2, 0, ATA_SA600, "Lynx Point" },
178      { ATA_WCPT_S1,      0, INTEL_6CH,  0, ATA_SA600, "Wildcat Point" },
179      { ATA_WCPT_S2,      0, INTEL_6CH,  0, ATA_SA600, "Wildcat Point" },
180      { ATA_WCPT_S3,      0, INTEL_6CH2, 0, ATA_SA600, "Wildcat Point" },
181      { ATA_WCPT_S4,      0, INTEL_6CH2, 0, ATA_SA600, "Wildcat Point" },
182      { ATA_WELLS_S1,     0, INTEL_6CH,  0, ATA_SA600, "Wellsburg" },
183      { ATA_WELLS_S2,     0, INTEL_6CH2, 0, ATA_SA600, "Wellsburg" },
184      { ATA_WELLS_S3,     0, INTEL_6CH,  0, ATA_SA600, "Wellsburg" },
185      { ATA_WELLS_S4,     0, INTEL_6CH2, 0, ATA_SA600, "Wellsburg" },
186      { ATA_LPTLP_S1,     0, INTEL_6CH,  0, ATA_SA600, "Lynx Point-LP" },
187      { ATA_LPTLP_S2,     0, INTEL_6CH,  0, ATA_SA600, "Lynx Point-LP" },
188      { ATA_LPTLP_S3,     0, INTEL_6CH2, 0, ATA_SA300, "Lynx Point-LP" },
189      { ATA_LPTLP_S4,     0, INTEL_6CH2, 0, ATA_SA300, "Lynx Point-LP" },
190      { ATA_I31244,       0,          0, 2, ATA_SA150, "31244" },
191      { ATA_ISCH,         0,          0, 1, ATA_UDMA5, "SCH" },
192      { ATA_COLETOCRK_S1, 0, INTEL_6CH2, 0, ATA_SA300, "COLETOCRK" },
193      { ATA_COLETOCRK_S2, 0, INTEL_6CH2, 0, ATA_SA300, "COLETOCRK" },
194      { 0, 0, 0, 0, 0, 0}};
195 
196     if (pci_get_vendor(dev) != ATA_INTEL_ID)
197 	return ENXIO;
198 
199     if (!(ctlr->chip = ata_match_chip(dev, ids)))
200 	return ENXIO;
201 
202     ata_set_desc(dev);
203     ctlr->chipinit = ata_intel_chipinit;
204     ctlr->chipdeinit = ata_intel_chipdeinit;
205     return (BUS_PROBE_LOW_PRIORITY);
206 }
207 
208 static int
209 ata_intel_chipinit(device_t dev)
210 {
211     struct ata_pci_controller *ctlr = device_get_softc(dev);
212     struct ata_intel_data *data;
213 
214     if (ata_setup_interrupt(dev, ata_generic_intr))
215 	return ENXIO;
216 
217     data = malloc(sizeof(struct ata_intel_data), M_ATAPCI, M_WAITOK | M_ZERO);
218     mtx_init(&data->lock, "Intel SATA lock", NULL, MTX_DEF);
219     ctlr->chipset_data = (void *)data;
220 
221     /* good old PIIX needs special treatment (not implemented) */
222     if (ctlr->chip->chipid == ATA_I82371FB) {
223 	ctlr->setmode = ata_intel_old_setmode;
224     }
225 
226     /* the intel 31244 needs special care if in DPA mode */
227     else if (ctlr->chip->chipid == ATA_I31244) {
228 	if (pci_get_subclass(dev) != PCIS_STORAGE_IDE) {
229 	    ctlr->r_type2 = SYS_RES_MEMORY;
230 	    ctlr->r_rid2 = PCIR_BAR(0);
231 	    if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
232 							&ctlr->r_rid2,
233 							RF_ACTIVE)))
234 		return ENXIO;
235 	    ctlr->channels = 4;
236 	    ctlr->ch_attach = ata_intel_31244_ch_attach;
237 	    ctlr->ch_detach = ata_intel_31244_ch_detach;
238 	    ctlr->reset = ata_intel_31244_reset;
239 	}
240 	ctlr->setmode = ata_sata_setmode;
241 	ctlr->getrev = ata_sata_getrev;
242     }
243     /* SCH */
244     else if (ctlr->chip->chipid == ATA_ISCH) {
245 	ctlr->channels = 1;
246 	ctlr->ch_attach = ata_intel_ch_attach;
247 	ctlr->ch_detach = ata_pci_ch_detach;
248 	ctlr->setmode = ata_intel_sch_setmode;
249     }
250     /* non SATA intel chips goes here */
251     else if (ctlr->chip->max_dma < ATA_SA150) {
252 	ctlr->channels = ctlr->chip->cfg2;
253 	ctlr->ch_attach = ata_intel_ch_attach;
254 	ctlr->ch_detach = ata_pci_ch_detach;
255 	ctlr->setmode = ata_intel_new_setmode;
256     }
257 
258     /* SATA parts can be either compat or AHCI */
259     else {
260 	/* force all ports active "the legacy way" */
261 	pci_write_config(dev, 0x92, pci_read_config(dev, 0x92, 2) | 0x0f, 2);
262 
263 	ctlr->ch_attach = ata_intel_ch_attach;
264 	ctlr->ch_detach = ata_pci_ch_detach;
265 	ctlr->reset = ata_intel_reset;
266 
267 	/* BAR(5) may point to SATA interface registers */
268 	if ((ctlr->chip->cfg1 & INTEL_ICH7)) {
269 		ctlr->r_type2 = SYS_RES_MEMORY;
270 		ctlr->r_rid2 = PCIR_BAR(5);
271 		ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
272 		    &ctlr->r_rid2, RF_ACTIVE);
273 		if (ctlr->r_res2 != NULL) {
274 			/* Set SCRAE bit to enable registers access. */
275 			pci_write_config(dev, 0x94,
276 			    pci_read_config(dev, 0x94, 4) | (1 << 9), 4);
277 			/* Set Ports Implemented register bits. */
278 			ATA_OUTL(ctlr->r_res2, 0x0C,
279 			    ATA_INL(ctlr->r_res2, 0x0C) | 0xf);
280 		}
281 	/* Skip BAR(5) on ICH8M Apples, system locks up on access. */
282 	} else if (ctlr->chip->chipid != ATA_I82801HBM_S1 ||
283 	    pci_get_subvendor(dev) != 0x106b) {
284 		ctlr->r_type2 = SYS_RES_IOPORT;
285 		ctlr->r_rid2 = PCIR_BAR(5);
286 		ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
287 		    &ctlr->r_rid2, RF_ACTIVE);
288 	}
289 	if (ctlr->r_res2 != NULL ||
290 	    (ctlr->chip->cfg1 & INTEL_ICH5))
291 		ctlr->getrev = ata_intel_sata_getrev;
292 	ctlr->setmode = ata_sata_setmode;
293     }
294     return 0;
295 }
296 
297 static int
298 ata_intel_chipdeinit(device_t dev)
299 {
300 	struct ata_pci_controller *ctlr = device_get_softc(dev);
301 	struct ata_intel_data *data;
302 
303 	data = ctlr->chipset_data;
304 	mtx_destroy(&data->lock);
305 	free(data, M_ATAPCI);
306 	ctlr->chipset_data = NULL;
307 	return (0);
308 }
309 
310 static int
311 ata_intel_ch_attach(device_t dev)
312 {
313 	struct ata_pci_controller *ctlr;
314 	struct ata_channel *ch;
315 	u_char *smap;
316 	u_int map;
317 
318 	/* setup the usual register normal pci style */
319 	if (ata_pci_ch_attach(dev))
320 		return (ENXIO);
321 
322 	ctlr = device_get_softc(device_get_parent(dev));
323 	ch = device_get_softc(dev);
324 
325 	/* if r_res2 is valid it points to SATA interface registers */
326 	if (ctlr->r_res2) {
327 		ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
328 		ch->r_io[ATA_IDX_ADDR].offset = 0x00;
329 		ch->r_io[ATA_IDX_DATA].res = ctlr->r_res2;
330 		ch->r_io[ATA_IDX_DATA].offset = 0x04;
331 	}
332 
333 	ch->flags |= ATA_ALWAYS_DMASTAT;
334 	if (ctlr->chip->max_dma >= ATA_SA150) {
335 		smap = ATA_INTEL_SMAP(ctlr, ch);
336 		map = pci_read_config(device_get_parent(dev), 0x90, 1);
337 		if (ctlr->chip->cfg1 & INTEL_ICH5) {
338 			map &= 0x07;
339 			if ((map & 0x04) == 0) {
340 				ch->flags |= ATA_SATA;
341 				ch->flags |= ATA_NO_SLAVE;
342 				smap[0] = (map & 0x01) ^ ch->unit;
343 				smap[1] = 0;
344 			} else if ((map & 0x02) == 0 && ch->unit == 0) {
345 				ch->flags |= ATA_SATA;
346 				smap[0] = (map & 0x01) ? 1 : 0;
347 				smap[1] = (map & 0x01) ? 0 : 1;
348 			} else if ((map & 0x02) != 0 && ch->unit == 1) {
349 				ch->flags |= ATA_SATA;
350 				smap[0] = (map & 0x01) ? 1 : 0;
351 				smap[1] = (map & 0x01) ? 0 : 1;
352 			}
353 		} else if (ctlr->chip->cfg1 & INTEL_6CH2) {
354 			ch->flags |= ATA_SATA;
355 			ch->flags |= ATA_NO_SLAVE;
356 			smap[0] = (ch->unit == 0) ? 0 : 1;
357 			smap[1] = 0;
358 		} else {
359 			map &= 0x03;
360 			if (map == 0x00) {
361 				ch->flags |= ATA_SATA;
362 				smap[0] = (ch->unit == 0) ? 0 : 1;
363 				smap[1] = (ch->unit == 0) ? 2 : 3;
364 			} else if (map == 0x02 && ch->unit == 0) {
365 				ch->flags |= ATA_SATA;
366 				smap[0] = 0;
367 				smap[1] = 2;
368 			} else if (map == 0x01 && ch->unit == 1) {
369 				ch->flags |= ATA_SATA;
370 				smap[0] = 1;
371 				smap[1] = 3;
372 			}
373 		}
374 		if (ch->flags & ATA_SATA) {
375 			if ((ctlr->chip->cfg1 & INTEL_ICH5)) {
376 				ch->hw.pm_read = ata_intel_sata_cscr_read;
377 				ch->hw.pm_write = ata_intel_sata_cscr_write;
378 			} else if (ctlr->r_res2) {
379 				if ((ctlr->chip->cfg1 & INTEL_ICH7)) {
380 					ch->hw.pm_read = ata_intel_sata_ahci_read;
381 					ch->hw.pm_write = ata_intel_sata_ahci_write;
382 				} else if (ata_intel_sata_sidpr_test(dev)) {
383 					ch->hw.pm_read = ata_intel_sata_sidpr_read;
384 					ch->hw.pm_write = ata_intel_sata_sidpr_write;
385 				}
386 			}
387 			if (ch->hw.pm_write != NULL) {
388 				ch->flags |= ATA_PERIODIC_POLL;
389 				ch->hw.status = ata_intel_sata_status;
390 				ata_sata_scr_write(ch, 0,
391 				    ATA_SERROR, 0xffffffff);
392 				if ((ch->flags & ATA_NO_SLAVE) == 0) {
393 					ata_sata_scr_write(ch, 1,
394 					    ATA_SERROR, 0xffffffff);
395 				}
396 			}
397 		} else
398 			ctlr->setmode = ata_intel_new_setmode;
399 		if (ctlr->chip->max_dma >= ATA_SA600)
400 			ch->flags |= ATA_USE_16BIT;
401 	} else if (ctlr->chip->chipid != ATA_ISCH)
402 		ch->flags |= ATA_CHECKS_CABLE;
403 	return (0);
404 }
405 
406 static void
407 ata_intel_reset(device_t dev)
408 {
409 	device_t parent = device_get_parent(dev);
410 	struct ata_pci_controller *ctlr = device_get_softc(parent);
411 	struct ata_channel *ch = device_get_softc(dev);
412 	int mask, pshift, timeout, devs;
413 	u_char *smap;
414 	uint16_t pcs;
415 
416 	/* In combined mode, skip SATA stuff for PATA channel. */
417 	if ((ch->flags & ATA_SATA) == 0)
418 		return (ata_generic_reset(dev));
419 
420 	/* Do hard-reset on respective SATA ports. */
421 	smap = ATA_INTEL_SMAP(ctlr, ch);
422 	mask = 1 << smap[0];
423 	if ((ch->flags & ATA_NO_SLAVE) == 0)
424 		mask |= (1 << smap[1]);
425 	pci_write_config(parent, 0x92,
426 	    pci_read_config(parent, 0x92, 2) & ~mask, 2);
427 	DELAY(100);
428 	pci_write_config(parent, 0x92,
429 	    pci_read_config(parent, 0x92, 2) | mask, 2);
430 
431 	/* Wait up to 1 sec for "connect well". */
432 	if (ctlr->chip->cfg1 & (INTEL_6CH | INTEL_6CH2))
433 		pshift = 8;
434 	else
435 		pshift = 4;
436 	for (timeout = 0; timeout < 100 ; timeout++) {
437 		pcs = (pci_read_config(parent, 0x92, 2) >> pshift) & mask;
438 		if ((pcs == mask) && (ATA_IDX_INB(ch, ATA_STATUS) != 0xff))
439 			break;
440 		ata_udelay(10000);
441 	}
442 
443 	if (bootverbose)
444 		device_printf(dev, "SATA reset: ports status=0x%02x\n", pcs);
445 	/* If any device found, do soft-reset. */
446 	if (ch->hw.pm_read != NULL) {
447 		devs = ata_sata_phy_reset(dev, 0, 2) ? ATA_ATA_MASTER : 0;
448 		if ((ch->flags & ATA_NO_SLAVE) == 0)
449 			devs |= ata_sata_phy_reset(dev, 1, 2) ?
450 			    ATA_ATA_SLAVE : 0;
451 	} else {
452 		devs = (pcs & (1 << smap[0])) ? ATA_ATA_MASTER : 0;
453 		if ((ch->flags & ATA_NO_SLAVE) == 0)
454 			devs |= (pcs & (1 << smap[1])) ?
455 			    ATA_ATA_SLAVE : 0;
456 	}
457 	if (devs) {
458 		ata_generic_reset(dev);
459 		/* Reset may give fake slave when only ATAPI master present. */
460 		ch->devices &= (devs | (devs * ATA_ATAPI_MASTER));
461 	} else
462 		ch->devices = 0;
463 }
464 
465 static int
466 ata_intel_old_setmode(device_t dev, int target, int mode)
467 {
468 	device_t parent = device_get_parent(dev);
469 	struct ata_pci_controller *ctlr = device_get_softc(parent);
470 
471 	mode = min(mode, ctlr->chip->max_dma);
472 	return (mode);
473 }
474 
475 static int
476 ata_intel_new_setmode(device_t dev, int target, int mode)
477 {
478 	device_t parent = device_get_parent(dev);
479 	struct ata_pci_controller *ctlr = device_get_softc(parent);
480 	struct ata_channel *ch = device_get_softc(dev);
481 	int devno = (ch->unit << 1) + target;
482 	int piomode;
483 	u_int32_t reg40 = pci_read_config(parent, 0x40, 4);
484 	u_int8_t reg44 = pci_read_config(parent, 0x44, 1);
485 	u_int8_t reg48 = pci_read_config(parent, 0x48, 1);
486 	u_int16_t reg4a = pci_read_config(parent, 0x4a, 2);
487 	u_int16_t reg54 = pci_read_config(parent, 0x54, 2);
488 	u_int32_t mask40 = 0, new40 = 0;
489 	u_int8_t mask44 = 0, new44 = 0;
490 	static const uint8_t timings[] =
491 	    { 0x00, 0x00, 0x10, 0x21, 0x23, 0x00, 0x21, 0x23 };
492 	static const uint8_t utimings[] =
493 	    { 0x00, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02 };
494 
495 	/* In combined mode, skip PATA stuff for SATA channel. */
496 	if (ch->flags & ATA_SATA)
497 		return (ata_sata_setmode(dev, target, mode));
498 
499 	mode = min(mode, ctlr->chip->max_dma);
500 	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
501 	    !(reg54 & (0x10 << devno))) {
502 		ata_print_cable(dev, "controller");
503 		mode = ATA_UDMA2;
504 	}
505 	/* Enable/disable UDMA and set timings. */
506 	if (mode >= ATA_UDMA0) {
507 	    pci_write_config(parent, 0x48, reg48 | (0x0001 << devno), 2);
508 	    pci_write_config(parent, 0x4a,
509 		(reg4a & ~(0x3 << (devno << 2))) |
510 		(utimings[mode & ATA_MODE_MASK] << (devno<<2)), 2);
511 	    piomode = ATA_PIO4;
512 	} else {
513 	    pci_write_config(parent, 0x48, reg48 & ~(0x0001 << devno), 2);
514 	    pci_write_config(parent, 0x4a, (reg4a & ~(0x3 << (devno << 2))),2);
515 	    piomode = mode;
516 	}
517 	reg54 |= 0x0400;
518 	/* Set UDMA reference clock (33/66/133MHz). */
519 	reg54 &= ~(0x1001 << devno);
520 	if (mode >= ATA_UDMA5)
521 	    reg54 |= (0x1000 << devno);
522 	else if (mode >= ATA_UDMA3)
523 	    reg54 |= (0x1 << devno);
524 	pci_write_config(parent, 0x54, reg54, 2);
525 	/* Allow PIO/WDMA timing controls. */
526 	reg40 &= ~0x00ff00ff;
527 	reg40 |= 0x40774077;
528 	/* Set PIO/WDMA timings. */
529 	if (target == 0) {
530 	    mask40 = 0x3300;
531 	    new40 = timings[ata_mode2idx(piomode)] << 8;
532 	} else {
533 	    mask44 = 0x0f;
534 	    new44 = ((timings[ata_mode2idx(piomode)] & 0x30) >> 2) |
535 		    (timings[ata_mode2idx(piomode)] & 0x03);
536 	}
537 	if (ch->unit) {
538 	    mask40 <<= 16;
539 	    new40 <<= 16;
540 	    mask44 <<= 4;
541 	    new44 <<= 4;
542 	}
543 	pci_write_config(parent, 0x40, (reg40 & ~mask40) | new40, 4);
544 	pci_write_config(parent, 0x44, (reg44 & ~mask44) | new44, 1);
545 	return (mode);
546 }
547 
548 static int
549 ata_intel_sch_setmode(device_t dev, int target, int mode)
550 {
551 	device_t parent = device_get_parent(dev);
552 	struct ata_pci_controller *ctlr = device_get_softc(parent);
553 	u_int8_t dtim = 0x80 + (target << 2);
554 	u_int32_t tim = pci_read_config(parent, dtim, 4);
555 	int piomode;
556 
557 	mode = min(mode, ctlr->chip->max_dma);
558 	if (mode >= ATA_UDMA0) {
559 		tim |= (0x1 << 31);
560 		tim &= ~(0x7 << 16);
561 		tim |= ((mode & ATA_MODE_MASK) << 16);
562 		piomode = ATA_PIO4;
563 	} else if (mode >= ATA_WDMA0) {
564 		tim &= ~(0x1 << 31);
565 		tim &= ~(0x3 << 8);
566 		tim |= ((mode & ATA_MODE_MASK) << 8);
567 		piomode = (mode == ATA_WDMA0) ? ATA_PIO0 :
568 		    (mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4;
569 	} else
570 		piomode = mode;
571 	tim &= ~(0x7);
572 	tim |= (piomode & 0x7);
573 	pci_write_config(parent, dtim, tim, 4);
574 	return (mode);
575 }
576 
577 static int
578 ata_intel_sata_getrev(device_t dev, int target)
579 {
580 	struct ata_channel *ch = device_get_softc(dev);
581 	uint32_t status;
582 
583 	if (ata_sata_scr_read(ch, target, ATA_SSTATUS, &status) == 0)
584 		return ((status & 0x0f0) >> 4);
585 	return (0xff);
586 }
587 
588 static int
589 ata_intel_sata_status(device_t dev)
590 {
591 	struct ata_channel *ch = device_get_softc(dev);
592 
593 	ata_sata_phy_check_events(dev, 0);
594 	if ((ch->flags & ATA_NO_SLAVE) == 0)
595 		ata_sata_phy_check_events(dev, 1);
596 
597 	return ata_pci_status(dev);
598 }
599 
600 static int
601 ata_intel_sata_ahci_read(device_t dev, int port, int reg, u_int32_t *result)
602 {
603 	struct ata_pci_controller *ctlr;
604 	struct ata_channel *ch;
605 	device_t parent;
606 	u_char *smap;
607 	int offset;
608 
609 	parent = device_get_parent(dev);
610 	ctlr = device_get_softc(parent);
611 	ch = device_get_softc(dev);
612 	port = (port == 1) ? 1 : 0;
613 	smap = ATA_INTEL_SMAP(ctlr, ch);
614 	offset = 0x100 + smap[port] * 0x80;
615 	switch (reg) {
616 	case ATA_SSTATUS:
617 	    reg = 0x28;
618 	    break;
619 	case ATA_SCONTROL:
620 	    reg = 0x2c;
621 	    break;
622 	case ATA_SERROR:
623 	    reg = 0x30;
624 	    break;
625 	default:
626 	    return (EINVAL);
627 	}
628 	*result = ATA_INL(ctlr->r_res2, offset + reg);
629 	return (0);
630 }
631 
632 static int
633 ata_intel_sata_cscr_read(device_t dev, int port, int reg, u_int32_t *result)
634 {
635 	struct ata_pci_controller *ctlr;
636 	struct ata_channel *ch;
637 	device_t parent;
638 	u_char *smap;
639 
640 	parent = device_get_parent(dev);
641 	ctlr = device_get_softc(parent);
642 	ch = device_get_softc(dev);
643 	smap = ATA_INTEL_SMAP(ctlr, ch);
644 	port = (port == 1) ? 1 : 0;
645 	switch (reg) {
646 	case ATA_SSTATUS:
647 	    reg = 0;
648 	    break;
649 	case ATA_SERROR:
650 	    reg = 1;
651 	    break;
652 	case ATA_SCONTROL:
653 	    reg = 2;
654 	    break;
655 	default:
656 	    return (EINVAL);
657 	}
658 	ATA_INTEL_LOCK(ctlr);
659 	pci_write_config(parent, 0xa0,
660 	    0x50 + smap[port] * 0x10 + reg * 4, 4);
661 	*result = pci_read_config(parent, 0xa4, 4);
662 	ATA_INTEL_UNLOCK(ctlr);
663 	return (0);
664 }
665 
666 static int
667 ata_intel_sata_sidpr_read(device_t dev, int port, int reg, u_int32_t *result)
668 {
669 	struct ata_pci_controller *ctlr;
670 	struct ata_channel *ch;
671 	device_t parent;
672 
673 	parent = device_get_parent(dev);
674 	ctlr = device_get_softc(parent);
675 	ch = device_get_softc(dev);
676 	port = (port == 1) ? 1 : 0;
677 	switch (reg) {
678 	case ATA_SSTATUS:
679 	    reg = 0;
680 	    break;
681 	case ATA_SCONTROL:
682 	    reg = 1;
683 	    break;
684 	case ATA_SERROR:
685 	    reg = 2;
686 	    break;
687 	default:
688 	    return (EINVAL);
689 	}
690 	ATA_INTEL_LOCK(ctlr);
691 	ATA_IDX_OUTL(ch, ATA_IDX_ADDR, ((ch->unit * 2 + port) << 8) + reg);
692 	*result = ATA_IDX_INL(ch, ATA_IDX_DATA);
693 	ATA_INTEL_UNLOCK(ctlr);
694 	return (0);
695 }
696 
697 static int
698 ata_intel_sata_ahci_write(device_t dev, int port, int reg, u_int32_t value)
699 {
700 	struct ata_pci_controller *ctlr;
701 	struct ata_channel *ch;
702 	device_t parent;
703 	u_char *smap;
704 	int offset;
705 
706 	parent = device_get_parent(dev);
707 	ctlr = device_get_softc(parent);
708 	ch = device_get_softc(dev);
709 	port = (port == 1) ? 1 : 0;
710 	smap = ATA_INTEL_SMAP(ctlr, ch);
711 	offset = 0x100 + smap[port] * 0x80;
712 	switch (reg) {
713 	case ATA_SSTATUS:
714 	    reg = 0x28;
715 	    break;
716 	case ATA_SCONTROL:
717 	    reg = 0x2c;
718 	    break;
719 	case ATA_SERROR:
720 	    reg = 0x30;
721 	    break;
722 	default:
723 	    return (EINVAL);
724 	}
725 	ATA_OUTL(ctlr->r_res2, offset + reg, value);
726 	return (0);
727 }
728 
729 static int
730 ata_intel_sata_cscr_write(device_t dev, int port, int reg, u_int32_t value)
731 {
732 	struct ata_pci_controller *ctlr;
733 	struct ata_channel *ch;
734 	device_t parent;
735 	u_char *smap;
736 
737 	parent = device_get_parent(dev);
738 	ctlr = device_get_softc(parent);
739 	ch = device_get_softc(dev);
740 	smap = ATA_INTEL_SMAP(ctlr, ch);
741 	port = (port == 1) ? 1 : 0;
742 	switch (reg) {
743 	case ATA_SSTATUS:
744 	    reg = 0;
745 	    break;
746 	case ATA_SERROR:
747 	    reg = 1;
748 	    break;
749 	case ATA_SCONTROL:
750 	    reg = 2;
751 	    break;
752 	default:
753 	    return (EINVAL);
754 	}
755 	ATA_INTEL_LOCK(ctlr);
756 	pci_write_config(parent, 0xa0,
757 	    0x50 + smap[port] * 0x10 + reg * 4, 4);
758 	pci_write_config(parent, 0xa4, value, 4);
759 	ATA_INTEL_UNLOCK(ctlr);
760 	return (0);
761 }
762 
763 static int
764 ata_intel_sata_sidpr_write(device_t dev, int port, int reg, u_int32_t value)
765 {
766 	struct ata_pci_controller *ctlr;
767 	struct ata_channel *ch;
768 	device_t parent;
769 
770 	parent = device_get_parent(dev);
771 	ctlr = device_get_softc(parent);
772 	ch = device_get_softc(dev);
773 	port = (port == 1) ? 1 : 0;
774 	switch (reg) {
775 	case ATA_SSTATUS:
776 	    reg = 0;
777 	    break;
778 	case ATA_SCONTROL:
779 	    reg = 1;
780 	    break;
781 	case ATA_SERROR:
782 	    reg = 2;
783 	    break;
784 	default:
785 	    return (EINVAL);
786 	}
787 	ATA_INTEL_LOCK(ctlr);
788 	ATA_IDX_OUTL(ch, ATA_IDX_ADDR, ((ch->unit * 2 + port) << 8) + reg);
789 	ATA_IDX_OUTL(ch, ATA_IDX_DATA, value);
790 	ATA_INTEL_UNLOCK(ctlr);
791 	return (0);
792 }
793 
794 static int
795 ata_intel_sata_sidpr_test(device_t dev)
796 {
797 	struct ata_channel *ch = device_get_softc(dev);
798 	int port;
799 	uint32_t val;
800 
801 	port = (ch->flags & ATA_NO_SLAVE) ? 0 : 1;
802 	for (; port >= 0; port--) {
803 		ata_intel_sata_sidpr_read(dev, port, ATA_SCONTROL, &val);
804 		if ((val & ATA_SC_IPM_MASK) ==
805 		    (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))
806 			return (1);
807 		val |= ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER;
808 		ata_intel_sata_sidpr_write(dev, port, ATA_SCONTROL, val);
809 		ata_intel_sata_sidpr_read(dev, port, ATA_SCONTROL, &val);
810 		if ((val & ATA_SC_IPM_MASK) ==
811 		    (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))
812 			return (1);
813 	}
814 	if (bootverbose)
815 		device_printf(dev,
816 		    "SControl registers are not functional: %08x\n", val);
817 	return (0);
818 }
819 
820 static int
821 ata_intel_31244_ch_attach(device_t dev)
822 {
823     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
824     struct ata_channel *ch = device_get_softc(dev);
825     int i;
826     int ch_offset;
827 
828     ata_pci_dmainit(dev);
829 
830     ch_offset = 0x200 + ch->unit * 0x200;
831 
832     for (i = ATA_DATA; i < ATA_MAX_RES; i++)
833 	ch->r_io[i].res = ctlr->r_res2;
834 
835     /* setup ATA registers */
836     ch->r_io[ATA_DATA].offset = ch_offset + 0x00;
837     ch->r_io[ATA_FEATURE].offset = ch_offset + 0x06;
838     ch->r_io[ATA_COUNT].offset = ch_offset + 0x08;
839     ch->r_io[ATA_SECTOR].offset = ch_offset + 0x0c;
840     ch->r_io[ATA_CYL_LSB].offset = ch_offset + 0x10;
841     ch->r_io[ATA_CYL_MSB].offset = ch_offset + 0x14;
842     ch->r_io[ATA_DRIVE].offset = ch_offset + 0x18;
843     ch->r_io[ATA_COMMAND].offset = ch_offset + 0x1d;
844     ch->r_io[ATA_ERROR].offset = ch_offset + 0x04;
845     ch->r_io[ATA_STATUS].offset = ch_offset + 0x1c;
846     ch->r_io[ATA_ALTSTAT].offset = ch_offset + 0x28;
847     ch->r_io[ATA_CONTROL].offset = ch_offset + 0x29;
848 
849     /* setup DMA registers */
850     ch->r_io[ATA_SSTATUS].offset = ch_offset + 0x100;
851     ch->r_io[ATA_SERROR].offset = ch_offset + 0x104;
852     ch->r_io[ATA_SCONTROL].offset = ch_offset + 0x108;
853 
854     /* setup SATA registers */
855     ch->r_io[ATA_BMCMD_PORT].offset = ch_offset + 0x70;
856     ch->r_io[ATA_BMSTAT_PORT].offset = ch_offset + 0x72;
857     ch->r_io[ATA_BMDTP_PORT].offset = ch_offset + 0x74;
858 
859     ch->flags |= ATA_NO_SLAVE;
860     ch->flags |= ATA_SATA;
861     ata_pci_hw(dev);
862     ch->hw.status = ata_intel_31244_status;
863     ch->hw.tf_write = ata_intel_31244_tf_write;
864 
865     /* enable PHY state change interrupt */
866     ATA_OUTL(ctlr->r_res2, 0x4,
867 	     ATA_INL(ctlr->r_res2, 0x04) | (0x01 << (ch->unit << 3)));
868     return 0;
869 }
870 
871 static int
872 ata_intel_31244_ch_detach(device_t dev)
873 {
874 
875     ata_pci_dmafini(dev);
876     return (0);
877 }
878 
879 static int
880 ata_intel_31244_status(device_t dev)
881 {
882     /* do we have any PHY events ? */
883     ata_sata_phy_check_events(dev, -1);
884 
885     /* any drive action to take care of ? */
886     return ata_pci_status(dev);
887 }
888 
889 static void
890 ata_intel_31244_tf_write(struct ata_request *request)
891 {
892     struct ata_channel *ch = device_get_softc(request->parent);
893 
894     if (request->flags & ATA_R_48BIT) {
895 	ATA_IDX_OUTW(ch, ATA_FEATURE, request->u.ata.feature);
896 	ATA_IDX_OUTW(ch, ATA_COUNT, request->u.ata.count);
897 	ATA_IDX_OUTW(ch, ATA_SECTOR, ((request->u.ata.lba >> 16) & 0xff00) |
898 				      (request->u.ata.lba & 0x00ff));
899 	ATA_IDX_OUTW(ch, ATA_CYL_LSB, ((request->u.ata.lba >> 24) & 0xff00) |
900 				       ((request->u.ata.lba >> 8) & 0x00ff));
901 	ATA_IDX_OUTW(ch, ATA_CYL_MSB, ((request->u.ata.lba >> 32) & 0xff00) |
902 				       ((request->u.ata.lba >> 16) & 0x00ff));
903 	ATA_IDX_OUTW(ch, ATA_DRIVE, ATA_D_LBA | ATA_DEV(request->unit));
904     }
905     else {
906 	ATA_IDX_OUTB(ch, ATA_FEATURE, request->u.ata.feature);
907 	ATA_IDX_OUTB(ch, ATA_COUNT, request->u.ata.count);
908 	    ATA_IDX_OUTB(ch, ATA_SECTOR, request->u.ata.lba);
909 	    ATA_IDX_OUTB(ch, ATA_CYL_LSB, request->u.ata.lba >> 8);
910 	    ATA_IDX_OUTB(ch, ATA_CYL_MSB, request->u.ata.lba >> 16);
911 	    ATA_IDX_OUTB(ch, ATA_DRIVE,
912 			 ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit) |
913 			 ((request->u.ata.lba >> 24) & 0x0f));
914     }
915 }
916 
917 static void
918 ata_intel_31244_reset(device_t dev)
919 {
920     struct ata_channel *ch = device_get_softc(dev);
921 
922     if (ata_sata_phy_reset(dev, -1, 1))
923 	ata_generic_reset(dev);
924     else
925 	ch->devices = 0;
926 }
927 
928 ATA_DECLARE_DRIVER(ata_intel);
929