xref: /freebsd/sys/dev/ata/chipsets/ata-intel.c (revision 67be1e195acfaec99ce4fffeb17111ce085755f7)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
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/param.h>
30 #include <sys/module.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/ata.h>
34 #include <sys/bus.h>
35 #include <sys/endian.h>
36 #include <sys/malloc.h>
37 #include <sys/lock.h>
38 #include <sys/mutex.h>
39 #include <sys/sema.h>
40 #include <sys/taskqueue.h>
41 #include <vm/uma.h>
42 #include <machine/stdarg.h>
43 #include <machine/resource.h>
44 #include <machine/bus.h>
45 #include <sys/rman.h>
46 #include <dev/pci/pcivar.h>
47 #include <dev/pci/pcireg.h>
48 #include <dev/ata/ata-all.h>
49 #include <dev/ata/ata-pci.h>
50 #include <ata_if.h>
51 
52 /* local prototypes */
53 static int ata_intel_chipinit(device_t dev);
54 static int ata_intel_chipdeinit(device_t dev);
55 static int ata_intel_ch_attach(device_t dev);
56 static void ata_intel_reset(device_t dev);
57 static int ata_intel_old_setmode(device_t dev, int target, int mode);
58 static int ata_intel_new_setmode(device_t dev, int target, int mode);
59 static int ata_intel_sch_setmode(device_t dev, int target, int mode);
60 static int ata_intel_sata_getrev(device_t dev, int target);
61 static int ata_intel_sata_status(device_t dev);
62 static int ata_intel_sata_ahci_read(device_t dev, int port,
63     int reg, u_int32_t *result);
64 static int ata_intel_sata_cscr_read(device_t dev, int port,
65     int reg, u_int32_t *result);
66 static int ata_intel_sata_sidpr_read(device_t dev, int port,
67     int reg, u_int32_t *result);
68 static int ata_intel_sata_ahci_write(device_t dev, int port,
69     int reg, u_int32_t result);
70 static int ata_intel_sata_cscr_write(device_t dev, int port,
71     int reg, u_int32_t result);
72 static int ata_intel_sata_sidpr_write(device_t dev, int port,
73     int reg, u_int32_t result);
74 static int ata_intel_sata_sidpr_test(device_t dev);
75 static int ata_intel_31244_ch_attach(device_t dev);
76 static int ata_intel_31244_ch_detach(device_t dev);
77 static int ata_intel_31244_status(device_t dev);
78 static void ata_intel_31244_tf_write(struct ata_request *request);
79 static void ata_intel_31244_reset(device_t dev);
80 
81 /* misc defines */
82 #define INTEL_ICH5	2
83 #define INTEL_6CH	4
84 #define INTEL_6CH2	8
85 #define INTEL_ICH7	16
86 
87 struct ata_intel_data {
88 	struct mtx	lock;
89 	u_char		smap[4];
90 };
91 
92 #define ATA_INTEL_SMAP(ctlr, ch) \
93     &((struct ata_intel_data *)((ctlr)->chipset_data))->smap[(ch)->unit * 2]
94 #define ATA_INTEL_LOCK(ctlr) \
95     mtx_lock(&((struct ata_intel_data *)((ctlr)->chipset_data))->lock)
96 #define ATA_INTEL_UNLOCK(ctlr) \
97     mtx_unlock(&((struct ata_intel_data *)((ctlr)->chipset_data))->lock)
98 
99 /*
100  * Intel chipset support functions
101  */
102 static int
103 ata_intel_probe(device_t dev)
104 {
105     struct ata_pci_controller *ctlr = device_get_softc(dev);
106     static const struct ata_chip_id ids[] =
107     {{ ATA_I82371FB,     0,          0, 2, ATA_WDMA2, "PIIX" },
108      { ATA_I82371SB,     0,          0, 2, ATA_WDMA2, "PIIX3" },
109      { ATA_I82371AB,     0,          0, 2, ATA_UDMA2, "PIIX4" },
110      { ATA_I82443MX,     0,          0, 2, ATA_UDMA2, "PIIX4" },
111      { ATA_I82451NX,     0,          0, 2, ATA_UDMA2, "PIIX4" },
112      { ATA_I82801AB,     0,          0, 2, ATA_UDMA2, "ICH0" },
113      { ATA_I82801AA,     0,          0, 2, ATA_UDMA4, "ICH" },
114      { ATA_I82372FB,     0,          0, 2, ATA_UDMA4, "ICH" },
115      { ATA_I82801BA,     0,          0, 2, ATA_UDMA5, "ICH2" },
116      { ATA_I82801BA_1,   0,          0, 2, ATA_UDMA5, "ICH2" },
117      { ATA_I82801CA,     0,          0, 2, ATA_UDMA5, "ICH3" },
118      { ATA_I82801CA_1,   0,          0, 2, ATA_UDMA5, "ICH3" },
119      { ATA_I82801DB,     0,          0, 2, ATA_UDMA5, "ICH4" },
120      { ATA_I82801DB_1,   0,          0, 2, ATA_UDMA5, "ICH4" },
121      { ATA_I82801EB,     0,          0, 2, ATA_UDMA5, "ICH5" },
122      { ATA_I82801EB_S1,  0, INTEL_ICH5, 2, ATA_SA150, "ICH5" },
123      { ATA_I82801EB_R1,  0, INTEL_ICH5, 2, ATA_SA150, "ICH5" },
124      { ATA_I6300ESB,     0,          0, 2, ATA_UDMA5, "6300ESB" },
125      { ATA_I6300ESB_S1,  0, INTEL_ICH5, 2, ATA_SA150, "6300ESB" },
126      { ATA_I6300ESB_R1,  0, INTEL_ICH5, 2, ATA_SA150, "6300ESB" },
127      { ATA_I82801FB,     0,          0, 2, ATA_UDMA5, "ICH6" },
128      { ATA_I82801FB_S1,  0,          0, 0, ATA_SA150, "ICH6" },
129      { ATA_I82801FB_R1,  0,          0, 0, ATA_SA150, "ICH6" },
130      { ATA_I82801FBM,    0,          0, 0, ATA_SA150, "ICH6M" },
131      { ATA_I82801GB,     0,          0, 1, ATA_UDMA5, "ICH7" },
132      { ATA_I82801GB_S1,  0, INTEL_ICH7, 0, ATA_SA300, "ICH7" },
133      { ATA_I82801GBM_S1, 0, INTEL_ICH7, 0, ATA_SA150, "ICH7M" },
134      { ATA_I63XXESB2,    0,          0, 1, ATA_UDMA5, "63XXESB2" },
135      { ATA_I63XXESB2_S1, 0,          0, 0, ATA_SA300, "63XXESB2" },
136      { ATA_I82801HB_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH8" },
137      { ATA_I82801HB_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH8" },
138      { ATA_I82801HBM,    0,          0, 1, ATA_UDMA5, "ICH8M" },
139      { ATA_I82801HBM_S1, 0, INTEL_6CH,  0, ATA_SA300, "ICH8M" },
140      { ATA_I82801IB_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH9" },
141      { ATA_I82801IB_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH9" },
142      { ATA_I82801IB_S3,  0, INTEL_6CH2, 0, ATA_SA300, "ICH9" },
143      { ATA_I82801IBM_S1, 0, INTEL_6CH2, 0, ATA_SA300, "ICH9M" },
144      { ATA_I82801IBM_S2, 0, INTEL_6CH2, 0, ATA_SA300, "ICH9M" },
145      { ATA_I82801JIB_S1, 0, INTEL_6CH,  0, ATA_SA300, "ICH10" },
146      { ATA_I82801JIB_S2, 0, INTEL_6CH2, 0, ATA_SA300, "ICH10" },
147      { ATA_I82801JD_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH10" },
148      { ATA_I82801JD_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH10" },
149      { ATA_I82801JI_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH10" },
150      { ATA_I82801JI_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH10" },
151      { ATA_IBP_S1,       0, INTEL_6CH,  0, ATA_SA300, "Ibex Peak" },
152      { ATA_IBP_S2,       0, INTEL_6CH2, 0, ATA_SA300, "Ibex Peak" },
153      { ATA_IBP_S3,       0, INTEL_6CH2, 0, ATA_SA300, "Ibex Peak" },
154      { ATA_IBP_S4,       0, INTEL_6CH,  0, ATA_SA300, "Ibex Peak-M" },
155      { ATA_IBP_S5,       0, INTEL_6CH2, 0, ATA_SA300, "Ibex Peak-M" },
156      { ATA_IBP_S6,       0, INTEL_6CH,  0, ATA_SA300, "Ibex Peak-M" },
157      { ATA_CPT_S1,       0, INTEL_6CH,  0, ATA_SA600, "Cougar Point" },
158      { ATA_CPT_S2,       0, INTEL_6CH,  0, ATA_SA600, "Cougar Point" },
159      { ATA_CPT_S3,       0, INTEL_6CH2, 0, ATA_SA300, "Cougar Point" },
160      { ATA_CPT_S4,       0, INTEL_6CH2, 0, ATA_SA300, "Cougar Point" },
161      { ATA_PBG_S1,       0, INTEL_6CH,  0, ATA_SA600, "Patsburg" },
162      { ATA_PBG_S2,       0, INTEL_6CH2, 0, ATA_SA300, "Patsburg" },
163      { ATA_PPT_S1,       0, INTEL_6CH,  0, ATA_SA600, "Panther Point" },
164      { ATA_PPT_S2,       0, INTEL_6CH,  0, ATA_SA600, "Panther Point" },
165      { ATA_PPT_S3,       0, INTEL_6CH2, 0, ATA_SA300, "Panther Point" },
166      { ATA_PPT_S4,       0, INTEL_6CH2, 0, ATA_SA300, "Panther Point" },
167      { ATA_AVOTON_S1,    0, INTEL_6CH,  0, ATA_SA600, "Avoton" },
168      { ATA_AVOTON_S2,    0, INTEL_6CH,  0, ATA_SA600, "Avoton" },
169      { ATA_AVOTON_S3,    0, INTEL_6CH2, 0, ATA_SA300, "Avoton" },
170      { ATA_AVOTON_S4,    0, INTEL_6CH2, 0, ATA_SA300, "Avoton" },
171      { ATA_LPT_S1,       0, INTEL_6CH,  0, ATA_SA600, "Lynx Point" },
172      { ATA_LPT_S2,       0, INTEL_6CH,  0, ATA_SA600, "Lynx Point" },
173      { ATA_LPT_S3,       0, INTEL_6CH2, 0, ATA_SA600, "Lynx Point" },
174      { ATA_LPT_S4,       0, INTEL_6CH2, 0, ATA_SA600, "Lynx Point" },
175      { ATA_WCPT_S1,      0, INTEL_6CH,  0, ATA_SA600, "Wildcat Point" },
176      { ATA_WCPT_S2,      0, INTEL_6CH,  0, ATA_SA600, "Wildcat Point" },
177      { ATA_WCPT_S3,      0, INTEL_6CH2, 0, ATA_SA600, "Wildcat Point" },
178      { ATA_WCPT_S4,      0, INTEL_6CH2, 0, ATA_SA600, "Wildcat Point" },
179      { ATA_WELLS_S1,     0, INTEL_6CH,  0, ATA_SA600, "Wellsburg" },
180      { ATA_WELLS_S2,     0, INTEL_6CH2, 0, ATA_SA600, "Wellsburg" },
181      { ATA_WELLS_S3,     0, INTEL_6CH,  0, ATA_SA600, "Wellsburg" },
182      { ATA_WELLS_S4,     0, INTEL_6CH2, 0, ATA_SA600, "Wellsburg" },
183      { ATA_LPTLP_S1,     0, INTEL_6CH,  0, ATA_SA600, "Lynx Point-LP" },
184      { ATA_LPTLP_S2,     0, INTEL_6CH,  0, ATA_SA600, "Lynx Point-LP" },
185      { ATA_LPTLP_S3,     0, INTEL_6CH2, 0, ATA_SA300, "Lynx Point-LP" },
186      { ATA_LPTLP_S4,     0, INTEL_6CH2, 0, ATA_SA300, "Lynx Point-LP" },
187      { ATA_I31244,       0,          0, 2, ATA_SA150, "31244" },
188      { ATA_ISCH,         0,          0, 1, ATA_UDMA5, "SCH" },
189      { ATA_COLETOCRK_S1, 0, INTEL_6CH2, 0, ATA_SA300, "COLETOCRK" },
190      { ATA_COLETOCRK_S2, 0, INTEL_6CH2, 0, ATA_SA300, "COLETOCRK" },
191      { ATA_IBT_S1,       0,          0, 0, ATA_SA300, "BayTrail" },
192      { ATA_IBT_S2,       0,          0, 0, ATA_SA300, "BayTrail" },
193      { 0, 0, 0, 0, 0, 0}};
194 
195     if (pci_get_vendor(dev) != ATA_INTEL_ID)
196 	return ENXIO;
197 
198     if (!(ctlr->chip = ata_match_chip(dev, ids)))
199 	return ENXIO;
200 
201     ata_set_desc(dev);
202     ctlr->chipinit = ata_intel_chipinit;
203     ctlr->chipdeinit = ata_intel_chipdeinit;
204     return (BUS_PROBE_LOW_PRIORITY);
205 }
206 
207 static int
208 ata_intel_chipinit(device_t dev)
209 {
210     struct ata_pci_controller *ctlr = device_get_softc(dev);
211     struct ata_intel_data *data;
212 
213     if (ata_setup_interrupt(dev, ata_generic_intr))
214 	return ENXIO;
215 
216     data = malloc(sizeof(struct ata_intel_data), M_ATAPCI, M_WAITOK | M_ZERO);
217     mtx_init(&data->lock, "Intel SATA lock", NULL, MTX_DEF);
218     ctlr->chipset_data = (void *)data;
219 
220     /* good old PIIX needs special treatment (not implemented) */
221     if (ctlr->chip->chipid == ATA_I82371FB) {
222 	ctlr->setmode = ata_intel_old_setmode;
223     }
224 
225     /* the intel 31244 needs special care if in DPA mode */
226     else if (ctlr->chip->chipid == ATA_I31244) {
227 	if (pci_get_subclass(dev) != PCIS_STORAGE_IDE) {
228 	    ctlr->r_type2 = SYS_RES_MEMORY;
229 	    ctlr->r_rid2 = PCIR_BAR(0);
230 	    if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
231 							&ctlr->r_rid2,
232 							RF_ACTIVE)))
233 		return ENXIO;
234 	    ctlr->channels = 4;
235 	    ctlr->ch_attach = ata_intel_31244_ch_attach;
236 	    ctlr->ch_detach = ata_intel_31244_ch_detach;
237 	    ctlr->reset = ata_intel_31244_reset;
238 	}
239 	ctlr->setmode = ata_sata_setmode;
240 	ctlr->getrev = ata_sata_getrev;
241     }
242     /* SCH */
243     else if (ctlr->chip->chipid == ATA_ISCH) {
244 	ctlr->channels = 1;
245 	ctlr->ch_attach = ata_intel_ch_attach;
246 	ctlr->ch_detach = ata_pci_ch_detach;
247 	ctlr->setmode = ata_intel_sch_setmode;
248     }
249     /* non SATA intel chips goes here */
250     else if (ctlr->chip->max_dma < ATA_SA150) {
251 	ctlr->channels = ctlr->chip->cfg2;
252 	ctlr->ch_attach = ata_intel_ch_attach;
253 	ctlr->ch_detach = ata_pci_ch_detach;
254 	ctlr->setmode = ata_intel_new_setmode;
255     }
256 
257     /* SATA parts can be either compat or AHCI */
258     else {
259 	/* force all ports active "the legacy way" */
260 	pci_write_config(dev, 0x92, pci_read_config(dev, 0x92, 2) | 0x0f, 2);
261 
262 	ctlr->ch_attach = ata_intel_ch_attach;
263 	ctlr->ch_detach = ata_pci_ch_detach;
264 	ctlr->reset = ata_intel_reset;
265 
266 	/* BAR(5) may point to SATA interface registers */
267 	if ((ctlr->chip->cfg1 & INTEL_ICH7)) {
268 		ctlr->r_type2 = SYS_RES_MEMORY;
269 		ctlr->r_rid2 = PCIR_BAR(5);
270 		ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
271 		    &ctlr->r_rid2, RF_ACTIVE);
272 		if (ctlr->r_res2 != NULL) {
273 			/* Set SCRAE bit to enable registers access. */
274 			pci_write_config(dev, 0x94,
275 			    pci_read_config(dev, 0x94, 4) | (1 << 9), 4);
276 			/* Set Ports Implemented register bits. */
277 			ATA_OUTL(ctlr->r_res2, 0x0C,
278 			    ATA_INL(ctlr->r_res2, 0x0C) | 0xf);
279 		}
280 	/* Skip BAR(5) on ICH8M Apples, system locks up on access. */
281 	} else if (ctlr->chip->chipid != ATA_I82801HBM_S1 ||
282 	    pci_get_subvendor(dev) != 0x106b) {
283 		ctlr->r_type2 = SYS_RES_IOPORT;
284 		ctlr->r_rid2 = PCIR_BAR(5);
285 		ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
286 		    &ctlr->r_rid2, RF_ACTIVE);
287 	}
288 	if (ctlr->r_res2 != NULL ||
289 	    (ctlr->chip->cfg1 & INTEL_ICH5))
290 		ctlr->getrev = ata_intel_sata_getrev;
291 	ctlr->setmode = ata_sata_setmode;
292     }
293     return 0;
294 }
295 
296 static int
297 ata_intel_chipdeinit(device_t dev)
298 {
299 	struct ata_pci_controller *ctlr = device_get_softc(dev);
300 	struct ata_intel_data *data;
301 
302 	data = ctlr->chipset_data;
303 	mtx_destroy(&data->lock);
304 	free(data, M_ATAPCI);
305 	ctlr->chipset_data = NULL;
306 	return (0);
307 }
308 
309 static int
310 ata_intel_ch_attach(device_t dev)
311 {
312 	struct ata_pci_controller *ctlr;
313 	struct ata_channel *ch;
314 	u_char *smap;
315 	u_int map;
316 
317 	/* setup the usual register normal pci style */
318 	if (ata_pci_ch_attach(dev))
319 		return (ENXIO);
320 
321 	ctlr = device_get_softc(device_get_parent(dev));
322 	ch = device_get_softc(dev);
323 
324 	/* if r_res2 is valid it points to SATA interface registers */
325 	if (ctlr->r_res2) {
326 		ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
327 		ch->r_io[ATA_IDX_ADDR].offset = 0x00;
328 		ch->r_io[ATA_IDX_DATA].res = ctlr->r_res2;
329 		ch->r_io[ATA_IDX_DATA].offset = 0x04;
330 	}
331 
332 	ch->flags |= ATA_ALWAYS_DMASTAT;
333 	if (ctlr->chip->max_dma >= ATA_SA150) {
334 		smap = ATA_INTEL_SMAP(ctlr, ch);
335 		map = pci_read_config(device_get_parent(dev), 0x90, 1);
336 		if (ctlr->chip->cfg1 & INTEL_ICH5) {
337 			map &= 0x07;
338 			if ((map & 0x04) == 0) {
339 				ch->flags |= ATA_SATA;
340 				ch->flags |= ATA_NO_SLAVE;
341 				smap[0] = (map & 0x01) ^ ch->unit;
342 				smap[1] = 0;
343 			} else if ((map & 0x02) == 0 && ch->unit == 0) {
344 				ch->flags |= ATA_SATA;
345 				smap[0] = (map & 0x01) ? 1 : 0;
346 				smap[1] = (map & 0x01) ? 0 : 1;
347 			} else if ((map & 0x02) != 0 && ch->unit == 1) {
348 				ch->flags |= ATA_SATA;
349 				smap[0] = (map & 0x01) ? 1 : 0;
350 				smap[1] = (map & 0x01) ? 0 : 1;
351 			}
352 		} else if (ctlr->chip->cfg1 & INTEL_6CH2) {
353 			ch->flags |= ATA_SATA;
354 			ch->flags |= ATA_NO_SLAVE;
355 			smap[0] = (ch->unit == 0) ? 0 : 1;
356 			smap[1] = 0;
357 		} else {
358 			map &= 0x03;
359 			if (map == 0x00) {
360 				ch->flags |= ATA_SATA;
361 				smap[0] = (ch->unit == 0) ? 0 : 1;
362 				smap[1] = (ch->unit == 0) ? 2 : 3;
363 			} else if (map == 0x02 && ch->unit == 0) {
364 				ch->flags |= ATA_SATA;
365 				smap[0] = 0;
366 				smap[1] = 2;
367 			} else if (map == 0x01 && ch->unit == 1) {
368 				ch->flags |= ATA_SATA;
369 				smap[0] = 1;
370 				smap[1] = 3;
371 			}
372 		}
373 		if (ch->flags & ATA_SATA) {
374 			if ((ctlr->chip->cfg1 & INTEL_ICH5)) {
375 				ch->hw.pm_read = ata_intel_sata_cscr_read;
376 				ch->hw.pm_write = ata_intel_sata_cscr_write;
377 			} else if (ctlr->r_res2) {
378 				if ((ctlr->chip->cfg1 & INTEL_ICH7)) {
379 					ch->hw.pm_read = ata_intel_sata_ahci_read;
380 					ch->hw.pm_write = ata_intel_sata_ahci_write;
381 				} else if (ata_intel_sata_sidpr_test(dev)) {
382 					ch->hw.pm_read = ata_intel_sata_sidpr_read;
383 					ch->hw.pm_write = ata_intel_sata_sidpr_write;
384 				}
385 			}
386 			if (ch->hw.pm_write != NULL) {
387 				ch->flags |= ATA_PERIODIC_POLL;
388 				ch->hw.status = ata_intel_sata_status;
389 				ata_sata_scr_write(ch, 0,
390 				    ATA_SERROR, 0xffffffff);
391 				if ((ch->flags & ATA_NO_SLAVE) == 0) {
392 					ata_sata_scr_write(ch, 1,
393 					    ATA_SERROR, 0xffffffff);
394 				}
395 			}
396 		} else
397 			ctlr->setmode = ata_intel_new_setmode;
398 		if (ctlr->chip->max_dma >= ATA_SA600)
399 			ch->flags |= ATA_USE_16BIT;
400 	} else if (ctlr->chip->chipid != ATA_ISCH)
401 		ch->flags |= ATA_CHECKS_CABLE;
402 	return (0);
403 }
404 
405 static void
406 ata_intel_reset(device_t dev)
407 {
408 	device_t parent = device_get_parent(dev);
409 	struct ata_pci_controller *ctlr = device_get_softc(parent);
410 	struct ata_channel *ch = device_get_softc(dev);
411 	int mask, pshift, timeout, devs;
412 	u_char *smap;
413 	uint16_t pcs;
414 
415 	/* In combined mode, skip SATA stuff for PATA channel. */
416 	if ((ch->flags & ATA_SATA) == 0)
417 		return (ata_generic_reset(dev));
418 
419 	/* Do hard-reset on respective SATA ports. */
420 	smap = ATA_INTEL_SMAP(ctlr, ch);
421 	mask = 1 << smap[0];
422 	if ((ch->flags & ATA_NO_SLAVE) == 0)
423 		mask |= (1 << smap[1]);
424 	pci_write_config(parent, 0x92,
425 	    pci_read_config(parent, 0x92, 2) & ~mask, 2);
426 	DELAY(100);
427 	pci_write_config(parent, 0x92,
428 	    pci_read_config(parent, 0x92, 2) | mask, 2);
429 
430 	/* Wait up to 1 sec for "connect well". */
431 	if (ctlr->chip->cfg1 & (INTEL_6CH | INTEL_6CH2))
432 		pshift = 8;
433 	else
434 		pshift = 4;
435 	for (timeout = 0; timeout < 100 ; timeout++) {
436 		pcs = (pci_read_config(parent, 0x92, 2) >> pshift) & mask;
437 		if ((pcs == mask) && (ATA_IDX_INB(ch, ATA_STATUS) != 0xff))
438 			break;
439 		ata_udelay(10000);
440 	}
441 
442 	if (bootverbose)
443 		device_printf(dev, "SATA reset: ports status=0x%02x\n", pcs);
444 	/* If any device found, do soft-reset. */
445 	if (ch->hw.pm_read != NULL) {
446 		devs = ata_sata_phy_reset(dev, 0, 2) ? ATA_ATA_MASTER : 0;
447 		if ((ch->flags & ATA_NO_SLAVE) == 0)
448 			devs |= ata_sata_phy_reset(dev, 1, 2) ?
449 			    ATA_ATA_SLAVE : 0;
450 	} else {
451 		devs = (pcs & (1 << smap[0])) ? ATA_ATA_MASTER : 0;
452 		if ((ch->flags & ATA_NO_SLAVE) == 0)
453 			devs |= (pcs & (1 << smap[1])) ?
454 			    ATA_ATA_SLAVE : 0;
455 	}
456 	if (devs) {
457 		ata_generic_reset(dev);
458 		/* Reset may give fake slave when only ATAPI master present. */
459 		ch->devices &= (devs | (devs * ATA_ATAPI_MASTER));
460 	} else
461 		ch->devices = 0;
462 }
463 
464 static int
465 ata_intel_old_setmode(device_t dev, int target, int mode)
466 {
467 	device_t parent = device_get_parent(dev);
468 	struct ata_pci_controller *ctlr = device_get_softc(parent);
469 
470 	mode = min(mode, ctlr->chip->max_dma);
471 	return (mode);
472 }
473 
474 static int
475 ata_intel_new_setmode(device_t dev, int target, int mode)
476 {
477 	device_t parent = device_get_parent(dev);
478 	struct ata_pci_controller *ctlr = device_get_softc(parent);
479 	struct ata_channel *ch = device_get_softc(dev);
480 	int devno = (ch->unit << 1) + target;
481 	int piomode;
482 	u_int32_t reg40 = pci_read_config(parent, 0x40, 4);
483 	u_int8_t reg44 = pci_read_config(parent, 0x44, 1);
484 	u_int8_t reg48 = pci_read_config(parent, 0x48, 1);
485 	u_int16_t reg4a = pci_read_config(parent, 0x4a, 2);
486 	u_int16_t reg54 = pci_read_config(parent, 0x54, 2);
487 	u_int32_t mask40 = 0, new40 = 0;
488 	u_int8_t mask44 = 0, new44 = 0;
489 	static const uint8_t timings[] =
490 	    { 0x00, 0x00, 0x10, 0x21, 0x23, 0x00, 0x21, 0x23 };
491 	static const uint8_t utimings[] =
492 	    { 0x00, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02 };
493 
494 	/* In combined mode, skip PATA stuff for SATA channel. */
495 	if (ch->flags & ATA_SATA)
496 		return (ata_sata_setmode(dev, target, mode));
497 
498 	mode = min(mode, ctlr->chip->max_dma);
499 	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
500 	    !(reg54 & (0x10 << devno))) {
501 		ata_print_cable(dev, "controller");
502 		mode = ATA_UDMA2;
503 	}
504 	/* Enable/disable UDMA and set timings. */
505 	if (mode >= ATA_UDMA0) {
506 	    pci_write_config(parent, 0x48, reg48 | (0x0001 << devno), 2);
507 	    pci_write_config(parent, 0x4a,
508 		(reg4a & ~(0x3 << (devno << 2))) |
509 		(utimings[mode & ATA_MODE_MASK] << (devno<<2)), 2);
510 	    piomode = ATA_PIO4;
511 	} else {
512 	    pci_write_config(parent, 0x48, reg48 & ~(0x0001 << devno), 2);
513 	    pci_write_config(parent, 0x4a, (reg4a & ~(0x3 << (devno << 2))),2);
514 	    piomode = mode;
515 	}
516 	reg54 |= 0x0400;
517 	/* Set UDMA reference clock (33/66/133MHz). */
518 	reg54 &= ~(0x1001 << devno);
519 	if (mode >= ATA_UDMA5)
520 	    reg54 |= (0x1000 << devno);
521 	else if (mode >= ATA_UDMA3)
522 	    reg54 |= (0x1 << devno);
523 	pci_write_config(parent, 0x54, reg54, 2);
524 	/* Allow PIO/WDMA timing controls. */
525 	reg40 &= ~0x00ff00ff;
526 	reg40 |= 0x40774077;
527 	/* Set PIO/WDMA timings. */
528 	if (target == 0) {
529 	    mask40 = 0x3300;
530 	    new40 = timings[ata_mode2idx(piomode)] << 8;
531 	} else {
532 	    mask44 = 0x0f;
533 	    new44 = ((timings[ata_mode2idx(piomode)] & 0x30) >> 2) |
534 		    (timings[ata_mode2idx(piomode)] & 0x03);
535 	}
536 	if (ch->unit) {
537 	    mask40 <<= 16;
538 	    new40 <<= 16;
539 	    mask44 <<= 4;
540 	    new44 <<= 4;
541 	}
542 	pci_write_config(parent, 0x40, (reg40 & ~mask40) | new40, 4);
543 	pci_write_config(parent, 0x44, (reg44 & ~mask44) | new44, 1);
544 	return (mode);
545 }
546 
547 static int
548 ata_intel_sch_setmode(device_t dev, int target, int mode)
549 {
550 	device_t parent = device_get_parent(dev);
551 	struct ata_pci_controller *ctlr = device_get_softc(parent);
552 	u_int8_t dtim = 0x80 + (target << 2);
553 	u_int32_t tim = pci_read_config(parent, dtim, 4);
554 	int piomode;
555 
556 	mode = min(mode, ctlr->chip->max_dma);
557 	if (mode >= ATA_UDMA0) {
558 		tim |= (0x1 << 31);
559 		tim &= ~(0x7 << 16);
560 		tim |= ((mode & ATA_MODE_MASK) << 16);
561 		piomode = ATA_PIO4;
562 	} else if (mode >= ATA_WDMA0) {
563 		tim &= ~(0x1 << 31);
564 		tim &= ~(0x3 << 8);
565 		tim |= ((mode & ATA_MODE_MASK) << 8);
566 		piomode = (mode == ATA_WDMA0) ? ATA_PIO0 :
567 		    (mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4;
568 	} else
569 		piomode = mode;
570 	tim &= ~(0x7);
571 	tim |= (piomode & 0x7);
572 	pci_write_config(parent, dtim, tim, 4);
573 	return (mode);
574 }
575 
576 static int
577 ata_intel_sata_getrev(device_t dev, int target)
578 {
579 	struct ata_channel *ch = device_get_softc(dev);
580 	uint32_t status;
581 
582 	if (ata_sata_scr_read(ch, target, ATA_SSTATUS, &status) == 0)
583 		return ((status & 0x0f0) >> 4);
584 	return (0xff);
585 }
586 
587 static int
588 ata_intel_sata_status(device_t dev)
589 {
590 	struct ata_channel *ch = device_get_softc(dev);
591 
592 	ata_sata_phy_check_events(dev, 0);
593 	if ((ch->flags & ATA_NO_SLAVE) == 0)
594 		ata_sata_phy_check_events(dev, 1);
595 
596 	return ata_pci_status(dev);
597 }
598 
599 static int
600 ata_intel_sata_ahci_read(device_t dev, int port, int reg, u_int32_t *result)
601 {
602 	struct ata_pci_controller *ctlr;
603 	struct ata_channel *ch;
604 	device_t parent;
605 	u_char *smap;
606 	int offset;
607 
608 	parent = device_get_parent(dev);
609 	ctlr = device_get_softc(parent);
610 	ch = device_get_softc(dev);
611 	port = (port == 1) ? 1 : 0;
612 	smap = ATA_INTEL_SMAP(ctlr, ch);
613 	offset = 0x100 + smap[port] * 0x80;
614 	switch (reg) {
615 	case ATA_SSTATUS:
616 	    reg = 0x28;
617 	    break;
618 	case ATA_SCONTROL:
619 	    reg = 0x2c;
620 	    break;
621 	case ATA_SERROR:
622 	    reg = 0x30;
623 	    break;
624 	default:
625 	    return (EINVAL);
626 	}
627 	*result = ATA_INL(ctlr->r_res2, offset + reg);
628 	return (0);
629 }
630 
631 static int
632 ata_intel_sata_cscr_read(device_t dev, int port, int reg, u_int32_t *result)
633 {
634 	struct ata_pci_controller *ctlr;
635 	struct ata_channel *ch;
636 	device_t parent;
637 	u_char *smap;
638 
639 	parent = device_get_parent(dev);
640 	ctlr = device_get_softc(parent);
641 	ch = device_get_softc(dev);
642 	smap = ATA_INTEL_SMAP(ctlr, ch);
643 	port = (port == 1) ? 1 : 0;
644 	switch (reg) {
645 	case ATA_SSTATUS:
646 	    reg = 0;
647 	    break;
648 	case ATA_SERROR:
649 	    reg = 1;
650 	    break;
651 	case ATA_SCONTROL:
652 	    reg = 2;
653 	    break;
654 	default:
655 	    return (EINVAL);
656 	}
657 	ATA_INTEL_LOCK(ctlr);
658 	pci_write_config(parent, 0xa0,
659 	    0x50 + smap[port] * 0x10 + reg * 4, 4);
660 	*result = pci_read_config(parent, 0xa4, 4);
661 	ATA_INTEL_UNLOCK(ctlr);
662 	return (0);
663 }
664 
665 static int
666 ata_intel_sata_sidpr_read(device_t dev, int port, int reg, u_int32_t *result)
667 {
668 	struct ata_pci_controller *ctlr;
669 	struct ata_channel *ch;
670 	device_t parent;
671 
672 	parent = device_get_parent(dev);
673 	ctlr = device_get_softc(parent);
674 	ch = device_get_softc(dev);
675 	port = (port == 1) ? 1 : 0;
676 	switch (reg) {
677 	case ATA_SSTATUS:
678 	    reg = 0;
679 	    break;
680 	case ATA_SCONTROL:
681 	    reg = 1;
682 	    break;
683 	case ATA_SERROR:
684 	    reg = 2;
685 	    break;
686 	default:
687 	    return (EINVAL);
688 	}
689 	ATA_INTEL_LOCK(ctlr);
690 	ATA_IDX_OUTL(ch, ATA_IDX_ADDR, ((ch->unit * 2 + port) << 8) + reg);
691 	*result = ATA_IDX_INL(ch, ATA_IDX_DATA);
692 	ATA_INTEL_UNLOCK(ctlr);
693 	return (0);
694 }
695 
696 static int
697 ata_intel_sata_ahci_write(device_t dev, int port, int reg, u_int32_t value)
698 {
699 	struct ata_pci_controller *ctlr;
700 	struct ata_channel *ch;
701 	device_t parent;
702 	u_char *smap;
703 	int offset;
704 
705 	parent = device_get_parent(dev);
706 	ctlr = device_get_softc(parent);
707 	ch = device_get_softc(dev);
708 	port = (port == 1) ? 1 : 0;
709 	smap = ATA_INTEL_SMAP(ctlr, ch);
710 	offset = 0x100 + smap[port] * 0x80;
711 	switch (reg) {
712 	case ATA_SSTATUS:
713 	    reg = 0x28;
714 	    break;
715 	case ATA_SCONTROL:
716 	    reg = 0x2c;
717 	    break;
718 	case ATA_SERROR:
719 	    reg = 0x30;
720 	    break;
721 	default:
722 	    return (EINVAL);
723 	}
724 	ATA_OUTL(ctlr->r_res2, offset + reg, value);
725 	return (0);
726 }
727 
728 static int
729 ata_intel_sata_cscr_write(device_t dev, int port, int reg, u_int32_t value)
730 {
731 	struct ata_pci_controller *ctlr;
732 	struct ata_channel *ch;
733 	device_t parent;
734 	u_char *smap;
735 
736 	parent = device_get_parent(dev);
737 	ctlr = device_get_softc(parent);
738 	ch = device_get_softc(dev);
739 	smap = ATA_INTEL_SMAP(ctlr, ch);
740 	port = (port == 1) ? 1 : 0;
741 	switch (reg) {
742 	case ATA_SSTATUS:
743 	    reg = 0;
744 	    break;
745 	case ATA_SERROR:
746 	    reg = 1;
747 	    break;
748 	case ATA_SCONTROL:
749 	    reg = 2;
750 	    break;
751 	default:
752 	    return (EINVAL);
753 	}
754 	ATA_INTEL_LOCK(ctlr);
755 	pci_write_config(parent, 0xa0,
756 	    0x50 + smap[port] * 0x10 + reg * 4, 4);
757 	pci_write_config(parent, 0xa4, value, 4);
758 	ATA_INTEL_UNLOCK(ctlr);
759 	return (0);
760 }
761 
762 static int
763 ata_intel_sata_sidpr_write(device_t dev, int port, int reg, u_int32_t value)
764 {
765 	struct ata_pci_controller *ctlr;
766 	struct ata_channel *ch;
767 	device_t parent;
768 
769 	parent = device_get_parent(dev);
770 	ctlr = device_get_softc(parent);
771 	ch = device_get_softc(dev);
772 	port = (port == 1) ? 1 : 0;
773 	switch (reg) {
774 	case ATA_SSTATUS:
775 	    reg = 0;
776 	    break;
777 	case ATA_SCONTROL:
778 	    reg = 1;
779 	    break;
780 	case ATA_SERROR:
781 	    reg = 2;
782 	    break;
783 	default:
784 	    return (EINVAL);
785 	}
786 	ATA_INTEL_LOCK(ctlr);
787 	ATA_IDX_OUTL(ch, ATA_IDX_ADDR, ((ch->unit * 2 + port) << 8) + reg);
788 	ATA_IDX_OUTL(ch, ATA_IDX_DATA, value);
789 	ATA_INTEL_UNLOCK(ctlr);
790 	return (0);
791 }
792 
793 static int
794 ata_intel_sata_sidpr_test(device_t dev)
795 {
796 	struct ata_channel *ch = device_get_softc(dev);
797 	int port;
798 	uint32_t val;
799 
800 	port = (ch->flags & ATA_NO_SLAVE) ? 0 : 1;
801 	for (; port >= 0; port--) {
802 		ata_intel_sata_sidpr_read(dev, port, ATA_SCONTROL, &val);
803 		if ((val & ATA_SC_IPM_MASK) ==
804 		    (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))
805 			return (1);
806 		val |= ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER;
807 		ata_intel_sata_sidpr_write(dev, port, ATA_SCONTROL, val);
808 		ata_intel_sata_sidpr_read(dev, port, ATA_SCONTROL, &val);
809 		if ((val & ATA_SC_IPM_MASK) ==
810 		    (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))
811 			return (1);
812 	}
813 	if (bootverbose)
814 		device_printf(dev,
815 		    "SControl registers are not functional: %08x\n", val);
816 	return (0);
817 }
818 
819 static int
820 ata_intel_31244_ch_attach(device_t dev)
821 {
822     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
823     struct ata_channel *ch = device_get_softc(dev);
824     int i;
825     int ch_offset;
826 
827     ata_pci_dmainit(dev);
828 
829     ch_offset = 0x200 + ch->unit * 0x200;
830 
831     for (i = ATA_DATA; i < ATA_MAX_RES; i++)
832 	ch->r_io[i].res = ctlr->r_res2;
833 
834     /* setup ATA registers */
835     ch->r_io[ATA_DATA].offset = ch_offset + 0x00;
836     ch->r_io[ATA_FEATURE].offset = ch_offset + 0x06;
837     ch->r_io[ATA_COUNT].offset = ch_offset + 0x08;
838     ch->r_io[ATA_SECTOR].offset = ch_offset + 0x0c;
839     ch->r_io[ATA_CYL_LSB].offset = ch_offset + 0x10;
840     ch->r_io[ATA_CYL_MSB].offset = ch_offset + 0x14;
841     ch->r_io[ATA_DRIVE].offset = ch_offset + 0x18;
842     ch->r_io[ATA_COMMAND].offset = ch_offset + 0x1d;
843     ch->r_io[ATA_ERROR].offset = ch_offset + 0x04;
844     ch->r_io[ATA_STATUS].offset = ch_offset + 0x1c;
845     ch->r_io[ATA_ALTSTAT].offset = ch_offset + 0x28;
846     ch->r_io[ATA_CONTROL].offset = ch_offset + 0x29;
847 
848     /* setup DMA registers */
849     ch->r_io[ATA_SSTATUS].offset = ch_offset + 0x100;
850     ch->r_io[ATA_SERROR].offset = ch_offset + 0x104;
851     ch->r_io[ATA_SCONTROL].offset = ch_offset + 0x108;
852 
853     /* setup SATA registers */
854     ch->r_io[ATA_BMCMD_PORT].offset = ch_offset + 0x70;
855     ch->r_io[ATA_BMSTAT_PORT].offset = ch_offset + 0x72;
856     ch->r_io[ATA_BMDTP_PORT].offset = ch_offset + 0x74;
857 
858     ch->flags |= ATA_NO_SLAVE;
859     ch->flags |= ATA_SATA;
860     ata_pci_hw(dev);
861     ch->hw.status = ata_intel_31244_status;
862     ch->hw.tf_write = ata_intel_31244_tf_write;
863 
864     /* enable PHY state change interrupt */
865     ATA_OUTL(ctlr->r_res2, 0x4,
866 	     ATA_INL(ctlr->r_res2, 0x04) | (0x01 << (ch->unit << 3)));
867     return 0;
868 }
869 
870 static int
871 ata_intel_31244_ch_detach(device_t dev)
872 {
873 
874     ata_pci_dmafini(dev);
875     return (0);
876 }
877 
878 static int
879 ata_intel_31244_status(device_t dev)
880 {
881     /* do we have any PHY events ? */
882     ata_sata_phy_check_events(dev, -1);
883 
884     /* any drive action to take care of ? */
885     return ata_pci_status(dev);
886 }
887 
888 static void
889 ata_intel_31244_tf_write(struct ata_request *request)
890 {
891     struct ata_channel *ch = device_get_softc(request->parent);
892 
893     if (request->flags & ATA_R_48BIT) {
894 	ATA_IDX_OUTW(ch, ATA_FEATURE, request->u.ata.feature);
895 	ATA_IDX_OUTW(ch, ATA_COUNT, request->u.ata.count);
896 	ATA_IDX_OUTW(ch, ATA_SECTOR, ((request->u.ata.lba >> 16) & 0xff00) |
897 				      (request->u.ata.lba & 0x00ff));
898 	ATA_IDX_OUTW(ch, ATA_CYL_LSB, ((request->u.ata.lba >> 24) & 0xff00) |
899 				       ((request->u.ata.lba >> 8) & 0x00ff));
900 	ATA_IDX_OUTW(ch, ATA_CYL_MSB, ((request->u.ata.lba >> 32) & 0xff00) |
901 				       ((request->u.ata.lba >> 16) & 0x00ff));
902 	ATA_IDX_OUTW(ch, ATA_DRIVE, ATA_D_LBA | ATA_DEV(request->unit));
903     }
904     else {
905 	ATA_IDX_OUTB(ch, ATA_FEATURE, request->u.ata.feature);
906 	ATA_IDX_OUTB(ch, ATA_COUNT, request->u.ata.count);
907 	    ATA_IDX_OUTB(ch, ATA_SECTOR, request->u.ata.lba);
908 	    ATA_IDX_OUTB(ch, ATA_CYL_LSB, request->u.ata.lba >> 8);
909 	    ATA_IDX_OUTB(ch, ATA_CYL_MSB, request->u.ata.lba >> 16);
910 	    ATA_IDX_OUTB(ch, ATA_DRIVE,
911 			 ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit) |
912 			 ((request->u.ata.lba >> 24) & 0x0f));
913     }
914 }
915 
916 static void
917 ata_intel_31244_reset(device_t dev)
918 {
919     struct ata_channel *ch = device_get_softc(dev);
920 
921     if (ata_sata_phy_reset(dev, -1, 1))
922 	ata_generic_reset(dev);
923     else
924 	ch->devices = 0;
925 }
926 
927 ATA_DECLARE_DRIVER(ata_intel);
928