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siside.c revision 1.17
      1 /*	$NetBSD: siside.c,v 1.17 2005/06/16 19:30:02 bouyer Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1999, 2000, 2001 Manuel Bouyer.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Manuel Bouyer.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: siside.c,v 1.17 2005/06/16 19:30:02 bouyer Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 
     38 #include <dev/pci/pcivar.h>
     39 #include <dev/pci/pcidevs.h>
     40 #include <dev/pci/pciidereg.h>
     41 #include <dev/pci/pciidevar.h>
     42 #include <dev/pci/pciide_sis_reg.h>
     43 
     44 static void sis_chip_map(struct pciide_softc *, struct pci_attach_args *);
     45 static void sis_sata_chip_map(struct pciide_softc *, struct pci_attach_args *);
     46 static void sis_setup_channel(struct ata_channel *);
     47 static void sis96x_setup_channel(struct ata_channel *);
     48 
     49 static int  sis_hostbr_match(struct pci_attach_args *);
     50 static int  sis_south_match(struct pci_attach_args *);
     51 
     52 static int  siside_match(struct device *, struct cfdata *, void *);
     53 static void siside_attach(struct device *, struct device *, void *);
     54 
     55 CFATTACH_DECL(siside, sizeof(struct pciide_softc),
     56     siside_match, siside_attach, NULL, NULL);
     57 
     58 static const struct pciide_product_desc pciide_sis_products[] =  {
     59 	{ PCI_PRODUCT_SIS_5597_IDE,
     60 	  0,
     61 	  NULL,
     62 	  sis_chip_map,
     63 	},
     64 	{ PCI_PRODUCT_SIS_180_SATA,
     65 	  0,
     66 	  NULL,
     67 	  sis_sata_chip_map,
     68 	},
     69 	{ 0,
     70 	  0,
     71 	  NULL,
     72 	  NULL
     73 	}
     74 };
     75 
     76 static int
     77 siside_match(struct device *parent, struct cfdata *match, void *aux)
     78 {
     79 	struct pci_attach_args *pa = aux;
     80 
     81 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SIS) {
     82 		if (pciide_lookup_product(pa->pa_id, pciide_sis_products))
     83 			return (2);
     84 	}
     85 	return (0);
     86 }
     87 
     88 static void
     89 siside_attach(struct device *parent, struct device *self, void *aux)
     90 {
     91 	struct pci_attach_args *pa = aux;
     92 	struct pciide_softc *sc = (struct pciide_softc *)self;
     93 
     94 	pciide_common_attach(sc, pa,
     95 	    pciide_lookup_product(pa->pa_id, pciide_sis_products));
     96 
     97 }
     98 
     99 static struct sis_hostbr_type {
    100 	u_int16_t id;
    101 	u_int8_t rev;
    102 	u_int8_t udma_mode;
    103 	const char *name;
    104 	u_int8_t type;
    105 #define SIS_TYPE_NOUDMA	0
    106 #define SIS_TYPE_66	1
    107 #define SIS_TYPE_100OLD	2
    108 #define SIS_TYPE_100NEW 3
    109 #define SIS_TYPE_133OLD 4
    110 #define SIS_TYPE_133NEW 5
    111 #define SIS_TYPE_SOUTH	6
    112 } sis_hostbr_type[] = {
    113 	/* Most infos here are from sos (at) freebsd.org */
    114 	{PCI_PRODUCT_SIS_530HB, 0x00, 4, "530", SIS_TYPE_66},
    115 #if 0
    116 	/*
    117 	 * controllers associated to a rev 0x2 530 Host to PCI Bridge
    118 	 * have problems with UDMA (info provided by Christos)
    119 	 */
    120 	{PCI_PRODUCT_SIS_530HB, 0x02, 0, "530 (buggy)", SIS_TYPE_NOUDMA},
    121 #endif
    122 	{PCI_PRODUCT_SIS_540HB, 0x00, 4, "540", SIS_TYPE_66},
    123 	{PCI_PRODUCT_SIS_550HB, 0x00, 4, "550", SIS_TYPE_66},
    124 	{PCI_PRODUCT_SIS_620,   0x00, 4, "620", SIS_TYPE_66},
    125 	{PCI_PRODUCT_SIS_630,   0x00, 4, "630", SIS_TYPE_66},
    126 	{PCI_PRODUCT_SIS_630,   0x30, 5, "630S", SIS_TYPE_100NEW},
    127 	{PCI_PRODUCT_SIS_633,   0x00, 5, "633", SIS_TYPE_100NEW},
    128 	{PCI_PRODUCT_SIS_635,   0x00, 5, "635", SIS_TYPE_100NEW},
    129 	{PCI_PRODUCT_SIS_640,   0x00, 4, "640", SIS_TYPE_SOUTH},
    130 	{PCI_PRODUCT_SIS_645,   0x00, 6, "645", SIS_TYPE_SOUTH},
    131 	{PCI_PRODUCT_SIS_646,   0x00, 6, "645DX", SIS_TYPE_SOUTH},
    132 	{PCI_PRODUCT_SIS_648,   0x00, 6, "648", SIS_TYPE_SOUTH},
    133 	{PCI_PRODUCT_SIS_650,   0x00, 6, "650", SIS_TYPE_SOUTH},
    134 	{PCI_PRODUCT_SIS_651,   0x00, 6, "651", SIS_TYPE_SOUTH},
    135 	{PCI_PRODUCT_SIS_652,   0x00, 6, "652", SIS_TYPE_SOUTH},
    136 	{PCI_PRODUCT_SIS_655,   0x00, 6, "655", SIS_TYPE_SOUTH},
    137 	{PCI_PRODUCT_SIS_658,   0x00, 6, "658", SIS_TYPE_SOUTH},
    138 	{PCI_PRODUCT_SIS_730,   0x00, 5, "730", SIS_TYPE_100OLD},
    139 	{PCI_PRODUCT_SIS_733,   0x00, 5, "733", SIS_TYPE_100NEW},
    140 	{PCI_PRODUCT_SIS_735,   0x00, 5, "735", SIS_TYPE_100NEW},
    141 	{PCI_PRODUCT_SIS_740,   0x00, 5, "740", SIS_TYPE_SOUTH},
    142 	{PCI_PRODUCT_SIS_741,   0x00, 5, "741", SIS_TYPE_SOUTH},
    143 	{PCI_PRODUCT_SIS_745,   0x00, 5, "745", SIS_TYPE_100NEW},
    144 	{PCI_PRODUCT_SIS_746,   0x00, 6, "746", SIS_TYPE_SOUTH},
    145 	{PCI_PRODUCT_SIS_748,   0x00, 6, "748", SIS_TYPE_SOUTH},
    146 	{PCI_PRODUCT_SIS_750,   0x00, 6, "750", SIS_TYPE_SOUTH},
    147 	{PCI_PRODUCT_SIS_751,   0x00, 6, "751", SIS_TYPE_SOUTH},
    148 	{PCI_PRODUCT_SIS_752,   0x00, 6, "752", SIS_TYPE_SOUTH},
    149 	{PCI_PRODUCT_SIS_755,   0x00, 6, "755", SIS_TYPE_SOUTH},
    150 	/*
    151 	 * From sos (at) freebsd.org: the 0x961 ID will never be found in real world
    152 	 * {PCI_PRODUCT_SIS_961,   0x00, 6, "961", SIS_TYPE_133NEW},
    153 	 */
    154 	{PCI_PRODUCT_SIS_962,   0x00, 6, "962", SIS_TYPE_133NEW},
    155 	{PCI_PRODUCT_SIS_963,   0x00, 6, "963", SIS_TYPE_133NEW},
    156 	{PCI_PRODUCT_SIS_964,   0x00, 6, "964", SIS_TYPE_133NEW},
    157 	{PCI_PRODUCT_SIS_965,   0x00, 6, "965", SIS_TYPE_133NEW},
    158 };
    159 
    160 static struct sis_hostbr_type *sis_hostbr_type_match;
    161 
    162 static int
    163 sis_hostbr_match(struct pci_attach_args *pa)
    164 {
    165 	int i;
    166 	pcireg_t id, reg;
    167 
    168 	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_SIS)
    169 		return 0;
    170 	if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SIS_85C503) {
    171 		reg = pci_conf_read(pa->pa_pc, pa->pa_tag, SIS96x_DETECT);
    172 		pci_conf_write(pa->pa_pc, pa->pa_tag, SIS96x_DETECT,
    173 		    reg | SIS96x_DETECT_MASQ);
    174 		id = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG);
    175 		if (((PCI_PRODUCT(id) & 0xfff0) != 0x0960)
    176 		    && (PCI_PRODUCT(id) != 0x0018)) {
    177 			pci_conf_write(pa->pa_pc, pa->pa_tag, SIS96x_DETECT,
    178 			    reg);
    179 		} else {
    180 			pa->pa_id = id;
    181 		}
    182 	}
    183 
    184 	sis_hostbr_type_match = NULL;
    185 	for (i = 0;
    186 	    i < sizeof(sis_hostbr_type) / sizeof(sis_hostbr_type[0]);
    187 	    i++) {
    188 		if (PCI_PRODUCT(pa->pa_id) == sis_hostbr_type[i].id &&
    189 		    PCI_REVISION(pa->pa_class) >= sis_hostbr_type[i].rev)
    190 			sis_hostbr_type_match = &sis_hostbr_type[i];
    191 	}
    192 	return (sis_hostbr_type_match != NULL);
    193 }
    194 
    195 static int
    196 sis_south_match(struct pci_attach_args *pa)
    197 {
    198 
    199 	return (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SIS &&
    200 		PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SIS_85C503 &&
    201 		PCI_REVISION(pa->pa_class) >= 0x10);
    202 }
    203 
    204 static void
    205 sis_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa)
    206 {
    207 	struct pciide_channel *cp;
    208 	int channel;
    209 	u_int8_t sis_ctr0 = pciide_pci_read(sc->sc_pc, sc->sc_tag, SIS_CTRL0);
    210 	pcireg_t interface = PCI_INTERFACE(pa->pa_class);
    211 	pcireg_t rev = PCI_REVISION(pa->pa_class);
    212 	bus_size_t cmdsize, ctlsize;
    213 
    214 	if (pciide_chipen(sc, pa) == 0)
    215 		return;
    216 
    217 	aprint_normal("%s: Silicon Integrated Systems ",
    218 	    sc->sc_wdcdev.sc_atac.atac_dev.dv_xname);
    219 	pci_find_device(NULL, sis_hostbr_match);
    220 	if (sis_hostbr_type_match) {
    221 		if (sis_hostbr_type_match->type == SIS_TYPE_SOUTH) {
    222 			pciide_pci_write(sc->sc_pc, sc->sc_tag, SIS_REG_57,
    223 			    pciide_pci_read(sc->sc_pc, sc->sc_tag,
    224 			    SIS_REG_57) & 0x7f);
    225 			if (PCI_PRODUCT(pci_conf_read(sc->sc_pc, sc->sc_tag,
    226 			    PCI_ID_REG)) == SIS_PRODUCT_5518) {
    227 				aprint_normal("96X UDMA%d",
    228 				    sis_hostbr_type_match->udma_mode);
    229 				sc->sis_type = SIS_TYPE_133NEW;
    230 				sc->sc_wdcdev.sc_atac.atac_udma_cap =
    231 			    	    sis_hostbr_type_match->udma_mode;
    232 			} else {
    233 				if (pci_find_device(NULL, sis_south_match)) {
    234 					sc->sis_type = SIS_TYPE_133OLD;
    235 					sc->sc_wdcdev.sc_atac.atac_udma_cap =
    236 				    	    sis_hostbr_type_match->udma_mode;
    237 				} else {
    238 					sc->sis_type = SIS_TYPE_100NEW;
    239 					sc->sc_wdcdev.sc_atac.atac_udma_cap =
    240 					    sis_hostbr_type_match->udma_mode;
    241 				}
    242 			}
    243 		} else {
    244 			sc->sis_type = sis_hostbr_type_match->type;
    245 			sc->sc_wdcdev.sc_atac.atac_udma_cap =
    246 		    	    sis_hostbr_type_match->udma_mode;
    247 		}
    248 		aprint_normal(sis_hostbr_type_match->name);
    249 	} else {
    250 		aprint_normal("5597/5598");
    251 		if (rev >= 0xd0) {
    252 			sc->sc_wdcdev.sc_atac.atac_udma_cap = 2;
    253 			sc->sis_type = SIS_TYPE_66;
    254 		} else {
    255 			sc->sc_wdcdev.sc_atac.atac_udma_cap = 0;
    256 			sc->sis_type = SIS_TYPE_NOUDMA;
    257 		}
    258 	}
    259 	aprint_normal(" IDE controller (rev. 0x%02x)\n",
    260 	    PCI_REVISION(pa->pa_class));
    261 	aprint_normal("%s: bus-master DMA support present",
    262 	    sc->sc_wdcdev.sc_atac.atac_dev.dv_xname);
    263 	pciide_mapreg_dma(sc, pa);
    264 	aprint_normal("\n");
    265 
    266 	sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA16 | ATAC_CAP_DATA32;
    267 	if (sc->sc_dma_ok) {
    268 		sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA;
    269 		sc->sc_wdcdev.irqack = pciide_irqack;
    270 		if (sc->sis_type >= SIS_TYPE_66)
    271 			sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_UDMA;
    272 	}
    273 
    274 	sc->sc_wdcdev.sc_atac.atac_pio_cap = 4;
    275 	sc->sc_wdcdev.sc_atac.atac_dma_cap = 2;
    276 
    277 	sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray;
    278 	sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS;
    279 	switch(sc->sis_type) {
    280 	case SIS_TYPE_NOUDMA:
    281 	case SIS_TYPE_66:
    282 	case SIS_TYPE_100OLD:
    283 		sc->sc_wdcdev.sc_atac.atac_set_modes = sis_setup_channel;
    284 		pciide_pci_write(sc->sc_pc, sc->sc_tag, SIS_MISC,
    285 		    pciide_pci_read(sc->sc_pc, sc->sc_tag, SIS_MISC) |
    286 		    SIS_MISC_TIM_SEL | SIS_MISC_FIFO_SIZE | SIS_MISC_GTC);
    287 		break;
    288 	case SIS_TYPE_100NEW:
    289 	case SIS_TYPE_133OLD:
    290 		sc->sc_wdcdev.sc_atac.atac_set_modes = sis_setup_channel;
    291 		pciide_pci_write(sc->sc_pc, sc->sc_tag, SIS_REG_49,
    292 		    pciide_pci_read(sc->sc_pc, sc->sc_tag, SIS_REG_49) | 0x01);
    293 		break;
    294 	case SIS_TYPE_133NEW:
    295 		sc->sc_wdcdev.sc_atac.atac_set_modes = sis96x_setup_channel;
    296 		pciide_pci_write(sc->sc_pc, sc->sc_tag, SIS_REG_50,
    297 		    pciide_pci_read(sc->sc_pc, sc->sc_tag, SIS_REG_50) & 0xf7);
    298 		pciide_pci_write(sc->sc_pc, sc->sc_tag, SIS_REG_52,
    299 		    pciide_pci_read(sc->sc_pc, sc->sc_tag, SIS_REG_52) & 0xf7);
    300 		break;
    301 	}
    302 
    303 	wdc_allocate_regs(&sc->sc_wdcdev);
    304 
    305 	for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels;
    306 	     channel++) {
    307 		cp = &sc->pciide_channels[channel];
    308 		if (pciide_chansetup(sc, channel, interface) == 0)
    309 			continue;
    310 		if ((channel == 0 && (sis_ctr0 & SIS_CTRL0_CHAN0_EN) == 0) ||
    311 		    (channel == 1 && (sis_ctr0 & SIS_CTRL0_CHAN1_EN) == 0)) {
    312 			aprint_normal("%s: %s channel ignored (disabled)\n",
    313 			    sc->sc_wdcdev.sc_atac.atac_dev.dv_xname, cp->name);
    314 			cp->ata_channel.ch_flags |= ATACH_DISABLED;
    315 			continue;
    316 		}
    317 		pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize,
    318 		    pciide_pci_intr);
    319 	}
    320 }
    321 
    322 static void
    323 sis96x_setup_channel(struct ata_channel *chp)
    324 {
    325 	struct ata_drive_datas *drvp;
    326 	int drive, s;
    327 	u_int32_t sis_tim;
    328 	u_int32_t idedma_ctl;
    329 	int regtim;
    330 	struct pciide_channel *cp = CHAN_TO_PCHAN(chp);
    331 	struct pciide_softc *sc = CHAN_TO_PCIIDE(chp);
    332 
    333 	sis_tim = 0;
    334 	idedma_ctl = 0;
    335 	/* setup DMA if needed */
    336 	pciide_channel_dma_setup(cp);
    337 
    338 	for (drive = 0; drive < 2; drive++) {
    339 		regtim = SIS_TIM133(
    340 		    pciide_pci_read(sc->sc_pc, sc->sc_tag, SIS_REG_57),
    341 		    chp->ch_channel, drive);
    342 		drvp = &chp->ch_drive[drive];
    343 		/* If no drive, skip */
    344 		if ((drvp->drive_flags & DRIVE) == 0)
    345 			continue;
    346 		/* add timing values, setup DMA if needed */
    347 		if (drvp->drive_flags & DRIVE_UDMA) {
    348 			/* use Ultra/DMA */
    349 			s = splbio();
    350 			drvp->drive_flags &= ~DRIVE_DMA;
    351 			splx(s);
    352 			if (pciide_pci_read(sc->sc_pc, sc->sc_tag,
    353 			    SIS96x_REG_CBL(chp->ch_channel)) & SIS96x_REG_CBL_33) {
    354 				if (drvp->UDMA_mode > 2)
    355 					drvp->UDMA_mode = 2;
    356 			}
    357 			sis_tim |= sis_udma133new_tim[drvp->UDMA_mode];
    358 			sis_tim |= sis_pio133new_tim[drvp->PIO_mode];
    359 			idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive);
    360 		} else if (drvp->drive_flags & DRIVE_DMA) {
    361 			/*
    362 			 * use Multiword DMA
    363 			 * Timings will be used for both PIO and DMA,
    364 			 * so adjust DMA mode if needed
    365 			 */
    366 			if (drvp->PIO_mode > (drvp->DMA_mode + 2))
    367 				drvp->PIO_mode = drvp->DMA_mode + 2;
    368 			if (drvp->DMA_mode + 2 > (drvp->PIO_mode))
    369 				drvp->DMA_mode = (drvp->PIO_mode > 2) ?
    370 				    drvp->PIO_mode - 2 : 0;
    371 			sis_tim |= sis_dma133new_tim[drvp->DMA_mode];
    372 			idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive);
    373 		} else {
    374 			sis_tim |= sis_pio133new_tim[drvp->PIO_mode];
    375 		}
    376 		ATADEBUG_PRINT(("sis96x_setup_channel: new timings reg for "
    377 		    "channel %d drive %d: 0x%x (reg 0x%x)\n",
    378 		    chp->ch_channel, drive, sis_tim, regtim), DEBUG_PROBE);
    379 		pci_conf_write(sc->sc_pc, sc->sc_tag, regtim, sis_tim);
    380 	}
    381 	if (idedma_ctl != 0) {
    382 		/* Add software bits in status register */
    383 		bus_space_write_1(sc->sc_dma_iot, cp->dma_iohs[IDEDMA_CTL], 0,
    384 		    idedma_ctl);
    385 	}
    386 }
    387 
    388 static void
    389 sis_setup_channel(struct ata_channel *chp)
    390 {
    391 	struct ata_drive_datas *drvp;
    392 	int drive, s;
    393 	u_int32_t sis_tim;
    394 	u_int32_t idedma_ctl;
    395 	struct pciide_channel *cp = CHAN_TO_PCHAN(chp);
    396 	struct pciide_softc *sc = CHAN_TO_PCIIDE(chp);
    397 
    398 	ATADEBUG_PRINT(("sis_setup_channel: old timings reg for "
    399 	    "channel %d 0x%x\n", chp->ch_channel,
    400 	    pci_conf_read(sc->sc_pc, sc->sc_tag, SIS_TIM(chp->ch_channel))),
    401 	    DEBUG_PROBE);
    402 	sis_tim = 0;
    403 	idedma_ctl = 0;
    404 	/* setup DMA if needed */
    405 	pciide_channel_dma_setup(cp);
    406 
    407 	for (drive = 0; drive < 2; drive++) {
    408 		drvp = &chp->ch_drive[drive];
    409 		/* If no drive, skip */
    410 		if ((drvp->drive_flags & DRIVE) == 0)
    411 			continue;
    412 		/* add timing values, setup DMA if needed */
    413 		if ((drvp->drive_flags & DRIVE_DMA) == 0 &&
    414 		    (drvp->drive_flags & DRIVE_UDMA) == 0)
    415 			goto pio;
    416 
    417 		if (drvp->drive_flags & DRIVE_UDMA) {
    418 			/* use Ultra/DMA */
    419 			s = splbio();
    420 			drvp->drive_flags &= ~DRIVE_DMA;
    421 			splx(s);
    422 			if (pciide_pci_read(sc->sc_pc, sc->sc_tag,
    423 			    SIS_REG_CBL) & SIS_REG_CBL_33(chp->ch_channel)) {
    424 				if (drvp->UDMA_mode > 2)
    425 					drvp->UDMA_mode = 2;
    426 			}
    427 			switch (sc->sis_type) {
    428 			case SIS_TYPE_66:
    429 			case SIS_TYPE_100OLD:
    430 				sis_tim |= sis_udma66_tim[drvp->UDMA_mode] <<
    431 				    SIS_TIM66_UDMA_TIME_OFF(drive);
    432 				break;
    433 			case SIS_TYPE_100NEW:
    434 				sis_tim |=
    435 				    sis_udma100new_tim[drvp->UDMA_mode] <<
    436 				    SIS_TIM100_UDMA_TIME_OFF(drive);
    437 			case SIS_TYPE_133OLD:
    438 				sis_tim |=
    439 				    sis_udma133old_tim[drvp->UDMA_mode] <<
    440 				    SIS_TIM100_UDMA_TIME_OFF(drive);
    441 				break;
    442 			default:
    443 				aprint_error("unknown SiS IDE type %d\n",
    444 				    sc->sis_type);
    445 			}
    446 		} else {
    447 			/*
    448 			 * use Multiword DMA
    449 			 * Timings will be used for both PIO and DMA,
    450 			 * so adjust DMA mode if needed
    451 			 */
    452 			if (drvp->PIO_mode > (drvp->DMA_mode + 2))
    453 				drvp->PIO_mode = drvp->DMA_mode + 2;
    454 			if (drvp->DMA_mode + 2 > (drvp->PIO_mode))
    455 				drvp->DMA_mode = (drvp->PIO_mode > 2) ?
    456 				    drvp->PIO_mode - 2 : 0;
    457 			if (drvp->DMA_mode == 0)
    458 				drvp->PIO_mode = 0;
    459 		}
    460 		idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive);
    461 pio:		switch (sc->sis_type) {
    462 		case SIS_TYPE_NOUDMA:
    463 		case SIS_TYPE_66:
    464 		case SIS_TYPE_100OLD:
    465 			sis_tim |= sis_pio_act[drvp->PIO_mode] <<
    466 			    SIS_TIM66_ACT_OFF(drive);
    467 			sis_tim |= sis_pio_rec[drvp->PIO_mode] <<
    468 			    SIS_TIM66_REC_OFF(drive);
    469 			break;
    470 		case SIS_TYPE_100NEW:
    471 		case SIS_TYPE_133OLD:
    472 			sis_tim |= sis_pio_act[drvp->PIO_mode] <<
    473 			    SIS_TIM100_ACT_OFF(drive);
    474 			sis_tim |= sis_pio_rec[drvp->PIO_mode] <<
    475 			    SIS_TIM100_REC_OFF(drive);
    476 			break;
    477 		default:
    478 			aprint_error("unknown SiS IDE type %d\n",
    479 			    sc->sis_type);
    480 		}
    481 	}
    482 	ATADEBUG_PRINT(("sis_setup_channel: new timings reg for "
    483 	    "channel %d 0x%x\n", chp->ch_channel, sis_tim), DEBUG_PROBE);
    484 	pci_conf_write(sc->sc_pc, sc->sc_tag, SIS_TIM(chp->ch_channel),
    485 		       sis_tim);
    486 	if (idedma_ctl != 0) {
    487 		/* Add software bits in status register */
    488 		bus_space_write_1(sc->sc_dma_iot, cp->dma_iohs[IDEDMA_CTL], 0,
    489 		    idedma_ctl);
    490 	}
    491 }
    492 
    493 static void
    494 sis_sata_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa)
    495 {
    496 	struct pciide_channel *cp;
    497 	pcireg_t interface = PCI_INTERFACE(pa->pa_class);
    498 	int channel;
    499 	bus_size_t cmdsize, ctlsize;
    500 
    501 	if (pciide_chipen(sc, pa) == 0)
    502 		return;
    503 
    504 	if (interface == 0) {
    505 		ATADEBUG_PRINT(("sis_sata_chip_map interface == 0\n"),
    506 		    DEBUG_PROBE);
    507 		interface = PCIIDE_INTERFACE_BUS_MASTER_DMA |
    508 		    PCIIDE_INTERFACE_PCI(0) | PCIIDE_INTERFACE_PCI(1);
    509 	}
    510 
    511 	aprint_normal("%s: Silicon Integrated Systems 180/96X SATA controller (rev. 0x%02x)\n",
    512 		      sc->sc_wdcdev.sc_atac.atac_dev.dv_xname,
    513 		      PCI_REVISION(pa->pa_class));
    514 
    515 	aprint_normal("%s: bus-master DMA support present",
    516 	    sc->sc_wdcdev.sc_atac.atac_dev.dv_xname);
    517 	pciide_mapreg_dma(sc, pa);
    518 	aprint_normal("\n");
    519 
    520 	if (sc->sc_dma_ok) {
    521 		sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_UDMA | ATAC_CAP_DMA;
    522 		sc->sc_wdcdev.irqack = pciide_irqack;
    523 	}
    524 	sc->sc_wdcdev.sc_atac.atac_pio_cap = 4;
    525 	sc->sc_wdcdev.sc_atac.atac_dma_cap = 2;
    526 	sc->sc_wdcdev.sc_atac.atac_udma_cap = 6;
    527 
    528 	sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray;
    529 	sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS;
    530 	sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16 | ATAC_CAP_DATA32;
    531 	sc->sc_wdcdev.sc_atac.atac_set_modes = sata_setup_channel;
    532 
    533 	wdc_allocate_regs(&sc->sc_wdcdev);
    534 
    535 	for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels;
    536 	     channel++) {
    537 		cp = &sc->pciide_channels[channel];
    538 		if (pciide_chansetup(sc, channel, interface) == 0)
    539 			continue;
    540 		pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize,
    541 		    pciide_pci_intr);
    542 	}
    543 }
    544