2 * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
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.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/module.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
36 #include <sys/endian.h>
37 #include <sys/malloc.h>
39 #include <sys/mutex.h>
41 #include <sys/taskqueue.h>
43 #include <machine/stdarg.h>
44 #include <machine/resource.h>
45 #include <machine/bus.h>
47 #include <dev/pci/pcivar.h>
48 #include <dev/pci/pcireg.h>
49 #include <dev/ata/ata-all.h>
50 #include <dev/ata/ata-pci.h>
53 /* local prototypes */
54 static int ata_ati_chipinit(device_t dev);
55 static int ata_ati_dumb_ch_attach(device_t dev);
56 static int ata_ati_ixp700_ch_attach(device_t dev);
57 static int ata_ati_setmode(device_t dev, int target, int mode);
60 #define SII_MEMIO 1 /* must match ata_siliconimage.c's definition */
61 #define SII_BUG 0x04 /* must match ata_siliconimage.c's definition */
63 #define ATI_SATA SII_MEMIO
67 static int force_ahci = 1;
68 TUNABLE_INT("hw.ahci.force", &force_ahci);
71 * ATI chipset support functions
74 ata_ati_probe(device_t dev)
76 struct ata_pci_controller *ctlr = device_get_softc(dev);
77 static const struct ata_chip_id ids[] =
78 {{ ATA_ATI_IXP200, 0x00, ATI_PATA, 0, ATA_UDMA5, "IXP200" },
79 { ATA_ATI_IXP300, 0x00, ATI_PATA, 0, ATA_UDMA6, "IXP300" },
80 { ATA_ATI_IXP300_S1, 0x00, ATI_SATA, SII_BUG, ATA_SA150, "IXP300" },
81 { ATA_ATI_IXP400, 0x00, ATI_PATA, 0, ATA_UDMA6, "IXP400" },
82 { ATA_ATI_IXP400_S1, 0x00, ATI_SATA, SII_BUG, ATA_SA150, "IXP400" },
83 { ATA_ATI_IXP400_S2, 0x00, ATI_SATA, SII_BUG, ATA_SA150, "IXP400" },
84 { ATA_ATI_IXP600, 0x00, ATI_PATA, 0, ATA_UDMA6, "IXP600" },
85 { ATA_ATI_IXP600_S1, 0x00, ATI_AHCI, 0, ATA_SA300, "IXP600" },
86 { ATA_ATI_IXP700, 0x00, ATI_PATA, 0, ATA_UDMA6, "IXP700/800" },
87 { ATA_ATI_IXP700_S1, 0x00, ATI_AHCI, 0, ATA_SA300, "IXP700/800" },
88 { ATA_ATI_IXP700_S2, 0x00, ATI_AHCI, 0, ATA_SA300, "IXP700/800" },
89 { ATA_ATI_IXP700_S3, 0x00, ATI_AHCI, 0, ATA_SA300, "IXP700/800" },
90 { ATA_ATI_IXP700_S4, 0x00, ATI_AHCI, 0, ATA_SA300, "IXP700/800" },
91 { ATA_ATI_IXP800_S1, 0x00, ATI_AHCI, 0, ATA_SA300, "IXP800" },
92 { ATA_ATI_IXP800_S2, 0x00, ATI_AHCI, 0, ATA_SA300, "IXP800" },
93 { ATA_AMD_HUDSON2, 0x00, ATI_PATA, 0, ATA_UDMA6, "Hudson-2" },
94 { ATA_AMD_HUDSON2_S1, 0x00, ATI_AHCI, 0, ATA_SA300, "Hudson-2" },
95 { ATA_AMD_HUDSON2_S2, 0x00, ATI_AHCI, 0, ATA_SA300, "Hudson-2" },
96 { ATA_AMD_HUDSON2_S3, 0x00, ATI_AHCI, 0, ATA_SA300, "Hudson-2" },
97 { ATA_AMD_HUDSON2_S4, 0x00, ATI_AHCI, 0, ATA_SA300, "Hudson-2" },
98 { ATA_AMD_HUDSON2_S5, 0x00, ATI_AHCI, 0, ATA_SA300, "Hudson-2" },
101 if (pci_get_vendor(dev) != ATA_AMD_ID && pci_get_vendor(dev) != ATA_ATI_ID)
104 if (!(ctlr->chip = ata_match_chip(dev, ids)))
109 switch (ctlr->chip->cfg1) {
111 ctlr->chipinit = ata_ati_chipinit;
115 * the ATI SATA controller is actually a SiI 3112 controller
117 ctlr->chipinit = ata_sii_chipinit;
120 if (force_ahci == 1 || pci_get_subclass(dev) != PCIS_STORAGE_IDE)
121 ctlr->chipinit = ata_ahci_chipinit;
123 ctlr->chipinit = ata_ati_chipinit;
126 return (BUS_PROBE_LOW_PRIORITY);
130 ata_ati_chipinit(device_t dev)
132 struct ata_pci_controller *ctlr = device_get_softc(dev);
136 if (ata_setup_interrupt(dev, ata_generic_intr))
139 if (ctlr->chip->cfg1 == ATI_AHCI) {
140 ctlr->ch_attach = ata_ati_dumb_ch_attach;
141 ctlr->setmode = ata_sata_setmode;
144 switch (ctlr->chip->chipid) {
146 /* IXP600 only has 1 PATA channel */
151 * When "combined mode" is enabled, an additional PATA channel is
152 * emulated with two SATA ports and appears on this device.
153 * This mode can only be detected via SMB controller.
155 smbdev = pci_find_device(ATA_ATI_ID, 0x4385);
156 if (smbdev != NULL) {
157 satacfg = pci_read_config(smbdev, 0xad, 1);
159 device_printf(dev, "SATA controller %s (%s%s channel)\n",
160 (satacfg & 0x01) == 0 ? "disabled" : "enabled",
161 (satacfg & 0x08) == 0 ? "" : "combined mode, ",
162 (satacfg & 0x10) == 0 ? "primary" : "secondary");
163 ctlr->chipset_data = (void *)(uintptr_t)satacfg;
165 * If SATA controller is enabled but combined mode is disabled,
166 * we have only one PATA channel. Ignore a non-existent channel.
168 if ((satacfg & 0x09) == 0x01)
169 ctlr->ichannels &= ~(1 << ((satacfg & 0x10) >> 4));
171 ctlr->ch_attach = ata_ati_ixp700_ch_attach;
177 ctlr->setmode = ata_ati_setmode;
182 ata_ati_dumb_ch_attach(device_t dev)
184 struct ata_channel *ch = device_get_softc(dev);
186 if (ata_pci_ch_attach(dev))
188 ch->flags |= ATA_SATA;
193 ata_ati_ixp700_ch_attach(device_t dev)
195 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
196 struct ata_channel *ch = device_get_softc(dev);
197 uint8_t satacfg = (uint8_t)(uintptr_t)ctlr->chipset_data;
199 /* Setup the usual register normal pci style. */
200 if (ata_pci_ch_attach(dev))
203 /* One of channels is PATA, another is SATA. */
204 if (ch->unit == ((satacfg & 0x10) >> 4))
205 ch->flags |= ATA_SATA;
210 ata_ati_setmode(device_t dev, int target, int mode)
212 device_t parent = device_get_parent(dev);
213 struct ata_pci_controller *ctlr = device_get_softc(parent);
214 struct ata_channel *ch = device_get_softc(dev);
215 int devno = (ch->unit << 1) + target;
216 int offset = (devno ^ 0x01) << 3;
218 static const uint8_t piotimings[] = { 0x5d, 0x47, 0x34, 0x22, 0x20 };
219 static const uint8_t dmatimings[] = { 0x77, 0x21, 0x20 };
221 mode = min(mode, ctlr->chip->max_dma);
222 if (mode >= ATA_UDMA0) {
223 /* Set UDMA mode, enable UDMA, set WDMA2/PIO4 */
224 pci_write_config(parent, 0x56,
225 (pci_read_config(parent, 0x56, 2) &
226 ~(0xf << (devno << 2))) |
227 ((mode & ATA_MODE_MASK) << (devno << 2)), 2);
228 pci_write_config(parent, 0x54,
229 pci_read_config(parent, 0x54, 1) |
231 pci_write_config(parent, 0x44,
232 (pci_read_config(parent, 0x44, 4) &
234 (dmatimings[2] << offset), 4);
236 } else if (mode >= ATA_WDMA0) {
237 /* Disable UDMA, set WDMA mode and timings, calculate PIO. */
238 pci_write_config(parent, 0x54,
239 pci_read_config(parent, 0x54, 1) &
240 ~(0x01 << devno), 1);
241 pci_write_config(parent, 0x44,
242 (pci_read_config(parent, 0x44, 4) &
244 (dmatimings[mode & ATA_MODE_MASK] << offset), 4);
245 piomode = (mode == ATA_WDMA0) ? ATA_PIO0 :
246 (mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4;
248 /* Disable UDMA, set requested PIO. */
249 pci_write_config(parent, 0x54,
250 pci_read_config(parent, 0x54, 1) &
251 ~(0x01 << devno), 1);
254 /* Set PIO mode and timings, calculated above. */
255 pci_write_config(parent, 0x4a,
256 (pci_read_config(parent, 0x4a, 2) &
257 ~(0xf << (devno << 2))) |
258 ((piomode - ATA_PIO0) << (devno<<2)),2);
259 pci_write_config(parent, 0x40,
260 (pci_read_config(parent, 0x40, 4) &
262 (piotimings[ata_mode2idx(piomode)] << offset), 4);
266 ATA_DECLARE_DRIVER(ata_ati);
267 MODULE_DEPEND(ata_ati, ata_ahci, 1, 1, 1);
268 MODULE_DEPEND(ata_ati, ata_sii, 1, 1, 1);