1 /*-
2 * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
14 *
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.
25 */
26
27 /* local prototypes */
28 static int ata_amd_chipinit(device_t dev);
29 static void ata_amd_setmode(device_t dev, int mode);
30
31 /* misc defines */
32 #define AMD_BUG 0x01
33 #define AMD_CABLE 0x02
34
35 /*
36 * Advanced Micro Devices (AMD) chipset support functions
37 */
38 int
ata_amd_ident(device_t dev)39 ata_amd_ident(device_t dev)
40 {
41 struct ata_pci_controller *ctlr = device_get_softc(dev);
42 static const struct ata_chip_id ids[] =
43 {{ ATA_AMD756, 0x00, 0x00, 0, ATA_UDMA4, "756" },
44 { ATA_AMD766, 0x00, AMD_CABLE|AMD_BUG, 0, ATA_UDMA5, "766" },
45 { ATA_AMD768, 0x00, AMD_CABLE, 0, ATA_UDMA5, "768" },
46 { ATA_AMD8111, 0x00, AMD_CABLE, 0, ATA_UDMA6, "8111" },
47 { ATA_AMD5536, 0x00, 0x00, 0, ATA_UDMA5, "CS5536" },
48 { 0, 0, 0, 0, 0, 0}};
49
50 if (pci_get_vendor(dev) != ATA_AMD_ID)
51 return ENXIO;
52
53 if (!(ctlr->chip = ata_match_chip(dev, ids)))
54 return ENXIO;
55
56 ata_set_desc(dev);
57 ctlr->chipinit = ata_amd_chipinit;
58 return 0;
59 }
60
61 static int
ata_amd_chipinit(device_t dev)62 ata_amd_chipinit(device_t dev)
63 {
64 struct ata_pci_controller *ctlr = device_get_softc(dev);
65
66 if (ata_setup_interrupt(dev, ata_generic_intr))
67 return ENXIO;
68
69 /* disable/set prefetch, postwrite */
70 if (ctlr->chip->cfg1 & AMD_BUG)
71 pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) & 0x0f, 1);
72 else
73 pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) | 0xf0, 1);
74
75 ctlr->setmode = ata_amd_setmode;
76 return 0;
77 }
78
79 static void
ata_amd_setmode(device_t dev,int mode)80 ata_amd_setmode(device_t dev, int mode)
81 {
82 device_t gparent = GRANDPARENT(dev);
83 struct ata_pci_controller *ctlr = device_get_softc(gparent);
84 struct ata_channel *ch = device_get_softc(device_get_parent(dev));
85 struct ata_device *atadev = device_get_softc(dev);
86 int devno = (ch->unit << 1) + atadev->unit;
87 static const uint8_t timings[] =
88 { 0xa8, 0x65, 0x42, 0x22, 0x20, 0x42, 0x22, 0x20,
89 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
90 static const uint8_t modes[] =
91 { 0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6, 0xc7 };
92 int reg = 0x53 - devno;
93 int error;
94
95 mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
96
97 if (ctlr->chip->cfg1 & AMD_CABLE) {
98 if (mode > ATA_UDMA2 &&
99 !(pci_read_config(gparent, 0x42, 1) & (1 << devno))) {
100 ata_print_cable(dev, "controller");
101 mode = ATA_UDMA2;
102 }
103 }
104 else
105 mode = ata_check_80pin(dev, mode);
106
107 error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
108 if (bootverbose)
109 device_printf(dev, "%ssetting %s on %s chip\n",
110 (error) ? "FAILURE " : "", ata_mode2str(mode),
111 ctlr->chip->text);
112 if (!error) {
113 pci_write_config(gparent, reg - 0x08, timings[ata_mode2idx(mode)], 1);
114 if (mode >= ATA_UDMA0)
115 pci_write_config(gparent, reg, modes[mode & ATA_MODE_MASK], 1);
116 else
117 pci_write_config(gparent, reg, 0x8b, 1);
118 atadev->mode = mode;
119 }
120 }
121