2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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.
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/module.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
38 #include <sys/endian.h>
39 #include <sys/malloc.h>
41 #include <sys/mutex.h>
43 #include <sys/taskqueue.h>
45 #include <machine/stdarg.h>
46 #include <machine/resource.h>
47 #include <machine/bus.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>
55 /* local prototypes */
56 static int ata_amd_ch_attach(device_t dev);
57 static int ata_amd_chipinit(device_t dev);
58 static int ata_amd_setmode(device_t dev, int target, int mode);
62 #define AMD_CABLE 0x02
65 * Advanced Micro Devices (AMD) chipset support functions
68 ata_amd_probe(device_t dev)
70 struct ata_pci_controller *ctlr = device_get_softc(dev);
71 static const struct ata_chip_id ids[] =
72 {{ ATA_AMD756, 0x00, 0x00, 0, ATA_UDMA4, "756" },
73 { ATA_AMD766, 0x00, AMD_CABLE|AMD_BUG, 0, ATA_UDMA5, "766" },
74 { ATA_AMD768, 0x00, AMD_CABLE, 0, ATA_UDMA5, "768" },
75 { ATA_AMD8111, 0x00, AMD_CABLE, 0, ATA_UDMA6, "8111" },
76 { ATA_AMD5536, 0x00, 0x00, 0, ATA_UDMA5, "CS5536" },
79 if (pci_get_vendor(dev) != ATA_AMD_ID)
82 if (!(ctlr->chip = ata_match_chip(dev, ids)))
86 ctlr->chipinit = ata_amd_chipinit;
87 return (BUS_PROBE_LOW_PRIORITY);
91 ata_amd_chipinit(device_t dev)
93 struct ata_pci_controller *ctlr = device_get_softc(dev);
95 if (ata_setup_interrupt(dev, ata_generic_intr))
98 /* disable/set prefetch, postwrite */
99 if (ctlr->chip->cfg1 & AMD_BUG)
100 pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) & 0x0f, 1);
102 pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) | 0xf0, 1);
104 ctlr->ch_attach = ata_amd_ch_attach;
105 ctlr->setmode = ata_amd_setmode;
110 ata_amd_setmode(device_t dev, int target, int mode)
112 device_t parent = device_get_parent(dev);
113 struct ata_pci_controller *ctlr = device_get_softc(parent);
114 struct ata_channel *ch = device_get_softc(dev);
115 int devno = (ch->unit << 1) + target;
117 static const uint8_t timings[] =
118 { 0xa8, 0x65, 0x42, 0x22, 0x20, 0xa8, 0x22, 0x20 };
119 static const uint8_t modes[] =
120 { 0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6, 0xc7 };
121 int reg = 0x53 - devno;
123 mode = min(mode, ctlr->chip->max_dma);
124 if (ctlr->chip->cfg1 & AMD_CABLE) {
125 if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
126 !(pci_read_config(parent, 0x42, 1) & (1 << devno))) {
127 ata_print_cable(dev, "controller");
131 /* Set UDMA timings. */
132 if (mode >= ATA_UDMA0) {
133 pci_write_config(parent, reg, modes[mode & ATA_MODE_MASK], 1);
136 pci_write_config(parent, reg, 0x8b, 1);
139 /* Set WDMA/PIO timings. */
140 pci_write_config(parent, reg - 0x08, timings[ata_mode2idx(piomode)], 1);
145 ata_amd_ch_attach(device_t dev)
147 struct ata_pci_controller *ctlr;
148 struct ata_channel *ch;
151 ctlr = device_get_softc(device_get_parent(dev));
152 ch = device_get_softc(dev);
153 error = ata_pci_ch_attach(dev);
154 if (ctlr->chip->cfg1 & AMD_CABLE)
155 ch->flags |= ATA_CHECKS_CABLE;
159 ATA_DECLARE_DRIVER(ata_amd);