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_amd_ch_attach(device_t dev);
55 static int ata_amd_chipinit(device_t dev);
56 static int ata_amd_setmode(device_t dev, int target, int mode);
60 #define AMD_CABLE 0x02
63 * Advanced Micro Devices (AMD) chipset support functions
66 ata_amd_probe(device_t dev)
68 struct ata_pci_controller *ctlr = device_get_softc(dev);
69 static const struct ata_chip_id ids[] =
70 {{ ATA_AMD756, 0x00, 0x00, 0, ATA_UDMA4, "756" },
71 { ATA_AMD766, 0x00, AMD_CABLE|AMD_BUG, 0, ATA_UDMA5, "766" },
72 { ATA_AMD768, 0x00, AMD_CABLE, 0, ATA_UDMA5, "768" },
73 { ATA_AMD8111, 0x00, AMD_CABLE, 0, ATA_UDMA6, "8111" },
74 { ATA_AMD5536, 0x00, 0x00, 0, ATA_UDMA5, "CS5536" },
77 if (pci_get_vendor(dev) != ATA_AMD_ID)
80 if (!(ctlr->chip = ata_match_chip(dev, ids)))
84 ctlr->chipinit = ata_amd_chipinit;
85 return (BUS_PROBE_LOW_PRIORITY);
89 ata_amd_chipinit(device_t dev)
91 struct ata_pci_controller *ctlr = device_get_softc(dev);
93 if (ata_setup_interrupt(dev, ata_generic_intr))
96 /* disable/set prefetch, postwrite */
97 if (ctlr->chip->cfg1 & AMD_BUG)
98 pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) & 0x0f, 1);
100 pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) | 0xf0, 1);
102 ctlr->ch_attach = ata_amd_ch_attach;
103 ctlr->setmode = ata_amd_setmode;
108 ata_amd_setmode(device_t dev, int target, int mode)
110 device_t parent = device_get_parent(dev);
111 struct ata_pci_controller *ctlr = device_get_softc(parent);
112 struct ata_channel *ch = device_get_softc(dev);
113 int devno = (ch->unit << 1) + target;
115 static const uint8_t timings[] =
116 { 0xa8, 0x65, 0x42, 0x22, 0x20, 0xa8, 0x22, 0x20 };
117 static const uint8_t modes[] =
118 { 0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6, 0xc7 };
119 int reg = 0x53 - devno;
121 mode = min(mode, ctlr->chip->max_dma);
122 if (ctlr->chip->cfg1 & AMD_CABLE) {
123 if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
124 !(pci_read_config(parent, 0x42, 1) & (1 << devno))) {
125 ata_print_cable(dev, "controller");
129 /* Set UDMA timings. */
130 if (mode >= ATA_UDMA0) {
131 pci_write_config(parent, reg, modes[mode & ATA_MODE_MASK], 1);
134 pci_write_config(parent, reg, 0x8b, 1);
137 /* Set WDMA/PIO timings. */
138 pci_write_config(parent, reg - 0x08, timings[ata_mode2idx(piomode)], 1);
143 ata_amd_ch_attach(device_t dev)
145 struct ata_pci_controller *ctlr;
146 struct ata_channel *ch;
149 ctlr = device_get_softc(device_get_parent(dev));
150 ch = device_get_softc(dev);
151 error = ata_pci_ch_attach(dev);
152 if (ctlr->chip->cfg1 & AMD_CABLE)
153 ch->flags |= ATA_CHECKS_CABLE;
157 ATA_DECLARE_DRIVER(ata_amd);