1 /*-
2 * Copyright (c) 2009-2012 Alexander Motin <mav@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 #include <sys/cdefs.h>
28 #include "opt_acpi.h"
29 #include "opt_platform.h"
30
31 #include <sys/param.h>
32 #include <sys/module.h>
33 #include <sys/systm.h>
34 #include <sys/kernel.h>
35 #include <sys/bus.h>
36 #include <sys/conf.h>
37 #include <sys/endian.h>
38 #include <sys/malloc.h>
39 #include <sys/lock.h>
40 #include <sys/mutex.h>
41 #include <sys/rman.h>
42
43 #include <machine/bus.h>
44 #include <machine/resource.h>
45
46 #include <dev/ahci/ahci.h>
47
48 #ifdef DEV_ACPI
49 #include <contrib/dev/acpica/include/acpi.h>
50 #include <dev/acpica/acpivar.h>
51
52 #include <dev/pci/pcivar.h>
53 #include <dev/pci/pcireg.h>
54 #endif
55
56 #ifdef FDT
57 #include <dev/ofw/ofw_bus.h>
58 #include <dev/ofw/ofw_bus_subr.h>
59
60 static struct ofw_compat_data compat_data[] = {
61 {"generic-ahci", 1},
62 {"snps,dwc-ahci", 1},
63 {"marvell,armada-3700-ahci", 1},
64 {NULL, 0}
65 };
66
67 static int
ahci_fdt_probe(device_t dev)68 ahci_fdt_probe(device_t dev)
69 {
70 struct ahci_controller *ctlr = device_get_softc(dev);
71 phandle_t node;
72
73 if (!ofw_bus_status_okay(dev))
74 return (ENXIO);
75
76 if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
77 return (ENXIO);
78
79 device_set_desc(dev, "AHCI SATA controller");
80 node = ofw_bus_get_node(dev);
81 ctlr->dma_coherent = OF_hasprop(node, "dma-coherent");
82 return (BUS_PROBE_DEFAULT);
83 }
84 #endif
85
86 #ifdef DEV_ACPI
87
88 static const struct ahci_acpi_quirk {
89 const char* hid;
90 u_int quirks;
91 } ahci_acpi_quirks[] = {
92 { "NXP0004", AHCI_Q_NOPMP },
93 { NULL, 0 }
94 };
95
96
97 static int
ahci_acpi_probe(device_t dev)98 ahci_acpi_probe(device_t dev)
99 {
100 struct ahci_controller *ctlr = device_get_softc(dev);
101 ACPI_HANDLE h;
102 int i;
103
104 if ((h = acpi_get_handle(dev)) == NULL)
105 return (ENXIO);
106
107 if (pci_get_class(dev) == PCIC_STORAGE &&
108 pci_get_subclass(dev) == PCIS_STORAGE_SATA &&
109 pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0) {
110 device_set_desc(dev, "AHCI SATA controller");
111 if (ACPI_FAILURE(acpi_GetInteger(h, "_CCA",
112 &ctlr->dma_coherent)))
113 ctlr->dma_coherent = 0;
114 if (bootverbose)
115 device_printf(dev, "Bus is%s cache-coherent\n",
116 ctlr->dma_coherent ? "" : " not");
117 for (i = 0; ahci_acpi_quirks[i].hid != NULL; i++) {
118 if (acpi_MatchHid(h, ahci_acpi_quirks[i].hid) != ACPI_MATCHHID_NOMATCH) {
119 ctlr->quirks = ahci_acpi_quirks[i].quirks;
120 break;
121 }
122 }
123 return (BUS_PROBE_DEFAULT);
124 }
125
126 return (ENXIO);
127 }
128 #endif
129
130 static int
ahci_gen_ctlr_reset(device_t dev)131 ahci_gen_ctlr_reset(device_t dev)
132 {
133
134 return ahci_ctlr_reset(dev);
135 }
136
137 static int
ahci_gen_attach(device_t dev)138 ahci_gen_attach(device_t dev)
139 {
140 struct ahci_controller *ctlr = device_get_softc(dev);
141 int error;
142
143 ctlr->r_rid = 0;
144 ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ctlr->r_rid,
145 RF_ACTIVE);
146 if (ctlr->r_mem == NULL)
147 return (ENXIO);
148
149 /* Setup controller defaults. */
150 ctlr->numirqs = 1;
151
152 /* Reset controller */
153 if ((error = ahci_gen_ctlr_reset(dev)) == 0)
154 error = ahci_attach(dev);
155
156 if (error != 0) {
157 if (ctlr->r_mem != NULL)
158 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid,
159 ctlr->r_mem);
160 }
161 return error;
162 }
163
164 static int
ahci_gen_detach(device_t dev)165 ahci_gen_detach(device_t dev)
166 {
167
168 ahci_detach(dev);
169 return (0);
170 }
171
172 #ifdef FDT
173 static device_method_t ahci_fdt_methods[] = {
174 DEVMETHOD(device_probe, ahci_fdt_probe),
175 DEVMETHOD(device_attach, ahci_gen_attach),
176 DEVMETHOD(device_detach, ahci_gen_detach),
177 DEVMETHOD(bus_print_child, ahci_print_child),
178 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource),
179 DEVMETHOD(bus_release_resource, ahci_release_resource),
180 DEVMETHOD(bus_setup_intr, ahci_setup_intr),
181 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr),
182 DEVMETHOD(bus_child_location, ahci_child_location),
183 DEVMETHOD(bus_get_dma_tag, ahci_get_dma_tag),
184 DEVMETHOD_END
185 };
186 static driver_t ahci_fdt_driver = {
187 "ahci",
188 ahci_fdt_methods,
189 sizeof(struct ahci_controller)
190 };
191 DRIVER_MODULE(ahci_fdt, simplebus, ahci_fdt_driver, NULL, NULL);
192 #endif
193
194 #ifdef DEV_ACPI
195 static device_method_t ahci_acpi_methods[] = {
196 DEVMETHOD(device_probe, ahci_acpi_probe),
197 DEVMETHOD(device_attach, ahci_gen_attach),
198 DEVMETHOD(device_detach, ahci_gen_detach),
199 DEVMETHOD(bus_print_child, ahci_print_child),
200 DEVMETHOD(bus_alloc_resource, ahci_alloc_resource),
201 DEVMETHOD(bus_release_resource, ahci_release_resource),
202 DEVMETHOD(bus_setup_intr, ahci_setup_intr),
203 DEVMETHOD(bus_teardown_intr,ahci_teardown_intr),
204 DEVMETHOD(bus_child_location, ahci_child_location),
205 DEVMETHOD(bus_get_dma_tag, ahci_get_dma_tag),
206 DEVMETHOD_END
207 };
208 static driver_t ahci_acpi_driver = {
209 "ahci",
210 ahci_acpi_methods,
211 sizeof(struct ahci_controller)
212 };
213 DRIVER_MODULE(ahci_acpi, acpi, ahci_acpi_driver, NULL, NULL);
214 #endif
215