1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2021 Semihalf
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
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/param.h>
28 #include <sys/bus.h>
29 #include <sys/kernel.h>
30 #include <sys/module.h>
31 #include <sys/taskqueue.h>
32
33 #include <dev/mmc/bridge.h>
34 #include <dev/mmc/mmcbrvar.h>
35 #include <dev/mmc/mmcreg.h>
36
37 #include <dev/mmc/mmc_helpers.h>
38
39 #include <contrib/dev/acpica/include/acpi.h>
40 #include <contrib/dev/acpica/include/accommon.h>
41 #include <dev/acpica/acpivar.h>
42
43 #include <dev/regulator/regulator.h>
44
45 #include <dev/sdhci/sdhci.h>
46 #include <dev/sdhci/sdhci_xenon.h>
47
48 #include "mmcbr_if.h"
49 #include "sdhci_if.h"
50
51 #include "opt_mmccam.h"
52 #include "opt_soc.h"
53
54 static char *sdhci_xenon_hids[] = {
55 "MRVL0002",
56 "MRVL0003",
57 "MRVL0004",
58 NULL
59 };
60
61 static int
sdhci_xenon_acpi_probe(device_t dev)62 sdhci_xenon_acpi_probe(device_t dev)
63 {
64 device_t bus;
65 int err;
66
67 bus = device_get_parent(dev);
68
69 err = ACPI_ID_PROBE(bus, dev, sdhci_xenon_hids, NULL);
70 if (err <= 0) {
71 device_set_desc(dev, "Armada Xenon SDHCI controller");
72 return (err);
73 }
74
75 return (ENXIO);
76 }
77
78 static int
sdhci_xenon_acpi_attach(device_t dev)79 sdhci_xenon_acpi_attach(device_t dev)
80 {
81 struct sdhci_xenon_softc *sc;
82 struct sdhci_slot *slot;
83 struct mmc_helper mmc_helper;
84
85 sc = device_get_softc(dev);
86 memset(&mmc_helper, 0, sizeof(mmc_helper));
87
88 slot = malloc(sizeof(*slot), M_DEVBUF, M_ZERO | M_WAITOK);
89
90 /*
91 * Don't use regularators.
92 * In ACPI mode the firmware takes care of them for us
93 */
94 sc->skip_regulators = true;
95 sc->slot = slot;
96
97 if (mmc_parse(dev, &mmc_helper, &slot->host) != 0)
98 return (ENXIO);
99
100 if (mmc_helper.props & MMC_PROP_NON_REMOVABLE) {
101 slot->opt |= SDHCI_NON_REMOVABLE;
102 if (bootverbose)
103 device_printf(dev, "Non-removable media\n");
104 }
105
106 sc->wp_inverted = mmc_helper.props & MMC_PROP_WP_INVERTED;
107
108 return (sdhci_xenon_attach(dev));
109 }
110
111 static device_method_t sdhci_xenon_acpi_methods[] = {
112 /* device_if */
113 DEVMETHOD(device_probe, sdhci_xenon_acpi_probe),
114 DEVMETHOD(device_attach, sdhci_xenon_acpi_attach),
115 DEVMETHOD(device_detach, sdhci_xenon_detach),
116
117 DEVMETHOD(sdhci_get_card_present, sdhci_generic_get_card_present),
118
119 DEVMETHOD_END
120 };
121
122 DEFINE_CLASS_1(sdhci_xenon, sdhci_xenon_acpi_driver, sdhci_xenon_acpi_methods,
123 sizeof(struct sdhci_xenon_softc), sdhci_xenon_driver);
124
125 DRIVER_MODULE(sdhci_xenon, acpi, sdhci_xenon_acpi_driver, NULL, NULL);
126
127 #ifndef MMCCAM
128 MMC_DECLARE_BRIDGE(sdhci_xenon_acpi);
129 #endif
130