1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2023 Emmanuel Vadot <manu@freebsd.org>
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/systm.h>
29 #include <sys/bus.h>
30 #include <sys/kernel.h>
31 #include <sys/lock.h>
32 #include <sys/module.h>
33 #include <sys/mutex.h>
34 #include <sys/resource.h>
35 #include <sys/rman.h>
36 #include <sys/sysctl.h>
37 #include <sys/taskqueue.h>
38
39 #include <machine/bus.h>
40 #include <machine/resource.h>
41
42 #include <dev/fdt/fdt_common.h>
43 #include <dev/ofw/ofw_bus.h>
44 #include <dev/ofw/ofw_bus_subr.h>
45
46 #include <dev/ofw/ofw_subr.h>
47 #include <dev/clk/clk.h>
48 #include <dev/clk/clk_fixed.h>
49 #include <dev/ofw/openfirm.h>
50 #include <dev/syscon/syscon.h>
51 #include <dev/phy/phy.h>
52
53 #include <dev/mmc/bridge.h>
54
55 #include <dev/sdhci/sdhci.h>
56 #include <dev/sdhci/sdhci_fdt.h>
57
58 #include "mmcbr_if.h"
59 #include "sdhci_if.h"
60
61 #include "opt_mmccam.h"
62
63 #include "clkdev_if.h"
64 #include "syscon_if.h"
65
66 static int
sdhci_fdt_xilinx_probe(device_t dev)67 sdhci_fdt_xilinx_probe(device_t dev)
68 {
69 struct sdhci_fdt_softc *sc = device_get_softc(dev);
70
71 if (!ofw_bus_is_compatible(dev, "xlnx,zynqmp-8.9a"))
72 return (ENXIO);
73
74 sc->quirks = 0;
75 device_set_desc(dev, "ZynqMP generic fdt SDHCI controller");
76
77 return (0);
78 }
79
80 static int
sdhci_fdt_xilinx_attach(device_t dev)81 sdhci_fdt_xilinx_attach(device_t dev)
82 {
83 struct sdhci_fdt_softc *sc = device_get_softc(dev);
84 int err;
85
86 err = sdhci_init_clocks(dev);
87 if (err != 0) {
88 device_printf(dev, "Cannot init clocks\n");
89 return (err);
90 }
91 sdhci_export_clocks(sc);
92 if ((err = sdhci_init_phy(sc)) != 0) {
93 device_printf(dev, "Cannot init phy\n");
94 return (err);
95 }
96 if ((err = sdhci_get_syscon(sc)) != 0) {
97 device_printf(dev, "Cannot get syscon handle\n");
98 return (err);
99 }
100
101 return (sdhci_fdt_attach(dev));
102 }
103
104 static device_method_t sdhci_fdt_xilinx_methods[] = {
105 /* device_if */
106 DEVMETHOD(device_probe, sdhci_fdt_xilinx_probe),
107 DEVMETHOD(device_attach, sdhci_fdt_xilinx_attach),
108
109 DEVMETHOD_END
110 };
111 extern driver_t sdhci_fdt_driver;
112
113 DEFINE_CLASS_1(sdhci_xilinx, sdhci_fdt_xilinx_driver, sdhci_fdt_xilinx_methods,
114 sizeof(struct sdhci_fdt_softc), sdhci_fdt_driver);
115 DRIVER_MODULE(sdhci_xilinx, simplebus, sdhci_fdt_xilinx_driver, NULL, NULL);
116