1 /* $OpenBSD: qcdwusb.c,v 1.2 2023/09/22 01:10:44 jsg Exp $ */
2 /*
3 * Copyright (c) 2017, 2018 Mark Kettenis <kettenis@openbsd.org>
4 * Copyright (c) 2020, 2022 Patrick Wildt <patrick@blueri.se>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <sys/param.h>
20 #include <sys/systm.h>
21 #include <sys/device.h>
22
23 #include <machine/bus.h>
24 #include <machine/fdt.h>
25 #include <machine/simplebusvar.h>
26
27 #include <dev/ofw/openfirm.h>
28 #include <dev/ofw/ofw_clock.h>
29 #include <dev/ofw/ofw_power.h>
30 #include <dev/ofw/fdt.h>
31
32 struct qcdwusb_softc {
33 struct simplebus_softc sc_sbus;
34 };
35
36 int qcdwusb_match(struct device *, void *, void *);
37 void qcdwusb_attach(struct device *, struct device *, void *);
38
39 const struct cfattach qcdwusb_ca = {
40 sizeof(struct qcdwusb_softc), qcdwusb_match, qcdwusb_attach
41 };
42
43 struct cfdriver qcdwusb_cd = {
44 NULL, "qcdwusb", DV_DULL
45 };
46
47 int
qcdwusb_match(struct device * parent,void * match,void * aux)48 qcdwusb_match(struct device *parent, void *match, void *aux)
49 {
50 struct fdt_attach_args *faa = aux;
51
52 return OF_is_compatible(faa->fa_node, "qcom,dwc3");
53 }
54
55 void
qcdwusb_attach(struct device * parent,struct device * self,void * aux)56 qcdwusb_attach(struct device *parent, struct device *self, void *aux)
57 {
58 struct qcdwusb_softc *sc = (struct qcdwusb_softc *)self;
59 struct fdt_attach_args *faa = aux;
60
61 power_domain_enable(faa->fa_node);
62 clock_enable_all(faa->fa_node);
63 reset_deassert_all(faa->fa_node);
64
65 simplebus_attach(parent, &sc->sc_sbus.sc_dev, faa);
66 }
67