1 /* $OpenBSD: rkdwusb.c,v 1.5 2023/09/22 01:10:44 jsg Exp $ */
2 /*
3 * Copyright (c) 2017 Mark Kettenis <kettenis@openbsd.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include <sys/param.h>
19 #include <sys/systm.h>
20 #include <sys/device.h>
21
22 #include <machine/bus.h>
23 #include <machine/fdt.h>
24 #include <machine/simplebusvar.h>
25
26 #include <dev/ofw/openfirm.h>
27 #include <dev/ofw/ofw_clock.h>
28 #include <dev/ofw/fdt.h>
29
30 struct rkdwusb_softc {
31 struct simplebus_softc sc_sbus;
32 };
33
34 int rkdwusb_match(struct device *, void *, void *);
35 void rkdwusb_attach(struct device *, struct device *, void *);
36
37 const struct cfattach rkdwusb_ca = {
38 sizeof(struct rkdwusb_softc), rkdwusb_match, rkdwusb_attach
39 };
40
41 struct cfdriver rkdwusb_cd = {
42 NULL, "rkdwusb", DV_DULL
43 };
44
45 int
rkdwusb_match(struct device * parent,void * match,void * aux)46 rkdwusb_match(struct device *parent, void *match, void *aux)
47 {
48 struct fdt_attach_args *faa = aux;
49
50 return OF_is_compatible(faa->fa_node, "rockchip,rk3399-dwc3");
51 }
52
53 void
rkdwusb_attach(struct device * parent,struct device * self,void * aux)54 rkdwusb_attach(struct device *parent, struct device *self, void *aux)
55 {
56 struct rkdwusb_softc *sc = (struct rkdwusb_softc *)self;
57 struct fdt_attach_args *faa = aux;
58
59 clock_enable_all(faa->fa_node);
60 reset_deassert_all(faa->fa_node);
61
62 simplebus_attach(parent, &sc->sc_sbus.sc_dev, faa);
63 }
64