1*94673892Sjsg /* $OpenBSD: rkgrf.c,v 1.7 2023/09/22 01:10:44 jsg Exp $ */
2eabd9194Skettenis /*
3eabd9194Skettenis * Copyright (c) 2017 Mark Kettenis <kettenis@openbsd.org>
4eabd9194Skettenis *
5eabd9194Skettenis * Permission to use, copy, modify, and distribute this software for any
6eabd9194Skettenis * purpose with or without fee is hereby granted, provided that the above
7eabd9194Skettenis * copyright notice and this permission notice appear in all copies.
8eabd9194Skettenis *
9eabd9194Skettenis * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10eabd9194Skettenis * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11eabd9194Skettenis * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12eabd9194Skettenis * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13eabd9194Skettenis * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14eabd9194Skettenis * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15eabd9194Skettenis * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16eabd9194Skettenis */
17eabd9194Skettenis
18eabd9194Skettenis #include <sys/param.h>
19eabd9194Skettenis #include <sys/systm.h>
20eabd9194Skettenis #include <sys/device.h>
21eabd9194Skettenis
22eabd9194Skettenis #include <machine/intr.h>
23eabd9194Skettenis #include <machine/bus.h>
24eabd9194Skettenis #include <machine/fdt.h>
25eabd9194Skettenis
26eabd9194Skettenis #include <dev/ofw/openfirm.h>
27eabd9194Skettenis #include <dev/ofw/ofw_misc.h>
28eabd9194Skettenis #include <dev/ofw/fdt.h>
29eabd9194Skettenis
30*94673892Sjsg #include <machine/simplebusvar.h>
31b16010e4Spatrick
32eabd9194Skettenis struct rkgrf_softc {
33b16010e4Spatrick struct simplebus_softc sc_sbus;
34eabd9194Skettenis bus_space_tag_t sc_iot;
35eabd9194Skettenis bus_space_handle_t sc_ioh;
36eabd9194Skettenis };
37eabd9194Skettenis
38eabd9194Skettenis int rkgrf_match(struct device *, void *, void *);
39eabd9194Skettenis void rkgrf_attach(struct device *, struct device *, void *);
40eabd9194Skettenis
419fdf0c62Smpi const struct cfattach rkgrf_ca = {
42eabd9194Skettenis sizeof (struct rkgrf_softc), rkgrf_match, rkgrf_attach
43eabd9194Skettenis };
44eabd9194Skettenis
45eabd9194Skettenis struct cfdriver rkgrf_cd = {
46eabd9194Skettenis NULL, "rkgrf", DV_DULL
47eabd9194Skettenis };
48eabd9194Skettenis
49eabd9194Skettenis int
rkgrf_match(struct device * parent,void * match,void * aux)50eabd9194Skettenis rkgrf_match(struct device *parent, void *match, void *aux)
51eabd9194Skettenis {
52eabd9194Skettenis struct fdt_attach_args *faa = aux;
53eabd9194Skettenis
54ac971896Skettenis return (OF_is_compatible(faa->fa_node, "rockchip,rk3288-grf") ||
55ac971896Skettenis OF_is_compatible(faa->fa_node, "rockchip,rk3288-pmu") ||
56ac971896Skettenis OF_is_compatible(faa->fa_node, "rockchip,rk3288-sgrf") ||
57cc26cb1eSjmatthew OF_is_compatible(faa->fa_node, "rockchip,rk3308-grf") ||
58ac971896Skettenis OF_is_compatible(faa->fa_node, "rockchip,rk3399-grf") ||
59eabd9194Skettenis OF_is_compatible(faa->fa_node, "rockchip,rk3399-pmugrf"));
60eabd9194Skettenis }
61eabd9194Skettenis
62eabd9194Skettenis void
rkgrf_attach(struct device * parent,struct device * self,void * aux)63eabd9194Skettenis rkgrf_attach(struct device *parent, struct device *self, void *aux)
64eabd9194Skettenis {
65eabd9194Skettenis struct rkgrf_softc *sc = (struct rkgrf_softc *)self;
66eabd9194Skettenis struct fdt_attach_args *faa = aux;
67eabd9194Skettenis
68eabd9194Skettenis if (faa->fa_nreg < 1) {
69eabd9194Skettenis printf(": no registers\n");
70eabd9194Skettenis return;
71eabd9194Skettenis }
72eabd9194Skettenis
73eabd9194Skettenis sc->sc_iot = faa->fa_iot;
74eabd9194Skettenis
75eabd9194Skettenis if (bus_space_map(sc->sc_iot, faa->fa_reg[0].addr,
76eabd9194Skettenis faa->fa_reg[0].size, 0, &sc->sc_ioh)) {
77eabd9194Skettenis printf(": can't map registers\n");
78eabd9194Skettenis return;
79eabd9194Skettenis }
80eabd9194Skettenis
81eabd9194Skettenis regmap_register(faa->fa_node, sc->sc_iot, sc->sc_ioh,
82eabd9194Skettenis faa->fa_reg[0].size);
83b16010e4Spatrick
84b16010e4Spatrick /* Attach PHYs. */
85b16010e4Spatrick simplebus_attach(parent, &sc->sc_sbus.sc_dev, faa);
86eabd9194Skettenis }
87