1 /* $OpenBSD: gecko.c,v 1.2 2022/03/13 08:04:38 mpi Exp $ */
2
3 /*
4 * Copyright (c) 2007 Mark Kettenis
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/device.h>
21 #include <sys/kernel.h>
22 #include <sys/systm.h>
23
24 #include <machine/autoconf.h>
25 #include <machine/bus.h>
26 #include <machine/cpu.h>
27 #include <machine/iomod.h>
28 #include <machine/pdc.h>
29
30 #include <hppa/dev/cpudevs.h>
31
32 struct gecko_softc {
33 struct device sc_dv;
34
35 bus_space_tag_t sc_iot;
36 bus_space_handle_t sc_ioh;
37 };
38
39 int gecko_match(struct device *, void *, void *);
40 void gecko_attach(struct device *, struct device *, void *);
41
42 const struct cfattach gecko_ca = {
43 sizeof(struct gecko_softc), gecko_match, gecko_attach
44 };
45
46 struct cfdriver gecko_cd = {
47 NULL, "gecko", DV_DULL
48 };
49
50 int
gecko_match(struct device * parent,void * match,void * aux)51 gecko_match(struct device *parent, void *match, void *aux)
52 {
53 struct confargs *ca = aux;
54
55 if (ca->ca_type.iodc_type != HPPA_TYPE_BCPORT ||
56 ca->ca_type.iodc_sv_model != HPPA_BCPORT_PORT)
57 return (0);
58
59 if (ca->ca_type.iodc_model == 0x50 &&
60 ca->ca_type.iodc_revision == 0x00)
61 return (1);
62
63 return (0);
64 }
65
66 void
gecko_attach(struct device * parent,struct device * self,void * aux)67 gecko_attach(struct device *parent, struct device *self, void *aux)
68 {
69 struct gecko_softc *sc = (struct gecko_softc *)self;
70 struct confargs *ca = aux, nca;
71 bus_space_handle_t ioh;
72 volatile struct iomod *regs;
73
74 sc->sc_iot = ca->ca_iot;
75 if (bus_space_map(sc->sc_iot, ca->ca_hpa, IOMOD_HPASIZE, 0,
76 &sc->sc_ioh)) {
77 printf(": can't map IO space\n");
78 return;
79 }
80 regs = bus_space_vaddr(ca->ca_iot, ioh);
81
82 #if 1
83 printf(": %x-%x", regs->io_io_low, regs->io_io_high);
84 #endif
85
86 printf("\n");
87
88 nca = *ca;
89 nca.ca_hpamask = HPPA_IOBEGIN;
90 pdc_scanbus(self, &nca, MAXMODBUS, regs->io_io_low);
91 }
92