1 /* $NetBSD: epcom_ts.c,v 1.9 2023/12/20 13:55:18 thorpej Exp $ */
2 /*
3 * Copyright (c) 2002
4 * Ichiro FUKUHARA <ichiro@ichiro.org>.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: epcom_ts.c,v 1.9 2023/12/20 13:55:18 thorpej Exp $");
31
32 /* Front-end of epcom */
33
34 #include <sys/types.h>
35 #include <sys/device.h>
36 #include <sys/systm.h>
37 #include <sys/param.h>
38
39 #include <sys/termios.h>
40
41 #include <machine/intr.h>
42 #include <sys/bus.h>
43
44 #include <arm/ep93xx/epcomreg.h>
45 #include <arm/ep93xx/epcomvar.h>
46 #include <arm/ep93xx/ep93xxreg.h>
47 #include <arm/ep93xx/ep93xxvar.h>
48 #include <arm/ep93xx/epsocvar.h>
49
50 #include <evbarm/tsarm/epcom_tsvar.h>
51
52 static int epcom_ts_match(device_t, cfdata_t, void *);
53 static void epcom_ts_attach(device_t, device_t, void *);
54
55 CFATTACH_DECL_NEW(epcom_ts, sizeof(struct epcom_ts_softc),
56 epcom_ts_match, epcom_ts_attach, NULL, NULL);
57
58 static int
epcom_ts_match(device_t parent,cfdata_t match,void * aux)59 epcom_ts_match(device_t parent, cfdata_t match, void *aux)
60 {
61 if (strcmp(match->cf_name, "epcom") == 0)
62 return 1;
63 return 0;
64 }
65
66 static void
epcom_ts_attach(device_t parent,device_t self,void * aux)67 epcom_ts_attach(device_t parent, device_t self, void *aux)
68 {
69 struct epcom_ts_softc *esc = device_private(self);
70 struct epcom_softc *sc = &esc->sc_epcom;
71 struct epsoc_attach_args *sa = aux;
72 uint32_t pwrcnt;
73 bus_space_handle_t ioh;
74
75 sc->sc_dev = self;
76 esc->sc_iot = sa->sa_iot;
77 sc->sc_iot = sa->sa_iot;
78 sc->sc_hwbase = sa->sa_addr;
79
80 aprint_normal("\n");
81
82 bus_space_map(sa->sa_iot, sa->sa_addr, sa->sa_size, 0, &sc->sc_ioh);
83
84 bus_space_map(sa->sa_iot, EP93XX_APB_HWBASE + EP93XX_APB_SYSCON,
85 EP93XX_APB_SYSCON_SIZE, 0, &ioh);
86 pwrcnt = bus_space_read_4(sa->sa_iot, ioh, EP93XX_SYSCON_PwrCnt);
87 pwrcnt &= ~(PwrCnt_UARTBAUD);
88 bus_space_write_4(sa->sa_iot, ioh, EP93XX_SYSCON_PwrCnt, pwrcnt);
89 bus_space_unmap(sa->sa_iot, ioh, EP93XX_APB_SYSCON_SIZE);
90
91 epcom_attach_subr(sc);
92 ep93xx_intr_establish(sa->sa_intr, IPL_SERIAL, epcomintr, sc);
93 }
94