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epcom_ts.c revision 1.7 
      1 /*	$NetBSD: epcom_ts.c,v 1.7 2012/10/27 17:17:49 chs Exp $ */
      2 /*
      3  * Copyright (c) 2002
      4  *	Ichiro FUKUHARA <ichiro (at) 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 1.7 2012/10/27 17:17:49 chs 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 #include <sys/malloc.h>
     39 
     40 #include <sys/termios.h>
     41 
     42 #include <machine/intr.h>
     43 #include <sys/bus.h>
     44 
     45 #include <arm/ep93xx/epcomreg.h>
     46 #include <arm/ep93xx/epcomvar.h>
     47 #include <arm/ep93xx/ep93xxreg.h>
     48 #include <arm/ep93xx/ep93xxvar.h>
     49 #include <arm/ep93xx/epsocvar.h>
     50 
     51 #include <evbarm/tsarm/epcom_tsvar.h>
     52 
     53 static int	epcom_ts_match(device_t, cfdata_t, void *);
     54 static void	epcom_ts_attach(device_t, device_t, void *);
     55 
     56 CFATTACH_DECL_NEW(epcom_ts, sizeof(struct epcom_ts_softc),
     57     epcom_ts_match, epcom_ts_attach, NULL, NULL);
     58 
     59 static int
     60 epcom_ts_match(device_t parent, cfdata_t match, void *aux)
     61 {
     62 	if (strcmp(match->cf_name, "epcom") == 0)
     63 		return 1;
     64 	return 0;
     65 }
     66 
     67 static void
     68 epcom_ts_attach(device_t parent, device_t self, void *aux)
     69 {
     70 	struct epcom_ts_softc *esc = device_private(self);
     71 	struct epcom_softc *sc = &esc->sc_epcom;
     72 	struct epsoc_attach_args *sa = aux;
     73 	u_int32_t pwrcnt;
     74 	bus_space_handle_t ioh;
     75 
     76 	sc->sc_dev = self;
     77 	esc->sc_iot = sa->sa_iot;
     78 	sc->sc_iot = sa->sa_iot;
     79 	sc->sc_hwbase = sa->sa_addr;
     80 
     81 	aprint_normal("\n");
     82 
     83 	bus_space_map(sa->sa_iot, sa->sa_addr, sa->sa_size, 0, &sc->sc_ioh);
     84 
     85 	bus_space_map(sa->sa_iot, EP93XX_APB_HWBASE + EP93XX_APB_SYSCON,
     86 		EP93XX_APB_SYSCON_SIZE, 0, &ioh);
     87 	pwrcnt = bus_space_read_4(sa->sa_iot, ioh, EP93XX_SYSCON_PwrCnt);
     88 	pwrcnt &= ~(PwrCnt_UARTBAUD);
     89 	bus_space_write_4(sa->sa_iot, ioh, EP93XX_SYSCON_PwrCnt, pwrcnt);
     90 	bus_space_unmap(sa->sa_iot, ioh, EP93XX_APB_SYSCON_SIZE);
     91 
     92 	epcom_attach_subr(sc);
     93 	ep93xx_intr_establish(sa->sa_intr, IPL_SERIAL, epcomintr, sc);
     94 }
     95