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epcom_ts.c revision 1.3
      1 /*	$NetBSD: epcom_ts.c,v 1.3 2009/03/14 15:36:05 dsl 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  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by Ichiro FUKUHARA.
     18  * 4. The name of the company nor the name of the author may be used to
     19  *    endorse or promote products derived from this software without specific
     20  *    prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
     26  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  */
     34 
     35 #include <sys/cdefs.h>
     36 __KERNEL_RCSID(0, "$NetBSD: epcom_ts.c,v 1.3 2009/03/14 15:36:05 dsl Exp $");
     37 
     38 /* Front-end of epcom */
     39 
     40 #include <sys/types.h>
     41 #include <sys/device.h>
     42 #include <sys/systm.h>
     43 #include <sys/param.h>
     44 #include <sys/malloc.h>
     45 
     46 #include <sys/termios.h>
     47 
     48 #include <machine/intr.h>
     49 #include <machine/bus.h>
     50 
     51 #include <arm/ep93xx/epcomreg.h>
     52 #include <arm/ep93xx/epcomvar.h>
     53 #include <arm/ep93xx/ep93xxreg.h>
     54 #include <arm/ep93xx/ep93xxvar.h>
     55 #include <arm/ep93xx/epsocvar.h>
     56 
     57 #include <evbarm/tsarm/epcom_tsvar.h>
     58 
     59 static int	epcom_ts_match(struct device *, struct cfdata *, void *);
     60 static void	epcom_ts_attach(struct device *, struct device *, void *);
     61 
     62 CFATTACH_DECL(epcom_ts, sizeof(struct epcom_ts_softc),
     63     epcom_ts_match, epcom_ts_attach, NULL, NULL);
     64 
     65 static int
     66 epcom_ts_match(struct device *parent, struct cfdata *match, void *aux)
     67 {
     68 	if (strcmp(match->cf_name, "epcom") == 0)
     69 		return 1;
     70 	return 0;
     71 }
     72 
     73 static void
     74 epcom_ts_attach(parent, self, aux)
     75 	struct device *parent;
     76 	struct device *self;
     77 	void *aux;
     78 {
     79 	struct epcom_ts_softc *esc = (struct epcom_ts_softc *)self;
     80 	struct epcom_softc *sc = &esc->sc_epcom;
     81 	struct epsoc_attach_args *sa = aux;
     82 	u_int32_t pwrcnt;
     83 	bus_space_handle_t ioh;
     84 
     85 	esc->sc_iot = sa->sa_iot;
     86 	sc->sc_iot = sa->sa_iot;
     87 	sc->sc_hwbase = sa->sa_addr;
     88 
     89 	printf("\n");
     90 
     91 	bus_space_map(sa->sa_iot, sa->sa_addr, sa->sa_size, 0, &sc->sc_ioh);
     92 
     93 	bus_space_map(sa->sa_iot, EP93XX_APB_HWBASE + EP93XX_APB_SYSCON,
     94 		EP93XX_APB_SYSCON_SIZE, 0, &ioh);
     95 	pwrcnt = bus_space_read_4(sa->sa_iot, ioh, EP93XX_SYSCON_PwrCnt);
     96 	pwrcnt &= ~(PwrCnt_UARTBAUD);
     97 	bus_space_write_4(sa->sa_iot, ioh, EP93XX_SYSCON_PwrCnt, pwrcnt);
     98 	bus_space_unmap(sa->sa_iot, ioh, EP93XX_APB_SYSCON_SIZE);
     99 
    100 	epcom_attach_subr(sc);
    101 	ep93xx_intr_establish(sa->sa_intr, IPL_SERIAL, epcomintr, sc);
    102 }
    103