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      1 /*	$NetBSD: ipaq_saip.c,v 1.26 2023/12/20 14:50:02 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001, The NetBSD Foundation, Inc.  All rights reserved.
      5  *
      6  * This code is derived from software contributed to The NetBSD Foundation
      7  * by Ichiro FUKUHARA (ichiro (at) ichiro.org).
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28  * POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include <sys/cdefs.h>
     32 __KERNEL_RCSID(0, "$NetBSD: ipaq_saip.c,v 1.26 2023/12/20 14:50:02 thorpej Exp $");
     33 
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/types.h>
     37 #include <sys/conf.h>
     38 #include <sys/device.h>
     39 #include <sys/kernel.h>
     40 #include <sys/uio.h>
     41 #include <sys/bus.h>
     42 
     43 #include <machine/cpu.h>
     44 
     45 #include <arm/sa11x0/sa11x0_var.h>
     46 #include <arm/sa11x0/sa11x0_reg.h>
     47 #include <arm/sa11x0/sa11x0_dmacreg.h>
     48 #include <arm/sa11x0/sa11x0_ppcreg.h>
     49 #include <arm/sa11x0/sa11x0_gpioreg.h>
     50 #include <arm/sa11x0/sa11x0_sspreg.h>
     51 
     52 #include <hpcarm/dev/ipaq_saipvar.h>
     53 #include <hpcarm/dev/ipaq_gpioreg.h>
     54 
     55 /* prototypes */
     56 static int	ipaq_match(device_t, cfdata_t, void *);
     57 static void	ipaq_attach(device_t, device_t, void *);
     58 static int 	ipaq_search(device_t, cfdata_t, const int *, void *);
     59 static int	ipaq_print(void *, const char *);
     60 
     61 /* attach structures */
     62 CFATTACH_DECL_NEW(ipaqbus, sizeof(struct ipaq_softc),
     63     ipaq_match, ipaq_attach, NULL, NULL);
     64 
     65 static int
     66 ipaq_print(void *aux, const char *name)
     67 {
     68         return (UNCONF);
     69 }
     70 
     71 int
     72 ipaq_match(device_t parent, cfdata_t match, void *aux)
     73 {
     74 	return (1);
     75 }
     76 
     77 void
     78 ipaq_attach(device_t parent, device_t self, void *aux)
     79 {
     80 	struct ipaq_softc *sc = device_private(self);
     81 	struct sa11x0_softc *psc = device_private(parent);
     82 
     83 	aprint_normal("\n");
     84 
     85 	sc->sc_dev = self;
     86 	sc->sc_iot = psc->sc_iot;
     87 	sc->sc_ioh = psc->sc_ioh;
     88 	sc->sc_gpioh = psc->sc_gpioh;
     89 
     90 	/* Map the Extended GPIO registers */
     91 	if (bus_space_map(sc->sc_iot, SAEGPIO_BASE, 1, 0, &sc->sc_egpioh))
     92 		panic("%s: unable to map Extended GPIO registers",
     93 			device_xname(self));
     94 
     95 	sc->ipaq_egpio = EGPIO_INIT;
     96         bus_space_write_2(sc->sc_iot, sc->sc_egpioh, 0, sc->ipaq_egpio);
     97 
     98 	/* Map the SSP registers */
     99 	if (bus_space_map(sc->sc_iot, SASSP_BASE, SASSP_NPORTS, 0, &sc->sc_ssph))
    100 		panic("%s: unable to map SSP registers",
    101 			device_xname(self));
    102 
    103 	sc->sc_ppch = psc->sc_ppch;
    104 	sc->sc_dmach = psc->sc_dmach;
    105 
    106 	/*
    107 	 *  Attach each devices
    108 	 */
    109 	config_search(self, NULL,
    110 	    CFARGS(.search = ipaq_search));
    111 }
    112 
    113 int
    114 ipaq_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
    115 {
    116 	if (config_probe(parent, cf, NULL))
    117 		config_attach(parent, cf, NULL, ipaq_print, CFARGS_NONE);
    118 
    119         return 0;
    120 }
    121