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plumiobus.c revision 1.16.2.6
      1  1.16.2.6  thorpej /*	$NetBSD: plumiobus.c,v 1.16.2.6 2021/04/05 00:48:49 thorpej Exp $ */
      2       1.1      uch 
      3       1.4      uch /*-
      4       1.4      uch  * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
      5       1.1      uch  * All rights reserved.
      6       1.1      uch  *
      7       1.4      uch  * This code is derived from software contributed to The NetBSD Foundation
      8       1.4      uch  * by UCHIYAMA Yasushi.
      9       1.4      uch  *
     10       1.1      uch  * Redistribution and use in source and binary forms, with or without
     11       1.1      uch  * modification, are permitted provided that the following conditions
     12       1.1      uch  * are met:
     13       1.1      uch  * 1. Redistributions of source code must retain the above copyright
     14       1.1      uch  *    notice, this list of conditions and the following disclaimer.
     15       1.4      uch  * 2. Redistributions in binary form must reproduce the above copyright
     16       1.4      uch  *    notice, this list of conditions and the following disclaimer in the
     17       1.4      uch  *    documentation and/or other materials provided with the distribution.
     18       1.1      uch  *
     19       1.4      uch  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20       1.4      uch  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21       1.4      uch  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22       1.4      uch  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23       1.4      uch  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24       1.4      uch  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25       1.4      uch  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26       1.4      uch  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27       1.4      uch  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28       1.4      uch  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29       1.4      uch  * POSSIBILITY OF SUCH DAMAGE.
     30       1.1      uch  */
     31       1.9    lukem 
     32       1.9    lukem #include <sys/cdefs.h>
     33  1.16.2.6  thorpej __KERNEL_RCSID(0, "$NetBSD: plumiobus.c,v 1.16.2.6 2021/04/05 00:48:49 thorpej Exp $");
     34       1.4      uch 
     35       1.3      uch #define PLUMIOBUSDEBUG
     36       1.1      uch 
     37       1.1      uch #include <sys/param.h>
     38       1.1      uch #include <sys/systm.h>
     39       1.1      uch #include <sys/device.h>
     40      1.16  thorpej #include <sys/kmem.h>
     41       1.1      uch 
     42       1.1      uch #include <machine/bus.h>
     43       1.1      uch #include <machine/intr.h>
     44       1.1      uch 
     45       1.1      uch #include <hpcmips/tx/tx39var.h>
     46       1.1      uch #include <hpcmips/dev/plumvar.h>
     47       1.1      uch #include <hpcmips/dev/plumicuvar.h>
     48       1.1      uch #include <hpcmips/dev/plumpowervar.h>
     49       1.1      uch #include <hpcmips/dev/plumiobusreg.h>
     50       1.1      uch #include <hpcmips/dev/plumiobusvar.h>
     51       1.1      uch 
     52       1.1      uch #include "locators.h"
     53       1.1      uch 
     54       1.3      uch #ifdef PLUMIOBUSDEBUG
     55       1.3      uch int	plumiobus_debug = 0;
     56       1.3      uch #define	DPRINTF(arg) if (plumiobus_debug) printf arg;
     57       1.3      uch #define	DPRINTFN(n, arg) if (plumiobus_debug > (n)) printf arg;
     58       1.3      uch #else
     59       1.3      uch #define	DPRINTF(arg)
     60       1.3      uch #define DPRINTFN(n, arg)
     61       1.3      uch #endif
     62       1.3      uch 
     63      1.14      chs int plumiobus_match(device_t, cfdata_t, void *);
     64      1.14      chs void plumiobus_attach(device_t, device_t, void *);
     65       1.4      uch int plumiobus_print(void *, const char *);
     66      1.14      chs int plumiobus_search(device_t, cfdata_t , const int *, void *);
     67       1.1      uch 
     68       1.1      uch struct plumisa_resource {
     69       1.1      uch 	int		pr_irq;
     70       1.1      uch 	bus_space_tag_t	pr_iot;
     71       1.1      uch 	int		pr_enabled;
     72       1.1      uch };
     73       1.1      uch 
     74       1.1      uch struct plumiobus_softc {
     75       1.1      uch 	plum_chipset_tag_t	sc_pc;
     76       1.1      uch 	bus_space_tag_t		sc_regt;
     77       1.1      uch 	bus_space_handle_t	sc_regh;
     78       1.1      uch 	bus_space_tag_t		sc_iot;
     79       1.1      uch 	bus_space_handle_t	sc_ioh;
     80       1.1      uch 	struct plumisa_resource	sc_isa[PLUM_IOBUS_IO5CSMAX];
     81       1.1      uch };
     82       1.1      uch 
     83      1.14      chs CFATTACH_DECL_NEW(plumiobus, sizeof(struct plumiobus_softc),
     84       1.8  thorpej     plumiobus_match, plumiobus_attach, NULL, NULL);
     85       1.1      uch 
     86       1.4      uch bus_space_tag_t __plumiobus_subregion(bus_space_tag_t, bus_addr_t,
     87       1.4      uch     bus_size_t);
     88       1.3      uch #ifdef PLUMIOBUSDEBUG
     89       1.4      uch void plumiobus_dump(struct plumiobus_softc *);
     90       1.3      uch #endif
     91       1.1      uch 
     92       1.1      uch int
     93      1.14      chs plumiobus_match(device_t parent, cfdata_t cf, void *aux)
     94       1.1      uch {
     95       1.4      uch 
     96       1.3      uch 	return (1);
     97       1.1      uch }
     98       1.1      uch 
     99       1.1      uch void
    100      1.14      chs plumiobus_attach(device_t parent, device_t self, void *aux)
    101       1.1      uch {
    102       1.1      uch 	struct plum_attach_args *pa = aux;
    103      1.14      chs 	struct plumiobus_softc *sc = device_private(self);
    104       1.1      uch 	struct plumisa_resource *pr;
    105       1.1      uch 
    106       1.1      uch 	sc->sc_pc	= pa->pa_pc;
    107       1.1      uch 	sc->sc_regt	= pa->pa_regt;
    108       1.1      uch 	sc->sc_iot	= pa->pa_iot;
    109       1.1      uch 
    110       1.1      uch 	if (bus_space_map(sc->sc_regt, PLUM_IOBUS_REGBASE,
    111       1.4      uch 	    PLUM_IOBUS_REGSIZE, 0, &sc->sc_regh)) {
    112       1.1      uch 		printf(": register map failed.\n");
    113       1.1      uch 		return;
    114       1.1      uch 	}
    115       1.1      uch 	printf("\n");
    116       1.2      uch 	plum_power_establish(sc->sc_pc, PLUM_PWR_IO5);
    117       1.2      uch 
    118       1.1      uch 	/* Address space <-> IRQ mapping */
    119       1.1      uch 	pr = &sc->sc_isa[IO5CS0];
    120       1.1      uch 	pr->pr_irq = PLUM_INT_EXT5IO0;
    121       1.1      uch 	pr->pr_iot = __plumiobus_subregion(
    122       1.1      uch 		sc->sc_iot,
    123       1.1      uch 		PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS0BASE,
    124       1.1      uch 		PLUM_IOBUS_IO5SIZE);
    125       1.1      uch 
    126       1.1      uch 	pr = &sc->sc_isa[IO5CS1];
    127       1.1      uch 	pr->pr_irq = PLUM_INT_EXT5IO1;
    128       1.1      uch 	pr->pr_iot = __plumiobus_subregion(
    129       1.1      uch 		sc->sc_iot,
    130       1.1      uch 		PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS1BASE,
    131       1.1      uch 		PLUM_IOBUS_IO5SIZE);
    132       1.1      uch 
    133       1.1      uch 	pr = &sc->sc_isa[IO5CS2];
    134       1.1      uch 	pr->pr_irq = PLUM_INT_EXT5IO2;
    135       1.1      uch 	pr->pr_iot = __plumiobus_subregion(
    136       1.1      uch 		sc->sc_iot,
    137       1.1      uch 		PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS2BASE,
    138       1.1      uch 		PLUM_IOBUS_IO5SIZE);
    139       1.1      uch 
    140       1.1      uch 	pr = &sc->sc_isa[IO5CS3];
    141       1.1      uch 	pr->pr_irq = PLUM_INT_EXT5IO3;
    142       1.1      uch 	pr->pr_iot = __plumiobus_subregion(
    143       1.1      uch 		sc->sc_iot,
    144       1.1      uch 		PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS3BASE,
    145       1.1      uch 		PLUM_IOBUS_IO5SIZE);
    146       1.1      uch 
    147       1.1      uch 	pr = &sc->sc_isa[IO5CS4];
    148       1.1      uch 	pr->pr_irq = PLUM_INT_EXT3IO0; /* XXX */
    149       1.1      uch 	pr->pr_iot = __plumiobus_subregion(
    150       1.1      uch 		sc->sc_iot,
    151       1.1      uch 		PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS4BASE,
    152       1.1      uch 		PLUM_IOBUS_IO5SIZE);
    153       1.1      uch 
    154       1.1      uch 
    155       1.1      uch 	pr = &sc->sc_isa[IO5NCS];
    156       1.1      uch 	pr->pr_irq = PLUM_INT_EXT3IO1;
    157       1.1      uch 	pr->pr_iot = __plumiobus_subregion(
    158       1.1      uch 		sc->sc_iot,
    159       1.1      uch 		PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS5BASE,
    160       1.1      uch 		PLUM_IOBUS_IO5SIZE);
    161       1.1      uch 
    162       1.3      uch #ifdef PLUMIOBUSDEBUG
    163       1.1      uch 	plumiobus_dump(sc);
    164       1.3      uch #endif
    165       1.2      uch 
    166  1.16.2.2  thorpej 	config_search(self, NULL,
    167  1.16.2.5  thorpej 	    CFARG_SEARCH, plumiobus_search,
    168  1.16.2.1  thorpej 	    CFARG_EOL);
    169       1.1      uch }
    170       1.1      uch 
    171       1.1      uch /* XXX something kludge */
    172       1.1      uch bus_space_tag_t
    173       1.4      uch __plumiobus_subregion(bus_space_tag_t t, bus_addr_t ofs, bus_size_t size)
    174       1.1      uch {
    175       1.1      uch 	struct hpcmips_bus_space *hbs;
    176       1.1      uch 
    177      1.16  thorpej 	hbs = kmem_alloc(sizeof(*hbs), KM_SLEEP);
    178       1.1      uch 	*hbs = *t;
    179       1.1      uch 	hbs->t_base += ofs;
    180       1.1      uch 	hbs->t_size = size;
    181       1.1      uch 
    182       1.3      uch 	return (hbs);
    183       1.1      uch }
    184       1.1      uch 
    185       1.1      uch int
    186      1.14      chs plumiobus_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
    187       1.1      uch {
    188      1.14      chs 	struct plumiobus_softc *sc = device_private(parent);
    189       1.1      uch 	struct plumiobus_attach_args pba;
    190       1.1      uch 	int slot;
    191       1.1      uch 
    192       1.1      uch 	/* Disallow wildcarded IO5CS slot */
    193       1.1      uch 	if (cf->cf_loc[PLUMIOBUSIFCF_SLOT] == PLUMIOBUSIFCF_SLOT_DEFAULT) {
    194       1.1      uch 		printf("plumiobus_search: wildcarded slot, skipping\n");
    195       1.3      uch 		return (0);
    196       1.1      uch 	}
    197       1.1      uch 	slot = pba.pba_slot = cf->cf_loc[PLUMIOBUSIFCF_SLOT];
    198       1.1      uch 
    199       1.1      uch 	pba.pba_pc	= sc->sc_pc;
    200       1.1      uch 	pba.pba_iot	= sc->sc_isa[slot].pr_iot;
    201       1.1      uch 	pba.pba_irq	= sc->sc_isa[slot].pr_irq;
    202       1.1      uch 	pba.pba_busname	= "plumisab";
    203       1.1      uch 
    204       1.1      uch 	if (!(sc->sc_isa[slot].pr_enabled) && /* not attached slot */
    205  1.16.2.6  thorpej 	    config_probe(parent, cf, &pba)) {
    206  1.16.2.4  thorpej 		config_attach(parent, cf, &pba, plumiobus_print, CFARG_EOL);
    207       1.1      uch 		sc->sc_isa[slot].pr_enabled = 1;
    208       1.1      uch 	}
    209       1.1      uch 
    210       1.3      uch 	return (0);
    211       1.1      uch }
    212       1.1      uch 
    213       1.1      uch int
    214       1.4      uch plumiobus_print(void *aux, const char *pnp)
    215       1.1      uch {
    216       1.4      uch 
    217       1.3      uch 	return (pnp ? QUIET : UNCONF);
    218       1.1      uch }
    219       1.1      uch 
    220       1.3      uch #ifdef PLUMIOBUSDEBUG
    221       1.1      uch void
    222       1.4      uch plumiobus_dump(struct plumiobus_softc *sc)
    223       1.1      uch {
    224       1.1      uch 	bus_space_tag_t regt = sc->sc_regt;
    225       1.1      uch 	bus_space_handle_t regh = sc->sc_regh;
    226       1.1      uch 	plumreg_t reg;
    227       1.1      uch 	int i, wait;
    228       1.1      uch 
    229       1.1      uch 	reg = plum_conf_read(regt, regh, PLUM_IOBUS_IOXBSZ_REG);
    230       1.1      uch 	printf("8bit port:");
    231       1.1      uch 	for (i = 0; i < 6; i++) {
    232       1.1      uch 		if (reg & (1 << i)) {
    233       1.1      uch 			printf(" IO5CS%d", i);
    234       1.1      uch 		}
    235       1.1      uch 	}
    236       1.1      uch 	printf("\n");
    237       1.1      uch 
    238       1.1      uch 	reg = PLUM_IOBUS_IOXCCNT_MASK &
    239       1.4      uch 	    plum_conf_read(regt, regh, PLUM_IOBUS_IOXCCNT_REG);
    240       1.1      uch 	printf(" # of wait to become from the access begining: %d clock\n",
    241       1.4      uch 	    reg + 1);
    242       1.1      uch 	reg = plum_conf_read(regt, regh, PLUM_IOBUS_IOXACNT_REG);
    243       1.1      uch 	printf(" # of wait in access clock: ");
    244       1.1      uch 	for (i = 0; i < 5; i++) {
    245       1.1      uch 		wait = (reg >> (i * PLUM_IOBUS_IOXACNT_SHIFT))
    246       1.4      uch 		    & PLUM_IOBUS_IOXACNT_MASK;
    247       1.1      uch 		printf("[CS%d:%d] ", i, wait + 1);
    248       1.1      uch 	}
    249       1.1      uch 	printf("\n");
    250       1.1      uch 
    251       1.1      uch 	reg = PLUM_IOBUS_IOXSCNT_MASK &
    252       1.4      uch 	    plum_conf_read(regt, regh, PLUM_IOBUS_IOXSCNT_REG);
    253       1.1      uch 	printf(" # of wait during access by I/O bus : %d clock\n", reg + 1);
    254       1.1      uch 
    255       1.1      uch 	reg = plum_conf_read(regt, regh, PLUM_IOBUS_IDEMODE_REG);
    256       1.1      uch 	if (reg & PLUM_IOBUS_IDEMODE) {
    257       1.1      uch 		printf("IO5CS3,4 IDE mode\n");
    258       1.1      uch 	}
    259       1.1      uch }
    260       1.3      uch #endif /* PLUMIOBUSDEBUG */
    261