sys/arch/evbarm/g42xxeb/gb225_slhci.c

   1 /*      $NetBSD: gb225_slhci.c,v 1.3 2006/02/23 05:37:47 thorpej Exp $ */
   2
   3 /*
   4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Tetsuya Isaki.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * SL811HS USB host controller for GB-225 Option board of G4250EBX.
  34  */
  35
  36 #include <sys/param.h>
  37 #include <sys/systm.h>
  38 #include <sys/device.h>
  39
  40 #include <machine/bus.h>
  41 #include <machine/cpu.h>
  42
  43 #include <dev/usb/usb.h>
  44 #include <dev/usb/usbdi.h>
  45 #include <dev/usb/usbdivar.h>
  46
  47 #include <dev/ic/sl811hsreg.h>
  48 #include <dev/ic/sl811hsvar.h>
  49
  50 #include <arch/arm/xscale/pxa2x0reg.h>
  51 #include <arch/arm/xscale/pxa2x0var.h>
  52 #include <arch/evbarm/g42xxeb/g42xxeb_reg.h>
  53 #include <arch/evbarm/g42xxeb/g42xxeb_var.h>
  54 #include <arch/evbarm/g42xxeb/gb225reg.h>
  55 #include <arch/evbarm/g42xxeb/gb225var.h>
  56
  57 struct slhci_opio_softc {
  58         struct slhci_softc sc_sc;
  59
  60         void *sc_ih;
  61 };
  62
  63 static int  slhci_opio_match(struct device *, struct cfdata *, void *);
  64 static void slhci_opio_attach(struct device *, struct device *, void *);
  65 static void slhci_opio_enable_power(void *, int);
  66 static void slhci_opio_enable_intr(void *, int);
  67 static int  slhci_opio_intr(void *);
  68
  69 CFATTACH_DECL(slhci_opio, sizeof(struct slhci_opio_softc),
  70     slhci_opio_match, slhci_opio_attach, NULL, NULL);
  71
  72 #define PORTSIZE        (SL11_PORTSIZE*4)
  73
  74 static int
  75 slhci_opio_match(struct device *parent, struct cfdata *cf, void *aux)
  76 {
  77         struct obio_attach_args *oba = aux;
  78         bus_space_tag_t iot = &pxa2x0_a4x_bs_tag; /* Use special BS funcs */
  79         bus_space_handle_t ioh;
  80         struct obio_softc *bsc = (struct obio_softc *)device_parent(parent);
  81         struct pxa2x0_softc *psc;
  82         int type;
  83         uint32_t reg;
  84
  85         struct slhci_softc sc;
  86
  87         obio_peripheral_reset(bsc, 2, 0);
  88         psc = (struct pxa2x0_softc *)device_parent(&bsc->sc_dev);
  89
  90         reg = bus_space_read_4(psc->saip.sc_iot, psc->sc_memctl_ioh,
  91             MEMCTL_MSC2);
  92 #if 0
  93         bus_space_write_4(psc->saip.sc_iot, psc->sc_memctl_ioh, MEMCTL_MSC2,xxx)
  94 #endif
  95
  96
  97         oba->oba_iot = iot;
  98         if (oba->oba_addr == OBIOCF_ADDR_DEFAULT)
  99                 oba->oba_addr = PXA2X0_CS5_START;
 100         if (oba->oba_intr == OBIOCF_INTR_DEFAULT)
 101                 oba->oba_intr = G4250EBX_INT_EXT2;
 102
 103         if (bus_space_map(iot, oba->oba_addr, PORTSIZE, 0, &ioh))
 104                 return 0;
 105
 106         /* construct fake softc to call sl811hs */
 107         sc.sc_iot = iot;
 108         sc.sc_ioh = ioh;
 109         type = sl811hs_find(&sc);
 110
 111         bus_space_unmap(iot, ioh, PORTSIZE);
 112
 113         return type >= 0;
 114 }
 115
 116 static void
 117 slhci_opio_attach(struct device *parent, struct device *self, void *aux)
 118 {
 119         struct slhci_opio_softc *sc = (struct slhci_opio_softc *)self;
 120         struct obio_attach_args *oba = aux;
 121         struct opio_softc *psc =
 122             (struct opio_softc *)device_parent(self);
 123         struct obio_softc *bsc =
 124             (struct obio_softc *)device_parent(&psc->sc_dev);
 125         bus_space_tag_t iot = oba->oba_iot;
 126         bus_space_handle_t ioh;
 127
 128         printf("\n");
 129
 130         /* Map I/O space */
 131         if (bus_space_map(iot, oba->oba_addr, PORTSIZE, 0, &ioh)) {
 132                 printf("%s: can't map I/O space\n",
 133                         sc->sc_sc.sc_bus.bdev.dv_xname);
 134                 return;
 135         }
 136
 137         /* Initialize sc */
 138         sc->sc_sc.sc_iot = iot;
 139         sc->sc_sc.sc_ioh = ioh;
 140         sc->sc_sc.sc_dmat = &pxa2x0_bus_dma_tag;        /* XXX */
 141         sc->sc_sc.sc_enable_power = slhci_opio_enable_power;
 142         sc->sc_sc.sc_enable_intr  = slhci_opio_enable_intr;
 143         sc->sc_sc.sc_arg = sc;
 144
 145         /* Establish the interrupt handler */
 146         sc->sc_ih = obio_intr_establish(bsc, oba->oba_intr, IPL_BIO,
 147             IST_LEVEL_HIGH, slhci_opio_intr, sc);
 148         if( sc->sc_ih == NULL) {
 149                 printf("%s: can't establish interrupt\n",
 150                         sc->sc_sc.sc_bus.bdev.dv_xname);
 151                 return;
 152         }
 153
 154 #if 0
 155         /* Reset controller */
 156         obio_peripheral_reset(bsc, 2, 1);
 157         delay(100);
 158         obio_peripheral_reset(bsc, 2, 0);
 159         delay(40000);
 160 #endif
 161
 162         bus_space_write_1(iot, ioh, SL11_IDX_ADDR, SL11_CTRL);
 163         bus_space_write_1(iot, ioh, SL11_IDX_DATA, 0x01);
 164
 165         /* Attach SL811HS/T */
 166         if (slhci_attach(&sc->sc_sc, self))
 167                 return;
 168 }
 169
 170 static void
 171 slhci_opio_enable_power(void *arg, int mode)
 172 {
 173 #if 0
 174         struct slhci_opio_softc *sc = arg;
 175         bus_space_tag_t iot = sc->sc_sc.sc_iot;
 176         u_int8_t r;
 177
 178         r = bus_space_read_1(iot, sc->sc_nch, NEREID_CTRL);
 179         if (mode == POWER_ON)
 180                 bus_space_write_1(iot, sc->sc_nch, NEREID_CTRL,
 181                         r |  NEREID_CTRL_POWER);
 182         else
 183                 bus_space_write_1(iot, sc->sc_nch, NEREID_CTRL,
 184                         r & ~NEREID_CTRL_POWER);
 185 #endif
 186 }
 187
 188 static void
 189 slhci_opio_enable_intr(void *arg, int mode)
 190 {
 191         struct slhci_opio_softc *sc = arg;
 192         struct obio_softc *bsc;
 193
 194         bsc = (struct obio_softc *)device_parent(
 195             device_parent(&sc->sc_sc.sc_bus.bdev));
 196
 197         if (mode == INTR_ON)
 198                 obio_intr_unmask(bsc, sc->sc_ih);
 199         else
 200                 obio_intr_mask(bsc, sc->sc_ih);
 201 }
 202
 203 static int
 204 slhci_opio_intr(void *arg)
 205 {
 206         struct slhci_opio_softc *sc = arg;
 207
 208         return slhci_intr(&sc->sc_sc);
 209 }