sys/arch/arm/xscale/ixp425_ixme.c

   1 /*      $NetBSD: ixp425_ixme.c,v 1.1 2006/12/10 10:01:49 scw Exp $      */
   2
   3 /*-
   4  * Copyright (c) 2006 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Steve C. Woodford.
   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 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: ixp425_ixme.c,v 1.1 2006/12/10 10:01:49 scw Exp $");
  34
  35 #include <sys/param.h>
  36 #include <sys/systm.h>
  37 #include <sys/kernel.h>
  38 #include <sys/device.h>
  39
  40 #define _ARM32_BUS_DMA_PRIVATE
  41 #include <machine/bus.h>
  42
  43 #include <arm/xscale/ixp425var.h>
  44 #include <arm/xscale/ixp425_qmgr.h>
  45 #include <arm/xscale/ixp425_ixmevar.h>
  46
  47 #include "locators.h"
  48
  49 static int      ixme_match(struct device *, struct cfdata *, void *);
  50 static void     ixme_attach(struct device *, struct device *, void *);
  51 static int      ixme_search(struct device *, struct cfdata *, const int *,
  52                     void *);
  53 static int      ixme_print(void *, const char *);
  54
  55 struct ixme_softc {
  56         struct device sc_dev;
  57         struct arm32_dma_range sc_dr;
  58         struct arm32_bus_dma_tag sc_dt;
  59         void *sc_qmgr;
  60 };
  61
  62 CFATTACH_DECL(ixme, sizeof(struct ixme_softc),
  63     ixme_match, ixme_attach, NULL, NULL);
  64
  65 static int
  66 ixme_match(struct device *parent, struct cfdata *self, void *arg)
  67 {
  68
  69         return (1);
  70 }
  71
  72 static void
  73 ixme_attach(struct device *parent, struct device *self, void *arg)
  74 {
  75         struct ixme_softc *sc = (void *)self;
  76         extern paddr_t physical_start, physical_end;
  77
  78         aprint_naive("\n");
  79         aprint_normal(": IXP4xx MicroEngine Support\n");
  80
  81         sc->sc_qmgr = ixpqmgr_init(&ixp425_bs_tag);
  82         if (sc->sc_qmgr == NULL) {
  83                 panic("%s: ixme_attach: Failed to init Queue Manager",
  84                     sc->sc_dev.dv_xname);
  85         }
  86
  87         sc->sc_dr.dr_sysbase = physical_start;
  88         sc->sc_dr.dr_busbase = 0;
  89         sc->sc_dr.dr_len = physical_end - physical_start;
  90         sc->sc_dt._ranges = &sc->sc_dr;
  91         sc->sc_dt._nranges = 1;
  92
  93         sc->sc_dt._dmamap_create = _bus_dmamap_create;
  94         sc->sc_dt._dmamap_destroy = _bus_dmamap_destroy;
  95         sc->sc_dt._dmamap_load = _bus_dmamap_load;
  96         sc->sc_dt._dmamap_load_mbuf = _bus_dmamap_load_mbuf;
  97         sc->sc_dt._dmamap_load_uio = _bus_dmamap_load_uio;
  98         sc->sc_dt._dmamap_load_raw = _bus_dmamap_load_raw;
  99         sc->sc_dt._dmamap_unload = _bus_dmamap_unload;
 100         sc->sc_dt._dmamap_sync_pre = _bus_dmamap_sync;
 101         sc->sc_dt._dmamap_sync_post = NULL;
 102         sc->sc_dt._dmamem_alloc = _bus_dmamem_alloc;
 103         sc->sc_dt._dmamem_free = _bus_dmamem_free;
 104         sc->sc_dt._dmamem_map = _bus_dmamem_map;
 105         sc->sc_dt._dmamem_unmap = _bus_dmamem_unmap;
 106         sc->sc_dt._dmamem_mmap = _bus_dmamem_mmap;
 107
 108         config_search_ia(ixme_search, self, "ixme", NULL);
 109 }
 110
 111 static int
 112 ixme_search(struct device *parent, struct cfdata *cf, const int *ldesc,
 113     void *arg)
 114 {
 115         struct ixme_softc *sc = (void *)parent;
 116         struct ixme_attach_args ixa;
 117
 118         if (cf->cf_loc[IXMECF_NPE] < 0 || cf->cf_loc[IXMECF_NPE] > 2)
 119                 return (0);
 120
 121         ixa.ixa_iot = &ixp425_bs_tag;
 122         ixa.ixa_dt = &sc->sc_dt;
 123         ixa.ixa_npe = cf->cf_loc[IXMECF_NPE];
 124
 125         if (config_match(parent, cf, &ixa) > 0) {
 126                 config_attach(parent, cf, &ixa, ixme_print);
 127                 return (1);
 128         }
 129
 130         return (0);
 131 }
 132
 133 static int
 134 ixme_print(void *arg, const char *name)
 135 {
 136         struct ixme_attach_args *ixa = arg;
 137
 138         aprint_normal(" NPE-%c", 'A' + ixa->ixa_npe);
 139
 140         return (UNCONF);
 141 }