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ixp425_ixme.c revision 1.4 
      1 /*	$NetBSD: ixp425_ixme.c,v 1.4 2012/09/18 05:47:28 matt 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 1.4 2012/09/18 05:47:28 matt 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 <sys/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 
    103 	sc->sc_dt._dmamem_alloc = _bus_dmamem_alloc;
    104 	sc->sc_dt._dmamem_free = _bus_dmamem_free;
    105 	sc->sc_dt._dmamem_map = _bus_dmamem_map;
    106 	sc->sc_dt._dmamem_unmap = _bus_dmamem_unmap;
    107 	sc->sc_dt._dmamem_mmap = _bus_dmamem_mmap;
    108 
    109 	sc->sc_dt._dmatag_subregion = _bus_dmatag_subregion;
    110 	sc->sc_dt._dmatag_destroy = _bus_dmatag_destroy;
    111 
    112 	config_search_ia(ixme_search, self, "ixme", NULL);
    113 }
    114 
    115 static int
    116 ixme_search(struct device *parent, struct cfdata *cf, const int *ldesc,
    117     void *arg)
    118 {
    119 	struct ixme_softc *sc = (void *)parent;
    120 	struct ixme_attach_args ixa;
    121 
    122 	if (cf->cf_loc[IXMECF_NPE] < 0 || cf->cf_loc[IXMECF_NPE] > 2)
    123 		return (0);
    124 
    125 	ixa.ixa_iot = &ixp425_bs_tag;
    126 	ixa.ixa_dt = &sc->sc_dt;
    127 	ixa.ixa_npe = cf->cf_loc[IXMECF_NPE];
    128 
    129 	if (config_match(parent, cf, &ixa) > 0) {
    130 		config_attach(parent, cf, &ixa, ixme_print);
    131 		return (1);
    132 	}
    133 
    134 	return (0);
    135 }
    136 
    137 static int
    138 ixme_print(void *arg, const char *name)
    139 {
    140 	struct ixme_attach_args *ixa = arg;
    141 
    142 	aprint_normal(" NPE-%c", 'A' + ixa->ixa_npe);
    143 
    144 	return (UNCONF);
    145 }
    146