1 /* $NetBSD: ixp425_ixme.c,v 1.3 2011/07/01 20:32:51 dyoung 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 1.3 2011/07/01 20:32:51 dyoung 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 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 } 142