obio.c revision 1.3
1 /* $NetBSD: obio.c,v 1.3 2003/07/14 15:47:18 lukem Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Allegro Networks, Inc., Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed for the NetBSD Project by 18 * Allegro Networks, Inc., and Wasabi Systems, Inc. 19 * 4. The name of Allegro Networks, Inc. may not be used to endorse 20 * or promote products derived from this software without specific prior 21 * written permission. 22 * 5. The name of Wasabi Systems, Inc. may not be used to endorse 23 * or promote products derived from this software without specific prior 24 * written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY ALLEGRO NETWORKS, INC. AND 27 * WASABI SYSTEMS, INC. ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 28 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 29 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 30 * IN NO EVENT SHALL EITHER ALLEGRO NETWORKS, INC. OR WASABI SYSTEMS, INC. 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * gt.c -- GT system controller driver 42 */ 43 44 #include <sys/cdefs.h> 45 __KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.3 2003/07/14 15:47:18 lukem Exp $"); 46 47 #include "opt_marvell.h" 48 49 #include <sys/param.h> 50 #include <sys/types.h> 51 #include <sys/cdefs.h> 52 #include <sys/extent.h> 53 #include <sys/device.h> 54 #include <sys/kernel.h> 55 #include <sys/malloc.h> 56 57 #define _BUS_SPACE_PRIVATE 58 #define _BUS_DMA_PRIVATE 59 #include <machine/bus.h> 60 61 #include <powerpc/spr.h> 62 #include <powerpc/oea/hid.h> 63 64 #include <dev/pci/pcivar.h> 65 #include <dev/marvell/gtreg.h> 66 #include <dev/marvell/gtvar.h> 67 68 #ifdef DEBUG 69 #include <sys/systm.h> /* for Debugger() */ 70 #endif 71 72 static int obio_cfprint(void *, const char *); 73 static int obio_cfmatch(struct device *, struct cfdata *, void *); 74 static int obio_cfsearch(struct device *, struct cfdata *, void *); 75 static void obio_cfattach(struct device *, struct device *, void *); 76 77 struct obio_softc { 78 struct device sc_dev; 79 bus_space_tag_t sc_memt; 80 bus_space_tag_t sc_gt_memt; 81 bus_space_tag_t sc_gt_memh; 82 }; 83 84 CFATTACH_DECL(obio, sizeof(struct obio_softc), 85 obio_cfmatch, obio_cfattach, NULL, NULL); 86 87 extern struct cfdriver obio_cd; 88 89 static const struct { 90 bus_addr_t low_decode; 91 bus_addr_t high_decode; 92 } obio_info[5] = { 93 { GT_CS0_Low_Decode, GT_CS0_High_Decode, }, 94 { GT_CS1_Low_Decode, GT_CS1_High_Decode, }, 95 { GT_CS2_Low_Decode, GT_CS2_High_Decode, }, 96 { GT_CS3_Low_Decode, GT_CS3_High_Decode, }, 97 { GT_BootCS_Low_Decode, GT_BootCS_High_Decode, }, 98 }; 99 100 extern bus_space_tag_t obio_bs_tags[5]; 101 102 int 103 obio_cfprint(void *aux, const char *pnp) 104 { 105 struct obio_attach_args *oa = aux; 106 107 if (pnp) { 108 aprint_normal("%s at %s", oa->oa_name, pnp); 109 } 110 aprint_normal(" offset %#x size %#x", oa->oa_offset, oa->oa_size); 111 if (oa->oa_irq != OBIO_UNK_IRQ) 112 aprint_normal(" irq %d", oa->oa_irq); 113 114 return (UNCONF); 115 } 116 117 118 int 119 obio_cfsearch(struct device *parent, struct cfdata *cf, void *aux) 120 { 121 struct obio_softc *sc = (struct obio_softc *) parent; 122 struct obio_attach_args oa; 123 124 oa.oa_name = cf->cf_name; 125 oa.oa_memt = sc->sc_memt; 126 oa.oa_offset = cf->obiocf_offset; 127 oa.oa_size = cf->obiocf_size; 128 oa.oa_irq = cf->obiocf_irq; 129 130 if (config_match(parent, cf, &oa) > 0) 131 config_attach(parent, cf, &oa, obio_cfprint); 132 133 return (0); 134 } 135 136 int 137 obio_cfmatch(struct device *parent, struct cfdata *cf, void *aux) 138 { 139 struct gt_softc * const gt = (struct gt_softc *)parent; 140 struct gt_attach_args * const ga = aux; 141 142 return GT_OBIOOK(gt, ga, &obio_cd); 143 } 144 145 void 146 obio_cfattach(struct device *parent, struct device *self, void *aux) 147 { 148 struct gt_softc * const gt = (struct gt_softc *)parent; 149 struct obio_softc *sc = (struct obio_softc *)self; 150 struct gt_attach_args *ga = aux; 151 uint32_t datal, datah; 152 153 GT_OBIOFOUND(gt, ga); 154 155 datal = bus_space_read_4(ga->ga_memt, ga->ga_memh, 156 obio_info[ga->ga_unit].low_decode); 157 datah = bus_space_read_4(ga->ga_memt, ga->ga_memh, 158 obio_info[ga->ga_unit].high_decode); 159 160 if (GT_LowAddr_GET(datal) > GT_HighAddr_GET(datah)) { 161 aprint_normal(": disabled\n"); 162 return; 163 } 164 165 sc->sc_memt = obio_bs_tags[ga->ga_unit]; 166 if (sc->sc_memt == NULL) { 167 aprint_normal(": unused\n"); 168 return; 169 } 170 171 aprint_normal(": addr %#x-%#x, %s-endian\n", 172 GT_LowAddr_GET(datal), GT_HighAddr_GET(datah), 173 GT_PCISwap_GET(datal) == 1 ? "little" : "big"); 174 175 config_search(obio_cfsearch, &sc->sc_dev, NULL); 176 } 177 178
Indexes created Wed Sep 24 05:09:52 GMT 2025