obio.c revision 1.10.20.1
1 /* $NetBSD: obio.c,v 1.10.20.1 2009/05/16 10:41:27 yamt 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 1.10.20.1 2009/05/16 10:41:27 yamt Exp $"); 46 47 #include "opt_marvell.h" 48 49 #include <sys/param.h> 50 #include <sys/types.h> 51 #include <sys/extent.h> 52 #include <sys/device.h> 53 #include <sys/kernel.h> 54 #include <sys/malloc.h> 55 56 #define _BUS_SPACE_PRIVATE 57 #define _BUS_DMA_PRIVATE 58 #include <sys/bus.h> 59 60 #include <powerpc/spr.h> 61 #include <powerpc/oea/hid.h> 62 63 #include <dev/pci/pcivar.h> 64 #include <dev/marvell/gtreg.h> 65 #include <dev/marvell/gtvar.h> 66 67 #ifdef DEBUG 68 #include <sys/systm.h> /* for Debugger() */ 69 #endif 70 71 #include "locators.h" 72 73 static int obio_cfprint(void *, const char *); 74 static int obio_cfmatch(device_t, cfdata_t, void *); 75 static int obio_cfsearch(device_t, cfdata_t, 76 const int *, void *); 77 static void obio_cfattach(device_t, device_t, void *); 78 79 struct obio_softc { 80 struct device sc_dev; 81 bus_space_tag_t sc_memt; 82 bus_space_tag_t sc_gt_memt; 83 bus_space_tag_t sc_gt_memh; 84 }; 85 86 CFATTACH_DECL(obio, sizeof(struct obio_softc), 87 obio_cfmatch, obio_cfattach, NULL, NULL); 88 89 extern struct cfdriver obio_cd; 90 91 static const struct { 92 bus_addr_t low_decode; 93 bus_addr_t high_decode; 94 } obio_info[5] = { 95 { GT_CS0_Low_Decode, GT_CS0_High_Decode, }, 96 { GT_CS1_Low_Decode, GT_CS1_High_Decode, }, 97 { GT_CS2_Low_Decode, GT_CS2_High_Decode, }, 98 { GT_CS3_Low_Decode, GT_CS3_High_Decode, }, 99 { GT_BootCS_Low_Decode, GT_BootCS_High_Decode, }, 100 }; 101 102 extern bus_space_tag_t obio_bs_tags[5]; 103 104 int 105 obio_cfprint(void *aux, const char *pnp) 106 { 107 struct obio_attach_args *oa = aux; 108 109 if (pnp) { 110 aprint_normal("%s at %s", oa->oa_name, pnp); 111 } 112 aprint_normal(" offset %#x size %#x", oa->oa_offset, oa->oa_size); 113 if (oa->oa_irq != OBIOCF_IRQ_DEFAULT) 114 aprint_normal(" irq %d", oa->oa_irq); 115 116 return (UNCONF); 117 } 118 119 120 int 121 obio_cfsearch(device_t parent, cfdata_t cf, 122 const int *ldesc, void *aux) 123 { 124 struct obio_softc *sc = (struct obio_softc *) parent; 125 struct obio_attach_args oa; 126 127 oa.oa_name = cf->cf_name; 128 oa.oa_memt = sc->sc_memt; 129 oa.oa_offset = cf->cf_loc[OBIOCF_OFFSET]; 130 oa.oa_size = cf->cf_loc[OBIOCF_SIZE]; 131 oa.oa_irq = cf->cf_loc[OBIOCF_IRQ]; 132 133 if (config_match(parent, cf, &oa) > 0) 134 config_attach(parent, cf, &oa, obio_cfprint); 135 136 return (0); 137 } 138 139 int 140 obio_cfmatch(device_t parent, cfdata_t cf, void *aux) 141 { 142 struct gt_softc * const gt = (struct gt_softc *)parent; 143 struct gt_attach_args * const ga = aux; 144 145 return GT_OBIOOK(gt, ga, &obio_cd); 146 } 147 148 void 149 obio_cfattach(device_t parent, device_t self, void *aux) 150 { 151 struct gt_softc * const gt = device_private(parent); 152 struct obio_softc *sc = device_private(self); 153 struct gt_attach_args *ga = aux; 154 uint32_t datal, datah; 155 156 GT_OBIOFOUND(gt, ga); 157 158 datal = bus_space_read_4(ga->ga_memt, ga->ga_memh, 159 obio_info[ga->ga_unit].low_decode); 160 datah = bus_space_read_4(ga->ga_memt, ga->ga_memh, 161 obio_info[ga->ga_unit].high_decode); 162 163 if (GT_LowAddr_GET(datal) > GT_HighAddr_GET(datah)) { 164 aprint_normal(": disabled\n"); 165 return; 166 } 167 168 sc->sc_memt = obio_bs_tags[ga->ga_unit]; 169 if (sc->sc_memt == NULL) { 170 aprint_normal(": unused\n"); 171 return; 172 } 173 174 aprint_normal(": addr %#x-%#x, %s-endian\n", 175 GT_LowAddr_GET(datal), GT_HighAddr_GET(datah), 176 GT_PCISwap_GET(datal) == 1 ? "little" : "big"); 177 178 config_search_ia(obio_cfsearch, &sc->sc_dev, "obio", NULL); 179 } 180
Indexes created Tue Oct 21 05:10:09 GMT 2025