ttwoga.c revision 1.14
1 /* $NetBSD: ttwoga.c,v 1.14 2011/06/14 15:34:22 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 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 "opt_dec_2100_a500.h" 33 #include "opt_dec_2100a_a500.h" 34 35 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 36 37 __KERNEL_RCSID(0, "$NetBSD: ttwoga.c,v 1.14 2011/06/14 15:34:22 matt Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/malloc.h> 43 #include <sys/device.h> 44 45 #include <machine/autoconf.h> 46 #include <machine/rpb.h> 47 48 #include <dev/isa/isareg.h> 49 #include <dev/isa/isavar.h> 50 51 #include <dev/eisa/eisavar.h> 52 53 #include <dev/pci/pcireg.h> 54 #include <dev/pci/pcivar.h> 55 56 #include <alpha/pci/ttwogareg.h> 57 #include <alpha/pci/ttwogavar.h> 58 59 #if defined(DEC_2100_A500) || defined(DEC_2100A_A500) 60 #include <alpha/pci/pci_2100_a500.h> 61 #endif 62 63 #include "locators.h" 64 65 int ttwogamatch(device_t, cfdata_t, void *); 66 void ttwogaattach(device_t, device_t, void *); 67 68 CFATTACH_DECL_NEW(ttwoga, 0, 69 ttwogamatch, ttwogaattach, NULL, NULL); 70 71 int ttwogaprint(void *, const char *); 72 73 int ttwopcimatch(device_t, cfdata_t, void *); 74 void ttwopciattach(device_t, device_t, void *); 75 76 CFATTACH_DECL_NEW(ttwopci, 0, 77 ttwopcimatch, ttwopciattach, NULL, NULL); 78 79 int ttwosableioprint(void *, const char *); 80 81 /* 82 * There can be only one, but it might have 2 primary PCI busses. 83 */ 84 int ttwogafound; 85 struct ttwoga_config ttwoga_configuration[2]; 86 87 /* CBUS address bias for Gamma systems. */ 88 bus_addr_t ttwoga_gamma_cbus_bias; 89 90 #define GIGABYTE (1024UL * 1024UL * 1024UL) 91 #define MEGABYTE (1024UL * 1024UL) 92 93 const struct ttwoga_sysmap ttwoga_sysmap[2] = { 94 /* Base System size Bus size */ 95 { T2_PCI0_SIO_BASE, 256UL * MEGABYTE, 8UL * MEGABYTE, 96 T2_PCI0_SMEM_BASE, 4UL * GIGABYTE, 128UL * MEGABYTE, 97 T2_PCI0_DMEM_BASE, 1UL * GIGABYTE, 1UL * GIGABYTE, 98 T2_PCI0_CONF_BASE, 99 }, 100 { T2_PCI1_SIO_BASE, 256UL * MEGABYTE, 8UL * MEGABYTE, 101 T2_PCI1_SMEM_BASE, 2UL * GIGABYTE, 64UL * MEGABYTE, 102 T2_PCI1_DMEM_BASE, 2UL * GIGABYTE, 2UL * GIGABYTE, 103 T2_PCI1_CONF_BASE, 104 }, 105 }; 106 107 #undef GIGABYTE 108 #undef MEGABYTE 109 110 int 111 ttwogamatch(device_t parent, cfdata_t match, void *aux) 112 { 113 struct mainbus_attach_args *ma = aux; 114 115 /* Make sure that we're looking for a T2 Gate Array. */ 116 if (strcmp(ma->ma_name, match->cf_name) != 0) 117 return (0); 118 119 if (ttwogafound) 120 return (0); 121 122 return (1); 123 } 124 125 void 126 ttwogaattach(device_t parent, device_t self, void *aux) 127 { 128 struct pcibus_attach_args pba; 129 int hose; 130 131 printf("\n"); 132 133 /* note that we've attached the chipset; can't have 2 T2s */ 134 ttwogafound = 1; 135 136 /* 137 * Don't do much here; real work is deferred to the ttwopci 138 * layer. 139 */ 140 for (hose = 0; hose < 1 /* XXX */; hose++) { 141 #if 0 /* XXX */ 142 if (badaddr(_T2GA(hose, T2_IOCSR), sizeof(u_int64_t))) 143 continue; 144 #endif 145 memset(&pba, 0, sizeof(pba)); 146 pba.pba_bus = hose; 147 148 (void) config_found_ia(self, "ttwoga", &pba, ttwogaprint); 149 } 150 } 151 152 int 153 ttwogaprint(void *aux, const char *pnp) 154 { 155 struct pcibus_attach_args *pba = aux; 156 157 if (pnp) 158 aprint_normal("ttwopci at %s", pnp); 159 aprint_normal(" hose %d", pba->pba_bus); 160 return (UNCONF); 161 } 162 163 /* 164 * Set up the chipset's function pointers. 165 */ 166 struct ttwoga_config * 167 ttwoga_init(int hose, int mallocsafe) 168 { 169 struct ttwoga_config *tcp; 170 171 if (hose < 0 || hose > 1) 172 panic("ttwoga_init: bad hose # %d", hose); 173 174 tcp = &ttwoga_configuration[hose]; 175 tcp->tc_hose = hose; 176 177 tcp->tc_sysmap = &ttwoga_sysmap[hose]; 178 179 /* 180 * Sable-Gamma has a CBUS address bias. 181 */ 182 ttwoga_gamma_cbus_bias = (alpha_implver() == ALPHA_IMPLVER_EV5) ? 183 T2_GAMMA_CBUS_BIAS : 0; 184 185 alpha_mb(); 186 187 tcp->tc_io_bus_start = (T2GA(tcp, T2_HAE0_2) & HAE0_2_PUA2) << 23; 188 tcp->tc_d_mem_bus_start = (T2GA(tcp, T2_HAE0_4) & HAE0_4_PUA1) << 30; 189 tcp->tc_s_mem_bus_start = (T2GA(tcp, T2_HAE0_1) & HAE0_1_PUA1) << 27; 190 191 tcp->tc_rev = (T2GA(tcp, T2_IOCSR) & IOCSR_TRN) >> IOCSR_TRN_SHIFT; 192 193 if (tcp->tc_initted == 0) { 194 /* don't do these twice since they set up extents */ 195 ttwoga_bus_io_init(&tcp->tc_iot, tcp); 196 ttwoga_bus_mem_init(&tcp->tc_memt, tcp); 197 } 198 tcp->tc_mallocsafe = mallocsafe; 199 200 ttwoga_pci_init(&tcp->tc_pc, tcp); 201 202 tcp->tc_initted = 1; 203 204 return (tcp); 205 } 206 207 int 208 ttwopcimatch(device_t parent, cfdata_t match, void *aux) 209 { 210 struct pcibus_attach_args *pba = aux; 211 212 if (match->cf_loc[PCIBUSCF_BUS] != PCIBUSCF_BUS_DEFAULT && 213 match->cf_loc[PCIBUSCF_BUS] != pba->pba_bus) 214 return (0); 215 216 return (1); 217 } 218 219 void 220 ttwopciattach(device_t parent, device_t self, void *aux) 221 { 222 struct pcibus_attach_args *pba = aux, npba; 223 struct ttwoga_config *tcp; 224 225 /* 226 * set up the chipset's info; done one at console init time 227 * (maybe), but doesn't hurt to do it twice. 228 */ 229 tcp = ttwoga_init(pba->pba_bus, 1); 230 231 ttwoga_dma_init(tcp); 232 233 aprint_normal(": %s Gate Array rev. %d\n", 234 (tcp->tc_rev < TRN_T3) ? "T2" : "T3 or T4", 235 tcp->tc_rev); 236 237 if (tcp->tc_rev < 1) 238 aprint_normal_dev(self, "WARNING: T2 NOT PASS2... NO BETS...\n"); 239 240 switch (cputype) { 241 #if defined(DEC_2100_A500) || defined(DEC_2100A_A500) 242 case ST_DEC_2100_A500: 243 case ST_DEC_2100A_A500: 244 pci_2100_a500_pickintr(tcp); 245 break; 246 #endif 247 248 default: 249 panic("ttwogaattach: shouldn't be here, really..."); 250 } 251 252 npba.pba_iot = &tcp->tc_iot; 253 npba.pba_memt = &tcp->tc_memt; 254 npba.pba_dmat = 255 alphabus_dma_get_tag(&tcp->tc_dmat_direct, ALPHA_BUS_PCI); 256 npba.pba_dmat64 = NULL; 257 npba.pba_pc = &tcp->tc_pc; 258 npba.pba_bus = 0; 259 npba.pba_bridgetag = NULL; 260 npba.pba_flags = PCI_FLAGS_IO_OKAY | PCI_FLAGS_MEM_OKAY; 261 262 /* 263 * Hose 0 has the STDIO module. 264 */ 265 if (pba->pba_bus == 0) { 266 (void) config_found_ia(self, "sableiobus", &npba, 267 ttwosableioprint); 268 } 269 270 (void) config_found_ia(self, "pcibus", &npba, pcibusprint); 271 } 272 273 int 274 ttwosableioprint(void *aux, const char *pnp) 275 { 276 struct pcibus_attach_args *pba = aux; 277 278 if (pnp) 279 aprint_normal("sableio at %s", pnp); 280 aprint_normal(" bus %d", pba->pba_bus); 281 return (UNCONF); 282 } 283
Indexes created Wed Oct 01 15:09:59 GMT 2025