Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/arm/at91/at91.c
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
1 /*- 2 * Copyright (c) 2005 Olivier Houchard. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25 #include <sys/cdefs.h> 26 __FBSDID("$FreeBSD: releng/6.3/sys/arm/at91/at91.c 166998 2007-02-25 23:09:51Z cognet $"); 27 28 #include <sys/param.h> 29 #include <sys/systm.h> 30 #include <sys/bus.h> 31 #include <sys/kernel.h> 32 #include <sys/malloc.h> 33 #include <sys/module.h> 34 35 #include <vm/vm.h> 36 #include <vm/vm_kern.h> 37 #include <vm/pmap.h> 38 #include <vm/vm_page.h> 39 #include <vm/vm_extern.h> 40 41 #define _ARM32_BUS_DMA_PRIVATE 42 #include <machine/bus.h> 43 #include <machine/intr.h> 44 45 #include <arm/at91/at91rm92reg.h> 46 #include <arm/at91/at91var.h> 47 48 static struct at91_softc *at91_softc; 49 50 static int 51 at91_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int flags, 52 bus_space_handle_t *bshp) 53 { 54 vm_paddr_t pa, endpa; 55 56 pa = trunc_page(bpa); 57 if (pa >= 0xfff00000) { 58 *bshp = pa - 0xf0000000 + 0xd0000000; 59 return (0); 60 } 61 if (pa >= 0xdff00000) 62 return (0); 63 endpa = round_page(bpa + size); 64 65 *bshp = (vm_offset_t)pmap_mapdev(pa, endpa - pa); 66 67 return (0); 68 } 69 70 static void 71 at91_bs_unmap(void *t, bus_space_handle_t h, bus_size_t size) 72 { 73 vm_offset_t va, endva; 74 75 va = trunc_page((vm_offset_t)t); 76 endva = va + round_page(size); 77 78 /* Free the kernel virtual mapping. */ 79 kmem_free(kernel_map, va, endva - va); 80 } 81 82 static int 83 at91_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset, 84 bus_size_t size, bus_space_handle_t *nbshp) 85 { 86 87 *nbshp = bsh + offset; 88 return (0); 89 } 90 91 static void 92 at91_barrier(void *t, bus_space_handle_t bsh, bus_size_t size, bus_size_t b, 93 int a) 94 { 95 } 96 97 bs_protos(generic); 98 bs_protos(generic_armv4); 99 100 struct bus_space at91_bs_tag = { 101 /* cookie */ 102 (void *) 0, 103 104 /* mapping/unmapping */ 105 at91_bs_map, 106 at91_bs_unmap, 107 at91_bs_subregion, 108 109 /* allocation/deallocation */ 110 NULL, 111 NULL, 112 113 /* barrier */ 114 at91_barrier, 115 116 /* read (single) */ 117 generic_bs_r_1, 118 generic_armv4_bs_r_2, 119 generic_bs_r_4, 120 NULL, 121 122 /* read multiple */ 123 generic_bs_rm_1, 124 generic_armv4_bs_rm_2, 125 generic_bs_rm_4, 126 NULL, 127 128 /* read region */ 129 generic_bs_rr_1, 130 generic_armv4_bs_rr_2, 131 generic_bs_rr_4, 132 NULL, 133 134 /* write (single) */ 135 generic_bs_w_1, 136 generic_armv4_bs_w_2, 137 generic_bs_w_4, 138 NULL, 139 140 /* write multiple */ 141 generic_bs_wm_1, 142 generic_armv4_bs_wm_2, 143 generic_bs_wm_4, 144 NULL, 145 146 /* write region */ 147 NULL, 148 generic_armv4_bs_wr_2, 149 generic_bs_wr_4, 150 NULL, 151 152 /* set multiple */ 153 NULL, 154 NULL, 155 NULL, 156 NULL, 157 158 /* set region */ 159 NULL, 160 generic_armv4_bs_sr_2, 161 generic_bs_sr_4, 162 NULL, 163 164 /* copy */ 165 NULL, 166 generic_armv4_bs_c_2, 167 NULL, 168 NULL, 169 }; 170 171 static int 172 at91_probe(device_t dev) 173 { 174 device_set_desc(dev, "AT91RM9200 device bus"); 175 return (0); 176 } 177 178 static void 179 at91_identify(driver_t *drv, device_t parent) 180 { 181 182 BUS_ADD_CHILD(parent, 0, "atmelarm", 0); 183 } 184 185 struct arm32_dma_range * 186 bus_dma_get_range(void) 187 { 188 189 return (NULL); 190 } 191 192 int 193 bus_dma_get_range_nb(void) 194 { 195 return (0); 196 } 197 198 extern void irq_entry(void); 199 200 static void 201 at91_add_child(device_t dev, int prio, const char *name, int unit, 202 bus_addr_t addr, bus_size_t size, int irq0, int irq1, int irq2) 203 { 204 device_t kid; 205 struct at91_ivar *ivar; 206 207 kid = device_add_child_ordered(dev, prio, name, unit); 208 if (kid == NULL) { 209 printf("Can't add child %s%d ordered\n", name, unit); 210 return; 211 } 212 ivar = malloc(sizeof(*ivar), M_DEVBUF, M_WAITOK | M_ZERO); 213 if (ivar == NULL) { 214 device_delete_child(dev, kid); 215 printf("Can't add alloc ivar\n"); 216 return; 217 } 218 device_set_ivars(kid, ivar); 219 resource_list_init(&ivar->resources); 220 if (irq0 != -1) 221 bus_set_resource(kid, SYS_RES_IRQ, 0, irq0, 1); 222 if (irq1 != 0) 223 bus_set_resource(kid, SYS_RES_IRQ, 1, irq1, 1); 224 if (irq2 != 0) 225 bus_set_resource(kid, SYS_RES_IRQ, 2, irq2, 1); 226 if (addr != 0) 227 bus_set_resource(kid, SYS_RES_MEMORY, 0, addr, size); 228 } 229 230 struct cpu_devs 231 { 232 const char *name; 233 int unit; 234 bus_addr_t mem_base; 235 bus_size_t mem_len; 236 int irq0; 237 int irq1; 238 int irq2; 239 }; 240 241 struct cpu_devs at91rm9200_devs[] = 242 { 243 // All the "system" devices 244 { 245 "at91_st", 0, 246 AT91RM92_BASE + AT91RM92_ST_BASE, AT91RM92_ST_SIZE, 247 AT91RM92_IRQ_SYSTEM 248 }, 249 { 250 "at91_pio", 0, 251 AT91RM92_BASE + AT91RM92_PIOA_BASE, AT91RM92_PIO_SIZE, 252 AT91RM92_IRQ_SYSTEM 253 }, 254 { 255 "at91_pio", 1, 256 AT91RM92_BASE + AT91RM92_PIOB_BASE, AT91RM92_PIO_SIZE, 257 AT91RM92_IRQ_SYSTEM 258 }, 259 { 260 "at91_pio", 2, 261 AT91RM92_BASE + AT91RM92_PIOC_BASE, AT91RM92_PIO_SIZE, 262 AT91RM92_IRQ_SYSTEM 263 }, 264 { 265 "at91_pio", 3, 266 AT91RM92_BASE + AT91RM92_PIOD_BASE, AT91RM92_PIO_SIZE, 267 AT91RM92_IRQ_SYSTEM 268 }, 269 { 270 "at91_pmc", 0, 271 AT91RM92_BASE + AT91RM92_PMC_BASE, AT91RM92_PMC_SIZE, 272 AT91RM92_IRQ_SYSTEM 273 }, 274 { 275 "at91_aic", 0, 276 AT91RM92_BASE + AT91RM92_AIC_BASE, AT91RM92_AIC_SIZE, 277 0 // Interrupt controller has no interrupts! 278 }, 279 { 280 "at91_rtc", 0, 281 AT91RM92_BASE + AT91RM92_RTC_BASE, AT91RM92_RTC_SIZE, 282 AT91RM92_IRQ_SYSTEM 283 }, 284 { 285 "at91_mc", 0, 286 AT91RM92_BASE + AT91RM92_MC_BASE, AT91RM92_MC_SIZE, 287 AT91RM92_IRQ_SYSTEM 288 }, 289 290 // All other devices 291 { 292 "at91_tc", 0, 293 AT91RM92_BASE + AT91RM92_TC0_BASE, AT91RM92_TC_SIZE, 294 AT91RM92_IRQ_TC0, AT91RM92_IRQ_TC1, AT91RM92_IRQ_TC2 295 }, 296 { 297 "at91_tc", 1, 298 AT91RM92_BASE + AT91RM92_TC1_BASE, AT91RM92_TC_SIZE, 299 AT91RM92_IRQ_TC3, AT91RM92_IRQ_TC4, AT91RM92_IRQ_TC5 300 }, 301 { 302 "at91_udp", 0, 303 AT91RM92_BASE + AT91RM92_UDP_BASE, AT91RM92_UDP_SIZE, 304 AT91RM92_IRQ_UDP 305 }, 306 { 307 "at91_mci", 0, 308 AT91RM92_BASE + AT91RM92_MCI_BASE, AT91RM92_MCI_SIZE, 309 AT91RM92_IRQ_MCI 310 }, 311 { 312 "at91_twi", 0, 313 AT91RM92_BASE + AT91RM92_TWI_BASE, AT91RM92_TWI_SIZE, 314 AT91RM92_IRQ_TWI 315 }, 316 { 317 "ate", 0, 318 AT91RM92_BASE + AT91RM92_EMAC_BASE, AT91RM92_EMAC_SIZE, 319 AT91RM92_IRQ_EMAC 320 }, 321 #ifndef SKYEYE_WORKAROUNDS 322 { 323 "uart", 0, 324 AT91RM92_BASE + AT91RM92_DBGU_BASE, AT91RM92_DBGU_SIZE, 325 AT91RM92_IRQ_SYSTEM 326 }, 327 { 328 "uart", 1, 329 AT91RM92_BASE + AT91RM92_USART0_BASE, AT91RM92_USART_SIZE, 330 AT91RM92_IRQ_USART0 331 }, 332 { 333 "uart", 2, 334 AT91RM92_BASE + AT91RM92_USART1_BASE, AT91RM92_USART_SIZE, 335 AT91RM92_IRQ_USART1 336 }, 337 { 338 "uart", 3, 339 AT91RM92_BASE + AT91RM92_USART2_BASE, AT91RM92_USART_SIZE, 340 AT91RM92_IRQ_USART2 341 }, 342 { 343 "uart", 4, 344 AT91RM92_BASE + AT91RM92_USART3_BASE, AT91RM92_USART_SIZE, 345 AT91RM92_IRQ_USART3 346 }, 347 #else 348 { 349 "uart", 0, 350 AT91RM92_BASE + AT91RM92_USART0_BASE, AT91RM92_USART_SIZE, 351 AT91RM92_IRQ_USART0 352 }, 353 #endif 354 { 355 "at91_ssc", 0, 356 AT91RM92_BASE + AT91RM92_SSC0_BASE, AT91RM92_SSC_SIZE, 357 AT91RM92_IRQ_SSC0 358 }, 359 { 360 "at91_ssc", 1, 361 AT91RM92_BASE + AT91RM92_SSC1_BASE, AT91RM92_SSC_SIZE, 362 AT91RM92_IRQ_SSC1 363 }, 364 { 365 "at91_ssc", 2, 366 AT91RM92_BASE + AT91RM92_SSC2_BASE, AT91RM92_SSC_SIZE, 367 AT91RM92_IRQ_SSC2 368 }, 369 { 370 "at91_spi", 0, 371 AT91RM92_BASE + AT91RM92_SPI_BASE, AT91RM92_SPI_SIZE, 372 AT91RM92_IRQ_SPI 373 }, 374 { 375 "ohci", 0, 376 AT91RM92_OHCI_BASE, AT91RM92_OHCI_SIZE, 377 AT91RM92_IRQ_UHP 378 }, 379 { 0, 0, 0, 0, 0 } 380 }; 381 382 static void 383 at91_cpu_add_builtin_children(device_t dev, struct at91_softc *sc) 384 { 385 int i; 386 struct cpu_devs *walker; 387 388 // XXX should look at the device id in the DBGU register and 389 // XXX based on the CPU load in these devices 390 for (i = 0, walker = at91rm9200_devs; walker->name; i++, walker++) { 391 at91_add_child(dev, i, walker->name, walker->unit, 392 walker->mem_base, walker->mem_len, walker->irq0, 393 walker->irq1, walker->irq2); 394 } 395 } 396 397 #define NORMDEV 50 398 399 static int 400 at91_attach(device_t dev) 401 { 402 struct at91_softc *sc = device_get_softc(dev); 403 int i; 404 405 at91_softc = sc; 406 sc->sc_st = &at91_bs_tag; 407 sc->sc_sh = AT91RM92_BASE; 408 sc->dev = dev; 409 if (bus_space_subregion(sc->sc_st, sc->sc_sh, AT91RM92_SYS_BASE, 410 AT91RM92_SYS_SIZE, &sc->sc_sys_sh) != 0) 411 panic("Enable to map IRQ registers"); 412 sc->sc_irq_rman.rm_type = RMAN_ARRAY; 413 sc->sc_irq_rman.rm_descr = "AT91RM92 IRQs"; 414 sc->sc_mem_rman.rm_type = RMAN_ARRAY; 415 sc->sc_mem_rman.rm_descr = "AT91RM92 Memory"; 416 #if 0 417 sc->sc_usbmem_rman.rm_type = RMAN_ARRAY; 418 sc->sc_usbmem_rman.rm_descr = "AT91RM92 USB Memory-mapped regs"; 419 #endif 420 if (rman_init(&sc->sc_irq_rman) != 0 || 421 rman_manage_region(&sc->sc_irq_rman, 1, 31) != 0) 422 panic("at91_attach: failed to set up IRQ rman"); 423 if (rman_init(&sc->sc_mem_rman) != 0 || 424 rman_manage_region(&sc->sc_mem_rman, 0xdff00000ul, 425 0xdffffffful) != 0) 426 panic("at91_attach: failed to set up memory rman"); 427 if (rman_manage_region(&sc->sc_mem_rman, AT91RM92_OHCI_BASE, 428 AT91RM92_OHCI_BASE + AT91RM92_OHCI_SIZE - 1) != 0) 429 panic("at91_attach: failed to set up ohci memory"); 430 431 for (i = 0; i < 32; i++) { 432 bus_space_write_4(sc->sc_st, sc->sc_sys_sh, IC_SVR + 433 i * 4, i); 434 /* Priority. */ 435 /* XXX: Give better priorities to IRQs */ 436 bus_space_write_4(sc->sc_st, sc->sc_sys_sh, IC_SMR + i * 4, 437 0); 438 if (i < 8) 439 bus_space_write_4(sc->sc_st, sc->sc_sys_sh, IC_EOICR, 440 1); 441 442 } 443 bus_space_write_4(sc->sc_st, sc->sc_sys_sh, IC_SPU, 32); 444 /* No debug. */ 445 bus_space_write_4(sc->sc_st, sc->sc_sys_sh, IC_DCR, 0); 446 /* Disable and clear all interrupts. */ 447 bus_space_write_4(sc->sc_st, sc->sc_sys_sh, IC_IDCR, 0xffffffff); 448 bus_space_write_4(sc->sc_st, sc->sc_sys_sh, IC_ICCR, 0xffffffff); 449 450 /* XXX */ 451 /* Disable all interrupts for RTC (0xe24 == RTC_IDR) */ 452 bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0xe24, 0xffffffff); 453 /* DIsable all interrupts for DBGU */ 454 bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0x20c, 0xffffffff); 455 /* Disable all interrupts for the SDRAM controller */ 456 bus_space_write_4(sc->sc_st, sc->sc_sys_sh, 0xfa8, 0xffffffff); 457 458 at91_cpu_add_builtin_children(dev, sc); 459 460 bus_generic_probe(dev); 461 bus_generic_attach(dev); 462 enable_interrupts(I32_bit | F32_bit); 463 return (0); 464 } 465 466 static struct resource * 467 at91_alloc_resource(device_t dev, device_t child, int type, int *rid, 468 u_long start, u_long end, u_long count, u_int flags) 469 { 470 struct at91_softc *sc = device_get_softc(dev); 471 struct resource_list_entry *rle; 472 struct at91_ivar *ivar = device_get_ivars(child); 473 struct resource_list *rl = &ivar->resources; 474 475 if (device_get_parent(child) != dev) 476 return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 477 type, rid, start, end, count, flags)); 478 479 rle = resource_list_find(rl, type, *rid); 480 if (rle == NULL) 481 return (NULL); 482 if (rle->res) 483 panic("Resource rid %d type %d already in use", *rid, type); 484 if (start == 0UL && end == ~0UL) { 485 start = rle->start; 486 count = ulmax(count, rle->count); 487 end = ulmax(rle->end, start + count - 1); 488 } 489 switch (type) 490 { 491 case SYS_RES_IRQ: 492 rle->res = rman_reserve_resource(&sc->sc_irq_rman, 493 start, end, count, flags, child); 494 break; 495 case SYS_RES_MEMORY: 496 #if 0 497 if (start >= 0x00300000 && start <= 0x003fffff) 498 rle->res = rman_reserve_resource(&sc->sc_usbmem_rman, 499 start, end, count, flags, child); 500 else 501 #endif 502 rle->res = rman_reserve_resource(&sc->sc_mem_rman, 503 start, end, count, flags, child); 504 rman_set_bustag(rle->res, &at91_bs_tag); 505 rman_set_bushandle(rle->res, start); 506 break; 507 } 508 if (rle->res) { 509 rle->start = rman_get_start(rle->res); 510 rle->end = rman_get_end(rle->res); 511 rle->count = count; 512 rman_set_rid(rle->res, *rid); 513 } 514 return (rle->res); 515 } 516 517 static struct resource_list * 518 at91_get_resource_list(device_t dev, device_t child) 519 { 520 struct at91_ivar *ivar; 521 522 ivar = device_get_ivars(child); 523 return (&(ivar->resources)); 524 } 525 526 static int 527 at91_release_resource(device_t dev, device_t child, int type, 528 int rid, struct resource *r) 529 { 530 struct resource_list *rl; 531 struct resource_list_entry *rle; 532 533 rl = at91_get_resource_list(dev, child); 534 if (rl == NULL) 535 return (EINVAL); 536 rle = resource_list_find(rl, type, rid); 537 if (rle == NULL) 538 return (EINVAL); 539 rman_release_resource(r); 540 rle->res = NULL; 541 return (0); 542 } 543 544 static int 545 at91_setup_intr(device_t dev, device_t child, 546 struct resource *ires, int flags, driver_intr_t *intr, void *arg, 547 void **cookiep) 548 { 549 struct at91_softc *sc = device_get_softc(dev); 550 551 if (rman_get_start(ires) == AT91RM92_IRQ_SYSTEM && !(flags & INTR_FAST)) 552 panic("All system interrupt ISRs must be type INTR_FAST"); 553 BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags, intr, arg, 554 cookiep); 555 bus_space_write_4(sc->sc_st, sc->sc_sys_sh, IC_IECR, 556 1 << rman_get_start(ires)); 557 return (0); 558 } 559 560 static int 561 at91_teardown_intr(device_t dev, device_t child, struct resource *res, 562 void *cookie) 563 { 564 struct at91_softc *sc = device_get_softc(dev); 565 566 bus_space_write_4(sc->sc_st, sc->sc_sys_sh, IC_IDCR, 567 1 << rman_get_start(res)); 568 return (BUS_TEARDOWN_INTR(device_get_parent(dev), child, res, cookie)); 569 } 570 571 static int 572 at91_activate_resource(device_t bus, device_t child, int type, int rid, 573 struct resource *r) 574 { 575 #if 0 576 u_long p; 577 int error; 578 579 if (type == SYS_RES_MEMORY) { 580 error = bus_space_map(rman_get_bustag(r), 581 rman_get_bushandle(r), rman_get_size(r), 0, &p); 582 if (error) 583 return (error); 584 rman_set_bushandle(r, p); 585 } 586 #endif 587 return (rman_activate_resource(r)); 588 } 589 590 static int 591 at91_print_child(device_t dev, device_t child) 592 { 593 struct at91_ivar *ivars; 594 struct resource_list *rl; 595 int retval = 0; 596 597 ivars = device_get_ivars(child); 598 rl = &ivars->resources; 599 600 retval += bus_print_child_header(dev, child); 601 602 retval += resource_list_print_type(rl, "port", SYS_RES_IOPORT, "%#lx"); 603 retval += resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#lx"); 604 retval += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld"); 605 if (device_get_flags(dev)) 606 retval += printf(" flags %#x", device_get_flags(dev)); 607 608 retval += bus_print_child_footer(dev, child); 609 610 return (retval); 611 } 612 613 void 614 arm_mask_irq(uintptr_t nb) 615 { 616 617 bus_space_write_4(at91_softc->sc_st, 618 at91_softc->sc_sys_sh, IC_IDCR, 1 << nb); 619 620 } 621 622 int 623 arm_get_next_irq() 624 { 625 626 int status; 627 int irq; 628 629 irq = bus_space_read_4(at91_softc->sc_st, 630 at91_softc->sc_sys_sh, IC_IVR); 631 status = bus_space_read_4(at91_softc->sc_st, 632 at91_softc->sc_sys_sh, IC_ISR); 633 if (status == 0) { 634 bus_space_write_4(at91_softc->sc_st, 635 at91_softc->sc_sys_sh, IC_EOICR, 1); 636 return (-1); 637 } 638 return (irq); 639 } 640 641 void 642 arm_unmask_irq(uintptr_t nb) 643 { 644 645 bus_space_write_4(at91_softc->sc_st, 646 at91_softc->sc_sys_sh, IC_IECR, 1 << nb); 647 bus_space_write_4(at91_softc->sc_st, at91_softc->sc_sys_sh, 648 IC_EOICR, 0); 649 650 } 651 652 static device_method_t at91_methods[] = { 653 DEVMETHOD(device_probe, at91_probe), 654 DEVMETHOD(device_attach, at91_attach), 655 DEVMETHOD(device_identify, at91_identify), 656 657 DEVMETHOD(bus_alloc_resource, at91_alloc_resource), 658 DEVMETHOD(bus_setup_intr, at91_setup_intr), 659 DEVMETHOD(bus_teardown_intr, at91_teardown_intr), 660 DEVMETHOD(bus_activate_resource, at91_activate_resource), 661 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 662 DEVMETHOD(bus_get_resource_list,at91_get_resource_list), 663 DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource), 664 DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 665 DEVMETHOD(bus_release_resource, at91_release_resource), 666 DEVMETHOD(bus_print_child, at91_print_child), 667 668 {0, 0}, 669 }; 670 671 static driver_t at91_driver = { 672 "atmelarm", 673 at91_methods, 674 sizeof(struct at91_softc), 675 }; 676 static devclass_t at91_devclass; 677 678 DRIVER_MODULE(atmelarm, nexus, at91_driver, at91_devclass, 0, 0);
Cache object: ff00e89ce9c5dc304612645b132b9d5f
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]