1 /* $NetBSD: machdep.c,v 1.21 2010/11/28 08:23:25 hannken Exp $ */ 2 /* $OpenBSD: zaurus_machdep.c,v 1.25 2006/06/20 18:24:04 todd Exp $ */ 3 4 /* 5 * Copyright (c) 2002, 2003 Genetec Corporation. All rights reserved. 6 * Written by Hiroyuki Bessho for Genetec Corporation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of Genetec Corporation may not be used to endorse or 17 * promote products derived from this software without specific prior 18 * written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORPORATION 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 * 32 * Machine dependant functions for kernel setup for 33 * Intel DBPXA250 evaluation board (a.k.a. Lubbock). 34 * Based on iq80310_machhdep.c 35 */ 36 37 /* 38 * Copyright (c) 2001 Wasabi Systems, Inc. 39 * All rights reserved. 40 * 41 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed for the NetBSD Project by 54 * Wasabi Systems, Inc. 55 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 56 * or promote products derived from this software without specific prior 57 * written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 61 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 62 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 63 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 64 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 65 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 66 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 67 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 68 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 69 * POSSIBILITY OF SUCH DAMAGE. 70 */ 71 72 /* 73 * Copyright (c) 1997,1998 Mark Brinicombe. 74 * Copyright (c) 1997,1998 Causality Limited. 75 * All rights reserved. 76 * 77 * Redistribution and use in source and binary forms, with or without 78 * modification, are permitted provided that the following conditions 79 * are met: 80 * 1. Redistributions of source code must retain the above copyright 81 * notice, this list of conditions and the following disclaimer. 82 * 2. Redistributions in binary form must reproduce the above copyright 83 * notice, this list of conditions and the following disclaimer in the 84 * documentation and/or other materials provided with the distribution. 85 * 3. All advertising materials mentioning features or use of this software 86 * must display the following acknowledgement: 87 * This product includes software developed by Mark Brinicombe 88 * for the NetBSD Project. 89 * 4. The name of the company nor the name of the author may be used to 90 * endorse or promote products derived from this software without specific 91 * prior written permission. 92 * 93 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 94 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 95 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 96 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 97 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 98 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 99 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 101 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 102 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 103 * SUCH DAMAGE. 104 * 105 * Machine dependant functions for kernel setup for Intel IQ80310 evaluation 106 * boards using RedBoot firmware. 107 */ 108 109 #include <sys/cdefs.h> 110 __KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.21 2010/11/28 08:23:25 hannken Exp $"); 111 112 #include "opt_ddb.h" 113 #include "opt_kgdb.h" 114 #include "opt_modular.h" 115 #include "opt_pmap_debug.h" 116 #include "opt_md.h" 117 #include "opt_com.h" 118 #include "ksyms.h" 119 120 #include "opt_kloader.h" 121 #ifndef KLOADER_KERNEL_PATH 122 #define KLOADER_KERNEL_PATH "/netbsd" 123 #endif 124 125 #include <sys/param.h> 126 #include <sys/device.h> 127 #include <sys/systm.h> 128 #include <sys/kernel.h> 129 #include <sys/exec.h> 130 #include <sys/proc.h> 131 #include <sys/msgbuf.h> 132 #include <sys/reboot.h> 133 #include <sys/termios.h> 134 #include <sys/boot_flag.h> 135 136 #include <uvm/uvm_extern.h> 137 138 #include <dev/cons.h> 139 #include <sys/conf.h> 140 #include <sys/queue.h> 141 142 #include <machine/db_machdep.h> 143 #include <ddb/db_sym.h> 144 #include <ddb/db_extern.h> 145 #ifdef KGDB 146 #include <sys/kgdb.h> 147 #endif 148 149 #include <machine/bootconfig.h> 150 #include <machine/bootinfo.h> 151 #include <machine/bus.h> 152 #include <machine/cpu.h> 153 #include <machine/frame.h> 154 #ifdef KLOADER 155 #include <machine/kloader.h> 156 #endif 157 158 #include <arm/undefined.h> 159 #include <arm/arm32/machdep.h> 160 161 #include <arm/xscale/pxa2x0cpu.h> 162 #include <arm/xscale/pxa2x0reg.h> 163 #include <arm/xscale/pxa2x0var.h> 164 #include <arm/xscale/pxa2x0_gpio.h> 165 166 #include <arch/zaurus/zaurus/zaurus_reg.h> 167 #include <arch/zaurus/zaurus/zaurus_var.h> 168 169 #include <zaurus/dev/scoopreg.h> 170 171 #include <dev/ic/comreg.h> 172 173 #if 0 /* XXX */ 174 #include "apm.h" 175 #endif /* XXX */ 176 #if NAPM > 0 177 #include <zaurus/dev/zapmvar.h> 178 #endif 179 180 /* Kernel text starts 2MB in from the bottom of the kernel address space. */ 181 #define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00200000) 182 #define KERNEL_VM_BASE (KERNEL_BASE + 0x04000000) 183 184 /* 185 * The range 0xc4000000 - 0xcfffffff is available for kernel VM space 186 * Core-logic registers and I/O mappings occupy 0xfd000000 - 0xffffffff 187 */ 188 #define KERNEL_VM_SIZE 0x0c000000 189 190 /* 191 * Address to call from cpu_reset() to reset the machine. 192 * This is machine architecture dependant as it varies depending 193 * on where the ROM appears when you turn the MMU off. 194 */ 195 u_int cpu_reset_address = 0; 196 197 /* Define various stack sizes in pages */ 198 #define IRQ_STACK_SIZE 1 199 #define ABT_STACK_SIZE 1 200 #define UND_STACK_SIZE 1 201 202 int zaurusmod; /* Zaurus model */ 203 204 BootConfig bootconfig; /* Boot config storage */ 205 char *boot_file = NULL; 206 char *boot_args = NULL; 207 208 paddr_t physical_start; 209 paddr_t physical_freestart; 210 paddr_t physical_freeend; 211 paddr_t physical_end; 212 u_int free_pages; 213 214 #ifndef PMAP_STATIC_L1S 215 int max_processes = 64; /* Default number */ 216 #endif /* !PMAP_STATIC_L1S */ 217 218 /* Physical and virtual addresses for some global pages */ 219 pv_addr_t irqstack; 220 pv_addr_t undstack; 221 pv_addr_t abtstack; 222 extern pv_addr_t kernelstack; 223 pv_addr_t minidataclean; 224 225 paddr_t msgbufphys; 226 227 extern u_int data_abort_handler_address; 228 extern u_int prefetch_abort_handler_address; 229 extern u_int undefined_handler_address; 230 231 #ifdef PMAP_DEBUG 232 extern int pmap_debug_level; 233 #endif 234 235 #define KERNEL_PT_SYS 0 /* Page table for mapping proc0 zero page */ 236 #define KERNEL_PT_KERNEL 1 /* Page table for mapping kernel */ 237 #define KERNEL_PT_KERNEL_NUM 32 238 #define KERNEL_PT_VMDATA (KERNEL_PT_KERNEL + KERNEL_PT_KERNEL_NUM) 239 /* Page tables for mapping kernel VM */ 240 #define KERNEL_PT_VMDATA_NUM 8 /* start with 32MB of KVM */ 241 #define NUM_KERNEL_PTS (KERNEL_PT_VMDATA + KERNEL_PT_VMDATA_NUM) 242 243 pv_addr_t kernel_pt_table[NUM_KERNEL_PTS]; 244 245 const char *console = "glass"; 246 int glass_console = 0; 247 248 #ifdef KLOADER 249 pv_addr_t bootinfo_pt; 250 pv_addr_t bootinfo_pg; 251 struct kloader_bootinfo kbootinfo; 252 int kloader_howto = 0; 253 #else 254 struct bootinfo _bootinfo; 255 #endif 256 struct bootinfo *bootinfo; 257 struct btinfo_howto *bi_howto; 258 259 #define BOOTINFO_PAGE (0xa0200000UL - PAGE_SIZE) 260 261 /* Prototypes */ 262 void consinit(void); 263 void dumpsys(void); 264 #ifdef KGDB 265 void kgdb_port_init(void); 266 #endif 267 #ifdef KLOADER 268 static int parseboot(char *arg, char **filename, int *howto); 269 static char *gettrailer(char *arg); 270 static int parseopts(const char *opts, int *howto); 271 #endif 272 273 #if defined(CPU_XSCALE_PXA250) 274 static struct pxa2x0_gpioconf pxa25x_boarddep_gpioconf[] = { 275 { 34, GPIO_ALT_FN_1_IN }, /* FFRXD */ 276 { 35, GPIO_ALT_FN_1_IN }, /* FFCTS */ 277 { 39, GPIO_ALT_FN_2_OUT }, /* FFTXD */ 278 { 40, GPIO_ALT_FN_2_OUT }, /* FFDTR */ 279 { 41, GPIO_ALT_FN_2_OUT }, /* FFRTS */ 280 281 { 44, GPIO_ALT_FN_1_IN }, /* BTCST */ 282 { 45, GPIO_ALT_FN_2_OUT }, /* BTRST */ 283 284 { -1 } 285 }; 286 static struct pxa2x0_gpioconf *pxa25x_zaurus_gpioconf[] = { 287 pxa25x_com_btuart_gpioconf, 288 pxa25x_com_ffuart_gpioconf, 289 pxa25x_com_stuart_gpioconf, 290 pxa25x_boarddep_gpioconf, 291 NULL 292 }; 293 #else 294 static struct pxa2x0_gpioconf *pxa25x_zaurus_gpioconf[] = { 295 NULL 296 }; 297 #endif 298 #if defined(CPU_XSCALE_PXA270) 299 static struct pxa2x0_gpioconf pxa27x_boarddep_gpioconf[] = { 300 { 34, GPIO_ALT_FN_1_IN }, /* FFRXD */ 301 { 35, GPIO_ALT_FN_1_IN }, /* FFCTS */ 302 { 39, GPIO_ALT_FN_2_OUT }, /* FFTXD */ 303 { 40, GPIO_ALT_FN_2_OUT }, /* FFDTR */ 304 { 41, GPIO_ALT_FN_2_OUT }, /* FFRTS */ 305 306 { 44, GPIO_ALT_FN_1_IN }, /* BTCST */ 307 { 45, GPIO_ALT_FN_2_OUT }, /* BTRST */ 308 309 { 104, GPIO_ALT_FN_1_OUT }, /* pSKTSEL */ 310 311 { -1 } 312 }; 313 static struct pxa2x0_gpioconf *pxa27x_zaurus_gpioconf[] = { 314 pxa27x_com_btuart_gpioconf, 315 pxa27x_com_ffuart_gpioconf, 316 pxa27x_com_stuart_gpioconf, 317 pxa27x_i2c_gpioconf, 318 pxa27x_i2s_gpioconf, 319 pxa27x_pxamci_gpioconf, 320 pxa27x_boarddep_gpioconf, 321 NULL 322 }; 323 #else 324 static struct pxa2x0_gpioconf *pxa27x_zaurus_gpioconf[] = { 325 NULL 326 }; 327 #endif 328 329 /* 330 * void cpu_reboot(int howto, char *bootstr) 331 * 332 * Reboots the system 333 * 334 * Deal with any syncing, unmounting, dumping and shutdown hooks, 335 * then reset the CPU. 336 */ 337 void 338 cpu_reboot(int howto, char *bootstr) 339 { 340 /* 341 * If we are still cold then hit the air brakes 342 * and crash to earth fast 343 */ 344 if (cold) { 345 howto |= RB_HALT; 346 goto haltsys; 347 } 348 349 boothowto = howto; 350 351 #ifdef KLOADER 352 if ((howto & RB_HALT) == 0 && panicstr == NULL) { 353 char *filename = NULL; 354 355 if ((howto & RB_STRING) && (bootstr != NULL)) { 356 if (parseboot(bootstr, &filename, &kloader_howto) == 0){ 357 filename = NULL; 358 kloader_howto = 0; 359 } 360 } 361 if (kloader_howto != 0) { 362 printf("howto: 0x%x\n", kloader_howto); 363 } 364 if (filename != NULL) { 365 kloader_reboot_setup(filename); 366 } else { 367 kloader_reboot_setup(KLOADER_KERNEL_PATH); 368 } 369 } 370 #endif 371 372 /* 373 * If RB_NOSYNC was not specified sync the discs. 374 * Note: Unless cold is set to 1 here, syslogd will die during the 375 * unmount. It looks like syslogd is getting woken up only to find 376 * that it cannot page part of the binary in as the filesystem has 377 * been unmounted. 378 */ 379 if (!(howto & RB_NOSYNC)) { 380 bootsync(); 381 /* 382 * If we've been adjusting the clock, the todr 383 * will be out of synch; adjust it now. 384 */ 385 resettodr(); 386 } 387 388 /* Wait 3s */ 389 delay(3 * 1000 * 1000); 390 391 /* Say NO to interrupts */ 392 splhigh(); 393 394 /* Do a dump if requested. */ 395 if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP) 396 dumpsys(); 397 398 haltsys: 399 /* Run any shutdown hooks */ 400 doshutdownhooks(); 401 402 pmf_system_shutdown(boothowto); 403 404 /* Make sure IRQ's are disabled */ 405 IRQdisable; 406 407 if (howto & RB_HALT) { 408 #if NAPM > 0 409 if (howto & RB_POWERDOWN) { 410 printf("\nAttempting to power down...\n"); 411 zapm_poweroff(); 412 } 413 #endif 414 printf("The operating system has halted.\n"); 415 printf("Please press any key to reboot.\n\n"); 416 cngetc(); 417 } 418 #ifdef KLOADER 419 else if (panicstr == NULL) { 420 delay(1 * 1000 * 1000); 421 kloader_reboot(); 422 printf("\n"); 423 printf("Failed to load a new kernel.\n"); 424 printf("Please press any key to reboot.\n\n"); 425 cngetc(); 426 } 427 #endif 428 429 printf("rebooting...\n"); 430 delay(1 * 1000 * 1000); 431 zaurus_restart(); 432 433 printf("REBOOT FAILED!!!\n"); 434 for (;;) 435 continue; 436 /*NOTREACHED*/ 437 } 438 439 /* 440 * Do a GPIO reset, immediately causing the processor to begin the normal 441 * boot sequence. See 2.7 Reset in the PXA27x Developer's Manual for the 442 * summary of effects of this kind of reset. 443 */ 444 void 445 zaurus_restart(void) 446 { 447 uint32_t rv; 448 449 rv = pxa2x0_memctl_read(MEMCTL_MSC0); 450 if ((rv & 0xffff0000) == 0x7ff00000) { 451 pxa2x0_memctl_write(MEMCTL_MSC0, (rv & 0xffff) | 0x7ee00000); 452 } 453 454 /* External reset circuit presumably asserts nRESET_GPIO. */ 455 pxa2x0_gpio_set_function(89, GPIO_OUT | GPIO_SET); 456 delay(1 * 1000* 1000); /* wait 1s */ 457 } 458 459 static inline pd_entry_t * 460 read_ttb(void) 461 { 462 u_long ttb; 463 464 __asm volatile("mrc p15, 0, %0, c2, c0, 0" : "=r" (ttb)); 465 466 return (pd_entry_t *)(ttb & ~((1 << 14) - 1)); 467 } 468 469 /* 470 * Static device mappings. These peripheral registers are mapped at 471 * fixed virtual addresses very early in initarm() so that we can use 472 * them while booting the kernel, and stay at the same address 473 * throughout whole kernel's life time. 474 * 475 * We use this table twice; once with bootstrap page table, and once 476 * with kernel's page table which we build up in initarm(). 477 * 478 * Since we map these registers into the bootstrap page table using 479 * pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map 480 * registers segment-aligned and segment-rounded in order to avoid 481 * using the 2nd page tables. 482 */ 483 #define _A(a) ((a) & ~L1_S_OFFSET) 484 #define _S(s) (((s) + L1_S_SIZE - 1) & ~(L1_S_SIZE-1)) 485 486 static const struct pmap_devmap zaurus_devmap[] = { 487 { 488 ZAURUS_GPIO_VBASE, 489 _A(PXA2X0_GPIO_BASE), 490 _S(PXA2X0_GPIO_SIZE), 491 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE, 492 }, 493 { 494 ZAURUS_CLKMAN_VBASE, 495 _A(PXA2X0_CLKMAN_BASE), 496 _S(PXA2X0_CLKMAN_SIZE), 497 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE, 498 }, 499 { 500 ZAURUS_INTCTL_VBASE, 501 _A(PXA2X0_INTCTL_BASE), 502 _S(PXA2X0_INTCTL_SIZE), 503 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE, 504 }, 505 { 506 ZAURUS_MEMCTL_VBASE, 507 _A(PXA2X0_MEMCTL_BASE), 508 _S(PXA2X0_MEMCTL_SIZE), 509 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE, 510 }, 511 { 512 ZAURUS_SCOOP0_VBASE, 513 _A(C3000_SCOOP0_BASE), 514 _S(SCOOP_SIZE), 515 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE, 516 }, 517 { 518 ZAURUS_SCOOP1_VBASE, 519 _A(C3000_SCOOP1_BASE), 520 _S(SCOOP_SIZE), 521 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE, 522 }, 523 { 524 ZAURUS_FFUART_VBASE, 525 _A(PXA2X0_FFUART_BASE), 526 _S(4 * COM_NPORTS), 527 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE, 528 }, 529 { 530 ZAURUS_BTUART_VBASE, 531 _A(PXA2X0_BTUART_BASE), 532 _S(4 * COM_NPORTS), 533 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE, 534 }, 535 { 536 ZAURUS_STUART_VBASE, 537 _A(PXA2X0_STUART_BASE), 538 _S(4 * COM_NPORTS), 539 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE, 540 }, 541 542 {0, 0, 0, 0, 0,} 543 }; 544 545 #undef _A 546 #undef _S 547 548 void green_on(int virt); 549 void 550 green_on(int virt) 551 { 552 /* clobber green led p */ 553 volatile uint16_t *p; 554 555 if (virt) { 556 p = (volatile uint16_t *)(ZAURUS_SCOOP0_VBASE + SCOOP_GPWR); 557 } else { 558 p = (volatile uint16_t *)(C3000_SCOOP0_BASE + SCOOP_GPWR); 559 } 560 561 *p |= (1 << SCOOP0_LED_GREEN); 562 } 563 564 void irda_on(int virt); 565 void 566 irda_on(int virt) 567 { 568 /* clobber IrDA led p */ 569 volatile uint16_t *p; 570 571 if (virt) { 572 /* XXX scoop1 registers are not page-aligned! */ 573 int ofs = C3000_SCOOP1_BASE - trunc_page(C3000_SCOOP1_BASE); 574 p = (volatile uint16_t *)(ZAURUS_SCOOP1_VBASE + ofs + SCOOP_GPWR); 575 } else { 576 p = (volatile uint16_t *)(C3000_SCOOP1_BASE + SCOOP_GPWR); 577 } 578 579 *p &= ~(1 << SCOOP1_IR_ON); 580 } 581 582 /* 583 * u_int initarm(...) 584 * 585 * Initial entry point on startup. This gets called before main() is 586 * entered. 587 * It should be responsible for setting up everything that must be 588 * in place when main is called. 589 * This includes 590 * Taking a copy of the boot configuration structure. 591 * Initialising the physical console so characters can be printed. 592 * Setting up page tables for the kernel 593 * Relocating the kernel to the bottom of physical memory 594 */ 595 u_int 596 initarm(void *arg) 597 { 598 #ifdef DIAGNOSTIC 599 extern vsize_t xscale_minidata_clean_size; /* used in KASSERT */ 600 #endif 601 extern vaddr_t xscale_cache_clean_addr; 602 int loop; 603 int loop1; 604 u_int l1pagetable; 605 paddr_t memstart; 606 psize_t memsize; 607 struct pxa2x0_gpioconf **zaurus_gpioconf; 608 u_int *magicaddr; 609 610 /* Get ready for zaurus_restart() */ 611 pxa2x0_memctl_bootstrap(PXA2X0_MEMCTL_BASE); 612 613 /* 614 * Heads up ... Setup the CPU / MMU / TLB functions 615 */ 616 if (set_cpufuncs()) 617 panic("cpu not recognized!"); 618 619 /* Get ready for splfoo() */ 620 pxa2x0_intr_bootstrap(PXA2X0_INTCTL_BASE); 621 622 /* map some peripheral registers at static I/O area */ 623 pmap_devmap_bootstrap((vaddr_t)read_ttb(), zaurus_devmap); 624 625 /* set new memctl register address so that zaurus_restart() doesn't 626 touch illegal address. */ 627 pxa2x0_memctl_bootstrap(ZAURUS_MEMCTL_VBASE); 628 629 /* set new intc register address so that splfoo() doesn't 630 touch illegal address. */ 631 pxa2x0_intr_bootstrap(ZAURUS_INTCTL_VBASE); 632 633 /* 634 * Examine the boot args string for options we need to know about 635 * now. 636 */ 637 magicaddr = (void *)(0xa0200000 - BOOTARGS_BUFSIZ); 638 if (*magicaddr == BOOTARGS_MAGIC) { 639 #ifdef KLOADER 640 bootinfo = &kbootinfo.bootinfo; 641 #else 642 bootinfo = &_bootinfo; 643 #endif 644 memcpy(bootinfo, 645 (char *)0xa0200000 - BOOTINFO_MAXSIZE, BOOTINFO_MAXSIZE); 646 bi_howto = lookup_bootinfo(BTINFO_HOWTO); 647 boothowto = (bi_howto != NULL) ? bi_howto->howto : RB_AUTOBOOT; 648 } else { 649 boothowto = RB_AUTOBOOT; 650 } 651 *magicaddr = 0xdeadbeef; 652 #ifdef RAMDISK_HOOKS 653 boothowto |= RB_DFLTROOT; 654 #endif /* RAMDISK_HOOKS */ 655 if (boothowto & RB_MD1) { 656 /* serial console */ 657 console = "ffuart"; 658 } 659 660 /* 661 * This test will work for now but has to be revised when support 662 * for other models is added. 663 */ 664 if ((cputype & ~CPU_ID_XSCALE_COREREV_MASK) == CPU_ID_PXA27X) { 665 zaurusmod = ZAURUS_C3000; 666 zaurus_gpioconf = pxa27x_zaurus_gpioconf; 667 } else { 668 zaurusmod = ZAURUS_C860; 669 zaurus_gpioconf = pxa25x_zaurus_gpioconf; 670 } 671 672 /* setup a serial console for very early boot */ 673 pxa2x0_gpio_bootstrap(ZAURUS_GPIO_VBASE); 674 pxa2x0_gpio_config(zaurus_gpioconf); 675 pxa2x0_clkman_bootstrap(ZAURUS_CLKMAN_VBASE); 676 if (strcmp(console, "glass") != 0) 677 consinit(); 678 #ifdef KGDB 679 kgdb_port_init(); 680 #endif 681 682 #ifdef VERBOSE_INIT_ARM 683 /* Talk to the user */ 684 printf("\nNetBSD/zaurus booting ...\n"); 685 #endif 686 687 { 688 /* XXX - all Zaurus have this for now, fix memory sizing */ 689 memstart = 0xa0000000; 690 memsize = 0x04000000; /* 64MB */ 691 } 692 693 #ifdef KLOADER 694 /* copy boot parameter for kloader */ 695 kloader_bootinfo_set(&kbootinfo, 0, NULL, NULL, true); 696 #endif 697 698 #ifdef VERBOSE_INIT_ARM 699 printf("initarm: Configuring system ...\n"); 700 #endif 701 702 /* Fake bootconfig structure for the benefit of pmap.c */ 703 /* XXX must make the memory description h/w independant */ 704 bootconfig.dramblocks = 1; 705 bootconfig.dram[0].address = memstart; 706 bootconfig.dram[0].pages = memsize / PAGE_SIZE; 707 708 /* 709 * Set up the variables that define the availablilty of 710 * physical memory. For now, we're going to set 711 * physical_freestart to 0xa0200000 (where the kernel 712 * was loaded), and allocate the memory we need downwards. 713 * If we get too close to the page tables that RedBoot 714 * set up, we will panic. We will update physical_freestart 715 * and physical_freeend later to reflect what pmap_bootstrap() 716 * wants to see. 717 * 718 * XXX pmap_bootstrap() needs an enema. 719 */ 720 physical_start = bootconfig.dram[0].address; 721 physical_end = physical_start + (bootconfig.dram[0].pages * PAGE_SIZE); 722 723 physical_freestart = 0xa0009000UL; 724 physical_freeend = BOOTINFO_PAGE; 725 726 physmem = (physical_end - physical_start) / PAGE_SIZE; 727 728 #ifdef VERBOSE_INIT_ARM 729 /* Tell the user about the memory */ 730 printf("physmemory: %d pages at 0x%08lx -> 0x%08lx\n", physmem, 731 physical_start, physical_end - 1); 732 #endif 733 734 /* 735 * Okay, the kernel starts 2MB in from the bottom of physical 736 * memory. We are going to allocate our bootstrap pages downwards 737 * from there. 738 * 739 * We need to allocate some fixed page tables to get the kernel 740 * going. We allocate one page directory and a number of page 741 * tables and store the physical addresses in the kernel_pt_table 742 * array. 743 * 744 * The kernel page directory must be on a 16K boundary. The page 745 * tables must be on 4K bounaries. What we do is allocate the 746 * page directory on the first 16K boundary that we encounter, and 747 * the page tables on 4K boundaries otherwise. Since we allocate 748 * at least 3 L2 page tables, we are guaranteed to encounter at 749 * least one 16K aligned region. 750 */ 751 752 #ifdef VERBOSE_INIT_ARM 753 printf("Allocating page tables\n"); 754 #endif 755 756 free_pages = (physical_freeend - physical_freestart) / PAGE_SIZE; 757 758 #ifdef VERBOSE_INIT_ARM 759 printf("freestart = 0x%08lx, free_pages = %d (0x%08x)\n", 760 physical_freestart, free_pages, free_pages); 761 #endif 762 763 /* Define a macro to simplify memory allocation */ 764 #define valloc_pages(var, np) \ 765 alloc_pages((var).pv_pa, (np)); \ 766 (var).pv_va = KERNEL_BASE + (var).pv_pa - physical_start; 767 768 #define alloc_pages(var, np) \ 769 physical_freeend -= ((np) * PAGE_SIZE); \ 770 if (physical_freeend < physical_freestart) \ 771 panic("initarm: out of memory"); \ 772 (var) = physical_freeend; \ 773 free_pages -= (np); \ 774 memset((char *)(var), 0, ((np) * PAGE_SIZE)); 775 776 loop1 = 0; 777 for (loop = 0; loop <= NUM_KERNEL_PTS; ++loop) { 778 /* Are we 16KB aligned for an L1 ? */ 779 if (((physical_freeend - L1_TABLE_SIZE) & (L1_TABLE_SIZE - 1)) == 0 780 && kernel_l1pt.pv_pa == 0) { 781 valloc_pages(kernel_l1pt, L1_TABLE_SIZE / PAGE_SIZE); 782 } else { 783 valloc_pages(kernel_pt_table[loop1], 784 L2_TABLE_SIZE / PAGE_SIZE); 785 ++loop1; 786 } 787 } 788 #ifdef KLOADER 789 valloc_pages(bootinfo_pt, L2_TABLE_SIZE / PAGE_SIZE); 790 #endif 791 792 /* This should never be able to happen but better confirm that. */ 793 if (!kernel_l1pt.pv_pa || (kernel_l1pt.pv_pa & (L1_TABLE_SIZE-1)) != 0) 794 panic("initarm: Failed to align the kernel page directory"); 795 796 /* 797 * Allocate a page for the system page mapped to V0x00000000 798 * This page will just contain the system vectors and can be 799 * shared by all processes. 800 */ 801 alloc_pages(systempage.pv_pa, 1); 802 803 /* Allocate stacks for all modes */ 804 valloc_pages(irqstack, IRQ_STACK_SIZE); 805 valloc_pages(abtstack, ABT_STACK_SIZE); 806 valloc_pages(undstack, UND_STACK_SIZE); 807 valloc_pages(kernelstack, UPAGES); 808 809 /* Allocate enough pages for cleaning the Mini-Data cache. */ 810 KASSERT(xscale_minidata_clean_size <= PAGE_SIZE); 811 valloc_pages(minidataclean, 1); 812 813 #ifdef KLOADER 814 bootinfo_pg.pv_pa = BOOTINFO_PAGE; 815 bootinfo_pg.pv_va = KERNEL_BASE + bootinfo_pg.pv_pa - physical_start; 816 #endif 817 818 #ifdef VERBOSE_INIT_ARM 819 printf("IRQ stack: p0x%08lx v0x%08lx\n", irqstack.pv_pa, 820 irqstack.pv_va); 821 printf("ABT stack: p0x%08lx v0x%08lx\n", abtstack.pv_pa, 822 abtstack.pv_va); 823 printf("UND stack: p0x%08lx v0x%08lx\n", undstack.pv_pa, 824 undstack.pv_va); 825 printf("SVC stack: p0x%08lx v0x%08lx\n", kernelstack.pv_pa, 826 kernelstack.pv_va); 827 printf("minidataclean: p0x%08lx v0x%08lx, size = %ld\n", 828 minidataclean.pv_pa, minidataclean.pv_va, 829 xscale_minidata_clean_size); 830 #ifdef KLOADER 831 printf("bootinfo_pg: p0x%08lx v0x%08lx\n", bootinfo_pg.pv_pa, 832 bootinfo_pg.pv_va); 833 #endif 834 #endif 835 836 /* 837 * XXX Defer this to later so that we can reclaim the memory 838 * XXX used by the RedBoot page tables. 839 */ 840 alloc_pages(msgbufphys, round_page(MSGBUFSIZE) / PAGE_SIZE); 841 842 /* 843 * Ok we have allocated physical pages for the primary kernel 844 * page tables 845 */ 846 847 #ifdef VERBOSE_INIT_ARM 848 printf("Creating L1 page table at 0x%08lx\n", kernel_l1pt.pv_pa); 849 #endif 850 851 /* 852 * Now we start construction of the L1 page table 853 * We start by mapping the L2 page tables into the L1. 854 * This means that we can replace L1 mappings later on if necessary 855 */ 856 l1pagetable = kernel_l1pt.pv_pa; 857 858 /* Map the L2 pages tables in the L1 page table */ 859 pmap_link_l2pt(l1pagetable, 0x00000000, 860 &kernel_pt_table[KERNEL_PT_SYS]); 861 for (loop = 0; loop < KERNEL_PT_KERNEL_NUM; loop++) 862 pmap_link_l2pt(l1pagetable, KERNEL_BASE + loop * 0x00400000, 863 &kernel_pt_table[KERNEL_PT_KERNEL + loop]); 864 for (loop = 0; loop < KERNEL_PT_VMDATA_NUM; loop++) 865 pmap_link_l2pt(l1pagetable, KERNEL_VM_BASE + loop * 0x00400000, 866 &kernel_pt_table[KERNEL_PT_VMDATA + loop]); 867 #ifdef KLOADER 868 pmap_link_l2pt(l1pagetable, 0xa0000000, &bootinfo_pt); 869 #endif 870 871 /* update the top of the kernel VM */ 872 pmap_curmaxkvaddr = 873 KERNEL_VM_BASE + (KERNEL_PT_VMDATA_NUM * 0x00400000); 874 875 #ifdef VERBOSE_INIT_ARM 876 printf("Mapping kernel\n"); 877 #endif 878 879 /* Now we fill in the L2 pagetable for the kernel static code/data 880 * and the symbol table. */ 881 { 882 extern char etext[], _end[]; 883 size_t textsize = (uintptr_t) etext - KERNEL_TEXT_BASE; 884 size_t totalsize = (uintptr_t) _end - KERNEL_TEXT_BASE; 885 u_int logical; 886 887 textsize = (textsize + PGOFSET) & ~PGOFSET; 888 totalsize = (totalsize + PGOFSET) & ~PGOFSET; 889 890 logical = 0x00200000; /* offset of kernel in RAM */ 891 892 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 893 physical_start + logical, textsize, 894 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 895 pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 896 physical_start + logical, totalsize - textsize, 897 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 898 } 899 900 #ifdef VERBOSE_INIT_ARM 901 printf("Constructing L2 page tables\n"); 902 #endif 903 904 /* Map the stack pages */ 905 pmap_map_chunk(l1pagetable, irqstack.pv_va, irqstack.pv_pa, 906 IRQ_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 907 pmap_map_chunk(l1pagetable, abtstack.pv_va, abtstack.pv_pa, 908 ABT_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 909 pmap_map_chunk(l1pagetable, undstack.pv_va, undstack.pv_pa, 910 UND_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 911 pmap_map_chunk(l1pagetable, kernelstack.pv_va, kernelstack.pv_pa, 912 UPAGES * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 913 914 pmap_map_chunk(l1pagetable, kernel_l1pt.pv_va, kernel_l1pt.pv_pa, 915 L1_TABLE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE); 916 917 for (loop = 0; loop < NUM_KERNEL_PTS; ++loop) { 918 pmap_map_chunk(l1pagetable, kernel_pt_table[loop].pv_va, 919 kernel_pt_table[loop].pv_pa, L2_TABLE_SIZE, 920 VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE); 921 } 922 923 #ifdef KLOADER 924 pmap_map_chunk(l1pagetable, bootinfo_pt.pv_va, bootinfo_pt.pv_pa, 925 L2_TABLE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE); 926 pmap_map_chunk(l1pagetable, bootinfo_pg.pv_va, bootinfo_pg.pv_pa, 927 PAGE_SIZE, VM_PROT_ALL, PTE_CACHE); 928 #endif 929 930 /* Map the Mini-Data cache clean area. */ 931 xscale_setup_minidata(l1pagetable, minidataclean.pv_va, 932 minidataclean.pv_pa); 933 934 /* Map the vector page. */ 935 #if 0 936 /* MULTI-ICE requires that page 0 is NC/NB so that it can download the 937 * cache-clean code there. */ 938 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 939 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE); 940 #else 941 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 942 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 943 #endif 944 945 /* 946 * map integrated peripherals at same address in l1pagetable 947 * so that we can continue to use console. 948 */ 949 pmap_devmap_bootstrap(l1pagetable, zaurus_devmap); 950 951 /* 952 * Give the XScale global cache clean code an appropriately 953 * sized chunk of unmapped VA space starting at 0xff000000 954 * (our device mappings end before this address). 955 */ 956 xscale_cache_clean_addr = 0xff000000U; 957 958 /* 959 * Now we have the real page tables in place so we can switch to them. 960 * Once this is done we will be running with the REAL kernel page 961 * tables. 962 */ 963 964 /* 965 * Update the physical_freestart/physical_freeend/free_pages 966 * variables. 967 */ 968 { 969 extern char _end[]; 970 971 physical_freestart = physical_start + 972 ((((uintptr_t) _end + PGOFSET) & ~PGOFSET) - KERNEL_BASE); 973 physical_freeend = physical_end; 974 free_pages = 975 (physical_freeend - physical_freestart) / PAGE_SIZE; 976 } 977 978 /* Switch tables */ 979 #ifdef VERBOSE_INIT_ARM 980 printf("freestart = 0x%08lx, free_pages = %d (0x%x)\n", 981 physical_freestart, free_pages, free_pages); 982 printf("switching to new L1 page table @%#lx...", kernel_l1pt.pv_pa); 983 #endif 984 985 cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT); 986 cpu_setttb(kernel_l1pt.pv_pa); 987 cpu_tlb_flushID(); 988 cpu_domains(DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)); 989 990 /* 991 * Moved from cpu_startup() as data_abort_handler() references 992 * this during uvm init 993 */ 994 uvm_lwp_setuarea(&lwp0, kernelstack.pv_va); 995 996 #ifdef VERBOSE_INIT_ARM 997 printf("bootstrap done.\n"); 998 #endif 999 1000 arm32_vector_init(ARM_VECTORS_LOW, ARM_VEC_ALL); 1001 1002 /* 1003 * Pages were allocated during the secondary bootstrap for the 1004 * stacks for different CPU modes. 1005 * We must now set the r13 registers in the different CPU modes to 1006 * point to these stacks. 1007 * Since the ARM stacks use STMFD etc. we must set r13 to the top end 1008 * of the stack memory. 1009 */ 1010 #ifdef VERBOSE_INIT_ARM 1011 printf("init subsystems: stacks "); 1012 #endif 1013 1014 set_stackptr(PSR_IRQ32_MODE, 1015 irqstack.pv_va + IRQ_STACK_SIZE * PAGE_SIZE); 1016 set_stackptr(PSR_ABT32_MODE, 1017 abtstack.pv_va + ABT_STACK_SIZE * PAGE_SIZE); 1018 set_stackptr(PSR_UND32_MODE, 1019 undstack.pv_va + UND_STACK_SIZE * PAGE_SIZE); 1020 1021 /* 1022 * Well we should set a data abort handler. 1023 * Once things get going this will change as we will need a proper 1024 * handler. 1025 * Until then we will use a handler that just panics but tells us 1026 * why. 1027 * Initialisation of the vectors will just panic on a data abort. 1028 * This just fills in a slighly better one. 1029 */ 1030 #ifdef VERBOSE_INIT_ARM 1031 printf("vectors "); 1032 #endif 1033 data_abort_handler_address = (u_int)data_abort_handler; 1034 prefetch_abort_handler_address = (u_int)prefetch_abort_handler; 1035 undefined_handler_address = (u_int)undefinedinstruction_bounce; 1036 1037 /* Initialise the undefined instruction handlers */ 1038 #ifdef VERBOSE_INIT_ARM 1039 printf("undefined "); 1040 #endif 1041 undefined_init(); 1042 1043 /* Load memory into UVM. */ 1044 #ifdef VERBOSE_INIT_ARM 1045 printf("page "); 1046 #endif 1047 uvm_setpagesize(); /* initialize PAGE_SIZE-dependent variables */ 1048 uvm_page_physload(atop(physical_freestart), atop(physical_freeend), 1049 atop(physical_freestart), atop(physical_freeend), 1050 VM_FREELIST_DEFAULT); 1051 1052 /* Boot strap pmap telling it where the kernel page table is */ 1053 #ifdef VERBOSE_INIT_ARM 1054 printf("pmap "); 1055 #endif 1056 pmap_bootstrap(KERNEL_VM_BASE, KERNEL_VM_BASE + KERNEL_VM_SIZE); 1057 1058 #ifdef VERBOSE_INIT_ARM 1059 printf("\n"); 1060 #endif 1061 1062 #ifdef __HAVE_MEMORY_DISK__ 1063 md_root_setconf(memory_disk, sizeof memory_disk); 1064 #endif 1065 1066 #if NKSYMS || defined(DDB) || defined(MODULAR) 1067 /* Firmware doesn't load symbols. */ 1068 ddb_init(0, NULL, NULL); 1069 #endif 1070 1071 #ifdef KGDB 1072 if (boothowto & RB_KDB) { 1073 kgdb_debug_init = 1; 1074 kgdb_connect(1); 1075 } 1076 #endif 1077 1078 #ifdef DDB 1079 db_machine_init(); 1080 if (boothowto & RB_KDB) 1081 Debugger(); 1082 #endif 1083 1084 /* We return the new stack pointer address */ 1085 return (kernelstack.pv_va + USPACE_SVC_STACK_TOP); 1086 } 1087 1088 void * 1089 lookup_bootinfo(int type) 1090 { 1091 struct btinfo_common *help; 1092 int n; 1093 1094 if (bootinfo == NULL) 1095 return (NULL); 1096 1097 n = bootinfo->nentries; 1098 help = (struct btinfo_common *)(bootinfo->info); 1099 while (n--) { 1100 if (help->type == type) 1101 return (help); 1102 help = (struct btinfo_common *)((char *)help + help->len); 1103 } 1104 return (NULL); 1105 } 1106 1107 #ifdef KLOADER 1108 static int 1109 parseboot(char *arg, char **filename, int *howto) 1110 { 1111 char *opts = NULL; 1112 1113 *filename = NULL; 1114 *howto = 0; 1115 1116 /* if there were no arguments */ 1117 if (arg == NULL || *arg == '\0') 1118 return 1; 1119 1120 /* format is... */ 1121 /* [[xxNx:]filename] [-adqsv] */ 1122 1123 /* check for just args */ 1124 if (arg[0] == '-') { 1125 opts = arg; 1126 } else { 1127 /* there's a file name */ 1128 *filename = arg; 1129 1130 opts = gettrailer(arg); 1131 if (opts == NULL || *opts == '\0') { 1132 opts = NULL; 1133 } else if (*opts != '-') { 1134 printf("invalid arguments\n"); 1135 return 0; 1136 } 1137 } 1138 1139 /* at this point, we have dealt with filenames. */ 1140 1141 /* now, deal with options */ 1142 if (opts) { 1143 if (parseopts(opts, howto) == 0) { 1144 return 0; 1145 } 1146 } 1147 return 1; 1148 } 1149 1150 static char * 1151 gettrailer(char *arg) 1152 { 1153 static char nullstr[] = ""; 1154 char *options; 1155 1156 if ((options = strchr(arg, ' ')) == NULL) 1157 return nullstr; 1158 else 1159 *options++ = '\0'; 1160 1161 /* trim leading blanks */ 1162 while (*options && *options == ' ') 1163 options++; 1164 1165 return options; 1166 } 1167 1168 static int 1169 parseopts(const char *opts, int *howto) 1170 { 1171 int r, tmpopt = *howto; 1172 1173 opts++; /* skip - */ 1174 while (*opts && *opts != ' ') { 1175 r = 0; 1176 BOOT_FLAG(*opts, r); 1177 if (r == 0) { 1178 printf("-%c: unknown flag\n", *opts); 1179 return 0; 1180 } 1181 tmpopt |= r; 1182 opts++; 1183 } 1184 1185 *howto = tmpopt; 1186 return 1; 1187 } 1188 #endif 1189 1190 /* 1191 * Console 1192 */ 1193 #include "com.h" 1194 #if (NCOM > 0) 1195 #include <dev/ic/comvar.h> 1196 #endif 1197 1198 #include "lcd.h" 1199 #include "wsdisplay.h" 1200 1201 #ifndef CONSPEED 1202 #define CONSPEED B9600 1203 #endif 1204 #ifndef CONMODE 1205 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 1206 #endif 1207 1208 int comcnspeed = CONSPEED; 1209 int comcnmode = CONMODE; 1210 1211 #ifdef KGDB 1212 #ifndef KGDB_DEVNAME 1213 #define KGDB_DEVNAME "ffuart" 1214 #endif 1215 const char kgdb_devname[] = KGDB_DEVNAME; 1216 1217 #if (NCOM > 0) 1218 #ifndef KGDB_DEVMODE 1219 #define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 1220 #endif 1221 int comkgdbmode = KGDB_DEVMODE; 1222 #endif /* NCOM */ 1223 #endif /* KGDB */ 1224 1225 void 1226 consinit(void) 1227 { 1228 static int consinit_called = 0; 1229 #if (NCOM > 0) && defined(COM_PXA2X0) 1230 paddr_t paddr; 1231 u_int cken = 0; 1232 #endif 1233 1234 if (consinit_called) 1235 return; 1236 consinit_called = 1; 1237 1238 #if (NCOM > 0) && defined(COM_PXA2X0) 1239 #ifdef KGDB 1240 if (strcmp(kgdb_devname, console) == 0) { 1241 /* port is reserved for kgdb */ 1242 } else 1243 #endif 1244 if (strcmp(console, "ffuart") == 0) { 1245 paddr = PXA2X0_FFUART_BASE; 1246 cken = CKEN_FFUART; 1247 } else if (strcmp(console, "btuart") == 0) { 1248 paddr = PXA2X0_BTUART_BASE; 1249 cken = CKEN_BTUART; 1250 } else if (strcmp(console, "stuart") == 0) { 1251 paddr = PXA2X0_STUART_BASE; 1252 cken = CKEN_STUART; 1253 irda_on(0); 1254 } else 1255 #endif 1256 if (strcmp(console, "glass") == 0) { 1257 #if (NLCD > 0) && (NWSDISPLAY > 0) 1258 extern void lcd_cnattach(void); 1259 1260 glass_console = 1; 1261 lcd_cnattach(); 1262 #endif 1263 } 1264 1265 #if (NCOM > 0) && defined(COM_PXA2X0) 1266 if (cken != 0 && comcnattach(&pxa2x0_a4x_bs_tag, paddr, comcnspeed, 1267 PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode) == 0) { 1268 pxa2x0_clkman_config(cken, 1); 1269 } 1270 #endif 1271 } 1272 1273 #ifdef KGDB 1274 void 1275 kgdb_port_init(void) 1276 { 1277 #if (NCOM > 0) && defined(COM_PXA2X0) 1278 paddr_t paddr; 1279 u_int cken; 1280 1281 if (strcmp(kgdb_devname, "ffuart") == 0) { 1282 paddr = PXA2X0_FFUART_BASE; 1283 cken = CKEN_FFUART; 1284 } else if (strcmp(kgdb_devname, "btuart") == 0) { 1285 paddr = PXA2X0_BTUART_BASE; 1286 cken = CKEN_BTUART; 1287 } else if (strcmp(kgdb_devname, "stuart") == 0) { 1288 paddr = PXA2X0_STUART_BASE; 1289 cken = CKEN_STUART; 1290 irda_on(0); 1291 } else 1292 return; 1293 1294 if (com_kgdb_attach(&pxa2x0_a4x_bs_tag, paddr, 1295 kgdb_rate, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comkgdbmode) == 0) { 1296 pxa2x0_clkman_config(cken, 1); 1297 } 1298 #endif 1299 } 1300 #endif 1301