gumstix_machdep.c revision 1.41
1 /* $NetBSD: gumstix_machdep.c,v 1.41 2012/08/16 18:22:43 matt Exp $ */ 2 /* 3 * Copyright (C) 2005, 2006, 2007 WIDE Project and SOUM Corporation. 4 * All rights reserved. 5 * 6 * Written by Takashi Kiyohara and Susumu Miki for WIDE Project and SOUM 7 * Corporation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the project nor the name of SOUM Corporation 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT and SOUM CORPORATION ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT AND SOUM CORPORATION 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 /* 34 * Copyright (c) 2002, 2003, 2004, 2005 Genetec Corporation. 35 * All rights reserved. 36 * 37 * Written by Hiroyuki Bessho for Genetec Corporation. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. The name of Genetec Corporation may not be used to endorse or 48 * promote products derived from this software without specific prior 49 * written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND 52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 53 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 54 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORPORATION 55 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 56 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 57 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 58 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 59 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 60 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 61 * POSSIBILITY OF SUCH DAMAGE. 62 * 63 * Machine dependent functions for kernel setup for Genetec G4250EBX 64 * evaluation board. 65 * 66 * Based on iq80310_machhdep.c 67 */ 68 /* 69 * Copyright (c) 2001 Wasabi Systems, Inc. 70 * All rights reserved. 71 * 72 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 73 * 74 * Redistribution and use in source and binary forms, with or without 75 * modification, are permitted provided that the following conditions 76 * are met: 77 * 1. Redistributions of source code must retain the above copyright 78 * notice, this list of conditions and the following disclaimer. 79 * 2. Redistributions in binary form must reproduce the above copyright 80 * notice, this list of conditions and the following disclaimer in the 81 * documentation and/or other materials provided with the distribution. 82 * 3. All advertising materials mentioning features or use of this software 83 * must display the following acknowledgement: 84 * This product includes software developed for the NetBSD Project by 85 * Wasabi Systems, Inc. 86 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 87 * or promote products derived from this software without specific prior 88 * written permission. 89 * 90 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 91 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 92 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 93 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 94 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 95 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 96 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 97 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 98 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 99 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 100 * POSSIBILITY OF SUCH DAMAGE. 101 */ 102 103 /* 104 * Copyright (c) 1997,1998 Mark Brinicombe. 105 * Copyright (c) 1997,1998 Causality Limited. 106 * All rights reserved. 107 * 108 * Redistribution and use in source and binary forms, with or without 109 * modification, are permitted provided that the following conditions 110 * are met: 111 * 1. Redistributions of source code must retain the above copyright 112 * notice, this list of conditions and the following disclaimer. 113 * 2. Redistributions in binary form must reproduce the above copyright 114 * notice, this list of conditions and the following disclaimer in the 115 * documentation and/or other materials provided with the distribution. 116 * 3. All advertising materials mentioning features or use of this software 117 * must display the following acknowledgement: 118 * This product includes software developed by Mark Brinicombe 119 * for the NetBSD Project. 120 * 4. The name of the company nor the name of the author may be used to 121 * endorse or promote products derived from this software without specific 122 * prior written permission. 123 * 124 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 125 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 126 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 127 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 128 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 129 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 130 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 131 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 132 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 133 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 134 * SUCH DAMAGE. 135 * 136 * Machine dependent functions for kernel setup for Intel IQ80310 evaluation 137 * boards using RedBoot firmware. 138 */ 139 140 #include "opt_evbarm_boardtype.h" 141 #include "opt_cputypes.h" 142 #include "opt_gumstix.h" 143 #ifdef OVERO 144 #include "opt_omap.h" 145 #include "prcm.h" 146 #endif 147 #include "opt_ddb.h" 148 #include "opt_kgdb.h" 149 #include "opt_pmap_debug.h" 150 #include "opt_md.h" 151 #include "opt_modular.h" 152 #include "opt_com.h" 153 154 #include <sys/param.h> 155 #include <sys/conf.h> 156 #include <sys/device.h> 157 #include <sys/exec.h> 158 #include <sys/kernel.h> 159 #include <sys/ksyms.h> 160 #include <sys/msgbuf.h> 161 #include <sys/proc.h> 162 #include <sys/reboot.h> 163 #include <sys/systm.h> 164 #include <sys/termios.h> 165 166 #include <machine/autoconf.h> 167 #include <machine/bootconfig.h> 168 #include <sys/bus.h> 169 #include <machine/cpu.h> 170 #include <machine/db_machdep.h> 171 #include <machine/frame.h> 172 173 #include <arm/arm32/machdep.h> 174 #include <arm/omap/omap2_gpmcreg.h> 175 #include <arm/omap/omap2_prcm.h> 176 #include <arm/omap/omap2_reg.h> 177 #include <arm/omap/omap_var.h> 178 #include <arm/omap/omap_com.h> 179 #include <arm/undefined.h> 180 #include <arm/xscale/pxa2x0reg.h> 181 #include <arm/xscale/pxa2x0var.h> 182 #include <arm/xscale/pxa2x0_gpio.h> 183 #include <evbarm/gumstix/gumstixreg.h> 184 #include <evbarm/gumstix/gumstixvar.h> 185 186 #include <uvm/uvm_extern.h> 187 188 #include <dev/cons.h> 189 #include <dev/md.h> 190 191 #include <ddb/db_sym.h> 192 #include <ddb/db_extern.h> 193 #ifdef KGDB 194 #include <sys/kgdb.h> 195 #endif 196 197 /* Kernel text starts 2MB in from the bottom of the kernel address space. */ 198 #define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00200000) 199 #ifndef KERNEL_VM_BASE 200 #define KERNEL_VM_BASE (KERNEL_BASE + 0x01000000) 201 #endif 202 203 /* 204 * The range 0xc1000000 - 0xccffffff is available for kernel VM space 205 * Core-logic registers and I/O mappings occupy 0xfd000000 - 0xffffffff 206 */ 207 #define KERNEL_VM_SIZE 0x0C000000 208 209 BootConfig bootconfig; /* Boot config storage */ 210 static char bootargs[MAX_BOOT_STRING]; 211 const size_t bootargs_len = sizeof(bootargs) - 1; /* without nul */ 212 char *boot_args = NULL; 213 214 uint32_t system_serial_high; 215 uint32_t system_serial_low; 216 217 vm_offset_t physical_start; 218 vm_offset_t physical_freestart; 219 vm_offset_t physical_freeend; 220 vm_offset_t physical_end; 221 u_int free_pages; 222 223 /*int debug_flags;*/ 224 #ifndef PMAP_STATIC_L1S 225 int max_processes = 64; /* Default number */ 226 #endif /* !PMAP_STATIC_L1S */ 227 228 pv_addr_t minidataclean; 229 230 vm_offset_t msgbufphys; 231 232 #ifdef PMAP_DEBUG 233 extern int pmap_debug_level; 234 #endif 235 236 #define KERNEL_PT_SYS 0 /* Page table for mapping proc0 zero page */ 237 #define KERNEL_PT_KERNEL 1 /* Page table for mapping kernel */ 238 #define KERNEL_PT_KERNEL_NUM ((KERNEL_VM_BASE - KERNEL_BASE) >> 22) 239 #define KERNEL_PT_VMDATA (KERNEL_PT_KERNEL+KERNEL_PT_KERNEL_NUM) 240 /* Page tables for mapping kernel VM */ 241 #define KERNEL_PT_VMDATA_NUM 4 /* start with 16MB of KVM */ 242 #define NUM_KERNEL_PTS (KERNEL_PT_VMDATA + KERNEL_PT_VMDATA_NUM) 243 244 pv_addr_t kernel_pt_table[NUM_KERNEL_PTS]; 245 246 /* Prototypes */ 247 #if defined(GUMSTIX) 248 static void read_system_serial(void); 249 #endif 250 static void process_kernel_args(int, char *[]); 251 static void process_kernel_args_liner(char *); 252 #ifdef KGDB 253 static void kgdb_port_init(void); 254 #endif 255 static void gumstix_device_register(device_t, void *); 256 257 bs_protos(bs_notimpl); 258 259 #include "com.h" 260 #if NCOM > 0 261 #include <dev/ic/comreg.h> 262 #include <dev/ic/comvar.h> 263 #endif 264 265 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 266 #include "lcd.h" 267 #endif 268 269 #ifndef CONSPEED 270 #define CONSPEED B115200 /* It's a setting of the default of u-boot */ 271 #endif 272 #ifndef CONMODE 273 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 274 #endif 275 276 int comcnspeed = CONSPEED; 277 int comcnmode = CONMODE; 278 279 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 280 static char console[16]; 281 #endif 282 283 extern void gxio_config_pin(void); 284 extern void gxio_config_expansion(char *); 285 286 /* 287 * void cpu_reboot(int howto, char *bootstr) 288 * 289 * Deal with any syncing, unmounting, dumping and shutdown hooks, 290 * then reset the CPU. 291 */ 292 void 293 cpu_reboot(int howto, char *bootstr) 294 { 295 296 #ifdef DIAGNOSTIC 297 /* info */ 298 printf("boot: howto=%08x curproc=%p\n", howto, curproc); 299 #endif 300 301 /* 302 * If we are still cold then hit the air brakes 303 * and crash to earth fast 304 */ 305 if (cold) { 306 doshutdownhooks(); 307 pmf_system_shutdown(boothowto); 308 printf("The operating system has halted.\n"); 309 printf("Please press any key to reboot.\n\n"); 310 cngetc(); 311 printf("rebooting...\n"); 312 #if defined(OMAP_3530) && NPRCM > 0 313 prcm_cold_reset(); 314 #endif 315 cpu_reset(); 316 /*NOTREACHED*/ 317 } 318 319 /* 320 * If RB_NOSYNC was not specified sync the discs. 321 * Note: Unless cold is set to 1 here, syslogd will die during the 322 * unmount. It looks like syslogd is getting woken up only to find 323 * that it cannot page part of the binary in as the filesystem has 324 * been unmounted. 325 */ 326 if (!(howto & RB_NOSYNC)) 327 bootsync(); 328 329 /* Say NO to interrupts */ 330 splhigh(); 331 332 /* Do a dump if requested. */ 333 if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP) 334 dumpsys(); 335 336 /* Run any shutdown hooks */ 337 doshutdownhooks(); 338 339 pmf_system_shutdown(boothowto); 340 341 /* Make sure IRQ's are disabled */ 342 IRQdisable; 343 344 if (howto & RB_HALT) { 345 printf("The operating system has halted.\n"); 346 printf("Please press any key to reboot.\n\n"); 347 cngetc(); 348 } 349 350 printf("rebooting...\n"); 351 #if defined(OMAP_3530) && NPRCM > 0 352 prcm_cold_reset(); 353 #endif 354 cpu_reset(); 355 /*NOTREACHED*/ 356 } 357 358 static inline pd_entry_t * 359 read_ttb(void) 360 { 361 long ttb; 362 363 __asm volatile("mrc p15, 0, %0, c2, c0, 0" : "=r" (ttb)); 364 365 return (pd_entry_t *)(ttb & ~((1<<14)-1)); 366 } 367 368 /* 369 * Static device mappings. These peripheral registers are mapped at 370 * fixed virtual addresses very early in initarm() so that we can use 371 * them while booting the kernel, and stay at the same address 372 * throughout whole kernel's life time. 373 * 374 * We use this table twice; once with bootstrap page table, and once 375 * with kernel's page table which we build up in initarm(). 376 * 377 * Since we map these registers into the bootstrap page table using 378 * pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map 379 * registers segment-aligned and segment-rounded in order to avoid 380 * using the 2nd page tables. 381 */ 382 383 #define _A(a) ((a) & ~L1_S_OFFSET) 384 #define _S(s) (((s) + L1_S_SIZE - 1) & ~(L1_S_SIZE-1)) 385 386 static const struct pmap_devmap gumstix_devmap[] = { 387 #if defined(GUMSTIX) 388 { 389 GUMSTIX_GPIO_VBASE, 390 _A(PXA2X0_GPIO_BASE), 391 _S(PXA250_GPIO_SIZE), 392 VM_PROT_READ | VM_PROT_WRITE, 393 PTE_NOCACHE, 394 }, 395 { 396 GUMSTIX_CLKMAN_VBASE, 397 _A(PXA2X0_CLKMAN_BASE), 398 _S(PXA2X0_CLKMAN_SIZE), 399 VM_PROT_READ | VM_PROT_WRITE, 400 PTE_NOCACHE, 401 }, 402 { 403 GUMSTIX_INTCTL_VBASE, 404 _A(PXA2X0_INTCTL_BASE), 405 _S(PXA2X0_INTCTL_SIZE), 406 VM_PROT_READ | VM_PROT_WRITE, 407 PTE_NOCACHE, 408 }, 409 { 410 GUMSTIX_FFUART_VBASE, 411 _A(PXA2X0_FFUART_BASE), 412 _S(4 * COM_NPORTS), 413 VM_PROT_READ | VM_PROT_WRITE, 414 PTE_NOCACHE, 415 }, 416 { 417 GUMSTIX_STUART_VBASE, 418 _A(PXA2X0_STUART_BASE), 419 _S(4 * COM_NPORTS), 420 VM_PROT_READ | VM_PROT_WRITE, 421 PTE_NOCACHE, 422 }, 423 { 424 GUMSTIX_BTUART_VBASE, 425 _A(PXA2X0_BTUART_BASE), 426 _S(4 * COM_NPORTS), 427 VM_PROT_READ | VM_PROT_WRITE, 428 PTE_NOCACHE, 429 }, 430 { 431 GUMSTIX_HWUART_VBASE, 432 _A(PXA2X0_HWUART_BASE), 433 _S(4 * COM_NPORTS), 434 VM_PROT_READ | VM_PROT_WRITE, 435 PTE_NOCACHE, 436 }, 437 { 438 GUMSTIX_LCDC_VBASE, 439 _A(PXA2X0_LCDC_BASE), 440 _S(4 * COM_NPORTS), 441 VM_PROT_READ | VM_PROT_WRITE, 442 PTE_NOCACHE, 443 }, 444 #elif defined(OVERO) 445 { 446 OVERO_L4_PERIPHERAL_VBASE, 447 _A(OMAP3530_L4_PERIPHERAL_BASE), 448 _S(OMAP3530_L4_PERIPHERAL_SIZE), 449 VM_PROT_READ | VM_PROT_WRITE, 450 PTE_NOCACHE 451 }, 452 { 453 OVERO_GPMC_VBASE, 454 _A(GPMC_BASE), 455 _S(GPMC_SIZE), 456 VM_PROT_READ | VM_PROT_WRITE, 457 PTE_NOCACHE 458 }, 459 #endif 460 { 0, 0, 0, 0, 0 } 461 }; 462 463 #undef _A 464 #undef _S 465 466 467 /* 468 * u_int initarm(...) 469 * 470 * Initial entry point on startup. This gets called before main() is 471 * entered. 472 * It should be responsible for setting up everything that must be 473 * in place when main is called. 474 * This includes 475 * Taking a copy of the boot configuration structure. 476 * Initialising the physical console so characters can be printed. 477 * Setting up page tables for the kernel 478 * Relocating the kernel to the bottom of physical memory 479 */ 480 u_int 481 initarm(void *arg) 482 { 483 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 484 #ifdef DIAGNOSTIC 485 extern vsize_t xscale_minidata_clean_size; /* used in KASSERT */ 486 #endif 487 extern vaddr_t xscale_cache_clean_addr; 488 #endif 489 extern uint32_t *u_boot_args[]; 490 extern uint32_t ram_size; 491 enum { r0 = 0, r1 = 1, r2 = 2, r3 = 3 }; /* args from u-boot */ 492 int loop; 493 int loop1; 494 u_int l1pagetable; 495 paddr_t memstart; 496 psize_t memsize; 497 498 /* 499 * U-Boot doesn't use the virtual memory. 500 * 501 * Gumstix (basix, connex, verdex, verdex-pro): 502 * Physical Address Range Description 503 * ----------------------- ---------------------------------- 504 * 0x00000000 - 0x00ffffff flash Memory (16MB or 4MB) 505 * 0x40000000 - 0x480fffff Processor Registers 506 * 0xa0000000 - 0xa3ffffff SDRAM Bank 0 (64MB or 128MB) 507 * 508 * Overo: 509 * Physical Address Range Description 510 * ----------------------- ---------------------------------- 511 */ 512 513 /* 514 * Heads up ... Setup the CPU / MMU / TLB functions 515 */ 516 if (set_cpufuncs()) 517 panic("cpu not recognized!"); 518 519 /* map some peripheral registers at static I/O area */ 520 pmap_devmap_bootstrap((vaddr_t)read_ttb(), gumstix_devmap); 521 522 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 523 /* start 32.768kHz OSC */ 524 ioreg_write(GUMSTIX_CLKMAN_VBASE + CLKMAN_OSCC, OSCC_OON); 525 526 /* Get ready for splfoo() */ 527 pxa2x0_intr_bootstrap(GUMSTIX_INTCTL_VBASE); 528 529 /* setup GPIO for {FF,ST,HW}UART. */ 530 pxa2x0_gpio_bootstrap(GUMSTIX_GPIO_VBASE); 531 532 pxa2x0_clkman_bootstrap(GUMSTIX_CLKMAN_VBASE); 533 #elif defined(CPU_CORTEXA8) 534 { 535 void cortexa8_pmc_ccnt_init(void); 536 537 cortexa8_pmc_ccnt_init(); 538 } 539 #endif 540 541 cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT); 542 543 /* configure GPIOs. */ 544 gxio_config_pin(); 545 546 547 #ifndef GUMSTIX_NETBSD_ARGS_CONSOLE 548 consinit(); 549 #endif 550 #ifdef KGDB 551 kgdb_port_init(); 552 #endif 553 554 /* 555 * Examine the boot args string for options we need to know about 556 * now. 557 */ 558 #if defined(GUMSTIX) 559 #define SDRAM_START 0xa0000000UL 560 #elif defined(OVERO) 561 #define SDRAM_START 0x80000000UL 562 #endif 563 if (((uint32_t)u_boot_args[r0] & 0xf0000000) != SDRAM_START) 564 /* Maybe r0 is 'argc'. We are booted by command 'go'. */ 565 process_kernel_args((int)u_boot_args[r0], 566 (char **)u_boot_args[r1]); 567 else 568 /* 569 * Maybe r3 is 'boot args string' of 'bootm'. This string is 570 * linely. 571 */ 572 process_kernel_args_liner((char *)u_boot_args[r3]); 573 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 574 consinit(); 575 #endif 576 577 /* Talk to the user */ 578 #define BDSTR(s) _BDSTR(s) 579 #define _BDSTR(s) #s 580 printf("\nNetBSD/evbarm (" BDSTR(EVBARM_BOARDTYPE) ") booting ...\n"); 581 582 /* Read system serial */ 583 #if defined(GUMSTIX) 584 read_system_serial(); 585 #endif 586 587 memstart = SDRAM_START; 588 memsize = ram_size; 589 590 #ifdef VERBOSE_INIT_ARM 591 printf("initarm: Configuring system ...\n"); 592 #endif 593 594 /* Fake bootconfig structure for the benefit of pmap.c */ 595 /* XXX must make the memory description h/w independent */ 596 bootconfig.dramblocks = 1; 597 bootconfig.dram[0].address = memstart; 598 bootconfig.dram[0].pages = memsize / PAGE_SIZE; 599 600 /* 601 * Set up the variables that define the availablilty of 602 * physical memory. For now, we're going to set 603 * physical_freestart to 0xa0200000 (where the kernel 604 * was loaded), and allocate the memory we need downwards. 605 * If we get too close to the L1 table that we set up, we 606 * will panic. We will update physical_freestart and 607 * physical_freeend later to reflect what pmap_bootstrap() 608 * wants to see. 609 * 610 * XXX pmap_bootstrap() needs an enema. 611 */ 612 physical_start = bootconfig.dram[0].address; 613 physical_end = physical_start + memsize; 614 615 #if defined(GUMSTIX) 616 physical_freestart = 0xa0009000UL; 617 physical_freeend = 0xa0200000UL; 618 #elif defined(OVERO) 619 physical_freestart = 0x80009000UL; 620 physical_freeend = 0x80200000UL; 621 #endif 622 623 physmem = (physical_end - physical_start) / PAGE_SIZE; 624 625 #ifdef VERBOSE_INIT_ARM 626 /* Tell the user about the memory */ 627 printf("physmemory: %d pages at 0x%08lx -> 0x%08lx\n", physmem, 628 physical_start, physical_end - 1); 629 #endif 630 631 /* 632 * Okay, the kernel starts 2MB in from the bottom of physical 633 * memory. We are going to allocate our bootstrap pages downwards 634 * from there. 635 * 636 * We need to allocate some fixed page tables to get the kernel 637 * going. We allocate one page directory and a number of page 638 * tables and store the physical addresses in the kernel_pt_table 639 * array. 640 * 641 * The kernel page directory must be on a 16K boundary. The page 642 * tables must be on 4K bounaries. What we do is allocate the 643 * page directory on the first 16K boundary that we encounter, and 644 * the page tables on 4K boundaries otherwise. Since we allocate 645 * at least 3 L2 page tables, we are guaranteed to encounter at 646 * least one 16K aligned region. 647 */ 648 649 #ifdef VERBOSE_INIT_ARM 650 printf("Allocating page tables\n"); 651 #endif 652 653 free_pages = (physical_freeend - physical_freestart) / PAGE_SIZE; 654 655 #ifdef VERBOSE_INIT_ARM 656 printf("freestart = 0x%08lx, free_pages = %d (0x%08x)\n", 657 physical_freestart, free_pages, free_pages); 658 #endif 659 660 /* Define a macro to simplify memory allocation */ 661 #define valloc_pages(var, np) \ 662 alloc_pages((var).pv_pa, (np)); \ 663 (var).pv_va = KERNEL_BASE + (var).pv_pa - physical_start; 664 665 #define alloc_pages(var, np) \ 666 physical_freeend -= ((np) * PAGE_SIZE); \ 667 if (physical_freeend < physical_freestart) \ 668 panic("initarm: out of memory"); \ 669 (var) = physical_freeend; \ 670 free_pages -= (np); \ 671 memset((char *)(var), 0, ((np) * PAGE_SIZE)); 672 673 loop1 = 0; 674 for (loop = 0; loop <= NUM_KERNEL_PTS; ++loop) { 675 /* Are we 16KB aligned for an L1 ? */ 676 if ((physical_freeend & (L1_TABLE_SIZE - 1)) == 0 && 677 kernel_l1pt.pv_pa == 0) { 678 valloc_pages(kernel_l1pt, L1_TABLE_SIZE / PAGE_SIZE); 679 } else { 680 valloc_pages(kernel_pt_table[loop1], 681 L2_TABLE_SIZE / PAGE_SIZE); 682 ++loop1; 683 } 684 } 685 686 /* This should never be able to happen but better confirm that. */ 687 if (!kernel_l1pt.pv_pa || (kernel_l1pt.pv_pa & (L1_TABLE_SIZE-1)) != 0) 688 panic("initarm: Failed to align the kernel page directory"); 689 690 /* 691 * Allocate a page for the system page mapped to V0x00000000 692 * This page will just contain the system vectors and can be 693 * shared by all processes. 694 */ 695 alloc_pages(systempage.pv_pa, 1); 696 #if defined(CPU_CORTEXA8) 697 systempage.pv_va = ARM_VECTORS_HIGH; 698 #endif 699 700 /* Allocate stacks for all modes */ 701 valloc_pages(irqstack, IRQ_STACK_SIZE); 702 valloc_pages(abtstack, ABT_STACK_SIZE); 703 valloc_pages(undstack, UND_STACK_SIZE); 704 valloc_pages(kernelstack, UPAGES); 705 706 /* Allocate enough pages for cleaning the Mini-Data cache. */ 707 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 708 KASSERT(xscale_minidata_clean_size <= PAGE_SIZE); 709 #endif 710 valloc_pages(minidataclean, 1); 711 712 #ifdef VERBOSE_INIT_ARM 713 printf("IRQ stack: p0x%08lx v0x%08lx\n", irqstack.pv_pa, 714 irqstack.pv_va); 715 printf("ABT stack: p0x%08lx v0x%08lx\n", abtstack.pv_pa, 716 abtstack.pv_va); 717 printf("UND stack: p0x%08lx v0x%08lx\n", undstack.pv_pa, 718 undstack.pv_va); 719 printf("SVC stack: p0x%08lx v0x%08lx\n", kernelstack.pv_pa, 720 kernelstack.pv_va); 721 #endif 722 723 /* 724 * XXX Defer this to later so that we can reclaim the memory 725 * XXX used by the RedBoot page tables. 726 */ 727 alloc_pages(msgbufphys, round_page(MSGBUFSIZE) / PAGE_SIZE); 728 729 /* 730 * Ok we have allocated physical pages for the primary kernel 731 * page tables 732 */ 733 734 #ifdef VERBOSE_INIT_ARM 735 printf("Creating L1 page table at 0x%08lx\n", kernel_l1pt.pv_pa); 736 #endif 737 738 /* 739 * Now we start construction of the L1 page table 740 * We start by mapping the L2 page tables into the L1. 741 * This means that we can replace L1 mappings later on if necessary 742 */ 743 l1pagetable = kernel_l1pt.pv_va; 744 745 /* Map the L2 pages tables in the L1 page table */ 746 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 747 pmap_link_l2pt(l1pagetable, 0x00000000, 748 &kernel_pt_table[KERNEL_PT_SYS]); 749 #elif defined(CPU_CORTEXA8) 750 pmap_link_l2pt(l1pagetable, ARM_VECTORS_HIGH & ~(0x00400000 - 1), 751 &kernel_pt_table[KERNEL_PT_SYS]); 752 #endif 753 for (loop = 0; loop < KERNEL_PT_KERNEL_NUM; loop++) 754 pmap_link_l2pt(l1pagetable, KERNEL_BASE + loop * 0x00400000, 755 &kernel_pt_table[KERNEL_PT_KERNEL + loop]); 756 for (loop = 0; loop < KERNEL_PT_VMDATA_NUM; loop++) 757 pmap_link_l2pt(l1pagetable, KERNEL_VM_BASE + loop * 0x00400000, 758 &kernel_pt_table[KERNEL_PT_VMDATA + loop]); 759 760 /* update the top of the kernel VM */ 761 pmap_curmaxkvaddr = 762 KERNEL_VM_BASE + (KERNEL_PT_VMDATA_NUM * 0x00400000); 763 764 #ifdef VERBOSE_INIT_ARM 765 printf("Mapping kernel\n"); 766 #endif 767 768 /* Now we fill in the L2 pagetable for the kernel static code/data */ 769 { 770 extern char etext[], _end[]; 771 size_t textsize = (uintptr_t) etext - KERNEL_TEXT_BASE; 772 size_t totalsize = (uintptr_t) _end - KERNEL_TEXT_BASE; 773 u_int logical; 774 775 textsize = (textsize + PGOFSET) & ~PGOFSET; 776 totalsize = (totalsize + PGOFSET) & ~PGOFSET; 777 778 logical = 0x00200000; /* offset of kernel in RAM */ 779 780 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 781 physical_start + logical, textsize, 782 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 783 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 784 physical_start + logical, totalsize - textsize, 785 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 786 } 787 788 #ifdef VERBOSE_INIT_ARM 789 printf("Constructing L2 page tables\n"); 790 #endif 791 792 /* Map the stack pages */ 793 pmap_map_chunk(l1pagetable, irqstack.pv_va, irqstack.pv_pa, 794 IRQ_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 795 pmap_map_chunk(l1pagetable, abtstack.pv_va, abtstack.pv_pa, 796 ABT_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 797 pmap_map_chunk(l1pagetable, undstack.pv_va, undstack.pv_pa, 798 UND_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 799 pmap_map_chunk(l1pagetable, kernelstack.pv_va, kernelstack.pv_pa, 800 UPAGES * PAGE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_CACHE); 801 802 pmap_map_chunk(l1pagetable, kernel_l1pt.pv_va, kernel_l1pt.pv_pa, 803 L1_TABLE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_PAGETABLE); 804 805 for (loop = 0; loop < NUM_KERNEL_PTS; ++loop) { 806 pmap_map_chunk(l1pagetable, kernel_pt_table[loop].pv_va, 807 kernel_pt_table[loop].pv_pa, L2_TABLE_SIZE, 808 VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE); 809 } 810 811 /* Map the Mini-Data cache clean area. */ 812 #if defined(GUMSTIX) 813 xscale_setup_minidata(l1pagetable, minidataclean.pv_va, 814 minidataclean.pv_pa); 815 #endif 816 817 /* Map the vector page. */ 818 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 819 #if 1 820 /* MULTI-ICE requires that page 0 is NC/NB so that it can download the 821 * cache-clean code there. */ 822 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 823 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE); 824 #else 825 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 826 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 827 #endif 828 #elif defined(CPU_CORTEXA8) 829 pmap_map_entry(l1pagetable, ARM_VECTORS_HIGH, systempage.pv_pa, 830 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 831 #endif 832 833 /* 834 * map integrated peripherals at same address in l1pagetable 835 * so that we can continue to use console. 836 */ 837 pmap_devmap_bootstrap(l1pagetable, gumstix_devmap); 838 839 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 840 /* 841 * Give the XScale global cache clean code an appropriately 842 * sized chunk of unmapped VA space starting at 0xff000000 843 * (our device mappings end before this address). 844 */ 845 xscale_cache_clean_addr = 0xff000000U; 846 #endif 847 848 /* 849 * Now we have the real page tables in place so we can switch to them. 850 * Once this is done we will be running with the REAL kernel page 851 * tables. 852 */ 853 854 /* 855 * Update the physical_freestart/physical_freeend/free_pages 856 * variables. 857 */ 858 { 859 extern char _end[]; 860 861 physical_freestart = physical_start + 862 (((((uintptr_t) _end) + PGOFSET) & ~PGOFSET) - 863 KERNEL_BASE); 864 physical_freeend = physical_end; 865 free_pages = 866 (physical_freeend - physical_freestart) / PAGE_SIZE; 867 } 868 869 /* Switch tables */ 870 #ifdef VERBOSE_INIT_ARM 871 printf("freestart = 0x%08lx, free_pages = %d (0x%x)\n", 872 physical_freestart, free_pages, free_pages); 873 printf("switching to new L1 page table @%#lx...", kernel_l1pt.pv_pa); 874 #endif 875 876 cpu_setttb(kernel_l1pt.pv_pa); 877 cpu_tlb_flushID(); 878 cpu_domains(DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)); 879 880 /* 881 * Moved from cpu_startup() as data_abort_handler() references 882 * this during uvm init 883 */ 884 uvm_lwp_setuarea(&lwp0, kernelstack.pv_va); 885 886 #ifdef VERBOSE_INIT_ARM 887 printf("bootstrap done.\n"); 888 #endif 889 890 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 891 arm32_vector_init(ARM_VECTORS_LOW, ARM_VEC_ALL); 892 #elif defined(CPU_CORTEXA8) 893 arm32_vector_init(ARM_VECTORS_HIGH, ARM_VEC_ALL); 894 #endif 895 896 /* 897 * Pages were allocated during the secondary bootstrap for the 898 * stacks for different CPU modes. 899 * We must now set the r13 registers in the different CPU modes to 900 * point to these stacks. 901 * Since the ARM stacks use STMFD etc. we must set r13 to the top end 902 * of the stack memory. 903 */ 904 #ifdef VERBOSE_INIT_ARM 905 printf("init subsystems: stacks "); 906 #endif 907 908 set_stackptr(PSR_IRQ32_MODE, 909 irqstack.pv_va + IRQ_STACK_SIZE * PAGE_SIZE); 910 set_stackptr(PSR_ABT32_MODE, 911 abtstack.pv_va + ABT_STACK_SIZE * PAGE_SIZE); 912 set_stackptr(PSR_UND32_MODE, 913 undstack.pv_va + UND_STACK_SIZE * PAGE_SIZE); 914 915 /* 916 * Well we should set a data abort handler. 917 * Once things get going this will change as we will need a proper 918 * handler. 919 * Until then we will use a handler that just panics but tells us 920 * why. 921 * Initialisation of the vectors will just panic on a data abort. 922 * This just fills in a slighly better one. 923 */ 924 #ifdef VERBOSE_INIT_ARM 925 printf("vectors "); 926 #endif 927 data_abort_handler_address = (u_int)data_abort_handler; 928 prefetch_abort_handler_address = (u_int)prefetch_abort_handler; 929 undefined_handler_address = (u_int)undefinedinstruction_bounce; 930 931 /* Initialise the undefined instruction handlers */ 932 #ifdef VERBOSE_INIT_ARM 933 printf("undefined "); 934 #endif 935 undefined_init(); 936 937 /* Load memory into UVM. */ 938 #ifdef VERBOSE_INIT_ARM 939 printf("page "); 940 #endif 941 uvm_setpagesize(); /* initialize PAGE_SIZE-dependent variables */ 942 uvm_page_physload(atop(physical_freestart), atop(physical_freeend), 943 atop(physical_freestart), atop(physical_freeend), 944 VM_FREELIST_DEFAULT); 945 946 /* Boot strap pmap telling it where the kernel page table is */ 947 #ifdef VERBOSE_INIT_ARM 948 printf("pmap "); 949 #endif 950 pmap_bootstrap(KERNEL_VM_BASE, KERNEL_VM_BASE + KERNEL_VM_SIZE); 951 952 #ifdef __HAVE_MEMORY_DISK__ 953 md_root_setconf(memory_disk, sizeof memory_disk); 954 #endif 955 956 #ifdef BOOTHOWTO 957 boothowto |= BOOTHOWTO; 958 #endif 959 960 #ifdef KGDB 961 if (boothowto & RB_KDB) { 962 kgdb_debug_init = 1; 963 kgdb_connect(1); 964 } 965 #endif 966 967 #if NKSYMS || defined(DDB) || defined(MODULAR) 968 /* Firmware doesn't load symbols. */ 969 ddb_init(0, NULL, NULL); 970 #endif 971 972 #ifdef DDB 973 db_machine_init(); 974 if (boothowto & RB_KDB) 975 Debugger(); 976 #endif 977 978 /* We have our own device_register() */ 979 evbarm_device_register = gumstix_device_register; 980 981 /* We return the new stack pointer address */ 982 return(kernelstack.pv_va + USPACE_SVC_STACK_TOP); 983 } 984 985 #if defined(GUMSTIX) 986 static void 987 read_system_serial(void) 988 { 989 #define GUMSTIX_SYSTEM_SERIAL_ADDR 0 990 #define GUMSTIX_SYSTEM_SERIAL_SIZE 8 991 #define FLASH_OFFSET_INTEL_PROTECTION 0x81 992 #define FLASH_OFFSET_USER_PROTECTION 0x85 993 #define FLASH_CMD_READ_ID 0x90 994 #define FLASH_CMD_RESET 0xff 995 int i; 996 char system_serial[GUMSTIX_SYSTEM_SERIAL_SIZE], *src; 997 char x; 998 999 src = (char *)(FLASH_OFFSET_USER_PROTECTION * 2 /*word*/); 1000 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1001 memcpy(system_serial, 1002 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1003 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1004 1005 for (i = 1, x = system_serial[0]; i < sizeof (system_serial); i++) 1006 x &= system_serial[i]; 1007 if (x == 0xff) { 1008 src = (char *)(FLASH_OFFSET_INTEL_PROTECTION * 2 /*word*/); 1009 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1010 memcpy(system_serial, 1011 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1012 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1013 1014 /* 1015 * XXXX: Don't need ??? 1016 * gumstix_serial_hash(system_serial); 1017 */ 1018 } 1019 system_serial_high = system_serial[0] << 24 | system_serial[1] << 16 | 1020 system_serial[2] << 8 | system_serial[3]; 1021 system_serial_low = system_serial[4] << 24 | system_serial[5] << 16 | 1022 system_serial[6] << 8 | system_serial[7]; 1023 1024 printf("system serial: 0x"); 1025 for (i = 0; i < sizeof (system_serial); i++) 1026 printf("%02x", system_serial[i]); 1027 printf("\n"); 1028 } 1029 #endif 1030 1031 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1032 static const char busheader_name[] = "busheader="; 1033 #endif 1034 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1035 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1036 static const char expansion_name[] = "expansion="; 1037 #endif 1038 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1039 static const char console_name[] = "console="; 1040 #endif 1041 static void 1042 process_kernel_args(int argc, char *argv[]) 1043 { 1044 int gxio_configured = 0, i, j; 1045 1046 boothowto = 0; 1047 1048 for (i = 1, j = 0; i < argc; i++) { 1049 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1050 if (!strncmp(argv[i], busheader_name, strlen(busheader_name))) { 1051 /* Configure for GPIOs of busheader side */ 1052 gxio_config_expansion(argv[i] + strlen(busheader_name)); 1053 gxio_configured = 1; 1054 continue; 1055 } 1056 #endif 1057 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1058 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1059 if (!strncmp(argv[i], expansion_name, strlen(expansion_name))) { 1060 /* Configure expansion */ 1061 gxio_config_expansion(argv[i] + strlen(expansion_name)); 1062 gxio_configured = 1; 1063 continue; 1064 } 1065 #endif 1066 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1067 if (!strncmp(argv[i], console_name, strlen(console_name))) { 1068 strncpy(console, argv[i] + strlen(console_name), 1069 sizeof(console)); 1070 consinit(); 1071 } 1072 #endif 1073 if (j == bootargs_len) { 1074 *(bootargs + j) = '\0'; 1075 continue; 1076 } 1077 if (j != 0) 1078 *(bootargs + j++) = ' '; 1079 strncpy(bootargs + j, argv[i], bootargs_len - j); 1080 bootargs[bootargs_len] = '\0'; 1081 j += strlen(argv[i]); 1082 } 1083 boot_args = bootargs; 1084 1085 parse_mi_bootargs(boot_args); 1086 1087 if (!gxio_configured) 1088 gxio_config_expansion(NULL); 1089 } 1090 1091 static void 1092 process_kernel_args_liner(char *args) 1093 { 1094 int i = 0; 1095 char *p = NULL; 1096 1097 boothowto = 0; 1098 1099 strncpy(bootargs, args, sizeof(bootargs)); 1100 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1101 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1102 { 1103 char *q; 1104 1105 if ((p = strstr(bootargs, expansion_name))) 1106 q = p + strlen(expansion_name); 1107 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1108 else if ((p = strstr(bootargs, busheader_name))) 1109 q = p + strlen(busheader_name); 1110 #endif 1111 if (p) { 1112 char expansion[256], c; 1113 1114 i = 0; 1115 do { 1116 c = *(q + i); 1117 if (c == ' ') 1118 c = '\0'; 1119 expansion[i++] = c; 1120 } while (c != '\0' && i < sizeof(expansion)); 1121 gxio_config_expansion(expansion); 1122 strcpy(p, q + i); 1123 } 1124 } 1125 #endif 1126 if (p == NULL) 1127 gxio_config_expansion(NULL); 1128 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1129 p = strstr(bootargs, console_name); 1130 if (p != NULL) { 1131 char c; 1132 1133 i = 0; 1134 do { 1135 c = *(p + strlen(console_name) + i); 1136 if (c == ' ') 1137 c = '\0'; 1138 console[i++] = c; 1139 } while (c != '\0' && i < sizeof(console)); 1140 consinit(); 1141 strcpy(p, p + strlen(console_name) + i); 1142 } 1143 #endif 1144 boot_args = bootargs; 1145 1146 parse_mi_bootargs(boot_args); 1147 } 1148 1149 #ifdef KGDB 1150 #ifndef KGDB_DEVNAME 1151 #define KGDB_DEVNAME "ffuart" 1152 #endif 1153 const char kgdb_devname[] = KGDB_DEVNAME; 1154 1155 #ifndef KGDB_DEVRATE 1156 #define KGDB_DEVRATE CONSPEED 1157 #endif 1158 int kgdb_devrate = KGDB_DEVRATE; 1159 1160 #if (NCOM > 0) 1161 #ifndef KGDB_DEVMODE 1162 #define KGDB_DEVMODE CONMODE 1163 #endif 1164 int comkgdbmode = KGDB_DEVMODE; 1165 #endif /* NCOM */ 1166 1167 #endif /* KGDB */ 1168 1169 1170 void 1171 consinit(void) 1172 { 1173 static int consinit_called = 0; 1174 1175 if (consinit_called != 0) 1176 return; 1177 1178 consinit_called = 1; 1179 1180 #if NCOM > 0 1181 1182 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1183 /* Maybe passed Linux's bootargs 'console=ttyS?,<speed>...' */ 1184 if (strncmp(console, "ttyS", 4) == 0 && console[5] == ',') { 1185 int i; 1186 1187 comcnspeed = 0; 1188 for (i = 6; i < strlen(console) && isdigit(console[i]); i++) 1189 comcnspeed = comcnspeed * 10 + (console[i] - '0'); 1190 } 1191 #endif 1192 1193 #if defined(GUMSTIX) 1194 1195 #ifdef FFUARTCONSOLE 1196 #ifdef KGDB 1197 if (strcmp(kgdb_devname, "ffuart") == 0){ 1198 /* port is reserved for kgdb */ 1199 } else 1200 #endif 1201 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1202 if (console[0] == '\0' || strcasecmp(console, "ffuart") == 0 || 1203 strncmp(console, "ttyS0,", 6) == 0) 1204 #endif 1205 { 1206 int rv; 1207 1208 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_FFUART_BASE, 1209 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1210 if (rv == 0) { 1211 pxa2x0_clkman_config(CKEN_FFUART, 1); 1212 return; 1213 } 1214 } 1215 #endif /* FFUARTCONSOLE */ 1216 1217 #ifdef STUARTCONSOLE 1218 #ifdef KGDB 1219 if (strcmp(kgdb_devname, "stuart") == 0) { 1220 /* port is reserved for kgdb */ 1221 } else 1222 #endif 1223 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1224 if (console[0] == '\0' || strcasecmp(console, "stuart") == 0) 1225 #endif 1226 { 1227 int rv; 1228 1229 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_STUART_BASE, 1230 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1231 if (rv == 0) { 1232 pxa2x0_clkman_config(CKEN_STUART, 1); 1233 return; 1234 } 1235 } 1236 #endif /* STUARTCONSOLE */ 1237 1238 #ifdef BTUARTCONSOLE 1239 #ifdef KGDB 1240 if (strcmp(kgdb_devname, "btuart") == 0) { 1241 /* port is reserved for kgdb */ 1242 } else 1243 #endif 1244 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1245 if (console[0] == '\0' || strcasecmp(console, "btuart") == 0) 1246 #endif 1247 { 1248 int rv; 1249 1250 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_BTUART_BASE, 1251 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1252 if (rv == 0) { 1253 pxa2x0_clkman_config(CKEN_BTUART, 1); 1254 return; 1255 } 1256 } 1257 #endif /* BTUARTCONSOLE */ 1258 1259 #ifdef HWUARTCONSOLE 1260 #ifdef KGDB 1261 if (strcmp(kgdb_devname, "hwuart") == 0) { 1262 /* port is reserved for kgdb */ 1263 } else 1264 #endif 1265 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1266 if (console[0] == '\0' || strcasecmp(console, "hwuart") == 0) 1267 #endif 1268 { 1269 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_HWUART_BASE, 1270 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1271 if (rv == 0) { 1272 pxa2x0_clkman_config(CKEN_HWUART, 1); 1273 return; 1274 } 1275 } 1276 #endif /* HWUARTCONSOLE */ 1277 1278 #elif defined(OVERO) 1279 1280 if (comcnattach(&omap_a4x_bs_tag, 0x49020000, comcnspeed, 1281 OMAP_COM_FREQ, COM_TYPE_NORMAL, comcnmode) == 0) 1282 return; 1283 1284 #endif /* GUMSTIX or OVERO */ 1285 1286 #endif /* NCOM */ 1287 1288 #if NLCD > 0 1289 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1290 if (console[0] == '\0' || strcasecmp(console, "lcd") == 0) 1291 #endif 1292 { 1293 gxlcd_cnattach(); 1294 } 1295 #endif 1296 } 1297 1298 #ifdef KGDB 1299 static void 1300 kgdb_port_init(void) 1301 { 1302 #if (NCOM > 0) && defined(COM_PXA2X0) 1303 paddr_t paddr = 0; 1304 int cken = 0; 1305 1306 if (0 == strcmp(kgdb_devname, "ffuart")) { 1307 paddr = PXA2X0_FFUART_BASE; 1308 cken = CKEN_FFUART; 1309 } else if (0 == strcmp(kgdb_devname, "stuart")) { 1310 paddr = PXA2X0_STUART_BASE; 1311 cken = CKEN_STUART; 1312 } else if (0 == strcmp(kgdb_devname, "btuart")) { 1313 paddr = PXA2X0_BTUART_BASE; 1314 cken = CKEN_BTUART; 1315 } else if (0 == strcmp(kgdb_devname, "hwuart")) { 1316 paddr = PXA2X0_HWUART_BASE; 1317 cken = CKEN_HWUART; 1318 } 1319 1320 if (paddr && 1321 0 == com_kgdb_attach(&pxa2x0_a4x_bs_tag, paddr, 1322 kgdb_devrate, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comkgdbmode)) { 1323 1324 pxa2x0_clkman_config(cken, 1); 1325 } 1326 1327 #endif 1328 } 1329 #endif 1330 1331 static void 1332 gumstix_device_register(device_t dev, void *aux) 1333 { 1334 1335 if (device_is_a(dev, "ohci")) { 1336 if (prop_dictionary_set_bool(device_properties(dev), 1337 "Ganged-power-mask-on-port1", 1) == false) { 1338 printf("WARNING: unable to set power-mask for port1" 1339 " property for %s\n", dev->dv_xname); 1340 } 1341 if (prop_dictionary_set_bool(device_properties(dev), 1342 "Ganged-power-mask-on-port2", 1) == false) { 1343 printf("WARNING: unable to set power-mask for port2" 1344 " property for %s\n", dev->dv_xname); 1345 } 1346 if (prop_dictionary_set_bool(device_properties(dev), 1347 "Ganged-power-mask-on-port3", 1) == false) { 1348 printf("WARNING: unable to set power-mask for port3" 1349 " property for %s\n", dev->dv_xname); 1350 } 1351 } 1352 } 1353
Indexes created Tue Oct 28 12:10:06 GMT 2025