gumstix_machdep.c revision 1.36
1 /* $NetBSD: gumstix_machdep.c,v 1.36 2011/06/30 20:09:24 wiz 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 <machine/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 208 209 210 /* 211 * Address to call from cpu_reset() to reset the machine. 212 * This is machine architecture dependent as it varies depending 213 * on where the ROM appears when you turn the MMU off. 214 */ 215 216 u_int cpu_reset_address = 0; 217 218 /* Define various stack sizes in pages */ 219 #define IRQ_STACK_SIZE 1 220 #define ABT_STACK_SIZE 1 221 #define UND_STACK_SIZE 1 222 223 BootConfig bootconfig; /* Boot config storage */ 224 static char bootargs[MAX_BOOT_STRING]; 225 char *boot_args = NULL; 226 227 uint32_t system_serial_high; 228 uint32_t system_serial_low; 229 230 vm_offset_t physical_start; 231 vm_offset_t physical_freestart; 232 vm_offset_t physical_freeend; 233 vm_offset_t physical_end; 234 u_int free_pages; 235 236 /*int debug_flags;*/ 237 #ifndef PMAP_STATIC_L1S 238 int max_processes = 64; /* Default number */ 239 #endif /* !PMAP_STATIC_L1S */ 240 241 /* Physical and virtual addresses for some global pages */ 242 pv_addr_t irqstack; 243 pv_addr_t undstack; 244 pv_addr_t abtstack; 245 pv_addr_t kernelstack; 246 pv_addr_t minidataclean; 247 248 vm_offset_t msgbufphys; 249 250 extern u_int data_abort_handler_address; 251 extern u_int prefetch_abort_handler_address; 252 extern u_int undefined_handler_address; 253 254 #ifdef PMAP_DEBUG 255 extern int pmap_debug_level; 256 #endif 257 258 #define KERNEL_PT_SYS 0 /* Page table for mapping proc0 zero page */ 259 #define KERNEL_PT_KERNEL 1 /* Page table for mapping kernel */ 260 #define KERNEL_PT_KERNEL_NUM ((KERNEL_VM_BASE - KERNEL_BASE) >> 22) 261 #define KERNEL_PT_VMDATA (KERNEL_PT_KERNEL+KERNEL_PT_KERNEL_NUM) 262 /* Page tables for mapping kernel VM */ 263 #define KERNEL_PT_VMDATA_NUM 4 /* start with 16MB of KVM */ 264 #define NUM_KERNEL_PTS (KERNEL_PT_VMDATA + KERNEL_PT_VMDATA_NUM) 265 266 pv_addr_t kernel_pt_table[NUM_KERNEL_PTS]; 267 268 /* Prototypes */ 269 #if defined(GUMSTIX) 270 static void read_system_serial(void); 271 #endif 272 static void process_kernel_args(int, char *[]); 273 static void process_kernel_args_liner(char *); 274 #ifdef KGDB 275 static void kgdb_port_init(void); 276 #endif 277 static void gumstix_device_register(device_t, void *); 278 279 bs_protos(bs_notimpl); 280 281 #include "com.h" 282 #if NCOM > 0 283 #include <dev/ic/comreg.h> 284 #include <dev/ic/comvar.h> 285 #endif 286 287 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 288 #include "lcd.h" 289 #endif 290 291 #ifndef CONSPEED 292 #define CONSPEED B115200 /* It's a setting of the default of u-boot */ 293 #endif 294 #ifndef CONMODE 295 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 296 #endif 297 298 int comcnspeed = CONSPEED; 299 int comcnmode = CONMODE; 300 301 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 302 static char console[16]; 303 #endif 304 305 extern void gxio_config_pin(void); 306 extern void gxio_config_expansion(char *); 307 308 /* 309 * void cpu_reboot(int howto, char *bootstr) 310 * 311 * Deal with any syncing, unmounting, dumping and shutdown hooks, 312 * then reset the CPU. 313 */ 314 void 315 cpu_reboot(int howto, char *bootstr) 316 { 317 318 #ifdef DIAGNOSTIC 319 /* info */ 320 printf("boot: howto=%08x curproc=%p\n", howto, curproc); 321 #endif 322 323 /* 324 * If we are still cold then hit the air brakes 325 * and crash to earth fast 326 */ 327 if (cold) { 328 doshutdownhooks(); 329 pmf_system_shutdown(boothowto); 330 printf("The operating system has halted.\n"); 331 printf("Please press any key to reboot.\n\n"); 332 cngetc(); 333 printf("rebooting...\n"); 334 #if defined(OMAP_3530) && NPRCM > 0 335 prcm_cold_reset(); 336 #endif 337 cpu_reset(); 338 /*NOTREACHED*/ 339 } 340 341 /* 342 * If RB_NOSYNC was not specified sync the discs. 343 * Note: Unless cold is set to 1 here, syslogd will die during the 344 * unmount. It looks like syslogd is getting woken up only to find 345 * that it cannot page part of the binary in as the filesystem has 346 * been unmounted. 347 */ 348 if (!(howto & RB_NOSYNC)) 349 bootsync(); 350 351 /* Say NO to interrupts */ 352 splhigh(); 353 354 /* Do a dump if requested. */ 355 if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP) 356 dumpsys(); 357 358 /* Run any shutdown hooks */ 359 doshutdownhooks(); 360 361 pmf_system_shutdown(boothowto); 362 363 /* Make sure IRQ's are disabled */ 364 IRQdisable; 365 366 if (howto & RB_HALT) { 367 printf("The operating system has halted.\n"); 368 printf("Please press any key to reboot.\n\n"); 369 cngetc(); 370 } 371 372 printf("rebooting...\n"); 373 #if defined(OMAP_3530) && NPRCM > 0 374 prcm_cold_reset(); 375 #endif 376 cpu_reset(); 377 /*NOTREACHED*/ 378 } 379 380 static inline pd_entry_t * 381 read_ttb(void) 382 { 383 long ttb; 384 385 __asm volatile("mrc p15, 0, %0, c2, c0, 0" : "=r" (ttb)); 386 387 return (pd_entry_t *)(ttb & ~((1<<14)-1)); 388 } 389 390 /* 391 * Static device mappings. These peripheral registers are mapped at 392 * fixed virtual addresses very early in initarm() so that we can use 393 * them while booting the kernel, and stay at the same address 394 * throughout whole kernel's life time. 395 * 396 * We use this table twice; once with bootstrap page table, and once 397 * with kernel's page table which we build up in initarm(). 398 * 399 * Since we map these registers into the bootstrap page table using 400 * pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map 401 * registers segment-aligned and segment-rounded in order to avoid 402 * using the 2nd page tables. 403 */ 404 405 #define _A(a) ((a) & ~L1_S_OFFSET) 406 #define _S(s) (((s) + L1_S_SIZE - 1) & ~(L1_S_SIZE-1)) 407 408 static const struct pmap_devmap gumstix_devmap[] = { 409 #if defined(GUMSTIX) 410 { 411 GUMSTIX_GPIO_VBASE, 412 _A(PXA2X0_GPIO_BASE), 413 _S(PXA250_GPIO_SIZE), 414 VM_PROT_READ | VM_PROT_WRITE, 415 PTE_NOCACHE, 416 }, 417 { 418 GUMSTIX_CLKMAN_VBASE, 419 _A(PXA2X0_CLKMAN_BASE), 420 _S(PXA2X0_CLKMAN_SIZE), 421 VM_PROT_READ | VM_PROT_WRITE, 422 PTE_NOCACHE, 423 }, 424 { 425 GUMSTIX_INTCTL_VBASE, 426 _A(PXA2X0_INTCTL_BASE), 427 _S(PXA2X0_INTCTL_SIZE), 428 VM_PROT_READ | VM_PROT_WRITE, 429 PTE_NOCACHE, 430 }, 431 { 432 GUMSTIX_FFUART_VBASE, 433 _A(PXA2X0_FFUART_BASE), 434 _S(4 * COM_NPORTS), 435 VM_PROT_READ | VM_PROT_WRITE, 436 PTE_NOCACHE, 437 }, 438 { 439 GUMSTIX_STUART_VBASE, 440 _A(PXA2X0_STUART_BASE), 441 _S(4 * COM_NPORTS), 442 VM_PROT_READ | VM_PROT_WRITE, 443 PTE_NOCACHE, 444 }, 445 { 446 GUMSTIX_BTUART_VBASE, 447 _A(PXA2X0_BTUART_BASE), 448 _S(4 * COM_NPORTS), 449 VM_PROT_READ | VM_PROT_WRITE, 450 PTE_NOCACHE, 451 }, 452 { 453 GUMSTIX_HWUART_VBASE, 454 _A(PXA2X0_HWUART_BASE), 455 _S(4 * COM_NPORTS), 456 VM_PROT_READ | VM_PROT_WRITE, 457 PTE_NOCACHE, 458 }, 459 { 460 GUMSTIX_LCDC_VBASE, 461 _A(PXA2X0_LCDC_BASE), 462 _S(4 * COM_NPORTS), 463 VM_PROT_READ | VM_PROT_WRITE, 464 PTE_NOCACHE, 465 }, 466 #elif defined(OVERO) 467 { 468 OVERO_L4_PERIPHERAL_VBASE, 469 _A(OMAP3530_L4_PERIPHERAL_BASE), 470 _S(OMAP3530_L4_PERIPHERAL_SIZE), 471 VM_PROT_READ | VM_PROT_WRITE, 472 PTE_NOCACHE 473 }, 474 { 475 OVERO_GPMC_VBASE, 476 _A(GPMC_BASE), 477 _S(GPMC_SIZE), 478 VM_PROT_READ | VM_PROT_WRITE, 479 PTE_NOCACHE 480 }, 481 #endif 482 { 0, 0, 0, 0, 0 } 483 }; 484 485 #undef _A 486 #undef _S 487 488 489 /* 490 * u_int initarm(...) 491 * 492 * Initial entry point on startup. This gets called before main() is 493 * entered. 494 * It should be responsible for setting up everything that must be 495 * in place when main is called. 496 * This includes 497 * Taking a copy of the boot configuration structure. 498 * Initialising the physical console so characters can be printed. 499 * Setting up page tables for the kernel 500 * Relocating the kernel to the bottom of physical memory 501 */ 502 u_int 503 initarm(void *arg) 504 { 505 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 506 #ifdef DIAGNOSTIC 507 extern vsize_t xscale_minidata_clean_size; /* used in KASSERT */ 508 #endif 509 extern vaddr_t xscale_cache_clean_addr; 510 #endif 511 extern uint32_t *u_boot_args[]; 512 extern uint32_t ram_size; 513 enum { r0 = 0, r1 = 1, r2 = 2, r3 = 3 }; /* args from u-boot */ 514 int loop; 515 int loop1; 516 u_int l1pagetable; 517 paddr_t memstart; 518 psize_t memsize; 519 520 /* 521 * U-Boot doesn't use the virtual memory. 522 * 523 * Gumstix (basix, connex, verdex, verdex-pro): 524 * Physical Address Range Description 525 * ----------------------- ---------------------------------- 526 * 0x00000000 - 0x00ffffff flash Memory (16MB or 4MB) 527 * 0x40000000 - 0x480fffff Processor Registers 528 * 0xa0000000 - 0xa3ffffff SDRAM Bank 0 (64MB or 128MB) 529 * 530 * Overo: 531 * Physical Address Range Description 532 * ----------------------- ---------------------------------- 533 */ 534 535 /* 536 * Heads up ... Setup the CPU / MMU / TLB functions 537 */ 538 if (set_cpufuncs()) 539 panic("cpu not recognized!"); 540 541 /* map some peripheral registers at static I/O area */ 542 pmap_devmap_bootstrap((vaddr_t)read_ttb(), gumstix_devmap); 543 544 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 545 /* start 32.768kHz OSC */ 546 ioreg_write(GUMSTIX_CLKMAN_VBASE + CLKMAN_OSCC, OSCC_OON); 547 548 /* Get ready for splfoo() */ 549 pxa2x0_intr_bootstrap(GUMSTIX_INTCTL_VBASE); 550 551 /* setup GPIO for {FF,ST,HW}UART. */ 552 pxa2x0_gpio_bootstrap(GUMSTIX_GPIO_VBASE); 553 554 pxa2x0_clkman_bootstrap(GUMSTIX_CLKMAN_VBASE); 555 #elif defined(CPU_CORTEXA8) 556 { 557 void cortexa8_pmc_ccnt_init(void); 558 559 cortexa8_pmc_ccnt_init(); 560 } 561 #endif 562 563 cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT); 564 565 /* configure GPIOs. */ 566 gxio_config_pin(); 567 568 569 #ifndef GUMSTIX_NETBSD_ARGS_CONSOLE 570 consinit(); 571 #endif 572 #ifdef KGDB 573 kgdb_port_init(); 574 #endif 575 576 /* 577 * Examine the boot args string for options we need to know about 578 * now. 579 */ 580 #if defined(GUMSTIX) 581 #define SDRAM_START 0xa0000000UL 582 #elif defined(OVERO) 583 #define SDRAM_START 0x80000000UL 584 #endif 585 if (((uint32_t)u_boot_args[r0] & 0xf0000000) != SDRAM_START) 586 /* Maybe r0 is 'argc'. We are booted by command 'go'. */ 587 process_kernel_args((int)u_boot_args[r0], 588 (char **)u_boot_args[r1]); 589 else 590 /* 591 * Maybe r3 is 'boot args string' of 'bootm'. This string is 592 * linely. 593 */ 594 process_kernel_args_liner((char *)u_boot_args[r3]); 595 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 596 consinit(); 597 #endif 598 599 /* Talk to the user */ 600 #define BDSTR(s) _BDSTR(s) 601 #define _BDSTR(s) #s 602 printf("\nNetBSD/evbarm (" BDSTR(EVBARM_BOARDTYPE) ") booting ...\n"); 603 604 /* Read system serial */ 605 #if defined(GUMSTIX) 606 read_system_serial(); 607 #endif 608 609 memstart = SDRAM_START; 610 memsize = ram_size; 611 612 #ifdef VERBOSE_INIT_ARM 613 printf("initarm: Configuring system ...\n"); 614 #endif 615 616 /* Fake bootconfig structure for the benefit of pmap.c */ 617 /* XXX must make the memory description h/w independent */ 618 bootconfig.dramblocks = 1; 619 bootconfig.dram[0].address = memstart; 620 bootconfig.dram[0].pages = memsize / PAGE_SIZE; 621 622 /* 623 * Set up the variables that define the availablilty of 624 * physical memory. For now, we're going to set 625 * physical_freestart to 0xa0200000 (where the kernel 626 * was loaded), and allocate the memory we need downwards. 627 * If we get too close to the L1 table that we set up, we 628 * will panic. We will update physical_freestart and 629 * physical_freeend later to reflect what pmap_bootstrap() 630 * wants to see. 631 * 632 * XXX pmap_bootstrap() needs an enema. 633 */ 634 physical_start = bootconfig.dram[0].address; 635 physical_end = physical_start + memsize; 636 637 #if defined(GUMSTIX) 638 physical_freestart = 0xa0009000UL; 639 physical_freeend = 0xa0200000UL; 640 #elif defined(OVERO) 641 physical_freestart = 0x80009000UL; 642 physical_freeend = 0x80200000UL; 643 #endif 644 645 physmem = (physical_end - physical_start) / PAGE_SIZE; 646 647 #ifdef VERBOSE_INIT_ARM 648 /* Tell the user about the memory */ 649 printf("physmemory: %d pages at 0x%08lx -> 0x%08lx\n", physmem, 650 physical_start, physical_end - 1); 651 #endif 652 653 /* 654 * Okay, the kernel starts 2MB in from the bottom of physical 655 * memory. We are going to allocate our bootstrap pages downwards 656 * from there. 657 * 658 * We need to allocate some fixed page tables to get the kernel 659 * going. We allocate one page directory and a number of page 660 * tables and store the physical addresses in the kernel_pt_table 661 * array. 662 * 663 * The kernel page directory must be on a 16K boundary. The page 664 * tables must be on 4K bounaries. What we do is allocate the 665 * page directory on the first 16K boundary that we encounter, and 666 * the page tables on 4K boundaries otherwise. Since we allocate 667 * at least 3 L2 page tables, we are guaranteed to encounter at 668 * least one 16K aligned region. 669 */ 670 671 #ifdef VERBOSE_INIT_ARM 672 printf("Allocating page tables\n"); 673 #endif 674 675 free_pages = (physical_freeend - physical_freestart) / PAGE_SIZE; 676 677 #ifdef VERBOSE_INIT_ARM 678 printf("freestart = 0x%08lx, free_pages = %d (0x%08x)\n", 679 physical_freestart, free_pages, free_pages); 680 #endif 681 682 /* Define a macro to simplify memory allocation */ 683 #define valloc_pages(var, np) \ 684 alloc_pages((var).pv_pa, (np)); \ 685 (var).pv_va = KERNEL_BASE + (var).pv_pa - physical_start; 686 687 #define alloc_pages(var, np) \ 688 physical_freeend -= ((np) * PAGE_SIZE); \ 689 if (physical_freeend < physical_freestart) \ 690 panic("initarm: out of memory"); \ 691 (var) = physical_freeend; \ 692 free_pages -= (np); \ 693 memset((char *)(var), 0, ((np) * PAGE_SIZE)); 694 695 loop1 = 0; 696 for (loop = 0; loop <= NUM_KERNEL_PTS; ++loop) { 697 /* Are we 16KB aligned for an L1 ? */ 698 if ((physical_freeend & (L1_TABLE_SIZE - 1)) == 0 && 699 kernel_l1pt.pv_pa == 0) { 700 valloc_pages(kernel_l1pt, L1_TABLE_SIZE / PAGE_SIZE); 701 } else { 702 valloc_pages(kernel_pt_table[loop1], 703 L2_TABLE_SIZE / PAGE_SIZE); 704 ++loop1; 705 } 706 } 707 708 /* This should never be able to happen but better confirm that. */ 709 if (!kernel_l1pt.pv_pa || (kernel_l1pt.pv_pa & (L1_TABLE_SIZE-1)) != 0) 710 panic("initarm: Failed to align the kernel page directory"); 711 712 /* 713 * Allocate a page for the system page mapped to V0x00000000 714 * This page will just contain the system vectors and can be 715 * shared by all processes. 716 */ 717 alloc_pages(systempage.pv_pa, 1); 718 #if defined(CPU_CORTEXA8) 719 systempage.pv_va = ARM_VECTORS_HIGH; 720 #endif 721 722 /* Allocate stacks for all modes */ 723 valloc_pages(irqstack, IRQ_STACK_SIZE); 724 valloc_pages(abtstack, ABT_STACK_SIZE); 725 valloc_pages(undstack, UND_STACK_SIZE); 726 valloc_pages(kernelstack, UPAGES); 727 728 /* Allocate enough pages for cleaning the Mini-Data cache. */ 729 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 730 KASSERT(xscale_minidata_clean_size <= PAGE_SIZE); 731 #endif 732 valloc_pages(minidataclean, 1); 733 734 #ifdef VERBOSE_INIT_ARM 735 printf("IRQ stack: p0x%08lx v0x%08lx\n", irqstack.pv_pa, 736 irqstack.pv_va); 737 printf("ABT stack: p0x%08lx v0x%08lx\n", abtstack.pv_pa, 738 abtstack.pv_va); 739 printf("UND stack: p0x%08lx v0x%08lx\n", undstack.pv_pa, 740 undstack.pv_va); 741 printf("SVC stack: p0x%08lx v0x%08lx\n", kernelstack.pv_pa, 742 kernelstack.pv_va); 743 #endif 744 745 /* 746 * XXX Defer this to later so that we can reclaim the memory 747 * XXX used by the RedBoot page tables. 748 */ 749 alloc_pages(msgbufphys, round_page(MSGBUFSIZE) / PAGE_SIZE); 750 751 /* 752 * Ok we have allocated physical pages for the primary kernel 753 * page tables 754 */ 755 756 #ifdef VERBOSE_INIT_ARM 757 printf("Creating L1 page table at 0x%08lx\n", kernel_l1pt.pv_pa); 758 #endif 759 760 /* 761 * Now we start construction of the L1 page table 762 * We start by mapping the L2 page tables into the L1. 763 * This means that we can replace L1 mappings later on if necessary 764 */ 765 l1pagetable = kernel_l1pt.pv_va; 766 767 /* Map the L2 pages tables in the L1 page table */ 768 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 769 pmap_link_l2pt(l1pagetable, 0x00000000, 770 &kernel_pt_table[KERNEL_PT_SYS]); 771 #elif defined(CPU_CORTEXA8) 772 pmap_link_l2pt(l1pagetable, ARM_VECTORS_HIGH & ~(0x00400000 - 1), 773 &kernel_pt_table[KERNEL_PT_SYS]); 774 #endif 775 for (loop = 0; loop < KERNEL_PT_KERNEL_NUM; loop++) 776 pmap_link_l2pt(l1pagetable, KERNEL_BASE + loop * 0x00400000, 777 &kernel_pt_table[KERNEL_PT_KERNEL + loop]); 778 for (loop = 0; loop < KERNEL_PT_VMDATA_NUM; loop++) 779 pmap_link_l2pt(l1pagetable, KERNEL_VM_BASE + loop * 0x00400000, 780 &kernel_pt_table[KERNEL_PT_VMDATA + loop]); 781 782 /* update the top of the kernel VM */ 783 pmap_curmaxkvaddr = 784 KERNEL_VM_BASE + (KERNEL_PT_VMDATA_NUM * 0x00400000); 785 786 #ifdef VERBOSE_INIT_ARM 787 printf("Mapping kernel\n"); 788 #endif 789 790 /* Now we fill in the L2 pagetable for the kernel static code/data */ 791 { 792 extern char etext[], _end[]; 793 size_t textsize = (uintptr_t) etext - KERNEL_TEXT_BASE; 794 size_t totalsize = (uintptr_t) _end - KERNEL_TEXT_BASE; 795 u_int logical; 796 797 textsize = (textsize + PGOFSET) & ~PGOFSET; 798 totalsize = (totalsize + PGOFSET) & ~PGOFSET; 799 800 logical = 0x00200000; /* offset of kernel in RAM */ 801 802 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 803 physical_start + logical, textsize, 804 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 805 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 806 physical_start + logical, totalsize - textsize, 807 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 808 } 809 810 #ifdef VERBOSE_INIT_ARM 811 printf("Constructing L2 page tables\n"); 812 #endif 813 814 /* Map the stack pages */ 815 pmap_map_chunk(l1pagetable, irqstack.pv_va, irqstack.pv_pa, 816 IRQ_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 817 pmap_map_chunk(l1pagetable, abtstack.pv_va, abtstack.pv_pa, 818 ABT_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 819 pmap_map_chunk(l1pagetable, undstack.pv_va, undstack.pv_pa, 820 UND_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 821 pmap_map_chunk(l1pagetable, kernelstack.pv_va, kernelstack.pv_pa, 822 UPAGES * PAGE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_CACHE); 823 824 pmap_map_chunk(l1pagetable, kernel_l1pt.pv_va, kernel_l1pt.pv_pa, 825 L1_TABLE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_PAGETABLE); 826 827 for (loop = 0; loop < NUM_KERNEL_PTS; ++loop) { 828 pmap_map_chunk(l1pagetable, kernel_pt_table[loop].pv_va, 829 kernel_pt_table[loop].pv_pa, L2_TABLE_SIZE, 830 VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE); 831 } 832 833 /* Map the Mini-Data cache clean area. */ 834 #if defined(GUMSTIX) 835 xscale_setup_minidata(l1pagetable, minidataclean.pv_va, 836 minidataclean.pv_pa); 837 #endif 838 839 /* Map the vector page. */ 840 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 841 #if 1 842 /* MULTI-ICE requires that page 0 is NC/NB so that it can download the 843 * cache-clean code there. */ 844 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 845 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE); 846 #else 847 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 848 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 849 #endif 850 #elif defined(CPU_CORTEXA8) 851 pmap_map_entry(l1pagetable, ARM_VECTORS_HIGH, systempage.pv_pa, 852 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 853 #endif 854 855 /* 856 * map integrated peripherals at same address in l1pagetable 857 * so that we can continue to use console. 858 */ 859 pmap_devmap_bootstrap(l1pagetable, gumstix_devmap); 860 861 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 862 /* 863 * Give the XScale global cache clean code an appropriately 864 * sized chunk of unmapped VA space starting at 0xff000000 865 * (our device mappings end before this address). 866 */ 867 xscale_cache_clean_addr = 0xff000000U; 868 #endif 869 870 /* 871 * Now we have the real page tables in place so we can switch to them. 872 * Once this is done we will be running with the REAL kernel page 873 * tables. 874 */ 875 876 /* 877 * Update the physical_freestart/physical_freeend/free_pages 878 * variables. 879 */ 880 { 881 extern char _end[]; 882 883 physical_freestart = physical_start + 884 (((((uintptr_t) _end) + PGOFSET) & ~PGOFSET) - 885 KERNEL_BASE); 886 physical_freeend = physical_end; 887 free_pages = 888 (physical_freeend - physical_freestart) / PAGE_SIZE; 889 } 890 891 /* Switch tables */ 892 #ifdef VERBOSE_INIT_ARM 893 printf("freestart = 0x%08lx, free_pages = %d (0x%x)\n", 894 physical_freestart, free_pages, free_pages); 895 printf("switching to new L1 page table @%#lx...", kernel_l1pt.pv_pa); 896 #endif 897 898 cpu_setttb(kernel_l1pt.pv_pa); 899 cpu_tlb_flushID(); 900 cpu_domains(DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)); 901 902 /* 903 * Moved from cpu_startup() as data_abort_handler() references 904 * this during uvm init 905 */ 906 uvm_lwp_setuarea(&lwp0, kernelstack.pv_va); 907 908 #ifdef VERBOSE_INIT_ARM 909 printf("bootstrap done.\n"); 910 #endif 911 912 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 913 arm32_vector_init(ARM_VECTORS_LOW, ARM_VEC_ALL); 914 #elif defined(CPU_CORTEXA8) 915 arm32_vector_init(ARM_VECTORS_HIGH, ARM_VEC_ALL); 916 #endif 917 918 /* 919 * Pages were allocated during the secondary bootstrap for the 920 * stacks for different CPU modes. 921 * We must now set the r13 registers in the different CPU modes to 922 * point to these stacks. 923 * Since the ARM stacks use STMFD etc. we must set r13 to the top end 924 * of the stack memory. 925 */ 926 #ifdef VERBOSE_INIT_ARM 927 printf("init subsystems: stacks "); 928 #endif 929 930 set_stackptr(PSR_IRQ32_MODE, 931 irqstack.pv_va + IRQ_STACK_SIZE * PAGE_SIZE); 932 set_stackptr(PSR_ABT32_MODE, 933 abtstack.pv_va + ABT_STACK_SIZE * PAGE_SIZE); 934 set_stackptr(PSR_UND32_MODE, 935 undstack.pv_va + UND_STACK_SIZE * PAGE_SIZE); 936 937 /* 938 * Well we should set a data abort handler. 939 * Once things get going this will change as we will need a proper 940 * handler. 941 * Until then we will use a handler that just panics but tells us 942 * why. 943 * Initialisation of the vectors will just panic on a data abort. 944 * This just fills in a slighly better one. 945 */ 946 #ifdef VERBOSE_INIT_ARM 947 printf("vectors "); 948 #endif 949 data_abort_handler_address = (u_int)data_abort_handler; 950 prefetch_abort_handler_address = (u_int)prefetch_abort_handler; 951 undefined_handler_address = (u_int)undefinedinstruction_bounce; 952 953 /* Initialise the undefined instruction handlers */ 954 #ifdef VERBOSE_INIT_ARM 955 printf("undefined "); 956 #endif 957 undefined_init(); 958 959 /* Load memory into UVM. */ 960 #ifdef VERBOSE_INIT_ARM 961 printf("page "); 962 #endif 963 uvm_setpagesize(); /* initialize PAGE_SIZE-dependent variables */ 964 uvm_page_physload(atop(physical_freestart), atop(physical_freeend), 965 atop(physical_freestart), atop(physical_freeend), 966 VM_FREELIST_DEFAULT); 967 968 /* Boot strap pmap telling it where the kernel page table is */ 969 #ifdef VERBOSE_INIT_ARM 970 printf("pmap "); 971 #endif 972 pmap_bootstrap(KERNEL_VM_BASE, KERNEL_VM_BASE + KERNEL_VM_SIZE); 973 974 #ifdef __HAVE_MEMORY_DISK__ 975 md_root_setconf(memory_disk, sizeof memory_disk); 976 #endif 977 978 #ifdef BOOTHOWTO 979 boothowto |= BOOTHOWTO; 980 #endif 981 982 #ifdef KGDB 983 if (boothowto & RB_KDB) { 984 kgdb_debug_init = 1; 985 kgdb_connect(1); 986 } 987 #endif 988 989 #if NKSYMS || defined(DDB) || defined(MODULAR) 990 /* Firmware doesn't load symbols. */ 991 ddb_init(0, NULL, NULL); 992 #endif 993 994 #ifdef DDB 995 db_machine_init(); 996 if (boothowto & RB_KDB) 997 Debugger(); 998 #endif 999 1000 /* We have our own device_register() */ 1001 evbarm_device_register = gumstix_device_register; 1002 1003 /* We return the new stack pointer address */ 1004 return(kernelstack.pv_va + USPACE_SVC_STACK_TOP); 1005 } 1006 1007 #if defined(GUMSTIX) 1008 static void 1009 read_system_serial(void) 1010 { 1011 #define GUMSTIX_SYSTEM_SERIAL_ADDR 0 1012 #define GUMSTIX_SYSTEM_SERIAL_SIZE 8 1013 #define FLASH_OFFSET_INTEL_PROTECTION 0x81 1014 #define FLASH_OFFSET_USER_PROTECTION 0x85 1015 #define FLASH_CMD_READ_ID 0x90 1016 #define FLASH_CMD_RESET 0xff 1017 int i; 1018 char system_serial[GUMSTIX_SYSTEM_SERIAL_SIZE], *src; 1019 char x; 1020 1021 src = (char *)(FLASH_OFFSET_USER_PROTECTION * 2 /*word*/); 1022 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1023 memcpy(system_serial, 1024 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1025 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1026 1027 for (i = 1, x = system_serial[0]; i < sizeof (system_serial); i++) 1028 x &= system_serial[i]; 1029 if (x == 0xff) { 1030 src = (char *)(FLASH_OFFSET_INTEL_PROTECTION * 2 /*word*/); 1031 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1032 memcpy(system_serial, 1033 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1034 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1035 1036 /* 1037 * XXXX: Don't need ??? 1038 * gumstix_serial_hash(system_serial); 1039 */ 1040 } 1041 system_serial_high = system_serial[0] << 24 | system_serial[1] << 16 | 1042 system_serial[2] << 8 | system_serial[3]; 1043 system_serial_low = system_serial[4] << 24 | system_serial[5] << 16 | 1044 system_serial[6] << 8 | system_serial[7]; 1045 1046 printf("system serial: 0x"); 1047 for (i = 0; i < sizeof (system_serial); i++) 1048 printf("%02x", system_serial[i]); 1049 printf("\n"); 1050 } 1051 #endif 1052 1053 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1054 static const char busheader_name[] = "busheader="; 1055 #endif 1056 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1057 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1058 static const char expansion_name[] = "expansion="; 1059 #endif 1060 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1061 static const char console_name[] = "console="; 1062 #endif 1063 static void 1064 process_kernel_args(int argc, char *argv[]) 1065 { 1066 int gxio_configured = 0, i, j; 1067 1068 boothowto = 0; 1069 1070 for (i = 1, j = 0; i < argc; i++) { 1071 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1072 if (!strncmp(argv[i], busheader_name, strlen(busheader_name))) { 1073 /* Configure for GPIOs of busheader side */ 1074 gxio_config_expansion(argv[i] + strlen(busheader_name)); 1075 gxio_configured = 1; 1076 continue; 1077 } 1078 #endif 1079 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1080 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1081 if (!strncmp(argv[i], expansion_name, strlen(expansion_name))) { 1082 /* Configure expansion */ 1083 gxio_config_expansion(argv[i] + strlen(expansion_name)); 1084 gxio_configured = 1; 1085 continue; 1086 } 1087 #endif 1088 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1089 if (!strncmp(argv[i], console_name, strlen(console_name))) { 1090 strncpy(console, argv[i] + strlen(console_name), 1091 sizeof(console)); 1092 consinit(); 1093 } 1094 #endif 1095 if (j == MAX_BOOT_STRING) { 1096 *(bootargs + j) = '\0'; 1097 continue; 1098 } 1099 if (j != 0) 1100 *(bootargs + j++) = ' '; 1101 strncpy(bootargs + j, argv[i], MAX_BOOT_STRING - j); 1102 j += strlen(argv[i]); 1103 } 1104 boot_args = bootargs; 1105 1106 parse_mi_bootargs(boot_args); 1107 1108 if (!gxio_configured) 1109 gxio_config_expansion(NULL); 1110 } 1111 1112 static void 1113 process_kernel_args_liner(char *args) 1114 { 1115 int i = 0; 1116 char *p = NULL; 1117 1118 boothowto = 0; 1119 1120 strncpy(bootargs, args, sizeof(bootargs)); 1121 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1122 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1123 { 1124 char *q; 1125 1126 if ((p = strstr(bootargs, expansion_name))) 1127 q = p + strlen(expansion_name); 1128 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1129 else if ((p = strstr(bootargs, busheader_name))) 1130 q = p + strlen(busheader_name); 1131 #endif 1132 if (p) { 1133 char expansion[256], c; 1134 1135 i = 0; 1136 do { 1137 c = *(q + i); 1138 if (c == ' ') 1139 c = '\0'; 1140 expansion[i++] = c; 1141 } while (c != '\0' && i < sizeof(expansion)); 1142 gxio_config_expansion(expansion); 1143 strcpy(p, q + i); 1144 } 1145 } 1146 #endif 1147 if (p == NULL) 1148 gxio_config_expansion(NULL); 1149 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1150 p = strstr(bootargs, console_name); 1151 if (p != NULL) { 1152 char c; 1153 1154 i = 0; 1155 do { 1156 c = *(p + strlen(console_name) + i); 1157 if (c == ' ') 1158 c = '\0'; 1159 console[i++] = c; 1160 } while (c != '\0' && i < sizeof(console)); 1161 consinit(); 1162 strcpy(p, p + strlen(console_name) + i); 1163 } 1164 #endif 1165 boot_args = bootargs; 1166 1167 parse_mi_bootargs(boot_args); 1168 } 1169 1170 #ifdef KGDB 1171 #ifndef KGDB_DEVNAME 1172 #define KGDB_DEVNAME "ffuart" 1173 #endif 1174 const char kgdb_devname[] = KGDB_DEVNAME; 1175 1176 #ifndef KGDB_DEVRATE 1177 #define KGDB_DEVRATE CONSPEED 1178 #endif 1179 int kgdb_devrate = KGDB_DEVRATE; 1180 1181 #if (NCOM > 0) 1182 #ifndef KGDB_DEVMODE 1183 #define KGDB_DEVMODE CONMODE 1184 #endif 1185 int comkgdbmode = KGDB_DEVMODE; 1186 #endif /* NCOM */ 1187 1188 #endif /* KGDB */ 1189 1190 1191 void 1192 consinit(void) 1193 { 1194 static int consinit_called = 0; 1195 1196 if (consinit_called != 0) 1197 return; 1198 1199 consinit_called = 1; 1200 1201 #if NCOM > 0 1202 1203 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1204 /* Maybe passed Linux's bootargs 'console=ttyS?,<speed>...' */ 1205 if (strncmp(console, "ttyS", 4) == 0 && console[5] == ',') { 1206 int i; 1207 1208 comcnspeed = 0; 1209 for (i = 6; i < strlen(console) && isdigit(console[i]); i++) 1210 comcnspeed = comcnspeed * 10 + (console[i] - '0'); 1211 } 1212 #endif 1213 1214 #if defined(GUMSTIX) 1215 1216 #ifdef FFUARTCONSOLE 1217 #ifdef KGDB 1218 if (strcmp(kgdb_devname, "ffuart") == 0){ 1219 /* port is reserved for kgdb */ 1220 } else 1221 #endif 1222 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1223 if (console[0] == '\0' || strcasecmp(console, "ffuart") == 0 || 1224 strncmp(console, "ttyS0,", 6) == 0) 1225 #endif 1226 { 1227 int rv; 1228 1229 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_FFUART_BASE, 1230 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1231 if (rv == 0) { 1232 pxa2x0_clkman_config(CKEN_FFUART, 1); 1233 return; 1234 } 1235 } 1236 #endif /* FFUARTCONSOLE */ 1237 1238 #ifdef STUARTCONSOLE 1239 #ifdef KGDB 1240 if (strcmp(kgdb_devname, "stuart") == 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, "stuart") == 0) 1246 #endif 1247 { 1248 int rv; 1249 1250 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_STUART_BASE, 1251 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1252 if (rv == 0) { 1253 pxa2x0_clkman_config(CKEN_STUART, 1); 1254 return; 1255 } 1256 } 1257 #endif /* STUARTCONSOLE */ 1258 1259 #ifdef BTUARTCONSOLE 1260 #ifdef KGDB 1261 if (strcmp(kgdb_devname, "btuart") == 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, "btuart") == 0) 1267 #endif 1268 { 1269 int rv; 1270 1271 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_BTUART_BASE, 1272 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1273 if (rv == 0) { 1274 pxa2x0_clkman_config(CKEN_BTUART, 1); 1275 return; 1276 } 1277 } 1278 #endif /* BTUARTCONSOLE */ 1279 1280 #ifdef HWUARTCONSOLE 1281 #ifdef KGDB 1282 if (strcmp(kgdb_devname, "hwuart") == 0) { 1283 /* port is reserved for kgdb */ 1284 } else 1285 #endif 1286 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1287 if (console[0] == '\0' || strcasecmp(console, "hwuart") == 0) 1288 #endif 1289 { 1290 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_HWUART_BASE, 1291 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1292 if (rv == 0) { 1293 pxa2x0_clkman_config(CKEN_HWUART, 1); 1294 return; 1295 } 1296 } 1297 #endif /* HWUARTCONSOLE */ 1298 1299 #elif defined(OVERO) 1300 1301 if (comcnattach(&omap_a4x_bs_tag, 0x49020000, comcnspeed, 1302 OMAP_COM_FREQ, COM_TYPE_NORMAL, comcnmode) == 0) 1303 return; 1304 1305 #endif /* GUMSTIX or OVERO */ 1306 1307 #endif /* NCOM */ 1308 1309 #if NLCD > 0 1310 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1311 if (console[0] == '\0' || strcasecmp(console, "lcd") == 0) 1312 #endif 1313 { 1314 gxlcd_cnattach(); 1315 } 1316 #endif 1317 } 1318 1319 #ifdef KGDB 1320 static void 1321 kgdb_port_init(void) 1322 { 1323 #if (NCOM > 0) && defined(COM_PXA2X0) 1324 paddr_t paddr = 0; 1325 int cken = 0; 1326 1327 if (0 == strcmp(kgdb_devname, "ffuart")) { 1328 paddr = PXA2X0_FFUART_BASE; 1329 cken = CKEN_FFUART; 1330 } else if (0 == strcmp(kgdb_devname, "stuart")) { 1331 paddr = PXA2X0_STUART_BASE; 1332 cken = CKEN_STUART; 1333 } else if (0 == strcmp(kgdb_devname, "btuart")) { 1334 paddr = PXA2X0_BTUART_BASE; 1335 cken = CKEN_BTUART; 1336 } else if (0 == strcmp(kgdb_devname, "hwuart")) { 1337 paddr = PXA2X0_HWUART_BASE; 1338 cken = CKEN_HWUART; 1339 } 1340 1341 if (paddr && 1342 0 == com_kgdb_attach(&pxa2x0_a4x_bs_tag, paddr, 1343 kgdb_devrate, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comkgdbmode)) { 1344 1345 pxa2x0_clkman_config(cken, 1); 1346 } 1347 1348 #endif 1349 } 1350 #endif 1351 1352 static void 1353 gumstix_device_register(device_t dev, void *aux) 1354 { 1355 1356 if (device_is_a(dev, "ohci")) { 1357 if (prop_dictionary_set_bool(device_properties(dev), 1358 "Ganged-power-mask-on-port1", 1) == false) { 1359 printf("WARNING: unable to set power-mask for port1" 1360 " property for %s\n", dev->dv_xname); 1361 } 1362 if (prop_dictionary_set_bool(device_properties(dev), 1363 "Ganged-power-mask-on-port2", 1) == false) { 1364 printf("WARNING: unable to set power-mask for port2" 1365 " property for %s\n", dev->dv_xname); 1366 } 1367 if (prop_dictionary_set_bool(device_properties(dev), 1368 "Ganged-power-mask-on-port3", 1) == false) { 1369 printf("WARNING: unable to set power-mask for port3" 1370 " property for %s\n", dev->dv_xname); 1371 } 1372 } 1373 } 1374
Indexes created Thu Oct 02 14:10:14 GMT 2025