gumstix_machdep.c revision 1.32
1 /* $NetBSD: gumstix_machdep.c,v 1.32 2010/08/30 05:37:30 kiyohara 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 dependant 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 dependant 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 #include "md.h" 154 155 #include <sys/param.h> 156 #include <sys/conf.h> 157 #include <sys/device.h> 158 #include <sys/exec.h> 159 #include <sys/kernel.h> 160 #include <sys/ksyms.h> 161 #include <sys/msgbuf.h> 162 #include <sys/proc.h> 163 #include <sys/reboot.h> 164 #include <sys/systm.h> 165 #include <sys/termios.h> 166 167 #include <machine/autoconf.h> 168 #include <machine/bootconfig.h> 169 #include <machine/bus.h> 170 #include <machine/cpu.h> 171 #include <machine/db_machdep.h> 172 #include <machine/frame.h> 173 174 #include <arm/arm32/machdep.h> 175 #include <arm/omap/omap2_gpmcreg.h> 176 #if NPRCM > 0 177 #include <arm/omap/omap2_prcm.h> 178 #endif 179 #include <arm/omap/omap2_reg.h> 180 #include <arm/omap/omap_var.h> 181 #include <arm/omap/omap_com.h> 182 #include <arm/undefined.h> 183 #include <arm/xscale/pxa2x0reg.h> 184 #include <arm/xscale/pxa2x0var.h> 185 #include <arm/xscale/pxa2x0_gpio.h> 186 #include <evbarm/gumstix/gumstixreg.h> 187 #include <evbarm/gumstix/gumstixvar.h> 188 189 #include <uvm/uvm_extern.h> 190 191 #include <dev/cons.h> 192 #include <dev/md.h> 193 194 #include <ddb/db_sym.h> 195 #include <ddb/db_extern.h> 196 #ifdef KGDB 197 #include <sys/kgdb.h> 198 #endif 199 200 /* Kernel text starts 2MB in from the bottom of the kernel address space. */ 201 #define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00200000) 202 #ifndef KERNEL_VM_BASE 203 #define KERNEL_VM_BASE (KERNEL_BASE + 0x01000000) 204 #endif 205 206 /* 207 * The range 0xc1000000 - 0xccffffff is available for kernel VM space 208 * Core-logic registers and I/O mappings occupy 0xfd000000 - 0xffffffff 209 */ 210 #define KERNEL_VM_SIZE 0x0C000000 211 212 213 /* 214 * Address to call from cpu_reset() to reset the machine. 215 * This is machine architecture dependant as it varies depending 216 * on where the ROM appears when you turn the MMU off. 217 */ 218 219 u_int cpu_reset_address = 0; 220 221 /* Define various stack sizes in pages */ 222 #define IRQ_STACK_SIZE 1 223 #define ABT_STACK_SIZE 1 224 #define UND_STACK_SIZE 1 225 226 BootConfig bootconfig; /* Boot config storage */ 227 static char bootargs[MAX_BOOT_STRING]; 228 char *boot_args = NULL; 229 230 uint32_t system_serial_high; 231 uint32_t system_serial_low; 232 233 vm_offset_t physical_start; 234 vm_offset_t physical_freestart; 235 vm_offset_t physical_freeend; 236 vm_offset_t physical_end; 237 u_int free_pages; 238 239 /*int debug_flags;*/ 240 #ifndef PMAP_STATIC_L1S 241 int max_processes = 64; /* Default number */ 242 #endif /* !PMAP_STATIC_L1S */ 243 244 /* Physical and virtual addresses for some global pages */ 245 pv_addr_t irqstack; 246 pv_addr_t undstack; 247 pv_addr_t abtstack; 248 pv_addr_t kernelstack; 249 pv_addr_t minidataclean; 250 251 vm_offset_t msgbufphys; 252 253 extern u_int data_abort_handler_address; 254 extern u_int prefetch_abort_handler_address; 255 extern u_int undefined_handler_address; 256 257 #ifdef PMAP_DEBUG 258 extern int pmap_debug_level; 259 #endif 260 261 #define KERNEL_PT_SYS 0 /* Page table for mapping proc0 zero page */ 262 #define KERNEL_PT_KERNEL 1 /* Page table for mapping kernel */ 263 #define KERNEL_PT_KERNEL_NUM ((KERNEL_VM_BASE - KERNEL_BASE) >> 22) 264 #define KERNEL_PT_VMDATA (KERNEL_PT_KERNEL+KERNEL_PT_KERNEL_NUM) 265 /* Page tables for mapping kernel VM */ 266 #define KERNEL_PT_VMDATA_NUM 4 /* start with 16MB of KVM */ 267 #define NUM_KERNEL_PTS (KERNEL_PT_VMDATA + KERNEL_PT_VMDATA_NUM) 268 269 pv_addr_t kernel_pt_table[NUM_KERNEL_PTS]; 270 271 /* Prototypes */ 272 #if defined(GUMSTIX) 273 static void read_system_serial(void); 274 #endif 275 static void process_kernel_args(int, char *[]); 276 static void process_kernel_args_liner(char *); 277 #ifdef KGDB 278 static void kgdb_port_init(void); 279 #endif 280 static void gumstix_device_register(device_t, void *); 281 282 bs_protos(bs_notimpl); 283 284 #include "com.h" 285 #if NCOM > 0 286 #include <dev/ic/comreg.h> 287 #include <dev/ic/comvar.h> 288 #endif 289 290 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 291 #include "lcd.h" 292 #endif 293 294 #ifndef CONSPEED 295 #define CONSPEED B115200 /* It's a setting of the default of u-boot */ 296 #endif 297 #ifndef CONMODE 298 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 299 #endif 300 301 int comcnspeed = CONSPEED; 302 int comcnmode = CONMODE; 303 304 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 305 static char console[16]; 306 #endif 307 308 extern void gxio_config_pin(void); 309 extern void gxio_config_expansion(char *); 310 311 /* 312 * void cpu_reboot(int howto, char *bootstr) 313 * 314 * Deal with any syncing, unmounting, dumping and shutdown hooks, 315 * then reset the CPU. 316 */ 317 void 318 cpu_reboot(int howto, char *bootstr) 319 { 320 321 #ifdef DIAGNOSTIC 322 /* info */ 323 printf("boot: howto=%08x curproc=%p\n", howto, curproc); 324 #endif 325 326 /* 327 * If we are still cold then hit the air brakes 328 * and crash to earth fast 329 */ 330 if (cold) { 331 doshutdownhooks(); 332 pmf_system_shutdown(boothowto); 333 printf("The operating system has halted.\n"); 334 printf("Please press any key to reboot.\n\n"); 335 cngetc(); 336 printf("rebooting...\n"); 337 #if defined(OMAP_3530) && NPRCM > 0 338 prcm_cold_reset(); 339 #endif 340 cpu_reset(); 341 /*NOTREACHED*/ 342 } 343 344 /* 345 * If RB_NOSYNC was not specified sync the discs. 346 * Note: Unless cold is set to 1 here, syslogd will die during the 347 * unmount. It looks like syslogd is getting woken up only to find 348 * that it cannot page part of the binary in as the filesystem has 349 * been unmounted. 350 */ 351 if (!(howto & RB_NOSYNC)) 352 bootsync(); 353 354 /* Say NO to interrupts */ 355 splhigh(); 356 357 /* Do a dump if requested. */ 358 if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP) 359 dumpsys(); 360 361 /* Run any shutdown hooks */ 362 doshutdownhooks(); 363 364 pmf_system_shutdown(boothowto); 365 366 /* Make sure IRQ's are disabled */ 367 IRQdisable; 368 369 if (howto & RB_HALT) { 370 printf("The operating system has halted.\n"); 371 printf("Please press any key to reboot.\n\n"); 372 cngetc(); 373 } 374 375 printf("rebooting...\n"); 376 #if defined(OMAP_3530) && NPRCM > 0 377 prcm_cold_reset(); 378 #endif 379 cpu_reset(); 380 /*NOTREACHED*/ 381 } 382 383 static inline pd_entry_t * 384 read_ttb(void) 385 { 386 long ttb; 387 388 __asm volatile("mrc p15, 0, %0, c2, c0, 0" : "=r" (ttb)); 389 390 return (pd_entry_t *)(ttb & ~((1<<14)-1)); 391 } 392 393 /* 394 * Static device mappings. These peripheral registers are mapped at 395 * fixed virtual addresses very early in initarm() so that we can use 396 * them while booting the kernel, and stay at the same address 397 * throughout whole kernel's life time. 398 * 399 * We use this table twice; once with bootstrap page table, and once 400 * with kernel's page table which we build up in initarm(). 401 * 402 * Since we map these registers into the bootstrap page table using 403 * pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map 404 * registers segment-aligned and segment-rounded in order to avoid 405 * using the 2nd page tables. 406 */ 407 408 #define _A(a) ((a) & ~L1_S_OFFSET) 409 #define _S(s) (((s) + L1_S_SIZE - 1) & ~(L1_S_SIZE-1)) 410 411 static const struct pmap_devmap gumstix_devmap[] = { 412 #if defined(GUMSTIX) 413 { 414 GUMSTIX_GPIO_VBASE, 415 _A(PXA2X0_GPIO_BASE), 416 _S(PXA250_GPIO_SIZE), 417 VM_PROT_READ | VM_PROT_WRITE, 418 PTE_NOCACHE, 419 }, 420 { 421 GUMSTIX_CLKMAN_VBASE, 422 _A(PXA2X0_CLKMAN_BASE), 423 _S(PXA2X0_CLKMAN_SIZE), 424 VM_PROT_READ | VM_PROT_WRITE, 425 PTE_NOCACHE, 426 }, 427 { 428 GUMSTIX_INTCTL_VBASE, 429 _A(PXA2X0_INTCTL_BASE), 430 _S(PXA2X0_INTCTL_SIZE), 431 VM_PROT_READ | VM_PROT_WRITE, 432 PTE_NOCACHE, 433 }, 434 { 435 GUMSTIX_FFUART_VBASE, 436 _A(PXA2X0_FFUART_BASE), 437 _S(4 * COM_NPORTS), 438 VM_PROT_READ | VM_PROT_WRITE, 439 PTE_NOCACHE, 440 }, 441 { 442 GUMSTIX_STUART_VBASE, 443 _A(PXA2X0_STUART_BASE), 444 _S(4 * COM_NPORTS), 445 VM_PROT_READ | VM_PROT_WRITE, 446 PTE_NOCACHE, 447 }, 448 { 449 GUMSTIX_BTUART_VBASE, 450 _A(PXA2X0_BTUART_BASE), 451 _S(4 * COM_NPORTS), 452 VM_PROT_READ | VM_PROT_WRITE, 453 PTE_NOCACHE, 454 }, 455 { 456 GUMSTIX_HWUART_VBASE, 457 _A(PXA2X0_HWUART_BASE), 458 _S(4 * COM_NPORTS), 459 VM_PROT_READ | VM_PROT_WRITE, 460 PTE_NOCACHE, 461 }, 462 { 463 GUMSTIX_LCDC_VBASE, 464 _A(PXA2X0_LCDC_BASE), 465 _S(4 * COM_NPORTS), 466 VM_PROT_READ | VM_PROT_WRITE, 467 PTE_NOCACHE, 468 }, 469 #elif defined(OVERO) 470 { 471 OVERO_L4_PERIPHERAL_VBASE, 472 _A(OMAP3530_L4_PERIPHERAL_BASE), 473 _S(OMAP3530_L4_PERIPHERAL_SIZE), 474 VM_PROT_READ | VM_PROT_WRITE, 475 PTE_NOCACHE 476 }, 477 { 478 OVERO_GPMC_VBASE, 479 _A(GPMC_BASE), 480 _S(GPMC_SIZE), 481 VM_PROT_READ | VM_PROT_WRITE, 482 PTE_NOCACHE 483 }, 484 #endif 485 { 0, 0, 0, 0, 0 } 486 }; 487 488 #undef _A 489 #undef _S 490 491 492 /* 493 * u_int initarm(...) 494 * 495 * Initial entry point on startup. This gets called before main() is 496 * entered. 497 * It should be responsible for setting up everything that must be 498 * in place when main is called. 499 * This includes 500 * Taking a copy of the boot configuration structure. 501 * Initialising the physical console so characters can be printed. 502 * Setting up page tables for the kernel 503 * Relocating the kernel to the bottom of physical memory 504 */ 505 u_int 506 initarm(void *arg) 507 { 508 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 509 #ifdef DIAGNOSTIC 510 extern vsize_t xscale_minidata_clean_size; /* used in KASSERT */ 511 #endif 512 extern vaddr_t xscale_cache_clean_addr; 513 #endif 514 extern uint32_t *u_boot_args[]; 515 extern uint32_t ram_size; 516 enum { r0 = 0, r1 = 1, r2 = 2, r3 = 3 }; /* args from u-boot */ 517 int loop; 518 int loop1; 519 u_int l1pagetable; 520 paddr_t memstart; 521 psize_t memsize; 522 523 /* 524 * U-Boot doesn't use the virtual memory. 525 * 526 * Gumstix (basix, connex, verdex, verdex-pro): 527 * Physical Address Range Description 528 * ----------------------- ---------------------------------- 529 * 0x00000000 - 0x00ffffff flash Memory (16MB or 4MB) 530 * 0x40000000 - 0x480fffff Processor Registers 531 * 0xa0000000 - 0xa3ffffff SDRAM Bank 0 (64MB or 128MB) 532 * 533 * Overo: 534 * Physical Address Range Description 535 * ----------------------- ---------------------------------- 536 */ 537 538 /* 539 * Heads up ... Setup the CPU / MMU / TLB functions 540 */ 541 if (set_cpufuncs()) 542 panic("cpu not recognized!"); 543 544 /* map some peripheral registers at static I/O area */ 545 pmap_devmap_bootstrap((vaddr_t)read_ttb(), gumstix_devmap); 546 547 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 548 /* start 32.768kHz OSC */ 549 ioreg_write(GUMSTIX_CLKMAN_VBASE + CLKMAN_OSCC, OSCC_OON); 550 551 /* Get ready for splfoo() */ 552 pxa2x0_intr_bootstrap(GUMSTIX_INTCTL_VBASE); 553 554 /* setup GPIO for {FF,ST,HW}UART. */ 555 pxa2x0_gpio_bootstrap(GUMSTIX_GPIO_VBASE); 556 557 pxa2x0_clkman_bootstrap(GUMSTIX_CLKMAN_VBASE); 558 #elif defined(CPU_CORTEXA8) 559 { 560 void cortexa8_pmc_ccnt_init(void); 561 562 cortexa8_pmc_ccnt_init(); 563 } 564 #endif 565 566 cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT); 567 568 /* configure GPIOs. */ 569 gxio_config_pin(); 570 571 572 #ifndef GUMSTIX_NETBSD_ARGS_CONSOLE 573 consinit(); 574 #endif 575 #ifdef KGDB 576 kgdb_port_init(); 577 #endif 578 579 /* 580 * Examine the boot args string for options we need to know about 581 * now. 582 */ 583 #if defined(GUMSTIX) 584 #define SDRAM_START 0xa0000000UL 585 #elif defined(OVERO) 586 #define SDRAM_START 0x80000000UL 587 #endif 588 if (((uint32_t)u_boot_args[r0] & 0xf0000000) != SDRAM_START) 589 /* Maybe r0 is 'argc'. We are booted by command 'go'. */ 590 process_kernel_args((int)u_boot_args[r0], 591 (char **)u_boot_args[r1]); 592 else 593 /* 594 * Maybe r3 is 'boot args string' of 'bootm'. This string is 595 * linely. 596 */ 597 process_kernel_args_liner((char *)u_boot_args[r3]); 598 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 599 consinit(); 600 #endif 601 602 /* Talk to the user */ 603 #define BDSTR(s) _BDSTR(s) 604 #define _BDSTR(s) #s 605 printf("\nNetBSD/evbarm (" BDSTR(EVBARM_BOARDTYPE) ") booting ...\n"); 606 607 /* Read system serial */ 608 #if defined(GUMSTIX) 609 read_system_serial(); 610 #endif 611 612 memstart = SDRAM_START; 613 memsize = ram_size; 614 615 #ifdef VERBOSE_INIT_ARM 616 printf("initarm: Configuring system ...\n"); 617 #endif 618 619 /* Fake bootconfig structure for the benefit of pmap.c */ 620 /* XXX must make the memory description h/w independent */ 621 bootconfig.dramblocks = 1; 622 bootconfig.dram[0].address = memstart; 623 bootconfig.dram[0].pages = memsize / PAGE_SIZE; 624 625 /* 626 * Set up the variables that define the availablilty of 627 * physical memory. For now, we're going to set 628 * physical_freestart to 0xa0200000 (where the kernel 629 * was loaded), and allocate the memory we need downwards. 630 * If we get too close to the L1 table that we set up, we 631 * will panic. We will update physical_freestart and 632 * physical_freeend later to reflect what pmap_bootstrap() 633 * wants to see. 634 * 635 * XXX pmap_bootstrap() needs an enema. 636 */ 637 physical_start = bootconfig.dram[0].address; 638 physical_end = physical_start + memsize; 639 640 #if defined(GUMSTIX) 641 physical_freestart = 0xa0009000UL; 642 physical_freeend = 0xa0200000UL; 643 #elif defined(OVERO) 644 physical_freestart = 0x80009000UL; 645 physical_freeend = 0x80200000UL; 646 #endif 647 648 physmem = (physical_end - physical_start) / PAGE_SIZE; 649 650 #ifdef VERBOSE_INIT_ARM 651 /* Tell the user about the memory */ 652 printf("physmemory: %d pages at 0x%08lx -> 0x%08lx\n", physmem, 653 physical_start, physical_end - 1); 654 #endif 655 656 /* 657 * Okay, the kernel starts 2MB in from the bottom of physical 658 * memory. We are going to allocate our bootstrap pages downwards 659 * from there. 660 * 661 * We need to allocate some fixed page tables to get the kernel 662 * going. We allocate one page directory and a number of page 663 * tables and store the physical addresses in the kernel_pt_table 664 * array. 665 * 666 * The kernel page directory must be on a 16K boundary. The page 667 * tables must be on 4K bounaries. What we do is allocate the 668 * page directory on the first 16K boundary that we encounter, and 669 * the page tables on 4K boundaries otherwise. Since we allocate 670 * at least 3 L2 page tables, we are guaranteed to encounter at 671 * least one 16K aligned region. 672 */ 673 674 #ifdef VERBOSE_INIT_ARM 675 printf("Allocating page tables\n"); 676 #endif 677 678 free_pages = (physical_freeend - physical_freestart) / PAGE_SIZE; 679 680 #ifdef VERBOSE_INIT_ARM 681 printf("freestart = 0x%08lx, free_pages = %d (0x%08x)\n", 682 physical_freestart, free_pages, free_pages); 683 #endif 684 685 /* Define a macro to simplify memory allocation */ 686 #define valloc_pages(var, np) \ 687 alloc_pages((var).pv_pa, (np)); \ 688 (var).pv_va = KERNEL_BASE + (var).pv_pa - physical_start; 689 690 #define alloc_pages(var, np) \ 691 physical_freeend -= ((np) * PAGE_SIZE); \ 692 if (physical_freeend < physical_freestart) \ 693 panic("initarm: out of memory"); \ 694 (var) = physical_freeend; \ 695 free_pages -= (np); \ 696 memset((char *)(var), 0, ((np) * PAGE_SIZE)); 697 698 loop1 = 0; 699 for (loop = 0; loop <= NUM_KERNEL_PTS; ++loop) { 700 /* Are we 16KB aligned for an L1 ? */ 701 if ((physical_freeend & (L1_TABLE_SIZE - 1)) == 0 && 702 kernel_l1pt.pv_pa == 0) { 703 valloc_pages(kernel_l1pt, L1_TABLE_SIZE / PAGE_SIZE); 704 } else { 705 valloc_pages(kernel_pt_table[loop1], 706 L2_TABLE_SIZE / PAGE_SIZE); 707 ++loop1; 708 } 709 } 710 711 /* This should never be able to happen but better confirm that. */ 712 if (!kernel_l1pt.pv_pa || (kernel_l1pt.pv_pa & (L1_TABLE_SIZE-1)) != 0) 713 panic("initarm: Failed to align the kernel page directory"); 714 715 /* 716 * Allocate a page for the system page mapped to V0x00000000 717 * This page will just contain the system vectors and can be 718 * shared by all processes. 719 */ 720 alloc_pages(systempage.pv_pa, 1); 721 #if defined(CPU_CORTEXA8) 722 systempage.pv_va = ARM_VECTORS_HIGH; 723 #endif 724 725 /* Allocate stacks for all modes */ 726 valloc_pages(irqstack, IRQ_STACK_SIZE); 727 valloc_pages(abtstack, ABT_STACK_SIZE); 728 valloc_pages(undstack, UND_STACK_SIZE); 729 valloc_pages(kernelstack, UPAGES); 730 731 /* Allocate enough pages for cleaning the Mini-Data cache. */ 732 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 733 KASSERT(xscale_minidata_clean_size <= PAGE_SIZE); 734 #endif 735 valloc_pages(minidataclean, 1); 736 737 #ifdef VERBOSE_INIT_ARM 738 printf("IRQ stack: p0x%08lx v0x%08lx\n", irqstack.pv_pa, 739 irqstack.pv_va); 740 printf("ABT stack: p0x%08lx v0x%08lx\n", abtstack.pv_pa, 741 abtstack.pv_va); 742 printf("UND stack: p0x%08lx v0x%08lx\n", undstack.pv_pa, 743 undstack.pv_va); 744 printf("SVC stack: p0x%08lx v0x%08lx\n", kernelstack.pv_pa, 745 kernelstack.pv_va); 746 #endif 747 748 /* 749 * XXX Defer this to later so that we can reclaim the memory 750 * XXX used by the RedBoot page tables. 751 */ 752 alloc_pages(msgbufphys, round_page(MSGBUFSIZE) / PAGE_SIZE); 753 754 /* 755 * Ok we have allocated physical pages for the primary kernel 756 * page tables 757 */ 758 759 #ifdef VERBOSE_INIT_ARM 760 printf("Creating L1 page table at 0x%08lx\n", kernel_l1pt.pv_pa); 761 #endif 762 763 /* 764 * Now we start construction of the L1 page table 765 * We start by mapping the L2 page tables into the L1. 766 * This means that we can replace L1 mappings later on if necessary 767 */ 768 l1pagetable = kernel_l1pt.pv_va; 769 770 /* Map the L2 pages tables in the L1 page table */ 771 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 772 pmap_link_l2pt(l1pagetable, 0x00000000, 773 &kernel_pt_table[KERNEL_PT_SYS]); 774 #elif defined(CPU_CORTEXA8) 775 pmap_link_l2pt(l1pagetable, ARM_VECTORS_HIGH & ~(0x00400000 - 1), 776 &kernel_pt_table[KERNEL_PT_SYS]); 777 #endif 778 for (loop = 0; loop < KERNEL_PT_KERNEL_NUM; loop++) 779 pmap_link_l2pt(l1pagetable, KERNEL_BASE + loop * 0x00400000, 780 &kernel_pt_table[KERNEL_PT_KERNEL + loop]); 781 for (loop = 0; loop < KERNEL_PT_VMDATA_NUM; loop++) 782 pmap_link_l2pt(l1pagetable, KERNEL_VM_BASE + loop * 0x00400000, 783 &kernel_pt_table[KERNEL_PT_VMDATA + loop]); 784 785 /* update the top of the kernel VM */ 786 pmap_curmaxkvaddr = 787 KERNEL_VM_BASE + (KERNEL_PT_VMDATA_NUM * 0x00400000); 788 789 #ifdef VERBOSE_INIT_ARM 790 printf("Mapping kernel\n"); 791 #endif 792 793 /* Now we fill in the L2 pagetable for the kernel static code/data */ 794 { 795 extern char etext[], _end[]; 796 size_t textsize = (uintptr_t) etext - KERNEL_TEXT_BASE; 797 size_t totalsize = (uintptr_t) _end - KERNEL_TEXT_BASE; 798 u_int logical; 799 800 textsize = (textsize + PGOFSET) & ~PGOFSET; 801 totalsize = (totalsize + PGOFSET) & ~PGOFSET; 802 803 logical = 0x00200000; /* offset of kernel in RAM */ 804 805 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 806 physical_start + logical, textsize, 807 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 808 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 809 physical_start + logical, totalsize - textsize, 810 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 811 } 812 813 #ifdef VERBOSE_INIT_ARM 814 printf("Constructing L2 page tables\n"); 815 #endif 816 817 /* Map the stack pages */ 818 pmap_map_chunk(l1pagetable, irqstack.pv_va, irqstack.pv_pa, 819 IRQ_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 820 pmap_map_chunk(l1pagetable, abtstack.pv_va, abtstack.pv_pa, 821 ABT_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 822 pmap_map_chunk(l1pagetable, undstack.pv_va, undstack.pv_pa, 823 UND_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 824 pmap_map_chunk(l1pagetable, kernelstack.pv_va, kernelstack.pv_pa, 825 UPAGES * PAGE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_CACHE); 826 827 pmap_map_chunk(l1pagetable, kernel_l1pt.pv_va, kernel_l1pt.pv_pa, 828 L1_TABLE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_PAGETABLE); 829 830 for (loop = 0; loop < NUM_KERNEL_PTS; ++loop) { 831 pmap_map_chunk(l1pagetable, kernel_pt_table[loop].pv_va, 832 kernel_pt_table[loop].pv_pa, L2_TABLE_SIZE, 833 VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE); 834 } 835 836 /* Map the Mini-Data cache clean area. */ 837 #if defined(GUMSTIX) 838 xscale_setup_minidata(l1pagetable, minidataclean.pv_va, 839 minidataclean.pv_pa); 840 #endif 841 842 /* Map the vector page. */ 843 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 844 #if 1 845 /* MULTI-ICE requires that page 0 is NC/NB so that it can download the 846 * cache-clean code there. */ 847 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 848 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE); 849 #else 850 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 851 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 852 #endif 853 #elif defined(CPU_CORTEXA8) 854 pmap_map_entry(l1pagetable, ARM_VECTORS_HIGH, systempage.pv_pa, 855 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 856 #endif 857 858 /* 859 * map integrated peripherals at same address in l1pagetable 860 * so that we can continue to use console. 861 */ 862 pmap_devmap_bootstrap(l1pagetable, gumstix_devmap); 863 864 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 865 /* 866 * Give the XScale global cache clean code an appropriately 867 * sized chunk of unmapped VA space starting at 0xff000000 868 * (our device mappings end before this address). 869 */ 870 xscale_cache_clean_addr = 0xff000000U; 871 #endif 872 873 /* 874 * Now we have the real page tables in place so we can switch to them. 875 * Once this is done we will be running with the REAL kernel page 876 * tables. 877 */ 878 879 /* 880 * Update the physical_freestart/physical_freeend/free_pages 881 * variables. 882 */ 883 { 884 extern char _end[]; 885 886 physical_freestart = physical_start + 887 (((((uintptr_t) _end) + PGOFSET) & ~PGOFSET) - 888 KERNEL_BASE); 889 physical_freeend = physical_end; 890 free_pages = 891 (physical_freeend - physical_freestart) / PAGE_SIZE; 892 } 893 894 /* Switch tables */ 895 #ifdef VERBOSE_INIT_ARM 896 printf("freestart = 0x%08lx, free_pages = %d (0x%x)\n", 897 physical_freestart, free_pages, free_pages); 898 printf("switching to new L1 page table @%#lx...", kernel_l1pt.pv_pa); 899 #endif 900 901 cpu_setttb(kernel_l1pt.pv_pa); 902 cpu_tlb_flushID(); 903 cpu_domains(DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)); 904 905 /* 906 * Moved from cpu_startup() as data_abort_handler() references 907 * this during uvm init 908 */ 909 uvm_lwp_setuarea(&lwp0, kernelstack.pv_va); 910 911 #ifdef VERBOSE_INIT_ARM 912 printf("bootstrap done.\n"); 913 #endif 914 915 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 916 arm32_vector_init(ARM_VECTORS_LOW, ARM_VEC_ALL); 917 #elif defined(CPU_CORTEXA8) 918 arm32_vector_init(ARM_VECTORS_HIGH, ARM_VEC_ALL); 919 #endif 920 921 /* 922 * Pages were allocated during the secondary bootstrap for the 923 * stacks for different CPU modes. 924 * We must now set the r13 registers in the different CPU modes to 925 * point to these stacks. 926 * Since the ARM stacks use STMFD etc. we must set r13 to the top end 927 * of the stack memory. 928 */ 929 #ifdef VERBOSE_INIT_ARM 930 printf("init subsystems: stacks "); 931 #endif 932 933 set_stackptr(PSR_IRQ32_MODE, 934 irqstack.pv_va + IRQ_STACK_SIZE * PAGE_SIZE); 935 set_stackptr(PSR_ABT32_MODE, 936 abtstack.pv_va + ABT_STACK_SIZE * PAGE_SIZE); 937 set_stackptr(PSR_UND32_MODE, 938 undstack.pv_va + UND_STACK_SIZE * PAGE_SIZE); 939 940 /* 941 * Well we should set a data abort handler. 942 * Once things get going this will change as we will need a proper 943 * handler. 944 * Until then we will use a handler that just panics but tells us 945 * why. 946 * Initialisation of the vectors will just panic on a data abort. 947 * This just fills in a slighly better one. 948 */ 949 #ifdef VERBOSE_INIT_ARM 950 printf("vectors "); 951 #endif 952 data_abort_handler_address = (u_int)data_abort_handler; 953 prefetch_abort_handler_address = (u_int)prefetch_abort_handler; 954 undefined_handler_address = (u_int)undefinedinstruction_bounce; 955 956 /* Initialise the undefined instruction handlers */ 957 #ifdef VERBOSE_INIT_ARM 958 printf("undefined "); 959 #endif 960 undefined_init(); 961 962 /* Load memory into UVM. */ 963 #ifdef VERBOSE_INIT_ARM 964 printf("page "); 965 #endif 966 uvm_setpagesize(); /* initialize PAGE_SIZE-dependent variables */ 967 uvm_page_physload(atop(physical_freestart), atop(physical_freeend), 968 atop(physical_freestart), atop(physical_freeend), 969 VM_FREELIST_DEFAULT); 970 971 /* Boot strap pmap telling it where the kernel page table is */ 972 #ifdef VERBOSE_INIT_ARM 973 printf("pmap "); 974 #endif 975 pmap_bootstrap(KERNEL_VM_BASE, KERNEL_VM_BASE + KERNEL_VM_SIZE); 976 977 #ifdef __HAVE_MEMORY_DISK__ 978 md_root_setconf(memory_disk, sizeof memory_disk); 979 #endif 980 981 #ifdef BOOTHOWTO 982 boothowto |= BOOTHOWTO; 983 #endif 984 985 #ifdef KGDB 986 if (boothowto & RB_KDB) { 987 kgdb_debug_init = 1; 988 kgdb_connect(1); 989 } 990 #endif 991 992 #if NKSYMS || defined(DDB) || defined(MODULAR) 993 /* Firmware doesn't load symbols. */ 994 ddb_init(0, NULL, NULL); 995 #endif 996 997 #ifdef DDB 998 db_machine_init(); 999 if (boothowto & RB_KDB) 1000 Debugger(); 1001 #endif 1002 1003 /* We have our own device_register() */ 1004 evbarm_device_register = gumstix_device_register; 1005 1006 /* We return the new stack pointer address */ 1007 return(kernelstack.pv_va + USPACE_SVC_STACK_TOP); 1008 } 1009 1010 #if defined(GUMSTIX) 1011 static void 1012 read_system_serial(void) 1013 { 1014 #define GUMSTIX_SYSTEM_SERIAL_ADDR 0 1015 #define GUMSTIX_SYSTEM_SERIAL_SIZE 8 1016 #define FLASH_OFFSET_INTEL_PROTECTION 0x81 1017 #define FLASH_OFFSET_USER_PROTECTION 0x85 1018 #define FLASH_CMD_READ_ID 0x90 1019 #define FLASH_CMD_RESET 0xff 1020 int i; 1021 char system_serial[GUMSTIX_SYSTEM_SERIAL_SIZE], *src; 1022 char x; 1023 1024 src = (char *)(FLASH_OFFSET_USER_PROTECTION * 2 /*word*/); 1025 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1026 memcpy(system_serial, 1027 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1028 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1029 1030 for (i = 1, x = system_serial[0]; i < sizeof (system_serial); i++) 1031 x &= system_serial[i]; 1032 if (x == 0xff) { 1033 src = (char *)(FLASH_OFFSET_INTEL_PROTECTION * 2 /*word*/); 1034 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1035 memcpy(system_serial, 1036 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1037 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1038 1039 /* 1040 * XXXX: Don't need ??? 1041 * gumstix_serial_hash(system_serial); 1042 */ 1043 } 1044 system_serial_high = system_serial[0] << 24 | system_serial[1] << 16 | 1045 system_serial[2] << 8 | system_serial[3]; 1046 system_serial_low = system_serial[4] << 24 | system_serial[5] << 16 | 1047 system_serial[6] << 8 | system_serial[7]; 1048 1049 printf("system serial: 0x"); 1050 for (i = 0; i < sizeof (system_serial); i++) 1051 printf("%02x", system_serial[i]); 1052 printf("\n"); 1053 } 1054 #endif 1055 1056 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1057 static const char busheader_name[] = "busheader="; 1058 #endif 1059 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1060 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1061 static const char expansion_name[] = "expansion="; 1062 #endif 1063 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1064 static const char console_name[] = "console="; 1065 #endif 1066 static void 1067 process_kernel_args(int argc, char *argv[]) 1068 { 1069 int gxio_configured = 0, i, j; 1070 1071 boothowto = 0; 1072 1073 for (i = 1, j = 0; i < argc; i++) { 1074 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1075 if (!strncmp(argv[i], busheader_name, strlen(busheader_name))) { 1076 /* Configure for GPIOs of busheader side */ 1077 gxio_config_expansion(argv[i] + strlen(busheader_name)); 1078 gxio_configured = 1; 1079 continue; 1080 } 1081 #endif 1082 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1083 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1084 if (!strncmp(argv[i], expansion_name, strlen(expansion_name))) { 1085 /* Configure expansion */ 1086 gxio_config_expansion(argv[i] + strlen(expansion_name)); 1087 gxio_configured = 1; 1088 continue; 1089 } 1090 #endif 1091 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1092 if (!strncmp(argv[i], console_name, strlen(console_name))) { 1093 strncpy(console, argv[i] + strlen(console_name), 1094 sizeof(console)); 1095 consinit(); 1096 } 1097 #endif 1098 if (j == MAX_BOOT_STRING) { 1099 *(bootargs + j) = '\0'; 1100 continue; 1101 } 1102 if (j != 0) 1103 *(bootargs + j++) = ' '; 1104 strncpy(bootargs + j, argv[i], MAX_BOOT_STRING - j); 1105 j += strlen(argv[i]); 1106 } 1107 boot_args = bootargs; 1108 1109 parse_mi_bootargs(boot_args); 1110 1111 if (!gxio_configured) 1112 gxio_config_expansion(NULL); 1113 } 1114 1115 static void 1116 process_kernel_args_liner(char *args) 1117 { 1118 int i = 0; 1119 char *p = NULL; 1120 1121 boothowto = 0; 1122 1123 strncpy(bootargs, args, sizeof(bootargs)); 1124 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1125 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1126 { 1127 char *q; 1128 1129 if ((p = strstr(bootargs, expansion_name))) 1130 q = p + strlen(expansion_name); 1131 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1132 else if ((p = strstr(bootargs, busheader_name))) 1133 q = p + strlen(busheader_name); 1134 #endif 1135 if (p) { 1136 char expansion[256], c; 1137 1138 i = 0; 1139 do { 1140 c = *(q + i); 1141 if (c == ' ') 1142 c = '\0'; 1143 expansion[i++] = c; 1144 } while (c != '\0' && i < sizeof(expansion)); 1145 gxio_config_expansion(expansion); 1146 strcpy(p, q + i); 1147 } 1148 } 1149 #endif 1150 if (p == NULL) 1151 gxio_config_expansion(NULL); 1152 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1153 p = strstr(bootargs, console_name); 1154 if (p != NULL) { 1155 char c; 1156 1157 i = 0; 1158 do { 1159 c = *(p + strlen(console_name) + i); 1160 if (c == ' ') 1161 c = '\0'; 1162 console[i++] = c; 1163 } while (c != '\0' && i < sizeof(console)); 1164 consinit(); 1165 strcpy(p, p + strlen(console_name) + i); 1166 } 1167 #endif 1168 boot_args = bootargs; 1169 1170 parse_mi_bootargs(boot_args); 1171 } 1172 1173 #ifdef KGDB 1174 #ifndef KGDB_DEVNAME 1175 #define KGDB_DEVNAME "ffuart" 1176 #endif 1177 const char kgdb_devname[] = KGDB_DEVNAME; 1178 1179 #ifndef KGDB_DEVRATE 1180 #define KGDB_DEVRATE CONSPEED 1181 #endif 1182 int kgdb_devrate = KGDB_DEVRATE; 1183 1184 #if (NCOM > 0) 1185 #ifndef KGDB_DEVMODE 1186 #define KGDB_DEVMODE CONMODE 1187 #endif 1188 int comkgdbmode = KGDB_DEVMODE; 1189 #endif /* NCOM */ 1190 1191 #endif /* KGDB */ 1192 1193 1194 void 1195 consinit(void) 1196 { 1197 static int consinit_called = 0; 1198 1199 if (consinit_called != 0) 1200 return; 1201 1202 consinit_called = 1; 1203 1204 #if NCOM > 0 1205 1206 #if defined(GUMSTIX) 1207 1208 #ifdef FFUARTCONSOLE 1209 #ifdef KGDB 1210 if (strcmp(kgdb_devname, "ffuart") == 0){ 1211 /* port is reserved for kgdb */ 1212 } else 1213 #endif 1214 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1215 if (console[0] == '\0' || strcasecmp(console, "ffuart") == 0) 1216 #endif 1217 { 1218 int rv; 1219 1220 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_FFUART_BASE, 1221 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1222 if (rv == 0) { 1223 pxa2x0_clkman_config(CKEN_FFUART, 1); 1224 return; 1225 } 1226 } 1227 #endif /* FFUARTCONSOLE */ 1228 1229 #ifdef STUARTCONSOLE 1230 #ifdef KGDB 1231 if (strcmp(kgdb_devname, "stuart") == 0) { 1232 /* port is reserved for kgdb */ 1233 } else 1234 #endif 1235 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1236 if (console[0] == '\0' || strcasecmp(console, "stuart") == 0) 1237 #endif 1238 { 1239 int rv; 1240 1241 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_STUART_BASE, 1242 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1243 if (rv == 0) { 1244 pxa2x0_clkman_config(CKEN_STUART, 1); 1245 return; 1246 } 1247 } 1248 #endif /* STUARTCONSOLE */ 1249 1250 #ifdef BTUARTCONSOLE 1251 #ifdef KGDB 1252 if (strcmp(kgdb_devname, "btuart") == 0) { 1253 /* port is reserved for kgdb */ 1254 } else 1255 #endif 1256 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1257 if (console[0] == '\0' || strcasecmp(console, "btuart") == 0) 1258 #endif 1259 { 1260 int rv; 1261 1262 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_BTUART_BASE, 1263 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1264 if (rv == 0) { 1265 pxa2x0_clkman_config(CKEN_BTUART, 1); 1266 return; 1267 } 1268 } 1269 #endif /* BTUARTCONSOLE */ 1270 1271 #ifdef HWUARTCONSOLE 1272 #ifdef KGDB 1273 if (strcmp(kgdb_devname, "hwuart") == 0) { 1274 /* port is reserved for kgdb */ 1275 } else 1276 #endif 1277 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1278 if (console[0] == '\0' || strcasecmp(console, "hwuart") == 0) 1279 #endif 1280 { 1281 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_HWUART_BASE, 1282 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1283 if (rv == 0) { 1284 pxa2x0_clkman_config(CKEN_HWUART, 1); 1285 return; 1286 } 1287 } 1288 #endif /* HWUARTCONSOLE */ 1289 1290 #elif defined(OVERO) 1291 1292 if (comcnattach(&omap_a4x_bs_tag, 0x49020000, comcnspeed, 1293 OMAP_COM_FREQ, COM_TYPE_NORMAL, comcnmode) == 0) 1294 return; 1295 1296 #endif /* GUMSTIX or OVERO */ 1297 1298 #endif /* NCOM */ 1299 1300 #if NLCD > 0 1301 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1302 if (console[0] == '\0' || strcasecmp(console, "lcd") == 0) 1303 #endif 1304 { 1305 gxlcd_cnattach(); 1306 } 1307 #endif 1308 } 1309 1310 #ifdef KGDB 1311 static void 1312 kgdb_port_init(void) 1313 { 1314 #if (NCOM > 0) && defined(COM_PXA2X0) 1315 paddr_t paddr = 0; 1316 int cken = 0; 1317 1318 if (0 == strcmp(kgdb_devname, "ffuart")) { 1319 paddr = PXA2X0_FFUART_BASE; 1320 cken = CKEN_FFUART; 1321 } else if (0 == strcmp(kgdb_devname, "stuart")) { 1322 paddr = PXA2X0_STUART_BASE; 1323 cken = CKEN_STUART; 1324 } else if (0 == strcmp(kgdb_devname, "btuart")) { 1325 paddr = PXA2X0_BTUART_BASE; 1326 cken = CKEN_BTUART; 1327 } else if (0 == strcmp(kgdb_devname, "hwuart")) { 1328 paddr = PXA2X0_HWUART_BASE; 1329 cken = CKEN_HWUART; 1330 } 1331 1332 if (paddr && 1333 0 == com_kgdb_attach(&pxa2x0_a4x_bs_tag, paddr, 1334 kgdb_devrate, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comkgdbmode)) { 1335 1336 pxa2x0_clkman_config(cken, 1); 1337 } 1338 1339 #endif 1340 } 1341 #endif 1342 1343 static void 1344 gumstix_device_register(device_t dev, void *aux) 1345 { 1346 1347 if (device_is_a(dev, "ohci")) { 1348 if (prop_dictionary_set_bool(device_properties(dev), 1349 "Ganged-power-mask-on-port1", 1) == false) { 1350 printf("WARNING: unable to set power-mask for port1" 1351 " property for %s\n", dev->dv_xname); 1352 } 1353 if (prop_dictionary_set_bool(device_properties(dev), 1354 "Ganged-power-mask-on-port2", 1) == false) { 1355 printf("WARNING: unable to set power-mask for port2" 1356 " property for %s\n", dev->dv_xname); 1357 } 1358 if (prop_dictionary_set_bool(device_properties(dev), 1359 "Ganged-power-mask-on-port3", 1) == false) { 1360 printf("WARNING: unable to set power-mask for port3" 1361 " property for %s\n", dev->dv_xname); 1362 } 1363 } 1364 } 1365
Indexes created Fri Oct 03 02:09:57 GMT 2025