gumstix_machdep.c revision 1.24.2.3
1 /* $NetBSD: gumstix_machdep.c,v 1.24.2.3 2010/10/22 07:21:16 uebayasi 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 #include <arm/omap/omap2_prcm.h> 177 #include <arm/omap/omap2_reg.h> 178 #include <arm/omap/omap_var.h> 179 #include <arm/omap/omap_com.h> 180 #include <arm/undefined.h> 181 #include <arm/xscale/pxa2x0reg.h> 182 #include <arm/xscale/pxa2x0var.h> 183 #include <arm/xscale/pxa2x0_gpio.h> 184 #include <evbarm/gumstix/gumstixreg.h> 185 #include <evbarm/gumstix/gumstixvar.h> 186 187 #include <uvm/uvm_extern.h> 188 189 #include <dev/cons.h> 190 #include <dev/md.h> 191 192 #include <ddb/db_sym.h> 193 #include <ddb/db_extern.h> 194 #ifdef KGDB 195 #include <sys/kgdb.h> 196 #endif 197 198 /* Kernel text starts 2MB in from the bottom of the kernel address space. */ 199 #define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00200000) 200 #ifndef KERNEL_VM_BASE 201 #define KERNEL_VM_BASE (KERNEL_BASE + 0x01000000) 202 #endif 203 204 /* 205 * The range 0xc1000000 - 0xccffffff is available for kernel VM space 206 * Core-logic registers and I/O mappings occupy 0xfd000000 - 0xffffffff 207 */ 208 #define KERNEL_VM_SIZE 0x0C000000 209 210 211 /* 212 * Address to call from cpu_reset() to reset the machine. 213 * This is machine architecture dependant as it varies depending 214 * on where the ROM appears when you turn the MMU off. 215 */ 216 217 u_int cpu_reset_address = 0; 218 219 /* Define various stack sizes in pages */ 220 #define IRQ_STACK_SIZE 1 221 #define ABT_STACK_SIZE 1 222 #define UND_STACK_SIZE 1 223 224 BootConfig bootconfig; /* Boot config storage */ 225 static char bootargs[MAX_BOOT_STRING]; 226 char *boot_args = NULL; 227 228 uint32_t system_serial_high; 229 uint32_t system_serial_low; 230 231 vm_offset_t physical_start; 232 vm_offset_t physical_freestart; 233 vm_offset_t physical_freeend; 234 vm_offset_t physical_end; 235 u_int free_pages; 236 237 /*int debug_flags;*/ 238 #ifndef PMAP_STATIC_L1S 239 int max_processes = 64; /* Default number */ 240 #endif /* !PMAP_STATIC_L1S */ 241 242 /* Physical and virtual addresses for some global pages */ 243 pv_addr_t irqstack; 244 pv_addr_t undstack; 245 pv_addr_t abtstack; 246 pv_addr_t kernelstack; 247 pv_addr_t minidataclean; 248 249 vm_offset_t msgbufphys; 250 251 extern u_int data_abort_handler_address; 252 extern u_int prefetch_abort_handler_address; 253 extern u_int undefined_handler_address; 254 255 #ifdef PMAP_DEBUG 256 extern int pmap_debug_level; 257 #endif 258 259 #define KERNEL_PT_SYS 0 /* Page table for mapping proc0 zero page */ 260 #define KERNEL_PT_KERNEL 1 /* Page table for mapping kernel */ 261 #define KERNEL_PT_KERNEL_NUM ((KERNEL_VM_BASE - KERNEL_BASE) >> 22) 262 #define KERNEL_PT_VMDATA (KERNEL_PT_KERNEL+KERNEL_PT_KERNEL_NUM) 263 /* Page tables for mapping kernel VM */ 264 #define KERNEL_PT_VMDATA_NUM 4 /* start with 16MB of KVM */ 265 #define NUM_KERNEL_PTS (KERNEL_PT_VMDATA + KERNEL_PT_VMDATA_NUM) 266 267 pv_addr_t kernel_pt_table[NUM_KERNEL_PTS]; 268 269 /* Prototypes */ 270 #if defined(GUMSTIX) 271 static void read_system_serial(void); 272 #endif 273 static void process_kernel_args(int, char *[]); 274 static void process_kernel_args_liner(char *); 275 #ifdef KGDB 276 static void kgdb_port_init(void); 277 #endif 278 static void gumstix_device_register(device_t, void *); 279 280 bs_protos(bs_notimpl); 281 282 #include "com.h" 283 #if NCOM > 0 284 #include <dev/ic/comreg.h> 285 #include <dev/ic/comvar.h> 286 #endif 287 288 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 289 #include "lcd.h" 290 #endif 291 292 #ifndef CONSPEED 293 #define CONSPEED B115200 /* It's a setting of the default of u-boot */ 294 #endif 295 #ifndef CONMODE 296 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 297 #endif 298 299 int comcnspeed = CONSPEED; 300 int comcnmode = CONMODE; 301 302 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 303 static char console[16]; 304 #endif 305 306 extern void gxio_config_pin(void); 307 extern void gxio_config_expansion(char *); 308 309 /* 310 * void cpu_reboot(int howto, char *bootstr) 311 * 312 * Deal with any syncing, unmounting, dumping and shutdown hooks, 313 * then reset the CPU. 314 */ 315 void 316 cpu_reboot(int howto, char *bootstr) 317 { 318 319 #ifdef DIAGNOSTIC 320 /* info */ 321 printf("boot: howto=%08x curproc=%p\n", howto, curproc); 322 #endif 323 324 /* 325 * If we are still cold then hit the air brakes 326 * and crash to earth fast 327 */ 328 if (cold) { 329 doshutdownhooks(); 330 pmf_system_shutdown(boothowto); 331 printf("The operating system has halted.\n"); 332 printf("Please press any key to reboot.\n\n"); 333 cngetc(); 334 printf("rebooting...\n"); 335 #if defined(OMAP_3530) && NPRCM > 0 336 prcm_cold_reset(); 337 #endif 338 cpu_reset(); 339 /*NOTREACHED*/ 340 } 341 342 /* 343 * If RB_NOSYNC was not specified sync the discs. 344 * Note: Unless cold is set to 1 here, syslogd will die during the 345 * unmount. It looks like syslogd is getting woken up only to find 346 * that it cannot page part of the binary in as the filesystem has 347 * been unmounted. 348 */ 349 if (!(howto & RB_NOSYNC)) 350 bootsync(); 351 352 /* Say NO to interrupts */ 353 splhigh(); 354 355 /* Do a dump if requested. */ 356 if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP) 357 dumpsys(); 358 359 /* Run any shutdown hooks */ 360 doshutdownhooks(); 361 362 pmf_system_shutdown(boothowto); 363 364 /* Make sure IRQ's are disabled */ 365 IRQdisable; 366 367 if (howto & RB_HALT) { 368 printf("The operating system has halted.\n"); 369 printf("Please press any key to reboot.\n\n"); 370 cngetc(); 371 } 372 373 printf("rebooting...\n"); 374 #if defined(OMAP_3530) && NPRCM > 0 375 prcm_cold_reset(); 376 #endif 377 cpu_reset(); 378 /*NOTREACHED*/ 379 } 380 381 static inline pd_entry_t * 382 read_ttb(void) 383 { 384 long ttb; 385 386 __asm volatile("mrc p15, 0, %0, c2, c0, 0" : "=r" (ttb)); 387 388 return (pd_entry_t *)(ttb & ~((1<<14)-1)); 389 } 390 391 /* 392 * Static device mappings. These peripheral registers are mapped at 393 * fixed virtual addresses very early in initarm() so that we can use 394 * them while booting the kernel, and stay at the same address 395 * throughout whole kernel's life time. 396 * 397 * We use this table twice; once with bootstrap page table, and once 398 * with kernel's page table which we build up in initarm(). 399 * 400 * Since we map these registers into the bootstrap page table using 401 * pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map 402 * registers segment-aligned and segment-rounded in order to avoid 403 * using the 2nd page tables. 404 */ 405 406 #define _A(a) ((a) & ~L1_S_OFFSET) 407 #define _S(s) (((s) + L1_S_SIZE - 1) & ~(L1_S_SIZE-1)) 408 409 static const struct pmap_devmap gumstix_devmap[] = { 410 #if defined(GUMSTIX) 411 { 412 GUMSTIX_GPIO_VBASE, 413 _A(PXA2X0_GPIO_BASE), 414 _S(PXA250_GPIO_SIZE), 415 VM_PROT_READ | VM_PROT_WRITE, 416 PTE_NOCACHE, 417 }, 418 { 419 GUMSTIX_CLKMAN_VBASE, 420 _A(PXA2X0_CLKMAN_BASE), 421 _S(PXA2X0_CLKMAN_SIZE), 422 VM_PROT_READ | VM_PROT_WRITE, 423 PTE_NOCACHE, 424 }, 425 { 426 GUMSTIX_INTCTL_VBASE, 427 _A(PXA2X0_INTCTL_BASE), 428 _S(PXA2X0_INTCTL_SIZE), 429 VM_PROT_READ | VM_PROT_WRITE, 430 PTE_NOCACHE, 431 }, 432 { 433 GUMSTIX_FFUART_VBASE, 434 _A(PXA2X0_FFUART_BASE), 435 _S(4 * COM_NPORTS), 436 VM_PROT_READ | VM_PROT_WRITE, 437 PTE_NOCACHE, 438 }, 439 { 440 GUMSTIX_STUART_VBASE, 441 _A(PXA2X0_STUART_BASE), 442 _S(4 * COM_NPORTS), 443 VM_PROT_READ | VM_PROT_WRITE, 444 PTE_NOCACHE, 445 }, 446 { 447 GUMSTIX_BTUART_VBASE, 448 _A(PXA2X0_BTUART_BASE), 449 _S(4 * COM_NPORTS), 450 VM_PROT_READ | VM_PROT_WRITE, 451 PTE_NOCACHE, 452 }, 453 { 454 GUMSTIX_HWUART_VBASE, 455 _A(PXA2X0_HWUART_BASE), 456 _S(4 * COM_NPORTS), 457 VM_PROT_READ | VM_PROT_WRITE, 458 PTE_NOCACHE, 459 }, 460 { 461 GUMSTIX_LCDC_VBASE, 462 _A(PXA2X0_LCDC_BASE), 463 _S(4 * COM_NPORTS), 464 VM_PROT_READ | VM_PROT_WRITE, 465 PTE_NOCACHE, 466 }, 467 #elif defined(OVERO) 468 { 469 OVERO_L4_PERIPHERAL_VBASE, 470 _A(OMAP3530_L4_PERIPHERAL_BASE), 471 _S(OMAP3530_L4_PERIPHERAL_SIZE), 472 VM_PROT_READ | VM_PROT_WRITE, 473 PTE_NOCACHE 474 }, 475 { 476 OVERO_GPMC_VBASE, 477 _A(GPMC_BASE), 478 _S(GPMC_SIZE), 479 VM_PROT_READ | VM_PROT_WRITE, 480 PTE_NOCACHE 481 }, 482 #endif 483 { 0, 0, 0, 0, 0 } 484 }; 485 486 #undef _A 487 #undef _S 488 489 490 /* 491 * u_int initarm(...) 492 * 493 * Initial entry point on startup. This gets called before main() is 494 * entered. 495 * It should be responsible for setting up everything that must be 496 * in place when main is called. 497 * This includes 498 * Taking a copy of the boot configuration structure. 499 * Initialising the physical console so characters can be printed. 500 * Setting up page tables for the kernel 501 * Relocating the kernel to the bottom of physical memory 502 */ 503 u_int 504 initarm(void *arg) 505 { 506 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 507 #ifdef DIAGNOSTIC 508 extern vsize_t xscale_minidata_clean_size; /* used in KASSERT */ 509 #endif 510 extern vaddr_t xscale_cache_clean_addr; 511 #endif 512 extern uint32_t *u_boot_args[]; 513 extern uint32_t ram_size; 514 enum { r0 = 0, r1 = 1, r2 = 2, r3 = 3 }; /* args from u-boot */ 515 int loop; 516 int loop1; 517 u_int l1pagetable; 518 paddr_t memstart; 519 psize_t memsize; 520 521 /* 522 * U-Boot doesn't use the virtual memory. 523 * 524 * Gumstix (basix, connex, verdex, verdex-pro): 525 * Physical Address Range Description 526 * ----------------------- ---------------------------------- 527 * 0x00000000 - 0x00ffffff flash Memory (16MB or 4MB) 528 * 0x40000000 - 0x480fffff Processor Registers 529 * 0xa0000000 - 0xa3ffffff SDRAM Bank 0 (64MB or 128MB) 530 * 531 * Overo: 532 * Physical Address Range Description 533 * ----------------------- ---------------------------------- 534 */ 535 536 /* 537 * Heads up ... Setup the CPU / MMU / TLB functions 538 */ 539 if (set_cpufuncs()) 540 panic("cpu not recognized!"); 541 542 /* map some peripheral registers at static I/O area */ 543 pmap_devmap_bootstrap((vaddr_t)read_ttb(), gumstix_devmap); 544 545 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 546 /* start 32.768kHz OSC */ 547 ioreg_write(GUMSTIX_CLKMAN_VBASE + CLKMAN_OSCC, OSCC_OON); 548 549 /* Get ready for splfoo() */ 550 pxa2x0_intr_bootstrap(GUMSTIX_INTCTL_VBASE); 551 552 /* setup GPIO for {FF,ST,HW}UART. */ 553 pxa2x0_gpio_bootstrap(GUMSTIX_GPIO_VBASE); 554 555 pxa2x0_clkman_bootstrap(GUMSTIX_CLKMAN_VBASE); 556 #elif defined(CPU_CORTEXA8) 557 { 558 void cortexa8_pmc_ccnt_init(void); 559 560 cortexa8_pmc_ccnt_init(); 561 } 562 #endif 563 564 cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT); 565 566 /* configure GPIOs. */ 567 gxio_config_pin(); 568 569 570 #ifndef GUMSTIX_NETBSD_ARGS_CONSOLE 571 consinit(); 572 #endif 573 #ifdef KGDB 574 kgdb_port_init(); 575 #endif 576 577 /* 578 * Examine the boot args string for options we need to know about 579 * now. 580 */ 581 #if defined(GUMSTIX) 582 #define SDRAM_START 0xa0000000UL 583 #elif defined(OVERO) 584 #define SDRAM_START 0x80000000UL 585 #endif 586 if (((uint32_t)u_boot_args[r0] & 0xf0000000) != SDRAM_START) 587 /* Maybe r0 is 'argc'. We are booted by command 'go'. */ 588 process_kernel_args((int)u_boot_args[r0], 589 (char **)u_boot_args[r1]); 590 else 591 /* 592 * Maybe r3 is 'boot args string' of 'bootm'. This string is 593 * linely. 594 */ 595 process_kernel_args_liner((char *)u_boot_args[r3]); 596 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 597 consinit(); 598 #endif 599 600 /* Talk to the user */ 601 #define BDSTR(s) _BDSTR(s) 602 #define _BDSTR(s) #s 603 printf("\nNetBSD/evbarm (" BDSTR(EVBARM_BOARDTYPE) ") booting ...\n"); 604 605 /* Read system serial */ 606 #if defined(GUMSTIX) 607 read_system_serial(); 608 #endif 609 610 memstart = SDRAM_START; 611 memsize = ram_size; 612 613 #ifdef VERBOSE_INIT_ARM 614 printf("initarm: Configuring system ...\n"); 615 #endif 616 617 /* Fake bootconfig structure for the benefit of pmap.c */ 618 /* XXX must make the memory description h/w independent */ 619 bootconfig.dramblocks = 1; 620 bootconfig.dram[0].address = memstart; 621 bootconfig.dram[0].pages = memsize / PAGE_SIZE; 622 623 /* 624 * Set up the variables that define the availablilty of 625 * physical memory. For now, we're going to set 626 * physical_freestart to 0xa0200000 (where the kernel 627 * was loaded), and allocate the memory we need downwards. 628 * If we get too close to the L1 table that we set up, we 629 * will panic. We will update physical_freestart and 630 * physical_freeend later to reflect what pmap_bootstrap() 631 * wants to see. 632 * 633 * XXX pmap_bootstrap() needs an enema. 634 */ 635 physical_start = bootconfig.dram[0].address; 636 physical_end = physical_start + memsize; 637 638 #if defined(GUMSTIX) 639 physical_freestart = 0xa0009000UL; 640 physical_freeend = 0xa0200000UL; 641 #elif defined(OVERO) 642 physical_freestart = 0x80009000UL; 643 physical_freeend = 0x80200000UL; 644 #endif 645 646 physmem = (physical_end - physical_start) / PAGE_SIZE; 647 648 #ifdef VERBOSE_INIT_ARM 649 /* Tell the user about the memory */ 650 printf("physmemory: %d pages at 0x%08lx -> 0x%08lx\n", physmem, 651 physical_start, physical_end - 1); 652 #endif 653 654 /* 655 * Okay, the kernel starts 2MB in from the bottom of physical 656 * memory. We are going to allocate our bootstrap pages downwards 657 * from there. 658 * 659 * We need to allocate some fixed page tables to get the kernel 660 * going. We allocate one page directory and a number of page 661 * tables and store the physical addresses in the kernel_pt_table 662 * array. 663 * 664 * The kernel page directory must be on a 16K boundary. The page 665 * tables must be on 4K bounaries. What we do is allocate the 666 * page directory on the first 16K boundary that we encounter, and 667 * the page tables on 4K boundaries otherwise. Since we allocate 668 * at least 3 L2 page tables, we are guaranteed to encounter at 669 * least one 16K aligned region. 670 */ 671 672 #ifdef VERBOSE_INIT_ARM 673 printf("Allocating page tables\n"); 674 #endif 675 676 free_pages = (physical_freeend - physical_freestart) / PAGE_SIZE; 677 678 #ifdef VERBOSE_INIT_ARM 679 printf("freestart = 0x%08lx, free_pages = %d (0x%08x)\n", 680 physical_freestart, free_pages, free_pages); 681 #endif 682 683 /* Define a macro to simplify memory allocation */ 684 #define valloc_pages(var, np) \ 685 alloc_pages((var).pv_pa, (np)); \ 686 (var).pv_va = KERNEL_BASE + (var).pv_pa - physical_start; 687 688 #define alloc_pages(var, np) \ 689 physical_freeend -= ((np) * PAGE_SIZE); \ 690 if (physical_freeend < physical_freestart) \ 691 panic("initarm: out of memory"); \ 692 (var) = physical_freeend; \ 693 free_pages -= (np); \ 694 memset((char *)(var), 0, ((np) * PAGE_SIZE)); 695 696 loop1 = 0; 697 for (loop = 0; loop <= NUM_KERNEL_PTS; ++loop) { 698 /* Are we 16KB aligned for an L1 ? */ 699 if ((physical_freeend & (L1_TABLE_SIZE - 1)) == 0 && 700 kernel_l1pt.pv_pa == 0) { 701 valloc_pages(kernel_l1pt, L1_TABLE_SIZE / PAGE_SIZE); 702 } else { 703 valloc_pages(kernel_pt_table[loop1], 704 L2_TABLE_SIZE / PAGE_SIZE); 705 ++loop1; 706 } 707 } 708 709 /* This should never be able to happen but better confirm that. */ 710 if (!kernel_l1pt.pv_pa || (kernel_l1pt.pv_pa & (L1_TABLE_SIZE-1)) != 0) 711 panic("initarm: Failed to align the kernel page directory"); 712 713 /* 714 * Allocate a page for the system page mapped to V0x00000000 715 * This page will just contain the system vectors and can be 716 * shared by all processes. 717 */ 718 alloc_pages(systempage.pv_pa, 1); 719 #if defined(CPU_CORTEXA8) 720 systempage.pv_va = ARM_VECTORS_HIGH; 721 #endif 722 723 /* Allocate stacks for all modes */ 724 valloc_pages(irqstack, IRQ_STACK_SIZE); 725 valloc_pages(abtstack, ABT_STACK_SIZE); 726 valloc_pages(undstack, UND_STACK_SIZE); 727 valloc_pages(kernelstack, UPAGES); 728 729 /* Allocate enough pages for cleaning the Mini-Data cache. */ 730 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 731 KASSERT(xscale_minidata_clean_size <= PAGE_SIZE); 732 #endif 733 valloc_pages(minidataclean, 1); 734 735 #ifdef VERBOSE_INIT_ARM 736 printf("IRQ stack: p0x%08lx v0x%08lx\n", irqstack.pv_pa, 737 irqstack.pv_va); 738 printf("ABT stack: p0x%08lx v0x%08lx\n", abtstack.pv_pa, 739 abtstack.pv_va); 740 printf("UND stack: p0x%08lx v0x%08lx\n", undstack.pv_pa, 741 undstack.pv_va); 742 printf("SVC stack: p0x%08lx v0x%08lx\n", kernelstack.pv_pa, 743 kernelstack.pv_va); 744 #endif 745 746 /* 747 * XXX Defer this to later so that we can reclaim the memory 748 * XXX used by the RedBoot page tables. 749 */ 750 alloc_pages(msgbufphys, round_page(MSGBUFSIZE) / PAGE_SIZE); 751 752 /* 753 * Ok we have allocated physical pages for the primary kernel 754 * page tables 755 */ 756 757 #ifdef VERBOSE_INIT_ARM 758 printf("Creating L1 page table at 0x%08lx\n", kernel_l1pt.pv_pa); 759 #endif 760 761 /* 762 * Now we start construction of the L1 page table 763 * We start by mapping the L2 page tables into the L1. 764 * This means that we can replace L1 mappings later on if necessary 765 */ 766 l1pagetable = kernel_l1pt.pv_va; 767 768 /* Map the L2 pages tables in the L1 page table */ 769 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 770 pmap_link_l2pt(l1pagetable, 0x00000000, 771 &kernel_pt_table[KERNEL_PT_SYS]); 772 #elif defined(CPU_CORTEXA8) 773 pmap_link_l2pt(l1pagetable, ARM_VECTORS_HIGH & ~(0x00400000 - 1), 774 &kernel_pt_table[KERNEL_PT_SYS]); 775 #endif 776 for (loop = 0; loop < KERNEL_PT_KERNEL_NUM; loop++) 777 pmap_link_l2pt(l1pagetable, KERNEL_BASE + loop * 0x00400000, 778 &kernel_pt_table[KERNEL_PT_KERNEL + loop]); 779 for (loop = 0; loop < KERNEL_PT_VMDATA_NUM; loop++) 780 pmap_link_l2pt(l1pagetable, KERNEL_VM_BASE + loop * 0x00400000, 781 &kernel_pt_table[KERNEL_PT_VMDATA + loop]); 782 783 /* update the top of the kernel VM */ 784 pmap_curmaxkvaddr = 785 KERNEL_VM_BASE + (KERNEL_PT_VMDATA_NUM * 0x00400000); 786 787 #ifdef VERBOSE_INIT_ARM 788 printf("Mapping kernel\n"); 789 #endif 790 791 /* Now we fill in the L2 pagetable for the kernel static code/data */ 792 { 793 extern char etext[], _end[]; 794 size_t textsize = (uintptr_t) etext - KERNEL_TEXT_BASE; 795 size_t totalsize = (uintptr_t) _end - KERNEL_TEXT_BASE; 796 u_int logical; 797 798 textsize = (textsize + PGOFSET) & ~PGOFSET; 799 totalsize = (totalsize + PGOFSET) & ~PGOFSET; 800 801 logical = 0x00200000; /* offset of kernel in RAM */ 802 803 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 804 physical_start + logical, textsize, 805 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 806 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 807 physical_start + logical, totalsize - textsize, 808 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 809 } 810 811 #ifdef VERBOSE_INIT_ARM 812 printf("Constructing L2 page tables\n"); 813 #endif 814 815 /* Map the stack pages */ 816 pmap_map_chunk(l1pagetable, irqstack.pv_va, irqstack.pv_pa, 817 IRQ_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 818 pmap_map_chunk(l1pagetable, abtstack.pv_va, abtstack.pv_pa, 819 ABT_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 820 pmap_map_chunk(l1pagetable, undstack.pv_va, undstack.pv_pa, 821 UND_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 822 pmap_map_chunk(l1pagetable, kernelstack.pv_va, kernelstack.pv_pa, 823 UPAGES * PAGE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_CACHE); 824 825 pmap_map_chunk(l1pagetable, kernel_l1pt.pv_va, kernel_l1pt.pv_pa, 826 L1_TABLE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_PAGETABLE); 827 828 for (loop = 0; loop < NUM_KERNEL_PTS; ++loop) { 829 pmap_map_chunk(l1pagetable, kernel_pt_table[loop].pv_va, 830 kernel_pt_table[loop].pv_pa, L2_TABLE_SIZE, 831 VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE); 832 } 833 834 /* Map the Mini-Data cache clean area. */ 835 #if defined(GUMSTIX) 836 xscale_setup_minidata(l1pagetable, minidataclean.pv_va, 837 minidataclean.pv_pa); 838 #endif 839 840 /* Map the vector page. */ 841 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 842 #if 1 843 /* MULTI-ICE requires that page 0 is NC/NB so that it can download the 844 * cache-clean code there. */ 845 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 846 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE); 847 #else 848 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 849 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 850 #endif 851 #elif defined(CPU_CORTEXA8) 852 pmap_map_entry(l1pagetable, ARM_VECTORS_HIGH, systempage.pv_pa, 853 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 854 #endif 855 856 /* 857 * map integrated peripherals at same address in l1pagetable 858 * so that we can continue to use console. 859 */ 860 pmap_devmap_bootstrap(l1pagetable, gumstix_devmap); 861 862 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 863 /* 864 * Give the XScale global cache clean code an appropriately 865 * sized chunk of unmapped VA space starting at 0xff000000 866 * (our device mappings end before this address). 867 */ 868 xscale_cache_clean_addr = 0xff000000U; 869 #endif 870 871 /* 872 * Now we have the real page tables in place so we can switch to them. 873 * Once this is done we will be running with the REAL kernel page 874 * tables. 875 */ 876 877 /* 878 * Update the physical_freestart/physical_freeend/free_pages 879 * variables. 880 */ 881 { 882 extern char _end[]; 883 884 physical_freestart = physical_start + 885 (((((uintptr_t) _end) + PGOFSET) & ~PGOFSET) - 886 KERNEL_BASE); 887 physical_freeend = physical_end; 888 free_pages = 889 (physical_freeend - physical_freestart) / PAGE_SIZE; 890 } 891 892 /* Switch tables */ 893 #ifdef VERBOSE_INIT_ARM 894 printf("freestart = 0x%08lx, free_pages = %d (0x%x)\n", 895 physical_freestart, free_pages, free_pages); 896 printf("switching to new L1 page table @%#lx...", kernel_l1pt.pv_pa); 897 #endif 898 899 cpu_setttb(kernel_l1pt.pv_pa); 900 cpu_tlb_flushID(); 901 cpu_domains(DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)); 902 903 /* 904 * Moved from cpu_startup() as data_abort_handler() references 905 * this during uvm init 906 */ 907 uvm_lwp_setuarea(&lwp0, kernelstack.pv_va); 908 909 #ifdef VERBOSE_INIT_ARM 910 printf("bootstrap done.\n"); 911 #endif 912 913 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 914 arm32_vector_init(ARM_VECTORS_LOW, ARM_VEC_ALL); 915 #elif defined(CPU_CORTEXA8) 916 arm32_vector_init(ARM_VECTORS_HIGH, ARM_VEC_ALL); 917 #endif 918 919 /* 920 * Pages were allocated during the secondary bootstrap for the 921 * stacks for different CPU modes. 922 * We must now set the r13 registers in the different CPU modes to 923 * point to these stacks. 924 * Since the ARM stacks use STMFD etc. we must set r13 to the top end 925 * of the stack memory. 926 */ 927 #ifdef VERBOSE_INIT_ARM 928 printf("init subsystems: stacks "); 929 #endif 930 931 set_stackptr(PSR_IRQ32_MODE, 932 irqstack.pv_va + IRQ_STACK_SIZE * PAGE_SIZE); 933 set_stackptr(PSR_ABT32_MODE, 934 abtstack.pv_va + ABT_STACK_SIZE * PAGE_SIZE); 935 set_stackptr(PSR_UND32_MODE, 936 undstack.pv_va + UND_STACK_SIZE * PAGE_SIZE); 937 938 /* 939 * Well we should set a data abort handler. 940 * Once things get going this will change as we will need a proper 941 * handler. 942 * Until then we will use a handler that just panics but tells us 943 * why. 944 * Initialisation of the vectors will just panic on a data abort. 945 * This just fills in a slighly better one. 946 */ 947 #ifdef VERBOSE_INIT_ARM 948 printf("vectors "); 949 #endif 950 data_abort_handler_address = (u_int)data_abort_handler; 951 prefetch_abort_handler_address = (u_int)prefetch_abort_handler; 952 undefined_handler_address = (u_int)undefinedinstruction_bounce; 953 954 /* Initialise the undefined instruction handlers */ 955 #ifdef VERBOSE_INIT_ARM 956 printf("undefined "); 957 #endif 958 undefined_init(); 959 960 /* Load memory into UVM. */ 961 #ifdef VERBOSE_INIT_ARM 962 printf("page "); 963 #endif 964 uvm_setpagesize(); /* initialize PAGE_SIZE-dependent variables */ 965 uvm_page_physload(atop(physical_freestart), atop(physical_freeend), 966 atop(physical_freestart), atop(physical_freeend), 967 VM_FREELIST_DEFAULT); 968 969 /* Boot strap pmap telling it where the kernel page table is */ 970 #ifdef VERBOSE_INIT_ARM 971 printf("pmap "); 972 #endif 973 pmap_bootstrap(KERNEL_VM_BASE, KERNEL_VM_BASE + KERNEL_VM_SIZE); 974 975 #ifdef __HAVE_MEMORY_DISK__ 976 md_root_setconf(memory_disk, sizeof memory_disk); 977 #endif 978 979 #ifdef BOOTHOWTO 980 boothowto |= BOOTHOWTO; 981 #endif 982 983 #ifdef KGDB 984 if (boothowto & RB_KDB) { 985 kgdb_debug_init = 1; 986 kgdb_connect(1); 987 } 988 #endif 989 990 #if NKSYMS || defined(DDB) || defined(MODULAR) 991 /* Firmware doesn't load symbols. */ 992 ddb_init(0, NULL, NULL); 993 #endif 994 995 #ifdef DDB 996 db_machine_init(); 997 if (boothowto & RB_KDB) 998 Debugger(); 999 #endif 1000 1001 /* We have our own device_register() */ 1002 evbarm_device_register = gumstix_device_register; 1003 1004 /* We return the new stack pointer address */ 1005 return(kernelstack.pv_va + USPACE_SVC_STACK_TOP); 1006 } 1007 1008 #if defined(GUMSTIX) 1009 static void 1010 read_system_serial(void) 1011 { 1012 #define GUMSTIX_SYSTEM_SERIAL_ADDR 0 1013 #define GUMSTIX_SYSTEM_SERIAL_SIZE 8 1014 #define FLASH_OFFSET_INTEL_PROTECTION 0x81 1015 #define FLASH_OFFSET_USER_PROTECTION 0x85 1016 #define FLASH_CMD_READ_ID 0x90 1017 #define FLASH_CMD_RESET 0xff 1018 int i; 1019 char system_serial[GUMSTIX_SYSTEM_SERIAL_SIZE], *src; 1020 char x; 1021 1022 src = (char *)(FLASH_OFFSET_USER_PROTECTION * 2 /*word*/); 1023 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1024 memcpy(system_serial, 1025 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1026 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1027 1028 for (i = 1, x = system_serial[0]; i < sizeof (system_serial); i++) 1029 x &= system_serial[i]; 1030 if (x == 0xff) { 1031 src = (char *)(FLASH_OFFSET_INTEL_PROTECTION * 2 /*word*/); 1032 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1033 memcpy(system_serial, 1034 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1035 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1036 1037 /* 1038 * XXXX: Don't need ??? 1039 * gumstix_serial_hash(system_serial); 1040 */ 1041 } 1042 system_serial_high = system_serial[0] << 24 | system_serial[1] << 16 | 1043 system_serial[2] << 8 | system_serial[3]; 1044 system_serial_low = system_serial[4] << 24 | system_serial[5] << 16 | 1045 system_serial[6] << 8 | system_serial[7]; 1046 1047 printf("system serial: 0x"); 1048 for (i = 0; i < sizeof (system_serial); i++) 1049 printf("%02x", system_serial[i]); 1050 printf("\n"); 1051 } 1052 #endif 1053 1054 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1055 static const char busheader_name[] = "busheader="; 1056 #endif 1057 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1058 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1059 static const char expansion_name[] = "expansion="; 1060 #endif 1061 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1062 static const char console_name[] = "console="; 1063 #endif 1064 static void 1065 process_kernel_args(int argc, char *argv[]) 1066 { 1067 int gxio_configured = 0, i, j; 1068 1069 boothowto = 0; 1070 1071 for (i = 1, j = 0; i < argc; i++) { 1072 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1073 if (!strncmp(argv[i], busheader_name, strlen(busheader_name))) { 1074 /* Configure for GPIOs of busheader side */ 1075 gxio_config_expansion(argv[i] + strlen(busheader_name)); 1076 gxio_configured = 1; 1077 continue; 1078 } 1079 #endif 1080 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1081 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1082 if (!strncmp(argv[i], expansion_name, strlen(expansion_name))) { 1083 /* Configure expansion */ 1084 gxio_config_expansion(argv[i] + strlen(expansion_name)); 1085 gxio_configured = 1; 1086 continue; 1087 } 1088 #endif 1089 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1090 if (!strncmp(argv[i], console_name, strlen(console_name))) { 1091 strncpy(console, argv[i] + strlen(console_name), 1092 sizeof(console)); 1093 consinit(); 1094 } 1095 #endif 1096 if (j == MAX_BOOT_STRING) { 1097 *(bootargs + j) = '\0'; 1098 continue; 1099 } 1100 if (j != 0) 1101 *(bootargs + j++) = ' '; 1102 strncpy(bootargs + j, argv[i], MAX_BOOT_STRING - j); 1103 j += strlen(argv[i]); 1104 } 1105 boot_args = bootargs; 1106 1107 parse_mi_bootargs(boot_args); 1108 1109 if (!gxio_configured) 1110 gxio_config_expansion(NULL); 1111 } 1112 1113 static void 1114 process_kernel_args_liner(char *args) 1115 { 1116 int i = 0; 1117 char *p = NULL; 1118 1119 boothowto = 0; 1120 1121 strncpy(bootargs, args, sizeof(bootargs)); 1122 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1123 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1124 { 1125 char *q; 1126 1127 if ((p = strstr(bootargs, expansion_name))) 1128 q = p + strlen(expansion_name); 1129 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1130 else if ((p = strstr(bootargs, busheader_name))) 1131 q = p + strlen(busheader_name); 1132 #endif 1133 if (p) { 1134 char expansion[256], c; 1135 1136 i = 0; 1137 do { 1138 c = *(q + i); 1139 if (c == ' ') 1140 c = '\0'; 1141 expansion[i++] = c; 1142 } while (c != '\0' && i < sizeof(expansion)); 1143 gxio_config_expansion(expansion); 1144 strcpy(p, q + i); 1145 } 1146 } 1147 #endif 1148 if (p == NULL) 1149 gxio_config_expansion(NULL); 1150 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1151 p = strstr(bootargs, console_name); 1152 if (p != NULL) { 1153 char c; 1154 1155 i = 0; 1156 do { 1157 c = *(p + strlen(console_name) + i); 1158 if (c == ' ') 1159 c = '\0'; 1160 console[i++] = c; 1161 } while (c != '\0' && i < sizeof(console)); 1162 consinit(); 1163 strcpy(p, p + strlen(console_name) + i); 1164 } 1165 #endif 1166 boot_args = bootargs; 1167 1168 parse_mi_bootargs(boot_args); 1169 } 1170 1171 #ifdef KGDB 1172 #ifndef KGDB_DEVNAME 1173 #define KGDB_DEVNAME "ffuart" 1174 #endif 1175 const char kgdb_devname[] = KGDB_DEVNAME; 1176 1177 #ifndef KGDB_DEVRATE 1178 #define KGDB_DEVRATE CONSPEED 1179 #endif 1180 int kgdb_devrate = KGDB_DEVRATE; 1181 1182 #if (NCOM > 0) 1183 #ifndef KGDB_DEVMODE 1184 #define KGDB_DEVMODE CONMODE 1185 #endif 1186 int comkgdbmode = KGDB_DEVMODE; 1187 #endif /* NCOM */ 1188 1189 #endif /* KGDB */ 1190 1191 1192 void 1193 consinit(void) 1194 { 1195 static int consinit_called = 0; 1196 1197 if (consinit_called != 0) 1198 return; 1199 1200 consinit_called = 1; 1201 1202 #if NCOM > 0 1203 1204 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1205 /* Maybe passed Linux's bootargs 'console=ttyS?,<speed>...' */ 1206 if (strncmp(console, "ttyS", 4) == 0 && console[5] == ',') { 1207 int i; 1208 1209 comcnspeed = 0; 1210 for (i = 6; i < strlen(console) && isdigit(console[i]); i++) 1211 comcnspeed = comcnspeed * 10 + (console[i] - '0'); 1212 } 1213 #endif 1214 1215 #if defined(GUMSTIX) 1216 1217 #ifdef FFUARTCONSOLE 1218 #ifdef KGDB 1219 if (strcmp(kgdb_devname, "ffuart") == 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, "ffuart") == 0 || 1225 strncmp(console, "ttyS0,", 6) == 0) 1226 #endif 1227 { 1228 int rv; 1229 1230 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_FFUART_BASE, 1231 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1232 if (rv == 0) { 1233 pxa2x0_clkman_config(CKEN_FFUART, 1); 1234 return; 1235 } 1236 } 1237 #endif /* FFUARTCONSOLE */ 1238 1239 #ifdef STUARTCONSOLE 1240 #ifdef KGDB 1241 if (strcmp(kgdb_devname, "stuart") == 0) { 1242 /* port is reserved for kgdb */ 1243 } else 1244 #endif 1245 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1246 if (console[0] == '\0' || strcasecmp(console, "stuart") == 0) 1247 #endif 1248 { 1249 int rv; 1250 1251 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_STUART_BASE, 1252 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1253 if (rv == 0) { 1254 pxa2x0_clkman_config(CKEN_STUART, 1); 1255 return; 1256 } 1257 } 1258 #endif /* STUARTCONSOLE */ 1259 1260 #ifdef BTUARTCONSOLE 1261 #ifdef KGDB 1262 if (strcmp(kgdb_devname, "btuart") == 0) { 1263 /* port is reserved for kgdb */ 1264 } else 1265 #endif 1266 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1267 if (console[0] == '\0' || strcasecmp(console, "btuart") == 0) 1268 #endif 1269 { 1270 int rv; 1271 1272 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_BTUART_BASE, 1273 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1274 if (rv == 0) { 1275 pxa2x0_clkman_config(CKEN_BTUART, 1); 1276 return; 1277 } 1278 } 1279 #endif /* BTUARTCONSOLE */ 1280 1281 #ifdef HWUARTCONSOLE 1282 #ifdef KGDB 1283 if (strcmp(kgdb_devname, "hwuart") == 0) { 1284 /* port is reserved for kgdb */ 1285 } else 1286 #endif 1287 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1288 if (console[0] == '\0' || strcasecmp(console, "hwuart") == 0) 1289 #endif 1290 { 1291 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_HWUART_BASE, 1292 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1293 if (rv == 0) { 1294 pxa2x0_clkman_config(CKEN_HWUART, 1); 1295 return; 1296 } 1297 } 1298 #endif /* HWUARTCONSOLE */ 1299 1300 #elif defined(OVERO) 1301 1302 if (comcnattach(&omap_a4x_bs_tag, 0x49020000, comcnspeed, 1303 OMAP_COM_FREQ, COM_TYPE_NORMAL, comcnmode) == 0) 1304 return; 1305 1306 #endif /* GUMSTIX or OVERO */ 1307 1308 #endif /* NCOM */ 1309 1310 #if NLCD > 0 1311 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1312 if (console[0] == '\0' || strcasecmp(console, "lcd") == 0) 1313 #endif 1314 { 1315 gxlcd_cnattach(); 1316 } 1317 #endif 1318 } 1319 1320 #ifdef KGDB 1321 static void 1322 kgdb_port_init(void) 1323 { 1324 #if (NCOM > 0) && defined(COM_PXA2X0) 1325 paddr_t paddr = 0; 1326 int cken = 0; 1327 1328 if (0 == strcmp(kgdb_devname, "ffuart")) { 1329 paddr = PXA2X0_FFUART_BASE; 1330 cken = CKEN_FFUART; 1331 } else if (0 == strcmp(kgdb_devname, "stuart")) { 1332 paddr = PXA2X0_STUART_BASE; 1333 cken = CKEN_STUART; 1334 } else if (0 == strcmp(kgdb_devname, "btuart")) { 1335 paddr = PXA2X0_BTUART_BASE; 1336 cken = CKEN_BTUART; 1337 } else if (0 == strcmp(kgdb_devname, "hwuart")) { 1338 paddr = PXA2X0_HWUART_BASE; 1339 cken = CKEN_HWUART; 1340 } 1341 1342 if (paddr && 1343 0 == com_kgdb_attach(&pxa2x0_a4x_bs_tag, paddr, 1344 kgdb_devrate, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comkgdbmode)) { 1345 1346 pxa2x0_clkman_config(cken, 1); 1347 } 1348 1349 #endif 1350 } 1351 #endif 1352 1353 static void 1354 gumstix_device_register(device_t dev, void *aux) 1355 { 1356 1357 if (device_is_a(dev, "ohci")) { 1358 if (prop_dictionary_set_bool(device_properties(dev), 1359 "Ganged-power-mask-on-port1", 1) == false) { 1360 printf("WARNING: unable to set power-mask for port1" 1361 " property for %s\n", dev->dv_xname); 1362 } 1363 if (prop_dictionary_set_bool(device_properties(dev), 1364 "Ganged-power-mask-on-port2", 1) == false) { 1365 printf("WARNING: unable to set power-mask for port2" 1366 " property for %s\n", dev->dv_xname); 1367 } 1368 if (prop_dictionary_set_bool(device_properties(dev), 1369 "Ganged-power-mask-on-port3", 1) == false) { 1370 printf("WARNING: unable to set power-mask for port3" 1371 " property for %s\n", dev->dv_xname); 1372 } 1373 } 1374 } 1375
Indexes created Tue Oct 28 12:10:06 GMT 2025