gumstix_machdep.c revision 1.27
1 /* $NetBSD: gumstix_machdep.c,v 1.27 2010/07/10 08:17:48 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_cputypes.h" 141 #include "opt_gumstix.h" 142 #include "opt_ddb.h" 143 #include "opt_kgdb.h" 144 #include "opt_pmap_debug.h" 145 #include "opt_md.h" 146 #include "opt_modular.h" 147 #include "opt_com.h" 148 #include "md.h" 149 150 #include <sys/param.h> 151 #include <sys/conf.h> 152 #include <sys/device.h> 153 #include <sys/exec.h> 154 #include <sys/kernel.h> 155 #include <sys/ksyms.h> 156 #include <sys/msgbuf.h> 157 #include <sys/proc.h> 158 #include <sys/reboot.h> 159 #include <sys/systm.h> 160 #include <sys/termios.h> 161 162 #include <machine/autoconf.h> 163 #include <machine/bootconfig.h> 164 #include <machine/bus.h> 165 #include <machine/cpu.h> 166 #include <machine/db_machdep.h> 167 #include <machine/frame.h> 168 169 #include <arm/arm32/machdep.h> 170 #include <arm/omap/omap2_reg.h> 171 #include <arm/omap/omap_var.h> 172 #include <arm/omap/omap_com.h> 173 #include <arm/undefined.h> 174 #include <arm/xscale/pxa2x0reg.h> 175 #include <arm/xscale/pxa2x0var.h> 176 #include <arm/xscale/pxa2x0_gpio.h> 177 #include <evbarm/gumstix/gumstixreg.h> 178 #include <evbarm/gumstix/gumstixvar.h> 179 180 #include <uvm/uvm_extern.h> 181 182 #include <dev/cons.h> 183 #include <dev/md.h> 184 185 #include <ddb/db_sym.h> 186 #include <ddb/db_extern.h> 187 #ifdef KGDB 188 #include <sys/kgdb.h> 189 #endif 190 191 /* Kernel text starts 2MB in from the bottom of the kernel address space. */ 192 #define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00200000) 193 #ifndef KERNEL_VM_BASE 194 #define KERNEL_VM_BASE (KERNEL_BASE + 0x01000000) 195 #endif 196 197 /* 198 * The range 0xc1000000 - 0xccffffff is available for kernel VM space 199 * Core-logic registers and I/O mappings occupy 0xfd000000 - 0xffffffff 200 */ 201 #define KERNEL_VM_SIZE 0x0C000000 202 203 204 /* 205 * Address to call from cpu_reset() to reset the machine. 206 * This is machine architecture dependant as it varies depending 207 * on where the ROM appears when you turn the MMU off. 208 */ 209 210 u_int cpu_reset_address = 0; 211 212 /* Define various stack sizes in pages */ 213 #define IRQ_STACK_SIZE 1 214 #define ABT_STACK_SIZE 1 215 #define UND_STACK_SIZE 1 216 217 BootConfig bootconfig; /* Boot config storage */ 218 static char bootargs[MAX_BOOT_STRING]; 219 char *boot_args = NULL; 220 221 uint32_t system_serial_high; 222 uint32_t system_serial_low; 223 224 vm_offset_t physical_start; 225 vm_offset_t physical_freestart; 226 vm_offset_t physical_freeend; 227 vm_offset_t physical_end; 228 u_int free_pages; 229 230 /*int debug_flags;*/ 231 #ifndef PMAP_STATIC_L1S 232 int max_processes = 64; /* Default number */ 233 #endif /* !PMAP_STATIC_L1S */ 234 235 /* Physical and virtual addresses for some global pages */ 236 pv_addr_t irqstack; 237 pv_addr_t undstack; 238 pv_addr_t abtstack; 239 pv_addr_t kernelstack; 240 pv_addr_t minidataclean; 241 242 vm_offset_t msgbufphys; 243 244 extern u_int data_abort_handler_address; 245 extern u_int prefetch_abort_handler_address; 246 extern u_int undefined_handler_address; 247 248 #ifdef PMAP_DEBUG 249 extern int pmap_debug_level; 250 #endif 251 252 #define KERNEL_PT_SYS 0 /* Page table for mapping proc0 zero page */ 253 #define KERNEL_PT_KERNEL 1 /* Page table for mapping kernel */ 254 #define KERNEL_PT_KERNEL_NUM ((KERNEL_VM_BASE - KERNEL_BASE) >> 22) 255 #define KERNEL_PT_VMDATA (KERNEL_PT_KERNEL+KERNEL_PT_KERNEL_NUM) 256 /* Page tables for mapping kernel VM */ 257 #define KERNEL_PT_VMDATA_NUM 4 /* start with 16MB of KVM */ 258 #define NUM_KERNEL_PTS (KERNEL_PT_VMDATA + KERNEL_PT_VMDATA_NUM) 259 260 pv_addr_t kernel_pt_table[NUM_KERNEL_PTS]; 261 262 /* Prototypes */ 263 #if defined(GUMSTIX) 264 static void read_system_serial(void); 265 #endif 266 static void process_kernel_args(int, char *[]); 267 static void process_kernel_args_liner(char *); 268 #ifdef KGDB 269 static void kgdb_port_init(void); 270 #endif 271 272 bs_protos(bs_notimpl); 273 274 #include "com.h" 275 #if NCOM > 0 276 #include <dev/ic/comreg.h> 277 #include <dev/ic/comvar.h> 278 #endif 279 280 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 281 #include "lcd.h" 282 #endif 283 284 #ifndef CONSPEED 285 #define CONSPEED B115200 /* It's a setting of the default of u-boot */ 286 #endif 287 #ifndef CONMODE 288 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 289 #endif 290 291 int comcnspeed = CONSPEED; 292 int comcnmode = CONMODE; 293 294 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 295 static char console[16]; 296 #endif 297 298 extern void gxio_config_pin(void); 299 extern void gxio_config_expansion(char *); 300 301 /* 302 * void cpu_reboot(int howto, char *bootstr) 303 * 304 * Deal with any syncing, unmounting, dumping and shutdown hooks, 305 * then reset the CPU. 306 */ 307 void 308 cpu_reboot(int howto, char *bootstr) 309 { 310 311 #ifdef DIAGNOSTIC 312 /* info */ 313 printf("boot: howto=%08x curproc=%p\n", howto, curproc); 314 #endif 315 316 /* 317 * If we are still cold then hit the air brakes 318 * and crash to earth fast 319 */ 320 if (cold) { 321 doshutdownhooks(); 322 pmf_system_shutdown(boothowto); 323 printf("The operating system has halted.\n"); 324 printf("Please press any key to reboot.\n\n"); 325 cngetc(); 326 printf("rebooting...\n"); 327 cpu_reset(); 328 /*NOTREACHED*/ 329 } 330 331 /* 332 * If RB_NOSYNC was not specified sync the discs. 333 * Note: Unless cold is set to 1 here, syslogd will die during the 334 * unmount. It looks like syslogd is getting woken up only to find 335 * that it cannot page part of the binary in as the filesystem has 336 * been unmounted. 337 */ 338 if (!(howto & RB_NOSYNC)) 339 bootsync(); 340 341 /* Say NO to interrupts */ 342 splhigh(); 343 344 /* Do a dump if requested. */ 345 if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP) 346 dumpsys(); 347 348 /* Run any shutdown hooks */ 349 doshutdownhooks(); 350 351 pmf_system_shutdown(boothowto); 352 353 /* Make sure IRQ's are disabled */ 354 IRQdisable; 355 356 if (howto & RB_HALT) { 357 printf("The operating system has halted.\n"); 358 printf("Please press any key to reboot.\n\n"); 359 cngetc(); 360 } 361 362 printf("rebooting...\n"); 363 cpu_reset(); 364 /*NOTREACHED*/ 365 } 366 367 static inline pd_entry_t * 368 read_ttb(void) 369 { 370 long ttb; 371 372 __asm volatile("mrc p15, 0, %0, c2, c0, 0" : "=r" (ttb)); 373 374 return (pd_entry_t *)(ttb & ~((1<<14)-1)); 375 } 376 377 /* 378 * Static device mappings. These peripheral registers are mapped at 379 * fixed virtual addresses very early in initarm() so that we can use 380 * them while booting the kernel, and stay at the same address 381 * throughout whole kernel's life time. 382 * 383 * We use this table twice; once with bootstrap page table, and once 384 * with kernel's page table which we build up in initarm(). 385 * 386 * Since we map these registers into the bootstrap page table using 387 * pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map 388 * registers segment-aligned and segment-rounded in order to avoid 389 * using the 2nd page tables. 390 */ 391 392 #define _A(a) ((a) & ~L1_S_OFFSET) 393 #define _S(s) (((s) + L1_S_SIZE - 1) & ~(L1_S_SIZE-1)) 394 395 static const struct pmap_devmap gumstix_devmap[] = { 396 #if defined(GUMSTIX) 397 { 398 GUMSTIX_GPIO_VBASE, 399 _A(PXA2X0_GPIO_BASE), 400 _S(PXA250_GPIO_SIZE), 401 VM_PROT_READ | VM_PROT_WRITE, 402 PTE_NOCACHE, 403 }, 404 { 405 GUMSTIX_CLKMAN_VBASE, 406 _A(PXA2X0_CLKMAN_BASE), 407 _S(PXA2X0_CLKMAN_SIZE), 408 VM_PROT_READ | VM_PROT_WRITE, 409 PTE_NOCACHE, 410 }, 411 { 412 GUMSTIX_INTCTL_VBASE, 413 _A(PXA2X0_INTCTL_BASE), 414 _S(PXA2X0_INTCTL_SIZE), 415 VM_PROT_READ | VM_PROT_WRITE, 416 PTE_NOCACHE, 417 }, 418 { 419 GUMSTIX_FFUART_VBASE, 420 _A(PXA2X0_FFUART_BASE), 421 _S(4 * COM_NPORTS), 422 VM_PROT_READ | VM_PROT_WRITE, 423 PTE_NOCACHE, 424 }, 425 { 426 GUMSTIX_STUART_VBASE, 427 _A(PXA2X0_STUART_BASE), 428 _S(4 * COM_NPORTS), 429 VM_PROT_READ | VM_PROT_WRITE, 430 PTE_NOCACHE, 431 }, 432 { 433 GUMSTIX_BTUART_VBASE, 434 _A(PXA2X0_BTUART_BASE), 435 _S(4 * COM_NPORTS), 436 VM_PROT_READ | VM_PROT_WRITE, 437 PTE_NOCACHE, 438 }, 439 { 440 GUMSTIX_HWUART_VBASE, 441 _A(PXA2X0_HWUART_BASE), 442 _S(4 * COM_NPORTS), 443 VM_PROT_READ | VM_PROT_WRITE, 444 PTE_NOCACHE, 445 }, 446 { 447 GUMSTIX_LCDC_VBASE, 448 _A(PXA2X0_LCDC_BASE), 449 _S(4 * COM_NPORTS), 450 VM_PROT_READ | VM_PROT_WRITE, 451 PTE_NOCACHE, 452 }, 453 #elif defined(OVERO) 454 { 455 OVERO_L4_PERIPHERAL_VBASE, 456 _A(OMAP3530_L4_PERIPHERAL_BASE), 457 _S(OMAP3530_L4_PERIPHERAL_SIZE), 458 VM_PROT_READ | VM_PROT_WRITE, 459 PTE_NOCACHE 460 }, 461 #endif 462 { 0, 0, 0, 0, 0 } 463 }; 464 465 #undef _A 466 #undef _S 467 468 469 /* 470 * u_int initarm(...) 471 * 472 * Initial entry point on startup. This gets called before main() is 473 * entered. 474 * It should be responsible for setting up everything that must be 475 * in place when main is called. 476 * This includes 477 * Taking a copy of the boot configuration structure. 478 * Initialising the physical console so characters can be printed. 479 * Setting up page tables for the kernel 480 * Relocating the kernel to the bottom of physical memory 481 */ 482 u_int 483 initarm(void *arg) 484 { 485 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 486 #ifdef DIAGNOSTIC 487 extern vsize_t xscale_minidata_clean_size; /* used in KASSERT */ 488 #endif 489 extern vaddr_t xscale_cache_clean_addr; 490 #endif 491 extern uint32_t *u_boot_args[]; 492 extern uint32_t ram_size; 493 enum { r0 = 0, r1 = 1, r2 = 2, r3 = 3 }; /* args from u-boot */ 494 int loop; 495 int loop1; 496 u_int l1pagetable; 497 paddr_t memstart; 498 psize_t memsize; 499 500 /* 501 * U-Boot doesn't use the virtual memory. 502 * 503 * Gumstix (basix, connex, verdex, verdex-pro): 504 * Physical Address Range Description 505 * ----------------------- ---------------------------------- 506 * 0x00000000 - 0x00ffffff flash Memory (16MB or 4MB) 507 * 0x40000000 - 0x480fffff Processor Registers 508 * 0xa0000000 - 0xa3ffffff SDRAM Bank 0 (64MB or 128MB) 509 * 510 * Overo: 511 * Physical Address Range Description 512 * ----------------------- ---------------------------------- 513 */ 514 515 /* 516 * Heads up ... Setup the CPU / MMU / TLB functions 517 */ 518 if (set_cpufuncs()) 519 panic("cpu not recognized!"); 520 521 /* map some peripheral registers at static I/O area */ 522 pmap_devmap_bootstrap((vaddr_t)read_ttb(), gumstix_devmap); 523 524 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 525 /* start 32.768kHz OSC */ 526 ioreg_write(GUMSTIX_CLKMAN_VBASE + CLKMAN_OSCC, OSCC_OON); 527 528 /* Get ready for splfoo() */ 529 pxa2x0_intr_bootstrap(GUMSTIX_INTCTL_VBASE); 530 531 /* setup GPIO for {FF,ST,HW}UART. */ 532 pxa2x0_gpio_bootstrap(GUMSTIX_GPIO_VBASE); 533 534 pxa2x0_clkman_bootstrap(GUMSTIX_CLKMAN_VBASE); 535 #elif defined(CPU_CORTEXA8) 536 { 537 void cortexa8_pmc_ccnt_init(void); 538 539 cortexa8_pmc_ccnt_init(); 540 } 541 #endif 542 543 cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT); 544 545 /* configure GPIOs. */ 546 gxio_config_pin(); 547 548 549 #ifndef GUMSTIX_NETBSD_ARGS_CONSOLE 550 consinit(); 551 #endif 552 #ifdef KGDB 553 kgdb_port_init(); 554 #endif 555 556 /* 557 * Examine the boot args string for options we need to know about 558 * now. 559 */ 560 #if defined(GUMSTIX) 561 #define SDRAM_START 0xa0000000UL 562 #elif defined(OVERO) 563 #define SDRAM_START 0x80000000UL 564 #endif 565 if (((uint32_t)u_boot_args[r0] & 0xf0000000) != SDRAM_START) 566 /* Maybe r0 is 'argc'. We are booted by command 'go'. */ 567 process_kernel_args((int)u_boot_args[r0], 568 (char **)u_boot_args[r1]); 569 else 570 /* 571 * Maybe r3 is 'boot args string' of 'bootm'. This string is 572 * linely. 573 */ 574 process_kernel_args_liner((char *)u_boot_args[r3]); 575 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 576 consinit(); 577 #endif 578 579 /* Talk to the user */ 580 printf("\nNetBSD/evbarm (%s) booting ...\n", 581 #if defined(GUMSTIX) 582 "gumstix" 583 #elif defined(OVERO) 584 "overo" 585 #else 586 "???" 587 #endif 588 ); 589 590 /* Read system serial */ 591 #if defined(GUMSTIX) 592 read_system_serial(); 593 #endif 594 595 memstart = SDRAM_START; 596 memsize = ram_size; 597 598 #ifdef VERBOSE_INIT_ARM 599 printf("initarm: Configuring system ...\n"); 600 #endif 601 602 /* Fake bootconfig structure for the benefit of pmap.c */ 603 /* XXX must make the memory description h/w independent */ 604 bootconfig.dramblocks = 1; 605 bootconfig.dram[0].address = memstart; 606 bootconfig.dram[0].pages = memsize / PAGE_SIZE; 607 608 /* 609 * Set up the variables that define the availablilty of 610 * physical memory. For now, we're going to set 611 * physical_freestart to 0xa0200000 (where the kernel 612 * was loaded), and allocate the memory we need downwards. 613 * If we get too close to the L1 table that we set up, we 614 * will panic. We will update physical_freestart and 615 * physical_freeend later to reflect what pmap_bootstrap() 616 * wants to see. 617 * 618 * XXX pmap_bootstrap() needs an enema. 619 */ 620 physical_start = bootconfig.dram[0].address; 621 physical_end = physical_start + memsize; 622 623 #if defined(GUMSTIX) 624 physical_freestart = 0xa0009000UL; 625 physical_freeend = 0xa0200000UL; 626 #elif defined(OVERO) 627 physical_freestart = 0x80009000UL; 628 physical_freeend = 0x80200000UL; 629 #endif 630 631 physmem = (physical_end - physical_start) / PAGE_SIZE; 632 633 #ifdef VERBOSE_INIT_ARM 634 /* Tell the user about the memory */ 635 printf("physmemory: %d pages at 0x%08lx -> 0x%08lx\n", physmem, 636 physical_start, physical_end - 1); 637 #endif 638 639 /* 640 * Okay, the kernel starts 2MB in from the bottom of physical 641 * memory. We are going to allocate our bootstrap pages downwards 642 * from there. 643 * 644 * We need to allocate some fixed page tables to get the kernel 645 * going. We allocate one page directory and a number of page 646 * tables and store the physical addresses in the kernel_pt_table 647 * array. 648 * 649 * The kernel page directory must be on a 16K boundary. The page 650 * tables must be on 4K bounaries. What we do is allocate the 651 * page directory on the first 16K boundary that we encounter, and 652 * the page tables on 4K boundaries otherwise. Since we allocate 653 * at least 3 L2 page tables, we are guaranteed to encounter at 654 * least one 16K aligned region. 655 */ 656 657 #ifdef VERBOSE_INIT_ARM 658 printf("Allocating page tables\n"); 659 #endif 660 661 free_pages = (physical_freeend - physical_freestart) / PAGE_SIZE; 662 663 #ifdef VERBOSE_INIT_ARM 664 printf("freestart = 0x%08lx, free_pages = %d (0x%08x)\n", 665 physical_freestart, free_pages, free_pages); 666 #endif 667 668 /* Define a macro to simplify memory allocation */ 669 #define valloc_pages(var, np) \ 670 alloc_pages((var).pv_pa, (np)); \ 671 (var).pv_va = KERNEL_BASE + (var).pv_pa - physical_start; 672 673 #define alloc_pages(var, np) \ 674 physical_freeend -= ((np) * PAGE_SIZE); \ 675 if (physical_freeend < physical_freestart) \ 676 panic("initarm: out of memory"); \ 677 (var) = physical_freeend; \ 678 free_pages -= (np); \ 679 memset((char *)(var), 0, ((np) * PAGE_SIZE)); 680 681 loop1 = 0; 682 for (loop = 0; loop <= NUM_KERNEL_PTS; ++loop) { 683 /* Are we 16KB aligned for an L1 ? */ 684 if ((physical_freeend & (L1_TABLE_SIZE - 1)) == 0 && 685 kernel_l1pt.pv_pa == 0) { 686 valloc_pages(kernel_l1pt, L1_TABLE_SIZE / PAGE_SIZE); 687 } else { 688 valloc_pages(kernel_pt_table[loop1], 689 L2_TABLE_SIZE / PAGE_SIZE); 690 ++loop1; 691 } 692 } 693 694 /* This should never be able to happen but better confirm that. */ 695 if (!kernel_l1pt.pv_pa || (kernel_l1pt.pv_pa & (L1_TABLE_SIZE-1)) != 0) 696 panic("initarm: Failed to align the kernel page directory"); 697 698 /* 699 * Allocate a page for the system page mapped to V0x00000000 700 * This page will just contain the system vectors and can be 701 * shared by all processes. 702 */ 703 alloc_pages(systempage.pv_pa, 1); 704 #if defined(CPU_CORTEXA8) 705 systempage.pv_va = ARM_VECTORS_HIGH; 706 #endif 707 708 /* Allocate stacks for all modes */ 709 valloc_pages(irqstack, IRQ_STACK_SIZE); 710 valloc_pages(abtstack, ABT_STACK_SIZE); 711 valloc_pages(undstack, UND_STACK_SIZE); 712 valloc_pages(kernelstack, UPAGES); 713 714 /* Allocate enough pages for cleaning the Mini-Data cache. */ 715 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 716 KASSERT(xscale_minidata_clean_size <= PAGE_SIZE); 717 #endif 718 valloc_pages(minidataclean, 1); 719 720 #ifdef VERBOSE_INIT_ARM 721 printf("IRQ stack: p0x%08lx v0x%08lx\n", irqstack.pv_pa, 722 irqstack.pv_va); 723 printf("ABT stack: p0x%08lx v0x%08lx\n", abtstack.pv_pa, 724 abtstack.pv_va); 725 printf("UND stack: p0x%08lx v0x%08lx\n", undstack.pv_pa, 726 undstack.pv_va); 727 printf("SVC stack: p0x%08lx v0x%08lx\n", kernelstack.pv_pa, 728 kernelstack.pv_va); 729 #endif 730 731 /* 732 * XXX Defer this to later so that we can reclaim the memory 733 * XXX used by the RedBoot page tables. 734 */ 735 alloc_pages(msgbufphys, round_page(MSGBUFSIZE) / PAGE_SIZE); 736 737 /* 738 * Ok we have allocated physical pages for the primary kernel 739 * page tables 740 */ 741 742 #ifdef VERBOSE_INIT_ARM 743 printf("Creating L1 page table at 0x%08lx\n", kernel_l1pt.pv_pa); 744 #endif 745 746 /* 747 * Now we start construction of the L1 page table 748 * We start by mapping the L2 page tables into the L1. 749 * This means that we can replace L1 mappings later on if necessary 750 */ 751 l1pagetable = kernel_l1pt.pv_va; 752 753 /* Map the L2 pages tables in the L1 page table */ 754 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 755 pmap_link_l2pt(l1pagetable, 0x00000000, 756 &kernel_pt_table[KERNEL_PT_SYS]); 757 #elif defined(CPU_CORTEXA8) 758 pmap_link_l2pt(l1pagetable, ARM_VECTORS_HIGH & ~(0x00400000 - 1), 759 &kernel_pt_table[KERNEL_PT_SYS]); 760 #endif 761 for (loop = 0; loop < KERNEL_PT_KERNEL_NUM; loop++) 762 pmap_link_l2pt(l1pagetable, KERNEL_BASE + loop * 0x00400000, 763 &kernel_pt_table[KERNEL_PT_KERNEL + loop]); 764 for (loop = 0; loop < KERNEL_PT_VMDATA_NUM; loop++) 765 pmap_link_l2pt(l1pagetable, KERNEL_VM_BASE + loop * 0x00400000, 766 &kernel_pt_table[KERNEL_PT_VMDATA + loop]); 767 768 /* update the top of the kernel VM */ 769 pmap_curmaxkvaddr = 770 KERNEL_VM_BASE + (KERNEL_PT_VMDATA_NUM * 0x00400000); 771 772 #ifdef VERBOSE_INIT_ARM 773 printf("Mapping kernel\n"); 774 #endif 775 776 /* Now we fill in the L2 pagetable for the kernel static code/data */ 777 { 778 extern char etext[], _end[]; 779 size_t textsize = (uintptr_t) etext - KERNEL_TEXT_BASE; 780 size_t totalsize = (uintptr_t) _end - KERNEL_TEXT_BASE; 781 u_int logical; 782 783 textsize = (textsize + PGOFSET) & ~PGOFSET; 784 totalsize = (totalsize + PGOFSET) & ~PGOFSET; 785 786 logical = 0x00200000; /* offset of kernel in RAM */ 787 788 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 789 physical_start + logical, textsize, 790 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 791 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 792 physical_start + logical, totalsize - textsize, 793 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 794 } 795 796 #ifdef VERBOSE_INIT_ARM 797 printf("Constructing L2 page tables\n"); 798 #endif 799 800 /* Map the stack pages */ 801 pmap_map_chunk(l1pagetable, irqstack.pv_va, irqstack.pv_pa, 802 IRQ_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 803 pmap_map_chunk(l1pagetable, abtstack.pv_va, abtstack.pv_pa, 804 ABT_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 805 pmap_map_chunk(l1pagetable, undstack.pv_va, undstack.pv_pa, 806 UND_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 807 pmap_map_chunk(l1pagetable, kernelstack.pv_va, kernelstack.pv_pa, 808 UPAGES * PAGE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_CACHE); 809 810 pmap_map_chunk(l1pagetable, kernel_l1pt.pv_va, kernel_l1pt.pv_pa, 811 L1_TABLE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_PAGETABLE); 812 813 for (loop = 0; loop < NUM_KERNEL_PTS; ++loop) { 814 pmap_map_chunk(l1pagetable, kernel_pt_table[loop].pv_va, 815 kernel_pt_table[loop].pv_pa, L2_TABLE_SIZE, 816 VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE); 817 } 818 819 /* Map the Mini-Data cache clean area. */ 820 #if defined(GUMSTIX) 821 xscale_setup_minidata(l1pagetable, minidataclean.pv_va, 822 minidataclean.pv_pa); 823 #endif 824 825 /* Map the vector page. */ 826 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 827 #if 1 828 /* MULTI-ICE requires that page 0 is NC/NB so that it can download the 829 * cache-clean code there. */ 830 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 831 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE); 832 #else 833 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 834 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 835 #endif 836 #elif defined(CPU_CORTEXA8) 837 pmap_map_entry(l1pagetable, ARM_VECTORS_HIGH, systempage.pv_pa, 838 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 839 #endif 840 841 /* 842 * map integrated peripherals at same address in l1pagetable 843 * so that we can continue to use console. 844 */ 845 pmap_devmap_bootstrap(l1pagetable, gumstix_devmap); 846 847 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 848 /* 849 * Give the XScale global cache clean code an appropriately 850 * sized chunk of unmapped VA space starting at 0xff000000 851 * (our device mappings end before this address). 852 */ 853 xscale_cache_clean_addr = 0xff000000U; 854 #endif 855 856 /* 857 * Now we have the real page tables in place so we can switch to them. 858 * Once this is done we will be running with the REAL kernel page 859 * tables. 860 */ 861 862 /* 863 * Update the physical_freestart/physical_freeend/free_pages 864 * variables. 865 */ 866 { 867 extern char _end[]; 868 869 physical_freestart = physical_start + 870 (((((uintptr_t) _end) + PGOFSET) & ~PGOFSET) - 871 KERNEL_BASE); 872 physical_freeend = physical_end; 873 free_pages = 874 (physical_freeend - physical_freestart) / PAGE_SIZE; 875 } 876 877 /* Switch tables */ 878 #ifdef VERBOSE_INIT_ARM 879 printf("freestart = 0x%08lx, free_pages = %d (0x%x)\n", 880 physical_freestart, free_pages, free_pages); 881 printf("switching to new L1 page table @%#lx...", kernel_l1pt.pv_pa); 882 #endif 883 884 cpu_setttb(kernel_l1pt.pv_pa); 885 cpu_tlb_flushID(); 886 cpu_domains(DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)); 887 888 /* 889 * Moved from cpu_startup() as data_abort_handler() references 890 * this during uvm init 891 */ 892 uvm_lwp_setuarea(&lwp0, kernelstack.pv_va); 893 894 #ifdef VERBOSE_INIT_ARM 895 printf("bootstrap done.\n"); 896 #endif 897 898 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 899 arm32_vector_init(ARM_VECTORS_LOW, ARM_VEC_ALL); 900 #elif defined(CPU_CORTEXA8) 901 arm32_vector_init(ARM_VECTORS_HIGH, ARM_VEC_ALL); 902 #endif 903 904 /* 905 * Pages were allocated during the secondary bootstrap for the 906 * stacks for different CPU modes. 907 * We must now set the r13 registers in the different CPU modes to 908 * point to these stacks. 909 * Since the ARM stacks use STMFD etc. we must set r13 to the top end 910 * of the stack memory. 911 */ 912 #ifdef VERBOSE_INIT_ARM 913 printf("init subsystems: stacks "); 914 #endif 915 916 set_stackptr(PSR_IRQ32_MODE, 917 irqstack.pv_va + IRQ_STACK_SIZE * PAGE_SIZE); 918 set_stackptr(PSR_ABT32_MODE, 919 abtstack.pv_va + ABT_STACK_SIZE * PAGE_SIZE); 920 set_stackptr(PSR_UND32_MODE, 921 undstack.pv_va + UND_STACK_SIZE * PAGE_SIZE); 922 923 /* 924 * Well we should set a data abort handler. 925 * Once things get going this will change as we will need a proper 926 * handler. 927 * Until then we will use a handler that just panics but tells us 928 * why. 929 * Initialisation of the vectors will just panic on a data abort. 930 * This just fills in a slighly better one. 931 */ 932 #ifdef VERBOSE_INIT_ARM 933 printf("vectors "); 934 #endif 935 data_abort_handler_address = (u_int)data_abort_handler; 936 prefetch_abort_handler_address = (u_int)prefetch_abort_handler; 937 undefined_handler_address = (u_int)undefinedinstruction_bounce; 938 939 /* Initialise the undefined instruction handlers */ 940 #ifdef VERBOSE_INIT_ARM 941 printf("undefined "); 942 #endif 943 undefined_init(); 944 945 /* Load memory into UVM. */ 946 #ifdef VERBOSE_INIT_ARM 947 printf("page "); 948 #endif 949 uvm_setpagesize(); /* initialize PAGE_SIZE-dependent variables */ 950 uvm_page_physload(atop(physical_freestart), atop(physical_freeend), 951 atop(physical_freestart), atop(physical_freeend), 952 VM_FREELIST_DEFAULT); 953 954 /* Boot strap pmap telling it where the kernel page table is */ 955 #ifdef VERBOSE_INIT_ARM 956 printf("pmap "); 957 #endif 958 pmap_bootstrap(KERNEL_VM_BASE, KERNEL_VM_BASE + KERNEL_VM_SIZE); 959 960 #ifdef __HAVE_MEMORY_DISK__ 961 md_root_setconf(memory_disk, sizeof memory_disk); 962 #endif 963 964 #ifdef BOOTHOWTO 965 boothowto |= BOOTHOWTO; 966 #endif 967 968 #ifdef KGDB 969 if (boothowto & RB_KDB) { 970 kgdb_debug_init = 1; 971 kgdb_connect(1); 972 } 973 #endif 974 975 #if NKSYMS || defined(DDB) || defined(MODULAR) 976 /* Firmware doesn't load symbols. */ 977 ddb_init(0, NULL, NULL); 978 #endif 979 980 #ifdef DDB 981 db_machine_init(); 982 if (boothowto & RB_KDB) 983 Debugger(); 984 #endif 985 986 /* We return the new stack pointer address */ 987 return(kernelstack.pv_va + USPACE_SVC_STACK_TOP); 988 } 989 990 #if defined(GUMSTIX) 991 static void 992 read_system_serial(void) 993 { 994 #define GUMSTIX_SYSTEM_SERIAL_ADDR 0 995 #define GUMSTIX_SYSTEM_SERIAL_SIZE 8 996 #define FLASH_OFFSET_INTEL_PROTECTION 0x81 997 #define FLASH_OFFSET_USER_PROTECTION 0x85 998 #define FLASH_CMD_READ_ID 0x90 999 #define FLASH_CMD_RESET 0xff 1000 int i; 1001 char system_serial[GUMSTIX_SYSTEM_SERIAL_SIZE], *src; 1002 char x; 1003 1004 src = (char *)(FLASH_OFFSET_USER_PROTECTION * 2 /*word*/); 1005 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1006 memcpy(system_serial, 1007 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1008 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1009 1010 for (i = 1, x = system_serial[0]; i < sizeof (system_serial); i++) 1011 x &= system_serial[i]; 1012 if (x == 0xff) { 1013 src = (char *)(FLASH_OFFSET_INTEL_PROTECTION * 2 /*word*/); 1014 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1015 memcpy(system_serial, 1016 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1017 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1018 1019 /* 1020 * XXXX: Don't need ??? 1021 * gumstix_serial_hash(system_serial); 1022 */ 1023 } 1024 system_serial_high = system_serial[0] << 24 | system_serial[1] << 16 | 1025 system_serial[2] << 8 | system_serial[3]; 1026 system_serial_low = system_serial[4] << 24 | system_serial[5] << 16 | 1027 system_serial[6] << 8 | system_serial[7]; 1028 1029 printf("system serial: 0x"); 1030 for (i = 0; i < sizeof (system_serial); i++) 1031 printf("%02x", system_serial[i]); 1032 printf("\n"); 1033 } 1034 #endif 1035 1036 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1037 static const char busheader_name[] = "busheader="; 1038 #endif 1039 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1040 static const char console_name[] = "console="; 1041 #endif 1042 static void 1043 process_kernel_args(int argc, char *argv[]) 1044 { 1045 int gxio_configured = 0, i, j; 1046 1047 boothowto = 0; 1048 1049 for (i = 1, j = 0; i < argc; i++) { 1050 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1051 if (!strncmp(argv[i], busheader_name, strlen(busheader_name))) { 1052 /* configure for GPIOs of busheader side */ 1053 gxio_config_expansion(argv[i] + strlen(busheader_name)); 1054 gxio_configured = 1; 1055 continue; 1056 } 1057 #endif 1058 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1059 if (!strncmp(argv[i], console_name, strlen(console_name))) { 1060 strncpy(console, argv[i] + strlen(console_name), 1061 sizeof(console)); 1062 consinit(); 1063 } 1064 #endif 1065 if (j == MAX_BOOT_STRING) { 1066 *(bootargs + j) = '\0'; 1067 continue; 1068 } 1069 if (j != 0) 1070 *(bootargs + j++) = ' '; 1071 strncpy(bootargs + j, argv[i], MAX_BOOT_STRING - j); 1072 j += strlen(argv[i]); 1073 } 1074 boot_args = bootargs; 1075 1076 parse_mi_bootargs(boot_args); 1077 1078 if (!gxio_configured) 1079 gxio_config_expansion(NULL); 1080 } 1081 1082 static void 1083 process_kernel_args_liner(char *args) 1084 { 1085 char *p = NULL; 1086 1087 boothowto = 0; 1088 1089 strncpy(bootargs, args, sizeof(bootargs)); 1090 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1091 p = strstr(bootargs, busheader_name); 1092 if (p) { 1093 int i = 0; 1094 char expansion[256], c; 1095 1096 do { 1097 c = *(p + strlen(busheader_name) + i); 1098 if (c == ' ') 1099 c = '\0'; 1100 expansion[i++] = c; 1101 } while (c != '\0' && i < sizeof(expansion)); 1102 gxio_config_expansion(expansion); 1103 strcpy(p, p + i); 1104 } 1105 #endif 1106 if (p == NULL) 1107 gxio_config_expansion(NULL); 1108 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1109 p = strstr(bootargs, console_name); 1110 if (p != NULL) { 1111 int i = 0; 1112 char c; 1113 1114 do { 1115 c = *(p + strlen(console_name) + i); 1116 if (c == ' ') 1117 c = '\0'; 1118 console[i++] = c; 1119 } while (c != '\0' && i < sizeof(console)); 1120 consinit(); 1121 strcpy(p, p + i); 1122 } 1123 #endif 1124 boot_args = bootargs; 1125 1126 parse_mi_bootargs(boot_args); 1127 } 1128 1129 #ifdef KGDB 1130 #ifndef KGDB_DEVNAME 1131 #define KGDB_DEVNAME "ffuart" 1132 #endif 1133 const char kgdb_devname[] = KGDB_DEVNAME; 1134 1135 #ifndef KGDB_DEVRATE 1136 #define KGDB_DEVRATE CONSPEED 1137 #endif 1138 int kgdb_devrate = KGDB_DEVRATE; 1139 1140 #if (NCOM > 0) 1141 #ifndef KGDB_DEVMODE 1142 #define KGDB_DEVMODE CONMODE 1143 #endif 1144 int comkgdbmode = KGDB_DEVMODE; 1145 #endif /* NCOM */ 1146 1147 #endif /* KGDB */ 1148 1149 1150 void 1151 consinit(void) 1152 { 1153 static int consinit_called = 0; 1154 1155 if (consinit_called != 0) 1156 return; 1157 1158 consinit_called = 1; 1159 1160 #if NCOM > 0 1161 1162 #if defined(GUMSTIX) 1163 1164 #ifdef FFUARTCONSOLE 1165 #ifdef KGDB 1166 if (strcmp(kgdb_devname, "ffuart") == 0){ 1167 /* port is reserved for kgdb */ 1168 } else 1169 #endif 1170 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1171 if (console[0] == '\0' || strcasecmp(console, "ffuart") == 0) 1172 #endif 1173 { 1174 int rv; 1175 1176 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_FFUART_BASE, 1177 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1178 if (rv == 0) { 1179 pxa2x0_clkman_config(CKEN_FFUART, 1); 1180 return; 1181 } 1182 } 1183 #endif /* FFUARTCONSOLE */ 1184 1185 #ifdef STUARTCONSOLE 1186 #ifdef KGDB 1187 if (strcmp(kgdb_devname, "stuart") == 0) { 1188 /* port is reserved for kgdb */ 1189 } else 1190 #endif 1191 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1192 if (console[0] == '\0' || strcasecmp(console, "stuart") == 0) 1193 #endif 1194 { 1195 int rv; 1196 1197 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_STUART_BASE, 1198 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1199 if (rv == 0) { 1200 pxa2x0_clkman_config(CKEN_STUART, 1); 1201 return; 1202 } 1203 } 1204 #endif /* STUARTCONSOLE */ 1205 1206 #ifdef BTUARTCONSOLE 1207 #ifdef KGDB 1208 if (strcmp(kgdb_devname, "btuart") == 0) { 1209 /* port is reserved for kgdb */ 1210 } else 1211 #endif 1212 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1213 if (console[0] == '\0' || strcasecmp(console, "btuart") == 0) 1214 #endif 1215 { 1216 int rv; 1217 1218 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_BTUART_BASE, 1219 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1220 if (rv == 0) { 1221 pxa2x0_clkman_config(CKEN_BTUART, 1); 1222 return; 1223 } 1224 } 1225 #endif /* BTUARTCONSOLE */ 1226 1227 #ifdef HWUARTCONSOLE 1228 #ifdef KGDB 1229 if (strcmp(kgdb_devname, "hwuart") == 0) { 1230 /* port is reserved for kgdb */ 1231 } else 1232 #endif 1233 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1234 if (console[0] == '\0' || strcasecmp(console, "hwuart") == 0) 1235 #endif 1236 { 1237 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_HWUART_BASE, 1238 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1239 if (rv == 0) { 1240 pxa2x0_clkman_config(CKEN_HWUART, 1); 1241 return; 1242 } 1243 } 1244 #endif /* HWUARTCONSOLE */ 1245 1246 #elif defined(OVERO) 1247 1248 if (comcnattach(&omap_a4x_bs_tag, 0x49020000, comcnspeed, 1249 OMAP_COM_FREQ, COM_TYPE_NORMAL, comcnmode) == 0) 1250 return; 1251 1252 #endif /* GUMSTIX or OVERO */ 1253 1254 #endif /* NCOM */ 1255 1256 #if NLCD > 0 1257 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1258 if (console[0] == '\0' || strcasecmp(console, "lcd") == 0) 1259 #endif 1260 { 1261 gxlcd_cnattach(); 1262 } 1263 #endif 1264 } 1265 1266 #ifdef KGDB 1267 static void 1268 kgdb_port_init(void) 1269 { 1270 #if (NCOM > 0) && defined(COM_PXA2X0) 1271 paddr_t paddr = 0; 1272 int cken = 0; 1273 1274 if (0 == strcmp(kgdb_devname, "ffuart")) { 1275 paddr = PXA2X0_FFUART_BASE; 1276 cken = CKEN_FFUART; 1277 } else if (0 == strcmp(kgdb_devname, "stuart")) { 1278 paddr = PXA2X0_STUART_BASE; 1279 cken = CKEN_STUART; 1280 } else if (0 == strcmp(kgdb_devname, "btuart")) { 1281 paddr = PXA2X0_BTUART_BASE; 1282 cken = CKEN_BTUART; 1283 } else if (0 == strcmp(kgdb_devname, "hwuart")) { 1284 paddr = PXA2X0_HWUART_BASE; 1285 cken = CKEN_HWUART; 1286 } 1287 1288 if (paddr && 1289 0 == com_kgdb_attach(&pxa2x0_a4x_bs_tag, paddr, 1290 kgdb_devrate, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comkgdbmode)) { 1291 1292 pxa2x0_clkman_config(cken, 1); 1293 } 1294 1295 #endif 1296 } 1297 #endif 1298
Indexes created Fri Oct 03 02:09:57 GMT 2025