gumstix_machdep.c revision 1.30
1 /* $NetBSD: gumstix_machdep.c,v 1.30 2010/08/28 04:46:24 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_omap.h" 143 #include "opt_gumstix.h" 144 #include "opt_ddb.h" 145 #include "opt_kgdb.h" 146 #include "opt_pmap_debug.h" 147 #include "opt_md.h" 148 #include "opt_modular.h" 149 #include "opt_com.h" 150 #include "md.h" 151 152 #include <sys/param.h> 153 #include <sys/conf.h> 154 #include <sys/device.h> 155 #include <sys/exec.h> 156 #include <sys/kernel.h> 157 #include <sys/ksyms.h> 158 #include <sys/msgbuf.h> 159 #include <sys/proc.h> 160 #include <sys/reboot.h> 161 #include <sys/systm.h> 162 #include <sys/termios.h> 163 164 #include <machine/autoconf.h> 165 #include <machine/bootconfig.h> 166 #include <machine/bus.h> 167 #include <machine/cpu.h> 168 #include <machine/db_machdep.h> 169 #include <machine/frame.h> 170 171 #include <arm/arm32/machdep.h> 172 #include <arm/omap/omap2_gpmcreg.h> 173 #include <arm/omap/omap2_reg.h> 174 #include <arm/omap/omap_var.h> 175 #include <arm/omap/omap_com.h> 176 #include <arm/undefined.h> 177 #include <arm/xscale/pxa2x0reg.h> 178 #include <arm/xscale/pxa2x0var.h> 179 #include <arm/xscale/pxa2x0_gpio.h> 180 #include <evbarm/gumstix/gumstixreg.h> 181 #include <evbarm/gumstix/gumstixvar.h> 182 183 #include <uvm/uvm_extern.h> 184 185 #include <dev/cons.h> 186 #include <dev/md.h> 187 188 #include <ddb/db_sym.h> 189 #include <ddb/db_extern.h> 190 #ifdef KGDB 191 #include <sys/kgdb.h> 192 #endif 193 194 /* Kernel text starts 2MB in from the bottom of the kernel address space. */ 195 #define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00200000) 196 #ifndef KERNEL_VM_BASE 197 #define KERNEL_VM_BASE (KERNEL_BASE + 0x01000000) 198 #endif 199 200 /* 201 * The range 0xc1000000 - 0xccffffff is available for kernel VM space 202 * Core-logic registers and I/O mappings occupy 0xfd000000 - 0xffffffff 203 */ 204 #define KERNEL_VM_SIZE 0x0C000000 205 206 207 /* 208 * Address to call from cpu_reset() to reset the machine. 209 * This is machine architecture dependant as it varies depending 210 * on where the ROM appears when you turn the MMU off. 211 */ 212 213 u_int cpu_reset_address = 0; 214 215 /* Define various stack sizes in pages */ 216 #define IRQ_STACK_SIZE 1 217 #define ABT_STACK_SIZE 1 218 #define UND_STACK_SIZE 1 219 220 BootConfig bootconfig; /* Boot config storage */ 221 static char bootargs[MAX_BOOT_STRING]; 222 char *boot_args = NULL; 223 224 uint32_t system_serial_high; 225 uint32_t system_serial_low; 226 227 vm_offset_t physical_start; 228 vm_offset_t physical_freestart; 229 vm_offset_t physical_freeend; 230 vm_offset_t physical_end; 231 u_int free_pages; 232 233 /*int debug_flags;*/ 234 #ifndef PMAP_STATIC_L1S 235 int max_processes = 64; /* Default number */ 236 #endif /* !PMAP_STATIC_L1S */ 237 238 /* Physical and virtual addresses for some global pages */ 239 pv_addr_t irqstack; 240 pv_addr_t undstack; 241 pv_addr_t abtstack; 242 pv_addr_t kernelstack; 243 pv_addr_t minidataclean; 244 245 vm_offset_t msgbufphys; 246 247 extern u_int data_abort_handler_address; 248 extern u_int prefetch_abort_handler_address; 249 extern u_int undefined_handler_address; 250 251 #ifdef PMAP_DEBUG 252 extern int pmap_debug_level; 253 #endif 254 255 #define KERNEL_PT_SYS 0 /* Page table for mapping proc0 zero page */ 256 #define KERNEL_PT_KERNEL 1 /* Page table for mapping kernel */ 257 #define KERNEL_PT_KERNEL_NUM ((KERNEL_VM_BASE - KERNEL_BASE) >> 22) 258 #define KERNEL_PT_VMDATA (KERNEL_PT_KERNEL+KERNEL_PT_KERNEL_NUM) 259 /* Page tables for mapping kernel VM */ 260 #define KERNEL_PT_VMDATA_NUM 4 /* start with 16MB of KVM */ 261 #define NUM_KERNEL_PTS (KERNEL_PT_VMDATA + KERNEL_PT_VMDATA_NUM) 262 263 pv_addr_t kernel_pt_table[NUM_KERNEL_PTS]; 264 265 /* Prototypes */ 266 #if defined(GUMSTIX) 267 static void read_system_serial(void); 268 #endif 269 static void process_kernel_args(int, char *[]); 270 static void process_kernel_args_liner(char *); 271 #ifdef KGDB 272 static void kgdb_port_init(void); 273 #endif 274 static void gumstix_device_register(device_t, void *); 275 276 bs_protos(bs_notimpl); 277 278 #include "com.h" 279 #if NCOM > 0 280 #include <dev/ic/comreg.h> 281 #include <dev/ic/comvar.h> 282 #endif 283 284 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 285 #include "lcd.h" 286 #endif 287 288 #ifndef CONSPEED 289 #define CONSPEED B115200 /* It's a setting of the default of u-boot */ 290 #endif 291 #ifndef CONMODE 292 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 293 #endif 294 295 int comcnspeed = CONSPEED; 296 int comcnmode = CONMODE; 297 298 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 299 static char console[16]; 300 #endif 301 302 extern void gxio_config_pin(void); 303 extern void gxio_config_expansion(char *); 304 305 /* 306 * void cpu_reboot(int howto, char *bootstr) 307 * 308 * Deal with any syncing, unmounting, dumping and shutdown hooks, 309 * then reset the CPU. 310 */ 311 void 312 cpu_reboot(int howto, char *bootstr) 313 { 314 315 #ifdef DIAGNOSTIC 316 /* info */ 317 printf("boot: howto=%08x curproc=%p\n", howto, curproc); 318 #endif 319 320 /* 321 * If we are still cold then hit the air brakes 322 * and crash to earth fast 323 */ 324 if (cold) { 325 doshutdownhooks(); 326 pmf_system_shutdown(boothowto); 327 printf("The operating system has halted.\n"); 328 printf("Please press any key to reboot.\n\n"); 329 cngetc(); 330 printf("rebooting...\n"); 331 cpu_reset(); 332 /*NOTREACHED*/ 333 } 334 335 /* 336 * If RB_NOSYNC was not specified sync the discs. 337 * Note: Unless cold is set to 1 here, syslogd will die during the 338 * unmount. It looks like syslogd is getting woken up only to find 339 * that it cannot page part of the binary in as the filesystem has 340 * been unmounted. 341 */ 342 if (!(howto & RB_NOSYNC)) 343 bootsync(); 344 345 /* Say NO to interrupts */ 346 splhigh(); 347 348 /* Do a dump if requested. */ 349 if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP) 350 dumpsys(); 351 352 /* Run any shutdown hooks */ 353 doshutdownhooks(); 354 355 pmf_system_shutdown(boothowto); 356 357 /* Make sure IRQ's are disabled */ 358 IRQdisable; 359 360 if (howto & RB_HALT) { 361 printf("The operating system has halted.\n"); 362 printf("Please press any key to reboot.\n\n"); 363 cngetc(); 364 } 365 366 printf("rebooting...\n"); 367 cpu_reset(); 368 /*NOTREACHED*/ 369 } 370 371 static inline pd_entry_t * 372 read_ttb(void) 373 { 374 long ttb; 375 376 __asm volatile("mrc p15, 0, %0, c2, c0, 0" : "=r" (ttb)); 377 378 return (pd_entry_t *)(ttb & ~((1<<14)-1)); 379 } 380 381 /* 382 * Static device mappings. These peripheral registers are mapped at 383 * fixed virtual addresses very early in initarm() so that we can use 384 * them while booting the kernel, and stay at the same address 385 * throughout whole kernel's life time. 386 * 387 * We use this table twice; once with bootstrap page table, and once 388 * with kernel's page table which we build up in initarm(). 389 * 390 * Since we map these registers into the bootstrap page table using 391 * pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map 392 * registers segment-aligned and segment-rounded in order to avoid 393 * using the 2nd page tables. 394 */ 395 396 #define _A(a) ((a) & ~L1_S_OFFSET) 397 #define _S(s) (((s) + L1_S_SIZE - 1) & ~(L1_S_SIZE-1)) 398 399 static const struct pmap_devmap gumstix_devmap[] = { 400 #if defined(GUMSTIX) 401 { 402 GUMSTIX_GPIO_VBASE, 403 _A(PXA2X0_GPIO_BASE), 404 _S(PXA250_GPIO_SIZE), 405 VM_PROT_READ | VM_PROT_WRITE, 406 PTE_NOCACHE, 407 }, 408 { 409 GUMSTIX_CLKMAN_VBASE, 410 _A(PXA2X0_CLKMAN_BASE), 411 _S(PXA2X0_CLKMAN_SIZE), 412 VM_PROT_READ | VM_PROT_WRITE, 413 PTE_NOCACHE, 414 }, 415 { 416 GUMSTIX_INTCTL_VBASE, 417 _A(PXA2X0_INTCTL_BASE), 418 _S(PXA2X0_INTCTL_SIZE), 419 VM_PROT_READ | VM_PROT_WRITE, 420 PTE_NOCACHE, 421 }, 422 { 423 GUMSTIX_FFUART_VBASE, 424 _A(PXA2X0_FFUART_BASE), 425 _S(4 * COM_NPORTS), 426 VM_PROT_READ | VM_PROT_WRITE, 427 PTE_NOCACHE, 428 }, 429 { 430 GUMSTIX_STUART_VBASE, 431 _A(PXA2X0_STUART_BASE), 432 _S(4 * COM_NPORTS), 433 VM_PROT_READ | VM_PROT_WRITE, 434 PTE_NOCACHE, 435 }, 436 { 437 GUMSTIX_BTUART_VBASE, 438 _A(PXA2X0_BTUART_BASE), 439 _S(4 * COM_NPORTS), 440 VM_PROT_READ | VM_PROT_WRITE, 441 PTE_NOCACHE, 442 }, 443 { 444 GUMSTIX_HWUART_VBASE, 445 _A(PXA2X0_HWUART_BASE), 446 _S(4 * COM_NPORTS), 447 VM_PROT_READ | VM_PROT_WRITE, 448 PTE_NOCACHE, 449 }, 450 { 451 GUMSTIX_LCDC_VBASE, 452 _A(PXA2X0_LCDC_BASE), 453 _S(4 * COM_NPORTS), 454 VM_PROT_READ | VM_PROT_WRITE, 455 PTE_NOCACHE, 456 }, 457 #elif defined(OVERO) 458 { 459 OVERO_L4_PERIPHERAL_VBASE, 460 _A(OMAP3530_L4_PERIPHERAL_BASE), 461 _S(OMAP3530_L4_PERIPHERAL_SIZE), 462 VM_PROT_READ | VM_PROT_WRITE, 463 PTE_NOCACHE 464 }, 465 { 466 OVERO_GPMC_VBASE, 467 _A(GPMC_BASE), 468 _S(GPMC_SIZE), 469 VM_PROT_READ | VM_PROT_WRITE, 470 PTE_NOCACHE 471 }, 472 #endif 473 { 0, 0, 0, 0, 0 } 474 }; 475 476 #undef _A 477 #undef _S 478 479 480 /* 481 * u_int initarm(...) 482 * 483 * Initial entry point on startup. This gets called before main() is 484 * entered. 485 * It should be responsible for setting up everything that must be 486 * in place when main is called. 487 * This includes 488 * Taking a copy of the boot configuration structure. 489 * Initialising the physical console so characters can be printed. 490 * Setting up page tables for the kernel 491 * Relocating the kernel to the bottom of physical memory 492 */ 493 u_int 494 initarm(void *arg) 495 { 496 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 497 #ifdef DIAGNOSTIC 498 extern vsize_t xscale_minidata_clean_size; /* used in KASSERT */ 499 #endif 500 extern vaddr_t xscale_cache_clean_addr; 501 #endif 502 extern uint32_t *u_boot_args[]; 503 extern uint32_t ram_size; 504 enum { r0 = 0, r1 = 1, r2 = 2, r3 = 3 }; /* args from u-boot */ 505 int loop; 506 int loop1; 507 u_int l1pagetable; 508 paddr_t memstart; 509 psize_t memsize; 510 511 /* 512 * U-Boot doesn't use the virtual memory. 513 * 514 * Gumstix (basix, connex, verdex, verdex-pro): 515 * Physical Address Range Description 516 * ----------------------- ---------------------------------- 517 * 0x00000000 - 0x00ffffff flash Memory (16MB or 4MB) 518 * 0x40000000 - 0x480fffff Processor Registers 519 * 0xa0000000 - 0xa3ffffff SDRAM Bank 0 (64MB or 128MB) 520 * 521 * Overo: 522 * Physical Address Range Description 523 * ----------------------- ---------------------------------- 524 */ 525 526 /* 527 * Heads up ... Setup the CPU / MMU / TLB functions 528 */ 529 if (set_cpufuncs()) 530 panic("cpu not recognized!"); 531 532 /* map some peripheral registers at static I/O area */ 533 pmap_devmap_bootstrap((vaddr_t)read_ttb(), gumstix_devmap); 534 535 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 536 /* start 32.768kHz OSC */ 537 ioreg_write(GUMSTIX_CLKMAN_VBASE + CLKMAN_OSCC, OSCC_OON); 538 539 /* Get ready for splfoo() */ 540 pxa2x0_intr_bootstrap(GUMSTIX_INTCTL_VBASE); 541 542 /* setup GPIO for {FF,ST,HW}UART. */ 543 pxa2x0_gpio_bootstrap(GUMSTIX_GPIO_VBASE); 544 545 pxa2x0_clkman_bootstrap(GUMSTIX_CLKMAN_VBASE); 546 #elif defined(CPU_CORTEXA8) 547 { 548 void cortexa8_pmc_ccnt_init(void); 549 550 cortexa8_pmc_ccnt_init(); 551 } 552 #endif 553 554 cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT); 555 556 /* configure GPIOs. */ 557 gxio_config_pin(); 558 559 560 #ifndef GUMSTIX_NETBSD_ARGS_CONSOLE 561 consinit(); 562 #endif 563 #ifdef KGDB 564 kgdb_port_init(); 565 #endif 566 567 /* 568 * Examine the boot args string for options we need to know about 569 * now. 570 */ 571 #if defined(GUMSTIX) 572 #define SDRAM_START 0xa0000000UL 573 #elif defined(OVERO) 574 #define SDRAM_START 0x80000000UL 575 #endif 576 if (((uint32_t)u_boot_args[r0] & 0xf0000000) != SDRAM_START) 577 /* Maybe r0 is 'argc'. We are booted by command 'go'. */ 578 process_kernel_args((int)u_boot_args[r0], 579 (char **)u_boot_args[r1]); 580 else 581 /* 582 * Maybe r3 is 'boot args string' of 'bootm'. This string is 583 * linely. 584 */ 585 process_kernel_args_liner((char *)u_boot_args[r3]); 586 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 587 consinit(); 588 #endif 589 590 /* Talk to the user */ 591 #define BDSTR(s) _BDSTR(s) 592 #define _BDSTR(s) #s 593 printf("\nNetBSD/evbarm (" BDSTR(EVBARM_BOARDTYPE) ") booting ...\n"); 594 595 /* Read system serial */ 596 #if defined(GUMSTIX) 597 read_system_serial(); 598 #endif 599 600 memstart = SDRAM_START; 601 memsize = ram_size; 602 603 #ifdef VERBOSE_INIT_ARM 604 printf("initarm: Configuring system ...\n"); 605 #endif 606 607 /* Fake bootconfig structure for the benefit of pmap.c */ 608 /* XXX must make the memory description h/w independent */ 609 bootconfig.dramblocks = 1; 610 bootconfig.dram[0].address = memstart; 611 bootconfig.dram[0].pages = memsize / PAGE_SIZE; 612 613 /* 614 * Set up the variables that define the availablilty of 615 * physical memory. For now, we're going to set 616 * physical_freestart to 0xa0200000 (where the kernel 617 * was loaded), and allocate the memory we need downwards. 618 * If we get too close to the L1 table that we set up, we 619 * will panic. We will update physical_freestart and 620 * physical_freeend later to reflect what pmap_bootstrap() 621 * wants to see. 622 * 623 * XXX pmap_bootstrap() needs an enema. 624 */ 625 physical_start = bootconfig.dram[0].address; 626 physical_end = physical_start + memsize; 627 628 #if defined(GUMSTIX) 629 physical_freestart = 0xa0009000UL; 630 physical_freeend = 0xa0200000UL; 631 #elif defined(OVERO) 632 physical_freestart = 0x80009000UL; 633 physical_freeend = 0x80200000UL; 634 #endif 635 636 physmem = (physical_end - physical_start) / PAGE_SIZE; 637 638 #ifdef VERBOSE_INIT_ARM 639 /* Tell the user about the memory */ 640 printf("physmemory: %d pages at 0x%08lx -> 0x%08lx\n", physmem, 641 physical_start, physical_end - 1); 642 #endif 643 644 /* 645 * Okay, the kernel starts 2MB in from the bottom of physical 646 * memory. We are going to allocate our bootstrap pages downwards 647 * from there. 648 * 649 * We need to allocate some fixed page tables to get the kernel 650 * going. We allocate one page directory and a number of page 651 * tables and store the physical addresses in the kernel_pt_table 652 * array. 653 * 654 * The kernel page directory must be on a 16K boundary. The page 655 * tables must be on 4K bounaries. What we do is allocate the 656 * page directory on the first 16K boundary that we encounter, and 657 * the page tables on 4K boundaries otherwise. Since we allocate 658 * at least 3 L2 page tables, we are guaranteed to encounter at 659 * least one 16K aligned region. 660 */ 661 662 #ifdef VERBOSE_INIT_ARM 663 printf("Allocating page tables\n"); 664 #endif 665 666 free_pages = (physical_freeend - physical_freestart) / PAGE_SIZE; 667 668 #ifdef VERBOSE_INIT_ARM 669 printf("freestart = 0x%08lx, free_pages = %d (0x%08x)\n", 670 physical_freestart, free_pages, free_pages); 671 #endif 672 673 /* Define a macro to simplify memory allocation */ 674 #define valloc_pages(var, np) \ 675 alloc_pages((var).pv_pa, (np)); \ 676 (var).pv_va = KERNEL_BASE + (var).pv_pa - physical_start; 677 678 #define alloc_pages(var, np) \ 679 physical_freeend -= ((np) * PAGE_SIZE); \ 680 if (physical_freeend < physical_freestart) \ 681 panic("initarm: out of memory"); \ 682 (var) = physical_freeend; \ 683 free_pages -= (np); \ 684 memset((char *)(var), 0, ((np) * PAGE_SIZE)); 685 686 loop1 = 0; 687 for (loop = 0; loop <= NUM_KERNEL_PTS; ++loop) { 688 /* Are we 16KB aligned for an L1 ? */ 689 if ((physical_freeend & (L1_TABLE_SIZE - 1)) == 0 && 690 kernel_l1pt.pv_pa == 0) { 691 valloc_pages(kernel_l1pt, L1_TABLE_SIZE / PAGE_SIZE); 692 } else { 693 valloc_pages(kernel_pt_table[loop1], 694 L2_TABLE_SIZE / PAGE_SIZE); 695 ++loop1; 696 } 697 } 698 699 /* This should never be able to happen but better confirm that. */ 700 if (!kernel_l1pt.pv_pa || (kernel_l1pt.pv_pa & (L1_TABLE_SIZE-1)) != 0) 701 panic("initarm: Failed to align the kernel page directory"); 702 703 /* 704 * Allocate a page for the system page mapped to V0x00000000 705 * This page will just contain the system vectors and can be 706 * shared by all processes. 707 */ 708 alloc_pages(systempage.pv_pa, 1); 709 #if defined(CPU_CORTEXA8) 710 systempage.pv_va = ARM_VECTORS_HIGH; 711 #endif 712 713 /* Allocate stacks for all modes */ 714 valloc_pages(irqstack, IRQ_STACK_SIZE); 715 valloc_pages(abtstack, ABT_STACK_SIZE); 716 valloc_pages(undstack, UND_STACK_SIZE); 717 valloc_pages(kernelstack, UPAGES); 718 719 /* Allocate enough pages for cleaning the Mini-Data cache. */ 720 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 721 KASSERT(xscale_minidata_clean_size <= PAGE_SIZE); 722 #endif 723 valloc_pages(minidataclean, 1); 724 725 #ifdef VERBOSE_INIT_ARM 726 printf("IRQ stack: p0x%08lx v0x%08lx\n", irqstack.pv_pa, 727 irqstack.pv_va); 728 printf("ABT stack: p0x%08lx v0x%08lx\n", abtstack.pv_pa, 729 abtstack.pv_va); 730 printf("UND stack: p0x%08lx v0x%08lx\n", undstack.pv_pa, 731 undstack.pv_va); 732 printf("SVC stack: p0x%08lx v0x%08lx\n", kernelstack.pv_pa, 733 kernelstack.pv_va); 734 #endif 735 736 /* 737 * XXX Defer this to later so that we can reclaim the memory 738 * XXX used by the RedBoot page tables. 739 */ 740 alloc_pages(msgbufphys, round_page(MSGBUFSIZE) / PAGE_SIZE); 741 742 /* 743 * Ok we have allocated physical pages for the primary kernel 744 * page tables 745 */ 746 747 #ifdef VERBOSE_INIT_ARM 748 printf("Creating L1 page table at 0x%08lx\n", kernel_l1pt.pv_pa); 749 #endif 750 751 /* 752 * Now we start construction of the L1 page table 753 * We start by mapping the L2 page tables into the L1. 754 * This means that we can replace L1 mappings later on if necessary 755 */ 756 l1pagetable = kernel_l1pt.pv_va; 757 758 /* Map the L2 pages tables in the L1 page table */ 759 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 760 pmap_link_l2pt(l1pagetable, 0x00000000, 761 &kernel_pt_table[KERNEL_PT_SYS]); 762 #elif defined(CPU_CORTEXA8) 763 pmap_link_l2pt(l1pagetable, ARM_VECTORS_HIGH & ~(0x00400000 - 1), 764 &kernel_pt_table[KERNEL_PT_SYS]); 765 #endif 766 for (loop = 0; loop < KERNEL_PT_KERNEL_NUM; loop++) 767 pmap_link_l2pt(l1pagetable, KERNEL_BASE + loop * 0x00400000, 768 &kernel_pt_table[KERNEL_PT_KERNEL + loop]); 769 for (loop = 0; loop < KERNEL_PT_VMDATA_NUM; loop++) 770 pmap_link_l2pt(l1pagetable, KERNEL_VM_BASE + loop * 0x00400000, 771 &kernel_pt_table[KERNEL_PT_VMDATA + loop]); 772 773 /* update the top of the kernel VM */ 774 pmap_curmaxkvaddr = 775 KERNEL_VM_BASE + (KERNEL_PT_VMDATA_NUM * 0x00400000); 776 777 #ifdef VERBOSE_INIT_ARM 778 printf("Mapping kernel\n"); 779 #endif 780 781 /* Now we fill in the L2 pagetable for the kernel static code/data */ 782 { 783 extern char etext[], _end[]; 784 size_t textsize = (uintptr_t) etext - KERNEL_TEXT_BASE; 785 size_t totalsize = (uintptr_t) _end - KERNEL_TEXT_BASE; 786 u_int logical; 787 788 textsize = (textsize + PGOFSET) & ~PGOFSET; 789 totalsize = (totalsize + PGOFSET) & ~PGOFSET; 790 791 logical = 0x00200000; /* offset of kernel in RAM */ 792 793 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 794 physical_start + logical, textsize, 795 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 796 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 797 physical_start + logical, totalsize - textsize, 798 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 799 } 800 801 #ifdef VERBOSE_INIT_ARM 802 printf("Constructing L2 page tables\n"); 803 #endif 804 805 /* Map the stack pages */ 806 pmap_map_chunk(l1pagetable, irqstack.pv_va, irqstack.pv_pa, 807 IRQ_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 808 pmap_map_chunk(l1pagetable, abtstack.pv_va, abtstack.pv_pa, 809 ABT_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 810 pmap_map_chunk(l1pagetable, undstack.pv_va, undstack.pv_pa, 811 UND_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 812 pmap_map_chunk(l1pagetable, kernelstack.pv_va, kernelstack.pv_pa, 813 UPAGES * PAGE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_CACHE); 814 815 pmap_map_chunk(l1pagetable, kernel_l1pt.pv_va, kernel_l1pt.pv_pa, 816 L1_TABLE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_PAGETABLE); 817 818 for (loop = 0; loop < NUM_KERNEL_PTS; ++loop) { 819 pmap_map_chunk(l1pagetable, kernel_pt_table[loop].pv_va, 820 kernel_pt_table[loop].pv_pa, L2_TABLE_SIZE, 821 VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE); 822 } 823 824 /* Map the Mini-Data cache clean area. */ 825 #if defined(GUMSTIX) 826 xscale_setup_minidata(l1pagetable, minidataclean.pv_va, 827 minidataclean.pv_pa); 828 #endif 829 830 /* Map the vector page. */ 831 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 832 #if 1 833 /* MULTI-ICE requires that page 0 is NC/NB so that it can download the 834 * cache-clean code there. */ 835 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 836 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE); 837 #else 838 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 839 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 840 #endif 841 #elif defined(CPU_CORTEXA8) 842 pmap_map_entry(l1pagetable, ARM_VECTORS_HIGH, systempage.pv_pa, 843 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 844 #endif 845 846 /* 847 * map integrated peripherals at same address in l1pagetable 848 * so that we can continue to use console. 849 */ 850 pmap_devmap_bootstrap(l1pagetable, gumstix_devmap); 851 852 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 853 /* 854 * Give the XScale global cache clean code an appropriately 855 * sized chunk of unmapped VA space starting at 0xff000000 856 * (our device mappings end before this address). 857 */ 858 xscale_cache_clean_addr = 0xff000000U; 859 #endif 860 861 /* 862 * Now we have the real page tables in place so we can switch to them. 863 * Once this is done we will be running with the REAL kernel page 864 * tables. 865 */ 866 867 /* 868 * Update the physical_freestart/physical_freeend/free_pages 869 * variables. 870 */ 871 { 872 extern char _end[]; 873 874 physical_freestart = physical_start + 875 (((((uintptr_t) _end) + PGOFSET) & ~PGOFSET) - 876 KERNEL_BASE); 877 physical_freeend = physical_end; 878 free_pages = 879 (physical_freeend - physical_freestart) / PAGE_SIZE; 880 } 881 882 /* Switch tables */ 883 #ifdef VERBOSE_INIT_ARM 884 printf("freestart = 0x%08lx, free_pages = %d (0x%x)\n", 885 physical_freestart, free_pages, free_pages); 886 printf("switching to new L1 page table @%#lx...", kernel_l1pt.pv_pa); 887 #endif 888 889 cpu_setttb(kernel_l1pt.pv_pa); 890 cpu_tlb_flushID(); 891 cpu_domains(DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)); 892 893 /* 894 * Moved from cpu_startup() as data_abort_handler() references 895 * this during uvm init 896 */ 897 uvm_lwp_setuarea(&lwp0, kernelstack.pv_va); 898 899 #ifdef VERBOSE_INIT_ARM 900 printf("bootstrap done.\n"); 901 #endif 902 903 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 904 arm32_vector_init(ARM_VECTORS_LOW, ARM_VEC_ALL); 905 #elif defined(CPU_CORTEXA8) 906 arm32_vector_init(ARM_VECTORS_HIGH, ARM_VEC_ALL); 907 #endif 908 909 /* 910 * Pages were allocated during the secondary bootstrap for the 911 * stacks for different CPU modes. 912 * We must now set the r13 registers in the different CPU modes to 913 * point to these stacks. 914 * Since the ARM stacks use STMFD etc. we must set r13 to the top end 915 * of the stack memory. 916 */ 917 #ifdef VERBOSE_INIT_ARM 918 printf("init subsystems: stacks "); 919 #endif 920 921 set_stackptr(PSR_IRQ32_MODE, 922 irqstack.pv_va + IRQ_STACK_SIZE * PAGE_SIZE); 923 set_stackptr(PSR_ABT32_MODE, 924 abtstack.pv_va + ABT_STACK_SIZE * PAGE_SIZE); 925 set_stackptr(PSR_UND32_MODE, 926 undstack.pv_va + UND_STACK_SIZE * PAGE_SIZE); 927 928 /* 929 * Well we should set a data abort handler. 930 * Once things get going this will change as we will need a proper 931 * handler. 932 * Until then we will use a handler that just panics but tells us 933 * why. 934 * Initialisation of the vectors will just panic on a data abort. 935 * This just fills in a slighly better one. 936 */ 937 #ifdef VERBOSE_INIT_ARM 938 printf("vectors "); 939 #endif 940 data_abort_handler_address = (u_int)data_abort_handler; 941 prefetch_abort_handler_address = (u_int)prefetch_abort_handler; 942 undefined_handler_address = (u_int)undefinedinstruction_bounce; 943 944 /* Initialise the undefined instruction handlers */ 945 #ifdef VERBOSE_INIT_ARM 946 printf("undefined "); 947 #endif 948 undefined_init(); 949 950 /* Load memory into UVM. */ 951 #ifdef VERBOSE_INIT_ARM 952 printf("page "); 953 #endif 954 uvm_setpagesize(); /* initialize PAGE_SIZE-dependent variables */ 955 uvm_page_physload(atop(physical_freestart), atop(physical_freeend), 956 atop(physical_freestart), atop(physical_freeend), 957 VM_FREELIST_DEFAULT); 958 959 /* Boot strap pmap telling it where the kernel page table is */ 960 #ifdef VERBOSE_INIT_ARM 961 printf("pmap "); 962 #endif 963 pmap_bootstrap(KERNEL_VM_BASE, KERNEL_VM_BASE + KERNEL_VM_SIZE); 964 965 #ifdef __HAVE_MEMORY_DISK__ 966 md_root_setconf(memory_disk, sizeof memory_disk); 967 #endif 968 969 #ifdef BOOTHOWTO 970 boothowto |= BOOTHOWTO; 971 #endif 972 973 #ifdef KGDB 974 if (boothowto & RB_KDB) { 975 kgdb_debug_init = 1; 976 kgdb_connect(1); 977 } 978 #endif 979 980 #if NKSYMS || defined(DDB) || defined(MODULAR) 981 /* Firmware doesn't load symbols. */ 982 ddb_init(0, NULL, NULL); 983 #endif 984 985 #ifdef DDB 986 db_machine_init(); 987 if (boothowto & RB_KDB) 988 Debugger(); 989 #endif 990 991 /* We have our own device_register() */ 992 evbarm_device_register = gumstix_device_register; 993 994 /* We return the new stack pointer address */ 995 return(kernelstack.pv_va + USPACE_SVC_STACK_TOP); 996 } 997 998 #if defined(GUMSTIX) 999 static void 1000 read_system_serial(void) 1001 { 1002 #define GUMSTIX_SYSTEM_SERIAL_ADDR 0 1003 #define GUMSTIX_SYSTEM_SERIAL_SIZE 8 1004 #define FLASH_OFFSET_INTEL_PROTECTION 0x81 1005 #define FLASH_OFFSET_USER_PROTECTION 0x85 1006 #define FLASH_CMD_READ_ID 0x90 1007 #define FLASH_CMD_RESET 0xff 1008 int i; 1009 char system_serial[GUMSTIX_SYSTEM_SERIAL_SIZE], *src; 1010 char x; 1011 1012 src = (char *)(FLASH_OFFSET_USER_PROTECTION * 2 /*word*/); 1013 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1014 memcpy(system_serial, 1015 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1016 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1017 1018 for (i = 1, x = system_serial[0]; i < sizeof (system_serial); i++) 1019 x &= system_serial[i]; 1020 if (x == 0xff) { 1021 src = (char *)(FLASH_OFFSET_INTEL_PROTECTION * 2 /*word*/); 1022 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1023 memcpy(system_serial, 1024 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1025 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1026 1027 /* 1028 * XXXX: Don't need ??? 1029 * gumstix_serial_hash(system_serial); 1030 */ 1031 } 1032 system_serial_high = system_serial[0] << 24 | system_serial[1] << 16 | 1033 system_serial[2] << 8 | system_serial[3]; 1034 system_serial_low = system_serial[4] << 24 | system_serial[5] << 16 | 1035 system_serial[6] << 8 | system_serial[7]; 1036 1037 printf("system serial: 0x"); 1038 for (i = 0; i < sizeof (system_serial); i++) 1039 printf("%02x", system_serial[i]); 1040 printf("\n"); 1041 } 1042 #endif 1043 1044 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1045 static const char busheader_name[] = "busheader="; 1046 #endif 1047 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1048 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1049 static const char expansion_name[] = "expansion="; 1050 #endif 1051 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1052 static const char console_name[] = "console="; 1053 #endif 1054 static void 1055 process_kernel_args(int argc, char *argv[]) 1056 { 1057 int gxio_configured = 0, i, j; 1058 1059 boothowto = 0; 1060 1061 for (i = 1, j = 0; i < argc; i++) { 1062 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1063 if (!strncmp(argv[i], busheader_name, strlen(busheader_name))) { 1064 /* Configure for GPIOs of busheader side */ 1065 gxio_config_expansion(argv[i] + strlen(busheader_name)); 1066 gxio_configured = 1; 1067 continue; 1068 } 1069 #endif 1070 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1071 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1072 if (!strncmp(argv[i], expansion_name, strlen(expansion_name))) { 1073 /* Configure expansion */ 1074 gxio_config_expansion(argv[i] + strlen(expansion_name)); 1075 gxio_configured = 1; 1076 continue; 1077 } 1078 #endif 1079 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1080 if (!strncmp(argv[i], console_name, strlen(console_name))) { 1081 strncpy(console, argv[i] + strlen(console_name), 1082 sizeof(console)); 1083 consinit(); 1084 } 1085 #endif 1086 if (j == MAX_BOOT_STRING) { 1087 *(bootargs + j) = '\0'; 1088 continue; 1089 } 1090 if (j != 0) 1091 *(bootargs + j++) = ' '; 1092 strncpy(bootargs + j, argv[i], MAX_BOOT_STRING - j); 1093 j += strlen(argv[i]); 1094 } 1095 boot_args = bootargs; 1096 1097 parse_mi_bootargs(boot_args); 1098 1099 if (!gxio_configured) 1100 gxio_config_expansion(NULL); 1101 } 1102 1103 static void 1104 process_kernel_args_liner(char *args) 1105 { 1106 int i = 0; 1107 char *p = NULL; 1108 1109 boothowto = 0; 1110 1111 strncpy(bootargs, args, sizeof(bootargs)); 1112 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1113 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1114 { 1115 char *q; 1116 1117 if ((p = strstr(bootargs, expansion_name))) 1118 q = p + strlen(expansion_name); 1119 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1120 else if (p = strstr(bootargs, busheader_name)) 1121 q = p + strlen(busheader_name); 1122 #endif 1123 if (p) { 1124 char expansion[256], c; 1125 1126 i = 0; 1127 do { 1128 c = *(q + i); 1129 if (c == ' ') 1130 c = '\0'; 1131 expansion[i++] = c; 1132 } while (c != '\0' && i < sizeof(expansion)); 1133 gxio_config_expansion(expansion); 1134 strcpy(p, q + i); 1135 } 1136 } 1137 #endif 1138 if (p == NULL) 1139 gxio_config_expansion(NULL); 1140 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1141 p = strstr(bootargs, console_name); 1142 if (p != NULL) { 1143 char c; 1144 1145 i = 0; 1146 do { 1147 c = *(p + strlen(console_name) + i); 1148 if (c == ' ') 1149 c = '\0'; 1150 console[i++] = c; 1151 } while (c != '\0' && i < sizeof(console)); 1152 consinit(); 1153 strcpy(p, p + strlen(console_name) + i); 1154 } 1155 #endif 1156 boot_args = bootargs; 1157 1158 parse_mi_bootargs(boot_args); 1159 } 1160 1161 #ifdef KGDB 1162 #ifndef KGDB_DEVNAME 1163 #define KGDB_DEVNAME "ffuart" 1164 #endif 1165 const char kgdb_devname[] = KGDB_DEVNAME; 1166 1167 #ifndef KGDB_DEVRATE 1168 #define KGDB_DEVRATE CONSPEED 1169 #endif 1170 int kgdb_devrate = KGDB_DEVRATE; 1171 1172 #if (NCOM > 0) 1173 #ifndef KGDB_DEVMODE 1174 #define KGDB_DEVMODE CONMODE 1175 #endif 1176 int comkgdbmode = KGDB_DEVMODE; 1177 #endif /* NCOM */ 1178 1179 #endif /* KGDB */ 1180 1181 1182 void 1183 consinit(void) 1184 { 1185 static int consinit_called = 0; 1186 1187 if (consinit_called != 0) 1188 return; 1189 1190 consinit_called = 1; 1191 1192 #if NCOM > 0 1193 1194 #if defined(GUMSTIX) 1195 1196 #ifdef FFUARTCONSOLE 1197 #ifdef KGDB 1198 if (strcmp(kgdb_devname, "ffuart") == 0){ 1199 /* port is reserved for kgdb */ 1200 } else 1201 #endif 1202 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1203 if (console[0] == '\0' || strcasecmp(console, "ffuart") == 0) 1204 #endif 1205 { 1206 int rv; 1207 1208 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_FFUART_BASE, 1209 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1210 if (rv == 0) { 1211 pxa2x0_clkman_config(CKEN_FFUART, 1); 1212 return; 1213 } 1214 } 1215 #endif /* FFUARTCONSOLE */ 1216 1217 #ifdef STUARTCONSOLE 1218 #ifdef KGDB 1219 if (strcmp(kgdb_devname, "stuart") == 0) { 1220 /* port is reserved for kgdb */ 1221 } else 1222 #endif 1223 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1224 if (console[0] == '\0' || strcasecmp(console, "stuart") == 0) 1225 #endif 1226 { 1227 int rv; 1228 1229 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_STUART_BASE, 1230 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1231 if (rv == 0) { 1232 pxa2x0_clkman_config(CKEN_STUART, 1); 1233 return; 1234 } 1235 } 1236 #endif /* STUARTCONSOLE */ 1237 1238 #ifdef BTUARTCONSOLE 1239 #ifdef KGDB 1240 if (strcmp(kgdb_devname, "btuart") == 0) { 1241 /* port is reserved for kgdb */ 1242 } else 1243 #endif 1244 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1245 if (console[0] == '\0' || strcasecmp(console, "btuart") == 0) 1246 #endif 1247 { 1248 int rv; 1249 1250 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_BTUART_BASE, 1251 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1252 if (rv == 0) { 1253 pxa2x0_clkman_config(CKEN_BTUART, 1); 1254 return; 1255 } 1256 } 1257 #endif /* BTUARTCONSOLE */ 1258 1259 #ifdef HWUARTCONSOLE 1260 #ifdef KGDB 1261 if (strcmp(kgdb_devname, "hwuart") == 0) { 1262 /* port is reserved for kgdb */ 1263 } else 1264 #endif 1265 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1266 if (console[0] == '\0' || strcasecmp(console, "hwuart") == 0) 1267 #endif 1268 { 1269 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_HWUART_BASE, 1270 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1271 if (rv == 0) { 1272 pxa2x0_clkman_config(CKEN_HWUART, 1); 1273 return; 1274 } 1275 } 1276 #endif /* HWUARTCONSOLE */ 1277 1278 #elif defined(OVERO) 1279 1280 if (comcnattach(&omap_a4x_bs_tag, 0x49020000, comcnspeed, 1281 OMAP_COM_FREQ, COM_TYPE_NORMAL, comcnmode) == 0) 1282 return; 1283 1284 #endif /* GUMSTIX or OVERO */ 1285 1286 #endif /* NCOM */ 1287 1288 #if NLCD > 0 1289 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1290 if (console[0] == '\0' || strcasecmp(console, "lcd") == 0) 1291 #endif 1292 { 1293 gxlcd_cnattach(); 1294 } 1295 #endif 1296 } 1297 1298 #ifdef KGDB 1299 static void 1300 kgdb_port_init(void) 1301 { 1302 #if (NCOM > 0) && defined(COM_PXA2X0) 1303 paddr_t paddr = 0; 1304 int cken = 0; 1305 1306 if (0 == strcmp(kgdb_devname, "ffuart")) { 1307 paddr = PXA2X0_FFUART_BASE; 1308 cken = CKEN_FFUART; 1309 } else if (0 == strcmp(kgdb_devname, "stuart")) { 1310 paddr = PXA2X0_STUART_BASE; 1311 cken = CKEN_STUART; 1312 } else if (0 == strcmp(kgdb_devname, "btuart")) { 1313 paddr = PXA2X0_BTUART_BASE; 1314 cken = CKEN_BTUART; 1315 } else if (0 == strcmp(kgdb_devname, "hwuart")) { 1316 paddr = PXA2X0_HWUART_BASE; 1317 cken = CKEN_HWUART; 1318 } 1319 1320 if (paddr && 1321 0 == com_kgdb_attach(&pxa2x0_a4x_bs_tag, paddr, 1322 kgdb_devrate, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comkgdbmode)) { 1323 1324 pxa2x0_clkman_config(cken, 1); 1325 } 1326 1327 #endif 1328 } 1329 #endif 1330 1331 static void 1332 gumstix_device_register(device_t dev, void *aux) 1333 { 1334 1335 if (device_is_a(dev, "ohci")) { 1336 if (prop_dictionary_set_bool(device_properties(dev), 1337 "Ganged-power-mask-on-port1", 1) == false) { 1338 printf("WARNING: unable to set power-mask for port1" 1339 " property for %s\n", dev->dv_xname); 1340 } 1341 if (prop_dictionary_set_bool(device_properties(dev), 1342 "Ganged-power-mask-on-port2", 1) == false) { 1343 printf("WARNING: unable to set power-mask for port2" 1344 " property for %s\n", dev->dv_xname); 1345 } 1346 if (prop_dictionary_set_bool(device_properties(dev), 1347 "Ganged-power-mask-on-port3", 1) == false) { 1348 printf("WARNING: unable to set power-mask for port3" 1349 " property for %s\n", dev->dv_xname); 1350 } 1351 } 1352 } 1353
Indexes created Tue Oct 07 21:09:53 GMT 2025