gumstix_machdep.c revision 1.31
1 /* $NetBSD: gumstix_machdep.c,v 1.31 2010/08/28 07:13:47 kiyohara Exp $ */ 2 /* 3 * Copyright (C) 2005, 2006, 2007 WIDE Project and SOUM Corporation. 4 * All rights reserved. 5 * 6 * Written by Takashi Kiyohara and Susumu Miki for WIDE Project and SOUM 7 * Corporation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the project nor the name of SOUM Corporation 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT and SOUM CORPORATION ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT AND SOUM CORPORATION 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 /* 34 * Copyright (c) 2002, 2003, 2004, 2005 Genetec Corporation. 35 * All rights reserved. 36 * 37 * Written by Hiroyuki Bessho for Genetec Corporation. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. The name of Genetec Corporation may not be used to endorse or 48 * promote products derived from this software without specific prior 49 * written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND 52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 53 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 54 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORPORATION 55 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 56 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 57 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 58 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 59 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 60 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 61 * POSSIBILITY OF SUCH DAMAGE. 62 * 63 * Machine dependant functions for kernel setup for Genetec G4250EBX 64 * evaluation board. 65 * 66 * Based on iq80310_machhdep.c 67 */ 68 /* 69 * Copyright (c) 2001 Wasabi Systems, Inc. 70 * All rights reserved. 71 * 72 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 73 * 74 * Redistribution and use in source and binary forms, with or without 75 * modification, are permitted provided that the following conditions 76 * are met: 77 * 1. Redistributions of source code must retain the above copyright 78 * notice, this list of conditions and the following disclaimer. 79 * 2. Redistributions in binary form must reproduce the above copyright 80 * notice, this list of conditions and the following disclaimer in the 81 * documentation and/or other materials provided with the distribution. 82 * 3. All advertising materials mentioning features or use of this software 83 * must display the following acknowledgement: 84 * This product includes software developed for the NetBSD Project by 85 * Wasabi Systems, Inc. 86 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 87 * or promote products derived from this software without specific prior 88 * written permission. 89 * 90 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 91 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 92 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 93 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 94 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 95 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 96 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 97 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 98 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 99 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 100 * POSSIBILITY OF SUCH DAMAGE. 101 */ 102 103 /* 104 * Copyright (c) 1997,1998 Mark Brinicombe. 105 * Copyright (c) 1997,1998 Causality Limited. 106 * All rights reserved. 107 * 108 * Redistribution and use in source and binary forms, with or without 109 * modification, are permitted provided that the following conditions 110 * are met: 111 * 1. Redistributions of source code must retain the above copyright 112 * notice, this list of conditions and the following disclaimer. 113 * 2. Redistributions in binary form must reproduce the above copyright 114 * notice, this list of conditions and the following disclaimer in the 115 * documentation and/or other materials provided with the distribution. 116 * 3. All advertising materials mentioning features or use of this software 117 * must display the following acknowledgement: 118 * This product includes software developed by Mark Brinicombe 119 * for the NetBSD Project. 120 * 4. The name of the company nor the name of the author may be used to 121 * endorse or promote products derived from this software without specific 122 * prior written permission. 123 * 124 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 125 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 126 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 127 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 128 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 129 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 130 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 131 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 132 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 133 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 134 * SUCH DAMAGE. 135 * 136 * Machine dependant functions for kernel setup for Intel IQ80310 evaluation 137 * boards using RedBoot firmware. 138 */ 139 140 #include "opt_evbarm_boardtype.h" 141 #include "opt_cputypes.h" 142 #include "opt_gumstix.h" 143 #ifdef OVERO 144 #include "opt_omap.h" 145 #endif 146 #include "opt_ddb.h" 147 #include "opt_kgdb.h" 148 #include "opt_pmap_debug.h" 149 #include "opt_md.h" 150 #include "opt_modular.h" 151 #include "opt_com.h" 152 #include "md.h" 153 154 #include <sys/param.h> 155 #include <sys/conf.h> 156 #include <sys/device.h> 157 #include <sys/exec.h> 158 #include <sys/kernel.h> 159 #include <sys/ksyms.h> 160 #include <sys/msgbuf.h> 161 #include <sys/proc.h> 162 #include <sys/reboot.h> 163 #include <sys/systm.h> 164 #include <sys/termios.h> 165 166 #include <machine/autoconf.h> 167 #include <machine/bootconfig.h> 168 #include <machine/bus.h> 169 #include <machine/cpu.h> 170 #include <machine/db_machdep.h> 171 #include <machine/frame.h> 172 173 #include <arm/arm32/machdep.h> 174 #include <arm/omap/omap2_gpmcreg.h> 175 #include <arm/omap/omap2_reg.h> 176 #include <arm/omap/omap_var.h> 177 #include <arm/omap/omap_com.h> 178 #include <arm/undefined.h> 179 #include <arm/xscale/pxa2x0reg.h> 180 #include <arm/xscale/pxa2x0var.h> 181 #include <arm/xscale/pxa2x0_gpio.h> 182 #include <evbarm/gumstix/gumstixreg.h> 183 #include <evbarm/gumstix/gumstixvar.h> 184 185 #include <uvm/uvm_extern.h> 186 187 #include <dev/cons.h> 188 #include <dev/md.h> 189 190 #include <ddb/db_sym.h> 191 #include <ddb/db_extern.h> 192 #ifdef KGDB 193 #include <sys/kgdb.h> 194 #endif 195 196 /* Kernel text starts 2MB in from the bottom of the kernel address space. */ 197 #define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00200000) 198 #ifndef KERNEL_VM_BASE 199 #define KERNEL_VM_BASE (KERNEL_BASE + 0x01000000) 200 #endif 201 202 /* 203 * The range 0xc1000000 - 0xccffffff is available for kernel VM space 204 * Core-logic registers and I/O mappings occupy 0xfd000000 - 0xffffffff 205 */ 206 #define KERNEL_VM_SIZE 0x0C000000 207 208 209 /* 210 * Address to call from cpu_reset() to reset the machine. 211 * This is machine architecture dependant as it varies depending 212 * on where the ROM appears when you turn the MMU off. 213 */ 214 215 u_int cpu_reset_address = 0; 216 217 /* Define various stack sizes in pages */ 218 #define IRQ_STACK_SIZE 1 219 #define ABT_STACK_SIZE 1 220 #define UND_STACK_SIZE 1 221 222 BootConfig bootconfig; /* Boot config storage */ 223 static char bootargs[MAX_BOOT_STRING]; 224 char *boot_args = NULL; 225 226 uint32_t system_serial_high; 227 uint32_t system_serial_low; 228 229 vm_offset_t physical_start; 230 vm_offset_t physical_freestart; 231 vm_offset_t physical_freeend; 232 vm_offset_t physical_end; 233 u_int free_pages; 234 235 /*int debug_flags;*/ 236 #ifndef PMAP_STATIC_L1S 237 int max_processes = 64; /* Default number */ 238 #endif /* !PMAP_STATIC_L1S */ 239 240 /* Physical and virtual addresses for some global pages */ 241 pv_addr_t irqstack; 242 pv_addr_t undstack; 243 pv_addr_t abtstack; 244 pv_addr_t kernelstack; 245 pv_addr_t minidataclean; 246 247 vm_offset_t msgbufphys; 248 249 extern u_int data_abort_handler_address; 250 extern u_int prefetch_abort_handler_address; 251 extern u_int undefined_handler_address; 252 253 #ifdef PMAP_DEBUG 254 extern int pmap_debug_level; 255 #endif 256 257 #define KERNEL_PT_SYS 0 /* Page table for mapping proc0 zero page */ 258 #define KERNEL_PT_KERNEL 1 /* Page table for mapping kernel */ 259 #define KERNEL_PT_KERNEL_NUM ((KERNEL_VM_BASE - KERNEL_BASE) >> 22) 260 #define KERNEL_PT_VMDATA (KERNEL_PT_KERNEL+KERNEL_PT_KERNEL_NUM) 261 /* Page tables for mapping kernel VM */ 262 #define KERNEL_PT_VMDATA_NUM 4 /* start with 16MB of KVM */ 263 #define NUM_KERNEL_PTS (KERNEL_PT_VMDATA + KERNEL_PT_VMDATA_NUM) 264 265 pv_addr_t kernel_pt_table[NUM_KERNEL_PTS]; 266 267 /* Prototypes */ 268 #if defined(GUMSTIX) 269 static void read_system_serial(void); 270 #endif 271 static void process_kernel_args(int, char *[]); 272 static void process_kernel_args_liner(char *); 273 #ifdef KGDB 274 static void kgdb_port_init(void); 275 #endif 276 static void gumstix_device_register(device_t, void *); 277 278 bs_protos(bs_notimpl); 279 280 #include "com.h" 281 #if NCOM > 0 282 #include <dev/ic/comreg.h> 283 #include <dev/ic/comvar.h> 284 #endif 285 286 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 287 #include "lcd.h" 288 #endif 289 290 #ifndef CONSPEED 291 #define CONSPEED B115200 /* It's a setting of the default of u-boot */ 292 #endif 293 #ifndef CONMODE 294 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 295 #endif 296 297 int comcnspeed = CONSPEED; 298 int comcnmode = CONMODE; 299 300 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 301 static char console[16]; 302 #endif 303 304 extern void gxio_config_pin(void); 305 extern void gxio_config_expansion(char *); 306 307 /* 308 * void cpu_reboot(int howto, char *bootstr) 309 * 310 * Deal with any syncing, unmounting, dumping and shutdown hooks, 311 * then reset the CPU. 312 */ 313 void 314 cpu_reboot(int howto, char *bootstr) 315 { 316 317 #ifdef DIAGNOSTIC 318 /* info */ 319 printf("boot: howto=%08x curproc=%p\n", howto, curproc); 320 #endif 321 322 /* 323 * If we are still cold then hit the air brakes 324 * and crash to earth fast 325 */ 326 if (cold) { 327 doshutdownhooks(); 328 pmf_system_shutdown(boothowto); 329 printf("The operating system has halted.\n"); 330 printf("Please press any key to reboot.\n\n"); 331 cngetc(); 332 printf("rebooting...\n"); 333 cpu_reset(); 334 /*NOTREACHED*/ 335 } 336 337 /* 338 * If RB_NOSYNC was not specified sync the discs. 339 * Note: Unless cold is set to 1 here, syslogd will die during the 340 * unmount. It looks like syslogd is getting woken up only to find 341 * that it cannot page part of the binary in as the filesystem has 342 * been unmounted. 343 */ 344 if (!(howto & RB_NOSYNC)) 345 bootsync(); 346 347 /* Say NO to interrupts */ 348 splhigh(); 349 350 /* Do a dump if requested. */ 351 if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP) 352 dumpsys(); 353 354 /* Run any shutdown hooks */ 355 doshutdownhooks(); 356 357 pmf_system_shutdown(boothowto); 358 359 /* Make sure IRQ's are disabled */ 360 IRQdisable; 361 362 if (howto & RB_HALT) { 363 printf("The operating system has halted.\n"); 364 printf("Please press any key to reboot.\n\n"); 365 cngetc(); 366 } 367 368 printf("rebooting...\n"); 369 cpu_reset(); 370 /*NOTREACHED*/ 371 } 372 373 static inline pd_entry_t * 374 read_ttb(void) 375 { 376 long ttb; 377 378 __asm volatile("mrc p15, 0, %0, c2, c0, 0" : "=r" (ttb)); 379 380 return (pd_entry_t *)(ttb & ~((1<<14)-1)); 381 } 382 383 /* 384 * Static device mappings. These peripheral registers are mapped at 385 * fixed virtual addresses very early in initarm() so that we can use 386 * them while booting the kernel, and stay at the same address 387 * throughout whole kernel's life time. 388 * 389 * We use this table twice; once with bootstrap page table, and once 390 * with kernel's page table which we build up in initarm(). 391 * 392 * Since we map these registers into the bootstrap page table using 393 * pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map 394 * registers segment-aligned and segment-rounded in order to avoid 395 * using the 2nd page tables. 396 */ 397 398 #define _A(a) ((a) & ~L1_S_OFFSET) 399 #define _S(s) (((s) + L1_S_SIZE - 1) & ~(L1_S_SIZE-1)) 400 401 static const struct pmap_devmap gumstix_devmap[] = { 402 #if defined(GUMSTIX) 403 { 404 GUMSTIX_GPIO_VBASE, 405 _A(PXA2X0_GPIO_BASE), 406 _S(PXA250_GPIO_SIZE), 407 VM_PROT_READ | VM_PROT_WRITE, 408 PTE_NOCACHE, 409 }, 410 { 411 GUMSTIX_CLKMAN_VBASE, 412 _A(PXA2X0_CLKMAN_BASE), 413 _S(PXA2X0_CLKMAN_SIZE), 414 VM_PROT_READ | VM_PROT_WRITE, 415 PTE_NOCACHE, 416 }, 417 { 418 GUMSTIX_INTCTL_VBASE, 419 _A(PXA2X0_INTCTL_BASE), 420 _S(PXA2X0_INTCTL_SIZE), 421 VM_PROT_READ | VM_PROT_WRITE, 422 PTE_NOCACHE, 423 }, 424 { 425 GUMSTIX_FFUART_VBASE, 426 _A(PXA2X0_FFUART_BASE), 427 _S(4 * COM_NPORTS), 428 VM_PROT_READ | VM_PROT_WRITE, 429 PTE_NOCACHE, 430 }, 431 { 432 GUMSTIX_STUART_VBASE, 433 _A(PXA2X0_STUART_BASE), 434 _S(4 * COM_NPORTS), 435 VM_PROT_READ | VM_PROT_WRITE, 436 PTE_NOCACHE, 437 }, 438 { 439 GUMSTIX_BTUART_VBASE, 440 _A(PXA2X0_BTUART_BASE), 441 _S(4 * COM_NPORTS), 442 VM_PROT_READ | VM_PROT_WRITE, 443 PTE_NOCACHE, 444 }, 445 { 446 GUMSTIX_HWUART_VBASE, 447 _A(PXA2X0_HWUART_BASE), 448 _S(4 * COM_NPORTS), 449 VM_PROT_READ | VM_PROT_WRITE, 450 PTE_NOCACHE, 451 }, 452 { 453 GUMSTIX_LCDC_VBASE, 454 _A(PXA2X0_LCDC_BASE), 455 _S(4 * COM_NPORTS), 456 VM_PROT_READ | VM_PROT_WRITE, 457 PTE_NOCACHE, 458 }, 459 #elif defined(OVERO) 460 { 461 OVERO_L4_PERIPHERAL_VBASE, 462 _A(OMAP3530_L4_PERIPHERAL_BASE), 463 _S(OMAP3530_L4_PERIPHERAL_SIZE), 464 VM_PROT_READ | VM_PROT_WRITE, 465 PTE_NOCACHE 466 }, 467 { 468 OVERO_GPMC_VBASE, 469 _A(GPMC_BASE), 470 _S(GPMC_SIZE), 471 VM_PROT_READ | VM_PROT_WRITE, 472 PTE_NOCACHE 473 }, 474 #endif 475 { 0, 0, 0, 0, 0 } 476 }; 477 478 #undef _A 479 #undef _S 480 481 482 /* 483 * u_int initarm(...) 484 * 485 * Initial entry point on startup. This gets called before main() is 486 * entered. 487 * It should be responsible for setting up everything that must be 488 * in place when main is called. 489 * This includes 490 * Taking a copy of the boot configuration structure. 491 * Initialising the physical console so characters can be printed. 492 * Setting up page tables for the kernel 493 * Relocating the kernel to the bottom of physical memory 494 */ 495 u_int 496 initarm(void *arg) 497 { 498 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 499 #ifdef DIAGNOSTIC 500 extern vsize_t xscale_minidata_clean_size; /* used in KASSERT */ 501 #endif 502 extern vaddr_t xscale_cache_clean_addr; 503 #endif 504 extern uint32_t *u_boot_args[]; 505 extern uint32_t ram_size; 506 enum { r0 = 0, r1 = 1, r2 = 2, r3 = 3 }; /* args from u-boot */ 507 int loop; 508 int loop1; 509 u_int l1pagetable; 510 paddr_t memstart; 511 psize_t memsize; 512 513 /* 514 * U-Boot doesn't use the virtual memory. 515 * 516 * Gumstix (basix, connex, verdex, verdex-pro): 517 * Physical Address Range Description 518 * ----------------------- ---------------------------------- 519 * 0x00000000 - 0x00ffffff flash Memory (16MB or 4MB) 520 * 0x40000000 - 0x480fffff Processor Registers 521 * 0xa0000000 - 0xa3ffffff SDRAM Bank 0 (64MB or 128MB) 522 * 523 * Overo: 524 * Physical Address Range Description 525 * ----------------------- ---------------------------------- 526 */ 527 528 /* 529 * Heads up ... Setup the CPU / MMU / TLB functions 530 */ 531 if (set_cpufuncs()) 532 panic("cpu not recognized!"); 533 534 /* map some peripheral registers at static I/O area */ 535 pmap_devmap_bootstrap((vaddr_t)read_ttb(), gumstix_devmap); 536 537 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 538 /* start 32.768kHz OSC */ 539 ioreg_write(GUMSTIX_CLKMAN_VBASE + CLKMAN_OSCC, OSCC_OON); 540 541 /* Get ready for splfoo() */ 542 pxa2x0_intr_bootstrap(GUMSTIX_INTCTL_VBASE); 543 544 /* setup GPIO for {FF,ST,HW}UART. */ 545 pxa2x0_gpio_bootstrap(GUMSTIX_GPIO_VBASE); 546 547 pxa2x0_clkman_bootstrap(GUMSTIX_CLKMAN_VBASE); 548 #elif defined(CPU_CORTEXA8) 549 { 550 void cortexa8_pmc_ccnt_init(void); 551 552 cortexa8_pmc_ccnt_init(); 553 } 554 #endif 555 556 cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT); 557 558 /* configure GPIOs. */ 559 gxio_config_pin(); 560 561 562 #ifndef GUMSTIX_NETBSD_ARGS_CONSOLE 563 consinit(); 564 #endif 565 #ifdef KGDB 566 kgdb_port_init(); 567 #endif 568 569 /* 570 * Examine the boot args string for options we need to know about 571 * now. 572 */ 573 #if defined(GUMSTIX) 574 #define SDRAM_START 0xa0000000UL 575 #elif defined(OVERO) 576 #define SDRAM_START 0x80000000UL 577 #endif 578 if (((uint32_t)u_boot_args[r0] & 0xf0000000) != SDRAM_START) 579 /* Maybe r0 is 'argc'. We are booted by command 'go'. */ 580 process_kernel_args((int)u_boot_args[r0], 581 (char **)u_boot_args[r1]); 582 else 583 /* 584 * Maybe r3 is 'boot args string' of 'bootm'. This string is 585 * linely. 586 */ 587 process_kernel_args_liner((char *)u_boot_args[r3]); 588 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 589 consinit(); 590 #endif 591 592 /* Talk to the user */ 593 #define BDSTR(s) _BDSTR(s) 594 #define _BDSTR(s) #s 595 printf("\nNetBSD/evbarm (" BDSTR(EVBARM_BOARDTYPE) ") booting ...\n"); 596 597 /* Read system serial */ 598 #if defined(GUMSTIX) 599 read_system_serial(); 600 #endif 601 602 memstart = SDRAM_START; 603 memsize = ram_size; 604 605 #ifdef VERBOSE_INIT_ARM 606 printf("initarm: Configuring system ...\n"); 607 #endif 608 609 /* Fake bootconfig structure for the benefit of pmap.c */ 610 /* XXX must make the memory description h/w independent */ 611 bootconfig.dramblocks = 1; 612 bootconfig.dram[0].address = memstart; 613 bootconfig.dram[0].pages = memsize / PAGE_SIZE; 614 615 /* 616 * Set up the variables that define the availablilty of 617 * physical memory. For now, we're going to set 618 * physical_freestart to 0xa0200000 (where the kernel 619 * was loaded), and allocate the memory we need downwards. 620 * If we get too close to the L1 table that we set up, we 621 * will panic. We will update physical_freestart and 622 * physical_freeend later to reflect what pmap_bootstrap() 623 * wants to see. 624 * 625 * XXX pmap_bootstrap() needs an enema. 626 */ 627 physical_start = bootconfig.dram[0].address; 628 physical_end = physical_start + memsize; 629 630 #if defined(GUMSTIX) 631 physical_freestart = 0xa0009000UL; 632 physical_freeend = 0xa0200000UL; 633 #elif defined(OVERO) 634 physical_freestart = 0x80009000UL; 635 physical_freeend = 0x80200000UL; 636 #endif 637 638 physmem = (physical_end - physical_start) / PAGE_SIZE; 639 640 #ifdef VERBOSE_INIT_ARM 641 /* Tell the user about the memory */ 642 printf("physmemory: %d pages at 0x%08lx -> 0x%08lx\n", physmem, 643 physical_start, physical_end - 1); 644 #endif 645 646 /* 647 * Okay, the kernel starts 2MB in from the bottom of physical 648 * memory. We are going to allocate our bootstrap pages downwards 649 * from there. 650 * 651 * We need to allocate some fixed page tables to get the kernel 652 * going. We allocate one page directory and a number of page 653 * tables and store the physical addresses in the kernel_pt_table 654 * array. 655 * 656 * The kernel page directory must be on a 16K boundary. The page 657 * tables must be on 4K bounaries. What we do is allocate the 658 * page directory on the first 16K boundary that we encounter, and 659 * the page tables on 4K boundaries otherwise. Since we allocate 660 * at least 3 L2 page tables, we are guaranteed to encounter at 661 * least one 16K aligned region. 662 */ 663 664 #ifdef VERBOSE_INIT_ARM 665 printf("Allocating page tables\n"); 666 #endif 667 668 free_pages = (physical_freeend - physical_freestart) / PAGE_SIZE; 669 670 #ifdef VERBOSE_INIT_ARM 671 printf("freestart = 0x%08lx, free_pages = %d (0x%08x)\n", 672 physical_freestart, free_pages, free_pages); 673 #endif 674 675 /* Define a macro to simplify memory allocation */ 676 #define valloc_pages(var, np) \ 677 alloc_pages((var).pv_pa, (np)); \ 678 (var).pv_va = KERNEL_BASE + (var).pv_pa - physical_start; 679 680 #define alloc_pages(var, np) \ 681 physical_freeend -= ((np) * PAGE_SIZE); \ 682 if (physical_freeend < physical_freestart) \ 683 panic("initarm: out of memory"); \ 684 (var) = physical_freeend; \ 685 free_pages -= (np); \ 686 memset((char *)(var), 0, ((np) * PAGE_SIZE)); 687 688 loop1 = 0; 689 for (loop = 0; loop <= NUM_KERNEL_PTS; ++loop) { 690 /* Are we 16KB aligned for an L1 ? */ 691 if ((physical_freeend & (L1_TABLE_SIZE - 1)) == 0 && 692 kernel_l1pt.pv_pa == 0) { 693 valloc_pages(kernel_l1pt, L1_TABLE_SIZE / PAGE_SIZE); 694 } else { 695 valloc_pages(kernel_pt_table[loop1], 696 L2_TABLE_SIZE / PAGE_SIZE); 697 ++loop1; 698 } 699 } 700 701 /* This should never be able to happen but better confirm that. */ 702 if (!kernel_l1pt.pv_pa || (kernel_l1pt.pv_pa & (L1_TABLE_SIZE-1)) != 0) 703 panic("initarm: Failed to align the kernel page directory"); 704 705 /* 706 * Allocate a page for the system page mapped to V0x00000000 707 * This page will just contain the system vectors and can be 708 * shared by all processes. 709 */ 710 alloc_pages(systempage.pv_pa, 1); 711 #if defined(CPU_CORTEXA8) 712 systempage.pv_va = ARM_VECTORS_HIGH; 713 #endif 714 715 /* Allocate stacks for all modes */ 716 valloc_pages(irqstack, IRQ_STACK_SIZE); 717 valloc_pages(abtstack, ABT_STACK_SIZE); 718 valloc_pages(undstack, UND_STACK_SIZE); 719 valloc_pages(kernelstack, UPAGES); 720 721 /* Allocate enough pages for cleaning the Mini-Data cache. */ 722 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 723 KASSERT(xscale_minidata_clean_size <= PAGE_SIZE); 724 #endif 725 valloc_pages(minidataclean, 1); 726 727 #ifdef VERBOSE_INIT_ARM 728 printf("IRQ stack: p0x%08lx v0x%08lx\n", irqstack.pv_pa, 729 irqstack.pv_va); 730 printf("ABT stack: p0x%08lx v0x%08lx\n", abtstack.pv_pa, 731 abtstack.pv_va); 732 printf("UND stack: p0x%08lx v0x%08lx\n", undstack.pv_pa, 733 undstack.pv_va); 734 printf("SVC stack: p0x%08lx v0x%08lx\n", kernelstack.pv_pa, 735 kernelstack.pv_va); 736 #endif 737 738 /* 739 * XXX Defer this to later so that we can reclaim the memory 740 * XXX used by the RedBoot page tables. 741 */ 742 alloc_pages(msgbufphys, round_page(MSGBUFSIZE) / PAGE_SIZE); 743 744 /* 745 * Ok we have allocated physical pages for the primary kernel 746 * page tables 747 */ 748 749 #ifdef VERBOSE_INIT_ARM 750 printf("Creating L1 page table at 0x%08lx\n", kernel_l1pt.pv_pa); 751 #endif 752 753 /* 754 * Now we start construction of the L1 page table 755 * We start by mapping the L2 page tables into the L1. 756 * This means that we can replace L1 mappings later on if necessary 757 */ 758 l1pagetable = kernel_l1pt.pv_va; 759 760 /* Map the L2 pages tables in the L1 page table */ 761 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 762 pmap_link_l2pt(l1pagetable, 0x00000000, 763 &kernel_pt_table[KERNEL_PT_SYS]); 764 #elif defined(CPU_CORTEXA8) 765 pmap_link_l2pt(l1pagetable, ARM_VECTORS_HIGH & ~(0x00400000 - 1), 766 &kernel_pt_table[KERNEL_PT_SYS]); 767 #endif 768 for (loop = 0; loop < KERNEL_PT_KERNEL_NUM; loop++) 769 pmap_link_l2pt(l1pagetable, KERNEL_BASE + loop * 0x00400000, 770 &kernel_pt_table[KERNEL_PT_KERNEL + loop]); 771 for (loop = 0; loop < KERNEL_PT_VMDATA_NUM; loop++) 772 pmap_link_l2pt(l1pagetable, KERNEL_VM_BASE + loop * 0x00400000, 773 &kernel_pt_table[KERNEL_PT_VMDATA + loop]); 774 775 /* update the top of the kernel VM */ 776 pmap_curmaxkvaddr = 777 KERNEL_VM_BASE + (KERNEL_PT_VMDATA_NUM * 0x00400000); 778 779 #ifdef VERBOSE_INIT_ARM 780 printf("Mapping kernel\n"); 781 #endif 782 783 /* Now we fill in the L2 pagetable for the kernel static code/data */ 784 { 785 extern char etext[], _end[]; 786 size_t textsize = (uintptr_t) etext - KERNEL_TEXT_BASE; 787 size_t totalsize = (uintptr_t) _end - KERNEL_TEXT_BASE; 788 u_int logical; 789 790 textsize = (textsize + PGOFSET) & ~PGOFSET; 791 totalsize = (totalsize + PGOFSET) & ~PGOFSET; 792 793 logical = 0x00200000; /* offset of kernel in RAM */ 794 795 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 796 physical_start + logical, textsize, 797 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 798 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 799 physical_start + logical, totalsize - textsize, 800 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 801 } 802 803 #ifdef VERBOSE_INIT_ARM 804 printf("Constructing L2 page tables\n"); 805 #endif 806 807 /* Map the stack pages */ 808 pmap_map_chunk(l1pagetable, irqstack.pv_va, irqstack.pv_pa, 809 IRQ_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 810 pmap_map_chunk(l1pagetable, abtstack.pv_va, abtstack.pv_pa, 811 ABT_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 812 pmap_map_chunk(l1pagetable, undstack.pv_va, undstack.pv_pa, 813 UND_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 814 pmap_map_chunk(l1pagetable, kernelstack.pv_va, kernelstack.pv_pa, 815 UPAGES * PAGE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_CACHE); 816 817 pmap_map_chunk(l1pagetable, kernel_l1pt.pv_va, kernel_l1pt.pv_pa, 818 L1_TABLE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_PAGETABLE); 819 820 for (loop = 0; loop < NUM_KERNEL_PTS; ++loop) { 821 pmap_map_chunk(l1pagetable, kernel_pt_table[loop].pv_va, 822 kernel_pt_table[loop].pv_pa, L2_TABLE_SIZE, 823 VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE); 824 } 825 826 /* Map the Mini-Data cache clean area. */ 827 #if defined(GUMSTIX) 828 xscale_setup_minidata(l1pagetable, minidataclean.pv_va, 829 minidataclean.pv_pa); 830 #endif 831 832 /* Map the vector page. */ 833 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 834 #if 1 835 /* MULTI-ICE requires that page 0 is NC/NB so that it can download the 836 * cache-clean code there. */ 837 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 838 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE); 839 #else 840 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 841 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 842 #endif 843 #elif defined(CPU_CORTEXA8) 844 pmap_map_entry(l1pagetable, ARM_VECTORS_HIGH, systempage.pv_pa, 845 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 846 #endif 847 848 /* 849 * map integrated peripherals at same address in l1pagetable 850 * so that we can continue to use console. 851 */ 852 pmap_devmap_bootstrap(l1pagetable, gumstix_devmap); 853 854 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 855 /* 856 * Give the XScale global cache clean code an appropriately 857 * sized chunk of unmapped VA space starting at 0xff000000 858 * (our device mappings end before this address). 859 */ 860 xscale_cache_clean_addr = 0xff000000U; 861 #endif 862 863 /* 864 * Now we have the real page tables in place so we can switch to them. 865 * Once this is done we will be running with the REAL kernel page 866 * tables. 867 */ 868 869 /* 870 * Update the physical_freestart/physical_freeend/free_pages 871 * variables. 872 */ 873 { 874 extern char _end[]; 875 876 physical_freestart = physical_start + 877 (((((uintptr_t) _end) + PGOFSET) & ~PGOFSET) - 878 KERNEL_BASE); 879 physical_freeend = physical_end; 880 free_pages = 881 (physical_freeend - physical_freestart) / PAGE_SIZE; 882 } 883 884 /* Switch tables */ 885 #ifdef VERBOSE_INIT_ARM 886 printf("freestart = 0x%08lx, free_pages = %d (0x%x)\n", 887 physical_freestart, free_pages, free_pages); 888 printf("switching to new L1 page table @%#lx...", kernel_l1pt.pv_pa); 889 #endif 890 891 cpu_setttb(kernel_l1pt.pv_pa); 892 cpu_tlb_flushID(); 893 cpu_domains(DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)); 894 895 /* 896 * Moved from cpu_startup() as data_abort_handler() references 897 * this during uvm init 898 */ 899 uvm_lwp_setuarea(&lwp0, kernelstack.pv_va); 900 901 #ifdef VERBOSE_INIT_ARM 902 printf("bootstrap done.\n"); 903 #endif 904 905 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 906 arm32_vector_init(ARM_VECTORS_LOW, ARM_VEC_ALL); 907 #elif defined(CPU_CORTEXA8) 908 arm32_vector_init(ARM_VECTORS_HIGH, ARM_VEC_ALL); 909 #endif 910 911 /* 912 * Pages were allocated during the secondary bootstrap for the 913 * stacks for different CPU modes. 914 * We must now set the r13 registers in the different CPU modes to 915 * point to these stacks. 916 * Since the ARM stacks use STMFD etc. we must set r13 to the top end 917 * of the stack memory. 918 */ 919 #ifdef VERBOSE_INIT_ARM 920 printf("init subsystems: stacks "); 921 #endif 922 923 set_stackptr(PSR_IRQ32_MODE, 924 irqstack.pv_va + IRQ_STACK_SIZE * PAGE_SIZE); 925 set_stackptr(PSR_ABT32_MODE, 926 abtstack.pv_va + ABT_STACK_SIZE * PAGE_SIZE); 927 set_stackptr(PSR_UND32_MODE, 928 undstack.pv_va + UND_STACK_SIZE * PAGE_SIZE); 929 930 /* 931 * Well we should set a data abort handler. 932 * Once things get going this will change as we will need a proper 933 * handler. 934 * Until then we will use a handler that just panics but tells us 935 * why. 936 * Initialisation of the vectors will just panic on a data abort. 937 * This just fills in a slighly better one. 938 */ 939 #ifdef VERBOSE_INIT_ARM 940 printf("vectors "); 941 #endif 942 data_abort_handler_address = (u_int)data_abort_handler; 943 prefetch_abort_handler_address = (u_int)prefetch_abort_handler; 944 undefined_handler_address = (u_int)undefinedinstruction_bounce; 945 946 /* Initialise the undefined instruction handlers */ 947 #ifdef VERBOSE_INIT_ARM 948 printf("undefined "); 949 #endif 950 undefined_init(); 951 952 /* Load memory into UVM. */ 953 #ifdef VERBOSE_INIT_ARM 954 printf("page "); 955 #endif 956 uvm_setpagesize(); /* initialize PAGE_SIZE-dependent variables */ 957 uvm_page_physload(atop(physical_freestart), atop(physical_freeend), 958 atop(physical_freestart), atop(physical_freeend), 959 VM_FREELIST_DEFAULT); 960 961 /* Boot strap pmap telling it where the kernel page table is */ 962 #ifdef VERBOSE_INIT_ARM 963 printf("pmap "); 964 #endif 965 pmap_bootstrap(KERNEL_VM_BASE, KERNEL_VM_BASE + KERNEL_VM_SIZE); 966 967 #ifdef __HAVE_MEMORY_DISK__ 968 md_root_setconf(memory_disk, sizeof memory_disk); 969 #endif 970 971 #ifdef BOOTHOWTO 972 boothowto |= BOOTHOWTO; 973 #endif 974 975 #ifdef KGDB 976 if (boothowto & RB_KDB) { 977 kgdb_debug_init = 1; 978 kgdb_connect(1); 979 } 980 #endif 981 982 #if NKSYMS || defined(DDB) || defined(MODULAR) 983 /* Firmware doesn't load symbols. */ 984 ddb_init(0, NULL, NULL); 985 #endif 986 987 #ifdef DDB 988 db_machine_init(); 989 if (boothowto & RB_KDB) 990 Debugger(); 991 #endif 992 993 /* We have our own device_register() */ 994 evbarm_device_register = gumstix_device_register; 995 996 /* We return the new stack pointer address */ 997 return(kernelstack.pv_va + USPACE_SVC_STACK_TOP); 998 } 999 1000 #if defined(GUMSTIX) 1001 static void 1002 read_system_serial(void) 1003 { 1004 #define GUMSTIX_SYSTEM_SERIAL_ADDR 0 1005 #define GUMSTIX_SYSTEM_SERIAL_SIZE 8 1006 #define FLASH_OFFSET_INTEL_PROTECTION 0x81 1007 #define FLASH_OFFSET_USER_PROTECTION 0x85 1008 #define FLASH_CMD_READ_ID 0x90 1009 #define FLASH_CMD_RESET 0xff 1010 int i; 1011 char system_serial[GUMSTIX_SYSTEM_SERIAL_SIZE], *src; 1012 char x; 1013 1014 src = (char *)(FLASH_OFFSET_USER_PROTECTION * 2 /*word*/); 1015 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1016 memcpy(system_serial, 1017 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1018 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1019 1020 for (i = 1, x = system_serial[0]; i < sizeof (system_serial); i++) 1021 x &= system_serial[i]; 1022 if (x == 0xff) { 1023 src = (char *)(FLASH_OFFSET_INTEL_PROTECTION * 2 /*word*/); 1024 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1025 memcpy(system_serial, 1026 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1027 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1028 1029 /* 1030 * XXXX: Don't need ??? 1031 * gumstix_serial_hash(system_serial); 1032 */ 1033 } 1034 system_serial_high = system_serial[0] << 24 | system_serial[1] << 16 | 1035 system_serial[2] << 8 | system_serial[3]; 1036 system_serial_low = system_serial[4] << 24 | system_serial[5] << 16 | 1037 system_serial[6] << 8 | system_serial[7]; 1038 1039 printf("system serial: 0x"); 1040 for (i = 0; i < sizeof (system_serial); i++) 1041 printf("%02x", system_serial[i]); 1042 printf("\n"); 1043 } 1044 #endif 1045 1046 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1047 static const char busheader_name[] = "busheader="; 1048 #endif 1049 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1050 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1051 static const char expansion_name[] = "expansion="; 1052 #endif 1053 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1054 static const char console_name[] = "console="; 1055 #endif 1056 static void 1057 process_kernel_args(int argc, char *argv[]) 1058 { 1059 int gxio_configured = 0, i, j; 1060 1061 boothowto = 0; 1062 1063 for (i = 1, j = 0; i < argc; i++) { 1064 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1065 if (!strncmp(argv[i], busheader_name, strlen(busheader_name))) { 1066 /* Configure for GPIOs of busheader side */ 1067 gxio_config_expansion(argv[i] + strlen(busheader_name)); 1068 gxio_configured = 1; 1069 continue; 1070 } 1071 #endif 1072 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1073 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1074 if (!strncmp(argv[i], expansion_name, strlen(expansion_name))) { 1075 /* Configure expansion */ 1076 gxio_config_expansion(argv[i] + strlen(expansion_name)); 1077 gxio_configured = 1; 1078 continue; 1079 } 1080 #endif 1081 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1082 if (!strncmp(argv[i], console_name, strlen(console_name))) { 1083 strncpy(console, argv[i] + strlen(console_name), 1084 sizeof(console)); 1085 consinit(); 1086 } 1087 #endif 1088 if (j == MAX_BOOT_STRING) { 1089 *(bootargs + j) = '\0'; 1090 continue; 1091 } 1092 if (j != 0) 1093 *(bootargs + j++) = ' '; 1094 strncpy(bootargs + j, argv[i], MAX_BOOT_STRING - j); 1095 j += strlen(argv[i]); 1096 } 1097 boot_args = bootargs; 1098 1099 parse_mi_bootargs(boot_args); 1100 1101 if (!gxio_configured) 1102 gxio_config_expansion(NULL); 1103 } 1104 1105 static void 1106 process_kernel_args_liner(char *args) 1107 { 1108 int i = 0; 1109 char *p = NULL; 1110 1111 boothowto = 0; 1112 1113 strncpy(bootargs, args, sizeof(bootargs)); 1114 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1115 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1116 { 1117 char *q; 1118 1119 if ((p = strstr(bootargs, expansion_name))) 1120 q = p + strlen(expansion_name); 1121 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1122 else if ((p = strstr(bootargs, busheader_name))) 1123 q = p + strlen(busheader_name); 1124 #endif 1125 if (p) { 1126 char expansion[256], c; 1127 1128 i = 0; 1129 do { 1130 c = *(q + i); 1131 if (c == ' ') 1132 c = '\0'; 1133 expansion[i++] = c; 1134 } while (c != '\0' && i < sizeof(expansion)); 1135 gxio_config_expansion(expansion); 1136 strcpy(p, q + i); 1137 } 1138 } 1139 #endif 1140 if (p == NULL) 1141 gxio_config_expansion(NULL); 1142 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1143 p = strstr(bootargs, console_name); 1144 if (p != NULL) { 1145 char c; 1146 1147 i = 0; 1148 do { 1149 c = *(p + strlen(console_name) + i); 1150 if (c == ' ') 1151 c = '\0'; 1152 console[i++] = c; 1153 } while (c != '\0' && i < sizeof(console)); 1154 consinit(); 1155 strcpy(p, p + strlen(console_name) + i); 1156 } 1157 #endif 1158 boot_args = bootargs; 1159 1160 parse_mi_bootargs(boot_args); 1161 } 1162 1163 #ifdef KGDB 1164 #ifndef KGDB_DEVNAME 1165 #define KGDB_DEVNAME "ffuart" 1166 #endif 1167 const char kgdb_devname[] = KGDB_DEVNAME; 1168 1169 #ifndef KGDB_DEVRATE 1170 #define KGDB_DEVRATE CONSPEED 1171 #endif 1172 int kgdb_devrate = KGDB_DEVRATE; 1173 1174 #if (NCOM > 0) 1175 #ifndef KGDB_DEVMODE 1176 #define KGDB_DEVMODE CONMODE 1177 #endif 1178 int comkgdbmode = KGDB_DEVMODE; 1179 #endif /* NCOM */ 1180 1181 #endif /* KGDB */ 1182 1183 1184 void 1185 consinit(void) 1186 { 1187 static int consinit_called = 0; 1188 1189 if (consinit_called != 0) 1190 return; 1191 1192 consinit_called = 1; 1193 1194 #if NCOM > 0 1195 1196 #if defined(GUMSTIX) 1197 1198 #ifdef FFUARTCONSOLE 1199 #ifdef KGDB 1200 if (strcmp(kgdb_devname, "ffuart") == 0){ 1201 /* port is reserved for kgdb */ 1202 } else 1203 #endif 1204 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1205 if (console[0] == '\0' || strcasecmp(console, "ffuart") == 0) 1206 #endif 1207 { 1208 int rv; 1209 1210 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_FFUART_BASE, 1211 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1212 if (rv == 0) { 1213 pxa2x0_clkman_config(CKEN_FFUART, 1); 1214 return; 1215 } 1216 } 1217 #endif /* FFUARTCONSOLE */ 1218 1219 #ifdef STUARTCONSOLE 1220 #ifdef KGDB 1221 if (strcmp(kgdb_devname, "stuart") == 0) { 1222 /* port is reserved for kgdb */ 1223 } else 1224 #endif 1225 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1226 if (console[0] == '\0' || strcasecmp(console, "stuart") == 0) 1227 #endif 1228 { 1229 int rv; 1230 1231 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_STUART_BASE, 1232 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1233 if (rv == 0) { 1234 pxa2x0_clkman_config(CKEN_STUART, 1); 1235 return; 1236 } 1237 } 1238 #endif /* STUARTCONSOLE */ 1239 1240 #ifdef BTUARTCONSOLE 1241 #ifdef KGDB 1242 if (strcmp(kgdb_devname, "btuart") == 0) { 1243 /* port is reserved for kgdb */ 1244 } else 1245 #endif 1246 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1247 if (console[0] == '\0' || strcasecmp(console, "btuart") == 0) 1248 #endif 1249 { 1250 int rv; 1251 1252 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_BTUART_BASE, 1253 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1254 if (rv == 0) { 1255 pxa2x0_clkman_config(CKEN_BTUART, 1); 1256 return; 1257 } 1258 } 1259 #endif /* BTUARTCONSOLE */ 1260 1261 #ifdef HWUARTCONSOLE 1262 #ifdef KGDB 1263 if (strcmp(kgdb_devname, "hwuart") == 0) { 1264 /* port is reserved for kgdb */ 1265 } else 1266 #endif 1267 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1268 if (console[0] == '\0' || strcasecmp(console, "hwuart") == 0) 1269 #endif 1270 { 1271 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_HWUART_BASE, 1272 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1273 if (rv == 0) { 1274 pxa2x0_clkman_config(CKEN_HWUART, 1); 1275 return; 1276 } 1277 } 1278 #endif /* HWUARTCONSOLE */ 1279 1280 #elif defined(OVERO) 1281 1282 if (comcnattach(&omap_a4x_bs_tag, 0x49020000, comcnspeed, 1283 OMAP_COM_FREQ, COM_TYPE_NORMAL, comcnmode) == 0) 1284 return; 1285 1286 #endif /* GUMSTIX or OVERO */ 1287 1288 #endif /* NCOM */ 1289 1290 #if NLCD > 0 1291 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1292 if (console[0] == '\0' || strcasecmp(console, "lcd") == 0) 1293 #endif 1294 { 1295 gxlcd_cnattach(); 1296 } 1297 #endif 1298 } 1299 1300 #ifdef KGDB 1301 static void 1302 kgdb_port_init(void) 1303 { 1304 #if (NCOM > 0) && defined(COM_PXA2X0) 1305 paddr_t paddr = 0; 1306 int cken = 0; 1307 1308 if (0 == strcmp(kgdb_devname, "ffuart")) { 1309 paddr = PXA2X0_FFUART_BASE; 1310 cken = CKEN_FFUART; 1311 } else if (0 == strcmp(kgdb_devname, "stuart")) { 1312 paddr = PXA2X0_STUART_BASE; 1313 cken = CKEN_STUART; 1314 } else if (0 == strcmp(kgdb_devname, "btuart")) { 1315 paddr = PXA2X0_BTUART_BASE; 1316 cken = CKEN_BTUART; 1317 } else if (0 == strcmp(kgdb_devname, "hwuart")) { 1318 paddr = PXA2X0_HWUART_BASE; 1319 cken = CKEN_HWUART; 1320 } 1321 1322 if (paddr && 1323 0 == com_kgdb_attach(&pxa2x0_a4x_bs_tag, paddr, 1324 kgdb_devrate, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comkgdbmode)) { 1325 1326 pxa2x0_clkman_config(cken, 1); 1327 } 1328 1329 #endif 1330 } 1331 #endif 1332 1333 static void 1334 gumstix_device_register(device_t dev, void *aux) 1335 { 1336 1337 if (device_is_a(dev, "ohci")) { 1338 if (prop_dictionary_set_bool(device_properties(dev), 1339 "Ganged-power-mask-on-port1", 1) == false) { 1340 printf("WARNING: unable to set power-mask for port1" 1341 " property for %s\n", dev->dv_xname); 1342 } 1343 if (prop_dictionary_set_bool(device_properties(dev), 1344 "Ganged-power-mask-on-port2", 1) == false) { 1345 printf("WARNING: unable to set power-mask for port2" 1346 " property for %s\n", dev->dv_xname); 1347 } 1348 if (prop_dictionary_set_bool(device_properties(dev), 1349 "Ganged-power-mask-on-port3", 1) == false) { 1350 printf("WARNING: unable to set power-mask for port3" 1351 " property for %s\n", dev->dv_xname); 1352 } 1353 } 1354 } 1355
Indexes created Sat Oct 11 19:10:01 GMT 2025