gumstix_machdep.c revision 1.39
1 /* $NetBSD: gumstix_machdep.c,v 1.39 2012/07/29 00:07:08 matt 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 dependent 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 dependent functions for kernel setup for Intel IQ80310 evaluation 137 * boards using RedBoot firmware. 138 */ 139 140 #include "opt_evbarm_boardtype.h" 141 #include "opt_cputypes.h" 142 #include "opt_gumstix.h" 143 #ifdef OVERO 144 #include "opt_omap.h" 145 #include "prcm.h" 146 #endif 147 #include "opt_ddb.h" 148 #include "opt_kgdb.h" 149 #include "opt_pmap_debug.h" 150 #include "opt_md.h" 151 #include "opt_modular.h" 152 #include "opt_com.h" 153 154 #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 <sys/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_prcm.h> 176 #include <arm/omap/omap2_reg.h> 177 #include <arm/omap/omap_var.h> 178 #include <arm/omap/omap_com.h> 179 #include <arm/undefined.h> 180 #include <arm/xscale/pxa2x0reg.h> 181 #include <arm/xscale/pxa2x0var.h> 182 #include <arm/xscale/pxa2x0_gpio.h> 183 #include <evbarm/gumstix/gumstixreg.h> 184 #include <evbarm/gumstix/gumstixvar.h> 185 186 #include <uvm/uvm_extern.h> 187 188 #include <dev/cons.h> 189 #include <dev/md.h> 190 191 #include <ddb/db_sym.h> 192 #include <ddb/db_extern.h> 193 #ifdef KGDB 194 #include <sys/kgdb.h> 195 #endif 196 197 /* Kernel text starts 2MB in from the bottom of the kernel address space. */ 198 #define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00200000) 199 #ifndef KERNEL_VM_BASE 200 #define KERNEL_VM_BASE (KERNEL_BASE + 0x01000000) 201 #endif 202 203 /* 204 * The range 0xc1000000 - 0xccffffff is available for kernel VM space 205 * Core-logic registers and I/O mappings occupy 0xfd000000 - 0xffffffff 206 */ 207 #define KERNEL_VM_SIZE 0x0C000000 208 209 210 /* 211 * Address to call from cpu_reset() to reset the machine. 212 * This is machine architecture dependent as it varies depending 213 * on where the ROM appears when you turn the MMU off. 214 */ 215 216 u_int cpu_reset_address = 0; 217 218 /* Define various stack sizes in pages */ 219 #define IRQ_STACK_SIZE 1 220 #define ABT_STACK_SIZE 1 221 #define UND_STACK_SIZE 1 222 223 BootConfig bootconfig; /* Boot config storage */ 224 static char bootargs[MAX_BOOT_STRING]; 225 const size_t bootargs_len = sizeof(bootargs) - 1; /* without nul */ 226 char *boot_args = NULL; 227 228 uint32_t system_serial_high; 229 uint32_t system_serial_low; 230 231 vm_offset_t physical_start; 232 vm_offset_t physical_freestart; 233 vm_offset_t physical_freeend; 234 vm_offset_t physical_end; 235 u_int free_pages; 236 237 /*int debug_flags;*/ 238 #ifndef PMAP_STATIC_L1S 239 int max_processes = 64; /* Default number */ 240 #endif /* !PMAP_STATIC_L1S */ 241 242 vm_offset_t msgbufphys; 243 244 #ifdef PMAP_DEBUG 245 extern int pmap_debug_level; 246 #endif 247 248 #define KERNEL_PT_SYS 0 /* Page table for mapping proc0 zero page */ 249 #define KERNEL_PT_KERNEL 1 /* Page table for mapping kernel */ 250 #define KERNEL_PT_KERNEL_NUM ((KERNEL_VM_BASE - KERNEL_BASE) >> 22) 251 #define KERNEL_PT_VMDATA (KERNEL_PT_KERNEL+KERNEL_PT_KERNEL_NUM) 252 /* Page tables for mapping kernel VM */ 253 #define KERNEL_PT_VMDATA_NUM 4 /* start with 16MB of KVM */ 254 #define NUM_KERNEL_PTS (KERNEL_PT_VMDATA + KERNEL_PT_VMDATA_NUM) 255 256 pv_addr_t kernel_pt_table[NUM_KERNEL_PTS]; 257 258 /* Prototypes */ 259 #if defined(GUMSTIX) 260 static void read_system_serial(void); 261 #endif 262 static void process_kernel_args(int, char *[]); 263 static void process_kernel_args_liner(char *); 264 #ifdef KGDB 265 static void kgdb_port_init(void); 266 #endif 267 static void gumstix_device_register(device_t, void *); 268 269 bs_protos(bs_notimpl); 270 271 #include "com.h" 272 #if NCOM > 0 273 #include <dev/ic/comreg.h> 274 #include <dev/ic/comvar.h> 275 #endif 276 277 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 278 #include "lcd.h" 279 #endif 280 281 #ifndef CONSPEED 282 #define CONSPEED B115200 /* It's a setting of the default of u-boot */ 283 #endif 284 #ifndef CONMODE 285 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 286 #endif 287 288 int comcnspeed = CONSPEED; 289 int comcnmode = CONMODE; 290 291 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 292 static char console[16]; 293 #endif 294 295 extern void gxio_config_pin(void); 296 extern void gxio_config_expansion(char *); 297 298 /* 299 * void cpu_reboot(int howto, char *bootstr) 300 * 301 * Deal with any syncing, unmounting, dumping and shutdown hooks, 302 * then reset the CPU. 303 */ 304 void 305 cpu_reboot(int howto, char *bootstr) 306 { 307 308 #ifdef DIAGNOSTIC 309 /* info */ 310 printf("boot: howto=%08x curproc=%p\n", howto, curproc); 311 #endif 312 313 /* 314 * If we are still cold then hit the air brakes 315 * and crash to earth fast 316 */ 317 if (cold) { 318 doshutdownhooks(); 319 pmf_system_shutdown(boothowto); 320 printf("The operating system has halted.\n"); 321 printf("Please press any key to reboot.\n\n"); 322 cngetc(); 323 printf("rebooting...\n"); 324 #if defined(OMAP_3530) && NPRCM > 0 325 prcm_cold_reset(); 326 #endif 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 #if defined(OMAP_3530) && NPRCM > 0 364 prcm_cold_reset(); 365 #endif 366 cpu_reset(); 367 /*NOTREACHED*/ 368 } 369 370 static inline pd_entry_t * 371 read_ttb(void) 372 { 373 long ttb; 374 375 __asm volatile("mrc p15, 0, %0, c2, c0, 0" : "=r" (ttb)); 376 377 return (pd_entry_t *)(ttb & ~((1<<14)-1)); 378 } 379 380 /* 381 * Static device mappings. These peripheral registers are mapped at 382 * fixed virtual addresses very early in initarm() so that we can use 383 * them while booting the kernel, and stay at the same address 384 * throughout whole kernel's life time. 385 * 386 * We use this table twice; once with bootstrap page table, and once 387 * with kernel's page table which we build up in initarm(). 388 * 389 * Since we map these registers into the bootstrap page table using 390 * pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map 391 * registers segment-aligned and segment-rounded in order to avoid 392 * using the 2nd page tables. 393 */ 394 395 #define _A(a) ((a) & ~L1_S_OFFSET) 396 #define _S(s) (((s) + L1_S_SIZE - 1) & ~(L1_S_SIZE-1)) 397 398 static const struct pmap_devmap gumstix_devmap[] = { 399 #if defined(GUMSTIX) 400 { 401 GUMSTIX_GPIO_VBASE, 402 _A(PXA2X0_GPIO_BASE), 403 _S(PXA250_GPIO_SIZE), 404 VM_PROT_READ | VM_PROT_WRITE, 405 PTE_NOCACHE, 406 }, 407 { 408 GUMSTIX_CLKMAN_VBASE, 409 _A(PXA2X0_CLKMAN_BASE), 410 _S(PXA2X0_CLKMAN_SIZE), 411 VM_PROT_READ | VM_PROT_WRITE, 412 PTE_NOCACHE, 413 }, 414 { 415 GUMSTIX_INTCTL_VBASE, 416 _A(PXA2X0_INTCTL_BASE), 417 _S(PXA2X0_INTCTL_SIZE), 418 VM_PROT_READ | VM_PROT_WRITE, 419 PTE_NOCACHE, 420 }, 421 { 422 GUMSTIX_FFUART_VBASE, 423 _A(PXA2X0_FFUART_BASE), 424 _S(4 * COM_NPORTS), 425 VM_PROT_READ | VM_PROT_WRITE, 426 PTE_NOCACHE, 427 }, 428 { 429 GUMSTIX_STUART_VBASE, 430 _A(PXA2X0_STUART_BASE), 431 _S(4 * COM_NPORTS), 432 VM_PROT_READ | VM_PROT_WRITE, 433 PTE_NOCACHE, 434 }, 435 { 436 GUMSTIX_BTUART_VBASE, 437 _A(PXA2X0_BTUART_BASE), 438 _S(4 * COM_NPORTS), 439 VM_PROT_READ | VM_PROT_WRITE, 440 PTE_NOCACHE, 441 }, 442 { 443 GUMSTIX_HWUART_VBASE, 444 _A(PXA2X0_HWUART_BASE), 445 _S(4 * COM_NPORTS), 446 VM_PROT_READ | VM_PROT_WRITE, 447 PTE_NOCACHE, 448 }, 449 { 450 GUMSTIX_LCDC_VBASE, 451 _A(PXA2X0_LCDC_BASE), 452 _S(4 * COM_NPORTS), 453 VM_PROT_READ | VM_PROT_WRITE, 454 PTE_NOCACHE, 455 }, 456 #elif defined(OVERO) 457 { 458 OVERO_L4_PERIPHERAL_VBASE, 459 _A(OMAP3530_L4_PERIPHERAL_BASE), 460 _S(OMAP3530_L4_PERIPHERAL_SIZE), 461 VM_PROT_READ | VM_PROT_WRITE, 462 PTE_NOCACHE 463 }, 464 { 465 OVERO_GPMC_VBASE, 466 _A(GPMC_BASE), 467 _S(GPMC_SIZE), 468 VM_PROT_READ | VM_PROT_WRITE, 469 PTE_NOCACHE 470 }, 471 #endif 472 { 0, 0, 0, 0, 0 } 473 }; 474 475 #undef _A 476 #undef _S 477 478 479 /* 480 * u_int initarm(...) 481 * 482 * Initial entry point on startup. This gets called before main() is 483 * entered. 484 * It should be responsible for setting up everything that must be 485 * in place when main is called. 486 * This includes 487 * Taking a copy of the boot configuration structure. 488 * Initialising the physical console so characters can be printed. 489 * Setting up page tables for the kernel 490 * Relocating the kernel to the bottom of physical memory 491 */ 492 u_int 493 initarm(void *arg) 494 { 495 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 496 #ifdef DIAGNOSTIC 497 extern vsize_t xscale_minidata_clean_size; /* used in KASSERT */ 498 #endif 499 extern vaddr_t xscale_cache_clean_addr; 500 #endif 501 extern uint32_t *u_boot_args[]; 502 extern uint32_t ram_size; 503 enum { r0 = 0, r1 = 1, r2 = 2, r3 = 3 }; /* args from u-boot */ 504 int loop; 505 int loop1; 506 u_int l1pagetable; 507 paddr_t memstart; 508 psize_t memsize; 509 510 /* 511 * U-Boot doesn't use the virtual memory. 512 * 513 * Gumstix (basix, connex, verdex, verdex-pro): 514 * Physical Address Range Description 515 * ----------------------- ---------------------------------- 516 * 0x00000000 - 0x00ffffff flash Memory (16MB or 4MB) 517 * 0x40000000 - 0x480fffff Processor Registers 518 * 0xa0000000 - 0xa3ffffff SDRAM Bank 0 (64MB or 128MB) 519 * 520 * Overo: 521 * Physical Address Range Description 522 * ----------------------- ---------------------------------- 523 */ 524 525 /* 526 * Heads up ... Setup the CPU / MMU / TLB functions 527 */ 528 if (set_cpufuncs()) 529 panic("cpu not recognized!"); 530 531 /* map some peripheral registers at static I/O area */ 532 pmap_devmap_bootstrap((vaddr_t)read_ttb(), gumstix_devmap); 533 534 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 535 /* start 32.768kHz OSC */ 536 ioreg_write(GUMSTIX_CLKMAN_VBASE + CLKMAN_OSCC, OSCC_OON); 537 538 /* Get ready for splfoo() */ 539 pxa2x0_intr_bootstrap(GUMSTIX_INTCTL_VBASE); 540 541 /* setup GPIO for {FF,ST,HW}UART. */ 542 pxa2x0_gpio_bootstrap(GUMSTIX_GPIO_VBASE); 543 544 pxa2x0_clkman_bootstrap(GUMSTIX_CLKMAN_VBASE); 545 #elif defined(CPU_CORTEXA8) 546 { 547 void cortexa8_pmc_ccnt_init(void); 548 549 cortexa8_pmc_ccnt_init(); 550 } 551 #endif 552 553 cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT); 554 555 /* configure GPIOs. */ 556 gxio_config_pin(); 557 558 559 #ifndef GUMSTIX_NETBSD_ARGS_CONSOLE 560 consinit(); 561 #endif 562 #ifdef KGDB 563 kgdb_port_init(); 564 #endif 565 566 /* 567 * Examine the boot args string for options we need to know about 568 * now. 569 */ 570 #if defined(GUMSTIX) 571 #define SDRAM_START 0xa0000000UL 572 #elif defined(OVERO) 573 #define SDRAM_START 0x80000000UL 574 #endif 575 if (((uint32_t)u_boot_args[r0] & 0xf0000000) != SDRAM_START) 576 /* Maybe r0 is 'argc'. We are booted by command 'go'. */ 577 process_kernel_args((int)u_boot_args[r0], 578 (char **)u_boot_args[r1]); 579 else 580 /* 581 * Maybe r3 is 'boot args string' of 'bootm'. This string is 582 * linely. 583 */ 584 process_kernel_args_liner((char *)u_boot_args[r3]); 585 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 586 consinit(); 587 #endif 588 589 /* Talk to the user */ 590 #define BDSTR(s) _BDSTR(s) 591 #define _BDSTR(s) #s 592 printf("\nNetBSD/evbarm (" BDSTR(EVBARM_BOARDTYPE) ") booting ...\n"); 593 594 /* Read system serial */ 595 #if defined(GUMSTIX) 596 read_system_serial(); 597 #endif 598 599 memstart = SDRAM_START; 600 memsize = ram_size; 601 602 #ifdef VERBOSE_INIT_ARM 603 printf("initarm: Configuring system ...\n"); 604 #endif 605 606 /* Fake bootconfig structure for the benefit of pmap.c */ 607 /* XXX must make the memory description h/w independent */ 608 bootconfig.dramblocks = 1; 609 bootconfig.dram[0].address = memstart; 610 bootconfig.dram[0].pages = memsize / PAGE_SIZE; 611 612 /* 613 * Set up the variables that define the availablilty of 614 * physical memory. For now, we're going to set 615 * physical_freestart to 0xa0200000 (where the kernel 616 * was loaded), and allocate the memory we need downwards. 617 * If we get too close to the L1 table that we set up, we 618 * will panic. We will update physical_freestart and 619 * physical_freeend later to reflect what pmap_bootstrap() 620 * wants to see. 621 * 622 * XXX pmap_bootstrap() needs an enema. 623 */ 624 physical_start = bootconfig.dram[0].address; 625 physical_end = physical_start + memsize; 626 627 #if defined(GUMSTIX) 628 physical_freestart = 0xa0009000UL; 629 physical_freeend = 0xa0200000UL; 630 #elif defined(OVERO) 631 physical_freestart = 0x80009000UL; 632 physical_freeend = 0x80200000UL; 633 #endif 634 635 physmem = (physical_end - physical_start) / PAGE_SIZE; 636 637 #ifdef VERBOSE_INIT_ARM 638 /* Tell the user about the memory */ 639 printf("physmemory: %d pages at 0x%08lx -> 0x%08lx\n", physmem, 640 physical_start, physical_end - 1); 641 #endif 642 643 /* 644 * Okay, the kernel starts 2MB in from the bottom of physical 645 * memory. We are going to allocate our bootstrap pages downwards 646 * from there. 647 * 648 * We need to allocate some fixed page tables to get the kernel 649 * going. We allocate one page directory and a number of page 650 * tables and store the physical addresses in the kernel_pt_table 651 * array. 652 * 653 * The kernel page directory must be on a 16K boundary. The page 654 * tables must be on 4K bounaries. What we do is allocate the 655 * page directory on the first 16K boundary that we encounter, and 656 * the page tables on 4K boundaries otherwise. Since we allocate 657 * at least 3 L2 page tables, we are guaranteed to encounter at 658 * least one 16K aligned region. 659 */ 660 661 #ifdef VERBOSE_INIT_ARM 662 printf("Allocating page tables\n"); 663 #endif 664 665 free_pages = (physical_freeend - physical_freestart) / PAGE_SIZE; 666 667 #ifdef VERBOSE_INIT_ARM 668 printf("freestart = 0x%08lx, free_pages = %d (0x%08x)\n", 669 physical_freestart, free_pages, free_pages); 670 #endif 671 672 /* Define a macro to simplify memory allocation */ 673 #define valloc_pages(var, np) \ 674 alloc_pages((var).pv_pa, (np)); \ 675 (var).pv_va = KERNEL_BASE + (var).pv_pa - physical_start; 676 677 #define alloc_pages(var, np) \ 678 physical_freeend -= ((np) * PAGE_SIZE); \ 679 if (physical_freeend < physical_freestart) \ 680 panic("initarm: out of memory"); \ 681 (var) = physical_freeend; \ 682 free_pages -= (np); \ 683 memset((char *)(var), 0, ((np) * PAGE_SIZE)); 684 685 loop1 = 0; 686 for (loop = 0; loop <= NUM_KERNEL_PTS; ++loop) { 687 /* Are we 16KB aligned for an L1 ? */ 688 if ((physical_freeend & (L1_TABLE_SIZE - 1)) == 0 && 689 kernel_l1pt.pv_pa == 0) { 690 valloc_pages(kernel_l1pt, L1_TABLE_SIZE / PAGE_SIZE); 691 } else { 692 valloc_pages(kernel_pt_table[loop1], 693 L2_TABLE_SIZE / PAGE_SIZE); 694 ++loop1; 695 } 696 } 697 698 /* This should never be able to happen but better confirm that. */ 699 if (!kernel_l1pt.pv_pa || (kernel_l1pt.pv_pa & (L1_TABLE_SIZE-1)) != 0) 700 panic("initarm: Failed to align the kernel page directory"); 701 702 /* 703 * Allocate a page for the system page mapped to V0x00000000 704 * This page will just contain the system vectors and can be 705 * shared by all processes. 706 */ 707 alloc_pages(systempage.pv_pa, 1); 708 #if defined(CPU_CORTEXA8) 709 systempage.pv_va = ARM_VECTORS_HIGH; 710 #endif 711 712 /* Allocate stacks for all modes */ 713 valloc_pages(irqstack, IRQ_STACK_SIZE); 714 valloc_pages(abtstack, ABT_STACK_SIZE); 715 valloc_pages(undstack, UND_STACK_SIZE); 716 valloc_pages(kernelstack, UPAGES); 717 718 /* Allocate enough pages for cleaning the Mini-Data cache. */ 719 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 720 KASSERT(xscale_minidata_clean_size <= PAGE_SIZE); 721 #endif 722 valloc_pages(minidataclean, 1); 723 724 #ifdef VERBOSE_INIT_ARM 725 printf("IRQ stack: p0x%08lx v0x%08lx\n", irqstack.pv_pa, 726 irqstack.pv_va); 727 printf("ABT stack: p0x%08lx v0x%08lx\n", abtstack.pv_pa, 728 abtstack.pv_va); 729 printf("UND stack: p0x%08lx v0x%08lx\n", undstack.pv_pa, 730 undstack.pv_va); 731 printf("SVC stack: p0x%08lx v0x%08lx\n", kernelstack.pv_pa, 732 kernelstack.pv_va); 733 #endif 734 735 /* 736 * XXX Defer this to later so that we can reclaim the memory 737 * XXX used by the RedBoot page tables. 738 */ 739 alloc_pages(msgbufphys, round_page(MSGBUFSIZE) / PAGE_SIZE); 740 741 /* 742 * Ok we have allocated physical pages for the primary kernel 743 * page tables 744 */ 745 746 #ifdef VERBOSE_INIT_ARM 747 printf("Creating L1 page table at 0x%08lx\n", kernel_l1pt.pv_pa); 748 #endif 749 750 /* 751 * Now we start construction of the L1 page table 752 * We start by mapping the L2 page tables into the L1. 753 * This means that we can replace L1 mappings later on if necessary 754 */ 755 l1pagetable = kernel_l1pt.pv_va; 756 757 /* Map the L2 pages tables in the L1 page table */ 758 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 759 pmap_link_l2pt(l1pagetable, 0x00000000, 760 &kernel_pt_table[KERNEL_PT_SYS]); 761 #elif defined(CPU_CORTEXA8) 762 pmap_link_l2pt(l1pagetable, ARM_VECTORS_HIGH & ~(0x00400000 - 1), 763 &kernel_pt_table[KERNEL_PT_SYS]); 764 #endif 765 for (loop = 0; loop < KERNEL_PT_KERNEL_NUM; loop++) 766 pmap_link_l2pt(l1pagetable, KERNEL_BASE + loop * 0x00400000, 767 &kernel_pt_table[KERNEL_PT_KERNEL + loop]); 768 for (loop = 0; loop < KERNEL_PT_VMDATA_NUM; loop++) 769 pmap_link_l2pt(l1pagetable, KERNEL_VM_BASE + loop * 0x00400000, 770 &kernel_pt_table[KERNEL_PT_VMDATA + loop]); 771 772 /* update the top of the kernel VM */ 773 pmap_curmaxkvaddr = 774 KERNEL_VM_BASE + (KERNEL_PT_VMDATA_NUM * 0x00400000); 775 776 #ifdef VERBOSE_INIT_ARM 777 printf("Mapping kernel\n"); 778 #endif 779 780 /* Now we fill in the L2 pagetable for the kernel static code/data */ 781 { 782 extern char etext[], _end[]; 783 size_t textsize = (uintptr_t) etext - KERNEL_TEXT_BASE; 784 size_t totalsize = (uintptr_t) _end - KERNEL_TEXT_BASE; 785 u_int logical; 786 787 textsize = (textsize + PGOFSET) & ~PGOFSET; 788 totalsize = (totalsize + PGOFSET) & ~PGOFSET; 789 790 logical = 0x00200000; /* offset of kernel in RAM */ 791 792 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 793 physical_start + logical, textsize, 794 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 795 logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, 796 physical_start + logical, totalsize - textsize, 797 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 798 } 799 800 #ifdef VERBOSE_INIT_ARM 801 printf("Constructing L2 page tables\n"); 802 #endif 803 804 /* Map the stack pages */ 805 pmap_map_chunk(l1pagetable, irqstack.pv_va, irqstack.pv_pa, 806 IRQ_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 807 pmap_map_chunk(l1pagetable, abtstack.pv_va, abtstack.pv_pa, 808 ABT_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 809 pmap_map_chunk(l1pagetable, undstack.pv_va, undstack.pv_pa, 810 UND_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 811 pmap_map_chunk(l1pagetable, kernelstack.pv_va, kernelstack.pv_pa, 812 UPAGES * PAGE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_CACHE); 813 814 pmap_map_chunk(l1pagetable, kernel_l1pt.pv_va, kernel_l1pt.pv_pa, 815 L1_TABLE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_PAGETABLE); 816 817 for (loop = 0; loop < NUM_KERNEL_PTS; ++loop) { 818 pmap_map_chunk(l1pagetable, kernel_pt_table[loop].pv_va, 819 kernel_pt_table[loop].pv_pa, L2_TABLE_SIZE, 820 VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE); 821 } 822 823 /* Map the Mini-Data cache clean area. */ 824 #if defined(GUMSTIX) 825 xscale_setup_minidata(l1pagetable, minidataclean.pv_va, 826 minidataclean.pv_pa); 827 #endif 828 829 /* Map the vector page. */ 830 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 831 #if 1 832 /* MULTI-ICE requires that page 0 is NC/NB so that it can download the 833 * cache-clean code there. */ 834 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 835 VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE); 836 #else 837 pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa, 838 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 839 #endif 840 #elif defined(CPU_CORTEXA8) 841 pmap_map_entry(l1pagetable, ARM_VECTORS_HIGH, systempage.pv_pa, 842 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 843 #endif 844 845 /* 846 * map integrated peripherals at same address in l1pagetable 847 * so that we can continue to use console. 848 */ 849 pmap_devmap_bootstrap(l1pagetable, gumstix_devmap); 850 851 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 852 /* 853 * Give the XScale global cache clean code an appropriately 854 * sized chunk of unmapped VA space starting at 0xff000000 855 * (our device mappings end before this address). 856 */ 857 xscale_cache_clean_addr = 0xff000000U; 858 #endif 859 860 /* 861 * Now we have the real page tables in place so we can switch to them. 862 * Once this is done we will be running with the REAL kernel page 863 * tables. 864 */ 865 866 /* 867 * Update the physical_freestart/physical_freeend/free_pages 868 * variables. 869 */ 870 { 871 extern char _end[]; 872 873 physical_freestart = physical_start + 874 (((((uintptr_t) _end) + PGOFSET) & ~PGOFSET) - 875 KERNEL_BASE); 876 physical_freeend = physical_end; 877 free_pages = 878 (physical_freeend - physical_freestart) / PAGE_SIZE; 879 } 880 881 /* Switch tables */ 882 #ifdef VERBOSE_INIT_ARM 883 printf("freestart = 0x%08lx, free_pages = %d (0x%x)\n", 884 physical_freestart, free_pages, free_pages); 885 printf("switching to new L1 page table @%#lx...", kernel_l1pt.pv_pa); 886 #endif 887 888 cpu_setttb(kernel_l1pt.pv_pa); 889 cpu_tlb_flushID(); 890 cpu_domains(DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)); 891 892 /* 893 * Moved from cpu_startup() as data_abort_handler() references 894 * this during uvm init 895 */ 896 uvm_lwp_setuarea(&lwp0, kernelstack.pv_va); 897 898 #ifdef VERBOSE_INIT_ARM 899 printf("bootstrap done.\n"); 900 #endif 901 902 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 903 arm32_vector_init(ARM_VECTORS_LOW, ARM_VEC_ALL); 904 #elif defined(CPU_CORTEXA8) 905 arm32_vector_init(ARM_VECTORS_HIGH, ARM_VEC_ALL); 906 #endif 907 908 /* 909 * Pages were allocated during the secondary bootstrap for the 910 * stacks for different CPU modes. 911 * We must now set the r13 registers in the different CPU modes to 912 * point to these stacks. 913 * Since the ARM stacks use STMFD etc. we must set r13 to the top end 914 * of the stack memory. 915 */ 916 #ifdef VERBOSE_INIT_ARM 917 printf("init subsystems: stacks "); 918 #endif 919 920 set_stackptr(PSR_IRQ32_MODE, 921 irqstack.pv_va + IRQ_STACK_SIZE * PAGE_SIZE); 922 set_stackptr(PSR_ABT32_MODE, 923 abtstack.pv_va + ABT_STACK_SIZE * PAGE_SIZE); 924 set_stackptr(PSR_UND32_MODE, 925 undstack.pv_va + UND_STACK_SIZE * PAGE_SIZE); 926 927 /* 928 * Well we should set a data abort handler. 929 * Once things get going this will change as we will need a proper 930 * handler. 931 * Until then we will use a handler that just panics but tells us 932 * why. 933 * Initialisation of the vectors will just panic on a data abort. 934 * This just fills in a slighly better one. 935 */ 936 #ifdef VERBOSE_INIT_ARM 937 printf("vectors "); 938 #endif 939 data_abort_handler_address = (u_int)data_abort_handler; 940 prefetch_abort_handler_address = (u_int)prefetch_abort_handler; 941 undefined_handler_address = (u_int)undefinedinstruction_bounce; 942 943 /* Initialise the undefined instruction handlers */ 944 #ifdef VERBOSE_INIT_ARM 945 printf("undefined "); 946 #endif 947 undefined_init(); 948 949 /* Load memory into UVM. */ 950 #ifdef VERBOSE_INIT_ARM 951 printf("page "); 952 #endif 953 uvm_setpagesize(); /* initialize PAGE_SIZE-dependent variables */ 954 uvm_page_physload(atop(physical_freestart), atop(physical_freeend), 955 atop(physical_freestart), atop(physical_freeend), 956 VM_FREELIST_DEFAULT); 957 958 /* Boot strap pmap telling it where the kernel page table is */ 959 #ifdef VERBOSE_INIT_ARM 960 printf("pmap "); 961 #endif 962 pmap_bootstrap(KERNEL_VM_BASE, KERNEL_VM_BASE + KERNEL_VM_SIZE); 963 964 #ifdef __HAVE_MEMORY_DISK__ 965 md_root_setconf(memory_disk, sizeof memory_disk); 966 #endif 967 968 #ifdef BOOTHOWTO 969 boothowto |= BOOTHOWTO; 970 #endif 971 972 #ifdef KGDB 973 if (boothowto & RB_KDB) { 974 kgdb_debug_init = 1; 975 kgdb_connect(1); 976 } 977 #endif 978 979 #if NKSYMS || defined(DDB) || defined(MODULAR) 980 /* Firmware doesn't load symbols. */ 981 ddb_init(0, NULL, NULL); 982 #endif 983 984 #ifdef DDB 985 db_machine_init(); 986 if (boothowto & RB_KDB) 987 Debugger(); 988 #endif 989 990 /* We have our own device_register() */ 991 evbarm_device_register = gumstix_device_register; 992 993 /* We return the new stack pointer address */ 994 return(kernelstack.pv_va + USPACE_SVC_STACK_TOP); 995 } 996 997 #if defined(GUMSTIX) 998 static void 999 read_system_serial(void) 1000 { 1001 #define GUMSTIX_SYSTEM_SERIAL_ADDR 0 1002 #define GUMSTIX_SYSTEM_SERIAL_SIZE 8 1003 #define FLASH_OFFSET_INTEL_PROTECTION 0x81 1004 #define FLASH_OFFSET_USER_PROTECTION 0x85 1005 #define FLASH_CMD_READ_ID 0x90 1006 #define FLASH_CMD_RESET 0xff 1007 int i; 1008 char system_serial[GUMSTIX_SYSTEM_SERIAL_SIZE], *src; 1009 char x; 1010 1011 src = (char *)(FLASH_OFFSET_USER_PROTECTION * 2 /*word*/); 1012 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1013 memcpy(system_serial, 1014 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1015 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1016 1017 for (i = 1, x = system_serial[0]; i < sizeof (system_serial); i++) 1018 x &= system_serial[i]; 1019 if (x == 0xff) { 1020 src = (char *)(FLASH_OFFSET_INTEL_PROTECTION * 2 /*word*/); 1021 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 1022 memcpy(system_serial, 1023 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 1024 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 1025 1026 /* 1027 * XXXX: Don't need ??? 1028 * gumstix_serial_hash(system_serial); 1029 */ 1030 } 1031 system_serial_high = system_serial[0] << 24 | system_serial[1] << 16 | 1032 system_serial[2] << 8 | system_serial[3]; 1033 system_serial_low = system_serial[4] << 24 | system_serial[5] << 16 | 1034 system_serial[6] << 8 | system_serial[7]; 1035 1036 printf("system serial: 0x"); 1037 for (i = 0; i < sizeof (system_serial); i++) 1038 printf("%02x", system_serial[i]); 1039 printf("\n"); 1040 } 1041 #endif 1042 1043 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1044 static const char busheader_name[] = "busheader="; 1045 #endif 1046 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1047 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1048 static const char expansion_name[] = "expansion="; 1049 #endif 1050 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1051 static const char console_name[] = "console="; 1052 #endif 1053 static void 1054 process_kernel_args(int argc, char *argv[]) 1055 { 1056 int gxio_configured = 0, i, j; 1057 1058 boothowto = 0; 1059 1060 for (i = 1, j = 0; i < argc; i++) { 1061 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 1062 if (!strncmp(argv[i], busheader_name, strlen(busheader_name))) { 1063 /* Configure for GPIOs of busheader side */ 1064 gxio_config_expansion(argv[i] + strlen(busheader_name)); 1065 gxio_configured = 1; 1066 continue; 1067 } 1068 #endif 1069 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 1070 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 1071 if (!strncmp(argv[i], expansion_name, strlen(expansion_name))) { 1072 /* Configure expansion */ 1073 gxio_config_expansion(argv[i] + strlen(expansion_name)); 1074 gxio_configured = 1; 1075 continue; 1076 } 1077 #endif 1078 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1079 if (!strncmp(argv[i], console_name, strlen(console_name))) { 1080 strncpy(console, argv[i] + strlen(console_name), 1081 sizeof(console)); 1082 consinit(); 1083 } 1084 #endif 1085 if (j == bootargs_len) { 1086 *(bootargs + j) = '\0'; 1087 continue; 1088 } 1089 if (j != 0) 1090 *(bootargs + j++) = ' '; 1091 strncpy(bootargs + j, argv[i], bootargs_len - j); 1092 bootargs[bootargs_len] = '\0'; 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 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 1195 /* Maybe passed Linux's bootargs 'console=ttyS?,<speed>...' */ 1196 if (strncmp(console, "ttyS", 4) == 0 && console[5] == ',') { 1197 int i; 1198 1199 comcnspeed = 0; 1200 for (i = 6; i < strlen(console) && isdigit(console[i]); i++) 1201 comcnspeed = comcnspeed * 10 + (console[i] - '0'); 1202 } 1203 #endif 1204 1205 #if defined(GUMSTIX) 1206 1207 #ifdef FFUARTCONSOLE 1208 #ifdef KGDB 1209 if (strcmp(kgdb_devname, "ffuart") == 0){ 1210 /* port is reserved for kgdb */ 1211 } else 1212 #endif 1213 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1214 if (console[0] == '\0' || strcasecmp(console, "ffuart") == 0 || 1215 strncmp(console, "ttyS0,", 6) == 0) 1216 #endif 1217 { 1218 int rv; 1219 1220 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_FFUART_BASE, 1221 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1222 if (rv == 0) { 1223 pxa2x0_clkman_config(CKEN_FFUART, 1); 1224 return; 1225 } 1226 } 1227 #endif /* FFUARTCONSOLE */ 1228 1229 #ifdef STUARTCONSOLE 1230 #ifdef KGDB 1231 if (strcmp(kgdb_devname, "stuart") == 0) { 1232 /* port is reserved for kgdb */ 1233 } else 1234 #endif 1235 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1236 if (console[0] == '\0' || strcasecmp(console, "stuart") == 0) 1237 #endif 1238 { 1239 int rv; 1240 1241 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_STUART_BASE, 1242 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1243 if (rv == 0) { 1244 pxa2x0_clkman_config(CKEN_STUART, 1); 1245 return; 1246 } 1247 } 1248 #endif /* STUARTCONSOLE */ 1249 1250 #ifdef BTUARTCONSOLE 1251 #ifdef KGDB 1252 if (strcmp(kgdb_devname, "btuart") == 0) { 1253 /* port is reserved for kgdb */ 1254 } else 1255 #endif 1256 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1257 if (console[0] == '\0' || strcasecmp(console, "btuart") == 0) 1258 #endif 1259 { 1260 int rv; 1261 1262 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_BTUART_BASE, 1263 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1264 if (rv == 0) { 1265 pxa2x0_clkman_config(CKEN_BTUART, 1); 1266 return; 1267 } 1268 } 1269 #endif /* BTUARTCONSOLE */ 1270 1271 #ifdef HWUARTCONSOLE 1272 #ifdef KGDB 1273 if (strcmp(kgdb_devname, "hwuart") == 0) { 1274 /* port is reserved for kgdb */ 1275 } else 1276 #endif 1277 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1278 if (console[0] == '\0' || strcasecmp(console, "hwuart") == 0) 1279 #endif 1280 { 1281 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_HWUART_BASE, 1282 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 1283 if (rv == 0) { 1284 pxa2x0_clkman_config(CKEN_HWUART, 1); 1285 return; 1286 } 1287 } 1288 #endif /* HWUARTCONSOLE */ 1289 1290 #elif defined(OVERO) 1291 1292 if (comcnattach(&omap_a4x_bs_tag, 0x49020000, comcnspeed, 1293 OMAP_COM_FREQ, COM_TYPE_NORMAL, comcnmode) == 0) 1294 return; 1295 1296 #endif /* GUMSTIX or OVERO */ 1297 1298 #endif /* NCOM */ 1299 1300 #if NLCD > 0 1301 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 1302 if (console[0] == '\0' || strcasecmp(console, "lcd") == 0) 1303 #endif 1304 { 1305 gxlcd_cnattach(); 1306 } 1307 #endif 1308 } 1309 1310 #ifdef KGDB 1311 static void 1312 kgdb_port_init(void) 1313 { 1314 #if (NCOM > 0) && defined(COM_PXA2X0) 1315 paddr_t paddr = 0; 1316 int cken = 0; 1317 1318 if (0 == strcmp(kgdb_devname, "ffuart")) { 1319 paddr = PXA2X0_FFUART_BASE; 1320 cken = CKEN_FFUART; 1321 } else if (0 == strcmp(kgdb_devname, "stuart")) { 1322 paddr = PXA2X0_STUART_BASE; 1323 cken = CKEN_STUART; 1324 } else if (0 == strcmp(kgdb_devname, "btuart")) { 1325 paddr = PXA2X0_BTUART_BASE; 1326 cken = CKEN_BTUART; 1327 } else if (0 == strcmp(kgdb_devname, "hwuart")) { 1328 paddr = PXA2X0_HWUART_BASE; 1329 cken = CKEN_HWUART; 1330 } 1331 1332 if (paddr && 1333 0 == com_kgdb_attach(&pxa2x0_a4x_bs_tag, paddr, 1334 kgdb_devrate, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comkgdbmode)) { 1335 1336 pxa2x0_clkman_config(cken, 1); 1337 } 1338 1339 #endif 1340 } 1341 #endif 1342 1343 static void 1344 gumstix_device_register(device_t dev, void *aux) 1345 { 1346 1347 if (device_is_a(dev, "ohci")) { 1348 if (prop_dictionary_set_bool(device_properties(dev), 1349 "Ganged-power-mask-on-port1", 1) == false) { 1350 printf("WARNING: unable to set power-mask for port1" 1351 " property for %s\n", dev->dv_xname); 1352 } 1353 if (prop_dictionary_set_bool(device_properties(dev), 1354 "Ganged-power-mask-on-port2", 1) == false) { 1355 printf("WARNING: unable to set power-mask for port2" 1356 " property for %s\n", dev->dv_xname); 1357 } 1358 if (prop_dictionary_set_bool(device_properties(dev), 1359 "Ganged-power-mask-on-port3", 1) == false) { 1360 printf("WARNING: unable to set power-mask for port3" 1361 " property for %s\n", dev->dv_xname); 1362 } 1363 } 1364 } 1365
Indexes created Thu Oct 30 03:10:01 GMT 2025