gumstix_machdep.c revision 1.50.8.1
1 /* $NetBSD: gumstix_machdep.c,v 1.50.8.1 2017/03/13 07:41:26 skrll 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_kgdb.h" 148 #include "opt_pmap_debug.h" 149 #include "opt_com.h" 150 151 #include <sys/param.h> 152 #include <sys/conf.h> 153 #include <sys/device.h> 154 #include <sys/exec.h> 155 #include <sys/kernel.h> 156 #include <sys/proc.h> 157 #include <sys/reboot.h> 158 #include <sys/systm.h> 159 #include <sys/termios.h> 160 #include <sys/bus.h> 161 #include <sys/cpu.h> 162 163 #include <uvm/uvm_extern.h> 164 165 #include <machine/autoconf.h> 166 #include <machine/bootconfig.h> 167 #include <arm/locore.h> 168 169 #include <arm/arm32/machdep.h> 170 #ifdef OVERO 171 #include <arm/omap/omap2_gpmcreg.h> 172 #include <arm/omap/omap2_prcm.h> 173 #include <arm/omap/omap2_reg.h> 174 #include <arm/omap/omap_var.h> 175 #include <arm/omap/omap_com.h> 176 #endif 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 <dev/cons.h> 184 185 #ifdef KGDB 186 #include <sys/kgdb.h> 187 #endif 188 189 /* 190 * The range 0xc1000000 - 0xfd000000 is available for kernel VM space 191 * Core-logic registers and I/O mappings occupy 192 * 193 * 0xfd000000 - 0xfd800000 on gumstix 194 * 0xc0000000 - 0xc0400000 on overo, duovero and pepper 195 */ 196 #ifndef KERNEL_VM_BASE 197 #define KERNEL_VM_BASE 0xc8000000 198 #endif 199 #define KERNEL_VM_SIZE 0x35000000 200 201 BootConfig bootconfig; /* Boot config storage */ 202 static char bootargs[MAX_BOOT_STRING]; 203 const size_t bootargs_len = sizeof(bootargs) - 1; /* without nul */ 204 char *boot_args = NULL; 205 206 uint32_t system_serial_high; 207 uint32_t system_serial_low; 208 209 /* Prototypes */ 210 #if defined(GUMSTIX) 211 static void read_system_serial(void); 212 #elif defined(OVERO) 213 static void overo_reset(void); 214 static void find_cpu_clock(void); 215 #endif 216 static void process_kernel_args(int, char *[]); 217 static void process_kernel_args_liner(char *); 218 #ifdef KGDB 219 static void kgdb_port_init(void); 220 #endif 221 static void gumstix_device_register(device_t, void *); 222 223 bs_protos(bs_notimpl); 224 225 #include "com.h" 226 #if NCOM > 0 227 #include <dev/ic/comreg.h> 228 #include <dev/ic/comvar.h> 229 #endif 230 231 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 232 #include "lcd.h" 233 #endif 234 235 #ifndef CONSPEED 236 #define CONSPEED B115200 /* It's a setting of the default of u-boot */ 237 #endif 238 #ifndef CONMODE 239 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 240 #endif 241 242 int comcnspeed = CONSPEED; 243 int comcnmode = CONMODE; 244 245 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 246 static char console[16]; 247 #endif 248 249 extern void gxio_config_pin(void); 250 extern void gxio_config_expansion(char *); 251 252 253 static inline pd_entry_t * 254 read_ttb(void) 255 { 256 long ttb; 257 258 __asm volatile("mrc p15, 0, %0, c2, c0, 0" : "=r" (ttb)); 259 260 return (pd_entry_t *)(ttb & ~((1<<14)-1)); 261 } 262 263 /* 264 * Static device mappings. These peripheral registers are mapped at 265 * fixed virtual addresses very early in initarm() so that we can use 266 * them while booting the kernel, and stay at the same address 267 * throughout whole kernel's life time. 268 * 269 * We use this table twice; once with bootstrap page table, and once 270 * with kernel's page table which we build up in initarm(). 271 * 272 * Since we map these registers into the bootstrap page table using 273 * pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map 274 * registers segment-aligned and segment-rounded in order to avoid 275 * using the 2nd page tables. 276 */ 277 278 #define _A(a) ((a) & ~L1_S_OFFSET) 279 #define _S(s) (((s) + L1_S_SIZE - 1) & ~(L1_S_SIZE-1)) 280 281 static const struct pmap_devmap gumstix_devmap[] = { 282 #if defined(GUMSTIX) 283 { 284 GUMSTIX_GPIO_VBASE, 285 _A(PXA2X0_GPIO_BASE), 286 _S(PXA250_GPIO_SIZE), 287 VM_PROT_READ | VM_PROT_WRITE, 288 PTE_NOCACHE, 289 }, 290 { 291 GUMSTIX_CLKMAN_VBASE, 292 _A(PXA2X0_CLKMAN_BASE), 293 _S(PXA2X0_CLKMAN_SIZE), 294 VM_PROT_READ | VM_PROT_WRITE, 295 PTE_NOCACHE, 296 }, 297 { 298 GUMSTIX_INTCTL_VBASE, 299 _A(PXA2X0_INTCTL_BASE), 300 _S(PXA2X0_INTCTL_SIZE), 301 VM_PROT_READ | VM_PROT_WRITE, 302 PTE_NOCACHE, 303 }, 304 { 305 GUMSTIX_FFUART_VBASE, 306 _A(PXA2X0_FFUART_BASE), 307 _S(4 * COM_NPORTS), 308 VM_PROT_READ | VM_PROT_WRITE, 309 PTE_NOCACHE, 310 }, 311 { 312 GUMSTIX_STUART_VBASE, 313 _A(PXA2X0_STUART_BASE), 314 _S(4 * COM_NPORTS), 315 VM_PROT_READ | VM_PROT_WRITE, 316 PTE_NOCACHE, 317 }, 318 { 319 GUMSTIX_BTUART_VBASE, 320 _A(PXA2X0_BTUART_BASE), 321 _S(4 * COM_NPORTS), 322 VM_PROT_READ | VM_PROT_WRITE, 323 PTE_NOCACHE, 324 }, 325 { 326 GUMSTIX_HWUART_VBASE, 327 _A(PXA2X0_HWUART_BASE), 328 _S(4 * COM_NPORTS), 329 VM_PROT_READ | VM_PROT_WRITE, 330 PTE_NOCACHE, 331 }, 332 { 333 GUMSTIX_LCDC_VBASE, 334 _A(PXA2X0_LCDC_BASE), 335 _S(4 * COM_NPORTS), 336 VM_PROT_READ | VM_PROT_WRITE, 337 PTE_NOCACHE, 338 }, 339 #elif defined(OVERO) 340 { 341 OVERO_L4_PERIPHERAL_VBASE, 342 _A(OMAP3530_L4_PERIPHERAL_BASE), 343 _S(OMAP3530_L4_PERIPHERAL_SIZE), 344 VM_PROT_READ | VM_PROT_WRITE, 345 PTE_NOCACHE 346 }, 347 { 348 OVERO_GPMC_VBASE, 349 _A(GPMC_BASE), 350 _S(GPMC_SIZE), 351 VM_PROT_READ | VM_PROT_WRITE, 352 PTE_NOCACHE 353 }, 354 #endif 355 { 0, 0, 0, 0, 0 } 356 }; 357 358 #undef _A 359 #undef _S 360 361 362 /* 363 * u_int initarm(...) 364 * 365 * Initial entry point on startup. This gets called before main() is 366 * entered. 367 * It should be responsible for setting up everything that must be 368 * in place when main is called. 369 * This includes 370 * Taking a copy of the boot configuration structure. 371 * Initialising the physical console so characters can be printed. 372 * Setting up page tables for the kernel 373 * Relocating the kernel to the bottom of physical memory 374 */ 375 u_int 376 initarm(void *arg) 377 { 378 extern char KERNEL_BASE_phys[]; 379 extern uint32_t *u_boot_args[]; 380 extern uint32_t ram_size; 381 enum { r0 = 0, r1 = 1, r2 = 2, r3 = 3 }; /* args from u-boot */ 382 383 /* 384 * We mapped PA == VA in gumstix_start.S. 385 * Also mapped SDRAM to KERNEL_BASE first 64Mbyte only with cachable. 386 * 387 * Gumstix (basix, connex, verdex, verdex-pro): 388 * Physical Address Range Description 389 * ----------------------- ---------------------------------- 390 * 0x00000000 - 0x00ffffff flash Memory (16MB or 4MB) 391 * 0x40000000 - 0x480fffff Processor Registers 392 * 0xa0000000 - 0xa3ffffff SDRAM Bank 0 (64MB or 128MB) 393 * 0xc0000000 - 0xc3ffffff KERNEL_BASE 394 * 395 * Overo: 396 * Physical Address Range Description 397 * ----------------------- ---------------------------------- 398 * 0x80000000 - 0x8fffffff SDRAM Bank 0 (256MB or 512MB) 399 * 0x80000000 - 0x83ffffff KERNEL_BASE 400 */ 401 402 #if defined(GUMSTIX) 403 extern vaddr_t xscale_cache_clean_addr; 404 xscale_cache_clean_addr = 0xff000000U; 405 406 cpu_reset_address = NULL; 407 #elif defined(OVERO) 408 cpu_reset_address = overo_reset; 409 410 find_cpu_clock(); // find our CPU speed. 411 #endif 412 413 /* 414 * Heads up ... Setup the CPU / MMU / TLB functions 415 */ 416 if (set_cpufuncs()) 417 panic("cpu not recognized!"); 418 419 /* map some peripheral registers at static I/O area */ 420 pmap_devmap_bootstrap((vaddr_t)read_ttb(), gumstix_devmap); 421 422 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 423 /* start 32.768kHz OSC */ 424 ioreg_write(GUMSTIX_CLKMAN_VBASE + CLKMAN_OSCC, OSCC_OON); 425 426 /* Get ready for splfoo() */ 427 pxa2x0_intr_bootstrap(GUMSTIX_INTCTL_VBASE); 428 429 /* setup GPIO for {FF,ST,HW}UART. */ 430 pxa2x0_gpio_bootstrap(GUMSTIX_GPIO_VBASE); 431 432 pxa2x0_clkman_bootstrap(GUMSTIX_CLKMAN_VBASE); 433 #elif defined(CPU_CORTEX) 434 cortex_pmc_ccnt_init(); 435 #endif 436 437 cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT); 438 439 /* configure GPIOs. */ 440 gxio_config_pin(); 441 442 443 #ifndef GUMSTIX_NETBSD_ARGS_CONSOLE 444 consinit(); 445 #endif 446 #ifdef KGDB 447 kgdb_port_init(); 448 #endif 449 450 /* 451 * Examine the boot args string for options we need to know about 452 * now. 453 */ 454 #if defined(GUMSTIX) 455 #define SDRAM_START 0xa0000000UL 456 #elif defined(OVERO) 457 #define SDRAM_START 0x80000000UL 458 #endif 459 if (((uint32_t)u_boot_args[r0] & 0xf0000000) != SDRAM_START) 460 /* Maybe r0 is 'argc'. We are booted by command 'go'. */ 461 process_kernel_args((int)u_boot_args[r0], 462 (char **)u_boot_args[r1]); 463 else 464 /* 465 * Maybe r3 is 'boot args string' of 'bootm'. This string is 466 * linely. 467 */ 468 process_kernel_args_liner((char *)u_boot_args[r3]); 469 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 470 consinit(); 471 #endif 472 473 /* Talk to the user */ 474 #define BDSTR(s) _BDSTR(s) 475 #define _BDSTR(s) #s 476 printf("\nNetBSD/evbarm (" BDSTR(EVBARM_BOARDTYPE) ") booting ...\n"); 477 478 /* Read system serial */ 479 #if defined(GUMSTIX) 480 read_system_serial(); 481 #endif 482 483 #ifdef VERBOSE_INIT_ARM 484 printf("initarm: Configuring system ...\n"); 485 #endif 486 487 /* Fake bootconfig structure for the benefit of pmap.c */ 488 /* XXX must make the memory description h/w independent */ 489 bootconfig.dramblocks = 1; 490 bootconfig.dram[0].address = SDRAM_START; 491 bootconfig.dram[0].pages = ram_size / PAGE_SIZE; 492 493 KASSERT(ram_size <= KERNEL_VM_BASE - KERNEL_BASE); 494 495 arm32_bootmem_init(bootconfig.dram[0].address, ram_size, 496 (uintptr_t) KERNEL_BASE_phys); 497 arm32_kernel_vm_init(KERNEL_VM_BASE, 498 #if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270) 499 ARM_VECTORS_LOW, 500 #elif defined(CPU_CORTEXA8) 501 ARM_VECTORS_HIGH, 502 #endif 503 0, gumstix_devmap, true); 504 505 evbarm_device_register = gumstix_device_register; 506 507 return initarm_common(KERNEL_VM_BASE, KERNEL_VM_SIZE, NULL, 0); 508 } 509 510 #if defined(GUMSTIX) 511 static void 512 read_system_serial(void) 513 { 514 #define GUMSTIX_SYSTEM_SERIAL_ADDR 0 515 #define GUMSTIX_SYSTEM_SERIAL_SIZE 8 516 #define FLASH_OFFSET_INTEL_PROTECTION 0x81 517 #define FLASH_OFFSET_USER_PROTECTION 0x85 518 #define FLASH_CMD_READ_ID 0x90 519 #define FLASH_CMD_RESET 0xff 520 int i; 521 char system_serial[GUMSTIX_SYSTEM_SERIAL_SIZE], *src; 522 char x; 523 524 src = (char *)(FLASH_OFFSET_USER_PROTECTION * 2 /*word*/); 525 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 526 memcpy(system_serial, 527 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 528 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 529 530 for (i = 1, x = system_serial[0]; i < sizeof (system_serial); i++) 531 x &= system_serial[i]; 532 if (x == 0xff) { 533 src = (char *)(FLASH_OFFSET_INTEL_PROTECTION * 2 /*word*/); 534 *(volatile uint16_t *)0 = FLASH_CMD_READ_ID; 535 memcpy(system_serial, 536 src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial)); 537 *(volatile uint16_t *)0 = FLASH_CMD_RESET; 538 539 /* 540 * XXXX: Don't need ??? 541 * gumstix_serial_hash(system_serial); 542 */ 543 } 544 system_serial_high = system_serial[0] << 24 | system_serial[1] << 16 | 545 system_serial[2] << 8 | system_serial[3]; 546 system_serial_low = system_serial[4] << 24 | system_serial[5] << 16 | 547 system_serial[6] << 8 | system_serial[7]; 548 549 printf("system serial: 0x"); 550 for (i = 0; i < sizeof (system_serial); i++) 551 printf("%02x", system_serial[i]); 552 printf("\n"); 553 } 554 555 #elif defined(OVERO) 556 557 static void 558 overo_reset(void) 559 { 560 561 #if NPRCM > 0 562 prcm_cold_reset(); 563 #endif 564 } 565 566 static void 567 find_cpu_clock(void) 568 { 569 const vaddr_t prm_base = OMAP2_PRM_BASE; 570 const vaddr_t cm_base = OMAP2_CM_BASE; 571 const uint32_t prm_clksel = 572 *(volatile uint32_t *)(prm_base + PLL_MOD + OMAP3_PRM_CLKSEL); 573 static const uint32_t prm_clksel_freqs[] = OMAP3_PRM_CLKSEL_FREQS; 574 const uint32_t sys_clk = 575 prm_clksel_freqs[__SHIFTOUT(prm_clksel, OMAP3_PRM_CLKSEL_CLKIN)]; 576 const uint32_t dpll1 = 577 *(volatile uint32_t *)(cm_base + OMAP3_CM_CLKSEL1_PLL_MPU); 578 const uint32_t dpll2 = 579 *(volatile uint32_t *)(cm_base + OMAP3_CM_CLKSEL2_PLL_MPU); 580 const uint32_t m = 581 __SHIFTOUT(dpll1, OMAP3_CM_CLKSEL1_PLL_MPU_DPLL_MULT); 582 const uint32_t n = __SHIFTOUT(dpll1, OMAP3_CM_CLKSEL1_PLL_MPU_DPLL_DIV); 583 const uint32_t m2 = 584 __SHIFTOUT(dpll2, OMAP3_CM_CLKSEL2_PLL_MPU_DPLL_CLKOUT_DIV); 585 586 /* 587 * MPU_CLK supplies ARM_FCLK which is twice the CPU frequency. 588 */ 589 curcpu()->ci_data.cpu_cc_freq = 590 ((sys_clk * m) / ((n + 1) * m2 * 2)) * OMAP3_PRM_CLKSEL_MULT; 591 omap_sys_clk = sys_clk * OMAP3_PRM_CLKSEL_MULT; 592 } 593 #endif 594 595 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 596 static const char busheader_name[] = "busheader="; 597 #endif 598 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 599 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 600 static const char expansion_name[] = "expansion="; 601 #endif 602 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 603 static const char console_name[] = "console="; 604 #endif 605 static void 606 process_kernel_args(int argc, char *argv[]) 607 { 608 int gxio_configured = 0, i, j; 609 610 boothowto = 0; 611 612 for (i = 1, j = 0; i < argc; i++) { 613 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 614 if (!strncmp(argv[i], busheader_name, strlen(busheader_name))) { 615 /* Configure for GPIOs of busheader side */ 616 gxio_config_expansion(argv[i] + strlen(busheader_name)); 617 gxio_configured = 1; 618 continue; 619 } 620 #endif 621 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 622 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 623 if (!strncmp(argv[i], expansion_name, strlen(expansion_name))) { 624 /* Configure expansion */ 625 gxio_config_expansion(argv[i] + strlen(expansion_name)); 626 gxio_configured = 1; 627 continue; 628 } 629 #endif 630 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 631 if (!strncmp(argv[i], console_name, strlen(console_name))) { 632 strncpy(console, argv[i] + strlen(console_name), 633 sizeof(console)); 634 consinit(); 635 } 636 #endif 637 if (j == bootargs_len) { 638 *(bootargs + j) = '\0'; 639 continue; 640 } 641 if (j != 0) 642 *(bootargs + j++) = ' '; 643 strncpy(bootargs + j, argv[i], bootargs_len - j); 644 bootargs[bootargs_len] = '\0'; 645 j += strlen(argv[i]); 646 } 647 boot_args = bootargs; 648 649 parse_mi_bootargs(boot_args); 650 651 if (!gxio_configured) 652 gxio_config_expansion(NULL); 653 } 654 655 static void 656 process_kernel_args_liner(char *args) 657 { 658 int i = 0; 659 char *p = NULL; 660 661 boothowto = 0; 662 663 strncpy(bootargs, args, sizeof(bootargs)); 664 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \ 665 defined(GUMSTIX_NETBSD_ARGS_EXPANSION) 666 { 667 char *q; 668 669 if ((p = strstr(bootargs, expansion_name))) 670 q = p + strlen(expansion_name); 671 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER 672 else if ((p = strstr(bootargs, busheader_name))) 673 q = p + strlen(busheader_name); 674 #endif 675 if (p) { 676 char expansion[256], c; 677 678 i = 0; 679 do { 680 c = *(q + i); 681 if (c == ' ') 682 c = '\0'; 683 expansion[i++] = c; 684 } while (c != '\0' && i < sizeof(expansion)); 685 gxio_config_expansion(expansion); 686 strcpy(p, q + i); 687 } 688 } 689 #endif 690 if (p == NULL) 691 gxio_config_expansion(NULL); 692 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 693 p = strstr(bootargs, console_name); 694 if (p != NULL) { 695 char c; 696 697 i = 0; 698 do { 699 c = *(p + strlen(console_name) + i); 700 if (c == ' ') 701 c = '\0'; 702 console[i++] = c; 703 } while (c != '\0' && i < sizeof(console)); 704 consinit(); 705 strcpy(p, p + strlen(console_name) + i); 706 } 707 #endif 708 boot_args = bootargs; 709 710 parse_mi_bootargs(boot_args); 711 } 712 713 #ifdef KGDB 714 #ifndef KGDB_DEVNAME 715 #define KGDB_DEVNAME "ffuart" 716 #endif 717 const char kgdb_devname[] = KGDB_DEVNAME; 718 719 #ifndef KGDB_DEVRATE 720 #define KGDB_DEVRATE CONSPEED 721 #endif 722 int kgdb_devrate = KGDB_DEVRATE; 723 724 #if (NCOM > 0) 725 #ifndef KGDB_DEVMODE 726 #define KGDB_DEVMODE CONMODE 727 #endif 728 int comkgdbmode = KGDB_DEVMODE; 729 #endif /* NCOM */ 730 731 #endif /* KGDB */ 732 733 734 void 735 consinit(void) 736 { 737 static int consinit_called = 0; 738 739 if (consinit_called != 0) 740 return; 741 742 consinit_called = 1; 743 744 #if NCOM > 0 745 746 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE 747 /* Maybe passed Linux's bootargs 'console=ttyS?,<speed>...' */ 748 if (strncmp(console, "ttyS", 4) == 0 && console[5] == ',') { 749 int i; 750 751 comcnspeed = 0; 752 for (i = 6; i < strlen(console) && isdigit(console[i]); i++) 753 comcnspeed = comcnspeed * 10 + (console[i] - '0'); 754 } 755 #endif 756 757 #if defined(GUMSTIX) 758 759 #ifdef FFUARTCONSOLE 760 #ifdef KGDB 761 if (strcmp(kgdb_devname, "ffuart") == 0){ 762 /* port is reserved for kgdb */ 763 } else 764 #endif 765 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 766 if (console[0] == '\0' || strcasecmp(console, "ffuart") == 0 || 767 strncmp(console, "ttyS0,", 6) == 0) 768 #endif 769 { 770 int rv; 771 772 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_FFUART_BASE, 773 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 774 if (rv == 0) { 775 pxa2x0_clkman_config(CKEN_FFUART, 1); 776 return; 777 } 778 } 779 #endif /* FFUARTCONSOLE */ 780 781 #ifdef STUARTCONSOLE 782 #ifdef KGDB 783 if (strcmp(kgdb_devname, "stuart") == 0) { 784 /* port is reserved for kgdb */ 785 } else 786 #endif 787 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 788 if (console[0] == '\0' || strcasecmp(console, "stuart") == 0) 789 #endif 790 { 791 int rv; 792 793 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_STUART_BASE, 794 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 795 if (rv == 0) { 796 pxa2x0_clkman_config(CKEN_STUART, 1); 797 return; 798 } 799 } 800 #endif /* STUARTCONSOLE */ 801 802 #ifdef BTUARTCONSOLE 803 #ifdef KGDB 804 if (strcmp(kgdb_devname, "btuart") == 0) { 805 /* port is reserved for kgdb */ 806 } else 807 #endif 808 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 809 if (console[0] == '\0' || strcasecmp(console, "btuart") == 0) 810 #endif 811 { 812 int rv; 813 814 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_BTUART_BASE, 815 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 816 if (rv == 0) { 817 pxa2x0_clkman_config(CKEN_BTUART, 1); 818 return; 819 } 820 } 821 #endif /* BTUARTCONSOLE */ 822 823 #ifdef HWUARTCONSOLE 824 #ifdef KGDB 825 if (strcmp(kgdb_devname, "hwuart") == 0) { 826 /* port is reserved for kgdb */ 827 } else 828 #endif 829 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 830 if (console[0] == '\0' || strcasecmp(console, "hwuart") == 0) 831 #endif 832 { 833 rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_HWUART_BASE, 834 comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode); 835 if (rv == 0) { 836 pxa2x0_clkman_config(CKEN_HWUART, 1); 837 return; 838 } 839 } 840 #endif /* HWUARTCONSOLE */ 841 842 #elif defined(OVERO) 843 844 if (comcnattach(&omap_a4x_bs_tag, 0x49020000, comcnspeed, 845 OMAP_COM_FREQ, COM_TYPE_NORMAL, comcnmode) == 0) 846 return; 847 848 #endif /* GUMSTIX or OVERO */ 849 850 #endif /* NCOM */ 851 852 #if NLCD > 0 853 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE) 854 if (console[0] == '\0' || strcasecmp(console, "lcd") == 0) 855 #endif 856 { 857 gxlcd_cnattach(); 858 } 859 #endif 860 } 861 862 #ifdef KGDB 863 static void 864 kgdb_port_init(void) 865 { 866 #if (NCOM > 0) && defined(COM_PXA2X0) 867 paddr_t paddr = 0; 868 int cken = 0; 869 870 if (0 == strcmp(kgdb_devname, "ffuart")) { 871 paddr = PXA2X0_FFUART_BASE; 872 cken = CKEN_FFUART; 873 } else if (0 == strcmp(kgdb_devname, "stuart")) { 874 paddr = PXA2X0_STUART_BASE; 875 cken = CKEN_STUART; 876 } else if (0 == strcmp(kgdb_devname, "btuart")) { 877 paddr = PXA2X0_BTUART_BASE; 878 cken = CKEN_BTUART; 879 } else if (0 == strcmp(kgdb_devname, "hwuart")) { 880 paddr = PXA2X0_HWUART_BASE; 881 cken = CKEN_HWUART; 882 } 883 884 if (paddr && 885 0 == com_kgdb_attach(&pxa2x0_a4x_bs_tag, paddr, 886 kgdb_devrate, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comkgdbmode)) { 887 888 pxa2x0_clkman_config(cken, 1); 889 } 890 891 #endif 892 } 893 #endif 894 895 static void 896 gumstix_device_register(device_t dev, void *aux) 897 { 898 prop_dictionary_t dict = device_properties(dev); 899 900 if (device_is_a(dev, "ehci")) { 901 prop_dictionary_set_uint16(dict, "nports", 2); 902 prop_dictionary_set_bool(dict, "phy-reset", true); 903 prop_dictionary_set_cstring(dict, "port0-mode", "none"); 904 prop_dictionary_set_int16(dict, "port0-gpio", -1); 905 prop_dictionary_set_cstring(dict, "port1-mode", "phy"); 906 prop_dictionary_set_int16(dict, "port1-gpio", 183); 907 prop_dictionary_set_bool(dict, "port1-gpioval", true); 908 prop_dictionary_set_uint16(dict, "dpll5-m", 443); 909 prop_dictionary_set_uint16(dict, "dpll5-n", 11); 910 prop_dictionary_set_uint16(dict, "dpll5-m2", 4); 911 } 912 if (device_is_a(dev, "ohci")) { 913 if (prop_dictionary_set_bool(dict, 914 "Ganged-power-mask-on-port1", 1) == false) { 915 printf("WARNING: unable to set power-mask for port1" 916 " property for %s\n", device_xname(dev)); 917 } 918 if (prop_dictionary_set_bool(dict, 919 "Ganged-power-mask-on-port2", 1) == false) { 920 printf("WARNING: unable to set power-mask for port2" 921 " property for %s\n", device_xname(dev)); 922 } 923 if (prop_dictionary_set_bool(dict, 924 "Ganged-power-mask-on-port3", 1) == false) { 925 printf("WARNING: unable to set power-mask for port3" 926 " property for %s\n", device_xname(dev)); 927 } 928 } 929 } 930
Indexes created Fri Oct 31 11:10:07 GMT 2025