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1 | /* |
2 | * Copyright (c) 2011 The Chromium OS Authors. | |
3 | * (C) Copyright 2002-2006 | |
4 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
5 | * | |
6 | * (C) Copyright 2002 | |
7 | * Sysgo Real-Time Solutions, GmbH <www.elinos.com> | |
8 | * Marius Groeger <mgroeger@sysgo.de> | |
9 | * | |
10 | * See file CREDITS for list of people who contributed to this | |
11 | * project. | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or | |
14 | * modify it under the terms of the GNU General Public License as | |
15 | * published by the Free Software Foundation; either version 2 of | |
16 | * the License, or (at your option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
26 | * MA 02111-1307 USA | |
27 | */ | |
28 | ||
29 | #include <common.h> | |
30 | #include <linux/compiler.h> | |
31 | #include <version.h> | |
32 | #include <environment.h> | |
33 | #include <fdtdec.h> | |
34 | #include <initcall.h> | |
35 | #include <logbuff.h> | |
36 | #include <post.h> | |
37 | #include <asm/io.h> | |
38 | #include <asm/sections.h> | |
39 | #include <linux/compiler.h> | |
40 | ||
41 | /* | |
42 | * Pointer to initial global data area | |
43 | * | |
44 | * Here we initialize it if needed. | |
45 | */ | |
46 | #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR | |
47 | #undef XTRN_DECLARE_GLOBAL_DATA_PTR | |
48 | #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */ | |
49 | DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR); | |
50 | #else | |
51 | DECLARE_GLOBAL_DATA_PTR; | |
52 | #endif | |
53 | ||
54 | /* | |
55 | * sjg: IMO this code should be | |
56 | * refactored to a single function, something like: | |
57 | * | |
58 | * void led_set_state(enum led_colour_t colour, int on); | |
59 | */ | |
60 | /************************************************************************ | |
61 | * Coloured LED functionality | |
62 | ************************************************************************ | |
63 | * May be supplied by boards if desired | |
64 | */ | |
65 | inline void __coloured_LED_init(void) {} | |
66 | void coloured_LED_init(void) | |
67 | __attribute__((weak, alias("__coloured_LED_init"))); | |
68 | inline void __red_led_on(void) {} | |
69 | void red_led_on(void) __attribute__((weak, alias("__red_led_on"))); | |
70 | inline void __red_led_off(void) {} | |
71 | void red_led_off(void) __attribute__((weak, alias("__red_led_off"))); | |
72 | inline void __green_led_on(void) {} | |
73 | void green_led_on(void) __attribute__((weak, alias("__green_led_on"))); | |
74 | inline void __green_led_off(void) {} | |
75 | void green_led_off(void) __attribute__((weak, alias("__green_led_off"))); | |
76 | inline void __yellow_led_on(void) {} | |
77 | void yellow_led_on(void) __attribute__((weak, alias("__yellow_led_on"))); | |
78 | inline void __yellow_led_off(void) {} | |
79 | void yellow_led_off(void) __attribute__((weak, alias("__yellow_led_off"))); | |
80 | inline void __blue_led_on(void) {} | |
81 | void blue_led_on(void) __attribute__((weak, alias("__blue_led_on"))); | |
82 | inline void __blue_led_off(void) {} | |
83 | void blue_led_off(void) __attribute__((weak, alias("__blue_led_off"))); | |
84 | ||
85 | /* | |
86 | * Why is gd allocated a register? Prior to reloc it might be better to | |
87 | * just pass it around to each function in this file? | |
88 | * | |
89 | * After reloc one could argue that it is hardly used and doesn't need | |
90 | * to be in a register. Or if it is it should perhaps hold pointers to all | |
91 | * global data for all modules, so that post-reloc we can avoid the massive | |
92 | * literal pool we get on ARM. Or perhaps just encourage each module to use | |
93 | * a structure... | |
94 | */ | |
95 | ||
96 | /* | |
97 | * Could the CONFIG_SPL_BUILD infection become a flag in gd? | |
98 | */ | |
99 | ||
100 | static int init_baud_rate(void) | |
101 | { | |
102 | gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE); | |
103 | return 0; | |
104 | } | |
105 | ||
106 | static int display_text_info(void) | |
107 | { | |
108 | ulong bss_start, bss_end; | |
109 | ||
110 | bss_start = _bss_start_ofs + _TEXT_BASE; | |
111 | bss_end = _bss_end_ofs + _TEXT_BASE; | |
112 | debug("U-Boot code: %08X -> %08lX BSS: -> %08lX\n", | |
113 | CONFIG_SYS_TEXT_BASE, bss_start, bss_end); | |
114 | ||
115 | #ifdef CONFIG_MODEM_SUPPORT | |
116 | debug("Modem Support enabled\n"); | |
117 | #endif | |
118 | #ifdef CONFIG_USE_IRQ | |
119 | debug("IRQ Stack: %08lx\n", IRQ_STACK_START); | |
120 | debug("FIQ Stack: %08lx\n", FIQ_STACK_START); | |
121 | #endif | |
122 | ||
123 | return 0; | |
124 | } | |
125 | ||
126 | static int announce_dram_init(void) | |
127 | { | |
128 | puts("DRAM: "); | |
129 | return 0; | |
130 | } | |
131 | ||
132 | static int show_dram_config(void) | |
133 | { | |
134 | ulong size; | |
135 | ||
136 | #ifdef CONFIG_NR_DRAM_BANKS | |
137 | int i; | |
138 | ||
139 | debug("\nRAM Configuration:\n"); | |
140 | for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) { | |
141 | size += gd->bd->bi_dram[i].size; | |
142 | debug("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start); | |
143 | #ifdef DEBUG | |
144 | print_size(gd->bd->bi_dram[i].size, "\n"); | |
145 | #endif | |
146 | } | |
147 | debug("\nDRAM: "); | |
148 | #else | |
149 | size = gd->ram_size; | |
150 | #endif | |
151 | ||
152 | print_size(size, "\n"); | |
153 | ||
154 | return 0; | |
155 | } | |
156 | ||
157 | void __dram_init_banksize(void) | |
158 | { | |
159 | #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE) | |
160 | gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; | |
161 | gd->bd->bi_dram[0].size = get_effective_memsize(); | |
162 | #endif | |
163 | } | |
164 | ||
165 | void dram_init_banksize(void) | |
166 | __attribute__((weak, alias("__dram_init_banksize"))); | |
167 | ||
168 | static int zero_global_data(void) | |
169 | { | |
170 | memset((void *)gd, '\0', sizeof(gd_t)); | |
171 | ||
172 | return 0; | |
173 | } | |
174 | ||
175 | static int setup_mon_len(void) | |
176 | { | |
177 | gd->mon_len = _bss_end_ofs; | |
178 | return 0; | |
179 | } | |
180 | ||
181 | __weak int arch_cpu_init(void) | |
182 | { | |
183 | return 0; | |
184 | } | |
185 | ||
186 | static int setup_fdt(void) | |
187 | { | |
188 | #ifdef CONFIG_OF_EMBED | |
189 | /* Get a pointer to the FDT */ | |
190 | gd->fdt_blob = _binary_dt_dtb_start; | |
191 | #elif defined CONFIG_OF_SEPARATE | |
192 | /* FDT is at end of image */ | |
193 | gd->fdt_blob = (void *)(_end_ofs + CONFIG_SYS_TEXT_BASE); | |
194 | #endif | |
195 | /* Allow the early environment to override the fdt address */ | |
196 | gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16, | |
197 | (uintptr_t)gd->fdt_blob); | |
198 | return 0; | |
199 | } | |
200 | ||
201 | /* Get the top of usable RAM */ | |
202 | __weak ulong board_get_usable_ram_top(ulong total_size) | |
203 | { | |
204 | return gd->ram_top; | |
205 | } | |
206 | ||
207 | static int setup_dest_addr(void) | |
208 | { | |
209 | debug("Monitor len: %08lX\n", gd->mon_len); | |
210 | /* | |
211 | * Ram is setup, size stored in gd !! | |
212 | */ | |
213 | debug("Ram size: %08lX\n", (ulong)gd->ram_size); | |
214 | #if defined(CONFIG_SYS_MEM_TOP_HIDE) | |
215 | /* | |
216 | * Subtract specified amount of memory to hide so that it won't | |
217 | * get "touched" at all by U-Boot. By fixing up gd->ram_size | |
218 | * the Linux kernel should now get passed the now "corrected" | |
219 | * memory size and won't touch it either. This should work | |
220 | * for arch/ppc and arch/powerpc. Only Linux board ports in | |
221 | * arch/powerpc with bootwrapper support, that recalculate the | |
222 | * memory size from the SDRAM controller setup will have to | |
223 | * get fixed. | |
224 | */ | |
225 | gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE; | |
226 | #endif | |
227 | #ifdef CONFIG_SYS_SDRAM_BASE | |
228 | gd->ram_top = CONFIG_SYS_SDRAM_BASE; | |
229 | #endif | |
230 | gd->ram_top = board_get_usable_ram_top(gd->mon_len); | |
231 | gd->dest_addr = gd->ram_top; | |
232 | debug("Ram top: %08lX\n", (ulong)gd->ram_top); | |
233 | gd->dest_addr_sp = gd->dest_addr; | |
234 | return 0; | |
235 | } | |
236 | ||
237 | #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR) | |
238 | static int reserve_logbuffer(void) | |
239 | { | |
240 | /* reserve kernel log buffer */ | |
241 | gd->dest_addr -= LOGBUFF_RESERVE; | |
242 | debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, | |
243 | gd->dest_addr); | |
244 | return 0; | |
245 | } | |
246 | #endif | |
247 | ||
248 | #ifdef CONFIG_PRAM | |
249 | /* reserve protected RAM */ | |
250 | static int reserve_pram(void) | |
251 | { | |
252 | ulong reg; | |
253 | ||
254 | reg = getenv_ulong("pram", 10, CONFIG_PRAM); | |
255 | gd->dest_addr -= (reg << 10); /* size is in kB */ | |
256 | debug("Reserving %ldk for protected RAM at %08lx\n", reg, | |
257 | gd->dest_addr); | |
258 | return 0; | |
259 | } | |
260 | #endif /* CONFIG_PRAM */ | |
261 | ||
262 | /* Round memory pointer down to next 4 kB limit */ | |
263 | static int reserve_round_4k(void) | |
264 | { | |
265 | gd->dest_addr &= ~(4096 - 1); | |
266 | return 0; | |
267 | } | |
268 | ||
269 | #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \ | |
270 | defined(CONFIG_ARM) | |
271 | static int reserve_mmu(void) | |
272 | { | |
273 | /* reserve TLB table */ | |
274 | gd->arch.tlb_size = 4096 * 4; | |
275 | gd->dest_addr -= gd->arch.tlb_size; | |
276 | ||
277 | /* round down to next 64 kB limit */ | |
278 | gd->dest_addr &= ~(0x10000 - 1); | |
279 | ||
280 | gd->arch.tlb_addr = gd->dest_addr; | |
281 | debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr, | |
282 | gd->arch.tlb_addr + gd->arch.tlb_size); | |
283 | return 0; | |
284 | } | |
285 | #endif | |
286 | ||
287 | #ifdef CONFIG_LCD | |
288 | static int reserve_lcd(void) | |
289 | { | |
290 | #ifdef CONFIG_FB_ADDR | |
291 | gd->fb_base = CONFIG_FB_ADDR; | |
292 | #else | |
293 | /* reserve memory for LCD display (always full pages) */ | |
294 | gd->dest_addr = lcd_setmem(gd->dest_addr); | |
295 | gd->fb_base = gd->dest_addr; | |
296 | #endif /* CONFIG_FB_ADDR */ | |
297 | return 0; | |
298 | } | |
299 | #endif /* CONFIG_LCD */ | |
300 | ||
301 | static int reserve_uboot(void) | |
302 | { | |
303 | /* | |
304 | * reserve memory for U-Boot code, data & bss | |
305 | * round down to next 4 kB limit | |
306 | */ | |
307 | gd->dest_addr -= gd->mon_len; | |
308 | gd->dest_addr &= ~(4096 - 1); | |
309 | ||
310 | debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, | |
311 | gd->dest_addr); | |
312 | return 0; | |
313 | } | |
314 | ||
315 | /* reserve memory for malloc() area */ | |
316 | static int reserve_malloc(void) | |
317 | { | |
318 | gd->dest_addr_sp = gd->dest_addr - TOTAL_MALLOC_LEN; | |
319 | debug("Reserving %dk for malloc() at: %08lx\n", | |
320 | TOTAL_MALLOC_LEN >> 10, gd->dest_addr_sp); | |
321 | return 0; | |
322 | } | |
323 | ||
324 | /* (permanently) allocate a Board Info struct */ | |
325 | static int reserve_board(void) | |
326 | { | |
327 | gd->dest_addr_sp -= sizeof(bd_t); | |
328 | gd->bd = (bd_t *)gd->dest_addr_sp; | |
329 | memset(gd->bd, '\0', sizeof(bd_t)); | |
330 | debug("Reserving %zu Bytes for Board Info at: %08lx\n", | |
331 | sizeof(bd_t), gd->dest_addr_sp); | |
332 | return 0; | |
333 | } | |
334 | ||
335 | static int setup_machine(void) | |
336 | { | |
337 | #ifdef CONFIG_MACH_TYPE | |
338 | gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */ | |
339 | #endif | |
340 | return 0; | |
341 | } | |
342 | ||
343 | static int reserve_global_data(void) | |
344 | { | |
345 | gd->dest_addr_sp -= sizeof(gd_t); | |
346 | gd->new_gd = (gd_t *)gd->dest_addr_sp; | |
347 | debug("Reserving %zu Bytes for Global Data at: %08lx\n", | |
348 | sizeof(gd_t), gd->dest_addr_sp); | |
349 | return 0; | |
350 | } | |
351 | ||
352 | static int reserve_fdt(void) | |
353 | { | |
354 | /* | |
355 | * If the device tree is sitting immediate above our image then we | |
356 | * must relocate it. If it is embedded in the data section, then it | |
357 | * will be relocated with other data. | |
358 | */ | |
359 | if (gd->fdt_blob) { | |
360 | gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32); | |
361 | ||
362 | gd->dest_addr_sp -= gd->fdt_size; | |
363 | gd->new_fdt = (void *)gd->dest_addr_sp; | |
364 | debug("Reserving %lu Bytes for FDT at: %p\n", | |
365 | gd->fdt_size, gd->new_fdt); | |
366 | } | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
371 | static int reserve_stacks(void) | |
372 | { | |
373 | /* setup stack pointer for exceptions */ | |
374 | gd->dest_addr_sp -= 16; | |
375 | gd->dest_addr_sp &= ~0xf; | |
376 | gd->irq_sp = gd->dest_addr_sp; | |
377 | ||
378 | /* | |
379 | * Handle architecture-specific things here | |
380 | * TODO(sjg@chromium.org): Perhaps create arch_reserve_stack() | |
381 | * to handle this and put in arch/xxx/lib/stack.c | |
382 | */ | |
383 | # ifdef CONFIG_ARM | |
384 | # ifdef CONFIG_USE_IRQ | |
385 | gd->dest_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ); | |
386 | debug("Reserving %zu Bytes for IRQ stack at: %08lx\n", | |
387 | CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ, gd->dest_addr_sp); | |
388 | ||
389 | /* 8-byte alignment for ARM ABI compliance */ | |
390 | gd->dest_addr_sp &= ~0x07; | |
391 | # endif | |
392 | /* leave 3 words for abort-stack, plus 1 for alignment */ | |
393 | gd->dest_addr_sp -= 16; | |
394 | ||
395 | return 0; | |
396 | } | |
397 | ||
398 | static int display_new_sp(void) | |
399 | { | |
400 | debug("New Stack Pointer is: %08lx\n", gd->dest_addr_sp); | |
401 | ||
402 | return 0; | |
403 | } | |
404 | ||
405 | #ifdef CONFIG_POST | |
406 | static int init_post(void) | |
407 | { | |
408 | post_bootmode_init(); | |
409 | post_run(NULL, POST_ROM | post_bootmode_get(0)); | |
410 | ||
411 | return 0; | |
412 | } | |
413 | #endif | |
414 | ||
415 | static int setup_baud_rate(void) | |
416 | { | |
417 | /* Ick, can we get rid of this line? */ | |
418 | gd->bd->bi_baudrate = gd->baudrate; | |
419 | ||
420 | return 0; | |
421 | } | |
422 | ||
423 | static int setup_dram_config(void) | |
424 | { | |
425 | /* Ram is board specific, so move it to board code ... */ | |
426 | dram_init_banksize(); | |
427 | ||
428 | return 0; | |
429 | } | |
430 | ||
431 | static int reloc_fdt(void) | |
432 | { | |
433 | if (gd->new_fdt) { | |
434 | memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size); | |
435 | gd->fdt_blob = gd->new_fdt; | |
436 | } | |
437 | ||
438 | return 0; | |
439 | } | |
440 | ||
441 | static int setup_reloc(void) | |
442 | { | |
443 | gd->relocaddr = gd->dest_addr; | |
444 | gd->start_addr_sp = gd->dest_addr_sp; | |
445 | gd->reloc_off = gd->dest_addr - CONFIG_SYS_TEXT_BASE; | |
446 | memcpy(gd->new_gd, (char *)gd, sizeof(gd_t)); | |
447 | ||
448 | debug("Relocation Offset is: %08lx\n", gd->reloc_off); | |
449 | debug("Relocating to %08lx, new gd at %p, sp at %08lx\n", | |
450 | gd->dest_addr, gd->new_gd, gd->dest_addr_sp); | |
451 | ||
452 | return 0; | |
453 | } | |
454 | ||
455 | /* ARM calls relocate_code from its crt0.S */ | |
456 | #if !defined(CONFIG_ARM) | |
457 | ||
458 | static int jump_to_copy(void) | |
459 | { | |
460 | relocate_code(gd->dest_addr_sp, gd->new_gd, gd->dest_addr); | |
461 | ||
462 | return 0; | |
463 | } | |
464 | #endif | |
465 | ||
466 | /* Record the board_init_f() bootstage (after arch_cpu_init()) */ | |
467 | static int mark_bootstage(void) | |
468 | { | |
469 | bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f"); | |
470 | ||
471 | return 0; | |
472 | } | |
473 | ||
474 | static init_fnc_t init_sequence_f[] = { | |
475 | setup_fdt, | |
476 | setup_mon_len, | |
477 | arch_cpu_init, /* basic arch cpu dependent setup */ | |
478 | mark_bootstage, | |
479 | #ifdef CONFIG_OF_CONTROL | |
480 | fdtdec_check_fdt, | |
481 | #endif | |
482 | #if defined(CONFIG_BOARD_EARLY_INIT_F) | |
483 | board_early_init_f, | |
484 | #endif | |
485 | timer_init, /* initialize timer */ | |
486 | #ifdef CONFIG_BOARD_POSTCLK_INIT | |
487 | board_postclk_init, | |
488 | #endif | |
489 | #ifdef CONFIG_FSL_ESDHC | |
490 | get_clocks, | |
491 | #endif | |
492 | env_init, /* initialize environment */ | |
493 | init_baud_rate, /* initialze baudrate settings */ | |
494 | serial_init, /* serial communications setup */ | |
495 | console_init_f, /* stage 1 init of console */ | |
496 | display_options, /* say that we are here */ | |
497 | display_text_info, /* show debugging info if required */ | |
498 | #if defined(CONFIG_DISPLAY_CPUINFO) | |
499 | print_cpuinfo, /* display cpu info (and speed) */ | |
500 | #endif | |
501 | #if defined(CONFIG_DISPLAY_BOARDINFO) | |
502 | checkboard, /* display board info */ | |
503 | #endif | |
504 | announce_dram_init, | |
505 | /* TODO: unify all these dram functions? */ | |
506 | #ifdef CONFIG_ARM | |
507 | dram_init, /* configure available RAM banks */ | |
508 | #endif | |
509 | #ifdef CONFIG_POST | |
510 | init_post, | |
511 | #endif | |
512 | /* | |
513 | * Now that we have DRAM mapped and working, we can | |
514 | * relocate the code and continue running from DRAM. | |
515 | * | |
516 | * Reserve memory at end of RAM for (top down in that order): | |
517 | * - area that won't get touched by U-Boot and Linux (optional) | |
518 | * - kernel log buffer | |
519 | * - protected RAM | |
520 | * - LCD framebuffer | |
521 | * - monitor code | |
522 | * - board info struct | |
523 | */ | |
524 | setup_dest_addr, | |
525 | #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR) | |
526 | reserve_logbuffer, | |
527 | #endif | |
528 | #ifdef CONFIG_PRAM | |
529 | reserve_pram, | |
530 | #endif | |
531 | reserve_round_4k, | |
532 | #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \ | |
533 | defined(CONFIG_ARM) | |
534 | reserve_mmu, | |
535 | #endif | |
536 | #ifdef CONFIG_LCD | |
537 | reserve_lcd, | |
538 | #endif | |
539 | reserve_uboot, | |
540 | reserve_malloc, | |
541 | reserve_board, | |
542 | setup_machine, | |
543 | reserve_global_data, | |
544 | reserve_fdt, | |
545 | reserve_stacks, | |
546 | setup_dram_config, | |
547 | show_dram_config, | |
548 | setup_baud_rate, | |
549 | display_new_sp, | |
550 | reloc_fdt, | |
551 | setup_reloc, | |
552 | #ifndef CONFIG_ARM | |
553 | jump_to_copy, | |
554 | #endif | |
555 | NULL, | |
556 | }; | |
557 | ||
558 | void board_init_f(ulong boot_flags) | |
559 | { | |
560 | gd_t data; | |
561 | ||
562 | gd = &data; | |
563 | ||
564 | gd->flags = boot_flags; | |
565 | ||
566 | if (initcall_run_list(init_sequence_f)) | |
567 | hang(); | |
568 | ||
569 | #ifndef CONFIG_ARM | |
570 | /* NOTREACHED - jump_to_copy() does not return */ | |
571 | hang(); | |
572 | #endif | |
573 | } | |
574 | ||
575 | void hang(void) | |
576 | { | |
577 | puts("### ERROR ### Please RESET the board ###\n"); | |
578 | for (;;); | |
579 | } |