xref: /openbmc/u-boot/common/board_f.c (revision a9707270)
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  * SPDX-License-Identifier:	GPL-2.0+
11  */
12 
13 #include <common.h>
14 #include <linux/compiler.h>
15 #include <version.h>
16 #include <console.h>
17 #include <environment.h>
18 #include <dm.h>
19 #include <fdtdec.h>
20 #include <fs.h>
21 #if defined(CONFIG_CMD_IDE)
22 #include <ide.h>
23 #endif
24 #include <i2c.h>
25 #include <initcall.h>
26 #include <logbuff.h>
27 #include <malloc.h>
28 #include <mapmem.h>
29 
30 /* TODO: Can we move these into arch/ headers? */
31 #ifdef CONFIG_8xx
32 #include <mpc8xx.h>
33 #endif
34 #ifdef CONFIG_5xx
35 #include <mpc5xx.h>
36 #endif
37 #ifdef CONFIG_MPC5xxx
38 #include <mpc5xxx.h>
39 #endif
40 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
41 #include <asm/mp.h>
42 #endif
43 
44 #include <os.h>
45 #include <post.h>
46 #include <spi.h>
47 #include <status_led.h>
48 #include <timer.h>
49 #include <trace.h>
50 #include <video.h>
51 #include <watchdog.h>
52 #include <linux/errno.h>
53 #include <asm/io.h>
54 #include <asm/sections.h>
55 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
56 #include <asm/init_helpers.h>
57 #endif
58 #if defined(CONFIG_X86) || defined(CONFIG_ARC) || defined(CONFIG_XTENSA)
59 #include <asm/relocate.h>
60 #endif
61 #ifdef CONFIG_SANDBOX
62 #include <asm/state.h>
63 #endif
64 #include <dm/root.h>
65 #include <linux/compiler.h>
66 
67 /*
68  * Pointer to initial global data area
69  *
70  * Here we initialize it if needed.
71  */
72 #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR
73 #undef	XTRN_DECLARE_GLOBAL_DATA_PTR
74 #define XTRN_DECLARE_GLOBAL_DATA_PTR	/* empty = allocate here */
75 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);
76 #else
77 DECLARE_GLOBAL_DATA_PTR;
78 #endif
79 
80 /*
81  * TODO(sjg@chromium.org): IMO this code should be
82  * refactored to a single function, something like:
83  *
84  * void led_set_state(enum led_colour_t colour, int on);
85  */
86 /************************************************************************
87  * Coloured LED functionality
88  ************************************************************************
89  * May be supplied by boards if desired
90  */
91 __weak void coloured_LED_init(void) {}
92 __weak void red_led_on(void) {}
93 __weak void red_led_off(void) {}
94 __weak void green_led_on(void) {}
95 __weak void green_led_off(void) {}
96 __weak void yellow_led_on(void) {}
97 __weak void yellow_led_off(void) {}
98 __weak void blue_led_on(void) {}
99 __weak void blue_led_off(void) {}
100 
101 /*
102  * Why is gd allocated a register? Prior to reloc it might be better to
103  * just pass it around to each function in this file?
104  *
105  * After reloc one could argue that it is hardly used and doesn't need
106  * to be in a register. Or if it is it should perhaps hold pointers to all
107  * global data for all modules, so that post-reloc we can avoid the massive
108  * literal pool we get on ARM. Or perhaps just encourage each module to use
109  * a structure...
110  */
111 
112 /*
113  * Could the CONFIG_SPL_BUILD infection become a flag in gd?
114  */
115 
116 #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
117 static int init_func_watchdog_init(void)
118 {
119 # if defined(CONFIG_HW_WATCHDOG) && (defined(CONFIG_BLACKFIN) || \
120 	defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \
121 	defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG) || \
122 	defined(CONFIG_DESIGNWARE_WATCHDOG) || \
123 	defined(CONFIG_IMX_WATCHDOG))
124 	hw_watchdog_init();
125 	puts("       Watchdog enabled\n");
126 # endif
127 	WATCHDOG_RESET();
128 
129 	return 0;
130 }
131 
132 int init_func_watchdog_reset(void)
133 {
134 	WATCHDOG_RESET();
135 
136 	return 0;
137 }
138 #endif /* CONFIG_WATCHDOG */
139 
140 __weak void board_add_ram_info(int use_default)
141 {
142 	/* please define platform specific board_add_ram_info() */
143 }
144 
145 static int init_baud_rate(void)
146 {
147 	gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
148 	return 0;
149 }
150 
151 static int display_text_info(void)
152 {
153 #if !defined(CONFIG_SANDBOX) && !defined(CONFIG_EFI_APP)
154 	ulong bss_start, bss_end, text_base;
155 
156 	bss_start = (ulong)&__bss_start;
157 	bss_end = (ulong)&__bss_end;
158 
159 #ifdef CONFIG_SYS_TEXT_BASE
160 	text_base = CONFIG_SYS_TEXT_BASE;
161 #else
162 	text_base = CONFIG_SYS_MONITOR_BASE;
163 #endif
164 
165 	debug("U-Boot code: %08lX -> %08lX  BSS: -> %08lX\n",
166 		text_base, bss_start, bss_end);
167 #endif
168 
169 #ifdef CONFIG_USE_IRQ
170 	debug("IRQ Stack: %08lx\n", IRQ_STACK_START);
171 	debug("FIQ Stack: %08lx\n", FIQ_STACK_START);
172 #endif
173 
174 	return 0;
175 }
176 
177 static int announce_dram_init(void)
178 {
179 	puts("DRAM:  ");
180 	return 0;
181 }
182 
183 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
184 static int init_func_ram(void)
185 {
186 #ifdef	CONFIG_BOARD_TYPES
187 	int board_type = gd->board_type;
188 #else
189 	int board_type = 0;	/* use dummy arg */
190 #endif
191 
192 	gd->ram_size = initdram(board_type);
193 
194 	if (gd->ram_size > 0)
195 		return 0;
196 
197 	puts("*** failed ***\n");
198 	return 1;
199 }
200 #endif
201 
202 static int show_dram_config(void)
203 {
204 	unsigned long long size;
205 
206 #ifdef CONFIG_NR_DRAM_BANKS
207 	int i;
208 
209 	debug("\nRAM Configuration:\n");
210 	for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
211 		size += gd->bd->bi_dram[i].size;
212 		debug("Bank #%d: %llx ", i,
213 		      (unsigned long long)(gd->bd->bi_dram[i].start));
214 #ifdef DEBUG
215 		print_size(gd->bd->bi_dram[i].size, "\n");
216 #endif
217 	}
218 	debug("\nDRAM:  ");
219 #else
220 	size = gd->ram_size;
221 #endif
222 
223 	print_size(size, "");
224 	board_add_ram_info(0);
225 	putc('\n');
226 
227 	return 0;
228 }
229 
230 __weak void dram_init_banksize(void)
231 {
232 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
233 	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
234 	gd->bd->bi_dram[0].size = get_effective_memsize();
235 #endif
236 }
237 
238 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
239 static int init_func_i2c(void)
240 {
241 	puts("I2C:   ");
242 #ifdef CONFIG_SYS_I2C
243 	i2c_init_all();
244 #else
245 	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
246 #endif
247 	puts("ready\n");
248 	return 0;
249 }
250 #endif
251 
252 #if defined(CONFIG_HARD_SPI)
253 static int init_func_spi(void)
254 {
255 	puts("SPI:   ");
256 	spi_init();
257 	puts("ready\n");
258 	return 0;
259 }
260 #endif
261 
262 __maybe_unused
263 static int zero_global_data(void)
264 {
265 	memset((void *)gd, '\0', sizeof(gd_t));
266 
267 	return 0;
268 }
269 
270 static int setup_mon_len(void)
271 {
272 #if defined(__ARM__) || defined(__MICROBLAZE__)
273 	gd->mon_len = (ulong)&__bss_end - (ulong)_start;
274 #elif defined(CONFIG_SANDBOX) || defined(CONFIG_EFI_APP)
275 	gd->mon_len = (ulong)&_end - (ulong)_init;
276 #elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2) || \
277 	defined(CONFIG_XTENSA)
278 	gd->mon_len = CONFIG_SYS_MONITOR_LEN;
279 #elif defined(CONFIG_NDS32) || defined(CONFIG_SH)
280 	gd->mon_len = (ulong)(&__bss_end) - (ulong)(&_start);
281 #elif defined(CONFIG_SYS_MONITOR_BASE)
282 	/* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
283 	gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
284 #endif
285 	return 0;
286 }
287 
288 __weak int arch_cpu_init(void)
289 {
290 	return 0;
291 }
292 
293 __weak int mach_cpu_init(void)
294 {
295 	return 0;
296 }
297 
298 #ifdef CONFIG_SANDBOX
299 static int setup_ram_buf(void)
300 {
301 	struct sandbox_state *state = state_get_current();
302 
303 	gd->arch.ram_buf = state->ram_buf;
304 	gd->ram_size = state->ram_size;
305 
306 	return 0;
307 }
308 #endif
309 
310 /* Get the top of usable RAM */
311 __weak ulong board_get_usable_ram_top(ulong total_size)
312 {
313 #ifdef CONFIG_SYS_SDRAM_BASE
314 	/*
315 	 * Detect whether we have so much RAM that it goes past the end of our
316 	 * 32-bit address space. If so, clip the usable RAM so it doesn't.
317 	 */
318 	if (gd->ram_top < CONFIG_SYS_SDRAM_BASE)
319 		/*
320 		 * Will wrap back to top of 32-bit space when reservations
321 		 * are made.
322 		 */
323 		return 0;
324 #endif
325 	return gd->ram_top;
326 }
327 
328 __weak phys_size_t board_reserve_ram_top(phys_size_t ram_size)
329 {
330 #ifdef CONFIG_SYS_MEM_TOP_HIDE
331 	return ram_size - CONFIG_SYS_MEM_TOP_HIDE;
332 #else
333 	return ram_size;
334 #endif
335 }
336 
337 static int setup_dest_addr(void)
338 {
339 	debug("Monitor len: %08lX\n", gd->mon_len);
340 	/*
341 	 * Ram is setup, size stored in gd !!
342 	 */
343 	debug("Ram size: %08lX\n", (ulong)gd->ram_size);
344 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
345 	/* Reserve memory for secure MMU tables, and/or security monitor */
346 	gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
347 	/*
348 	 * Record secure memory location. Need recalcuate if memory splits
349 	 * into banks, or the ram base is not zero.
350 	 */
351 	gd->arch.secure_ram = gd->ram_size;
352 #endif
353 	/*
354 	 * Subtract specified amount of memory to hide so that it won't
355 	 * get "touched" at all by U-Boot. By fixing up gd->ram_size
356 	 * the Linux kernel should now get passed the now "corrected"
357 	 * memory size and won't touch it either. This has been used
358 	 * by arch/powerpc exclusively. Now ARMv8 takes advantage of
359 	 * thie mechanism. If memory is split into banks, addresses
360 	 * need to be calculated.
361 	 */
362 	gd->ram_size = board_reserve_ram_top(gd->ram_size);
363 
364 #ifdef CONFIG_SYS_SDRAM_BASE
365 	gd->ram_top = CONFIG_SYS_SDRAM_BASE;
366 #endif
367 	gd->ram_top += get_effective_memsize();
368 	gd->ram_top = board_get_usable_ram_top(gd->mon_len);
369 	gd->relocaddr = gd->ram_top;
370 	debug("Ram top: %08lX\n", (ulong)gd->ram_top);
371 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
372 	/*
373 	 * We need to make sure the location we intend to put secondary core
374 	 * boot code is reserved and not used by any part of u-boot
375 	 */
376 	if (gd->relocaddr > determine_mp_bootpg(NULL)) {
377 		gd->relocaddr = determine_mp_bootpg(NULL);
378 		debug("Reserving MP boot page to %08lx\n", gd->relocaddr);
379 	}
380 #endif
381 	return 0;
382 }
383 
384 #if defined(CONFIG_SPARC)
385 static int reserve_prom(void)
386 {
387 	/* defined in arch/sparc/cpu/leon?/prom.c */
388 	extern void *__prom_start_reloc;
389 	int size = 8192; /* page table = 2k, prom = 6k */
390 	gd->relocaddr -= size;
391 	__prom_start_reloc = map_sysmem(gd->relocaddr + 2048, size - 2048);
392 	debug("Reserving %dk for PROM and page table at %08lx\n", size,
393 		gd->relocaddr);
394 	return 0;
395 }
396 #endif
397 
398 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
399 static int reserve_logbuffer(void)
400 {
401 	/* reserve kernel log buffer */
402 	gd->relocaddr -= LOGBUFF_RESERVE;
403 	debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
404 		gd->relocaddr);
405 	return 0;
406 }
407 #endif
408 
409 #ifdef CONFIG_PRAM
410 /* reserve protected RAM */
411 static int reserve_pram(void)
412 {
413 	ulong reg;
414 
415 	reg = getenv_ulong("pram", 10, CONFIG_PRAM);
416 	gd->relocaddr -= (reg << 10);		/* size is in kB */
417 	debug("Reserving %ldk for protected RAM at %08lx\n", reg,
418 	      gd->relocaddr);
419 	return 0;
420 }
421 #endif /* CONFIG_PRAM */
422 
423 /* Round memory pointer down to next 4 kB limit */
424 static int reserve_round_4k(void)
425 {
426 	gd->relocaddr &= ~(4096 - 1);
427 	return 0;
428 }
429 
430 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
431 		defined(CONFIG_ARM)
432 static int reserve_mmu(void)
433 {
434 	/* reserve TLB table */
435 	gd->arch.tlb_size = PGTABLE_SIZE;
436 	gd->relocaddr -= gd->arch.tlb_size;
437 
438 	/* round down to next 64 kB limit */
439 	gd->relocaddr &= ~(0x10000 - 1);
440 
441 	gd->arch.tlb_addr = gd->relocaddr;
442 	debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
443 	      gd->arch.tlb_addr + gd->arch.tlb_size);
444 
445 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
446 	/*
447 	 * Record allocated tlb_addr in case gd->tlb_addr to be overwritten
448 	 * with location within secure ram.
449 	 */
450 	gd->arch.tlb_allocated = gd->arch.tlb_addr;
451 #endif
452 
453 	return 0;
454 }
455 #endif
456 
457 #ifdef CONFIG_DM_VIDEO
458 static int reserve_video(void)
459 {
460 	ulong addr;
461 	int ret;
462 
463 	addr = gd->relocaddr;
464 	ret = video_reserve(&addr);
465 	if (ret)
466 		return ret;
467 	gd->relocaddr = addr;
468 
469 	return 0;
470 }
471 #else
472 
473 # ifdef CONFIG_LCD
474 static int reserve_lcd(void)
475 {
476 #  ifdef CONFIG_FB_ADDR
477 	gd->fb_base = CONFIG_FB_ADDR;
478 #  else
479 	/* reserve memory for LCD display (always full pages) */
480 	gd->relocaddr = lcd_setmem(gd->relocaddr);
481 	gd->fb_base = gd->relocaddr;
482 #  endif /* CONFIG_FB_ADDR */
483 
484 	return 0;
485 }
486 # endif /* CONFIG_LCD */
487 
488 # if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
489 		!defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
490 		!defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
491 static int reserve_legacy_video(void)
492 {
493 	/* reserve memory for video display (always full pages) */
494 	gd->relocaddr = video_setmem(gd->relocaddr);
495 	gd->fb_base = gd->relocaddr;
496 
497 	return 0;
498 }
499 # endif
500 #endif /* !CONFIG_DM_VIDEO */
501 
502 static int reserve_trace(void)
503 {
504 #ifdef CONFIG_TRACE
505 	gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
506 	gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
507 	debug("Reserving %dk for trace data at: %08lx\n",
508 	      CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
509 #endif
510 
511 	return 0;
512 }
513 
514 static int reserve_uboot(void)
515 {
516 	/*
517 	 * reserve memory for U-Boot code, data & bss
518 	 * round down to next 4 kB limit
519 	 */
520 	gd->relocaddr -= gd->mon_len;
521 	gd->relocaddr &= ~(4096 - 1);
522 #ifdef CONFIG_E500
523 	/* round down to next 64 kB limit so that IVPR stays aligned */
524 	gd->relocaddr &= ~(65536 - 1);
525 #endif
526 
527 	debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
528 	      gd->relocaddr);
529 
530 	gd->start_addr_sp = gd->relocaddr;
531 
532 	return 0;
533 }
534 
535 #ifndef CONFIG_SPL_BUILD
536 /* reserve memory for malloc() area */
537 static int reserve_malloc(void)
538 {
539 	gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN;
540 	debug("Reserving %dk for malloc() at: %08lx\n",
541 			TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
542 	return 0;
543 }
544 
545 /* (permanently) allocate a Board Info struct */
546 static int reserve_board(void)
547 {
548 	if (!gd->bd) {
549 		gd->start_addr_sp -= sizeof(bd_t);
550 		gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t));
551 		memset(gd->bd, '\0', sizeof(bd_t));
552 		debug("Reserving %zu Bytes for Board Info at: %08lx\n",
553 		      sizeof(bd_t), gd->start_addr_sp);
554 	}
555 	return 0;
556 }
557 #endif
558 
559 static int setup_machine(void)
560 {
561 #ifdef CONFIG_MACH_TYPE
562 	gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
563 #endif
564 	return 0;
565 }
566 
567 static int reserve_global_data(void)
568 {
569 	gd->start_addr_sp -= sizeof(gd_t);
570 	gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
571 	debug("Reserving %zu Bytes for Global Data at: %08lx\n",
572 			sizeof(gd_t), gd->start_addr_sp);
573 	return 0;
574 }
575 
576 static int reserve_fdt(void)
577 {
578 #ifndef CONFIG_OF_EMBED
579 	/*
580 	 * If the device tree is sitting immediately above our image then we
581 	 * must relocate it. If it is embedded in the data section, then it
582 	 * will be relocated with other data.
583 	 */
584 	if (gd->fdt_blob) {
585 		gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
586 
587 		gd->start_addr_sp -= gd->fdt_size;
588 		gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size);
589 		debug("Reserving %lu Bytes for FDT at: %08lx\n",
590 		      gd->fdt_size, gd->start_addr_sp);
591 	}
592 #endif
593 
594 	return 0;
595 }
596 
597 int arch_reserve_stacks(void)
598 {
599 	return 0;
600 }
601 
602 static int reserve_stacks(void)
603 {
604 	/* make stack pointer 16-byte aligned */
605 	gd->start_addr_sp -= 16;
606 	gd->start_addr_sp &= ~0xf;
607 
608 	/*
609 	 * let the architecture-specific code tailor gd->start_addr_sp and
610 	 * gd->irq_sp
611 	 */
612 	return arch_reserve_stacks();
613 }
614 
615 static int display_new_sp(void)
616 {
617 	debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
618 
619 	return 0;
620 }
621 
622 #if defined(CONFIG_M68K) || defined(CONFIG_MIPS) || defined(CONFIG_PPC) || \
623 	defined(CONFIG_SH)
624 static int setup_board_part1(void)
625 {
626 	bd_t *bd = gd->bd;
627 
628 	/*
629 	 * Save local variables to board info struct
630 	 */
631 	bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;	/* start of memory */
632 	bd->bi_memsize = gd->ram_size;			/* size in bytes */
633 
634 #ifdef CONFIG_SYS_SRAM_BASE
635 	bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;	/* start of SRAM */
636 	bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;		/* size  of SRAM */
637 #endif
638 
639 #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || defined(CONFIG_5xx) || \
640 		defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
641 	bd->bi_immr_base = CONFIG_SYS_IMMR;	/* base  of IMMR register     */
642 #endif
643 #if defined(CONFIG_MPC5xxx) || defined(CONFIG_M68K)
644 	bd->bi_mbar_base = CONFIG_SYS_MBAR;	/* base of internal registers */
645 #endif
646 #if defined(CONFIG_MPC83xx)
647 	bd->bi_immrbar = CONFIG_SYS_IMMR;
648 #endif
649 
650 	return 0;
651 }
652 #endif
653 
654 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
655 static int setup_board_part2(void)
656 {
657 	bd_t *bd = gd->bd;
658 
659 	bd->bi_intfreq = gd->cpu_clk;	/* Internal Freq, in Hz */
660 	bd->bi_busfreq = gd->bus_clk;	/* Bus Freq,      in Hz */
661 #if defined(CONFIG_CPM2)
662 	bd->bi_cpmfreq = gd->arch.cpm_clk;
663 	bd->bi_brgfreq = gd->arch.brg_clk;
664 	bd->bi_sccfreq = gd->arch.scc_clk;
665 	bd->bi_vco = gd->arch.vco_out;
666 #endif /* CONFIG_CPM2 */
667 #if defined(CONFIG_MPC512X)
668 	bd->bi_ipsfreq = gd->arch.ips_clk;
669 #endif /* CONFIG_MPC512X */
670 #if defined(CONFIG_MPC5xxx)
671 	bd->bi_ipbfreq = gd->arch.ipb_clk;
672 	bd->bi_pcifreq = gd->pci_clk;
673 #endif /* CONFIG_MPC5xxx */
674 #if defined(CONFIG_M68K) && defined(CONFIG_PCI)
675 	bd->bi_pcifreq = gd->pci_clk;
676 #endif
677 #if defined(CONFIG_EXTRA_CLOCK)
678 	bd->bi_inpfreq = gd->arch.inp_clk;	/* input Freq in Hz */
679 	bd->bi_vcofreq = gd->arch.vco_clk;	/* vco Freq in Hz */
680 	bd->bi_flbfreq = gd->arch.flb_clk;	/* flexbus Freq in Hz */
681 #endif
682 
683 	return 0;
684 }
685 #endif
686 
687 #ifdef CONFIG_SYS_EXTBDINFO
688 static int setup_board_extra(void)
689 {
690 	bd_t *bd = gd->bd;
691 
692 	strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version));
693 	strncpy((char *) bd->bi_r_version, U_BOOT_VERSION,
694 		sizeof(bd->bi_r_version));
695 
696 	bd->bi_procfreq = gd->cpu_clk;	/* Processor Speed, In Hz */
697 	bd->bi_plb_busfreq = gd->bus_clk;
698 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
699 		defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
700 		defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
701 	bd->bi_pci_busfreq = get_PCI_freq();
702 	bd->bi_opbfreq = get_OPB_freq();
703 #elif defined(CONFIG_XILINX_405)
704 	bd->bi_pci_busfreq = get_PCI_freq();
705 #endif
706 
707 	return 0;
708 }
709 #endif
710 
711 #ifdef CONFIG_POST
712 static int init_post(void)
713 {
714 	post_bootmode_init();
715 	post_run(NULL, POST_ROM | post_bootmode_get(0));
716 
717 	return 0;
718 }
719 #endif
720 
721 static int setup_dram_config(void)
722 {
723 	/* Ram is board specific, so move it to board code ... */
724 	dram_init_banksize();
725 
726 	return 0;
727 }
728 
729 static int reloc_fdt(void)
730 {
731 #ifndef CONFIG_OF_EMBED
732 	if (gd->flags & GD_FLG_SKIP_RELOC)
733 		return 0;
734 	if (gd->new_fdt) {
735 		memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size);
736 		gd->fdt_blob = gd->new_fdt;
737 	}
738 #endif
739 
740 	return 0;
741 }
742 
743 static int setup_reloc(void)
744 {
745 	if (gd->flags & GD_FLG_SKIP_RELOC) {
746 		debug("Skipping relocation due to flag\n");
747 		return 0;
748 	}
749 
750 #ifdef CONFIG_SYS_TEXT_BASE
751 	gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
752 #ifdef CONFIG_M68K
753 	/*
754 	 * On all ColdFire arch cpu, monitor code starts always
755 	 * just after the default vector table location, so at 0x400
756 	 */
757 	gd->reloc_off = gd->relocaddr - (CONFIG_SYS_TEXT_BASE + 0x400);
758 #endif
759 #endif
760 	memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
761 
762 	debug("Relocation Offset is: %08lx\n", gd->reloc_off);
763 	debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
764 	      gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd),
765 	      gd->start_addr_sp);
766 
767 	return 0;
768 }
769 
770 /* ARM calls relocate_code from its crt0.S */
771 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
772 
773 static int jump_to_copy(void)
774 {
775 	if (gd->flags & GD_FLG_SKIP_RELOC)
776 		return 0;
777 	/*
778 	 * x86 is special, but in a nice way. It uses a trampoline which
779 	 * enables the dcache if possible.
780 	 *
781 	 * For now, other archs use relocate_code(), which is implemented
782 	 * similarly for all archs. When we do generic relocation, hopefully
783 	 * we can make all archs enable the dcache prior to relocation.
784 	 */
785 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
786 	/*
787 	 * SDRAM and console are now initialised. The final stack can now
788 	 * be setup in SDRAM. Code execution will continue in Flash, but
789 	 * with the stack in SDRAM and Global Data in temporary memory
790 	 * (CPU cache)
791 	 */
792 	arch_setup_gd(gd->new_gd);
793 	board_init_f_r_trampoline(gd->start_addr_sp);
794 #else
795 	relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr);
796 #endif
797 
798 	return 0;
799 }
800 #endif
801 
802 /* Record the board_init_f() bootstage (after arch_cpu_init()) */
803 static int mark_bootstage(void)
804 {
805 	bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
806 
807 	return 0;
808 }
809 
810 static int initf_console_record(void)
811 {
812 #if defined(CONFIG_CONSOLE_RECORD) && defined(CONFIG_SYS_MALLOC_F_LEN)
813 	return console_record_init();
814 #else
815 	return 0;
816 #endif
817 }
818 
819 static int initf_dm(void)
820 {
821 #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN)
822 	int ret;
823 
824 	ret = dm_init_and_scan(true);
825 	if (ret)
826 		return ret;
827 #endif
828 #ifdef CONFIG_TIMER_EARLY
829 	ret = dm_timer_init();
830 	if (ret)
831 		return ret;
832 #endif
833 
834 	return 0;
835 }
836 
837 /* Architecture-specific memory reservation */
838 __weak int reserve_arch(void)
839 {
840 	return 0;
841 }
842 
843 __weak int arch_cpu_init_dm(void)
844 {
845 	return 0;
846 }
847 
848 static init_fnc_t init_sequence_f[] = {
849 #ifdef CONFIG_SANDBOX
850 	setup_ram_buf,
851 #endif
852 	setup_mon_len,
853 #ifdef CONFIG_OF_CONTROL
854 	fdtdec_setup,
855 #endif
856 #ifdef CONFIG_TRACE
857 	trace_early_init,
858 #endif
859 	initf_malloc,
860 	initf_console_record,
861 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
862 	/* TODO: can this go into arch_cpu_init()? */
863 	probecpu,
864 #endif
865 #if defined(CONFIG_X86) && defined(CONFIG_HAVE_FSP)
866 	x86_fsp_init,
867 #endif
868 	arch_cpu_init,		/* basic arch cpu dependent setup */
869 	mach_cpu_init,		/* SoC/machine dependent CPU setup */
870 	initf_dm,
871 	arch_cpu_init_dm,
872 	mark_bootstage,		/* need timer, go after init dm */
873 #if defined(CONFIG_BOARD_EARLY_INIT_F)
874 	board_early_init_f,
875 #endif
876 	/* TODO: can any of this go into arch_cpu_init()? */
877 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT)
878 	get_clocks,		/* get CPU and bus clocks (etc.) */
879 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
880 		&& !defined(CONFIG_TQM885D)
881 	adjust_sdram_tbs_8xx,
882 #endif
883 	/* TODO: can we rename this to timer_init()? */
884 	init_timebase,
885 #endif
886 #if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || \
887 		defined(CONFIG_BLACKFIN) || defined(CONFIG_NDS32) || \
888 		defined(CONFIG_SH) || defined(CONFIG_SPARC)
889 	timer_init,		/* initialize timer */
890 #endif
891 #ifdef CONFIG_SYS_ALLOC_DPRAM
892 #if !defined(CONFIG_CPM2)
893 	dpram_init,
894 #endif
895 #endif
896 #if defined(CONFIG_BOARD_POSTCLK_INIT)
897 	board_postclk_init,
898 #endif
899 #if defined(CONFIG_SYS_FSL_CLK) || defined(CONFIG_M68K)
900 	get_clocks,
901 #endif
902 	env_init,		/* initialize environment */
903 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
904 	/* get CPU and bus clocks according to the environment variable */
905 	get_clocks_866,
906 	/* adjust sdram refresh rate according to the new clock */
907 	sdram_adjust_866,
908 	init_timebase,
909 #endif
910 	init_baud_rate,		/* initialze baudrate settings */
911 	serial_init,		/* serial communications setup */
912 	console_init_f,		/* stage 1 init of console */
913 #ifdef CONFIG_SANDBOX
914 	sandbox_early_getopt_check,
915 #endif
916 	display_options,	/* say that we are here */
917 	display_text_info,	/* show debugging info if required */
918 #if defined(CONFIG_MPC8260)
919 	prt_8260_rsr,
920 	prt_8260_clks,
921 #endif /* CONFIG_MPC8260 */
922 #if defined(CONFIG_MPC83xx)
923 	prt_83xx_rsr,
924 #endif
925 #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_SH)
926 	checkcpu,
927 #endif
928 	print_cpuinfo,		/* display cpu info (and speed) */
929 #if defined(CONFIG_MPC5xxx)
930 	prt_mpc5xxx_clks,
931 #endif /* CONFIG_MPC5xxx */
932 #if defined(CONFIG_DISPLAY_BOARDINFO)
933 	show_board_info,
934 #endif
935 	INIT_FUNC_WATCHDOG_INIT
936 #if defined(CONFIG_MISC_INIT_F)
937 	misc_init_f,
938 #endif
939 	INIT_FUNC_WATCHDOG_RESET
940 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
941 	init_func_i2c,
942 #endif
943 #if defined(CONFIG_HARD_SPI)
944 	init_func_spi,
945 #endif
946 	announce_dram_init,
947 	/* TODO: unify all these dram functions? */
948 #if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_NDS32) || \
949 		defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32) || \
950 		defined(CONFIG_SH)
951 	dram_init,		/* configure available RAM banks */
952 #endif
953 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
954 	init_func_ram,
955 #endif
956 #ifdef CONFIG_POST
957 	post_init_f,
958 #endif
959 	INIT_FUNC_WATCHDOG_RESET
960 #if defined(CONFIG_SYS_DRAM_TEST)
961 	testdram,
962 #endif /* CONFIG_SYS_DRAM_TEST */
963 	INIT_FUNC_WATCHDOG_RESET
964 
965 #ifdef CONFIG_POST
966 	init_post,
967 #endif
968 	INIT_FUNC_WATCHDOG_RESET
969 	/*
970 	 * Now that we have DRAM mapped and working, we can
971 	 * relocate the code and continue running from DRAM.
972 	 *
973 	 * Reserve memory at end of RAM for (top down in that order):
974 	 *  - area that won't get touched by U-Boot and Linux (optional)
975 	 *  - kernel log buffer
976 	 *  - protected RAM
977 	 *  - LCD framebuffer
978 	 *  - monitor code
979 	 *  - board info struct
980 	 */
981 	setup_dest_addr,
982 #if defined(CONFIG_BLACKFIN) || defined(CONFIG_XTENSA)
983 	/* Blackfin u-boot monitor should be on top of the ram */
984 	reserve_uboot,
985 #endif
986 #if defined(CONFIG_SPARC)
987 	reserve_prom,
988 #endif
989 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
990 	reserve_logbuffer,
991 #endif
992 #ifdef CONFIG_PRAM
993 	reserve_pram,
994 #endif
995 	reserve_round_4k,
996 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
997 		defined(CONFIG_ARM)
998 	reserve_mmu,
999 #endif
1000 #ifdef CONFIG_DM_VIDEO
1001 	reserve_video,
1002 #else
1003 # ifdef CONFIG_LCD
1004 	reserve_lcd,
1005 # endif
1006 	/* TODO: Why the dependency on CONFIG_8xx? */
1007 # if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
1008 		!defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
1009 		!defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
1010 	reserve_legacy_video,
1011 # endif
1012 #endif /* CONFIG_DM_VIDEO */
1013 	reserve_trace,
1014 #if !defined(CONFIG_BLACKFIN) && !defined(CONFIG_XTENSA)
1015 	reserve_uboot,
1016 #endif
1017 #ifndef CONFIG_SPL_BUILD
1018 	reserve_malloc,
1019 	reserve_board,
1020 #endif
1021 	setup_machine,
1022 	reserve_global_data,
1023 	reserve_fdt,
1024 	reserve_arch,
1025 	reserve_stacks,
1026 	setup_dram_config,
1027 	show_dram_config,
1028 #if defined(CONFIG_M68K) || defined(CONFIG_MIPS) || defined(CONFIG_PPC) || \
1029 	defined(CONFIG_SH)
1030 	setup_board_part1,
1031 #endif
1032 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
1033 	INIT_FUNC_WATCHDOG_RESET
1034 	setup_board_part2,
1035 #endif
1036 	display_new_sp,
1037 #ifdef CONFIG_SYS_EXTBDINFO
1038 	setup_board_extra,
1039 #endif
1040 	INIT_FUNC_WATCHDOG_RESET
1041 	reloc_fdt,
1042 	setup_reloc,
1043 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
1044 	copy_uboot_to_ram,
1045 	clear_bss,
1046 	do_elf_reloc_fixups,
1047 #endif
1048 #if defined(CONFIG_XTENSA)
1049 	clear_bss,
1050 #endif
1051 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1052 	jump_to_copy,
1053 #endif
1054 	NULL,
1055 };
1056 
1057 void board_init_f(ulong boot_flags)
1058 {
1059 #ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA
1060 	/*
1061 	 * For some architectures, global data is initialized and used before
1062 	 * calling this function. The data should be preserved. For others,
1063 	 * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack
1064 	 * here to host global data until relocation.
1065 	 */
1066 	gd_t data;
1067 
1068 	gd = &data;
1069 
1070 	/*
1071 	 * Clear global data before it is accessed at debug print
1072 	 * in initcall_run_list. Otherwise the debug print probably
1073 	 * get the wrong value of gd->have_console.
1074 	 */
1075 	zero_global_data();
1076 #endif
1077 
1078 	gd->flags = boot_flags;
1079 	gd->have_console = 0;
1080 
1081 	if (initcall_run_list(init_sequence_f))
1082 		hang();
1083 
1084 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX) && \
1085 		!defined(CONFIG_EFI_APP)
1086 	/* NOTREACHED - jump_to_copy() does not return */
1087 	hang();
1088 #endif
1089 }
1090 
1091 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
1092 /*
1093  * For now this code is only used on x86.
1094  *
1095  * init_sequence_f_r is the list of init functions which are run when
1096  * U-Boot is executing from Flash with a semi-limited 'C' environment.
1097  * The following limitations must be considered when implementing an
1098  * '_f_r' function:
1099  *  - 'static' variables are read-only
1100  *  - Global Data (gd->xxx) is read/write
1101  *
1102  * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
1103  * supported).  It _should_, if possible, copy global data to RAM and
1104  * initialise the CPU caches (to speed up the relocation process)
1105  *
1106  * NOTE: At present only x86 uses this route, but it is intended that
1107  * all archs will move to this when generic relocation is implemented.
1108  */
1109 static init_fnc_t init_sequence_f_r[] = {
1110 	init_cache_f_r,
1111 
1112 	NULL,
1113 };
1114 
1115 void board_init_f_r(void)
1116 {
1117 	if (initcall_run_list(init_sequence_f_r))
1118 		hang();
1119 
1120 	/*
1121 	 * The pre-relocation drivers may be using memory that has now gone
1122 	 * away. Mark serial as unavailable - this will fall back to the debug
1123 	 * UART if available.
1124 	 */
1125 	gd->flags &= ~GD_FLG_SERIAL_READY;
1126 
1127 	/*
1128 	 * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1129 	 * Transfer execution from Flash to RAM by calculating the address
1130 	 * of the in-RAM copy of board_init_r() and calling it
1131 	 */
1132 	(board_init_r + gd->reloc_off)((gd_t *)gd, gd->relocaddr);
1133 
1134 	/* NOTREACHED - board_init_r() does not return */
1135 	hang();
1136 }
1137 #endif /* CONFIG_X86 */
1138