xref: /openbmc/u-boot/common/board_f.c (revision 412ae53a)
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 <environment.h>
17 #include <dm.h>
18 #include <fdtdec.h>
19 #include <fs.h>
20 #if defined(CONFIG_CMD_IDE)
21 #include <ide.h>
22 #endif
23 #include <i2c.h>
24 #include <initcall.h>
25 #include <logbuff.h>
26 
27 /* TODO: Can we move these into arch/ headers? */
28 #ifdef CONFIG_8xx
29 #include <mpc8xx.h>
30 #endif
31 #ifdef CONFIG_5xx
32 #include <mpc5xx.h>
33 #endif
34 #ifdef CONFIG_MPC5xxx
35 #include <mpc5xxx.h>
36 #endif
37 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
38 #include <asm/mp.h>
39 #endif
40 
41 #include <os.h>
42 #include <post.h>
43 #include <spi.h>
44 #include <status_led.h>
45 #include <trace.h>
46 #include <watchdog.h>
47 #include <asm/errno.h>
48 #include <asm/io.h>
49 #include <asm/sections.h>
50 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
51 #include <asm/init_helpers.h>
52 #include <asm/relocate.h>
53 #endif
54 #ifdef CONFIG_SANDBOX
55 #include <asm/state.h>
56 #endif
57 #include <dm/root.h>
58 #include <linux/compiler.h>
59 
60 /*
61  * Pointer to initial global data area
62  *
63  * Here we initialize it if needed.
64  */
65 #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR
66 #undef	XTRN_DECLARE_GLOBAL_DATA_PTR
67 #define XTRN_DECLARE_GLOBAL_DATA_PTR	/* empty = allocate here */
68 DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);
69 #else
70 DECLARE_GLOBAL_DATA_PTR;
71 #endif
72 
73 /*
74  * sjg: IMO this code should be
75  * refactored to a single function, something like:
76  *
77  * void led_set_state(enum led_colour_t colour, int on);
78  */
79 /************************************************************************
80  * Coloured LED functionality
81  ************************************************************************
82  * May be supplied by boards if desired
83  */
84 __weak void coloured_LED_init(void) {}
85 __weak void red_led_on(void) {}
86 __weak void red_led_off(void) {}
87 __weak void green_led_on(void) {}
88 __weak void green_led_off(void) {}
89 __weak void yellow_led_on(void) {}
90 __weak void yellow_led_off(void) {}
91 __weak void blue_led_on(void) {}
92 __weak void blue_led_off(void) {}
93 
94 /*
95  * Why is gd allocated a register? Prior to reloc it might be better to
96  * just pass it around to each function in this file?
97  *
98  * After reloc one could argue that it is hardly used and doesn't need
99  * to be in a register. Or if it is it should perhaps hold pointers to all
100  * global data for all modules, so that post-reloc we can avoid the massive
101  * literal pool we get on ARM. Or perhaps just encourage each module to use
102  * a structure...
103  */
104 
105 /*
106  * Could the CONFIG_SPL_BUILD infection become a flag in gd?
107  */
108 
109 #if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
110 static int init_func_watchdog_init(void)
111 {
112 # if defined(CONFIG_HW_WATCHDOG) && (defined(CONFIG_BLACKFIN) || \
113 	defined(CONFIG_M68K) || defined(CONFIG_MICROBLAZE) || \
114 	defined(CONFIG_SH) || defined(CONFIG_AT91SAM9_WATCHDOG) || \
115 	defined(CONFIG_IMX_WATCHDOG))
116 	hw_watchdog_init();
117 # endif
118 	puts("       Watchdog enabled\n");
119 	WATCHDOG_RESET();
120 
121 	return 0;
122 }
123 
124 int init_func_watchdog_reset(void)
125 {
126 	WATCHDOG_RESET();
127 
128 	return 0;
129 }
130 #endif /* CONFIG_WATCHDOG */
131 
132 __weak void board_add_ram_info(int use_default)
133 {
134 	/* please define platform specific board_add_ram_info() */
135 }
136 
137 static int init_baud_rate(void)
138 {
139 	gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
140 	return 0;
141 }
142 
143 static int display_text_info(void)
144 {
145 #ifndef CONFIG_SANDBOX
146 	ulong bss_start, bss_end, text_base;
147 
148 	bss_start = (ulong)&__bss_start;
149 	bss_end = (ulong)&__bss_end;
150 
151 #ifdef CONFIG_SYS_TEXT_BASE
152 	text_base = CONFIG_SYS_TEXT_BASE;
153 #else
154 	text_base = CONFIG_SYS_MONITOR_BASE;
155 #endif
156 
157 	debug("U-Boot code: %08lX -> %08lX  BSS: -> %08lX\n",
158 		text_base, bss_start, bss_end);
159 #endif
160 
161 #ifdef CONFIG_MODEM_SUPPORT
162 	debug("Modem Support enabled\n");
163 #endif
164 #ifdef CONFIG_USE_IRQ
165 	debug("IRQ Stack: %08lx\n", IRQ_STACK_START);
166 	debug("FIQ Stack: %08lx\n", FIQ_STACK_START);
167 #endif
168 
169 	return 0;
170 }
171 
172 static int announce_dram_init(void)
173 {
174 	puts("DRAM:  ");
175 	return 0;
176 }
177 
178 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
179 static int init_func_ram(void)
180 {
181 #ifdef	CONFIG_BOARD_TYPES
182 	int board_type = gd->board_type;
183 #else
184 	int board_type = 0;	/* use dummy arg */
185 #endif
186 
187 	gd->ram_size = initdram(board_type);
188 
189 	if (gd->ram_size > 0)
190 		return 0;
191 
192 	puts("*** failed ***\n");
193 	return 1;
194 }
195 #endif
196 
197 static int show_dram_config(void)
198 {
199 	unsigned long long size;
200 
201 #ifdef CONFIG_NR_DRAM_BANKS
202 	int i;
203 
204 	debug("\nRAM Configuration:\n");
205 	for (i = size = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
206 		size += gd->bd->bi_dram[i].size;
207 		debug("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
208 #ifdef DEBUG
209 		print_size(gd->bd->bi_dram[i].size, "\n");
210 #endif
211 	}
212 	debug("\nDRAM:  ");
213 #else
214 	size = gd->ram_size;
215 #endif
216 
217 	print_size(size, "");
218 	board_add_ram_info(0);
219 	putc('\n');
220 
221 	return 0;
222 }
223 
224 __weak void dram_init_banksize(void)
225 {
226 #if defined(CONFIG_NR_DRAM_BANKS) && defined(CONFIG_SYS_SDRAM_BASE)
227 	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
228 	gd->bd->bi_dram[0].size = get_effective_memsize();
229 #endif
230 }
231 
232 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
233 static int init_func_i2c(void)
234 {
235 	puts("I2C:   ");
236 #ifdef CONFIG_SYS_I2C
237 	i2c_init_all();
238 #else
239 	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
240 #endif
241 	puts("ready\n");
242 	return 0;
243 }
244 #endif
245 
246 #if defined(CONFIG_HARD_SPI)
247 static int init_func_spi(void)
248 {
249 	puts("SPI:   ");
250 	spi_init();
251 	puts("ready\n");
252 	return 0;
253 }
254 #endif
255 
256 __maybe_unused
257 static int zero_global_data(void)
258 {
259 	memset((void *)gd, '\0', sizeof(gd_t));
260 
261 	return 0;
262 }
263 
264 static int setup_mon_len(void)
265 {
266 #if defined(__ARM__) || defined(__MICROBLAZE__)
267 	gd->mon_len = (ulong)&__bss_end - (ulong)_start;
268 #elif defined(CONFIG_SANDBOX)
269 	gd->mon_len = (ulong)&_end - (ulong)_init;
270 #elif defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
271 	gd->mon_len = CONFIG_SYS_MONITOR_LEN;
272 #else
273 	/* TODO: use (ulong)&__bss_end - (ulong)&__text_start; ? */
274 	gd->mon_len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
275 #endif
276 	return 0;
277 }
278 
279 __weak int arch_cpu_init(void)
280 {
281 	return 0;
282 }
283 
284 #ifdef CONFIG_OF_HOSTFILE
285 
286 static int read_fdt_from_file(void)
287 {
288 	struct sandbox_state *state = state_get_current();
289 	const char *fname = state->fdt_fname;
290 	void *blob;
291 	loff_t size;
292 	int err;
293 	int fd;
294 
295 	blob = map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR, 0);
296 	if (!state->fdt_fname) {
297 		err = fdt_create_empty_tree(blob, 256);
298 		if (!err)
299 			goto done;
300 		printf("Unable to create empty FDT: %s\n", fdt_strerror(err));
301 		return -EINVAL;
302 	}
303 
304 	err = os_get_filesize(fname, &size);
305 	if (err < 0) {
306 		printf("Failed to file FDT file '%s'\n", fname);
307 		return err;
308 	}
309 	fd = os_open(fname, OS_O_RDONLY);
310 	if (fd < 0) {
311 		printf("Failed to open FDT file '%s'\n", fname);
312 		return -EACCES;
313 	}
314 	if (os_read(fd, blob, size) != size) {
315 		os_close(fd);
316 		return -EIO;
317 	}
318 	os_close(fd);
319 
320 done:
321 	gd->fdt_blob = blob;
322 
323 	return 0;
324 }
325 #endif
326 
327 #ifdef CONFIG_SANDBOX
328 static int setup_ram_buf(void)
329 {
330 	struct sandbox_state *state = state_get_current();
331 
332 	gd->arch.ram_buf = state->ram_buf;
333 	gd->ram_size = state->ram_size;
334 
335 	return 0;
336 }
337 #endif
338 
339 static int setup_fdt(void)
340 {
341 #ifdef CONFIG_OF_CONTROL
342 # ifdef CONFIG_OF_EMBED
343 	/* Get a pointer to the FDT */
344 	gd->fdt_blob = __dtb_dt_begin;
345 # elif defined CONFIG_OF_SEPARATE
346 	/* FDT is at end of image */
347 	gd->fdt_blob = (ulong *)&_end;
348 # elif defined(CONFIG_OF_HOSTFILE)
349 	if (read_fdt_from_file()) {
350 		puts("Failed to read control FDT\n");
351 		return -1;
352 	}
353 # endif
354 	/* Allow the early environment to override the fdt address */
355 	gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
356 						(uintptr_t)gd->fdt_blob);
357 #endif
358 	return 0;
359 }
360 
361 /* Get the top of usable RAM */
362 __weak ulong board_get_usable_ram_top(ulong total_size)
363 {
364 #ifdef CONFIG_SYS_SDRAM_BASE
365 	/*
366 	 * Detect whether we have so much RAM it goes past the end of our
367 	 * 32-bit address space. If so, clip the usable RAM so it doesn't.
368 	 */
369 	if (gd->ram_top < CONFIG_SYS_SDRAM_BASE)
370 		/*
371 		 * Will wrap back to top of 32-bit space when reservations
372 		 * are made.
373 		 */
374 		return 0;
375 #endif
376 	return gd->ram_top;
377 }
378 
379 static int setup_dest_addr(void)
380 {
381 	debug("Monitor len: %08lX\n", gd->mon_len);
382 	/*
383 	 * Ram is setup, size stored in gd !!
384 	 */
385 	debug("Ram size: %08lX\n", (ulong)gd->ram_size);
386 #if defined(CONFIG_SYS_MEM_TOP_HIDE)
387 	/*
388 	 * Subtract specified amount of memory to hide so that it won't
389 	 * get "touched" at all by U-Boot. By fixing up gd->ram_size
390 	 * the Linux kernel should now get passed the now "corrected"
391 	 * memory size and won't touch it either. This should work
392 	 * for arch/ppc and arch/powerpc. Only Linux board ports in
393 	 * arch/powerpc with bootwrapper support, that recalculate the
394 	 * memory size from the SDRAM controller setup will have to
395 	 * get fixed.
396 	 */
397 	gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
398 #endif
399 #ifdef CONFIG_SYS_SDRAM_BASE
400 	gd->ram_top = CONFIG_SYS_SDRAM_BASE;
401 #endif
402 	gd->ram_top += get_effective_memsize();
403 	gd->ram_top = board_get_usable_ram_top(gd->mon_len);
404 	gd->relocaddr = gd->ram_top;
405 	debug("Ram top: %08lX\n", (ulong)gd->ram_top);
406 #if defined(CONFIG_MP) && (defined(CONFIG_MPC86xx) || defined(CONFIG_E500))
407 	/*
408 	 * We need to make sure the location we intend to put secondary core
409 	 * boot code is reserved and not used by any part of u-boot
410 	 */
411 	if (gd->relocaddr > determine_mp_bootpg(NULL)) {
412 		gd->relocaddr = determine_mp_bootpg(NULL);
413 		debug("Reserving MP boot page to %08lx\n", gd->relocaddr);
414 	}
415 #endif
416 	return 0;
417 }
418 
419 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
420 static int reserve_logbuffer(void)
421 {
422 	/* reserve kernel log buffer */
423 	gd->relocaddr -= LOGBUFF_RESERVE;
424 	debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
425 		gd->relocaddr);
426 	return 0;
427 }
428 #endif
429 
430 #ifdef CONFIG_PRAM
431 /* reserve protected RAM */
432 static int reserve_pram(void)
433 {
434 	ulong reg;
435 
436 	reg = getenv_ulong("pram", 10, CONFIG_PRAM);
437 	gd->relocaddr -= (reg << 10);		/* size is in kB */
438 	debug("Reserving %ldk for protected RAM at %08lx\n", reg,
439 	      gd->relocaddr);
440 	return 0;
441 }
442 #endif /* CONFIG_PRAM */
443 
444 /* Round memory pointer down to next 4 kB limit */
445 static int reserve_round_4k(void)
446 {
447 	gd->relocaddr &= ~(4096 - 1);
448 	return 0;
449 }
450 
451 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
452 		defined(CONFIG_ARM)
453 static int reserve_mmu(void)
454 {
455 	/* reserve TLB table */
456 	gd->arch.tlb_size = PGTABLE_SIZE;
457 	gd->relocaddr -= gd->arch.tlb_size;
458 
459 	/* round down to next 64 kB limit */
460 	gd->relocaddr &= ~(0x10000 - 1);
461 
462 	gd->arch.tlb_addr = gd->relocaddr;
463 	debug("TLB table from %08lx to %08lx\n", gd->arch.tlb_addr,
464 	      gd->arch.tlb_addr + gd->arch.tlb_size);
465 	return 0;
466 }
467 #endif
468 
469 #ifdef CONFIG_LCD
470 static int reserve_lcd(void)
471 {
472 #ifdef CONFIG_FB_ADDR
473 	gd->fb_base = CONFIG_FB_ADDR;
474 #else
475 	/* reserve memory for LCD display (always full pages) */
476 	gd->relocaddr = lcd_setmem(gd->relocaddr);
477 	gd->fb_base = gd->relocaddr;
478 #endif /* CONFIG_FB_ADDR */
479 	return 0;
480 }
481 #endif /* CONFIG_LCD */
482 
483 static int reserve_trace(void)
484 {
485 #ifdef CONFIG_TRACE
486 	gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE;
487 	gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE);
488 	debug("Reserving %dk for trace data at: %08lx\n",
489 	      CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr);
490 #endif
491 
492 	return 0;
493 }
494 
495 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
496 		!defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
497 		!defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
498 static int reserve_video(void)
499 {
500 	/* reserve memory for video display (always full pages) */
501 	gd->relocaddr = video_setmem(gd->relocaddr);
502 	gd->fb_base = gd->relocaddr;
503 
504 	return 0;
505 }
506 #endif
507 
508 static int reserve_uboot(void)
509 {
510 	/*
511 	 * reserve memory for U-Boot code, data & bss
512 	 * round down to next 4 kB limit
513 	 */
514 	gd->relocaddr -= gd->mon_len;
515 	gd->relocaddr &= ~(4096 - 1);
516 #ifdef CONFIG_E500
517 	/* round down to next 64 kB limit so that IVPR stays aligned */
518 	gd->relocaddr &= ~(65536 - 1);
519 #endif
520 
521 	debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10,
522 	      gd->relocaddr);
523 
524 	gd->start_addr_sp = gd->relocaddr;
525 
526 	return 0;
527 }
528 
529 #ifndef CONFIG_SPL_BUILD
530 /* reserve memory for malloc() area */
531 static int reserve_malloc(void)
532 {
533 	gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN;
534 	debug("Reserving %dk for malloc() at: %08lx\n",
535 			TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
536 	return 0;
537 }
538 
539 /* (permanently) allocate a Board Info struct */
540 static int reserve_board(void)
541 {
542 	if (!gd->bd) {
543 		gd->start_addr_sp -= sizeof(bd_t);
544 		gd->bd = (bd_t *)map_sysmem(gd->start_addr_sp, sizeof(bd_t));
545 		memset(gd->bd, '\0', sizeof(bd_t));
546 		debug("Reserving %zu Bytes for Board Info at: %08lx\n",
547 		      sizeof(bd_t), gd->start_addr_sp);
548 	}
549 	return 0;
550 }
551 #endif
552 
553 static int setup_machine(void)
554 {
555 #ifdef CONFIG_MACH_TYPE
556 	gd->bd->bi_arch_number = CONFIG_MACH_TYPE; /* board id for Linux */
557 #endif
558 	return 0;
559 }
560 
561 static int reserve_global_data(void)
562 {
563 	gd->start_addr_sp -= sizeof(gd_t);
564 	gd->new_gd = (gd_t *)map_sysmem(gd->start_addr_sp, sizeof(gd_t));
565 	debug("Reserving %zu Bytes for Global Data at: %08lx\n",
566 			sizeof(gd_t), gd->start_addr_sp);
567 	return 0;
568 }
569 
570 static int reserve_fdt(void)
571 {
572 	/*
573 	 * If the device tree is sitting immediate above our image then we
574 	 * must relocate it. If it is embedded in the data section, then it
575 	 * will be relocated with other data.
576 	 */
577 	if (gd->fdt_blob) {
578 		gd->fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
579 
580 		gd->start_addr_sp -= gd->fdt_size;
581 		gd->new_fdt = map_sysmem(gd->start_addr_sp, gd->fdt_size);
582 		debug("Reserving %lu Bytes for FDT at: %08lx\n",
583 		      gd->fdt_size, gd->start_addr_sp);
584 	}
585 
586 	return 0;
587 }
588 
589 int arch_reserve_stacks(void)
590 {
591 	return 0;
592 }
593 
594 static int reserve_stacks(void)
595 {
596 	/* make stack pointer 16-byte aligned */
597 	gd->start_addr_sp -= 16;
598 	gd->start_addr_sp &= ~0xf;
599 
600 	/*
601 	 * let the architecture specific code tailor gd->start_addr_sp and
602 	 * gd->irq_sp
603 	 */
604 	return arch_reserve_stacks();
605 }
606 
607 static int display_new_sp(void)
608 {
609 	debug("New Stack Pointer is: %08lx\n", gd->start_addr_sp);
610 
611 	return 0;
612 }
613 
614 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
615 static int setup_board_part1(void)
616 {
617 	bd_t *bd = gd->bd;
618 
619 	/*
620 	 * Save local variables to board info struct
621 	 */
622 
623 	bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;	/* start of memory */
624 	bd->bi_memsize = gd->ram_size;			/* size in bytes */
625 
626 #ifdef CONFIG_SYS_SRAM_BASE
627 	bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;	/* start of SRAM */
628 	bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;		/* size  of SRAM */
629 #endif
630 
631 #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || defined(CONFIG_5xx) || \
632 		defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
633 	bd->bi_immr_base = CONFIG_SYS_IMMR;	/* base  of IMMR register     */
634 #endif
635 #if defined(CONFIG_MPC5xxx) || defined(CONFIG_M68K)
636 	bd->bi_mbar_base = CONFIG_SYS_MBAR;	/* base of internal registers */
637 #endif
638 #if defined(CONFIG_MPC83xx)
639 	bd->bi_immrbar = CONFIG_SYS_IMMR;
640 #endif
641 
642 	return 0;
643 }
644 
645 static int setup_board_part2(void)
646 {
647 	bd_t *bd = gd->bd;
648 
649 	bd->bi_intfreq = gd->cpu_clk;	/* Internal Freq, in Hz */
650 	bd->bi_busfreq = gd->bus_clk;	/* Bus Freq,      in Hz */
651 #if defined(CONFIG_CPM2)
652 	bd->bi_cpmfreq = gd->arch.cpm_clk;
653 	bd->bi_brgfreq = gd->arch.brg_clk;
654 	bd->bi_sccfreq = gd->arch.scc_clk;
655 	bd->bi_vco = gd->arch.vco_out;
656 #endif /* CONFIG_CPM2 */
657 #if defined(CONFIG_MPC512X)
658 	bd->bi_ipsfreq = gd->arch.ips_clk;
659 #endif /* CONFIG_MPC512X */
660 #if defined(CONFIG_MPC5xxx)
661 	bd->bi_ipbfreq = gd->arch.ipb_clk;
662 	bd->bi_pcifreq = gd->pci_clk;
663 #endif /* CONFIG_MPC5xxx */
664 #if defined(CONFIG_M68K) && defined(CONFIG_PCI)
665 	bd->bi_pcifreq = gd->pci_clk;
666 #endif
667 #if defined(CONFIG_EXTRA_CLOCK)
668 	bd->bi_inpfreq = gd->arch.inp_clk;	/* input Freq in Hz */
669 	bd->bi_vcofreq = gd->arch.vco_clk;	/* vco Freq in Hz */
670 	bd->bi_flbfreq = gd->arch.flb_clk;	/* flexbus Freq in Hz */
671 #endif
672 
673 	return 0;
674 }
675 #endif
676 
677 #ifdef CONFIG_SYS_EXTBDINFO
678 static int setup_board_extra(void)
679 {
680 	bd_t *bd = gd->bd;
681 
682 	strncpy((char *) bd->bi_s_version, "1.2", sizeof(bd->bi_s_version));
683 	strncpy((char *) bd->bi_r_version, U_BOOT_VERSION,
684 		sizeof(bd->bi_r_version));
685 
686 	bd->bi_procfreq = gd->cpu_clk;	/* Processor Speed, In Hz */
687 	bd->bi_plb_busfreq = gd->bus_clk;
688 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
689 		defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
690 		defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
691 	bd->bi_pci_busfreq = get_PCI_freq();
692 	bd->bi_opbfreq = get_OPB_freq();
693 #elif defined(CONFIG_XILINX_405)
694 	bd->bi_pci_busfreq = get_PCI_freq();
695 #endif
696 
697 	return 0;
698 }
699 #endif
700 
701 #ifdef CONFIG_POST
702 static int init_post(void)
703 {
704 	post_bootmode_init();
705 	post_run(NULL, POST_ROM | post_bootmode_get(0));
706 
707 	return 0;
708 }
709 #endif
710 
711 static int setup_dram_config(void)
712 {
713 	/* Ram is board specific, so move it to board code ... */
714 	dram_init_banksize();
715 
716 	return 0;
717 }
718 
719 static int reloc_fdt(void)
720 {
721 	if (gd->new_fdt) {
722 		memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size);
723 		gd->fdt_blob = gd->new_fdt;
724 	}
725 
726 	return 0;
727 }
728 
729 static int setup_reloc(void)
730 {
731 #ifdef CONFIG_SYS_TEXT_BASE
732 	gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
733 #ifdef CONFIG_M68K
734 	/*
735 	 * On all ColdFire arch cpu, monitor code starts always
736 	 * just after the default vector table location, so at 0x400
737 	 */
738 	gd->reloc_off = gd->relocaddr - (CONFIG_SYS_TEXT_BASE + 0x400);
739 #endif
740 #endif
741 	memcpy(gd->new_gd, (char *)gd, sizeof(gd_t));
742 
743 	debug("Relocation Offset is: %08lx\n", gd->reloc_off);
744 	debug("Relocating to %08lx, new gd at %08lx, sp at %08lx\n",
745 	      gd->relocaddr, (ulong)map_to_sysmem(gd->new_gd),
746 	      gd->start_addr_sp);
747 
748 	return 0;
749 }
750 
751 /* ARM calls relocate_code from its crt0.S */
752 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
753 
754 static int jump_to_copy(void)
755 {
756 	/*
757 	 * x86 is special, but in a nice way. It uses a trampoline which
758 	 * enables the dcache if possible.
759 	 *
760 	 * For now, other archs use relocate_code(), which is implemented
761 	 * similarly for all archs. When we do generic relocation, hopefully
762 	 * we can make all archs enable the dcache prior to relocation.
763 	 */
764 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
765 	/*
766 	 * SDRAM and console are now initialised. The final stack can now
767 	 * be setup in SDRAM. Code execution will continue in Flash, but
768 	 * with the stack in SDRAM and Global Data in temporary memory
769 	 * (CPU cache)
770 	 */
771 	board_init_f_r_trampoline(gd->start_addr_sp);
772 #else
773 	relocate_code(gd->start_addr_sp, gd->new_gd, gd->relocaddr);
774 #endif
775 
776 	return 0;
777 }
778 #endif
779 
780 /* Record the board_init_f() bootstage (after arch_cpu_init()) */
781 static int mark_bootstage(void)
782 {
783 	bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
784 
785 	return 0;
786 }
787 
788 static int initf_malloc(void)
789 {
790 #ifdef CONFIG_SYS_MALLOC_F_LEN
791 	assert(gd->malloc_base);	/* Set up by crt0.S */
792 	gd->malloc_limit = gd->malloc_base + CONFIG_SYS_MALLOC_F_LEN;
793 	gd->malloc_ptr = 0;
794 #endif
795 
796 	return 0;
797 }
798 
799 static int initf_dm(void)
800 {
801 #if defined(CONFIG_DM) && defined(CONFIG_SYS_MALLOC_F_LEN)
802 	int ret;
803 
804 	ret = dm_init_and_scan(true);
805 	if (ret)
806 		return ret;
807 #endif
808 
809 	return 0;
810 }
811 
812 /* Architecture-specific memory reservation */
813 __weak int reserve_arch(void)
814 {
815 	return 0;
816 }
817 
818 static init_fnc_t init_sequence_f[] = {
819 #ifdef CONFIG_SANDBOX
820 	setup_ram_buf,
821 #endif
822 	setup_mon_len,
823 	setup_fdt,
824 #ifdef CONFIG_TRACE
825 	trace_early_init,
826 #endif
827 	initf_malloc,
828 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
829 	/* TODO: can this go into arch_cpu_init()? */
830 	probecpu,
831 #endif
832 	arch_cpu_init,		/* basic arch cpu dependent setup */
833 	mark_bootstage,
834 #ifdef CONFIG_OF_CONTROL
835 	fdtdec_check_fdt,
836 #endif
837 	initf_dm,
838 #if defined(CONFIG_BOARD_EARLY_INIT_F)
839 	board_early_init_f,
840 #endif
841 	/* TODO: can any of this go into arch_cpu_init()? */
842 #if defined(CONFIG_PPC) && !defined(CONFIG_8xx_CPUCLK_DEFAULT)
843 	get_clocks,		/* get CPU and bus clocks (etc.) */
844 #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \
845 		&& !defined(CONFIG_TQM885D)
846 	adjust_sdram_tbs_8xx,
847 #endif
848 	/* TODO: can we rename this to timer_init()? */
849 	init_timebase,
850 #endif
851 #if defined(CONFIG_ARM) || defined(CONFIG_MIPS) || defined(CONFIG_BLACKFIN)
852 	timer_init,		/* initialize timer */
853 #endif
854 #ifdef CONFIG_SYS_ALLOC_DPRAM
855 #if !defined(CONFIG_CPM2)
856 	dpram_init,
857 #endif
858 #endif
859 #if defined(CONFIG_BOARD_POSTCLK_INIT)
860 	board_postclk_init,
861 #endif
862 #ifdef CONFIG_FSL_ESDHC
863 	get_clocks,
864 #endif
865 #ifdef CONFIG_M68K
866 	get_clocks,
867 #endif
868 	env_init,		/* initialize environment */
869 #if defined(CONFIG_8xx_CPUCLK_DEFAULT)
870 	/* get CPU and bus clocks according to the environment variable */
871 	get_clocks_866,
872 	/* adjust sdram refresh rate according to the new clock */
873 	sdram_adjust_866,
874 	init_timebase,
875 #endif
876 	init_baud_rate,		/* initialze baudrate settings */
877 	serial_init,		/* serial communications setup */
878 	console_init_f,		/* stage 1 init of console */
879 #ifdef CONFIG_SANDBOX
880 	sandbox_early_getopt_check,
881 #endif
882 #ifdef CONFIG_OF_CONTROL
883 	fdtdec_prepare_fdt,
884 #endif
885 	display_options,	/* say that we are here */
886 	display_text_info,	/* show debugging info if required */
887 #if defined(CONFIG_MPC8260)
888 	prt_8260_rsr,
889 	prt_8260_clks,
890 #endif /* CONFIG_MPC8260 */
891 #if defined(CONFIG_MPC83xx)
892 	prt_83xx_rsr,
893 #endif
894 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
895 	checkcpu,
896 #endif
897 	print_cpuinfo,		/* display cpu info (and speed) */
898 #if defined(CONFIG_MPC5xxx)
899 	prt_mpc5xxx_clks,
900 #endif /* CONFIG_MPC5xxx */
901 #if defined(CONFIG_DISPLAY_BOARDINFO)
902 	show_board_info,
903 #endif
904 	INIT_FUNC_WATCHDOG_INIT
905 #if defined(CONFIG_MISC_INIT_F)
906 	misc_init_f,
907 #endif
908 	INIT_FUNC_WATCHDOG_RESET
909 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
910 	init_func_i2c,
911 #endif
912 #if defined(CONFIG_HARD_SPI)
913 	init_func_spi,
914 #endif
915 	announce_dram_init,
916 	/* TODO: unify all these dram functions? */
917 #if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32)
918 	dram_init,		/* configure available RAM banks */
919 #endif
920 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_M68K)
921 	init_func_ram,
922 #endif
923 #ifdef CONFIG_POST
924 	post_init_f,
925 #endif
926 	INIT_FUNC_WATCHDOG_RESET
927 #if defined(CONFIG_SYS_DRAM_TEST)
928 	testdram,
929 #endif /* CONFIG_SYS_DRAM_TEST */
930 	INIT_FUNC_WATCHDOG_RESET
931 
932 #ifdef CONFIG_POST
933 	init_post,
934 #endif
935 	INIT_FUNC_WATCHDOG_RESET
936 	/*
937 	 * Now that we have DRAM mapped and working, we can
938 	 * relocate the code and continue running from DRAM.
939 	 *
940 	 * Reserve memory at end of RAM for (top down in that order):
941 	 *  - area that won't get touched by U-Boot and Linux (optional)
942 	 *  - kernel log buffer
943 	 *  - protected RAM
944 	 *  - LCD framebuffer
945 	 *  - monitor code
946 	 *  - board info struct
947 	 */
948 	setup_dest_addr,
949 #if defined(CONFIG_BLACKFIN) || defined(CONFIG_NIOS2)
950 	/* Blackfin u-boot monitor should be on top of the ram */
951 	reserve_uboot,
952 #endif
953 #if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
954 	reserve_logbuffer,
955 #endif
956 #ifdef CONFIG_PRAM
957 	reserve_pram,
958 #endif
959 	reserve_round_4k,
960 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) && \
961 		defined(CONFIG_ARM)
962 	reserve_mmu,
963 #endif
964 #ifdef CONFIG_LCD
965 	reserve_lcd,
966 #endif
967 	reserve_trace,
968 	/* TODO: Why the dependency on CONFIG_8xx? */
969 #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) && \
970 		!defined(CONFIG_ARM) && !defined(CONFIG_X86) && \
971 		!defined(CONFIG_BLACKFIN) && !defined(CONFIG_M68K)
972 	reserve_video,
973 #endif
974 #if !defined(CONFIG_BLACKFIN) && !defined(CONFIG_NIOS2)
975 	reserve_uboot,
976 #endif
977 #ifndef CONFIG_SPL_BUILD
978 	reserve_malloc,
979 	reserve_board,
980 #endif
981 	setup_machine,
982 	reserve_global_data,
983 	reserve_fdt,
984 	reserve_arch,
985 	reserve_stacks,
986 	setup_dram_config,
987 	show_dram_config,
988 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
989 	setup_board_part1,
990 	INIT_FUNC_WATCHDOG_RESET
991 	setup_board_part2,
992 #endif
993 	display_new_sp,
994 #ifdef CONFIG_SYS_EXTBDINFO
995 	setup_board_extra,
996 #endif
997 	INIT_FUNC_WATCHDOG_RESET
998 	reloc_fdt,
999 	setup_reloc,
1000 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
1001 	copy_uboot_to_ram,
1002 	clear_bss,
1003 	do_elf_reloc_fixups,
1004 #endif
1005 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1006 	jump_to_copy,
1007 #endif
1008 	NULL,
1009 };
1010 
1011 void board_init_f(ulong boot_flags)
1012 {
1013 #ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA
1014 	/*
1015 	 * For some archtectures, global data is initialized and used before
1016 	 * calling this function. The data should be preserved. For others,
1017 	 * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack
1018 	 * here to host global data until relocation.
1019 	 */
1020 	gd_t data;
1021 
1022 	gd = &data;
1023 
1024 	/*
1025 	 * Clear global data before it is accessed at debug print
1026 	 * in initcall_run_list. Otherwise the debug print probably
1027 	 * get the wrong vaule of gd->have_console.
1028 	 */
1029 	zero_global_data();
1030 #endif
1031 
1032 	gd->flags = boot_flags;
1033 	gd->have_console = 0;
1034 
1035 	if (initcall_run_list(init_sequence_f))
1036 		hang();
1037 
1038 #if !defined(CONFIG_ARM) && !defined(CONFIG_SANDBOX)
1039 	/* NOTREACHED - jump_to_copy() does not return */
1040 	hang();
1041 #endif
1042 }
1043 
1044 #if defined(CONFIG_X86) || defined(CONFIG_ARC)
1045 /*
1046  * For now this code is only used on x86.
1047  *
1048  * init_sequence_f_r is the list of init functions which are run when
1049  * U-Boot is executing from Flash with a semi-limited 'C' environment.
1050  * The following limitations must be considered when implementing an
1051  * '_f_r' function:
1052  *  - 'static' variables are read-only
1053  *  - Global Data (gd->xxx) is read/write
1054  *
1055  * The '_f_r' sequence must, as a minimum, copy U-Boot to RAM (if
1056  * supported).  It _should_, if possible, copy global data to RAM and
1057  * initialise the CPU caches (to speed up the relocation process)
1058  *
1059  * NOTE: At present only x86 uses this route, but it is intended that
1060  * all archs will move to this when generic relocation is implemented.
1061  */
1062 static init_fnc_t init_sequence_f_r[] = {
1063 	init_cache_f_r,
1064 
1065 	NULL,
1066 };
1067 
1068 void board_init_f_r(void)
1069 {
1070 	if (initcall_run_list(init_sequence_f_r))
1071 		hang();
1072 
1073 	/*
1074 	 * U-Boot has been copied into SDRAM, the BSS has been cleared etc.
1075 	 * Transfer execution from Flash to RAM by calculating the address
1076 	 * of the in-RAM copy of board_init_r() and calling it
1077 	 */
1078 	(board_init_r + gd->reloc_off)((gd_t *)gd, gd->relocaddr);
1079 
1080 	/* NOTREACHED - board_init_r() does not return */
1081 	hang();
1082 }
1083 #endif /* CONFIG_X86 */
1084 
1085 #ifndef CONFIG_X86
1086 ulong board_init_f_mem(ulong top)
1087 {
1088 	/* Leave space for the stack we are running with now */
1089 	top -= 0x40;
1090 
1091 	top -= sizeof(struct global_data);
1092 	top = ALIGN(top, 16);
1093 	gd = (struct global_data *)top;
1094 	memset((void *)gd, '\0', sizeof(*gd));
1095 
1096 #ifdef CONFIG_SYS_MALLOC_F_LEN
1097 	top -= CONFIG_SYS_MALLOC_F_LEN;
1098 	gd->malloc_base = top;
1099 #endif
1100 
1101 	return top;
1102 }
1103 #endif /* !CONFIG_X86 */
1104