xref: /openbmc/u-boot/arch/powerpc/cpu/mpc85xx/fdt.c (revision 004d0091)
1 /*
2  * Copyright 2007-2011 Freescale Semiconductor, Inc.
3  *
4  * (C) Copyright 2000
5  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6  *
7  * SPDX-License-Identifier:	GPL-2.0+
8  */
9 
10 #include <common.h>
11 #include <environment.h>
12 #include <linux/libfdt.h>
13 #include <fdt_support.h>
14 #include <asm/processor.h>
15 #include <linux/ctype.h>
16 #include <asm/io.h>
17 #include <asm/fsl_fdt.h>
18 #include <asm/fsl_portals.h>
19 #include <fsl_qbman.h>
20 #include <hwconfig.h>
21 #ifdef CONFIG_FSL_ESDHC
22 #include <fsl_esdhc.h>
23 #endif
24 #ifdef CONFIG_SYS_DPAA_FMAN
25 #include <fsl_fman.h>
26 #endif
27 
28 DECLARE_GLOBAL_DATA_PTR;
29 
30 extern void ft_qe_setup(void *blob);
31 extern void ft_fixup_num_cores(void *blob);
32 extern void ft_srio_setup(void *blob);
33 
34 #ifdef CONFIG_MP
35 #include "mp.h"
36 
37 void ft_fixup_cpu(void *blob, u64 memory_limit)
38 {
39 	int off;
40 	phys_addr_t spin_tbl_addr = get_spin_phys_addr();
41 	u32 bootpg = determine_mp_bootpg(NULL);
42 	u32 id = get_my_id();
43 	const char *enable_method;
44 #if defined(T1040_TDM_QUIRK_CCSR_BASE)
45 	int ret;
46 	int tdm_hwconfig_enabled = 0;
47 	char buffer[HWCONFIG_BUFFER_SIZE] = {0};
48 #endif
49 
50 	off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
51 	while (off != -FDT_ERR_NOTFOUND) {
52 		u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
53 
54 		if (reg) {
55 			u32 phys_cpu_id = thread_to_core(*reg);
56 			u64 val = phys_cpu_id * SIZE_BOOT_ENTRY + spin_tbl_addr;
57 			val = cpu_to_fdt64(val);
58 			if (*reg == id) {
59 				fdt_setprop_string(blob, off, "status",
60 								"okay");
61 			} else {
62 				fdt_setprop_string(blob, off, "status",
63 								"disabled");
64 			}
65 
66 			if (hold_cores_in_reset(0)) {
67 #ifdef CONFIG_FSL_CORENET
68 				/* Cores held in reset, use BRR to release */
69 				enable_method = "fsl,brr-holdoff";
70 #else
71 				/* Cores held in reset, use EEBPCR to release */
72 				enable_method = "fsl,eebpcr-holdoff";
73 #endif
74 			} else {
75 				/* Cores out of reset and in a spin-loop */
76 				enable_method = "spin-table";
77 
78 				fdt_setprop(blob, off, "cpu-release-addr",
79 						&val, sizeof(val));
80 			}
81 
82 			fdt_setprop_string(blob, off, "enable-method",
83 							enable_method);
84 		} else {
85 			printf ("cpu NULL\n");
86 		}
87 		off = fdt_node_offset_by_prop_value(blob, off,
88 				"device_type", "cpu", 4);
89 	}
90 
91 #if defined(T1040_TDM_QUIRK_CCSR_BASE)
92 #define	CONFIG_MEM_HOLE_16M	0x1000000
93 	/*
94 	 * Extract hwconfig from environment.
95 	 * Search for tdm entry in hwconfig.
96 	 */
97 	ret = env_get_f("hwconfig", buffer, sizeof(buffer));
98 	if (ret > 0)
99 		tdm_hwconfig_enabled = hwconfig_f("tdm", buffer);
100 
101 	/* Reserve the memory hole created by TDM LAW, so OSes dont use it */
102 	if (tdm_hwconfig_enabled) {
103 		off = fdt_add_mem_rsv(blob, T1040_TDM_QUIRK_CCSR_BASE,
104 				      CONFIG_MEM_HOLE_16M);
105 		if (off < 0)
106 			printf("Failed  to reserve memory for tdm: %s\n",
107 			       fdt_strerror(off));
108 	}
109 #endif
110 
111 	/* Reserve the boot page so OSes dont use it */
112 	if ((u64)bootpg < memory_limit) {
113 		off = fdt_add_mem_rsv(blob, bootpg, (u64)4096);
114 		if (off < 0)
115 			printf("Failed to reserve memory for bootpg: %s\n",
116 				fdt_strerror(off));
117 	}
118 
119 #ifndef CONFIG_MPC8xxx_DISABLE_BPTR
120 	/*
121 	 * Reserve the default boot page so OSes dont use it.
122 	 * The default boot page is always mapped to bootpg above using
123 	 * boot page translation.
124 	 */
125 	if (0xfffff000ull < memory_limit) {
126 		off = fdt_add_mem_rsv(blob, 0xfffff000ull, (u64)4096);
127 		if (off < 0) {
128 			printf("Failed to reserve memory for 0xfffff000: %s\n",
129 				fdt_strerror(off));
130 		}
131 	}
132 #endif
133 
134 	/* Reserve spin table page */
135 	if (spin_tbl_addr < memory_limit) {
136 		off = fdt_add_mem_rsv(blob,
137 			(spin_tbl_addr & ~0xffful), 4096);
138 		if (off < 0)
139 			printf("Failed to reserve memory for spin table: %s\n",
140 				fdt_strerror(off));
141 	}
142 #ifdef CONFIG_DEEP_SLEEP
143 #ifdef CONFIG_SPL_MMC_BOOT
144 	off = fdt_add_mem_rsv(blob, CONFIG_SYS_MMC_U_BOOT_START,
145 		CONFIG_SYS_MMC_U_BOOT_SIZE);
146 	if (off < 0)
147 		printf("Failed to reserve memory for SD deep sleep: %s\n",
148 		       fdt_strerror(off));
149 #elif defined(CONFIG_SPL_SPI_BOOT)
150 	off = fdt_add_mem_rsv(blob, CONFIG_SYS_SPI_FLASH_U_BOOT_START,
151 		CONFIG_SYS_SPI_FLASH_U_BOOT_SIZE);
152 	if (off < 0)
153 		printf("Failed to reserve memory for SPI deep sleep: %s\n",
154 		       fdt_strerror(off));
155 #endif
156 #endif
157 }
158 #endif
159 
160 #ifdef CONFIG_SYS_FSL_CPC
161 static inline void ft_fixup_l3cache(void *blob, int off)
162 {
163 	u32 line_size, num_ways, size, num_sets;
164 	cpc_corenet_t *cpc = (void *)CONFIG_SYS_FSL_CPC_ADDR;
165 	u32 cfg0 = in_be32(&cpc->cpccfg0);
166 
167 	size = CPC_CFG0_SZ_K(cfg0) * 1024 * CONFIG_SYS_NUM_CPC;
168 	num_ways = CPC_CFG0_NUM_WAYS(cfg0);
169 	line_size = CPC_CFG0_LINE_SZ(cfg0);
170 	num_sets = size / (line_size * num_ways);
171 
172 	fdt_setprop(blob, off, "cache-unified", NULL, 0);
173 	fdt_setprop_cell(blob, off, "cache-block-size", line_size);
174 	fdt_setprop_cell(blob, off, "cache-size", size);
175 	fdt_setprop_cell(blob, off, "cache-sets", num_sets);
176 	fdt_setprop_cell(blob, off, "cache-level", 3);
177 #ifdef CONFIG_SYS_CACHE_STASHING
178 	fdt_setprop_cell(blob, off, "cache-stash-id", 1);
179 #endif
180 }
181 #else
182 #define ft_fixup_l3cache(x, y)
183 #endif
184 
185 #if defined(CONFIG_L2_CACHE) || \
186 	defined(CONFIG_BACKSIDE_L2_CACHE) || \
187 	defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2)
188 static inline void ft_fixup_l2cache_compatible(void *blob, int off)
189 {
190 	int len;
191 	struct cpu_type *cpu = identify_cpu(SVR_SOC_VER(get_svr()));
192 
193 	if (cpu) {
194 		char buf[40];
195 
196 		if (isdigit(cpu->name[0])) {
197 			/* MPCxxxx, where xxxx == 4-digit number */
198 			len = sprintf(buf, "fsl,mpc%s-l2-cache-controller",
199 				cpu->name) + 1;
200 		} else {
201 			/* Pxxxx or Txxxx, where xxxx == 4-digit number */
202 			len = sprintf(buf, "fsl,%c%s-l2-cache-controller",
203 			tolower(cpu->name[0]), cpu->name + 1) + 1;
204 		}
205 
206 		/*
207 		 * append "cache" after the NULL character that the previous
208 		 * sprintf wrote.  This is how a device tree stores multiple
209 		 * strings in a property.
210 		 */
211 		len += sprintf(buf + len, "cache") + 1;
212 
213 		fdt_setprop(blob, off, "compatible", buf, len);
214 	}
215 }
216 #endif
217 
218 #if defined(CONFIG_L2_CACHE)
219 /* return size in kilobytes */
220 static inline u32 l2cache_size(void)
221 {
222 	volatile ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR;
223 	volatile u32 l2siz_field = (l2cache->l2ctl >> 28) & 0x3;
224 	u32 ver = SVR_SOC_VER(get_svr());
225 
226 	switch (l2siz_field) {
227 	case 0x0:
228 		break;
229 	case 0x1:
230 		if (ver == SVR_8540 || ver == SVR_8560   ||
231 		    ver == SVR_8541 || ver == SVR_8555)
232 			return 128;
233 		else
234 			return 256;
235 		break;
236 	case 0x2:
237 		if (ver == SVR_8540 || ver == SVR_8560   ||
238 		    ver == SVR_8541 || ver == SVR_8555)
239 			return 256;
240 		else
241 			return 512;
242 		break;
243 	case 0x3:
244 		return 1024;
245 		break;
246 	}
247 
248 	return 0;
249 }
250 
251 static inline void ft_fixup_l2cache(void *blob)
252 {
253 	int off;
254 	u32 *ph;
255 
256 	const u32 line_size = 32;
257 	const u32 num_ways = 8;
258 	const u32 size = l2cache_size() * 1024;
259 	const u32 num_sets = size / (line_size * num_ways);
260 
261 	off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
262 	if (off < 0) {
263 		debug("no cpu node fount\n");
264 		return;
265 	}
266 
267 	ph = (u32 *)fdt_getprop(blob, off, "next-level-cache", 0);
268 
269 	if (ph == NULL) {
270 		debug("no next-level-cache property\n");
271 		return ;
272 	}
273 
274 	off = fdt_node_offset_by_phandle(blob, *ph);
275 	if (off < 0) {
276 		printf("%s: %s\n", __func__, fdt_strerror(off));
277 		return ;
278 	}
279 
280 	ft_fixup_l2cache_compatible(blob, off);
281 	fdt_setprop(blob, off, "cache-unified", NULL, 0);
282 	fdt_setprop_cell(blob, off, "cache-block-size", line_size);
283 	fdt_setprop_cell(blob, off, "cache-size", size);
284 	fdt_setprop_cell(blob, off, "cache-sets", num_sets);
285 	fdt_setprop_cell(blob, off, "cache-level", 2);
286 
287 	/* we dont bother w/L3 since no platform of this type has one */
288 }
289 #elif defined(CONFIG_BACKSIDE_L2_CACHE) || \
290 	defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2)
291 static inline void ft_fixup_l2cache(void *blob)
292 {
293 	int off, l2_off, l3_off = -1;
294 	u32 *ph;
295 #ifdef	CONFIG_BACKSIDE_L2_CACHE
296 	u32 l2cfg0 = mfspr(SPRN_L2CFG0);
297 #else
298 	struct ccsr_cluster_l2 *l2cache =
299 		(struct ccsr_cluster_l2 __iomem *)(CONFIG_SYS_FSL_CLUSTER_1_L2);
300 	u32 l2cfg0 = in_be32(&l2cache->l2cfg0);
301 #endif
302 	u32 size, line_size, num_ways, num_sets;
303 	int has_l2 = 1;
304 
305 	/* P2040/P2040E has no L2, so dont set any L2 props */
306 	if (SVR_SOC_VER(get_svr()) == SVR_P2040)
307 		has_l2 = 0;
308 
309 	size = (l2cfg0 & 0x3fff) * 64 * 1024;
310 	num_ways = ((l2cfg0 >> 14) & 0x1f) + 1;
311 	line_size = (((l2cfg0 >> 23) & 0x3) + 1) * 32;
312 	num_sets = size / (line_size * num_ways);
313 
314 	off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
315 
316 	while (off != -FDT_ERR_NOTFOUND) {
317 		ph = (u32 *)fdt_getprop(blob, off, "next-level-cache", 0);
318 
319 		if (ph == NULL) {
320 			debug("no next-level-cache property\n");
321 			goto next;
322 		}
323 
324 		l2_off = fdt_node_offset_by_phandle(blob, *ph);
325 		if (l2_off < 0) {
326 			printf("%s: %s\n", __func__, fdt_strerror(off));
327 			goto next;
328 		}
329 
330 		if (has_l2) {
331 #ifdef CONFIG_SYS_CACHE_STASHING
332 			u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
333 #if defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2) && defined(CONFIG_E6500)
334 			/* Only initialize every eighth thread */
335 			if (reg && !((*reg) % 8)) {
336 				fdt_setprop_cell(blob, l2_off, "cache-stash-id",
337 						 (*reg / 4) + 32 + 1);
338 			}
339 #else
340 			if (reg) {
341 				fdt_setprop_cell(blob, l2_off, "cache-stash-id",
342 						 (*reg * 2) + 32 + 1);
343 			}
344 #endif
345 #endif
346 
347 			fdt_setprop(blob, l2_off, "cache-unified", NULL, 0);
348 			fdt_setprop_cell(blob, l2_off, "cache-block-size",
349 						line_size);
350 			fdt_setprop_cell(blob, l2_off, "cache-size", size);
351 			fdt_setprop_cell(blob, l2_off, "cache-sets", num_sets);
352 			fdt_setprop_cell(blob, l2_off, "cache-level", 2);
353 			ft_fixup_l2cache_compatible(blob, l2_off);
354 		}
355 
356 		if (l3_off < 0) {
357 			ph = (u32 *)fdt_getprop(blob, l2_off, "next-level-cache", 0);
358 
359 			if (ph == NULL) {
360 				debug("no next-level-cache property\n");
361 				goto next;
362 			}
363 			l3_off = *ph;
364 		}
365 next:
366 		off = fdt_node_offset_by_prop_value(blob, off,
367 				"device_type", "cpu", 4);
368 	}
369 	if (l3_off > 0) {
370 		l3_off = fdt_node_offset_by_phandle(blob, l3_off);
371 		if (l3_off < 0) {
372 			printf("%s: %s\n", __func__, fdt_strerror(off));
373 			return ;
374 		}
375 		ft_fixup_l3cache(blob, l3_off);
376 	}
377 }
378 #else
379 #define ft_fixup_l2cache(x)
380 #endif
381 
382 static inline void ft_fixup_cache(void *blob)
383 {
384 	int off;
385 
386 	off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
387 
388 	while (off != -FDT_ERR_NOTFOUND) {
389 		u32 l1cfg0 = mfspr(SPRN_L1CFG0);
390 		u32 l1cfg1 = mfspr(SPRN_L1CFG1);
391 		u32 isize, iline_size, inum_sets, inum_ways;
392 		u32 dsize, dline_size, dnum_sets, dnum_ways;
393 
394 		/* d-side config */
395 		dsize = (l1cfg0 & 0x7ff) * 1024;
396 		dnum_ways = ((l1cfg0 >> 11) & 0xff) + 1;
397 		dline_size = (((l1cfg0 >> 23) & 0x3) + 1) * 32;
398 		dnum_sets = dsize / (dline_size * dnum_ways);
399 
400 		fdt_setprop_cell(blob, off, "d-cache-block-size", dline_size);
401 		fdt_setprop_cell(blob, off, "d-cache-size", dsize);
402 		fdt_setprop_cell(blob, off, "d-cache-sets", dnum_sets);
403 
404 #ifdef CONFIG_SYS_CACHE_STASHING
405 		{
406 			u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
407 			if (reg)
408 				fdt_setprop_cell(blob, off, "cache-stash-id",
409 					 (*reg * 2) + 32 + 0);
410 		}
411 #endif
412 
413 		/* i-side config */
414 		isize = (l1cfg1 & 0x7ff) * 1024;
415 		inum_ways = ((l1cfg1 >> 11) & 0xff) + 1;
416 		iline_size = (((l1cfg1 >> 23) & 0x3) + 1) * 32;
417 		inum_sets = isize / (iline_size * inum_ways);
418 
419 		fdt_setprop_cell(blob, off, "i-cache-block-size", iline_size);
420 		fdt_setprop_cell(blob, off, "i-cache-size", isize);
421 		fdt_setprop_cell(blob, off, "i-cache-sets", inum_sets);
422 
423 		off = fdt_node_offset_by_prop_value(blob, off,
424 				"device_type", "cpu", 4);
425 	}
426 
427 	ft_fixup_l2cache(blob);
428 }
429 
430 
431 void fdt_add_enet_stashing(void *fdt)
432 {
433 	do_fixup_by_compat(fdt, "gianfar", "bd-stash", NULL, 0, 1);
434 
435 	do_fixup_by_compat_u32(fdt, "gianfar", "rx-stash-len", 96, 1);
436 
437 	do_fixup_by_compat_u32(fdt, "gianfar", "rx-stash-idx", 0, 1);
438 	do_fixup_by_compat(fdt, "fsl,etsec2", "bd-stash", NULL, 0, 1);
439 	do_fixup_by_compat_u32(fdt, "fsl,etsec2", "rx-stash-len", 96, 1);
440 	do_fixup_by_compat_u32(fdt, "fsl,etsec2", "rx-stash-idx", 0, 1);
441 }
442 
443 #if defined(CONFIG_SYS_DPAA_FMAN) || defined(CONFIG_SYS_DPAA_PME)
444 #ifdef CONFIG_SYS_DPAA_FMAN
445 static void ft_fixup_clks(void *blob, const char *compat, u32 offset,
446 			  unsigned long freq)
447 {
448 	phys_addr_t phys = offset + CONFIG_SYS_CCSRBAR_PHYS;
449 	int off = fdt_node_offset_by_compat_reg(blob, compat, phys);
450 
451 	if (off >= 0) {
452 		off = fdt_setprop_cell(blob, off, "clock-frequency", freq);
453 		if (off > 0)
454 			printf("WARNING enable to set clock-frequency "
455 				"for %s: %s\n", compat, fdt_strerror(off));
456 	}
457 }
458 #endif
459 
460 static void ft_fixup_dpaa_clks(void *blob)
461 {
462 	sys_info_t sysinfo;
463 
464 	get_sys_info(&sysinfo);
465 #ifdef CONFIG_SYS_DPAA_FMAN
466 	ft_fixup_clks(blob, "fsl,fman", CONFIG_SYS_FSL_FM1_OFFSET,
467 			sysinfo.freq_fman[0]);
468 
469 #if (CONFIG_SYS_NUM_FMAN == 2)
470 	ft_fixup_clks(blob, "fsl,fman", CONFIG_SYS_FSL_FM2_OFFSET,
471 			sysinfo.freq_fman[1]);
472 #endif
473 #endif
474 
475 #ifdef CONFIG_SYS_DPAA_QBMAN
476 	do_fixup_by_compat_u32(blob, "fsl,qman",
477 			"clock-frequency", sysinfo.freq_qman, 1);
478 #endif
479 
480 #ifdef CONFIG_SYS_DPAA_PME
481 	do_fixup_by_compat_u32(blob, "fsl,pme",
482 		"clock-frequency", sysinfo.freq_pme, 1);
483 #endif
484 }
485 #else
486 #define ft_fixup_dpaa_clks(x)
487 #endif
488 
489 #ifdef CONFIG_QE
490 static void ft_fixup_qe_snum(void *blob)
491 {
492 	unsigned int svr;
493 
494 	svr = mfspr(SPRN_SVR);
495 	if (SVR_SOC_VER(svr) == SVR_8569) {
496 		if(IS_SVR_REV(svr, 1, 0))
497 			do_fixup_by_compat_u32(blob, "fsl,qe",
498 				"fsl,qe-num-snums", 46, 1);
499 		else
500 			do_fixup_by_compat_u32(blob, "fsl,qe",
501 				"fsl,qe-num-snums", 76, 1);
502 	}
503 }
504 #endif
505 
506 #if defined(CONFIG_ARCH_P4080)
507 static void fdt_fixup_usb(void *fdt)
508 {
509 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
510 	u32 rcwsr11 = in_be32(&gur->rcwsr[11]);
511 	int off;
512 
513 	off = fdt_node_offset_by_compatible(fdt, -1, "fsl,mpc85xx-usb2-mph");
514 	if ((rcwsr11 & FSL_CORENET_RCWSR11_EC1) !=
515 				FSL_CORENET_RCWSR11_EC1_FM1_USB1)
516 		fdt_status_disabled(fdt, off);
517 
518 	off = fdt_node_offset_by_compatible(fdt, -1, "fsl,mpc85xx-usb2-dr");
519 	if ((rcwsr11 & FSL_CORENET_RCWSR11_EC2) !=
520 				FSL_CORENET_RCWSR11_EC2_USB2)
521 		fdt_status_disabled(fdt, off);
522 }
523 #else
524 #define fdt_fixup_usb(x)
525 #endif
526 
527 #if defined(CONFIG_ARCH_T2080) || defined(CONFIG_ARCH_T4240) || \
528 	defined(CONFIG_ARCH_T4160)
529 void fdt_fixup_dma3(void *blob)
530 {
531 	/* the 3rd DMA is not functional if SRIO2 is chosen */
532 	int nodeoff;
533 	ccsr_gur_t __iomem *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
534 
535 #define CONFIG_SYS_ELO3_DMA3 (0xffe000000 + 0x102300)
536 #if defined(CONFIG_ARCH_T2080)
537 	u32 srds_prtcl_s2 = in_be32(&gur->rcwsr[4]) &
538 				    FSL_CORENET2_RCWSR4_SRDS2_PRTCL;
539 	srds_prtcl_s2 >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT;
540 
541 	switch (srds_prtcl_s2) {
542 	case 0x29:
543 	case 0x2d:
544 	case 0x2e:
545 #elif defined(CONFIG_ARCH_T4240) || defined(CONFIG_ARCH_T4160)
546 	u32 srds_prtcl_s4 = in_be32(&gur->rcwsr[4]) &
547 				    FSL_CORENET2_RCWSR4_SRDS4_PRTCL;
548 	srds_prtcl_s4 >>= FSL_CORENET2_RCWSR4_SRDS4_PRTCL_SHIFT;
549 
550 	switch (srds_prtcl_s4) {
551 	case 6:
552 	case 8:
553 	case 14:
554 	case 16:
555 #endif
556 		nodeoff = fdt_node_offset_by_compat_reg(blob, "fsl,elo3-dma",
557 							CONFIG_SYS_ELO3_DMA3);
558 		if (nodeoff > 0)
559 			fdt_status_disabled(blob, nodeoff);
560 		else
561 			printf("WARNING: unable to disable dma3\n");
562 		break;
563 	default:
564 		break;
565 	}
566 }
567 #else
568 #define fdt_fixup_dma3(x)
569 #endif
570 
571 #if defined(CONFIG_ARCH_T1040)
572 static void fdt_fixup_l2_switch(void *blob)
573 {
574 	uchar l2swaddr[6];
575 	int node;
576 
577 	/* The l2switch node from device-tree has
578 	 * compatible string "vitesse-9953" */
579 	node = fdt_node_offset_by_compatible(blob, -1, "vitesse-9953");
580 	if (node == -FDT_ERR_NOTFOUND)
581 		/* no l2switch node has been found */
582 		return;
583 
584 	/* Get MAC address for the l2switch from "l2switchaddr"*/
585 	if (!eth_env_get_enetaddr("l2switchaddr", l2swaddr)) {
586 		printf("Warning: MAC address for l2switch not found\n");
587 		memset(l2swaddr, 0, sizeof(l2swaddr));
588 	}
589 
590 	/* Add MAC address to l2switch node */
591 	fdt_setprop(blob, node, "local-mac-address", l2swaddr,
592 		    sizeof(l2swaddr));
593 }
594 #else
595 #define fdt_fixup_l2_switch(x)
596 #endif
597 
598 void ft_cpu_setup(void *blob, bd_t *bd)
599 {
600 	int off;
601 	int val;
602 	int len;
603 	sys_info_t sysinfo;
604 
605 	/* delete crypto node if not on an E-processor */
606 	if (!IS_E_PROCESSOR(get_svr()))
607 		fdt_fixup_crypto_node(blob, 0);
608 #if CONFIG_SYS_FSL_SEC_COMPAT >= 4
609 	else {
610 		ccsr_sec_t __iomem *sec;
611 
612 		sec = (void __iomem *)CONFIG_SYS_FSL_SEC_ADDR;
613 		fdt_fixup_crypto_node(blob, sec_in32(&sec->secvid_ms));
614 	}
615 #endif
616 
617 	fdt_add_enet_stashing(blob);
618 
619 #ifndef CONFIG_FSL_TBCLK_EXTRA_DIV
620 #define CONFIG_FSL_TBCLK_EXTRA_DIV 1
621 #endif
622 	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
623 		"timebase-frequency", get_tbclk() / CONFIG_FSL_TBCLK_EXTRA_DIV,
624 		1);
625 	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
626 		"bus-frequency", bd->bi_busfreq, 1);
627 	get_sys_info(&sysinfo);
628 	off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
629 	while (off != -FDT_ERR_NOTFOUND) {
630 		u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", &len);
631 		val = cpu_to_fdt32(sysinfo.freq_processor[(*reg) / (len / 4)]);
632 		fdt_setprop(blob, off, "clock-frequency", &val, 4);
633 		off = fdt_node_offset_by_prop_value(blob, off, "device_type",
634 							"cpu", 4);
635 	}
636 	do_fixup_by_prop_u32(blob, "device_type", "soc", 4,
637 		"bus-frequency", bd->bi_busfreq, 1);
638 
639 #ifdef CONFIG_QE
640 	ft_qe_setup(blob);
641 	ft_fixup_qe_snum(blob);
642 #endif
643 
644 #ifdef CONFIG_SYS_DPAA_FMAN
645 	fdt_fixup_fman_firmware(blob);
646 #endif
647 
648 #ifdef CONFIG_SYS_NS16550
649 	do_fixup_by_compat_u32(blob, "ns16550",
650 		"clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
651 #endif
652 
653 #ifdef CONFIG_CPM2
654 	do_fixup_by_compat_u32(blob, "fsl,cpm2-scc-uart",
655 		"current-speed", gd->baudrate, 1);
656 
657 	do_fixup_by_compat_u32(blob, "fsl,cpm2-brg",
658 		"clock-frequency", bd->bi_brgfreq, 1);
659 #endif
660 
661 #ifdef CONFIG_FSL_CORENET
662 	do_fixup_by_compat_u32(blob, "fsl,qoriq-clockgen-1.0",
663 		"clock-frequency", CONFIG_SYS_CLK_FREQ, 1);
664 	do_fixup_by_compat_u32(blob, "fsl,qoriq-clockgen-2.0",
665 		"clock-frequency", CONFIG_SYS_CLK_FREQ, 1);
666 	do_fixup_by_compat_u32(blob, "fsl,mpic",
667 		"clock-frequency", get_bus_freq(0)/2, 1);
668 #else
669 	do_fixup_by_compat_u32(blob, "fsl,mpic",
670 		"clock-frequency", get_bus_freq(0), 1);
671 #endif
672 
673 	fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
674 
675 #ifdef CONFIG_MP
676 	ft_fixup_cpu(blob, (u64)bd->bi_memstart + (u64)bd->bi_memsize);
677 	ft_fixup_num_cores(blob);
678 #endif
679 
680 	ft_fixup_cache(blob);
681 
682 #if defined(CONFIG_FSL_ESDHC)
683 	fdt_fixup_esdhc(blob, bd);
684 #endif
685 
686 	ft_fixup_dpaa_clks(blob);
687 
688 #if defined(CONFIG_SYS_BMAN_MEM_PHYS)
689 	fdt_portal(blob, "fsl,bman-portal", "bman-portals",
690 			(u64)CONFIG_SYS_BMAN_MEM_PHYS,
691 			CONFIG_SYS_BMAN_MEM_SIZE);
692 	fdt_fixup_bportals(blob);
693 #endif
694 
695 #if defined(CONFIG_SYS_QMAN_MEM_PHYS)
696 	fdt_portal(blob, "fsl,qman-portal", "qman-portals",
697 			(u64)CONFIG_SYS_QMAN_MEM_PHYS,
698 			CONFIG_SYS_QMAN_MEM_SIZE);
699 
700 	fdt_fixup_qportals(blob);
701 #endif
702 
703 #ifdef CONFIG_SYS_SRIO
704 	ft_srio_setup(blob);
705 #endif
706 
707 	/*
708 	 * system-clock = CCB clock/2
709 	 * Here gd->bus_clk = CCB clock
710 	 * We are using the system clock as 1588 Timer reference
711 	 * clock source select
712 	 */
713 	do_fixup_by_compat_u32(blob, "fsl,gianfar-ptp-timer",
714 			"timer-frequency", gd->bus_clk/2, 1);
715 
716 	/*
717 	 * clock-freq should change to clock-frequency and
718 	 * flexcan-v1.0 should change to p1010-flexcan respectively
719 	 * in the future.
720 	 */
721 	do_fixup_by_compat_u32(blob, "fsl,flexcan-v1.0",
722 			"clock_freq", gd->bus_clk/2, 1);
723 
724 	do_fixup_by_compat_u32(blob, "fsl,flexcan-v1.0",
725 			"clock-frequency", gd->bus_clk/2, 1);
726 
727 	do_fixup_by_compat_u32(blob, "fsl,p1010-flexcan",
728 			"clock-frequency", gd->bus_clk/2, 1);
729 
730 	fdt_fixup_usb(blob);
731 
732 	fdt_fixup_l2_switch(blob);
733 
734 	fdt_fixup_dma3(blob);
735 }
736 
737 /*
738  * For some CCSR devices, we only have the virtual address, not the physical
739  * address.  This is because we map CCSR as a whole, so we typically don't need
740  * a macro for the physical address of any device within CCSR.  In this case,
741  * we calculate the physical address of that device using it's the difference
742  * between the virtual address of the device and the virtual address of the
743  * beginning of CCSR.
744  */
745 #define CCSR_VIRT_TO_PHYS(x) \
746 	(CONFIG_SYS_CCSRBAR_PHYS + ((x) - CONFIG_SYS_CCSRBAR))
747 
748 static void msg(const char *name, uint64_t uaddr, uint64_t daddr)
749 {
750 	printf("Warning: U-Boot configured %s at address %llx,\n"
751 	       "but the device tree has it at %llx\n", name, uaddr, daddr);
752 }
753 
754 /*
755  * Verify the device tree
756  *
757  * This function compares several CONFIG_xxx macros that contain physical
758  * addresses with the corresponding nodes in the device tree, to see if
759  * the physical addresses are all correct.  For example, if
760  * CONFIG_SYS_NS16550_COM1 is defined, then it contains the virtual address
761  * of the first UART.  We convert this to a physical address and compare
762  * that with the physical address of the first ns16550-compatible node
763  * in the device tree.  If they don't match, then we display a warning.
764  *
765  * Returns 1 on success, 0 on failure
766  */
767 int ft_verify_fdt(void *fdt)
768 {
769 	uint64_t addr = 0;
770 	int aliases;
771 	int off;
772 
773 	/* First check the CCSR base address */
774 	off = fdt_node_offset_by_prop_value(fdt, -1, "device_type", "soc", 4);
775 	if (off > 0) {
776 		int size;
777 		u32 naddr;
778 		const fdt32_t *prop;
779 
780 		naddr = fdt_address_cells(fdt, off);
781 		prop = fdt_getprop(fdt, off, "ranges", &size);
782 		addr = fdt_translate_address(fdt, off, prop + naddr);
783 	}
784 
785 	if (!addr) {
786 		printf("Warning: could not determine base CCSR address in "
787 		       "device tree\n");
788 		/* No point in checking anything else */
789 		return 0;
790 	}
791 
792 	if (addr != CONFIG_SYS_CCSRBAR_PHYS) {
793 		msg("CCSR", CONFIG_SYS_CCSRBAR_PHYS, addr);
794 		/* No point in checking anything else */
795 		return 0;
796 	}
797 
798 	/*
799 	 * Check some nodes via aliases.  We assume that U-Boot and the device
800 	 * tree enumerate the devices equally.  E.g. the first serial port in
801 	 * U-Boot is the same as "serial0" in the device tree.
802 	 */
803 	aliases = fdt_path_offset(fdt, "/aliases");
804 	if (aliases > 0) {
805 #ifdef CONFIG_SYS_NS16550_COM1
806 		if (!fdt_verify_alias_address(fdt, aliases, "serial0",
807 			CCSR_VIRT_TO_PHYS(CONFIG_SYS_NS16550_COM1)))
808 			return 0;
809 #endif
810 
811 #ifdef CONFIG_SYS_NS16550_COM2
812 		if (!fdt_verify_alias_address(fdt, aliases, "serial1",
813 			CCSR_VIRT_TO_PHYS(CONFIG_SYS_NS16550_COM2)))
814 			return 0;
815 #endif
816 	}
817 
818 	/*
819 	 * The localbus node is typically a root node, even though the lbc
820 	 * controller is part of CCSR.  If we were to put the lbc node under
821 	 * the SOC node, then the 'ranges' property in the lbc node would
822 	 * translate through the 'ranges' property of the parent SOC node, and
823 	 * we don't want that.  Since it's a separate node, it's possible for
824 	 * the 'reg' property to be wrong, so check it here.  For now, we
825 	 * only check for "fsl,elbc" nodes.
826 	 */
827 #ifdef CONFIG_SYS_LBC_ADDR
828 	off = fdt_node_offset_by_compatible(fdt, -1, "fsl,elbc");
829 	if (off > 0) {
830 		const fdt32_t *reg = fdt_getprop(fdt, off, "reg", NULL);
831 		if (reg) {
832 			uint64_t uaddr = CCSR_VIRT_TO_PHYS(CONFIG_SYS_LBC_ADDR);
833 
834 			addr = fdt_translate_address(fdt, off, reg);
835 			if (uaddr != addr) {
836 				msg("the localbus", uaddr, addr);
837 				return 0;
838 			}
839 		}
840 	}
841 #endif
842 
843 	return 1;
844 }
845 
846 void fdt_del_diu(void *blob)
847 {
848 	int nodeoff = 0;
849 
850 	while ((nodeoff = fdt_node_offset_by_compatible(blob, 0,
851 				"fsl,diu")) >= 0) {
852 		fdt_del_node(blob, nodeoff);
853 	}
854 }
855