blob: b6f252a87b0c9de15ec7ac02eca1990565392b43 [file] [log] [blame]
Gerald Van Baren64dbbd42007-04-06 14:19:43 -04001/*
2 * (C) Copyright 2007
3 * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24#include <common.h>
Anton Vorontsov3e303f72009-10-15 17:47:04 +040025#include <stdio_dev.h>
Gerald Van Baren64dbbd42007-04-06 14:19:43 -040026#include <linux/ctype.h>
27#include <linux/types.h>
Gerald Van Baren64dbbd42007-04-06 14:19:43 -040028#include <asm/global_data.h>
29#include <fdt.h>
30#include <libfdt.h>
31#include <fdt_support.h>
Kumar Gala151c8b02007-11-26 17:06:15 -060032#include <exports.h>
Gerald Van Baren64dbbd42007-04-06 14:19:43 -040033
34/*
35 * Global data (for the gd->bd)
36 */
37DECLARE_GLOBAL_DATA_PTR;
38
Kumar Gala3bed2aa2008-10-23 00:05:47 -050039/**
40 * fdt_getprop_u32_default - Find a node and return it's property or a default
41 *
42 * @fdt: ptr to device tree
43 * @path: path of node
44 * @prop: property name
45 * @dflt: default value if the property isn't found
46 *
47 * Convenience function to find a node and return it's property or a
48 * default value if it doesn't exist.
49 */
50u32 fdt_getprop_u32_default(void *fdt, const char *path, const char *prop,
51 const u32 dflt)
52{
53 const u32 *val;
54 int off;
55
56 off = fdt_path_offset(fdt, path);
57 if (off < 0)
58 return dflt;
59
60 val = fdt_getprop(fdt, off, prop, NULL);
61 if (val)
62 return *val;
63 else
64 return dflt;
65}
Gerald Van Baren64dbbd42007-04-06 14:19:43 -040066
Kumar Galaa3c29332007-10-24 10:21:57 -050067/**
68 * fdt_find_and_setprop: Find a node and set it's property
69 *
70 * @fdt: ptr to device tree
71 * @node: path of node
72 * @prop: property name
73 * @val: ptr to new value
74 * @len: length of new property value
75 * @create: flag to create the property if it doesn't exist
76 *
77 * Convenience function to directly set a property given the path to the node.
78 */
79int fdt_find_and_setprop(void *fdt, const char *node, const char *prop,
80 const void *val, int len, int create)
81{
Kumar Gala8d04f022007-10-24 11:04:22 -050082 int nodeoff = fdt_path_offset(fdt, node);
Kumar Galaa3c29332007-10-24 10:21:57 -050083
84 if (nodeoff < 0)
85 return nodeoff;
86
87 if ((!create) && (fdt_get_property(fdt, nodeoff, prop, 0) == NULL))
88 return 0; /* create flag not set; so exit quietly */
89
90 return fdt_setprop(fdt, nodeoff, prop, val, len);
91}
92
Kumar Gala151c8b02007-11-26 17:06:15 -060093#ifdef CONFIG_OF_STDOUT_VIA_ALIAS
Anton Vorontsov3e303f72009-10-15 17:47:04 +040094
95#ifdef CONFIG_SERIAL_MULTI
96static void fdt_fill_multisername(char *sername, size_t maxlen)
97{
98 const char *outname = stdio_devices[stdout]->name;
99
100 if (strcmp(outname, "serial") > 0)
101 strncpy(sername, outname, maxlen);
102
103 /* eserial? */
104 if (strcmp(outname + 1, "serial") > 0)
105 strncpy(sername, outname + 1, maxlen);
106}
107#else
108static inline void fdt_fill_multisername(char *sername, size_t maxlen) {}
109#endif /* CONFIG_SERIAL_MULTI */
110
Detlev Zundel40777812008-06-20 22:24:05 +0200111static int fdt_fixup_stdout(void *fdt, int chosenoff)
Kumar Gala151c8b02007-11-26 17:06:15 -0600112{
113 int err = 0;
114#ifdef CONFIG_CONS_INDEX
115 int node;
116 char sername[9] = { 0 };
117 const char *path;
118
Anton Vorontsov3e303f72009-10-15 17:47:04 +0400119 fdt_fill_multisername(sername, sizeof(sername) - 1);
120 if (!sername[0])
121 sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1);
Kumar Gala151c8b02007-11-26 17:06:15 -0600122
123 err = node = fdt_path_offset(fdt, "/aliases");
124 if (node >= 0) {
125 int len;
126 path = fdt_getprop(fdt, node, sername, &len);
127 if (path) {
128 char *p = malloc(len);
129 err = -FDT_ERR_NOSPACE;
130 if (p) {
131 memcpy(p, path, len);
Detlev Zundel40777812008-06-20 22:24:05 +0200132 err = fdt_setprop(fdt, chosenoff,
Kumar Gala151c8b02007-11-26 17:06:15 -0600133 "linux,stdout-path", p, len);
134 free(p);
135 }
136 } else {
137 err = len;
138 }
139 }
140#endif
141 if (err < 0)
142 printf("WARNING: could not set linux,stdout-path %s.\n",
143 fdt_strerror(err));
144
145 return err;
146}
147#endif
148
Kumar Gala2a1a2cb2008-08-15 08:24:43 -0500149int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end, int force)
150{
151 int nodeoffset;
152 int err, j, total;
153 u32 tmp;
154 const char *path;
155 uint64_t addr, size;
156
157 /* Find the "chosen" node. */
158 nodeoffset = fdt_path_offset (fdt, "/chosen");
159
160 /* If there is no "chosen" node in the blob return */
161 if (nodeoffset < 0) {
162 printf("fdt_initrd: %s\n", fdt_strerror(nodeoffset));
163 return nodeoffset;
164 }
165
166 /* just return if initrd_start/end aren't valid */
167 if ((initrd_start == 0) || (initrd_end == 0))
168 return 0;
169
170 total = fdt_num_mem_rsv(fdt);
171
172 /*
173 * Look for an existing entry and update it. If we don't find
174 * the entry, we will j be the next available slot.
175 */
176 for (j = 0; j < total; j++) {
177 err = fdt_get_mem_rsv(fdt, j, &addr, &size);
178 if (addr == initrd_start) {
179 fdt_del_mem_rsv(fdt, j);
180 break;
181 }
182 }
183
184 err = fdt_add_mem_rsv(fdt, initrd_start, initrd_end - initrd_start + 1);
185 if (err < 0) {
186 printf("fdt_initrd: %s\n", fdt_strerror(err));
187 return err;
188 }
189
190 path = fdt_getprop(fdt, nodeoffset, "linux,initrd-start", NULL);
191 if ((path == NULL) || force) {
192 tmp = __cpu_to_be32(initrd_start);
193 err = fdt_setprop(fdt, nodeoffset,
194 "linux,initrd-start", &tmp, sizeof(tmp));
195 if (err < 0) {
196 printf("WARNING: "
197 "could not set linux,initrd-start %s.\n",
198 fdt_strerror(err));
199 return err;
200 }
201 tmp = __cpu_to_be32(initrd_end);
202 err = fdt_setprop(fdt, nodeoffset,
203 "linux,initrd-end", &tmp, sizeof(tmp));
204 if (err < 0) {
205 printf("WARNING: could not set linux,initrd-end %s.\n",
206 fdt_strerror(err));
207
208 return err;
209 }
210 }
211
212 return 0;
213}
214
Heiko Schocher56844a22008-09-11 08:11:23 +0200215int fdt_chosen(void *fdt, int force)
Gerald Van Baren64dbbd42007-04-06 14:19:43 -0400216{
Gerald Van Baren64dbbd42007-04-06 14:19:43 -0400217 int nodeoffset;
218 int err;
Gerald Van Baren35ec3982007-05-25 22:08:57 -0400219 char *str; /* used to set string properties */
Gerald Van Barenb60af3d2007-12-29 22:45:27 -0500220 const char *path;
Gerald Van Baren64dbbd42007-04-06 14:19:43 -0400221
222 err = fdt_check_header(fdt);
223 if (err < 0) {
Gerald Van Baren5fe6be62007-08-07 21:14:22 -0400224 printf("fdt_chosen: %s\n", fdt_strerror(err));
Gerald Van Baren64dbbd42007-04-06 14:19:43 -0400225 return err;
226 }
227
Gerald Van Baren64dbbd42007-04-06 14:19:43 -0400228 /*
229 * Find the "chosen" node.
230 */
Kumar Gala8d04f022007-10-24 11:04:22 -0500231 nodeoffset = fdt_path_offset (fdt, "/chosen");
Gerald Van Baren64dbbd42007-04-06 14:19:43 -0400232
233 /*
Gerald Van Barenb60af3d2007-12-29 22:45:27 -0500234 * If there is no "chosen" node in the blob, create it.
Gerald Van Baren64dbbd42007-04-06 14:19:43 -0400235 */
236 if (nodeoffset < 0) {
237 /*
238 * Create a new node "/chosen" (offset 0 is root level)
239 */
240 nodeoffset = fdt_add_subnode(fdt, 0, "chosen");
241 if (nodeoffset < 0) {
Gerald Van Baren5fe6be62007-08-07 21:14:22 -0400242 printf("WARNING: could not create /chosen %s.\n",
Gerald Van Baren35ec3982007-05-25 22:08:57 -0400243 fdt_strerror(nodeoffset));
Gerald Van Baren64dbbd42007-04-06 14:19:43 -0400244 return nodeoffset;
245 }
246 }
247
248 /*
Gerald Van Barenb60af3d2007-12-29 22:45:27 -0500249 * Create /chosen properites that don't exist in the fdt.
250 * If the property exists, update it only if the "force" parameter
251 * is true.
Gerald Van Baren64dbbd42007-04-06 14:19:43 -0400252 */
253 str = getenv("bootargs");
254 if (str != NULL) {
Gerald Van Barenb60af3d2007-12-29 22:45:27 -0500255 path = fdt_getprop(fdt, nodeoffset, "bootargs", NULL);
256 if ((path == NULL) || force) {
257 err = fdt_setprop(fdt, nodeoffset,
258 "bootargs", str, strlen(str)+1);
259 if (err < 0)
260 printf("WARNING: could not set bootargs %s.\n",
261 fdt_strerror(err));
262 }
Gerald Van Baren64dbbd42007-04-06 14:19:43 -0400263 }
Kumar Gala2a1a2cb2008-08-15 08:24:43 -0500264
Kumar Gala151c8b02007-11-26 17:06:15 -0600265#ifdef CONFIG_OF_STDOUT_VIA_ALIAS
Gerald Van Barenb60af3d2007-12-29 22:45:27 -0500266 path = fdt_getprop(fdt, nodeoffset, "linux,stdout-path", NULL);
267 if ((path == NULL) || force)
268 err = fdt_fixup_stdout(fdt, nodeoffset);
Kumar Gala151c8b02007-11-26 17:06:15 -0600269#endif
270
Gerald Van Baren64dbbd42007-04-06 14:19:43 -0400271#ifdef OF_STDOUT_PATH
Gerald Van Barenb60af3d2007-12-29 22:45:27 -0500272 path = fdt_getprop(fdt, nodeoffset, "linux,stdout-path", NULL);
273 if ((path == NULL) || force) {
274 err = fdt_setprop(fdt, nodeoffset,
275 "linux,stdout-path", OF_STDOUT_PATH, strlen(OF_STDOUT_PATH)+1);
276 if (err < 0)
277 printf("WARNING: could not set linux,stdout-path %s.\n",
278 fdt_strerror(err));
279 }
Gerald Van Baren64dbbd42007-04-06 14:19:43 -0400280#endif
281
Gerald Van Baren64dbbd42007-04-06 14:19:43 -0400282 return err;
283}
284
Kumar Galae93becf2007-11-03 19:46:28 -0500285void do_fixup_by_path(void *fdt, const char *path, const char *prop,
286 const void *val, int len, int create)
287{
288#if defined(DEBUG)
289 int i;
Kumar Galad9ad1152008-02-13 15:09:58 -0600290 debug("Updating property '%s/%s' = ", path, prop);
Kumar Galae93becf2007-11-03 19:46:28 -0500291 for (i = 0; i < len; i++)
292 debug(" %.2x", *(u8*)(val+i));
293 debug("\n");
294#endif
295 int rc = fdt_find_and_setprop(fdt, path, prop, val, len, create);
296 if (rc)
297 printf("Unable to update property %s:%s, err=%s\n",
298 path, prop, fdt_strerror(rc));
299}
300
301void do_fixup_by_path_u32(void *fdt, const char *path, const char *prop,
302 u32 val, int create)
303{
304 val = cpu_to_fdt32(val);
305 do_fixup_by_path(fdt, path, prop, &val, sizeof(val), create);
306}
307
Kumar Gala9eb77ce2007-11-21 13:30:15 -0600308void do_fixup_by_prop(void *fdt,
309 const char *pname, const void *pval, int plen,
310 const char *prop, const void *val, int len,
311 int create)
312{
313 int off;
314#if defined(DEBUG)
315 int i;
Kumar Galad9ad1152008-02-13 15:09:58 -0600316 debug("Updating property '%s' = ", prop);
Kumar Gala9eb77ce2007-11-21 13:30:15 -0600317 for (i = 0; i < len; i++)
318 debug(" %.2x", *(u8*)(val+i));
319 debug("\n");
320#endif
321 off = fdt_node_offset_by_prop_value(fdt, -1, pname, pval, plen);
322 while (off != -FDT_ERR_NOTFOUND) {
323 if (create || (fdt_get_property(fdt, off, prop, 0) != NULL))
324 fdt_setprop(fdt, off, prop, val, len);
325 off = fdt_node_offset_by_prop_value(fdt, off, pname, pval, plen);
326 }
327}
328
329void do_fixup_by_prop_u32(void *fdt,
330 const char *pname, const void *pval, int plen,
331 const char *prop, u32 val, int create)
332{
333 val = cpu_to_fdt32(val);
334 do_fixup_by_prop(fdt, pname, pval, plen, prop, &val, 4, create);
335}
336
337void do_fixup_by_compat(void *fdt, const char *compat,
338 const char *prop, const void *val, int len, int create)
339{
340 int off = -1;
341#if defined(DEBUG)
342 int i;
Kumar Galad9ad1152008-02-13 15:09:58 -0600343 debug("Updating property '%s' = ", prop);
Kumar Gala9eb77ce2007-11-21 13:30:15 -0600344 for (i = 0; i < len; i++)
345 debug(" %.2x", *(u8*)(val+i));
346 debug("\n");
347#endif
348 off = fdt_node_offset_by_compatible(fdt, -1, compat);
349 while (off != -FDT_ERR_NOTFOUND) {
350 if (create || (fdt_get_property(fdt, off, prop, 0) != NULL))
351 fdt_setprop(fdt, off, prop, val, len);
352 off = fdt_node_offset_by_compatible(fdt, off, compat);
353 }
354}
355
356void do_fixup_by_compat_u32(void *fdt, const char *compat,
357 const char *prop, u32 val, int create)
358{
359 val = cpu_to_fdt32(val);
360 do_fixup_by_compat(fdt, compat, prop, &val, 4, create);
361}
362
Kumar Gala3c927282007-11-26 14:57:45 -0600363int fdt_fixup_memory(void *blob, u64 start, u64 size)
364{
365 int err, nodeoffset, len = 0;
366 u8 tmp[16];
367 const u32 *addrcell, *sizecell;
368
369 err = fdt_check_header(blob);
370 if (err < 0) {
371 printf("%s: %s\n", __FUNCTION__, fdt_strerror(err));
372 return err;
373 }
374
375 /* update, or add and update /memory node */
376 nodeoffset = fdt_path_offset(blob, "/memory");
377 if (nodeoffset < 0) {
378 nodeoffset = fdt_add_subnode(blob, 0, "memory");
379 if (nodeoffset < 0)
380 printf("WARNING: could not create /memory: %s.\n",
381 fdt_strerror(nodeoffset));
382 return nodeoffset;
383 }
384 err = fdt_setprop(blob, nodeoffset, "device_type", "memory",
385 sizeof("memory"));
386 if (err < 0) {
387 printf("WARNING: could not set %s %s.\n", "device_type",
388 fdt_strerror(err));
389 return err;
390 }
391
392 addrcell = fdt_getprop(blob, 0, "#address-cells", NULL);
393 /* use shifts and mask to ensure endianness */
394 if ((addrcell) && (*addrcell == 2)) {
395 tmp[0] = (start >> 56) & 0xff;
396 tmp[1] = (start >> 48) & 0xff;
397 tmp[2] = (start >> 40) & 0xff;
398 tmp[3] = (start >> 32) & 0xff;
399 tmp[4] = (start >> 24) & 0xff;
400 tmp[5] = (start >> 16) & 0xff;
401 tmp[6] = (start >> 8) & 0xff;
402 tmp[7] = (start ) & 0xff;
403 len = 8;
404 } else {
405 tmp[0] = (start >> 24) & 0xff;
406 tmp[1] = (start >> 16) & 0xff;
407 tmp[2] = (start >> 8) & 0xff;
408 tmp[3] = (start ) & 0xff;
409 len = 4;
410 }
411
412 sizecell = fdt_getprop(blob, 0, "#size-cells", NULL);
413 /* use shifts and mask to ensure endianness */
414 if ((sizecell) && (*sizecell == 2)) {
415 tmp[0+len] = (size >> 56) & 0xff;
416 tmp[1+len] = (size >> 48) & 0xff;
417 tmp[2+len] = (size >> 40) & 0xff;
418 tmp[3+len] = (size >> 32) & 0xff;
419 tmp[4+len] = (size >> 24) & 0xff;
420 tmp[5+len] = (size >> 16) & 0xff;
421 tmp[6+len] = (size >> 8) & 0xff;
422 tmp[7+len] = (size ) & 0xff;
423 len += 8;
424 } else {
425 tmp[0+len] = (size >> 24) & 0xff;
426 tmp[1+len] = (size >> 16) & 0xff;
427 tmp[2+len] = (size >> 8) & 0xff;
428 tmp[3+len] = (size ) & 0xff;
429 len += 4;
430 }
431
432 err = fdt_setprop(blob, nodeoffset, "reg", tmp, len);
433 if (err < 0) {
434 printf("WARNING: could not set %s %s.\n",
435 "reg", fdt_strerror(err));
436 return err;
437 }
438 return 0;
439}
440
Kumar Galaba37aa02008-08-19 15:41:18 -0500441void fdt_fixup_ethernet(void *fdt)
Kumar Galaab544632007-11-21 11:11:03 -0600442{
Kumar Galaba37aa02008-08-19 15:41:18 -0500443 int node, i, j;
444 char enet[16], *tmp, *end;
445 char mac[16] = "ethaddr";
Kumar Galaab544632007-11-21 11:11:03 -0600446 const char *path;
Kumar Galaba37aa02008-08-19 15:41:18 -0500447 unsigned char mac_addr[6];
Kumar Galaab544632007-11-21 11:11:03 -0600448
449 node = fdt_path_offset(fdt, "/aliases");
Kumar Galaba37aa02008-08-19 15:41:18 -0500450 if (node < 0)
451 return;
452
453 i = 0;
454 while ((tmp = getenv(mac)) != NULL) {
455 sprintf(enet, "ethernet%d", i);
456 path = fdt_getprop(fdt, node, enet, NULL);
457 if (!path) {
458 debug("No alias for %s\n", enet);
459 sprintf(mac, "eth%daddr", ++i);
460 continue;
Kumar Galaab544632007-11-21 11:11:03 -0600461 }
Kumar Galaba37aa02008-08-19 15:41:18 -0500462
463 for (j = 0; j < 6; j++) {
464 mac_addr[j] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
465 if (tmp)
466 tmp = (*end) ? end+1 : end;
Kumar Galaab544632007-11-21 11:11:03 -0600467 }
Kumar Galaba37aa02008-08-19 15:41:18 -0500468
469 do_fixup_by_path(fdt, path, "mac-address", &mac_addr, 6, 0);
470 do_fixup_by_path(fdt, path, "local-mac-address",
471 &mac_addr, 6, 1);
472
473 sprintf(mac, "eth%daddr", ++i);
Kumar Galaab544632007-11-21 11:11:03 -0600474 }
475}
Anton Vorontsov18e69a32008-03-14 23:20:18 +0300476
477#ifdef CONFIG_HAS_FSL_DR_USB
478void fdt_fixup_dr_usb(void *blob, bd_t *bd)
479{
480 char *mode;
Anton Vorontsov015b27b2008-07-08 20:59:43 +0400481 char *type;
Anton Vorontsov18e69a32008-03-14 23:20:18 +0300482 const char *compat = "fsl-usb2-dr";
Anton Vorontsov015b27b2008-07-08 20:59:43 +0400483 const char *prop_mode = "dr_mode";
484 const char *prop_type = "phy_type";
Anton Vorontsov18e69a32008-03-14 23:20:18 +0300485 int node_offset;
486 int err;
487
488 mode = getenv("usb_dr_mode");
Anton Vorontsov015b27b2008-07-08 20:59:43 +0400489 type = getenv("usb_phy_type");
490 if (!mode && !type)
Anton Vorontsov18e69a32008-03-14 23:20:18 +0300491 return;
492
493 node_offset = fdt_node_offset_by_compatible(blob, 0, compat);
Anton Vorontsov015b27b2008-07-08 20:59:43 +0400494 if (node_offset < 0) {
Anton Vorontsov18e69a32008-03-14 23:20:18 +0300495 printf("WARNING: could not find compatible node %s: %s.\n",
496 compat, fdt_strerror(node_offset));
Anton Vorontsov015b27b2008-07-08 20:59:43 +0400497 return;
498 }
Anton Vorontsov18e69a32008-03-14 23:20:18 +0300499
Anton Vorontsov015b27b2008-07-08 20:59:43 +0400500 if (mode) {
501 err = fdt_setprop(blob, node_offset, prop_mode, mode,
502 strlen(mode) + 1);
503 if (err < 0)
504 printf("WARNING: could not set %s for %s: %s.\n",
505 prop_mode, compat, fdt_strerror(err));
506 }
507
508 if (type) {
509 err = fdt_setprop(blob, node_offset, prop_type, type,
510 strlen(type) + 1);
511 if (err < 0)
512 printf("WARNING: could not set %s for %s: %s.\n",
513 prop_type, compat, fdt_strerror(err));
514 }
Anton Vorontsov18e69a32008-03-14 23:20:18 +0300515}
516#endif /* CONFIG_HAS_FSL_DR_USB */
Kim Phillips6b70ffb2008-06-16 15:55:53 -0500517
Peter Tyser0f898602009-05-22 17:23:24 -0500518#if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx)
Kim Phillips6b70ffb2008-06-16 15:55:53 -0500519/*
520 * update crypto node properties to a specified revision of the SEC
521 * called with sec_rev == 0 if not on an mpc8xxxE processor
522 */
523void fdt_fixup_crypto_node(void *blob, int sec_rev)
524{
525 const struct sec_rev_prop {
526 u32 sec_rev;
527 u32 num_channels;
528 u32 channel_fifo_len;
529 u32 exec_units_mask;
530 u32 descriptor_types_mask;
531 } sec_rev_prop_list [] = {
532 { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */
533 { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */
534 { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */
535 { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */
536 { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */
537 { 0x0303, 4, 24, 0x97c, 0x03ab0abf }, /* SEC 3.3 */
538 };
539 char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) *
540 sizeof("fsl,secX.Y")];
541 int crypto_node, sec_idx, err;
542 char *p;
543 u32 val;
544
545 /* locate crypto node based on lowest common compatible */
546 crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0");
547 if (crypto_node == -FDT_ERR_NOTFOUND)
548 return;
549
550 /* delete it if not on an E-processor */
551 if (crypto_node > 0 && !sec_rev) {
552 fdt_del_node(blob, crypto_node);
553 return;
554 }
555
556 /* else we got called for possible uprev */
557 for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++)
558 if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev)
559 break;
560
561 if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) {
562 puts("warning: unknown SEC revision number\n");
563 return;
564 }
565
566 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels);
567 err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4);
568 if (err < 0)
569 printf("WARNING: could not set crypto property: %s\n",
570 fdt_strerror(err));
571
572 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask);
573 err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4);
574 if (err < 0)
575 printf("WARNING: could not set crypto property: %s\n",
576 fdt_strerror(err));
577
578 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask);
579 err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4);
580 if (err < 0)
581 printf("WARNING: could not set crypto property: %s\n",
582 fdt_strerror(err));
583
584 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len);
585 err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4);
586 if (err < 0)
587 printf("WARNING: could not set crypto property: %s\n",
588 fdt_strerror(err));
589
590 val = 0;
591 while (sec_idx >= 0) {
592 p = compat_strlist + val;
593 val += sprintf(p, "fsl,sec%d.%d",
594 (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8,
595 sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1;
596 sec_idx--;
597 }
598 err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val);
599 if (err < 0)
600 printf("WARNING: could not set crypto property: %s\n",
601 fdt_strerror(err));
602}
Peter Tyser0f898602009-05-22 17:23:24 -0500603#endif /* defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) */
Kumar Gala3082d232008-08-15 08:24:42 -0500604
605/* Resize the fdt to its actual size + a bit of padding */
606int fdt_resize(void *blob)
607{
608 int i;
609 uint64_t addr, size;
610 int total, ret;
611 uint actualsize;
612
613 if (!blob)
614 return 0;
615
616 total = fdt_num_mem_rsv(blob);
617 for (i = 0; i < total; i++) {
618 fdt_get_mem_rsv(blob, i, &addr, &size);
619 if (addr == (uint64_t)(u32)blob) {
620 fdt_del_mem_rsv(blob, i);
621 break;
622 }
623 }
624
Peter Korsgaardf242a082008-10-28 08:26:52 +0100625 /*
626 * Calculate the actual size of the fdt
Kumar Galad535a492009-10-21 23:29:51 -0500627 * plus the size needed for two fdt_add_mem_rsv, one
628 * for the fdt itself and one for a possible initrd
Peter Korsgaardf242a082008-10-28 08:26:52 +0100629 */
Kumar Gala3082d232008-08-15 08:24:42 -0500630 actualsize = fdt_off_dt_strings(blob) +
Kumar Galad535a492009-10-21 23:29:51 -0500631 fdt_size_dt_strings(blob) + 2*sizeof(struct fdt_reserve_entry);
Kumar Gala3082d232008-08-15 08:24:42 -0500632
633 /* Make it so the fdt ends on a page boundary */
Peter Korsgaardc088a102009-01-14 13:52:24 +0100634 actualsize = ALIGN(actualsize + ((uint)blob & 0xfff), 0x1000);
Kumar Gala3082d232008-08-15 08:24:42 -0500635 actualsize = actualsize - ((uint)blob & 0xfff);
636
637 /* Change the fdt header to reflect the correct size */
638 fdt_set_totalsize(blob, actualsize);
639
640 /* Add the new reservation */
641 ret = fdt_add_mem_rsv(blob, (uint)blob, actualsize);
642 if (ret < 0)
643 return ret;
644
645 return actualsize;
646}
Kumar Gala8ab451c2008-10-22 23:33:56 -0500647
648#ifdef CONFIG_PCI
Kumar Galacfd700b2009-08-05 09:03:54 -0500649#define CONFIG_SYS_PCI_NR_INBOUND_WIN 4
Kumar Gala8ab451c2008-10-22 23:33:56 -0500650
651#define FDT_PCI_PREFETCH (0x40000000)
652#define FDT_PCI_MEM32 (0x02000000)
653#define FDT_PCI_IO (0x01000000)
654#define FDT_PCI_MEM64 (0x03000000)
655
656int fdt_pci_dma_ranges(void *blob, int phb_off, struct pci_controller *hose) {
657
658 int addrcell, sizecell, len, r;
659 u32 *dma_range;
660 /* sized based on pci addr cells, size-cells, & address-cells */
661 u32 dma_ranges[(3 + 2 + 2) * CONFIG_SYS_PCI_NR_INBOUND_WIN];
662
663 addrcell = fdt_getprop_u32_default(blob, "/", "#address-cells", 1);
664 sizecell = fdt_getprop_u32_default(blob, "/", "#size-cells", 1);
665
666 dma_range = &dma_ranges[0];
667 for (r = 0; r < hose->region_count; r++) {
668 u64 bus_start, phys_start, size;
669
Kumar Galaff4e66e2009-02-06 09:49:31 -0600670 /* skip if !PCI_REGION_SYS_MEMORY */
671 if (!(hose->regions[r].flags & PCI_REGION_SYS_MEMORY))
Kumar Gala8ab451c2008-10-22 23:33:56 -0500672 continue;
673
674 bus_start = (u64)hose->regions[r].bus_start;
675 phys_start = (u64)hose->regions[r].phys_start;
676 size = (u64)hose->regions[r].size;
677
678 dma_range[0] = 0;
Kumar Galacfd700b2009-08-05 09:03:54 -0500679 if (size >= 0x100000000ull)
Kumar Gala8ab451c2008-10-22 23:33:56 -0500680 dma_range[0] |= FDT_PCI_MEM64;
681 else
682 dma_range[0] |= FDT_PCI_MEM32;
683 if (hose->regions[r].flags & PCI_REGION_PREFETCH)
684 dma_range[0] |= FDT_PCI_PREFETCH;
685#ifdef CONFIG_SYS_PCI_64BIT
686 dma_range[1] = bus_start >> 32;
687#else
688 dma_range[1] = 0;
689#endif
690 dma_range[2] = bus_start & 0xffffffff;
691
692 if (addrcell == 2) {
693 dma_range[3] = phys_start >> 32;
694 dma_range[4] = phys_start & 0xffffffff;
695 } else {
696 dma_range[3] = phys_start & 0xffffffff;
697 }
698
699 if (sizecell == 2) {
700 dma_range[3 + addrcell + 0] = size >> 32;
701 dma_range[3 + addrcell + 1] = size & 0xffffffff;
702 } else {
703 dma_range[3 + addrcell + 0] = size & 0xffffffff;
704 }
705
706 dma_range += (3 + addrcell + sizecell);
707 }
708
709 len = dma_range - &dma_ranges[0];
710 if (len)
711 fdt_setprop(blob, phb_off, "dma-ranges", &dma_ranges[0], len*4);
712
713 return 0;
714}
715#endif
Stefan Roese30d45c02009-10-21 11:59:52 +0200716
717#ifdef CONFIG_FDT_FIXUP_NOR_FLASH_SIZE
718/*
719 * This function can be used to update the size in the "reg" property
720 * of the NOR FLASH device nodes. This is necessary for boards with
721 * non-fixed NOR FLASH sizes.
722 */
723int fdt_fixup_nor_flash_size(void *blob, int cs, u32 size)
724{
725 char compat[][16] = { "cfi-flash", "jedec-flash" };
726 int off;
727 int len;
728 struct fdt_property *prop;
729 u32 *reg;
730 int i;
731
732 for (i = 0; i < 2; i++) {
733 off = fdt_node_offset_by_compatible(blob, -1, compat[i]);
734 while (off != -FDT_ERR_NOTFOUND) {
735 /*
736 * Found one compatible node, now check if this one
737 * has the correct CS
738 */
739 prop = fdt_get_property_w(blob, off, "reg", &len);
740 if (prop) {
741 reg = (u32 *)&prop->data[0];
742 if (reg[0] == cs) {
743 reg[2] = size;
744 fdt_setprop(blob, off, "reg", reg,
745 3 * sizeof(u32));
746
747 return 0;
748 }
749 }
750
751 /* Move to next compatible node */
752 off = fdt_node_offset_by_compatible(blob, off,
753 compat[i]);
754 }
755 }
756
757 return -1;
758}
759#endif
Anatolij Gustschin3c950e22010-03-16 17:10:05 +0100760
761#ifdef CONFIG_FDT_FIXUP_PARTITIONS
762#include <jffs2/load_kernel.h>
763#include <mtd_node.h>
764
765struct reg_cell {
766 unsigned int r0;
767 unsigned int r1;
768};
769
770int fdt_del_subnodes(const void *blob, int parent_offset)
771{
772 int off, ndepth;
773 int ret;
774
775 for (ndepth = 0, off = fdt_next_node(blob, parent_offset, &ndepth);
776 (off >= 0) && (ndepth > 0);
777 off = fdt_next_node(blob, off, &ndepth)) {
778 if (ndepth == 1) {
779 debug("delete %s: offset: %x\n",
780 fdt_get_name(blob, off, 0), off);
781 ret = fdt_del_node((void *)blob, off);
782 if (ret < 0) {
783 printf("Can't delete node: %s\n",
784 fdt_strerror(ret));
785 return ret;
786 } else {
787 ndepth = 0;
788 off = parent_offset;
789 }
790 }
791 }
792 return 0;
793}
794
795int fdt_increase_size(void *fdt, int add_len)
796{
797 int newlen;
798
799 newlen = fdt_totalsize(fdt) + add_len;
800
801 /* Open in place with a new len */
802 return fdt_open_into(fdt, fdt, newlen);
803}
804
805int fdt_del_partitions(void *blob, int parent_offset)
806{
807 const void *prop;
808 int ndepth = 0;
809 int off;
810 int ret;
811
812 off = fdt_next_node(blob, parent_offset, &ndepth);
813 if (off > 0 && ndepth == 1) {
814 prop = fdt_getprop(blob, off, "label", NULL);
815 if (prop == NULL) {
816 /*
817 * Could not find label property, nand {}; node?
818 * Check subnode, delete partitions there if any.
819 */
820 return fdt_del_partitions(blob, off);
821 } else {
822 ret = fdt_del_subnodes(blob, parent_offset);
823 if (ret < 0) {
824 printf("Can't remove subnodes: %s\n",
825 fdt_strerror(ret));
826 return ret;
827 }
828 }
829 }
830 return 0;
831}
832
833int fdt_node_set_part_info(void *blob, int parent_offset,
834 struct mtd_device *dev)
835{
836 struct list_head *pentry;
837 struct part_info *part;
838 struct reg_cell cell;
839 int off, ndepth = 0;
840 int part_num, ret;
841 char buf[64];
842
843 ret = fdt_del_partitions(blob, parent_offset);
844 if (ret < 0)
845 return ret;
846
847 /*
848 * Check if it is nand {}; subnode, adjust
849 * the offset in this case
850 */
851 off = fdt_next_node(blob, parent_offset, &ndepth);
852 if (off > 0 && ndepth == 1)
853 parent_offset = off;
854
855 part_num = 0;
856 list_for_each_prev(pentry, &dev->parts) {
857 int newoff;
858
859 part = list_entry(pentry, struct part_info, link);
860
861 debug("%2d: %-20s0x%08x\t0x%08x\t%d\n",
862 part_num, part->name, part->size,
863 part->offset, part->mask_flags);
864
865 sprintf(buf, "partition@%x", part->offset);
866add_sub:
867 ret = fdt_add_subnode(blob, parent_offset, buf);
868 if (ret == -FDT_ERR_NOSPACE) {
869 ret = fdt_increase_size(blob, 512);
870 if (!ret)
871 goto add_sub;
872 else
873 goto err_size;
874 } else if (ret < 0) {
875 printf("Can't add partition node: %s\n",
876 fdt_strerror(ret));
877 return ret;
878 }
879 newoff = ret;
880
881 /* Check MTD_WRITEABLE_CMD flag */
882 if (part->mask_flags & 1) {
883add_ro:
884 ret = fdt_setprop(blob, newoff, "read_only", NULL, 0);
885 if (ret == -FDT_ERR_NOSPACE) {
886 ret = fdt_increase_size(blob, 512);
887 if (!ret)
888 goto add_ro;
889 else
890 goto err_size;
891 } else if (ret < 0)
892 goto err_prop;
893 }
894
895 cell.r0 = cpu_to_fdt32(part->offset);
896 cell.r1 = cpu_to_fdt32(part->size);
897add_reg:
898 ret = fdt_setprop(blob, newoff, "reg", &cell, sizeof(cell));
899 if (ret == -FDT_ERR_NOSPACE) {
900 ret = fdt_increase_size(blob, 512);
901 if (!ret)
902 goto add_reg;
903 else
904 goto err_size;
905 } else if (ret < 0)
906 goto err_prop;
907
908add_label:
909 ret = fdt_setprop_string(blob, newoff, "label", part->name);
910 if (ret == -FDT_ERR_NOSPACE) {
911 ret = fdt_increase_size(blob, 512);
912 if (!ret)
913 goto add_label;
914 else
915 goto err_size;
916 } else if (ret < 0)
917 goto err_prop;
918
919 part_num++;
920 }
921 return 0;
922err_size:
923 printf("Can't increase blob size: %s\n", fdt_strerror(ret));
924 return ret;
925err_prop:
926 printf("Can't add property: %s\n", fdt_strerror(ret));
927 return ret;
928}
929
930/*
931 * Update partitions in nor/nand nodes using info from
932 * mtdparts environment variable. The nodes to update are
933 * specified by node_info structure which contains mtd device
934 * type and compatible string: E. g. the board code in
935 * ft_board_setup() could use:
936 *
937 * struct node_info nodes[] = {
938 * { "fsl,mpc5121-nfc", MTD_DEV_TYPE_NAND, },
939 * { "cfi-flash", MTD_DEV_TYPE_NOR, },
940 * };
941 *
942 * fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
943 */
944void fdt_fixup_mtdparts(void *blob, void *node_info, int node_info_size)
945{
946 struct node_info *ni = node_info;
947 struct mtd_device *dev;
948 char *parts;
949 int i, idx;
950 int noff;
951
952 parts = getenv("mtdparts");
953 if (!parts)
954 return;
955
956 if (mtdparts_init() != 0)
957 return;
958
959 for (i = 0; i < node_info_size; i++) {
960 idx = 0;
961 noff = fdt_node_offset_by_compatible(blob, -1, ni[i].compat);
962 while (noff != -FDT_ERR_NOTFOUND) {
963 debug("%s: %s, mtd dev type %d\n",
964 fdt_get_name(blob, noff, 0),
965 ni[i].compat, ni[i].type);
966 dev = device_find(ni[i].type, idx++);
967 if (dev) {
968 if (fdt_node_set_part_info(blob, noff, dev))
969 return; /* return on error */
970 }
971
972 /* Jump to next flash node */
973 noff = fdt_node_offset_by_compatible(blob, noff,
974 ni[i].compat);
975 }
976 }
977}
978#endif
Kumar Gala49b97d92010-03-30 10:19:26 -0500979
980void fdt_del_node_and_alias(void *blob, const char *alias)
981{
982 int off = fdt_path_offset(blob, alias);
983
984 if (off < 0)
985 return;
986
987 fdt_del_node(blob, off);
988
989 off = fdt_path_offset(blob, "/aliases");
990 fdt_delprop(blob, off, alias);
991}