2 * BCM47xx/BCM53xx nvram variable access
4 * Copyright (C) 2005 Broadcom Corporation
5 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
6 * Copyright (C) 2006 Michael Buesch <m@bues.ch>
7 * Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org>
8 * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
9 * Copyright (C) 2010-2014 Hauke Mehrtens <hauke@hauke-m.de>
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
17 #include <linux/types.h>
18 #include <linux/module.h>
19 #include <linux/kernel.h>
20 #include <linux/string.h>
21 #include <linux/of_address.h>
22 #include <linux/device.h>
23 #include <linux/platform_device.h>
24 #include <linux/of_platform.h>
26 #include <linux/ssb/ssb.h>
27 #include <linux/bcma/bcma.h>
28 #include <linux/bcm47xx_nvram.h>
29 #include <linux/if_ether.h>
30 #include <linux/etherdevice.h>
32 struct bcm47xx_sprom_fill {
35 int (*getenv)(const struct bcm47xx_sprom_fill *fill, const char *name,
36 char *val, size_t val_len);
40 static void create_key(const char *prefix, const char *postfix,
41 const char *name, char *buf, int len)
43 if (prefix && postfix)
44 snprintf(buf, len, "%s%s%s", prefix, name, postfix);
46 snprintf(buf, len, "%s%s", prefix, name);
48 snprintf(buf, len, "%s%s", name, postfix);
50 snprintf(buf, len, "%s", name);
53 static int get_nvram_var(const struct bcm47xx_sprom_fill *fill,
54 const char *postfix, const char *name, char *buf,
60 create_key(fill->prefix, postfix, name, key, sizeof(key));
62 err = fill->getenv(fill, key, buf, len);
63 if (fill->fallback && err == -ENOENT && fill->prefix) {
64 create_key(NULL, postfix, name, key, sizeof(key));
65 err = fill->getenv(fill, key, buf, len);
70 #define NVRAM_READ_VAL(type) \
71 static void nvram_read_ ## type (const struct bcm47xx_sprom_fill *fill, \
72 const char *postfix, const char *name, \
73 type *val, type allset) \
79 err = get_nvram_var(fill, postfix, name, buf, sizeof(buf)); \
82 err = kstrto ## type(strim(buf), 0, &var); \
84 pr_warn("can not parse nvram name %s%s%s with value %s got %i\n", \
85 fill->prefix, name, postfix, buf, err); \
88 if (allset && var == allset) \
100 static void nvram_read_u32_2(const struct bcm47xx_sprom_fill *fill,
101 const char *name, u16 *val_lo, u16 *val_hi)
107 err = get_nvram_var(fill, NULL, name, buf, sizeof(buf));
110 err = kstrtou32(strim(buf), 0, &val);
112 pr_warn("can not parse nvram name %s%s with value %s got %i\n",
113 fill->prefix, name, buf, err);
116 *val_lo = (val & 0x0000FFFFU);
117 *val_hi = (val & 0xFFFF0000U) >> 16;
120 static void nvram_read_leddc(const struct bcm47xx_sprom_fill *fill,
121 const char *name, u8 *leddc_on_time,
128 err = get_nvram_var(fill, NULL, name, buf, sizeof(buf));
131 err = kstrtou32(strim(buf), 0, &val);
133 pr_warn("can not parse nvram name %s%s with value %s got %i\n",
134 fill->prefix, name, buf, err);
138 if (val == 0xffff || val == 0xffffffff)
141 *leddc_on_time = val & 0xff;
142 *leddc_off_time = (val >> 16) & 0xff;
145 static void bcm47xx_nvram_parse_macaddr(char *buf, u8 macaddr[6])
147 if (strchr(buf, ':'))
148 sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0],
149 &macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
151 else if (strchr(buf, '-'))
152 sscanf(buf, "%hhx-%hhx-%hhx-%hhx-%hhx-%hhx", &macaddr[0],
153 &macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
156 pr_warn("Can not parse mac address: %s\n", buf);
159 static void nvram_read_macaddr(const struct bcm47xx_sprom_fill *fill,
160 const char *name, u8 val[6])
165 err = get_nvram_var(fill, NULL, name, buf, sizeof(buf));
169 bcm47xx_nvram_parse_macaddr(buf, val);
172 static void nvram_read_alpha2(const struct bcm47xx_sprom_fill *fill,
173 const char *name, char val[2])
178 err = get_nvram_var(fill, NULL, name, buf, sizeof(buf));
183 if (strlen(buf) > 2) {
184 pr_warn("alpha2 is too long %s\n", buf);
190 static void bcm47xx_sprom_fill_r1234589(struct ssb_sprom *sprom,
191 const struct bcm47xx_sprom_fill *fill)
193 nvram_read_u16(fill, NULL, "devid", &sprom->dev_id, 0);
194 nvram_read_u8(fill, NULL, "ledbh0", &sprom->gpio0, 0xff);
195 nvram_read_u8(fill, NULL, "ledbh1", &sprom->gpio1, 0xff);
196 nvram_read_u8(fill, NULL, "ledbh2", &sprom->gpio2, 0xff);
197 nvram_read_u8(fill, NULL, "ledbh3", &sprom->gpio3, 0xff);
198 nvram_read_u8(fill, NULL, "aa2g", &sprom->ant_available_bg, 0);
199 nvram_read_u8(fill, NULL, "aa5g", &sprom->ant_available_a, 0);
200 nvram_read_s8(fill, NULL, "ag0", &sprom->antenna_gain.a0, 0);
201 nvram_read_s8(fill, NULL, "ag1", &sprom->antenna_gain.a1, 0);
202 nvram_read_alpha2(fill, "ccode", sprom->alpha2);
205 static void bcm47xx_sprom_fill_r12389(struct ssb_sprom *sprom,
206 const struct bcm47xx_sprom_fill *fill)
208 nvram_read_u16(fill, NULL, "pa0b0", &sprom->pa0b0, 0);
209 nvram_read_u16(fill, NULL, "pa0b1", &sprom->pa0b1, 0);
210 nvram_read_u16(fill, NULL, "pa0b2", &sprom->pa0b2, 0);
211 nvram_read_u8(fill, NULL, "pa0itssit", &sprom->itssi_bg, 0);
212 nvram_read_u8(fill, NULL, "pa0maxpwr", &sprom->maxpwr_bg, 0);
213 nvram_read_u16(fill, NULL, "pa1b0", &sprom->pa1b0, 0);
214 nvram_read_u16(fill, NULL, "pa1b1", &sprom->pa1b1, 0);
215 nvram_read_u16(fill, NULL, "pa1b2", &sprom->pa1b2, 0);
216 nvram_read_u8(fill, NULL, "pa1itssit", &sprom->itssi_a, 0);
217 nvram_read_u8(fill, NULL, "pa1maxpwr", &sprom->maxpwr_a, 0);
220 static void bcm47xx_sprom_fill_r1(struct ssb_sprom *sprom,
221 const struct bcm47xx_sprom_fill *fill)
223 nvram_read_u16(fill, NULL, "boardflags", &sprom->boardflags_lo, 0);
224 nvram_read_u8(fill, NULL, "cc", &sprom->country_code, 0);
227 static void bcm47xx_sprom_fill_r2389(struct ssb_sprom *sprom,
228 const struct bcm47xx_sprom_fill *fill)
230 nvram_read_u8(fill, NULL, "opo", &sprom->opo, 0);
231 nvram_read_u16(fill, NULL, "pa1lob0", &sprom->pa1lob0, 0);
232 nvram_read_u16(fill, NULL, "pa1lob1", &sprom->pa1lob1, 0);
233 nvram_read_u16(fill, NULL, "pa1lob2", &sprom->pa1lob2, 0);
234 nvram_read_u16(fill, NULL, "pa1hib0", &sprom->pa1hib0, 0);
235 nvram_read_u16(fill, NULL, "pa1hib1", &sprom->pa1hib1, 0);
236 nvram_read_u16(fill, NULL, "pa1hib2", &sprom->pa1hib2, 0);
237 nvram_read_u8(fill, NULL, "pa1lomaxpwr", &sprom->maxpwr_al, 0);
238 nvram_read_u8(fill, NULL, "pa1himaxpwr", &sprom->maxpwr_ah, 0);
241 static void bcm47xx_sprom_fill_r389(struct ssb_sprom *sprom,
242 const struct bcm47xx_sprom_fill *fill)
244 nvram_read_u8(fill, NULL, "bxa2g", &sprom->bxa2g, 0);
245 nvram_read_u8(fill, NULL, "rssisav2g", &sprom->rssisav2g, 0);
246 nvram_read_u8(fill, NULL, "rssismc2g", &sprom->rssismc2g, 0);
247 nvram_read_u8(fill, NULL, "rssismf2g", &sprom->rssismf2g, 0);
248 nvram_read_u8(fill, NULL, "bxa5g", &sprom->bxa5g, 0);
249 nvram_read_u8(fill, NULL, "rssisav5g", &sprom->rssisav5g, 0);
250 nvram_read_u8(fill, NULL, "rssismc5g", &sprom->rssismc5g, 0);
251 nvram_read_u8(fill, NULL, "rssismf5g", &sprom->rssismf5g, 0);
252 nvram_read_u8(fill, NULL, "tri2g", &sprom->tri2g, 0);
253 nvram_read_u8(fill, NULL, "tri5g", &sprom->tri5g, 0);
254 nvram_read_u8(fill, NULL, "tri5gl", &sprom->tri5gl, 0);
255 nvram_read_u8(fill, NULL, "tri5gh", &sprom->tri5gh, 0);
256 nvram_read_s8(fill, NULL, "rxpo2g", &sprom->rxpo2g, 0);
257 nvram_read_s8(fill, NULL, "rxpo5g", &sprom->rxpo5g, 0);
260 static void bcm47xx_sprom_fill_r3(struct ssb_sprom *sprom,
261 const struct bcm47xx_sprom_fill *fill)
263 nvram_read_u8(fill, NULL, "regrev", &sprom->regrev, 0);
264 nvram_read_leddc(fill, "leddc", &sprom->leddc_on_time,
265 &sprom->leddc_off_time);
268 static void bcm47xx_sprom_fill_r4589(struct ssb_sprom *sprom,
269 const struct bcm47xx_sprom_fill *fill)
271 nvram_read_u8(fill, NULL, "regrev", &sprom->regrev, 0);
272 nvram_read_s8(fill, NULL, "ag2", &sprom->antenna_gain.a2, 0);
273 nvram_read_s8(fill, NULL, "ag3", &sprom->antenna_gain.a3, 0);
274 nvram_read_u8(fill, NULL, "txchain", &sprom->txchain, 0xf);
275 nvram_read_u8(fill, NULL, "rxchain", &sprom->rxchain, 0xf);
276 nvram_read_u8(fill, NULL, "antswitch", &sprom->antswitch, 0xff);
277 nvram_read_leddc(fill, "leddc", &sprom->leddc_on_time,
278 &sprom->leddc_off_time);
281 static void bcm47xx_sprom_fill_r458(struct ssb_sprom *sprom,
282 const struct bcm47xx_sprom_fill *fill)
284 nvram_read_u16(fill, NULL, "cck2gpo", &sprom->cck2gpo, 0);
285 nvram_read_u32(fill, NULL, "ofdm2gpo", &sprom->ofdm2gpo, 0);
286 nvram_read_u32(fill, NULL, "ofdm5gpo", &sprom->ofdm5gpo, 0);
287 nvram_read_u32(fill, NULL, "ofdm5glpo", &sprom->ofdm5glpo, 0);
288 nvram_read_u32(fill, NULL, "ofdm5ghpo", &sprom->ofdm5ghpo, 0);
289 nvram_read_u16(fill, NULL, "cddpo", &sprom->cddpo, 0);
290 nvram_read_u16(fill, NULL, "stbcpo", &sprom->stbcpo, 0);
291 nvram_read_u16(fill, NULL, "bw40po", &sprom->bw40po, 0);
292 nvram_read_u16(fill, NULL, "bwduppo", &sprom->bwduppo, 0);
293 nvram_read_u16(fill, NULL, "mcs2gpo0", &sprom->mcs2gpo[0], 0);
294 nvram_read_u16(fill, NULL, "mcs2gpo1", &sprom->mcs2gpo[1], 0);
295 nvram_read_u16(fill, NULL, "mcs2gpo2", &sprom->mcs2gpo[2], 0);
296 nvram_read_u16(fill, NULL, "mcs2gpo3", &sprom->mcs2gpo[3], 0);
297 nvram_read_u16(fill, NULL, "mcs2gpo4", &sprom->mcs2gpo[4], 0);
298 nvram_read_u16(fill, NULL, "mcs2gpo5", &sprom->mcs2gpo[5], 0);
299 nvram_read_u16(fill, NULL, "mcs2gpo6", &sprom->mcs2gpo[6], 0);
300 nvram_read_u16(fill, NULL, "mcs2gpo7", &sprom->mcs2gpo[7], 0);
301 nvram_read_u16(fill, NULL, "mcs5gpo0", &sprom->mcs5gpo[0], 0);
302 nvram_read_u16(fill, NULL, "mcs5gpo1", &sprom->mcs5gpo[1], 0);
303 nvram_read_u16(fill, NULL, "mcs5gpo2", &sprom->mcs5gpo[2], 0);
304 nvram_read_u16(fill, NULL, "mcs5gpo3", &sprom->mcs5gpo[3], 0);
305 nvram_read_u16(fill, NULL, "mcs5gpo4", &sprom->mcs5gpo[4], 0);
306 nvram_read_u16(fill, NULL, "mcs5gpo5", &sprom->mcs5gpo[5], 0);
307 nvram_read_u16(fill, NULL, "mcs5gpo6", &sprom->mcs5gpo[6], 0);
308 nvram_read_u16(fill, NULL, "mcs5gpo7", &sprom->mcs5gpo[7], 0);
309 nvram_read_u16(fill, NULL, "mcs5glpo0", &sprom->mcs5glpo[0], 0);
310 nvram_read_u16(fill, NULL, "mcs5glpo1", &sprom->mcs5glpo[1], 0);
311 nvram_read_u16(fill, NULL, "mcs5glpo2", &sprom->mcs5glpo[2], 0);
312 nvram_read_u16(fill, NULL, "mcs5glpo3", &sprom->mcs5glpo[3], 0);
313 nvram_read_u16(fill, NULL, "mcs5glpo4", &sprom->mcs5glpo[4], 0);
314 nvram_read_u16(fill, NULL, "mcs5glpo5", &sprom->mcs5glpo[5], 0);
315 nvram_read_u16(fill, NULL, "mcs5glpo6", &sprom->mcs5glpo[6], 0);
316 nvram_read_u16(fill, NULL, "mcs5glpo7", &sprom->mcs5glpo[7], 0);
317 nvram_read_u16(fill, NULL, "mcs5ghpo0", &sprom->mcs5ghpo[0], 0);
318 nvram_read_u16(fill, NULL, "mcs5ghpo1", &sprom->mcs5ghpo[1], 0);
319 nvram_read_u16(fill, NULL, "mcs5ghpo2", &sprom->mcs5ghpo[2], 0);
320 nvram_read_u16(fill, NULL, "mcs5ghpo3", &sprom->mcs5ghpo[3], 0);
321 nvram_read_u16(fill, NULL, "mcs5ghpo4", &sprom->mcs5ghpo[4], 0);
322 nvram_read_u16(fill, NULL, "mcs5ghpo5", &sprom->mcs5ghpo[5], 0);
323 nvram_read_u16(fill, NULL, "mcs5ghpo6", &sprom->mcs5ghpo[6], 0);
324 nvram_read_u16(fill, NULL, "mcs5ghpo7", &sprom->mcs5ghpo[7], 0);
327 static void bcm47xx_sprom_fill_r45(struct ssb_sprom *sprom,
328 const struct bcm47xx_sprom_fill *fill)
330 nvram_read_u8(fill, NULL, "txpid2ga0", &sprom->txpid2g[0], 0);
331 nvram_read_u8(fill, NULL, "txpid2ga1", &sprom->txpid2g[1], 0);
332 nvram_read_u8(fill, NULL, "txpid2ga2", &sprom->txpid2g[2], 0);
333 nvram_read_u8(fill, NULL, "txpid2ga3", &sprom->txpid2g[3], 0);
334 nvram_read_u8(fill, NULL, "txpid5ga0", &sprom->txpid5g[0], 0);
335 nvram_read_u8(fill, NULL, "txpid5ga1", &sprom->txpid5g[1], 0);
336 nvram_read_u8(fill, NULL, "txpid5ga2", &sprom->txpid5g[2], 0);
337 nvram_read_u8(fill, NULL, "txpid5ga3", &sprom->txpid5g[3], 0);
338 nvram_read_u8(fill, NULL, "txpid5gla0", &sprom->txpid5gl[0], 0);
339 nvram_read_u8(fill, NULL, "txpid5gla1", &sprom->txpid5gl[1], 0);
340 nvram_read_u8(fill, NULL, "txpid5gla2", &sprom->txpid5gl[2], 0);
341 nvram_read_u8(fill, NULL, "txpid5gla3", &sprom->txpid5gl[3], 0);
342 nvram_read_u8(fill, NULL, "txpid5gha0", &sprom->txpid5gh[0], 0);
343 nvram_read_u8(fill, NULL, "txpid5gha1", &sprom->txpid5gh[1], 0);
344 nvram_read_u8(fill, NULL, "txpid5gha2", &sprom->txpid5gh[2], 0);
345 nvram_read_u8(fill, NULL, "txpid5gha3", &sprom->txpid5gh[3], 0);
348 static void bcm47xx_sprom_fill_r89(struct ssb_sprom *sprom,
349 const struct bcm47xx_sprom_fill *fill)
351 nvram_read_u8(fill, NULL, "tssipos2g", &sprom->fem.ghz2.tssipos, 0);
352 nvram_read_u8(fill, NULL, "extpagain2g", &sprom->fem.ghz2.extpa_gain, 0);
353 nvram_read_u8(fill, NULL, "pdetrange2g", &sprom->fem.ghz2.pdet_range, 0);
354 nvram_read_u8(fill, NULL, "triso2g", &sprom->fem.ghz2.tr_iso, 0);
355 nvram_read_u8(fill, NULL, "antswctl2g", &sprom->fem.ghz2.antswlut, 0);
356 nvram_read_u8(fill, NULL, "tssipos5g", &sprom->fem.ghz5.tssipos, 0);
357 nvram_read_u8(fill, NULL, "extpagain5g", &sprom->fem.ghz5.extpa_gain, 0);
358 nvram_read_u8(fill, NULL, "pdetrange5g", &sprom->fem.ghz5.pdet_range, 0);
359 nvram_read_u8(fill, NULL, "triso5g", &sprom->fem.ghz5.tr_iso, 0);
360 nvram_read_u8(fill, NULL, "antswctl5g", &sprom->fem.ghz5.antswlut, 0);
361 nvram_read_u8(fill, NULL, "tempthresh", &sprom->tempthresh, 0);
362 nvram_read_u8(fill, NULL, "tempoffset", &sprom->tempoffset, 0);
363 nvram_read_u16(fill, NULL, "rawtempsense", &sprom->rawtempsense, 0);
364 nvram_read_u8(fill, NULL, "measpower", &sprom->measpower, 0);
365 nvram_read_u8(fill, NULL, "tempsense_slope", &sprom->tempsense_slope, 0);
366 nvram_read_u8(fill, NULL, "tempcorrx", &sprom->tempcorrx, 0);
367 nvram_read_u8(fill, NULL, "tempsense_option", &sprom->tempsense_option, 0);
368 nvram_read_u8(fill, NULL, "freqoffset_corr", &sprom->freqoffset_corr, 0);
369 nvram_read_u8(fill, NULL, "iqcal_swp_dis", &sprom->iqcal_swp_dis, 0);
370 nvram_read_u8(fill, NULL, "hw_iqcal_en", &sprom->hw_iqcal_en, 0);
371 nvram_read_u8(fill, NULL, "elna2g", &sprom->elna2g, 0);
372 nvram_read_u8(fill, NULL, "elna5g", &sprom->elna5g, 0);
373 nvram_read_u8(fill, NULL, "phycal_tempdelta", &sprom->phycal_tempdelta, 0);
374 nvram_read_u8(fill, NULL, "temps_period", &sprom->temps_period, 0);
375 nvram_read_u8(fill, NULL, "temps_hysteresis", &sprom->temps_hysteresis, 0);
376 nvram_read_u8(fill, NULL, "measpower1", &sprom->measpower1, 0);
377 nvram_read_u8(fill, NULL, "measpower2", &sprom->measpower2, 0);
378 nvram_read_u8(fill, NULL, "rxgainerr2ga0", &sprom->rxgainerr2ga[0], 0);
379 nvram_read_u8(fill, NULL, "rxgainerr2ga1", &sprom->rxgainerr2ga[1], 0);
380 nvram_read_u8(fill, NULL, "rxgainerr2ga2", &sprom->rxgainerr2ga[2], 0);
381 nvram_read_u8(fill, NULL, "rxgainerr5gla0", &sprom->rxgainerr5gla[0], 0);
382 nvram_read_u8(fill, NULL, "rxgainerr5gla1", &sprom->rxgainerr5gla[1], 0);
383 nvram_read_u8(fill, NULL, "rxgainerr5gla2", &sprom->rxgainerr5gla[2], 0);
384 nvram_read_u8(fill, NULL, "rxgainerr5gma0", &sprom->rxgainerr5gma[0], 0);
385 nvram_read_u8(fill, NULL, "rxgainerr5gma1", &sprom->rxgainerr5gma[1], 0);
386 nvram_read_u8(fill, NULL, "rxgainerr5gma2", &sprom->rxgainerr5gma[2], 0);
387 nvram_read_u8(fill, NULL, "rxgainerr5gha0", &sprom->rxgainerr5gha[0], 0);
388 nvram_read_u8(fill, NULL, "rxgainerr5gha1", &sprom->rxgainerr5gha[1], 0);
389 nvram_read_u8(fill, NULL, "rxgainerr5gha2", &sprom->rxgainerr5gha[2], 0);
390 nvram_read_u8(fill, NULL, "rxgainerr5gua0", &sprom->rxgainerr5gua[0], 0);
391 nvram_read_u8(fill, NULL, "rxgainerr5gua1", &sprom->rxgainerr5gua[1], 0);
392 nvram_read_u8(fill, NULL, "rxgainerr5gua2", &sprom->rxgainerr5gua[2], 0);
393 nvram_read_u8(fill, NULL, "noiselvl2ga0", &sprom->noiselvl2ga[0], 0);
394 nvram_read_u8(fill, NULL, "noiselvl2ga1", &sprom->noiselvl2ga[1], 0);
395 nvram_read_u8(fill, NULL, "noiselvl2ga2", &sprom->noiselvl2ga[2], 0);
396 nvram_read_u8(fill, NULL, "noiselvl5gla0", &sprom->noiselvl5gla[0], 0);
397 nvram_read_u8(fill, NULL, "noiselvl5gla1", &sprom->noiselvl5gla[1], 0);
398 nvram_read_u8(fill, NULL, "noiselvl5gla2", &sprom->noiselvl5gla[2], 0);
399 nvram_read_u8(fill, NULL, "noiselvl5gma0", &sprom->noiselvl5gma[0], 0);
400 nvram_read_u8(fill, NULL, "noiselvl5gma1", &sprom->noiselvl5gma[1], 0);
401 nvram_read_u8(fill, NULL, "noiselvl5gma2", &sprom->noiselvl5gma[2], 0);
402 nvram_read_u8(fill, NULL, "noiselvl5gha0", &sprom->noiselvl5gha[0], 0);
403 nvram_read_u8(fill, NULL, "noiselvl5gha1", &sprom->noiselvl5gha[1], 0);
404 nvram_read_u8(fill, NULL, "noiselvl5gha2", &sprom->noiselvl5gha[2], 0);
405 nvram_read_u8(fill, NULL, "noiselvl5gua0", &sprom->noiselvl5gua[0], 0);
406 nvram_read_u8(fill, NULL, "noiselvl5gua1", &sprom->noiselvl5gua[1], 0);
407 nvram_read_u8(fill, NULL, "noiselvl5gua2", &sprom->noiselvl5gua[2], 0);
408 nvram_read_u8(fill, NULL, "pcieingress_war", &sprom->pcieingress_war, 0);
411 static void bcm47xx_sprom_fill_r9(struct ssb_sprom *sprom,
412 const struct bcm47xx_sprom_fill *fill)
414 nvram_read_u16(fill, NULL, "cckbw202gpo", &sprom->cckbw202gpo, 0);
415 nvram_read_u16(fill, NULL, "cckbw20ul2gpo", &sprom->cckbw20ul2gpo, 0);
416 nvram_read_u32(fill, NULL, "legofdmbw202gpo", &sprom->legofdmbw202gpo, 0);
417 nvram_read_u32(fill, NULL, "legofdmbw20ul2gpo", &sprom->legofdmbw20ul2gpo, 0);
418 nvram_read_u32(fill, NULL, "legofdmbw205glpo", &sprom->legofdmbw205glpo, 0);
419 nvram_read_u32(fill, NULL, "legofdmbw20ul5glpo", &sprom->legofdmbw20ul5glpo, 0);
420 nvram_read_u32(fill, NULL, "legofdmbw205gmpo", &sprom->legofdmbw205gmpo, 0);
421 nvram_read_u32(fill, NULL, "legofdmbw20ul5gmpo", &sprom->legofdmbw20ul5gmpo, 0);
422 nvram_read_u32(fill, NULL, "legofdmbw205ghpo", &sprom->legofdmbw205ghpo, 0);
423 nvram_read_u32(fill, NULL, "legofdmbw20ul5ghpo", &sprom->legofdmbw20ul5ghpo, 0);
424 nvram_read_u32(fill, NULL, "mcsbw202gpo", &sprom->mcsbw202gpo, 0);
425 nvram_read_u32(fill, NULL, "mcsbw20ul2gpo", &sprom->mcsbw20ul2gpo, 0);
426 nvram_read_u32(fill, NULL, "mcsbw402gpo", &sprom->mcsbw402gpo, 0);
427 nvram_read_u32(fill, NULL, "mcsbw205glpo", &sprom->mcsbw205glpo, 0);
428 nvram_read_u32(fill, NULL, "mcsbw20ul5glpo", &sprom->mcsbw20ul5glpo, 0);
429 nvram_read_u32(fill, NULL, "mcsbw405glpo", &sprom->mcsbw405glpo, 0);
430 nvram_read_u32(fill, NULL, "mcsbw205gmpo", &sprom->mcsbw205gmpo, 0);
431 nvram_read_u32(fill, NULL, "mcsbw20ul5gmpo", &sprom->mcsbw20ul5gmpo, 0);
432 nvram_read_u32(fill, NULL, "mcsbw405gmpo", &sprom->mcsbw405gmpo, 0);
433 nvram_read_u32(fill, NULL, "mcsbw205ghpo", &sprom->mcsbw205ghpo, 0);
434 nvram_read_u32(fill, NULL, "mcsbw20ul5ghpo", &sprom->mcsbw20ul5ghpo, 0);
435 nvram_read_u32(fill, NULL, "mcsbw405ghpo", &sprom->mcsbw405ghpo, 0);
436 nvram_read_u16(fill, NULL, "mcs32po", &sprom->mcs32po, 0);
437 nvram_read_u16(fill, NULL, "legofdm40duppo", &sprom->legofdm40duppo, 0);
438 nvram_read_u8(fill, NULL, "sar2g", &sprom->sar2g, 0);
439 nvram_read_u8(fill, NULL, "sar5g", &sprom->sar5g, 0);
442 static void bcm47xx_sprom_fill_path_r4589(struct ssb_sprom *sprom,
443 const struct bcm47xx_sprom_fill *fill)
448 for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
449 struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
451 snprintf(postfix, sizeof(postfix), "%i", i);
452 nvram_read_u8(fill, postfix, "maxp2ga", &pwr_info->maxpwr_2g, 0);
453 nvram_read_u8(fill, postfix, "itt2ga", &pwr_info->itssi_2g, 0);
454 nvram_read_u8(fill, postfix, "itt5ga", &pwr_info->itssi_5g, 0);
455 nvram_read_u16(fill, postfix, "pa2gw0a", &pwr_info->pa_2g[0], 0);
456 nvram_read_u16(fill, postfix, "pa2gw1a", &pwr_info->pa_2g[1], 0);
457 nvram_read_u16(fill, postfix, "pa2gw2a", &pwr_info->pa_2g[2], 0);
458 nvram_read_u8(fill, postfix, "maxp5ga", &pwr_info->maxpwr_5g, 0);
459 nvram_read_u8(fill, postfix, "maxp5gha", &pwr_info->maxpwr_5gh, 0);
460 nvram_read_u8(fill, postfix, "maxp5gla", &pwr_info->maxpwr_5gl, 0);
461 nvram_read_u16(fill, postfix, "pa5gw0a", &pwr_info->pa_5g[0], 0);
462 nvram_read_u16(fill, postfix, "pa5gw1a", &pwr_info->pa_5g[1], 0);
463 nvram_read_u16(fill, postfix, "pa5gw2a", &pwr_info->pa_5g[2], 0);
464 nvram_read_u16(fill, postfix, "pa5glw0a", &pwr_info->pa_5gl[0], 0);
465 nvram_read_u16(fill, postfix, "pa5glw1a", &pwr_info->pa_5gl[1], 0);
466 nvram_read_u16(fill, postfix, "pa5glw2a", &pwr_info->pa_5gl[2], 0);
467 nvram_read_u16(fill, postfix, "pa5ghw0a", &pwr_info->pa_5gh[0], 0);
468 nvram_read_u16(fill, postfix, "pa5ghw1a", &pwr_info->pa_5gh[1], 0);
469 nvram_read_u16(fill, postfix, "pa5ghw2a", &pwr_info->pa_5gh[2], 0);
473 static void bcm47xx_sprom_fill_path_r45(struct ssb_sprom *sprom,
474 const struct bcm47xx_sprom_fill *fill)
479 for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
480 struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
482 snprintf(postfix, sizeof(postfix), "%i", i);
483 nvram_read_u16(fill, postfix, "pa2gw3a", &pwr_info->pa_2g[3], 0);
484 nvram_read_u16(fill, postfix, "pa5gw3a", &pwr_info->pa_5g[3], 0);
485 nvram_read_u16(fill, postfix, "pa5glw3a", &pwr_info->pa_5gl[3], 0);
486 nvram_read_u16(fill, postfix, "pa5ghw3a", &pwr_info->pa_5gh[3], 0);
490 static bool bcm47xx_is_valid_mac(u8 *mac)
492 return mac && !(mac[0] == 0x00 && mac[1] == 0x90 && mac[2] == 0x4c);
495 static int bcm47xx_increase_mac_addr(u8 *mac, u8 num)
497 u8 *oui = mac + ETH_ALEN/2 - 1;
498 u8 *p = mac + ETH_ALEN - 1;
509 pr_err("unable to fetch mac address\n");
516 * This is a global counter because different instances of sprom will
517 * access the same nvram.
519 static int mac_addr_used = 2;
521 static void bcm47xx_sprom_fill_ethernet(struct ssb_sprom *sprom,
522 const struct bcm47xx_sprom_fill *fill)
524 nvram_read_macaddr(fill, "et0macaddr", sprom->et0mac);
525 nvram_read_u8(fill, NULL, "et0mdcport", &sprom->et0mdcport, 0);
526 nvram_read_u8(fill, NULL, "et0phyaddr", &sprom->et0phyaddr, 0);
528 nvram_read_macaddr(fill, "et1macaddr", sprom->et1mac);
529 nvram_read_u8(fill, NULL, "et1mdcport", &sprom->et1mdcport, 0);
530 nvram_read_u8(fill, NULL, "et1phyaddr", &sprom->et1phyaddr, 0);
532 nvram_read_macaddr(fill, "macaddr", sprom->il0mac);
533 nvram_read_macaddr(fill, "il0macaddr", sprom->il0mac);
536 * The address prefix 00:90:4C is used by Broadcom in their initial
537 * configuration. When a mac address with the prefix 00:90:4C is used
538 * all devices from the same series are sharing the same mac address.
539 * To prevent mac address collisions we replace them with a mac address
540 * based on the base address.
542 if (!bcm47xx_is_valid_mac(sprom->il0mac)) {
544 struct bcm47xx_sprom_fill fill_no_prefix;
546 memcpy(&fill_no_prefix, fill, sizeof(fill_no_prefix));
547 fill_no_prefix.prefix = NULL;
549 nvram_read_macaddr(&fill_no_prefix, "et0macaddr", mac);
550 if (bcm47xx_is_valid_mac(mac)) {
551 int err = bcm47xx_increase_mac_addr(mac, mac_addr_used);
554 ether_addr_copy(sprom->il0mac, mac);
561 static void bcm47xx_sprom_fill_board_data(struct ssb_sprom *sprom,
562 const struct bcm47xx_sprom_fill *fill)
564 nvram_read_u16(fill, NULL, "boardrev", &sprom->board_rev, 0);
565 nvram_read_u16(fill, NULL, "boardnum", &sprom->board_num, 0);
566 nvram_read_u16(fill, NULL, "boardtype", &sprom->board_type, 0);
567 nvram_read_u32_2(fill, "boardflags", &sprom->boardflags_lo,
568 &sprom->boardflags_hi);
569 nvram_read_u32_2(fill, "boardflags2", &sprom->boardflags2_lo,
570 &sprom->boardflags2_hi);
573 static void bcm47xx_sprom_fill(struct ssb_sprom *sprom,
574 const struct bcm47xx_sprom_fill *fill)
576 bcm47xx_sprom_fill_ethernet(sprom, fill);
577 bcm47xx_sprom_fill_board_data(sprom, fill);
579 nvram_read_u8(fill, NULL, "sromrev", &sprom->revision, 0);
581 switch (sprom->revision) {
583 bcm47xx_sprom_fill_r1234589(sprom, fill);
584 bcm47xx_sprom_fill_r12389(sprom, fill);
585 bcm47xx_sprom_fill_r1(sprom, fill);
588 bcm47xx_sprom_fill_r1234589(sprom, fill);
589 bcm47xx_sprom_fill_r12389(sprom, fill);
590 bcm47xx_sprom_fill_r2389(sprom, fill);
593 bcm47xx_sprom_fill_r1234589(sprom, fill);
594 bcm47xx_sprom_fill_r12389(sprom, fill);
595 bcm47xx_sprom_fill_r2389(sprom, fill);
596 bcm47xx_sprom_fill_r389(sprom, fill);
597 bcm47xx_sprom_fill_r3(sprom, fill);
601 bcm47xx_sprom_fill_r1234589(sprom, fill);
602 bcm47xx_sprom_fill_r4589(sprom, fill);
603 bcm47xx_sprom_fill_r458(sprom, fill);
604 bcm47xx_sprom_fill_r45(sprom, fill);
605 bcm47xx_sprom_fill_path_r4589(sprom, fill);
606 bcm47xx_sprom_fill_path_r45(sprom, fill);
609 bcm47xx_sprom_fill_r1234589(sprom, fill);
610 bcm47xx_sprom_fill_r12389(sprom, fill);
611 bcm47xx_sprom_fill_r2389(sprom, fill);
612 bcm47xx_sprom_fill_r389(sprom, fill);
613 bcm47xx_sprom_fill_r4589(sprom, fill);
614 bcm47xx_sprom_fill_r458(sprom, fill);
615 bcm47xx_sprom_fill_r89(sprom, fill);
616 bcm47xx_sprom_fill_path_r4589(sprom, fill);
619 bcm47xx_sprom_fill_r1234589(sprom, fill);
620 bcm47xx_sprom_fill_r12389(sprom, fill);
621 bcm47xx_sprom_fill_r2389(sprom, fill);
622 bcm47xx_sprom_fill_r389(sprom, fill);
623 bcm47xx_sprom_fill_r4589(sprom, fill);
624 bcm47xx_sprom_fill_r89(sprom, fill);
625 bcm47xx_sprom_fill_r9(sprom, fill);
626 bcm47xx_sprom_fill_path_r4589(sprom, fill);
629 pr_warn("Unsupported SPROM revision %d detected. Will extract v1\n",
632 bcm47xx_sprom_fill_r1234589(sprom, fill);
633 bcm47xx_sprom_fill_r12389(sprom, fill);
634 bcm47xx_sprom_fill_r1(sprom, fill);
638 static int bcm47xx_sprom_getenv(const struct bcm47xx_sprom_fill *fill,
639 const char *name, char *val, size_t val_len)
641 return bcm47xx_nvram_getenv(name, val, val_len);
644 /* FIXME: This should not be static, but some callback argument */
645 static struct platform_device *sprom_pdev = NULL;
647 static char prefix[20];
649 static void bcm47xx_sprom_apply_prefix_alias(char *prefix, size_t prefix_len)
651 size_t needle_len = strlen(prefix) - 1;
656 if (needle_len <= 0 || prefix[needle_len] != '/')
659 for (i = 0; i < 3; i++) {
660 if (snprintf(nvram_var, sizeof(nvram_var), "devpath%d", i) <= 0)
662 if (bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf)) < 0)
664 if (strlen(buf) == needle_len && !strncmp(buf, prefix, needle_len)) {
665 snprintf(prefix, prefix_len, "%d:", i);
672 * This function has to be called in a very precise moment. It has to be done:
673 * 1) After bcma registers flash cores, so we can read NVRAM.
674 * 2) Before any code needs SPROM content.
676 * This can be achieved only by using bcma callback.
678 static int bcm47xx_sprom_init(struct bcma_bus *bus, struct ssb_sprom *out)
680 struct platform_device *pdev = sprom_pdev;
681 struct device *dev = &pdev->dev;
682 struct device_node *np = dev->of_node;
683 const __be32 *handle;
684 struct device_node *nvram_node;
685 struct platform_device *nvram_dev;
686 struct bcm47xx_sprom_fill fill;
688 handle = of_get_property(np, "nvram", NULL);
692 nvram_node = of_find_node_by_phandle(be32_to_cpup(handle));
696 nvram_dev = of_find_device_by_node(nvram_node);
700 switch (bus->hosttype) {
701 case BCMA_HOSTTYPE_PCI:
702 snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
703 pci_domain_nr(bus->host_pci->bus) + 1,
704 bus->host_pci->bus->number);
705 bcm47xx_sprom_apply_prefix_alias(prefix, sizeof(prefix));
706 fill.prefix = prefix;
708 case BCMA_HOSTTYPE_SOC:
709 fill.prefix = of_get_property(np, "prefix", NULL);
712 pr_err("Unable to fill SPROM for given hosttype.\n");
716 fill.fallback = false;
717 fill.getenv = bcm47xx_sprom_getenv;
718 fill.priv = nvram_dev;
720 bcm47xx_sprom_fill(out, &fill);
725 static int bcm47xx_sprom_probe(struct platform_device *pdev)
727 /* This is the only way to make pdev accessible to the callback */
730 return bcma_arch_register_fallback_sprom(&bcm47xx_sprom_init);
733 static const struct of_device_id bcm47xx_sprom_of_match_table[] = {
734 { .compatible = "brcm,bcm47xx-sprom", },
737 MODULE_DEVICE_TABLE(of, mvebu_pcie_of_match_table);
739 static struct platform_driver bcm47xx_sprom_driver = {
741 .owner = THIS_MODULE,
742 .name = "bcm47xx-sprom",
743 .of_match_table = bcm47xx_sprom_of_match_table,
744 /* driver unloading/unbinding currently not supported */
745 .suppress_bind_attrs = true,
747 .probe = bcm47xx_sprom_probe,
749 module_platform_driver(bcm47xx_sprom_driver);
751 MODULE_AUTHOR("Hauke Mehrtens <hauke@hauke-m.de>");
752 MODULE_LICENSE("GPL v2");