1 /*
2 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
3 * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
4 * Copyright (C) 2006 Michael Buesch <m@bues.ch>
5 * Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org>
6 * Copyright (C) 2010-2012 Hauke Mehrtens <hauke@hauke-m.de>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
16 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
19 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 *
24 * You should have received a copy of the GNU General Public License along
25 * with this program; if not, write to the Free Software Foundation, Inc.,
26 * 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28
29 #include <linux/bcm47xx_nvram.h>
30 #include <linux/bcm47xx_sprom.h>
31 #include <linux/bcma/bcma.h>
32 #include <linux/etherdevice.h>
33 #include <linux/hex.h>
34 #include <linux/if_ether.h>
35 #include <linux/ssb/ssb.h>
36
create_key(const char * prefix,const char * postfix,const char * name,char * buf,int len)37 static void create_key(const char *prefix, const char *postfix,
38 const char *name, char *buf, int len)
39 {
40 if (prefix && postfix)
41 snprintf(buf, len, "%s%s%s", prefix, name, postfix);
42 else if (prefix)
43 snprintf(buf, len, "%s%s", prefix, name);
44 else if (postfix)
45 snprintf(buf, len, "%s%s", name, postfix);
46 else
47 snprintf(buf, len, "%s", name);
48 }
49
get_nvram_var(const char * prefix,const char * postfix,const char * name,char * buf,int len,bool fallback)50 static int get_nvram_var(const char *prefix, const char *postfix,
51 const char *name, char *buf, int len, bool fallback)
52 {
53 char key[40];
54 int err;
55
56 create_key(prefix, postfix, name, key, sizeof(key));
57
58 err = bcm47xx_nvram_getenv(key, buf, len);
59 if (fallback && err == -ENOENT && prefix) {
60 create_key(NULL, postfix, name, key, sizeof(key));
61 err = bcm47xx_nvram_getenv(key, buf, len);
62 }
63 return err;
64 }
65
66 #define NVRAM_READ_VAL(type) \
67 static void nvram_read_ ## type(const char *prefix, \
68 const char *postfix, const char *name, \
69 type *val, type allset, bool fallback) \
70 { \
71 char buf[100]; \
72 int err; \
73 type var; \
74 \
75 err = get_nvram_var(prefix, postfix, name, buf, sizeof(buf), \
76 fallback); \
77 if (err < 0) \
78 return; \
79 err = kstrto ## type(strim(buf), 0, &var); \
80 if (err) { \
81 pr_warn("can not parse nvram name %s%s%s with value %s got %i\n", \
82 prefix, name, postfix, buf, err); \
83 return; \
84 } \
85 if (allset && var == allset) \
86 return; \
87 *val = var; \
88 }
89
90 NVRAM_READ_VAL(u8)
NVRAM_READ_VAL(s8)91 NVRAM_READ_VAL(s8)
92 NVRAM_READ_VAL(u16)
93 NVRAM_READ_VAL(u32)
94
95 #undef NVRAM_READ_VAL
96
97 static void nvram_read_u32_2(const char *prefix, const char *name,
98 u16 *val_lo, u16 *val_hi, bool fallback)
99 {
100 char buf[100];
101 int err;
102 u32 val;
103
104 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
105 if (err < 0)
106 return;
107 err = kstrtou32(strim(buf), 0, &val);
108 if (err) {
109 pr_warn("can not parse nvram name %s%s with value %s got %i\n",
110 prefix, name, buf, err);
111 return;
112 }
113 *val_lo = (val & 0x0000FFFFU);
114 *val_hi = (val & 0xFFFF0000U) >> 16;
115 }
116
nvram_read_leddc(const char * prefix,const char * name,u8 * leddc_on_time,u8 * leddc_off_time,bool fallback)117 static void nvram_read_leddc(const char *prefix, const char *name,
118 u8 *leddc_on_time, u8 *leddc_off_time,
119 bool fallback)
120 {
121 char buf[100];
122 int err;
123 u32 val;
124
125 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
126 if (err < 0)
127 return;
128 err = kstrtou32(strim(buf), 0, &val);
129 if (err) {
130 pr_warn("can not parse nvram name %s%s with value %s got %i\n",
131 prefix, name, buf, err);
132 return;
133 }
134
135 if (val == 0xffff || val == 0xffffffff)
136 return;
137
138 *leddc_on_time = val & 0xff;
139 *leddc_off_time = (val >> 16) & 0xff;
140 }
141
nvram_read_macaddr(const char * prefix,const char * name,u8 val[6],bool fallback)142 static void nvram_read_macaddr(const char *prefix, const char *name,
143 u8 val[6], bool fallback)
144 {
145 char buf[100];
146 int err;
147
148 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
149 if (err < 0)
150 return;
151
152 strreplace(buf, '-', ':');
153 if (!mac_pton(buf, val))
154 pr_warn("Can not parse mac address: %s\n", buf);
155 }
156
nvram_read_alpha2(const char * prefix,const char * name,char val[2],bool fallback)157 static void nvram_read_alpha2(const char *prefix, const char *name,
158 char val[2], bool fallback)
159 {
160 char buf[10];
161 int err;
162
163 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
164 if (err < 0)
165 return;
166 if (buf[0] == '0')
167 return;
168 if (strlen(buf) > 2) {
169 pr_warn("alpha2 is too long %s\n", buf);
170 return;
171 }
172 memcpy(val, buf, 2);
173 }
174
175 /* This is one-function-only macro, it uses local "sprom" variable! */
176 #define ENTRY(_revmask, _type, _prefix, _name, _val, _allset, _fallback) \
177 if (_revmask & BIT(sprom->revision)) \
178 nvram_read_ ## _type(_prefix, NULL, _name, &sprom->_val, \
179 _allset, _fallback)
180 /*
181 * Special version of filling function that can be safely called for any SPROM
182 * revision. For every NVRAM to SPROM mapping it contains bitmask of revisions
183 * for which the mapping is valid.
184 * It obviously requires some hexadecimal/bitmasks knowledge, but allows
185 * writing cleaner code (easy revisions handling).
186 * Note that while SPROM revision 0 was never used, we still keep BIT(0)
187 * reserved for it, just to keep numbering sane.
188 */
bcm47xx_sprom_fill_auto(struct ssb_sprom * sprom,const char * prefix,bool fallback)189 static void bcm47xx_sprom_fill_auto(struct ssb_sprom *sprom,
190 const char *prefix, bool fallback)
191 {
192 const char *pre = prefix;
193 bool fb = fallback;
194
195 /* Broadcom extracts it for rev 8+ but it was found on 2 and 4 too */
196 ENTRY(0xfffffffe, u16, pre, "devid", dev_id, 0, fallback);
197
198 ENTRY(0xfffffffe, u16, pre, "boardrev", board_rev, 0, true);
199 ENTRY(0xfffffffe, u32, pre, "boardflags", boardflags, 0, fb);
200 ENTRY(0xfffffff0, u32, pre, "boardflags2", boardflags2, 0, fb);
201 ENTRY(0xfffff800, u32, pre, "boardflags3", boardflags3, 0, fb);
202 ENTRY(0x00000002, u16, pre, "boardflags", boardflags_lo, 0, fb);
203 ENTRY(0xfffffffc, u16, pre, "boardtype", board_type, 0, true);
204 ENTRY(0xfffffffe, u16, pre, "boardnum", board_num, 0, fb);
205 ENTRY(0x00000002, u8, pre, "cc", country_code, 0, fb);
206 ENTRY(0xfffffff8, u8, pre, "regrev", regrev, 0, fb);
207
208 ENTRY(0xfffffffe, u8, pre, "ledbh0", gpio0, 0xff, fb);
209 ENTRY(0xfffffffe, u8, pre, "ledbh1", gpio1, 0xff, fb);
210 ENTRY(0xfffffffe, u8, pre, "ledbh2", gpio2, 0xff, fb);
211 ENTRY(0xfffffffe, u8, pre, "ledbh3", gpio3, 0xff, fb);
212
213 ENTRY(0x0000070e, u16, pre, "pa0b0", pa0b0, 0, fb);
214 ENTRY(0x0000070e, u16, pre, "pa0b1", pa0b1, 0, fb);
215 ENTRY(0x0000070e, u16, pre, "pa0b2", pa0b2, 0, fb);
216 ENTRY(0x0000070e, u8, pre, "pa0itssit", itssi_bg, 0, fb);
217 ENTRY(0x0000070e, u8, pre, "pa0maxpwr", maxpwr_bg, 0, fb);
218
219 ENTRY(0x0000070c, u8, pre, "opo", opo, 0, fb);
220 ENTRY(0xfffffffe, u8, pre, "aa2g", ant_available_bg, 0, fb);
221 ENTRY(0xfffffffe, u8, pre, "aa5g", ant_available_a, 0, fb);
222 ENTRY(0x000007fe, s8, pre, "ag0", antenna_gain.a0, 0, fb);
223 ENTRY(0x000007fe, s8, pre, "ag1", antenna_gain.a1, 0, fb);
224 ENTRY(0x000007f0, s8, pre, "ag2", antenna_gain.a2, 0, fb);
225 ENTRY(0x000007f0, s8, pre, "ag3", antenna_gain.a3, 0, fb);
226
227 ENTRY(0x0000070e, u16, pre, "pa1b0", pa1b0, 0, fb);
228 ENTRY(0x0000070e, u16, pre, "pa1b1", pa1b1, 0, fb);
229 ENTRY(0x0000070e, u16, pre, "pa1b2", pa1b2, 0, fb);
230 ENTRY(0x0000070c, u16, pre, "pa1lob0", pa1lob0, 0, fb);
231 ENTRY(0x0000070c, u16, pre, "pa1lob1", pa1lob1, 0, fb);
232 ENTRY(0x0000070c, u16, pre, "pa1lob2", pa1lob2, 0, fb);
233 ENTRY(0x0000070c, u16, pre, "pa1hib0", pa1hib0, 0, fb);
234 ENTRY(0x0000070c, u16, pre, "pa1hib1", pa1hib1, 0, fb);
235 ENTRY(0x0000070c, u16, pre, "pa1hib2", pa1hib2, 0, fb);
236 ENTRY(0x0000070e, u8, pre, "pa1itssit", itssi_a, 0, fb);
237 ENTRY(0x0000070e, u8, pre, "pa1maxpwr", maxpwr_a, 0, fb);
238 ENTRY(0x0000070c, u8, pre, "pa1lomaxpwr", maxpwr_al, 0, fb);
239 ENTRY(0x0000070c, u8, pre, "pa1himaxpwr", maxpwr_ah, 0, fb);
240
241 ENTRY(0x00000708, u8, pre, "bxa2g", bxa2g, 0, fb);
242 ENTRY(0x00000708, u8, pre, "rssisav2g", rssisav2g, 0, fb);
243 ENTRY(0x00000708, u8, pre, "rssismc2g", rssismc2g, 0, fb);
244 ENTRY(0x00000708, u8, pre, "rssismf2g", rssismf2g, 0, fb);
245 ENTRY(0x00000708, u8, pre, "bxa5g", bxa5g, 0, fb);
246 ENTRY(0x00000708, u8, pre, "rssisav5g", rssisav5g, 0, fb);
247 ENTRY(0x00000708, u8, pre, "rssismc5g", rssismc5g, 0, fb);
248 ENTRY(0x00000708, u8, pre, "rssismf5g", rssismf5g, 0, fb);
249 ENTRY(0x00000708, u8, pre, "tri2g", tri2g, 0, fb);
250 ENTRY(0x00000708, u8, pre, "tri5g", tri5g, 0, fb);
251 ENTRY(0x00000708, u8, pre, "tri5gl", tri5gl, 0, fb);
252 ENTRY(0x00000708, u8, pre, "tri5gh", tri5gh, 0, fb);
253 ENTRY(0x00000708, s8, pre, "rxpo2g", rxpo2g, 0, fb);
254 ENTRY(0x00000708, s8, pre, "rxpo5g", rxpo5g, 0, fb);
255 ENTRY(0xfffffff0, u8, pre, "txchain", txchain, 0xf, fb);
256 ENTRY(0xfffffff0, u8, pre, "rxchain", rxchain, 0xf, fb);
257 ENTRY(0xfffffff0, u8, pre, "antswitch", antswitch, 0xff, fb);
258 ENTRY(0x00000700, u8, pre, "tssipos2g", fem.ghz2.tssipos, 0, fb);
259 ENTRY(0x00000700, u8, pre, "extpagain2g", fem.ghz2.extpa_gain, 0, fb);
260 ENTRY(0x00000700, u8, pre, "pdetrange2g", fem.ghz2.pdet_range, 0, fb);
261 ENTRY(0x00000700, u8, pre, "triso2g", fem.ghz2.tr_iso, 0, fb);
262 ENTRY(0x00000700, u8, pre, "antswctl2g", fem.ghz2.antswlut, 0, fb);
263 ENTRY(0x00000700, u8, pre, "tssipos5g", fem.ghz5.tssipos, 0, fb);
264 ENTRY(0x00000700, u8, pre, "extpagain5g", fem.ghz5.extpa_gain, 0, fb);
265 ENTRY(0x00000700, u8, pre, "pdetrange5g", fem.ghz5.pdet_range, 0, fb);
266 ENTRY(0x00000700, u8, pre, "triso5g", fem.ghz5.tr_iso, 0, fb);
267 ENTRY(0x00000700, u8, pre, "antswctl5g", fem.ghz5.antswlut, 0, fb);
268 ENTRY(0x000000f0, u8, pre, "txpid2ga0", txpid2g[0], 0, fb);
269 ENTRY(0x000000f0, u8, pre, "txpid2ga1", txpid2g[1], 0, fb);
270 ENTRY(0x000000f0, u8, pre, "txpid2ga2", txpid2g[2], 0, fb);
271 ENTRY(0x000000f0, u8, pre, "txpid2ga3", txpid2g[3], 0, fb);
272 ENTRY(0x000000f0, u8, pre, "txpid5ga0", txpid5g[0], 0, fb);
273 ENTRY(0x000000f0, u8, pre, "txpid5ga1", txpid5g[1], 0, fb);
274 ENTRY(0x000000f0, u8, pre, "txpid5ga2", txpid5g[2], 0, fb);
275 ENTRY(0x000000f0, u8, pre, "txpid5ga3", txpid5g[3], 0, fb);
276 ENTRY(0x000000f0, u8, pre, "txpid5gla0", txpid5gl[0], 0, fb);
277 ENTRY(0x000000f0, u8, pre, "txpid5gla1", txpid5gl[1], 0, fb);
278 ENTRY(0x000000f0, u8, pre, "txpid5gla2", txpid5gl[2], 0, fb);
279 ENTRY(0x000000f0, u8, pre, "txpid5gla3", txpid5gl[3], 0, fb);
280 ENTRY(0x000000f0, u8, pre, "txpid5gha0", txpid5gh[0], 0, fb);
281 ENTRY(0x000000f0, u8, pre, "txpid5gha1", txpid5gh[1], 0, fb);
282 ENTRY(0x000000f0, u8, pre, "txpid5gha2", txpid5gh[2], 0, fb);
283 ENTRY(0x000000f0, u8, pre, "txpid5gha3", txpid5gh[3], 0, fb);
284
285 ENTRY(0xffffff00, u8, pre, "tempthresh", tempthresh, 0, fb);
286 ENTRY(0xffffff00, u8, pre, "tempoffset", tempoffset, 0, fb);
287 ENTRY(0xffffff00, u16, pre, "rawtempsense", rawtempsense, 0, fb);
288 ENTRY(0xffffff00, u8, pre, "measpower", measpower, 0, fb);
289 ENTRY(0xffffff00, u8, pre, "tempsense_slope", tempsense_slope, 0, fb);
290 ENTRY(0xffffff00, u8, pre, "tempcorrx", tempcorrx, 0, fb);
291 ENTRY(0xffffff00, u8, pre, "tempsense_option", tempsense_option, 0, fb);
292 ENTRY(0x00000700, u8, pre, "freqoffset_corr", freqoffset_corr, 0, fb);
293 ENTRY(0x00000700, u8, pre, "iqcal_swp_dis", iqcal_swp_dis, 0, fb);
294 ENTRY(0x00000700, u8, pre, "hw_iqcal_en", hw_iqcal_en, 0, fb);
295 ENTRY(0x00000700, u8, pre, "elna2g", elna2g, 0, fb);
296 ENTRY(0x00000700, u8, pre, "elna5g", elna5g, 0, fb);
297 ENTRY(0xffffff00, u8, pre, "phycal_tempdelta", phycal_tempdelta, 0, fb);
298 ENTRY(0xffffff00, u8, pre, "temps_period", temps_period, 0, fb);
299 ENTRY(0xffffff00, u8, pre, "temps_hysteresis", temps_hysteresis, 0, fb);
300 ENTRY(0xffffff00, u8, pre, "measpower1", measpower1, 0, fb);
301 ENTRY(0xffffff00, u8, pre, "measpower2", measpower2, 0, fb);
302
303 ENTRY(0x000001f0, u16, pre, "cck2gpo", cck2gpo, 0, fb);
304 ENTRY(0x000001f0, u32, pre, "ofdm2gpo", ofdm2gpo, 0, fb);
305 ENTRY(0x000001f0, u32, pre, "ofdm5gpo", ofdm5gpo, 0, fb);
306 ENTRY(0x000001f0, u32, pre, "ofdm5glpo", ofdm5glpo, 0, fb);
307 ENTRY(0x000001f0, u32, pre, "ofdm5ghpo", ofdm5ghpo, 0, fb);
308 ENTRY(0x000001f0, u16, pre, "mcs2gpo0", mcs2gpo[0], 0, fb);
309 ENTRY(0x000001f0, u16, pre, "mcs2gpo1", mcs2gpo[1], 0, fb);
310 ENTRY(0x000001f0, u16, pre, "mcs2gpo2", mcs2gpo[2], 0, fb);
311 ENTRY(0x000001f0, u16, pre, "mcs2gpo3", mcs2gpo[3], 0, fb);
312 ENTRY(0x000001f0, u16, pre, "mcs2gpo4", mcs2gpo[4], 0, fb);
313 ENTRY(0x000001f0, u16, pre, "mcs2gpo5", mcs2gpo[5], 0, fb);
314 ENTRY(0x000001f0, u16, pre, "mcs2gpo6", mcs2gpo[6], 0, fb);
315 ENTRY(0x000001f0, u16, pre, "mcs2gpo7", mcs2gpo[7], 0, fb);
316 ENTRY(0x000001f0, u16, pre, "mcs5gpo0", mcs5gpo[0], 0, fb);
317 ENTRY(0x000001f0, u16, pre, "mcs5gpo1", mcs5gpo[1], 0, fb);
318 ENTRY(0x000001f0, u16, pre, "mcs5gpo2", mcs5gpo[2], 0, fb);
319 ENTRY(0x000001f0, u16, pre, "mcs5gpo3", mcs5gpo[3], 0, fb);
320 ENTRY(0x000001f0, u16, pre, "mcs5gpo4", mcs5gpo[4], 0, fb);
321 ENTRY(0x000001f0, u16, pre, "mcs5gpo5", mcs5gpo[5], 0, fb);
322 ENTRY(0x000001f0, u16, pre, "mcs5gpo6", mcs5gpo[6], 0, fb);
323 ENTRY(0x000001f0, u16, pre, "mcs5gpo7", mcs5gpo[7], 0, fb);
324 ENTRY(0x000001f0, u16, pre, "mcs5glpo0", mcs5glpo[0], 0, fb);
325 ENTRY(0x000001f0, u16, pre, "mcs5glpo1", mcs5glpo[1], 0, fb);
326 ENTRY(0x000001f0, u16, pre, "mcs5glpo2", mcs5glpo[2], 0, fb);
327 ENTRY(0x000001f0, u16, pre, "mcs5glpo3", mcs5glpo[3], 0, fb);
328 ENTRY(0x000001f0, u16, pre, "mcs5glpo4", mcs5glpo[4], 0, fb);
329 ENTRY(0x000001f0, u16, pre, "mcs5glpo5", mcs5glpo[5], 0, fb);
330 ENTRY(0x000001f0, u16, pre, "mcs5glpo6", mcs5glpo[6], 0, fb);
331 ENTRY(0x000001f0, u16, pre, "mcs5glpo7", mcs5glpo[7], 0, fb);
332 ENTRY(0x000001f0, u16, pre, "mcs5ghpo0", mcs5ghpo[0], 0, fb);
333 ENTRY(0x000001f0, u16, pre, "mcs5ghpo1", mcs5ghpo[1], 0, fb);
334 ENTRY(0x000001f0, u16, pre, "mcs5ghpo2", mcs5ghpo[2], 0, fb);
335 ENTRY(0x000001f0, u16, pre, "mcs5ghpo3", mcs5ghpo[3], 0, fb);
336 ENTRY(0x000001f0, u16, pre, "mcs5ghpo4", mcs5ghpo[4], 0, fb);
337 ENTRY(0x000001f0, u16, pre, "mcs5ghpo5", mcs5ghpo[5], 0, fb);
338 ENTRY(0x000001f0, u16, pre, "mcs5ghpo6", mcs5ghpo[6], 0, fb);
339 ENTRY(0x000001f0, u16, pre, "mcs5ghpo7", mcs5ghpo[7], 0, fb);
340 ENTRY(0x000001f0, u16, pre, "cddpo", cddpo, 0, fb);
341 ENTRY(0x000001f0, u16, pre, "stbcpo", stbcpo, 0, fb);
342 ENTRY(0x000001f0, u16, pre, "bw40po", bw40po, 0, fb);
343 ENTRY(0x000001f0, u16, pre, "bwduppo", bwduppo, 0, fb);
344
345 ENTRY(0xfffffe00, u16, pre, "cckbw202gpo", cckbw202gpo, 0, fb);
346 ENTRY(0xfffffe00, u16, pre, "cckbw20ul2gpo", cckbw20ul2gpo, 0, fb);
347 ENTRY(0x00000600, u32, pre, "legofdmbw202gpo", legofdmbw202gpo, 0, fb);
348 ENTRY(0x00000600, u32, pre, "legofdmbw20ul2gpo", legofdmbw20ul2gpo, 0, fb);
349 ENTRY(0x00000600, u32, pre, "legofdmbw205glpo", legofdmbw205glpo, 0, fb);
350 ENTRY(0x00000600, u32, pre, "legofdmbw20ul5glpo", legofdmbw20ul5glpo, 0, fb);
351 ENTRY(0x00000600, u32, pre, "legofdmbw205gmpo", legofdmbw205gmpo, 0, fb);
352 ENTRY(0x00000600, u32, pre, "legofdmbw20ul5gmpo", legofdmbw20ul5gmpo, 0, fb);
353 ENTRY(0x00000600, u32, pre, "legofdmbw205ghpo", legofdmbw205ghpo, 0, fb);
354 ENTRY(0x00000600, u32, pre, "legofdmbw20ul5ghpo", legofdmbw20ul5ghpo, 0, fb);
355 ENTRY(0xfffffe00, u32, pre, "mcsbw202gpo", mcsbw202gpo, 0, fb);
356 ENTRY(0x00000600, u32, pre, "mcsbw20ul2gpo", mcsbw20ul2gpo, 0, fb);
357 ENTRY(0xfffffe00, u32, pre, "mcsbw402gpo", mcsbw402gpo, 0, fb);
358 ENTRY(0xfffffe00, u32, pre, "mcsbw205glpo", mcsbw205glpo, 0, fb);
359 ENTRY(0x00000600, u32, pre, "mcsbw20ul5glpo", mcsbw20ul5glpo, 0, fb);
360 ENTRY(0xfffffe00, u32, pre, "mcsbw405glpo", mcsbw405glpo, 0, fb);
361 ENTRY(0xfffffe00, u32, pre, "mcsbw205gmpo", mcsbw205gmpo, 0, fb);
362 ENTRY(0x00000600, u32, pre, "mcsbw20ul5gmpo", mcsbw20ul5gmpo, 0, fb);
363 ENTRY(0xfffffe00, u32, pre, "mcsbw405gmpo", mcsbw405gmpo, 0, fb);
364 ENTRY(0xfffffe00, u32, pre, "mcsbw205ghpo", mcsbw205ghpo, 0, fb);
365 ENTRY(0x00000600, u32, pre, "mcsbw20ul5ghpo", mcsbw20ul5ghpo, 0, fb);
366 ENTRY(0xfffffe00, u32, pre, "mcsbw405ghpo", mcsbw405ghpo, 0, fb);
367 ENTRY(0x00000600, u16, pre, "mcs32po", mcs32po, 0, fb);
368 ENTRY(0x00000600, u16, pre, "legofdm40duppo", legofdm40duppo, 0, fb);
369 ENTRY(0x00000700, u8, pre, "pcieingress_war", pcieingress_war, 0, fb);
370
371 /* TODO: rev 11 support */
372 ENTRY(0x00000700, u8, pre, "rxgainerr2ga0", rxgainerr2ga[0], 0, fb);
373 ENTRY(0x00000700, u8, pre, "rxgainerr2ga1", rxgainerr2ga[1], 0, fb);
374 ENTRY(0x00000700, u8, pre, "rxgainerr2ga2", rxgainerr2ga[2], 0, fb);
375 ENTRY(0x00000700, u8, pre, "rxgainerr5gla0", rxgainerr5gla[0], 0, fb);
376 ENTRY(0x00000700, u8, pre, "rxgainerr5gla1", rxgainerr5gla[1], 0, fb);
377 ENTRY(0x00000700, u8, pre, "rxgainerr5gla2", rxgainerr5gla[2], 0, fb);
378 ENTRY(0x00000700, u8, pre, "rxgainerr5gma0", rxgainerr5gma[0], 0, fb);
379 ENTRY(0x00000700, u8, pre, "rxgainerr5gma1", rxgainerr5gma[1], 0, fb);
380 ENTRY(0x00000700, u8, pre, "rxgainerr5gma2", rxgainerr5gma[2], 0, fb);
381 ENTRY(0x00000700, u8, pre, "rxgainerr5gha0", rxgainerr5gha[0], 0, fb);
382 ENTRY(0x00000700, u8, pre, "rxgainerr5gha1", rxgainerr5gha[1], 0, fb);
383 ENTRY(0x00000700, u8, pre, "rxgainerr5gha2", rxgainerr5gha[2], 0, fb);
384 ENTRY(0x00000700, u8, pre, "rxgainerr5gua0", rxgainerr5gua[0], 0, fb);
385 ENTRY(0x00000700, u8, pre, "rxgainerr5gua1", rxgainerr5gua[1], 0, fb);
386 ENTRY(0x00000700, u8, pre, "rxgainerr5gua2", rxgainerr5gua[2], 0, fb);
387
388 ENTRY(0xfffffe00, u8, pre, "sar2g", sar2g, 0, fb);
389 ENTRY(0xfffffe00, u8, pre, "sar5g", sar5g, 0, fb);
390
391 /* TODO: rev 11 support */
392 ENTRY(0x00000700, u8, pre, "noiselvl2ga0", noiselvl2ga[0], 0, fb);
393 ENTRY(0x00000700, u8, pre, "noiselvl2ga1", noiselvl2ga[1], 0, fb);
394 ENTRY(0x00000700, u8, pre, "noiselvl2ga2", noiselvl2ga[2], 0, fb);
395 ENTRY(0x00000700, u8, pre, "noiselvl5gla0", noiselvl5gla[0], 0, fb);
396 ENTRY(0x00000700, u8, pre, "noiselvl5gla1", noiselvl5gla[1], 0, fb);
397 ENTRY(0x00000700, u8, pre, "noiselvl5gla2", noiselvl5gla[2], 0, fb);
398 ENTRY(0x00000700, u8, pre, "noiselvl5gma0", noiselvl5gma[0], 0, fb);
399 ENTRY(0x00000700, u8, pre, "noiselvl5gma1", noiselvl5gma[1], 0, fb);
400 ENTRY(0x00000700, u8, pre, "noiselvl5gma2", noiselvl5gma[2], 0, fb);
401 ENTRY(0x00000700, u8, pre, "noiselvl5gha0", noiselvl5gha[0], 0, fb);
402 ENTRY(0x00000700, u8, pre, "noiselvl5gha1", noiselvl5gha[1], 0, fb);
403 ENTRY(0x00000700, u8, pre, "noiselvl5gha2", noiselvl5gha[2], 0, fb);
404 ENTRY(0x00000700, u8, pre, "noiselvl5gua0", noiselvl5gua[0], 0, fb);
405 ENTRY(0x00000700, u8, pre, "noiselvl5gua1", noiselvl5gua[1], 0, fb);
406 ENTRY(0x00000700, u8, pre, "noiselvl5gua2", noiselvl5gua[2], 0, fb);
407 }
408 #undef ENTRY /* It's specific, uses local variable, don't use it (again). */
409
bcm47xx_fill_sprom_path_r4589(struct ssb_sprom * sprom,const char * prefix,bool fallback)410 static void bcm47xx_fill_sprom_path_r4589(struct ssb_sprom *sprom,
411 const char *prefix, bool fallback)
412 {
413 char postfix[2];
414 int i;
415
416 for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
417 struct ssb_sprom_core_pwr_info *pwr_info;
418
419 pwr_info = &sprom->core_pwr_info[i];
420
421 snprintf(postfix, sizeof(postfix), "%i", i);
422 nvram_read_u8(prefix, postfix, "maxp2ga",
423 &pwr_info->maxpwr_2g, 0, fallback);
424 nvram_read_u8(prefix, postfix, "itt2ga",
425 &pwr_info->itssi_2g, 0, fallback);
426 nvram_read_u8(prefix, postfix, "itt5ga",
427 &pwr_info->itssi_5g, 0, fallback);
428 nvram_read_u16(prefix, postfix, "pa2gw0a",
429 &pwr_info->pa_2g[0], 0, fallback);
430 nvram_read_u16(prefix, postfix, "pa2gw1a",
431 &pwr_info->pa_2g[1], 0, fallback);
432 nvram_read_u16(prefix, postfix, "pa2gw2a",
433 &pwr_info->pa_2g[2], 0, fallback);
434 nvram_read_u8(prefix, postfix, "maxp5ga",
435 &pwr_info->maxpwr_5g, 0, fallback);
436 nvram_read_u8(prefix, postfix, "maxp5gha",
437 &pwr_info->maxpwr_5gh, 0, fallback);
438 nvram_read_u8(prefix, postfix, "maxp5gla",
439 &pwr_info->maxpwr_5gl, 0, fallback);
440 nvram_read_u16(prefix, postfix, "pa5gw0a",
441 &pwr_info->pa_5g[0], 0, fallback);
442 nvram_read_u16(prefix, postfix, "pa5gw1a",
443 &pwr_info->pa_5g[1], 0, fallback);
444 nvram_read_u16(prefix, postfix, "pa5gw2a",
445 &pwr_info->pa_5g[2], 0, fallback);
446 nvram_read_u16(prefix, postfix, "pa5glw0a",
447 &pwr_info->pa_5gl[0], 0, fallback);
448 nvram_read_u16(prefix, postfix, "pa5glw1a",
449 &pwr_info->pa_5gl[1], 0, fallback);
450 nvram_read_u16(prefix, postfix, "pa5glw2a",
451 &pwr_info->pa_5gl[2], 0, fallback);
452 nvram_read_u16(prefix, postfix, "pa5ghw0a",
453 &pwr_info->pa_5gh[0], 0, fallback);
454 nvram_read_u16(prefix, postfix, "pa5ghw1a",
455 &pwr_info->pa_5gh[1], 0, fallback);
456 nvram_read_u16(prefix, postfix, "pa5ghw2a",
457 &pwr_info->pa_5gh[2], 0, fallback);
458 }
459 }
460
bcm47xx_fill_sprom_path_r45(struct ssb_sprom * sprom,const char * prefix,bool fallback)461 static void bcm47xx_fill_sprom_path_r45(struct ssb_sprom *sprom,
462 const char *prefix, bool fallback)
463 {
464 char postfix[2];
465 int i;
466
467 for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
468 struct ssb_sprom_core_pwr_info *pwr_info;
469
470 pwr_info = &sprom->core_pwr_info[i];
471
472 snprintf(postfix, sizeof(postfix), "%i", i);
473 nvram_read_u16(prefix, postfix, "pa2gw3a",
474 &pwr_info->pa_2g[3], 0, fallback);
475 nvram_read_u16(prefix, postfix, "pa5gw3a",
476 &pwr_info->pa_5g[3], 0, fallback);
477 nvram_read_u16(prefix, postfix, "pa5glw3a",
478 &pwr_info->pa_5gl[3], 0, fallback);
479 nvram_read_u16(prefix, postfix, "pa5ghw3a",
480 &pwr_info->pa_5gh[3], 0, fallback);
481 }
482 }
483
bcm47xx_is_valid_mac(u8 * mac)484 static bool bcm47xx_is_valid_mac(u8 *mac)
485 {
486 return mac && !(mac[0] == 0x00 && mac[1] == 0x90 && mac[2] == 0x4c);
487 }
488
bcm47xx_increase_mac_addr(u8 * mac,u8 num)489 static int bcm47xx_increase_mac_addr(u8 *mac, u8 num)
490 {
491 u8 *oui = mac + ETH_ALEN/2 - 1;
492 u8 *p = mac + ETH_ALEN - 1;
493
494 do {
495 (*p) += num;
496 if (*p > num)
497 break;
498 p--;
499 num = 1;
500 } while (p != oui);
501
502 if (p == oui) {
503 pr_err("unable to fetch mac address\n");
504 return -ENOENT;
505 }
506 return 0;
507 }
508
509 static int mac_addr_used = 2;
510
bcm47xx_fill_sprom_ethernet(struct ssb_sprom * sprom,const char * prefix,bool fallback)511 static void bcm47xx_fill_sprom_ethernet(struct ssb_sprom *sprom,
512 const char *prefix, bool fallback)
513 {
514 bool fb = fallback;
515
516 nvram_read_macaddr(prefix, "et0macaddr", sprom->et0mac, fallback);
517 nvram_read_u8(prefix, NULL, "et0mdcport", &sprom->et0mdcport, 0,
518 fallback);
519 nvram_read_u8(prefix, NULL, "et0phyaddr", &sprom->et0phyaddr, 0,
520 fallback);
521
522 nvram_read_macaddr(prefix, "et1macaddr", sprom->et1mac, fallback);
523 nvram_read_u8(prefix, NULL, "et1mdcport", &sprom->et1mdcport, 0,
524 fallback);
525 nvram_read_u8(prefix, NULL, "et1phyaddr", &sprom->et1phyaddr, 0,
526 fallback);
527
528 nvram_read_macaddr(prefix, "et2macaddr", sprom->et2mac, fb);
529 nvram_read_u8(prefix, NULL, "et2mdcport", &sprom->et2mdcport, 0, fb);
530 nvram_read_u8(prefix, NULL, "et2phyaddr", &sprom->et2phyaddr, 0, fb);
531
532 nvram_read_macaddr(prefix, "macaddr", sprom->il0mac, fallback);
533 nvram_read_macaddr(prefix, "il0macaddr", sprom->il0mac, fallback);
534
535 /* The address prefix 00:90:4C is used by Broadcom in their initial
536 * configuration. When a mac address with the prefix 00:90:4C is used
537 * all devices from the same series are sharing the same mac address.
538 * To prevent mac address collisions we replace them with a mac address
539 * based on the base address.
540 */
541 if (!bcm47xx_is_valid_mac(sprom->il0mac)) {
542 u8 mac[6];
543
544 nvram_read_macaddr(NULL, "et0macaddr", mac, false);
545 if (bcm47xx_is_valid_mac(mac)) {
546 int err = bcm47xx_increase_mac_addr(mac, mac_addr_used);
547
548 if (!err) {
549 ether_addr_copy(sprom->il0mac, mac);
550 mac_addr_used++;
551 }
552 }
553 }
554 }
555
bcm47xx_fill_board_data(struct ssb_sprom * sprom,const char * prefix,bool fallback)556 static void bcm47xx_fill_board_data(struct ssb_sprom *sprom, const char *prefix,
557 bool fallback)
558 {
559 nvram_read_u32_2(prefix, "boardflags", &sprom->boardflags_lo,
560 &sprom->boardflags_hi, fallback);
561 nvram_read_u32_2(prefix, "boardflags2", &sprom->boardflags2_lo,
562 &sprom->boardflags2_hi, fallback);
563 }
564
bcm47xx_fill_sprom(struct ssb_sprom * sprom,const char * prefix,bool fallback)565 void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix,
566 bool fallback)
567 {
568 bcm47xx_fill_sprom_ethernet(sprom, prefix, fallback);
569 bcm47xx_fill_board_data(sprom, prefix, fallback);
570
571 nvram_read_u8(prefix, NULL, "sromrev", &sprom->revision, 0, fallback);
572
573 /* Entries requiring custom functions */
574 nvram_read_alpha2(prefix, "ccode", sprom->alpha2, fallback);
575 if (sprom->revision >= 3)
576 nvram_read_leddc(prefix, "leddc", &sprom->leddc_on_time,
577 &sprom->leddc_off_time, fallback);
578
579 switch (sprom->revision) {
580 case 4:
581 case 5:
582 bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
583 bcm47xx_fill_sprom_path_r45(sprom, prefix, fallback);
584 break;
585 case 8:
586 case 9:
587 bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
588 break;
589 }
590
591 bcm47xx_sprom_fill_auto(sprom, prefix, fallback);
592 }
593
594 #if IS_BUILTIN(CONFIG_SSB) && IS_ENABLED(CONFIG_SSB_SPROM)
bcm47xx_get_sprom_ssb(struct ssb_bus * bus,struct ssb_sprom * out)595 static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
596 {
597 char prefix[10];
598
599 switch (bus->bustype) {
600 case SSB_BUSTYPE_SSB:
601 bcm47xx_fill_sprom(out, NULL, false);
602 return 0;
603 case SSB_BUSTYPE_PCI:
604 memset(out, 0, sizeof(struct ssb_sprom));
605 snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
606 bus->host_pci->bus->number + 1,
607 PCI_SLOT(bus->host_pci->devfn));
608 bcm47xx_fill_sprom(out, prefix, false);
609 return 0;
610 default:
611 pr_warn("Unable to fill SPROM for given bustype.\n");
612 return -EINVAL;
613 }
614 }
615 #endif
616
617 #if IS_BUILTIN(CONFIG_BCMA)
618 /*
619 * Having many NVRAM entries for PCI devices led to repeating prefixes like
620 * pci/1/1/ all the time and wasting flash space. So at some point Broadcom
621 * decided to introduce prefixes like 0: 1: 2: etc.
622 * If we find e.g. devpath0=pci/2/1 or devpath0=pci/2/1/ we should use 0:
623 * instead of pci/2/1/.
624 */
bcm47xx_sprom_apply_prefix_alias(char * prefix,size_t prefix_size)625 static void bcm47xx_sprom_apply_prefix_alias(char *prefix, size_t prefix_size)
626 {
627 size_t prefix_len = strlen(prefix);
628 size_t short_len = prefix_len - 1;
629 char nvram_var[10];
630 char buf[20];
631 int i;
632
633 /* Passed prefix has to end with a slash */
634 if (prefix_len <= 0 || prefix[prefix_len - 1] != '/')
635 return;
636
637 for (i = 0; i < 3; i++) {
638 if (snprintf(nvram_var, sizeof(nvram_var), "devpath%d", i) <= 0)
639 continue;
640 if (bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf)) < 0)
641 continue;
642 if (!strcmp(buf, prefix) ||
643 (short_len && strlen(buf) == short_len && !strncmp(buf, prefix, short_len))) {
644 snprintf(prefix, prefix_size, "%d:", i);
645 return;
646 }
647 }
648 }
649
bcm47xx_get_sprom_bcma(struct bcma_bus * bus,struct ssb_sprom * out)650 static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out)
651 {
652 struct bcma_boardinfo *binfo = &bus->boardinfo;
653 struct bcma_device *core;
654 char buf[10];
655 char *prefix;
656 bool fallback = false;
657
658 switch (bus->hosttype) {
659 case BCMA_HOSTTYPE_PCI:
660 memset(out, 0, sizeof(struct ssb_sprom));
661 /* On BCM47XX all PCI buses share the same domain */
662 if (IS_ENABLED(CONFIG_BCM47XX))
663 snprintf(buf, sizeof(buf), "pci/%u/%u/",
664 bus->host_pci->bus->number + 1,
665 PCI_SLOT(bus->host_pci->devfn));
666 else
667 snprintf(buf, sizeof(buf), "pci/%u/%u/",
668 pci_domain_nr(bus->host_pci->bus) + 1,
669 bus->host_pci->bus->number);
670 bcm47xx_sprom_apply_prefix_alias(buf, sizeof(buf));
671 prefix = buf;
672 break;
673 case BCMA_HOSTTYPE_SOC:
674 memset(out, 0, sizeof(struct ssb_sprom));
675 core = bcma_find_core(bus, BCMA_CORE_80211);
676 if (core) {
677 snprintf(buf, sizeof(buf), "sb/%u/",
678 core->core_index);
679 prefix = buf;
680 fallback = true;
681 } else {
682 prefix = NULL;
683 }
684 break;
685 default:
686 pr_warn("Unable to fill SPROM for given bustype.\n");
687 return -EINVAL;
688 }
689
690 nvram_read_u16(prefix, NULL, "boardvendor", &binfo->vendor, 0, true);
691 if (!binfo->vendor)
692 binfo->vendor = SSB_BOARDVENDOR_BCM;
693 nvram_read_u16(prefix, NULL, "boardtype", &binfo->type, 0, true);
694
695 bcm47xx_fill_sprom(out, prefix, fallback);
696
697 return 0;
698 }
699 #endif
700
701 static unsigned int bcm47xx_sprom_registered;
702
703 /*
704 * On bcm47xx we need to register SPROM fallback handler very early, so we can't
705 * use anything like platform device / driver for this.
706 */
bcm47xx_sprom_register_fallbacks(void)707 int bcm47xx_sprom_register_fallbacks(void)
708 {
709 if (bcm47xx_sprom_registered)
710 return 0;
711
712 #if IS_BUILTIN(CONFIG_SSB) && IS_ENABLED(CONFIG_SSB_SPROM)
713 if (ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom_ssb))
714 pr_warn("Failed to register ssb SPROM handler\n");
715 #endif
716
717 #if IS_BUILTIN(CONFIG_BCMA)
718 if (bcma_arch_register_fallback_sprom(&bcm47xx_get_sprom_bcma))
719 pr_warn("Failed to register bcma SPROM handler\n");
720 #endif
721
722 bcm47xx_sprom_registered = 1;
723
724 return 0;
725 }
726
727 fs_initcall(bcm47xx_sprom_register_fallbacks);
728