bb9f286badcbc8b57e1c8adb85152acd0a6c1f37
[openwrt/openwrt.git] / target / linux / bcm53xx / files / drivers / misc / bcm47xx-sprom.c
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/types.h>
30 #include <linux/module.h>
31 #include <linux/kernel.h>
32 #include <linux/string.h>
33 #include <linux/of_address.h>
34 #include <linux/device.h>
35 #include <linux/platform_device.h>
36 #include <linux/of_platform.h>
37 #include <linux/io.h>
38 #include <linux/ssb/ssb.h>
39 #include <linux/bcma/bcma.h>
40 #include <linux/bcm47xx_nvram.h>
41 #include <linux/if_ether.h>
42 #include <linux/etherdevice.h>
43
44 static void create_key(const char *prefix, const char *postfix,
45 const char *name, char *buf, int len)
46 {
47 if (prefix && postfix)
48 snprintf(buf, len, "%s%s%s", prefix, name, postfix);
49 else if (prefix)
50 snprintf(buf, len, "%s%s", prefix, name);
51 else if (postfix)
52 snprintf(buf, len, "%s%s", name, postfix);
53 else
54 snprintf(buf, len, "%s", name);
55 }
56
57 static int get_nvram_var(const char *prefix, const char *postfix,
58 const char *name, char *buf, int len, bool fallback)
59 {
60 char key[40];
61 int err;
62
63 create_key(prefix, postfix, name, key, sizeof(key));
64
65 err = bcm47xx_nvram_getenv(key, buf, len);
66 if (fallback && err == -ENOENT && prefix) {
67 create_key(NULL, postfix, name, key, sizeof(key));
68 err = bcm47xx_nvram_getenv(key, buf, len);
69 }
70 return err;
71 }
72
73 #define NVRAM_READ_VAL(type) \
74 static void nvram_read_ ## type (const char *prefix, \
75 const char *postfix, const char *name, \
76 type *val, type allset, bool fallback) \
77 { \
78 char buf[100]; \
79 int err; \
80 type var; \
81 \
82 err = get_nvram_var(prefix, postfix, name, buf, sizeof(buf), \
83 fallback); \
84 if (err < 0) \
85 return; \
86 err = kstrto ## type(strim(buf), 0, &var); \
87 if (err) { \
88 pr_warn("can not parse nvram name %s%s%s with value %s got %i\n", \
89 prefix, name, postfix, buf, err); \
90 return; \
91 } \
92 if (allset && var == allset) \
93 return; \
94 *val = var; \
95 }
96
97 NVRAM_READ_VAL(u8)
98 NVRAM_READ_VAL(s8)
99 NVRAM_READ_VAL(u16)
100 NVRAM_READ_VAL(u32)
101
102 #undef NVRAM_READ_VAL
103
104 static void nvram_read_u32_2(const char *prefix, const char *name,
105 u16 *val_lo, u16 *val_hi, bool fallback)
106 {
107 char buf[100];
108 int err;
109 u32 val;
110
111 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
112 if (err < 0)
113 return;
114 err = kstrtou32(strim(buf), 0, &val);
115 if (err) {
116 pr_warn("can not parse nvram name %s%s with value %s got %i\n",
117 prefix, name, buf, err);
118 return;
119 }
120 *val_lo = (val & 0x0000FFFFU);
121 *val_hi = (val & 0xFFFF0000U) >> 16;
122 }
123
124 static void nvram_read_leddc(const char *prefix, const char *name,
125 u8 *leddc_on_time, u8 *leddc_off_time,
126 bool fallback)
127 {
128 char buf[100];
129 int err;
130 u32 val;
131
132 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
133 if (err < 0)
134 return;
135 err = kstrtou32(strim(buf), 0, &val);
136 if (err) {
137 pr_warn("can not parse nvram name %s%s with value %s got %i\n",
138 prefix, name, buf, err);
139 return;
140 }
141
142 if (val == 0xffff || val == 0xffffffff)
143 return;
144
145 *leddc_on_time = val & 0xff;
146 *leddc_off_time = (val >> 16) & 0xff;
147 }
148
149 static void bcm47xx_nvram_parse_macaddr(char *buf, u8 macaddr[6])
150 {
151 if (strchr(buf, ':'))
152 sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0],
153 &macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
154 &macaddr[5]);
155 else if (strchr(buf, '-'))
156 sscanf(buf, "%hhx-%hhx-%hhx-%hhx-%hhx-%hhx", &macaddr[0],
157 &macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
158 &macaddr[5]);
159 else
160 pr_warn("Can not parse mac address: %s\n", buf);
161 }
162
163 static void nvram_read_macaddr(const char *prefix, const char *name,
164 u8 val[6], bool fallback)
165 {
166 char buf[100];
167 int err;
168
169 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
170 if (err < 0)
171 return;
172
173 bcm47xx_nvram_parse_macaddr(buf, val);
174 }
175
176 static void nvram_read_alpha2(const char *prefix, const char *name,
177 char val[2], bool fallback)
178 {
179 char buf[10];
180 int err;
181
182 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
183 if (err < 0)
184 return;
185 if (buf[0] == '0')
186 return;
187 if (strlen(buf) > 2) {
188 pr_warn("alpha2 is too long %s\n", buf);
189 return;
190 }
191 memcpy(val, buf, 2);
192 }
193
194 /* This is one-function-only macro, it uses local "sprom" variable! */
195 #define ENTRY(_revmask, _type, _prefix, _name, _val, _allset, _fallback) \
196 if (_revmask & BIT(sprom->revision)) \
197 nvram_read_ ## _type(_prefix, NULL, _name, &sprom->_val, \
198 _allset, _fallback)
199 /*
200 * Special version of filling function that can be safely called for any SPROM
201 * revision. For every NVRAM to SPROM mapping it contains bitmask of revisions
202 * for which the mapping is valid.
203 * It obviously requires some hexadecimal/bitmasks knowledge, but allows
204 * writing cleaner code (easy revisions handling).
205 * Note that while SPROM revision 0 was never used, we still keep BIT(0)
206 * reserved for it, just to keep numbering sane.
207 */
208 static void bcm47xx_sprom_fill_auto(struct ssb_sprom *sprom,
209 const char *prefix, bool fallback)
210 {
211 const char *pre = prefix;
212 bool fb = fallback;
213
214 ENTRY(0xfffffffe, u16, pre, "boardrev", board_rev, 0, true);
215 ENTRY(0xfffffffe, u32, pre, "boardflags", boardflags, 0, fb);
216 ENTRY(0xfffffff0, u32, pre, "boardflags2", boardflags2, 0, fb);
217 ENTRY(0xfffff800, u32, pre, "boardflags3", boardflags3, 0, fb);
218 ENTRY(0x00000002, u16, pre, "boardflags", boardflags_lo, 0, fb);
219 ENTRY(0xfffffffc, u16, pre, "boardtype", board_type, 0, true);
220 ENTRY(0xfffffffe, u16, pre, "boardnum", board_num, 0, fb);
221 ENTRY(0x00000002, u8, pre, "cc", country_code, 0, fb);
222 ENTRY(0xfffffff8, u8, pre, "regrev", regrev, 0, fb);
223
224 ENTRY(0xfffffffe, u8, pre, "ledbh0", gpio0, 0xff, fb);
225 ENTRY(0xfffffffe, u8, pre, "ledbh1", gpio1, 0xff, fb);
226 ENTRY(0xfffffffe, u8, pre, "ledbh2", gpio2, 0xff, fb);
227 ENTRY(0xfffffffe, u8, pre, "ledbh3", gpio3, 0xff, fb);
228
229 ENTRY(0x0000070e, u16, pre, "pa0b0", pa0b0, 0, fb);
230 ENTRY(0x0000070e, u16, pre, "pa0b1", pa0b1, 0, fb);
231 ENTRY(0x0000070e, u16, pre, "pa0b2", pa0b2, 0, fb);
232 ENTRY(0x0000070e, u8, pre, "pa0itssit", itssi_bg, 0, fb);
233 ENTRY(0x0000070e, u8, pre, "pa0maxpwr", maxpwr_bg, 0, fb);
234
235 ENTRY(0x0000070c, u8, pre, "opo", opo, 0, fb);
236 ENTRY(0xfffffffe, u8, pre, "aa2g", ant_available_bg, 0, fb);
237 ENTRY(0xfffffffe, u8, pre, "aa5g", ant_available_a, 0, fb);
238 ENTRY(0x000007fe, s8, pre, "ag0", antenna_gain.a0, 0, fb);
239 ENTRY(0x000007fe, s8, pre, "ag1", antenna_gain.a1, 0, fb);
240 ENTRY(0x000007f0, s8, pre, "ag2", antenna_gain.a2, 0, fb);
241 ENTRY(0x000007f0, s8, pre, "ag3", antenna_gain.a3, 0, fb);
242
243 ENTRY(0x0000070e, u16, pre, "pa1b0", pa1b0, 0, fb);
244 ENTRY(0x0000070e, u16, pre, "pa1b1", pa1b1, 0, fb);
245 ENTRY(0x0000070e, u16, pre, "pa1b2", pa1b2, 0, fb);
246 ENTRY(0x0000070c, u16, pre, "pa1lob0", pa1lob0, 0, fb);
247 ENTRY(0x0000070c, u16, pre, "pa1lob1", pa1lob1, 0, fb);
248 ENTRY(0x0000070c, u16, pre, "pa1lob2", pa1lob2, 0, fb);
249 ENTRY(0x0000070c, u16, pre, "pa1hib0", pa1hib0, 0, fb);
250 ENTRY(0x0000070c, u16, pre, "pa1hib1", pa1hib1, 0, fb);
251 ENTRY(0x0000070c, u16, pre, "pa1hib2", pa1hib2, 0, fb);
252 ENTRY(0x0000070e, u8, pre, "pa1itssit", itssi_a, 0, fb);
253 ENTRY(0x0000070e, u8, pre, "pa1maxpwr", maxpwr_a, 0, fb);
254 ENTRY(0x0000070c, u8, pre, "pa1lomaxpwr", maxpwr_al, 0, fb);
255 ENTRY(0x0000070c, u8, pre, "pa1himaxpwr", maxpwr_ah, 0, fb);
256
257 ENTRY(0x00000708, u8, pre, "bxa2g", bxa2g, 0, fb);
258 ENTRY(0x00000708, u8, pre, "rssisav2g", rssisav2g, 0, fb);
259 ENTRY(0x00000708, u8, pre, "rssismc2g", rssismc2g, 0, fb);
260 ENTRY(0x00000708, u8, pre, "rssismf2g", rssismf2g, 0, fb);
261 ENTRY(0x00000708, u8, pre, "bxa5g", bxa5g, 0, fb);
262 ENTRY(0x00000708, u8, pre, "rssisav5g", rssisav5g, 0, fb);
263 ENTRY(0x00000708, u8, pre, "rssismc5g", rssismc5g, 0, fb);
264 ENTRY(0x00000708, u8, pre, "rssismf5g", rssismf5g, 0, fb);
265 ENTRY(0x00000708, u8, pre, "tri2g", tri2g, 0, fb);
266 ENTRY(0x00000708, u8, pre, "tri5g", tri5g, 0, fb);
267 ENTRY(0x00000708, u8, pre, "tri5gl", tri5gl, 0, fb);
268 ENTRY(0x00000708, u8, pre, "tri5gh", tri5gh, 0, fb);
269 ENTRY(0x00000708, s8, pre, "rxpo2g", rxpo2g, 0, fb);
270 ENTRY(0x00000708, s8, pre, "rxpo5g", rxpo5g, 0, fb);
271 ENTRY(0xfffffff0, u8, pre, "txchain", txchain, 0xf, fb);
272 ENTRY(0xfffffff0, u8, pre, "rxchain", rxchain, 0xf, fb);
273 ENTRY(0xfffffff0, u8, pre, "antswitch", antswitch, 0xff, fb);
274 ENTRY(0x00000700, u8, pre, "tssipos2g", fem.ghz2.tssipos, 0, fb);
275 ENTRY(0x00000700, u8, pre, "extpagain2g", fem.ghz2.extpa_gain, 0, fb);
276 ENTRY(0x00000700, u8, pre, "pdetrange2g", fem.ghz2.pdet_range, 0, fb);
277 ENTRY(0x00000700, u8, pre, "triso2g", fem.ghz2.tr_iso, 0, fb);
278 ENTRY(0x00000700, u8, pre, "antswctl2g", fem.ghz2.antswlut, 0, fb);
279 ENTRY(0x00000700, u8, pre, "tssipos5g", fem.ghz5.tssipos, 0, fb);
280 ENTRY(0x00000700, u8, pre, "extpagain5g", fem.ghz5.extpa_gain, 0, fb);
281 ENTRY(0x00000700, u8, pre, "pdetrange5g", fem.ghz5.pdet_range, 0, fb);
282 ENTRY(0x00000700, u8, pre, "triso5g", fem.ghz5.tr_iso, 0, fb);
283 ENTRY(0x00000700, u8, pre, "antswctl5g", fem.ghz5.antswlut, 0, fb);
284 ENTRY(0x000000f0, u8, pre, "txpid2ga0", txpid2g[0], 0, fb);
285 ENTRY(0x000000f0, u8, pre, "txpid2ga1", txpid2g[1], 0, fb);
286 ENTRY(0x000000f0, u8, pre, "txpid2ga2", txpid2g[2], 0, fb);
287 ENTRY(0x000000f0, u8, pre, "txpid2ga3", txpid2g[3], 0, fb);
288 ENTRY(0x000000f0, u8, pre, "txpid5ga0", txpid5g[0], 0, fb);
289 ENTRY(0x000000f0, u8, pre, "txpid5ga1", txpid5g[1], 0, fb);
290 ENTRY(0x000000f0, u8, pre, "txpid5ga2", txpid5g[2], 0, fb);
291 ENTRY(0x000000f0, u8, pre, "txpid5ga3", txpid5g[3], 0, fb);
292 ENTRY(0x000000f0, u8, pre, "txpid5gla0", txpid5gl[0], 0, fb);
293 ENTRY(0x000000f0, u8, pre, "txpid5gla1", txpid5gl[1], 0, fb);
294 ENTRY(0x000000f0, u8, pre, "txpid5gla2", txpid5gl[2], 0, fb);
295 ENTRY(0x000000f0, u8, pre, "txpid5gla3", txpid5gl[3], 0, fb);
296 ENTRY(0x000000f0, u8, pre, "txpid5gha0", txpid5gh[0], 0, fb);
297 ENTRY(0x000000f0, u8, pre, "txpid5gha1", txpid5gh[1], 0, fb);
298 ENTRY(0x000000f0, u8, pre, "txpid5gha2", txpid5gh[2], 0, fb);
299 ENTRY(0x000000f0, u8, pre, "txpid5gha3", txpid5gh[3], 0, fb);
300
301 ENTRY(0xffffff00, u8, pre, "tempthresh", tempthresh, 0, fb);
302 ENTRY(0xffffff00, u8, pre, "tempoffset", tempoffset, 0, fb);
303 ENTRY(0xffffff00, u16, pre, "rawtempsense", rawtempsense, 0, fb);
304 ENTRY(0xffffff00, u8, pre, "measpower", measpower, 0, fb);
305 ENTRY(0xffffff00, u8, pre, "tempsense_slope", tempsense_slope, 0, fb);
306 ENTRY(0xffffff00, u8, pre, "tempcorrx", tempcorrx, 0, fb);
307 ENTRY(0xffffff00, u8, pre, "tempsense_option", tempsense_option, 0, fb);
308 ENTRY(0x00000700, u8, pre, "freqoffset_corr", freqoffset_corr, 0, fb);
309 ENTRY(0x00000700, u8, pre, "iqcal_swp_dis", iqcal_swp_dis, 0, fb);
310 ENTRY(0x00000700, u8, pre, "hw_iqcal_en", hw_iqcal_en, 0, fb);
311 ENTRY(0x00000700, u8, pre, "elna2g", elna2g, 0, fb);
312 ENTRY(0x00000700, u8, pre, "elna5g", elna5g, 0, fb);
313 ENTRY(0xffffff00, u8, pre, "phycal_tempdelta", phycal_tempdelta, 0, fb);
314 ENTRY(0xffffff00, u8, pre, "temps_period", temps_period, 0, fb);
315 ENTRY(0xffffff00, u8, pre, "temps_hysteresis", temps_hysteresis, 0, fb);
316 ENTRY(0xffffff00, u8, pre, "measpower1", measpower1, 0, fb);
317 ENTRY(0xffffff00, u8, pre, "measpower2", measpower2, 0, fb);
318
319 ENTRY(0x000001f0, u16, pre, "cck2gpo", cck2gpo, 0, fb);
320 ENTRY(0x000001f0, u32, pre, "ofdm2gpo", ofdm2gpo, 0, fb);
321 ENTRY(0x000001f0, u32, pre, "ofdm5gpo", ofdm5gpo, 0, fb);
322 ENTRY(0x000001f0, u32, pre, "ofdm5glpo", ofdm5glpo, 0, fb);
323 ENTRY(0x000001f0, u32, pre, "ofdm5ghpo", ofdm5ghpo, 0, fb);
324 ENTRY(0x000001f0, u16, pre, "mcs2gpo0", mcs2gpo[0], 0, fb);
325 ENTRY(0x000001f0, u16, pre, "mcs2gpo1", mcs2gpo[1], 0, fb);
326 ENTRY(0x000001f0, u16, pre, "mcs2gpo2", mcs2gpo[2], 0, fb);
327 ENTRY(0x000001f0, u16, pre, "mcs2gpo3", mcs2gpo[3], 0, fb);
328 ENTRY(0x000001f0, u16, pre, "mcs2gpo4", mcs2gpo[4], 0, fb);
329 ENTRY(0x000001f0, u16, pre, "mcs2gpo5", mcs2gpo[5], 0, fb);
330 ENTRY(0x000001f0, u16, pre, "mcs2gpo6", mcs2gpo[6], 0, fb);
331 ENTRY(0x000001f0, u16, pre, "mcs2gpo7", mcs2gpo[7], 0, fb);
332 ENTRY(0x000001f0, u16, pre, "mcs5gpo0", mcs5gpo[0], 0, fb);
333 ENTRY(0x000001f0, u16, pre, "mcs5gpo1", mcs5gpo[1], 0, fb);
334 ENTRY(0x000001f0, u16, pre, "mcs5gpo2", mcs5gpo[2], 0, fb);
335 ENTRY(0x000001f0, u16, pre, "mcs5gpo3", mcs5gpo[3], 0, fb);
336 ENTRY(0x000001f0, u16, pre, "mcs5gpo4", mcs5gpo[4], 0, fb);
337 ENTRY(0x000001f0, u16, pre, "mcs5gpo5", mcs5gpo[5], 0, fb);
338 ENTRY(0x000001f0, u16, pre, "mcs5gpo6", mcs5gpo[6], 0, fb);
339 ENTRY(0x000001f0, u16, pre, "mcs5gpo7", mcs5gpo[7], 0, fb);
340 ENTRY(0x000001f0, u16, pre, "mcs5glpo0", mcs5glpo[0], 0, fb);
341 ENTRY(0x000001f0, u16, pre, "mcs5glpo1", mcs5glpo[1], 0, fb);
342 ENTRY(0x000001f0, u16, pre, "mcs5glpo2", mcs5glpo[2], 0, fb);
343 ENTRY(0x000001f0, u16, pre, "mcs5glpo3", mcs5glpo[3], 0, fb);
344 ENTRY(0x000001f0, u16, pre, "mcs5glpo4", mcs5glpo[4], 0, fb);
345 ENTRY(0x000001f0, u16, pre, "mcs5glpo5", mcs5glpo[5], 0, fb);
346 ENTRY(0x000001f0, u16, pre, "mcs5glpo6", mcs5glpo[6], 0, fb);
347 ENTRY(0x000001f0, u16, pre, "mcs5glpo7", mcs5glpo[7], 0, fb);
348 ENTRY(0x000001f0, u16, pre, "mcs5ghpo0", mcs5ghpo[0], 0, fb);
349 ENTRY(0x000001f0, u16, pre, "mcs5ghpo1", mcs5ghpo[1], 0, fb);
350 ENTRY(0x000001f0, u16, pre, "mcs5ghpo2", mcs5ghpo[2], 0, fb);
351 ENTRY(0x000001f0, u16, pre, "mcs5ghpo3", mcs5ghpo[3], 0, fb);
352 ENTRY(0x000001f0, u16, pre, "mcs5ghpo4", mcs5ghpo[4], 0, fb);
353 ENTRY(0x000001f0, u16, pre, "mcs5ghpo5", mcs5ghpo[5], 0, fb);
354 ENTRY(0x000001f0, u16, pre, "mcs5ghpo6", mcs5ghpo[6], 0, fb);
355 ENTRY(0x000001f0, u16, pre, "mcs5ghpo7", mcs5ghpo[7], 0, fb);
356 ENTRY(0x000001f0, u16, pre, "cddpo", cddpo, 0, fb);
357 ENTRY(0x000001f0, u16, pre, "stbcpo", stbcpo, 0, fb);
358 ENTRY(0x000001f0, u16, pre, "bw40po", bw40po, 0, fb);
359 ENTRY(0x000001f0, u16, pre, "bwduppo", bwduppo, 0, fb);
360
361 ENTRY(0xfffffe00, u16, pre, "cckbw202gpo", cckbw202gpo, 0, fb);
362 ENTRY(0xfffffe00, u16, pre, "cckbw20ul2gpo", cckbw20ul2gpo, 0, fb);
363 ENTRY(0x00000600, u32, pre, "legofdmbw202gpo", legofdmbw202gpo, 0, fb);
364 ENTRY(0x00000600, u32, pre, "legofdmbw20ul2gpo", legofdmbw20ul2gpo, 0, fb);
365 ENTRY(0x00000600, u32, pre, "legofdmbw205glpo", legofdmbw205glpo, 0, fb);
366 ENTRY(0x00000600, u32, pre, "legofdmbw20ul5glpo", legofdmbw20ul5glpo, 0, fb);
367 ENTRY(0x00000600, u32, pre, "legofdmbw205gmpo", legofdmbw205gmpo, 0, fb);
368 ENTRY(0x00000600, u32, pre, "legofdmbw20ul5gmpo", legofdmbw20ul5gmpo, 0, fb);
369 ENTRY(0x00000600, u32, pre, "legofdmbw205ghpo", legofdmbw205ghpo, 0, fb);
370 ENTRY(0x00000600, u32, pre, "legofdmbw20ul5ghpo", legofdmbw20ul5ghpo, 0, fb);
371 ENTRY(0xfffffe00, u32, pre, "mcsbw202gpo", mcsbw202gpo, 0, fb);
372 ENTRY(0x00000600, u32, pre, "mcsbw20ul2gpo", mcsbw20ul2gpo, 0, fb);
373 ENTRY(0xfffffe00, u32, pre, "mcsbw402gpo", mcsbw402gpo, 0, fb);
374 ENTRY(0xfffffe00, u32, pre, "mcsbw205glpo", mcsbw205glpo, 0, fb);
375 ENTRY(0x00000600, u32, pre, "mcsbw20ul5glpo", mcsbw20ul5glpo, 0, fb);
376 ENTRY(0xfffffe00, u32, pre, "mcsbw405glpo", mcsbw405glpo, 0, fb);
377 ENTRY(0xfffffe00, u32, pre, "mcsbw205gmpo", mcsbw205gmpo, 0, fb);
378 ENTRY(0x00000600, u32, pre, "mcsbw20ul5gmpo", mcsbw20ul5gmpo, 0, fb);
379 ENTRY(0xfffffe00, u32, pre, "mcsbw405gmpo", mcsbw405gmpo, 0, fb);
380 ENTRY(0xfffffe00, u32, pre, "mcsbw205ghpo", mcsbw205ghpo, 0, fb);
381 ENTRY(0x00000600, u32, pre, "mcsbw20ul5ghpo", mcsbw20ul5ghpo, 0, fb);
382 ENTRY(0xfffffe00, u32, pre, "mcsbw405ghpo", mcsbw405ghpo, 0, fb);
383 ENTRY(0x00000600, u16, pre, "mcs32po", mcs32po, 0, fb);
384 ENTRY(0x00000600, u16, pre, "legofdm40duppo", legofdm40duppo, 0, fb);
385 ENTRY(0x00000700, u8, pre, "pcieingress_war", pcieingress_war, 0, fb);
386
387 /* TODO: rev 11 support */
388 ENTRY(0x00000700, u8, pre, "rxgainerr2ga0", rxgainerr2ga[0], 0, fb);
389 ENTRY(0x00000700, u8, pre, "rxgainerr2ga1", rxgainerr2ga[1], 0, fb);
390 ENTRY(0x00000700, u8, pre, "rxgainerr2ga2", rxgainerr2ga[2], 0, fb);
391 ENTRY(0x00000700, u8, pre, "rxgainerr5gla0", rxgainerr5gla[0], 0, fb);
392 ENTRY(0x00000700, u8, pre, "rxgainerr5gla1", rxgainerr5gla[1], 0, fb);
393 ENTRY(0x00000700, u8, pre, "rxgainerr5gla2", rxgainerr5gla[2], 0, fb);
394 ENTRY(0x00000700, u8, pre, "rxgainerr5gma0", rxgainerr5gma[0], 0, fb);
395 ENTRY(0x00000700, u8, pre, "rxgainerr5gma1", rxgainerr5gma[1], 0, fb);
396 ENTRY(0x00000700, u8, pre, "rxgainerr5gma2", rxgainerr5gma[2], 0, fb);
397 ENTRY(0x00000700, u8, pre, "rxgainerr5gha0", rxgainerr5gha[0], 0, fb);
398 ENTRY(0x00000700, u8, pre, "rxgainerr5gha1", rxgainerr5gha[1], 0, fb);
399 ENTRY(0x00000700, u8, pre, "rxgainerr5gha2", rxgainerr5gha[2], 0, fb);
400 ENTRY(0x00000700, u8, pre, "rxgainerr5gua0", rxgainerr5gua[0], 0, fb);
401 ENTRY(0x00000700, u8, pre, "rxgainerr5gua1", rxgainerr5gua[1], 0, fb);
402 ENTRY(0x00000700, u8, pre, "rxgainerr5gua2", rxgainerr5gua[2], 0, fb);
403
404 ENTRY(0xfffffe00, u8, pre, "sar2g", sar2g, 0, fb);
405 ENTRY(0xfffffe00, u8, pre, "sar5g", sar5g, 0, fb);
406
407 /* TODO: rev 11 support */
408 ENTRY(0x00000700, u8, pre, "noiselvl2ga0", noiselvl2ga[0], 0, fb);
409 ENTRY(0x00000700, u8, pre, "noiselvl2ga1", noiselvl2ga[1], 0, fb);
410 ENTRY(0x00000700, u8, pre, "noiselvl2ga2", noiselvl2ga[2], 0, fb);
411 ENTRY(0x00000700, u8, pre, "noiselvl5gla0", noiselvl5gla[0], 0, fb);
412 ENTRY(0x00000700, u8, pre, "noiselvl5gla1", noiselvl5gla[1], 0, fb);
413 ENTRY(0x00000700, u8, pre, "noiselvl5gla2", noiselvl5gla[2], 0, fb);
414 ENTRY(0x00000700, u8, pre, "noiselvl5gma0", noiselvl5gma[0], 0, fb);
415 ENTRY(0x00000700, u8, pre, "noiselvl5gma1", noiselvl5gma[1], 0, fb);
416 ENTRY(0x00000700, u8, pre, "noiselvl5gma2", noiselvl5gma[2], 0, fb);
417 ENTRY(0x00000700, u8, pre, "noiselvl5gha0", noiselvl5gha[0], 0, fb);
418 ENTRY(0x00000700, u8, pre, "noiselvl5gha1", noiselvl5gha[1], 0, fb);
419 ENTRY(0x00000700, u8, pre, "noiselvl5gha2", noiselvl5gha[2], 0, fb);
420 ENTRY(0x00000700, u8, pre, "noiselvl5gua0", noiselvl5gua[0], 0, fb);
421 ENTRY(0x00000700, u8, pre, "noiselvl5gua1", noiselvl5gua[1], 0, fb);
422 ENTRY(0x00000700, u8, pre, "noiselvl5gua2", noiselvl5gua[2], 0, fb);
423 }
424 #undef ENTRY /* It's specififc, uses local variable, don't use it (again). */
425
426 static void bcm47xx_fill_sprom_r1234589(struct ssb_sprom *sprom,
427 const char *prefix, bool fallback)
428 {
429 nvram_read_u16(prefix, NULL, "devid", &sprom->dev_id, 0, fallback);
430 nvram_read_alpha2(prefix, "ccode", sprom->alpha2, fallback);
431 }
432
433 static void bcm47xx_fill_sprom_r3(struct ssb_sprom *sprom, const char *prefix,
434 bool fallback)
435 {
436 nvram_read_leddc(prefix, "leddc", &sprom->leddc_on_time,
437 &sprom->leddc_off_time, fallback);
438 }
439
440 static void bcm47xx_fill_sprom_r4589(struct ssb_sprom *sprom,
441 const char *prefix, bool fallback)
442 {
443 nvram_read_leddc(prefix, "leddc", &sprom->leddc_on_time,
444 &sprom->leddc_off_time, fallback);
445 }
446
447 static void bcm47xx_fill_sprom_path_r4589(struct ssb_sprom *sprom,
448 const char *prefix, bool fallback)
449 {
450 char postfix[2];
451 int i;
452
453 for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
454 struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
455 snprintf(postfix, sizeof(postfix), "%i", i);
456 nvram_read_u8(prefix, postfix, "maxp2ga",
457 &pwr_info->maxpwr_2g, 0, fallback);
458 nvram_read_u8(prefix, postfix, "itt2ga",
459 &pwr_info->itssi_2g, 0, fallback);
460 nvram_read_u8(prefix, postfix, "itt5ga",
461 &pwr_info->itssi_5g, 0, fallback);
462 nvram_read_u16(prefix, postfix, "pa2gw0a",
463 &pwr_info->pa_2g[0], 0, fallback);
464 nvram_read_u16(prefix, postfix, "pa2gw1a",
465 &pwr_info->pa_2g[1], 0, fallback);
466 nvram_read_u16(prefix, postfix, "pa2gw2a",
467 &pwr_info->pa_2g[2], 0, fallback);
468 nvram_read_u8(prefix, postfix, "maxp5ga",
469 &pwr_info->maxpwr_5g, 0, fallback);
470 nvram_read_u8(prefix, postfix, "maxp5gha",
471 &pwr_info->maxpwr_5gh, 0, fallback);
472 nvram_read_u8(prefix, postfix, "maxp5gla",
473 &pwr_info->maxpwr_5gl, 0, fallback);
474 nvram_read_u16(prefix, postfix, "pa5gw0a",
475 &pwr_info->pa_5g[0], 0, fallback);
476 nvram_read_u16(prefix, postfix, "pa5gw1a",
477 &pwr_info->pa_5g[1], 0, fallback);
478 nvram_read_u16(prefix, postfix, "pa5gw2a",
479 &pwr_info->pa_5g[2], 0, fallback);
480 nvram_read_u16(prefix, postfix, "pa5glw0a",
481 &pwr_info->pa_5gl[0], 0, fallback);
482 nvram_read_u16(prefix, postfix, "pa5glw1a",
483 &pwr_info->pa_5gl[1], 0, fallback);
484 nvram_read_u16(prefix, postfix, "pa5glw2a",
485 &pwr_info->pa_5gl[2], 0, fallback);
486 nvram_read_u16(prefix, postfix, "pa5ghw0a",
487 &pwr_info->pa_5gh[0], 0, fallback);
488 nvram_read_u16(prefix, postfix, "pa5ghw1a",
489 &pwr_info->pa_5gh[1], 0, fallback);
490 nvram_read_u16(prefix, postfix, "pa5ghw2a",
491 &pwr_info->pa_5gh[2], 0, fallback);
492 }
493 }
494
495 static void bcm47xx_fill_sprom_path_r45(struct ssb_sprom *sprom,
496 const char *prefix, bool fallback)
497 {
498 char postfix[2];
499 int i;
500
501 for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
502 struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
503 snprintf(postfix, sizeof(postfix), "%i", i);
504 nvram_read_u16(prefix, postfix, "pa2gw3a",
505 &pwr_info->pa_2g[3], 0, fallback);
506 nvram_read_u16(prefix, postfix, "pa5gw3a",
507 &pwr_info->pa_5g[3], 0, fallback);
508 nvram_read_u16(prefix, postfix, "pa5glw3a",
509 &pwr_info->pa_5gl[3], 0, fallback);
510 nvram_read_u16(prefix, postfix, "pa5ghw3a",
511 &pwr_info->pa_5gh[3], 0, fallback);
512 }
513 }
514
515 static bool bcm47xx_is_valid_mac(u8 *mac)
516 {
517 return mac && !(mac[0] == 0x00 && mac[1] == 0x90 && mac[2] == 0x4c);
518 }
519
520 static int bcm47xx_increase_mac_addr(u8 *mac, u8 num)
521 {
522 u8 *oui = mac + ETH_ALEN/2 - 1;
523 u8 *p = mac + ETH_ALEN - 1;
524
525 do {
526 (*p) += num;
527 if (*p > num)
528 break;
529 p--;
530 num = 1;
531 } while (p != oui);
532
533 if (p == oui) {
534 pr_err("unable to fetch mac address\n");
535 return -ENOENT;
536 }
537 return 0;
538 }
539
540 static int mac_addr_used = 2;
541
542 static void bcm47xx_fill_sprom_ethernet(struct ssb_sprom *sprom,
543 const char *prefix, bool fallback)
544 {
545 bool fb = fallback;
546
547 nvram_read_macaddr(prefix, "et0macaddr", sprom->et0mac, fallback);
548 nvram_read_u8(prefix, NULL, "et0mdcport", &sprom->et0mdcport, 0,
549 fallback);
550 nvram_read_u8(prefix, NULL, "et0phyaddr", &sprom->et0phyaddr, 0,
551 fallback);
552
553 nvram_read_macaddr(prefix, "et1macaddr", sprom->et1mac, fallback);
554 nvram_read_u8(prefix, NULL, "et1mdcport", &sprom->et1mdcport, 0,
555 fallback);
556 nvram_read_u8(prefix, NULL, "et1phyaddr", &sprom->et1phyaddr, 0,
557 fallback);
558
559 nvram_read_macaddr(prefix, "et2macaddr", sprom->et2mac, fb);
560 nvram_read_u8(prefix, NULL, "et2mdcport", &sprom->et2mdcport, 0, fb);
561 nvram_read_u8(prefix, NULL, "et2phyaddr", &sprom->et2phyaddr, 0, fb);
562
563 nvram_read_macaddr(prefix, "macaddr", sprom->il0mac, fallback);
564 nvram_read_macaddr(prefix, "il0macaddr", sprom->il0mac, fallback);
565
566 /* The address prefix 00:90:4C is used by Broadcom in their initial
567 configuration. When a mac address with the prefix 00:90:4C is used
568 all devices from the same series are sharing the same mac address.
569 To prevent mac address collisions we replace them with a mac address
570 based on the base address. */
571 if (!bcm47xx_is_valid_mac(sprom->il0mac)) {
572 u8 mac[6];
573
574 nvram_read_macaddr(NULL, "et0macaddr", mac, false);
575 if (bcm47xx_is_valid_mac(mac)) {
576 int err = bcm47xx_increase_mac_addr(mac, mac_addr_used);
577
578 if (!err) {
579 ether_addr_copy(sprom->il0mac, mac);
580 mac_addr_used++;
581 }
582 }
583 }
584 }
585
586 static void bcm47xx_fill_board_data(struct ssb_sprom *sprom, const char *prefix,
587 bool fallback)
588 {
589 nvram_read_u32_2(prefix, "boardflags", &sprom->boardflags_lo,
590 &sprom->boardflags_hi, fallback);
591 nvram_read_u32_2(prefix, "boardflags2", &sprom->boardflags2_lo,
592 &sprom->boardflags2_hi, fallback);
593 }
594
595 void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix,
596 bool fallback)
597 {
598 bcm47xx_fill_sprom_ethernet(sprom, prefix, fallback);
599 bcm47xx_fill_board_data(sprom, prefix, fallback);
600
601 nvram_read_u8(prefix, NULL, "sromrev", &sprom->revision, 0, fallback);
602
603 switch (sprom->revision) {
604 case 1:
605 bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
606 break;
607 case 2:
608 bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
609 break;
610 case 3:
611 bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
612 bcm47xx_fill_sprom_r3(sprom, prefix, fallback);
613 break;
614 case 4:
615 case 5:
616 bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
617 bcm47xx_fill_sprom_r4589(sprom, prefix, fallback);
618 bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
619 bcm47xx_fill_sprom_path_r45(sprom, prefix, fallback);
620 break;
621 case 8:
622 bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
623 bcm47xx_fill_sprom_r4589(sprom, prefix, fallback);
624 bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
625 break;
626 case 9:
627 bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
628 bcm47xx_fill_sprom_r4589(sprom, prefix, fallback);
629 bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
630 break;
631 default:
632 pr_warn("Unsupported SPROM revision %d detected. Will extract v1\n",
633 sprom->revision);
634 sprom->revision = 1;
635 bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
636 }
637
638 bcm47xx_sprom_fill_auto(sprom, prefix, fallback);
639 }
640
641 /*
642 * Having many NVRAM entries for PCI devices led to repeating prefixes like
643 * pci/1/1/ all the time and wasting flash space. So at some point Broadcom
644 * decided to introduce prefixes like 0: 1: 2: etc.
645 * If we find e.g. devpath0=pci/2/1 or devpath0=pci/2/1/ we should use 0:
646 * instead of pci/2/1/.
647 */
648 static void bcm47xx_sprom_apply_prefix_alias(char *prefix, size_t prefix_size)
649 {
650 size_t prefix_len = strlen(prefix);
651 size_t short_len = prefix_len - 1;
652 char nvram_var[10];
653 char buf[20];
654 int i;
655
656 if (prefix_len <= 0 || prefix[prefix_len - 1] != '/')
657 return;
658
659 for (i = 0; i < 3; i++) {
660 if (snprintf(nvram_var, sizeof(nvram_var), "devpath%d", i) <= 0)
661 continue;
662 if (bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf)) < 0)
663 continue;
664 if (!strcmp(buf, prefix) ||
665 (short_len && strlen(buf) == short_len && !strncmp(buf, prefix, short_len))) {
666 snprintf(prefix, prefix_size, "%d:", i);
667 return;
668 }
669 }
670 }
671
672 /*
673 * This function has to be called in a very precise moment. It has to be done:
674 * 1) After bcma registers flash cores, so we can read NVRAM.
675 * 2) Before any code needs SPROM content.
676 *
677 * This can be achieved only by using bcma callback.
678 */
679 static int bcm47xx_sprom_init(struct bcma_bus *bus, struct ssb_sprom *out)
680 {
681 char prefix[20];
682
683 switch (bus->hosttype) {
684 case BCMA_HOSTTYPE_PCI:
685 snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
686 pci_domain_nr(bus->host_pci->bus) + 1,
687 bus->host_pci->bus->number);
688 bcm47xx_sprom_apply_prefix_alias(prefix, sizeof(prefix));
689 bcm47xx_fill_sprom(out, prefix, false);
690 break;
691 case BCMA_HOSTTYPE_SOC:
692 bcm47xx_fill_sprom(out, NULL, false);
693 break;
694 default:
695 pr_err("Unable to fill SPROM for given hosttype.\n");
696 return -EINVAL;
697 }
698
699 return 0;
700 };
701
702 static int bcm47xx_sprom_probe(struct platform_device *pdev)
703 {
704 return bcma_arch_register_fallback_sprom(&bcm47xx_sprom_init);
705 }
706
707 static const struct of_device_id bcm47xx_sprom_of_match_table[] = {
708 { .compatible = "brcm,bcm47xx-sprom", },
709 {},
710 };
711 MODULE_DEVICE_TABLE(of, bcm47xx_sprom_of_match_table);
712
713 static struct platform_driver bcm47xx_sprom_driver = {
714 .driver = {
715 .owner = THIS_MODULE,
716 .name = "bcm47xx-sprom",
717 .of_match_table = bcm47xx_sprom_of_match_table,
718 /* driver unloading/unbinding currently not supported */
719 .suppress_bind_attrs = true,
720 },
721 .probe = bcm47xx_sprom_probe,
722 };
723 module_platform_driver(bcm47xx_sprom_driver);
724
725 MODULE_AUTHOR("Hauke Mehrtens <hauke@hauke-m.de>");
726 MODULE_LICENSE("GPL v2");