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MIPS: BCM47XX: Simplify function looking for NVRAM entry
[linux-2.6-block.git] / arch / mips / bcm47xx / sprom.c
CommitLineData
019eee2e
HM		 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 <bcm47xx.h>
103c0bf3
HM		 30#include <linux/if_ether.h>
31#include <linux/etherdevice.h>
019eee2e
HM		 32
33static void create_key(const char *prefix, const char *postfix,
34 const char *name, char *buf, int len)
35{
36 if (prefix && postfix)
37 snprintf(buf, len, "%s%s%s", prefix, name, postfix);
38 else if (prefix)
39 snprintf(buf, len, "%s%s", prefix, name);
40 else if (postfix)
41 snprintf(buf, len, "%s%s", name, postfix);
42 else
43 snprintf(buf, len, "%s", name);
44}
45
b8ebbaff
HM		 46static int get_nvram_var(const char *prefix, const char *postfix,
47 const char *name, char *buf, int len, bool fallback)
48{
49 char key[40];
50 int err;
51
52 create_key(prefix, postfix, name, key, sizeof(key));
53
111bd981 54 err = bcm47xx_nvram_getenv(key, buf, len);
ee7e2f3c 55 if (fallback && err == -ENOENT && prefix) {
b8ebbaff 56 create_key(NULL, postfix, name, key, sizeof(key));
111bd981 57 err = bcm47xx_nvram_getenv(key, buf, len);
b8ebbaff
HM		 58 }
59 return err;
60}
61
019eee2e
HM		 62#define NVRAM_READ_VAL(type) \
63static void nvram_read_ ## type (const char *prefix, \
70342287
RB		 64 const char *postfix, const char *name, \
65 type *val, type allset, bool fallback) \
019eee2e
HM		 66{ \
67 char buf[100]; \
019eee2e
HM		 68 int err; \
69 type var; \
70 \
b8ebbaff
HM		 71 err = get_nvram_var(prefix, postfix, name, buf, sizeof(buf), \
72 fallback); \
019eee2e
HM		 73 if (err < 0) \
74 return; \
924ffb7d 75 err = kstrto ## type(strim(buf), 0, &var); \
019eee2e 76 if (err) { \
b8ebbaff
HM		 77 pr_warn("can not parse nvram name %s%s%s with value %s got %i\n", \
78 prefix, name, postfix, buf, err); \
019eee2e
HM		 79 return; \
80 } \
81 if (allset && var == allset) \
82 return; \
83 *val = var; \
84}
85
86NVRAM_READ_VAL(u8)
87NVRAM_READ_VAL(s8)
88NVRAM_READ_VAL(u16)
89NVRAM_READ_VAL(u32)
90
91#undef NVRAM_READ_VAL
92
93static void nvram_read_u32_2(const char *prefix, const char *name,
b8ebbaff 94 u16 *val_lo, u16 *val_hi, bool fallback)
019eee2e
HM		 95{
96 char buf[100];
019eee2e
HM		 97 int err;
98 u32 val;
99
b8ebbaff 100 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
019eee2e
HM		 101 if (err < 0)
102 return;
924ffb7d 103 err = kstrtou32(strim(buf), 0, &val);
019eee2e 104 if (err) {
b8ebbaff
HM		 105 pr_warn("can not parse nvram name %s%s with value %s got %i\n",
106 prefix, name, buf, err);
019eee2e
HM		 107 return;
108 }
109 *val_lo = (val & 0x0000FFFFU);
110 *val_hi = (val & 0xFFFF0000U) >> 16;
111}
112
113static void nvram_read_leddc(const char *prefix, const char *name,
b8ebbaff
HM		 114 u8 *leddc_on_time, u8 *leddc_off_time,
115 bool fallback)
019eee2e
HM		 116{
117 char buf[100];
019eee2e
HM		 118 int err;
119 u32 val;
120
b8ebbaff 121 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
019eee2e
HM		 122 if (err < 0)
123 return;
924ffb7d 124 err = kstrtou32(strim(buf), 0, &val);
019eee2e 125 if (err) {
b8ebbaff
HM		 126 pr_warn("can not parse nvram name %s%s with value %s got %i\n",
127 prefix, name, buf, err);
019eee2e
HM		 128 return;
129 }
130
131 if (val == 0xffff || val == 0xffffffff)
132 return;
133
134 *leddc_on_time = val & 0xff;
135 *leddc_off_time = (val >> 16) & 0xff;
136}
137
341097f1
RM		 138static void bcm47xx_nvram_parse_macaddr(char *buf, u8 macaddr[6])
139{
140 if (strchr(buf, ':'))
141 sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0],
142 &macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
143 &macaddr[5]);
144 else if (strchr(buf, '-'))
145 sscanf(buf, "%hhx-%hhx-%hhx-%hhx-%hhx-%hhx", &macaddr[0],
146 &macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
147 &macaddr[5]);
148 else
149 pr_warn("Can not parse mac address: %s\n", buf);
150}
151
019eee2e 152static void nvram_read_macaddr(const char *prefix, const char *name,
710d86f8 153 u8 val[6], bool fallback)
019eee2e
HM		 154{
155 char buf[100];
019eee2e
HM		 156 int err;
157
b8ebbaff 158 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
019eee2e
HM		 159 if (err < 0)
160 return;
b8ebbaff 161
710d86f8 162 bcm47xx_nvram_parse_macaddr(buf, val);
019eee2e
HM		 163}
164
165static void nvram_read_alpha2(const char *prefix, const char *name,
710d86f8 166 char val[2], bool fallback)
019eee2e
HM		 167{
168 char buf[10];
019eee2e
HM		 169 int err;
170
b8ebbaff 171 err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
019eee2e
HM		 172 if (err < 0)
173 return;
174 if (buf[0] == '0')
175 return;
176 if (strlen(buf) > 2) {
b8ebbaff 177 pr_warn("alpha2 is too long %s\n", buf);
019eee2e
HM		 178 return;
179 }
710d86f8 180 memcpy(val, buf, 2);
019eee2e
HM		 181}
182
d55a52cc
RM		 183/* This is one-function-only macro, it uses local "sprom" variable! */
184#define ENTRY(_revmask, _type, _prefix, _name, _val, _allset, _fallback) \
185 if (_revmask & BIT(sprom->revision)) \
186 nvram_read_ ## _type(_prefix, NULL, _name, &sprom->_val, \
187 _allset, _fallback)
188/*
189 * Special version of filling function that can be safely called for any SPROM
190 * revision. For every NVRAM to SPROM mapping it contains bitmask of revisions
191 * for which the mapping is valid.
192 * It obviously requires some hexadecimal/bitmasks knowledge, but allows
193 * writing cleaner code (easy revisions handling).
194 * Note that while SPROM revision 0 was never used, we still keep BIT(0)
195 * reserved for it, just to keep numbering sane.
196 */
197static void bcm47xx_sprom_fill_auto(struct ssb_sprom *sprom,
198 const char *prefix, bool fallback)
199{
200 const char *pre = prefix;
201 bool fb = fallback;
202
203 ENTRY(0xfffffffe, u16, pre, "boardrev", board_rev, 0, true);
e754dfcf
RM		 204 ENTRY(0x00000002, u16, pre, "boardflags", boardflags_lo, 0, fb);
205 ENTRY(0xfffffffc, u16, pre, "boardtype", board_type, 0, true);
d55a52cc 206 ENTRY(0xfffffffe, u16, pre, "boardnum", board_num, 0, fb);
e754dfcf
RM		 207 ENTRY(0x00000002, u8, pre, "cc", country_code, 0, fb);
208 ENTRY(0xfffffff8, u8, pre, "regrev", regrev, 0, fb);
209
210 ENTRY(0xfffffffe, u8, pre, "ledbh0", gpio0, 0xff, fb);
211 ENTRY(0xfffffffe, u8, pre, "ledbh1", gpio1, 0xff, fb);
212 ENTRY(0xfffffffe, u8, pre, "ledbh2", gpio2, 0xff, fb);
213 ENTRY(0xfffffffe, u8, pre, "ledbh3", gpio3, 0xff, fb);
214
215 ENTRY(0x0000070e, u16, pre, "pa0b0", pa0b0, 0, fb);
216 ENTRY(0x0000070e, u16, pre, "pa0b1", pa0b1, 0, fb);
217 ENTRY(0x0000070e, u16, pre, "pa0b2", pa0b2, 0, fb);
218 ENTRY(0x0000070e, u8, pre, "pa0itssit", itssi_bg, 0, fb);
219 ENTRY(0x0000070e, u8, pre, "pa0maxpwr", maxpwr_bg, 0, fb);
220
221 ENTRY(0x0000070c, u8, pre, "opo", opo, 0, fb);
222 ENTRY(0xfffffffe, u8, pre, "aa2g", ant_available_bg, 0, fb);
223 ENTRY(0xfffffffe, u8, pre, "aa5g", ant_available_a, 0, fb);
224 ENTRY(0x000007fe, s8, pre, "ag0", antenna_gain.a0, 0, fb);
225 ENTRY(0x000007fe, s8, pre, "ag1", antenna_gain.a1, 0, fb);
226 ENTRY(0x000007f0, s8, pre, "ag2", antenna_gain.a2, 0, fb);
227 ENTRY(0x000007f0, s8, pre, "ag3", antenna_gain.a3, 0, fb);
228
229 ENTRY(0x0000070e, u16, pre, "pa1b0", pa1b0, 0, fb);
230 ENTRY(0x0000070e, u16, pre, "pa1b1", pa1b1, 0, fb);
231 ENTRY(0x0000070e, u16, pre, "pa1b2", pa1b2, 0, fb);
232 ENTRY(0x0000070c, u16, pre, "pa1lob0", pa1lob0, 0, fb);
233 ENTRY(0x0000070c, u16, pre, "pa1lob1", pa1lob1, 0, fb);
234 ENTRY(0x0000070c, u16, pre, "pa1lob2", pa1lob2, 0, fb);
235 ENTRY(0x0000070c, u16, pre, "pa1hib0", pa1hib0, 0, fb);
236 ENTRY(0x0000070c, u16, pre, "pa1hib1", pa1hib1, 0, fb);
237 ENTRY(0x0000070c, u16, pre, "pa1hib2", pa1hib2, 0, fb);
238 ENTRY(0x0000070e, u8, pre, "pa1itssit", itssi_a, 0, fb);
239 ENTRY(0x0000070e, u8, pre, "pa1maxpwr", maxpwr_a, 0, fb);
240 ENTRY(0x0000070c, u8, pre, "pa1lomaxpwr", maxpwr_al, 0, fb);
241 ENTRY(0x0000070c, u8, pre, "pa1himaxpwr", maxpwr_ah, 0, fb);
242
243 ENTRY(0x00000708, u8, pre, "bxa2g", bxa2g, 0, fb);
244 ENTRY(0x00000708, u8, pre, "rssisav2g", rssisav2g, 0, fb);
245 ENTRY(0x00000708, u8, pre, "rssismc2g", rssismc2g, 0, fb);
246 ENTRY(0x00000708, u8, pre, "rssismf2g", rssismf2g, 0, fb);
247 ENTRY(0x00000708, u8, pre, "bxa5g", bxa5g, 0, fb);
248 ENTRY(0x00000708, u8, pre, "rssisav5g", rssisav5g, 0, fb);
249 ENTRY(0x00000708, u8, pre, "rssismc5g", rssismc5g, 0, fb);
250 ENTRY(0x00000708, u8, pre, "rssismf5g", rssismf5g, 0, fb);
251 ENTRY(0x00000708, u8, pre, "tri2g", tri2g, 0, fb);
252 ENTRY(0x00000708, u8, pre, "tri5g", tri5g, 0, fb);
253 ENTRY(0x00000708, u8, pre, "tri5gl", tri5gl, 0, fb);
254 ENTRY(0x00000708, u8, pre, "tri5gh", tri5gh, 0, fb);
255 ENTRY(0x00000708, s8, pre, "rxpo2g", rxpo2g, 0, fb);
256 ENTRY(0x00000708, s8, pre, "rxpo5g", rxpo5g, 0, fb);
257 ENTRY(0xfffffff0, u8, pre, "txchain", txchain, 0xf, fb);
258 ENTRY(0xfffffff0, u8, pre, "rxchain", rxchain, 0xf, fb);
259 ENTRY(0xfffffff0, u8, pre, "antswitch", antswitch, 0xff, fb);
260 ENTRY(0x00000700, u8, pre, "tssipos2g", fem.ghz2.tssipos, 0, fb);
261 ENTRY(0x00000700, u8, pre, "extpagain2g", fem.ghz2.extpa_gain, 0, fb);
262 ENTRY(0x00000700, u8, pre, "pdetrange2g", fem.ghz2.pdet_range, 0, fb);
263 ENTRY(0x00000700, u8, pre, "triso2g", fem.ghz2.tr_iso, 0, fb);
264 ENTRY(0x00000700, u8, pre, "antswctl2g", fem.ghz2.antswlut, 0, fb);
265 ENTRY(0x00000700, u8, pre, "tssipos5g", fem.ghz5.tssipos, 0, fb);
266 ENTRY(0x00000700, u8, pre, "extpagain5g", fem.ghz5.extpa_gain, 0, fb);
267 ENTRY(0x00000700, u8, pre, "pdetrange5g", fem.ghz5.pdet_range, 0, fb);
268 ENTRY(0x00000700, u8, pre, "triso5g", fem.ghz5.tr_iso, 0, fb);
269 ENTRY(0x00000700, u8, pre, "antswctl5g", fem.ghz5.antswlut, 0, fb);
270 ENTRY(0x000000f0, u8, pre, "txpid2ga0", txpid2g[0], 0, fb);
271 ENTRY(0x000000f0, u8, pre, "txpid2ga1", txpid2g[1], 0, fb);
272 ENTRY(0x000000f0, u8, pre, "txpid2ga2", txpid2g[2], 0, fb);
273 ENTRY(0x000000f0, u8, pre, "txpid2ga3", txpid2g[3], 0, fb);
274 ENTRY(0x000000f0, u8, pre, "txpid5ga0", txpid5g[0], 0, fb);
275 ENTRY(0x000000f0, u8, pre, "txpid5ga1", txpid5g[1], 0, fb);
276 ENTRY(0x000000f0, u8, pre, "txpid5ga2", txpid5g[2], 0, fb);
277 ENTRY(0x000000f0, u8, pre, "txpid5ga3", txpid5g[3], 0, fb);
278 ENTRY(0x000000f0, u8, pre, "txpid5gla0", txpid5gl[0], 0, fb);
279 ENTRY(0x000000f0, u8, pre, "txpid5gla1", txpid5gl[1], 0, fb);
280 ENTRY(0x000000f0, u8, pre, "txpid5gla2", txpid5gl[2], 0, fb);
281 ENTRY(0x000000f0, u8, pre, "txpid5gla3", txpid5gl[3], 0, fb);
282 ENTRY(0x000000f0, u8, pre, "txpid5gha0", txpid5gh[0], 0, fb);
283 ENTRY(0x000000f0, u8, pre, "txpid5gha1", txpid5gh[1], 0, fb);
284 ENTRY(0x000000f0, u8, pre, "txpid5gha2", txpid5gh[2], 0, fb);
285 ENTRY(0x000000f0, u8, pre, "txpid5gha3", txpid5gh[3], 0, fb);
286
287 ENTRY(0xffffff00, u8, pre, "tempthresh", tempthresh, 0, fb);
288 ENTRY(0xffffff00, u8, pre, "tempoffset", tempoffset, 0, fb);
289 ENTRY(0xffffff00, u16, pre, "rawtempsense", rawtempsense, 0, fb);
290 ENTRY(0xffffff00, u8, pre, "measpower", measpower, 0, fb);
291 ENTRY(0xffffff00, u8, pre, "tempsense_slope", tempsense_slope, 0, fb);
292 ENTRY(0xffffff00, u8, pre, "tempcorrx", tempcorrx, 0, fb);
293 ENTRY(0xffffff00, u8, pre, "tempsense_option", tempsense_option, 0, fb);
294 ENTRY(0x00000700, u8, pre, "freqoffset_corr", freqoffset_corr, 0, fb);
295 ENTRY(0x00000700, u8, pre, "iqcal_swp_dis", iqcal_swp_dis, 0, fb);
296 ENTRY(0x00000700, u8, pre, "hw_iqcal_en", hw_iqcal_en, 0, fb);
297 ENTRY(0x00000700, u8, pre, "elna2g", elna2g, 0, fb);
298 ENTRY(0x00000700, u8, pre, "elna5g", elna5g, 0, fb);
299 ENTRY(0xffffff00, u8, pre, "phycal_tempdelta", phycal_tempdelta, 0, fb);
300 ENTRY(0xffffff00, u8, pre, "temps_period", temps_period, 0, fb);
301 ENTRY(0xffffff00, u8, pre, "temps_hysteresis", temps_hysteresis, 0, fb);
302 ENTRY(0xffffff00, u8, pre, "measpower1", measpower1, 0, fb);
303 ENTRY(0xffffff00, u8, pre, "measpower2", measpower2, 0, fb);
304
305 ENTRY(0x000001f0, u16, pre, "cck2gpo", cck2gpo, 0, fb);
306 ENTRY(0x000001f0, u32, pre, "ofdm2gpo", ofdm2gpo, 0, fb);
307 ENTRY(0x000001f0, u32, pre, "ofdm5gpo", ofdm5gpo, 0, fb);
308 ENTRY(0x000001f0, u32, pre, "ofdm5glpo", ofdm5glpo, 0, fb);
309 ENTRY(0x000001f0, u32, pre, "ofdm5ghpo", ofdm5ghpo, 0, fb);
310 ENTRY(0x000001f0, u16, pre, "mcs2gpo0", mcs2gpo[0], 0, fb);
311 ENTRY(0x000001f0, u16, pre, "mcs2gpo1", mcs2gpo[1], 0, fb);
312 ENTRY(0x000001f0, u16, pre, "mcs2gpo2", mcs2gpo[2], 0, fb);
313 ENTRY(0x000001f0, u16, pre, "mcs2gpo3", mcs2gpo[3], 0, fb);
314 ENTRY(0x000001f0, u16, pre, "mcs2gpo4", mcs2gpo[4], 0, fb);
315 ENTRY(0x000001f0, u16, pre, "mcs2gpo5", mcs2gpo[5], 0, fb);
316 ENTRY(0x000001f0, u16, pre, "mcs2gpo6", mcs2gpo[6], 0, fb);
317 ENTRY(0x000001f0, u16, pre, "mcs2gpo7", mcs2gpo[7], 0, fb);
318 ENTRY(0x000001f0, u16, pre, "mcs5gpo0", mcs5gpo[0], 0, fb);
319 ENTRY(0x000001f0, u16, pre, "mcs5gpo1", mcs5gpo[1], 0, fb);
320 ENTRY(0x000001f0, u16, pre, "mcs5gpo2", mcs5gpo[2], 0, fb);
321 ENTRY(0x000001f0, u16, pre, "mcs5gpo3", mcs5gpo[3], 0, fb);
322 ENTRY(0x000001f0, u16, pre, "mcs5gpo4", mcs5gpo[4], 0, fb);
323 ENTRY(0x000001f0, u16, pre, "mcs5gpo5", mcs5gpo[5], 0, fb);
324 ENTRY(0x000001f0, u16, pre, "mcs5gpo6", mcs5gpo[6], 0, fb);
325 ENTRY(0x000001f0, u16, pre, "mcs5gpo7", mcs5gpo[7], 0, fb);
326 ENTRY(0x000001f0, u16, pre, "mcs5glpo0", mcs5glpo[0], 0, fb);
327 ENTRY(0x000001f0, u16, pre, "mcs5glpo1", mcs5glpo[1], 0, fb);
328 ENTRY(0x000001f0, u16, pre, "mcs5glpo2", mcs5glpo[2], 0, fb);
329 ENTRY(0x000001f0, u16, pre, "mcs5glpo3", mcs5glpo[3], 0, fb);
330 ENTRY(0x000001f0, u16, pre, "mcs5glpo4", mcs5glpo[4], 0, fb);
331 ENTRY(0x000001f0, u16, pre, "mcs5glpo5", mcs5glpo[5], 0, fb);
332 ENTRY(0x000001f0, u16, pre, "mcs5glpo6", mcs5glpo[6], 0, fb);
333 ENTRY(0x000001f0, u16, pre, "mcs5glpo7", mcs5glpo[7], 0, fb);
334 ENTRY(0x000001f0, u16, pre, "mcs5ghpo0", mcs5ghpo[0], 0, fb);
335 ENTRY(0x000001f0, u16, pre, "mcs5ghpo1", mcs5ghpo[1], 0, fb);
336 ENTRY(0x000001f0, u16, pre, "mcs5ghpo2", mcs5ghpo[2], 0, fb);
337 ENTRY(0x000001f0, u16, pre, "mcs5ghpo3", mcs5ghpo[3], 0, fb);
338 ENTRY(0x000001f0, u16, pre, "mcs5ghpo4", mcs5ghpo[4], 0, fb);
339 ENTRY(0x000001f0, u16, pre, "mcs5ghpo5", mcs5ghpo[5], 0, fb);
340 ENTRY(0x000001f0, u16, pre, "mcs5ghpo6", mcs5ghpo[6], 0, fb);
341 ENTRY(0x000001f0, u16, pre, "mcs5ghpo7", mcs5ghpo[7], 0, fb);
342 ENTRY(0x000001f0, u16, pre, "cddpo", cddpo, 0, fb);
343 ENTRY(0x000001f0, u16, pre, "stbcpo", stbcpo, 0, fb);
344 ENTRY(0x000001f0, u16, pre, "bw40po", bw40po, 0, fb);
345 ENTRY(0x000001f0, u16, pre, "bwduppo", bwduppo, 0, fb);
346
347 ENTRY(0xfffffe00, u16, pre, "cckbw202gpo", cckbw202gpo, 0, fb);
348 ENTRY(0xfffffe00, u16, pre, "cckbw20ul2gpo", cckbw20ul2gpo, 0, fb);
349 ENTRY(0x00000600, u32, pre, "legofdmbw202gpo", legofdmbw202gpo, 0, fb);
350 ENTRY(0x00000600, u32, pre, "legofdmbw20ul2gpo", legofdmbw20ul2gpo, 0, fb);
351 ENTRY(0x00000600, u32, pre, "legofdmbw205glpo", legofdmbw205glpo, 0, fb);
352 ENTRY(0x00000600, u32, pre, "legofdmbw20ul5glpo", legofdmbw20ul5glpo, 0, fb);
353 ENTRY(0x00000600, u32, pre, "legofdmbw205gmpo", legofdmbw205gmpo, 0, fb);
354 ENTRY(0x00000600, u32, pre, "legofdmbw20ul5gmpo", legofdmbw20ul5gmpo, 0, fb);
355 ENTRY(0x00000600, u32, pre, "legofdmbw205ghpo", legofdmbw205ghpo, 0, fb);
356 ENTRY(0x00000600, u32, pre, "legofdmbw20ul5ghpo", legofdmbw20ul5ghpo, 0, fb);
357 ENTRY(0xfffffe00, u32, pre, "mcsbw202gpo", mcsbw202gpo, 0, fb);
358 ENTRY(0x00000600, u32, pre, "mcsbw20ul2gpo", mcsbw20ul2gpo, 0, fb);
359 ENTRY(0xfffffe00, u32, pre, "mcsbw402gpo", mcsbw402gpo, 0, fb);
360 ENTRY(0xfffffe00, u32, pre, "mcsbw205glpo", mcsbw205glpo, 0, fb);
361 ENTRY(0x00000600, u32, pre, "mcsbw20ul5glpo", mcsbw20ul5glpo, 0, fb);
362 ENTRY(0xfffffe00, u32, pre, "mcsbw405glpo", mcsbw405glpo, 0, fb);
363 ENTRY(0xfffffe00, u32, pre, "mcsbw205gmpo", mcsbw205gmpo, 0, fb);
364 ENTRY(0x00000600, u32, pre, "mcsbw20ul5gmpo", mcsbw20ul5gmpo, 0, fb);
365 ENTRY(0xfffffe00, u32, pre, "mcsbw405gmpo", mcsbw405gmpo, 0, fb);
366 ENTRY(0xfffffe00, u32, pre, "mcsbw205ghpo", mcsbw205ghpo, 0, fb);
367 ENTRY(0x00000600, u32, pre, "mcsbw20ul5ghpo", mcsbw20ul5ghpo, 0, fb);
368 ENTRY(0xfffffe00, u32, pre, "mcsbw405ghpo", mcsbw405ghpo, 0, fb);
369 ENTRY(0x00000600, u16, pre, "mcs32po", mcs32po, 0, fb);
370 ENTRY(0x00000600, u16, pre, "legofdm40duppo", legofdm40duppo, 0, fb);
371 ENTRY(0x00000700, u8, pre, "pcieingress_war", pcieingress_war, 0, fb);
372
373 /* TODO: rev 11 support */
374 ENTRY(0x00000700, u8, pre, "rxgainerr2ga0", rxgainerr2ga[0], 0, fb);
375 ENTRY(0x00000700, u8, pre, "rxgainerr2ga1", rxgainerr2ga[1], 0, fb);
376 ENTRY(0x00000700, u8, pre, "rxgainerr2ga2", rxgainerr2ga[2], 0, fb);
377 ENTRY(0x00000700, u8, pre, "rxgainerr5gla0", rxgainerr5gla[0], 0, fb);
378 ENTRY(0x00000700, u8, pre, "rxgainerr5gla1", rxgainerr5gla[1], 0, fb);
379 ENTRY(0x00000700, u8, pre, "rxgainerr5gla2", rxgainerr5gla[2], 0, fb);
380 ENTRY(0x00000700, u8, pre, "rxgainerr5gma0", rxgainerr5gma[0], 0, fb);
381 ENTRY(0x00000700, u8, pre, "rxgainerr5gma1", rxgainerr5gma[1], 0, fb);
382 ENTRY(0x00000700, u8, pre, "rxgainerr5gma2", rxgainerr5gma[2], 0, fb);
383 ENTRY(0x00000700, u8, pre, "rxgainerr5gha0", rxgainerr5gha[0], 0, fb);
384 ENTRY(0x00000700, u8, pre, "rxgainerr5gha1", rxgainerr5gha[1], 0, fb);
385 ENTRY(0x00000700, u8, pre, "rxgainerr5gha2", rxgainerr5gha[2], 0, fb);
386 ENTRY(0x00000700, u8, pre, "rxgainerr5gua0", rxgainerr5gua[0], 0, fb);
387 ENTRY(0x00000700, u8, pre, "rxgainerr5gua1", rxgainerr5gua[1], 0, fb);
388 ENTRY(0x00000700, u8, pre, "rxgainerr5gua2", rxgainerr5gua[2], 0, fb);
389
390 ENTRY(0xfffffe00, u8, pre, "sar2g", sar2g, 0, fb);
391 ENTRY(0xfffffe00, u8, pre, "sar5g", sar5g, 0, fb);
392
393 /* TODO: rev 11 support */
394 ENTRY(0x00000700, u8, pre, "noiselvl2ga0", noiselvl2ga[0], 0, fb);
395 ENTRY(0x00000700, u8, pre, "noiselvl2ga1", noiselvl2ga[1], 0, fb);
396 ENTRY(0x00000700, u8, pre, "noiselvl2ga2", noiselvl2ga[2], 0, fb);
397 ENTRY(0x00000700, u8, pre, "noiselvl5gla0", noiselvl5gla[0], 0, fb);
398 ENTRY(0x00000700, u8, pre, "noiselvl5gla1", noiselvl5gla[1], 0, fb);
399 ENTRY(0x00000700, u8, pre, "noiselvl5gla2", noiselvl5gla[2], 0, fb);
400 ENTRY(0x00000700, u8, pre, "noiselvl5gma0", noiselvl5gma[0], 0, fb);
401 ENTRY(0x00000700, u8, pre, "noiselvl5gma1", noiselvl5gma[1], 0, fb);
402 ENTRY(0x00000700, u8, pre, "noiselvl5gma2", noiselvl5gma[2], 0, fb);
403 ENTRY(0x00000700, u8, pre, "noiselvl5gha0", noiselvl5gha[0], 0, fb);
404 ENTRY(0x00000700, u8, pre, "noiselvl5gha1", noiselvl5gha[1], 0, fb);
405 ENTRY(0x00000700, u8, pre, "noiselvl5gha2", noiselvl5gha[2], 0, fb);
406 ENTRY(0x00000700, u8, pre, "noiselvl5gua0", noiselvl5gua[0], 0, fb);
407 ENTRY(0x00000700, u8, pre, "noiselvl5gua1", noiselvl5gua[1], 0, fb);
408 ENTRY(0x00000700, u8, pre, "noiselvl5gua2", noiselvl5gua[2], 0, fb);
d55a52cc
RM		 409}
410#undef ENTRY /* It's specififc, uses local variable, don't use it (again). */
411
019eee2e 412static void bcm47xx_fill_sprom_r1234589(struct ssb_sprom *sprom,
b8ebbaff 413 const char *prefix, bool fallback)
019eee2e 414{
4f4aa2ec 415 nvram_read_u16(prefix, NULL, "devid", &sprom->dev_id, 0, fallback);
710d86f8 416 nvram_read_alpha2(prefix, "ccode", sprom->alpha2, fallback);
019eee2e
HM		 417}
418
b8ebbaff
HM		 419static void bcm47xx_fill_sprom_r3(struct ssb_sprom *sprom, const char *prefix,
420 bool fallback)
019eee2e 421{
019eee2e 422 nvram_read_leddc(prefix, "leddc", &sprom->leddc_on_time,
b8ebbaff 423 &sprom->leddc_off_time, fallback);
019eee2e
HM		 424}
425
426static void bcm47xx_fill_sprom_r4589(struct ssb_sprom *sprom,
b8ebbaff 427 const char *prefix, bool fallback)
019eee2e 428{
019eee2e 429 nvram_read_leddc(prefix, "leddc", &sprom->leddc_on_time,
b8ebbaff 430 &sprom->leddc_off_time, fallback);
019eee2e
HM		 431}
432
019eee2e 433static void bcm47xx_fill_sprom_path_r4589(struct ssb_sprom *sprom,
b8ebbaff 434 const char *prefix, bool fallback)
019eee2e
HM		 435{
436 char postfix[2];
437 int i;
438
439 for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
440 struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
441 snprintf(postfix, sizeof(postfix), "%i", i);
442 nvram_read_u8(prefix, postfix, "maxp2ga",
b8ebbaff 443 &pwr_info->maxpwr_2g, 0, fallback);
019eee2e 444 nvram_read_u8(prefix, postfix, "itt2ga",
b8ebbaff 445 &pwr_info->itssi_2g, 0, fallback);
019eee2e 446 nvram_read_u8(prefix, postfix, "itt5ga",
b8ebbaff 447 &pwr_info->itssi_5g, 0, fallback);
019eee2e 448 nvram_read_u16(prefix, postfix, "pa2gw0a",
b8ebbaff 449 &pwr_info->pa_2g[0], 0, fallback);
019eee2e 450 nvram_read_u16(prefix, postfix, "pa2gw1a",
b8ebbaff 451 &pwr_info->pa_2g[1], 0, fallback);
019eee2e 452 nvram_read_u16(prefix, postfix, "pa2gw2a",
b8ebbaff 453 &pwr_info->pa_2g[2], 0, fallback);
019eee2e 454 nvram_read_u8(prefix, postfix, "maxp5ga",
b8ebbaff 455 &pwr_info->maxpwr_5g, 0, fallback);
019eee2e 456 nvram_read_u8(prefix, postfix, "maxp5gha",
b8ebbaff 457 &pwr_info->maxpwr_5gh, 0, fallback);
019eee2e 458 nvram_read_u8(prefix, postfix, "maxp5gla",
b8ebbaff 459 &pwr_info->maxpwr_5gl, 0, fallback);
019eee2e 460 nvram_read_u16(prefix, postfix, "pa5gw0a",
b8ebbaff 461 &pwr_info->pa_5g[0], 0, fallback);
019eee2e 462 nvram_read_u16(prefix, postfix, "pa5gw1a",
b8ebbaff 463 &pwr_info->pa_5g[1], 0, fallback);
019eee2e 464 nvram_read_u16(prefix, postfix, "pa5gw2a",
b8ebbaff 465 &pwr_info->pa_5g[2], 0, fallback);
019eee2e 466 nvram_read_u16(prefix, postfix, "pa5glw0a",
b8ebbaff 467 &pwr_info->pa_5gl[0], 0, fallback);
019eee2e 468 nvram_read_u16(prefix, postfix, "pa5glw1a",
b8ebbaff 469 &pwr_info->pa_5gl[1], 0, fallback);
019eee2e 470 nvram_read_u16(prefix, postfix, "pa5glw2a",
b8ebbaff 471 &pwr_info->pa_5gl[2], 0, fallback);
019eee2e 472 nvram_read_u16(prefix, postfix, "pa5ghw0a",
b8ebbaff 473 &pwr_info->pa_5gh[0], 0, fallback);
019eee2e 474 nvram_read_u16(prefix, postfix, "pa5ghw1a",
b8ebbaff 475 &pwr_info->pa_5gh[1], 0, fallback);
019eee2e 476 nvram_read_u16(prefix, postfix, "pa5ghw2a",
b8ebbaff 477 &pwr_info->pa_5gh[2], 0, fallback);
019eee2e
HM		 478 }
479}
480
481static void bcm47xx_fill_sprom_path_r45(struct ssb_sprom *sprom,
b8ebbaff 482 const char *prefix, bool fallback)
019eee2e
HM		 483{
484 char postfix[2];
485 int i;
486
487 for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
488 struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
489 snprintf(postfix, sizeof(postfix), "%i", i);
490 nvram_read_u16(prefix, postfix, "pa2gw3a",
b8ebbaff 491 &pwr_info->pa_2g[3], 0, fallback);
019eee2e 492 nvram_read_u16(prefix, postfix, "pa5gw3a",
b8ebbaff 493 &pwr_info->pa_5g[3], 0, fallback);
019eee2e 494 nvram_read_u16(prefix, postfix, "pa5glw3a",
b8ebbaff 495 &pwr_info->pa_5gl[3], 0, fallback);
019eee2e 496 nvram_read_u16(prefix, postfix, "pa5ghw3a",
b8ebbaff 497 &pwr_info->pa_5gh[3], 0, fallback);
019eee2e
HM		 498 }
499}
500
103c0bf3
HM		 501static bool bcm47xx_is_valid_mac(u8 *mac)
502{
503 return mac && !(mac[0] == 0x00 && mac[1] == 0x90 && mac[2] == 0x4c);
504}
505
506static int bcm47xx_increase_mac_addr(u8 *mac, u8 num)
507{
508 u8 *oui = mac + ETH_ALEN/2 - 1;
509 u8 *p = mac + ETH_ALEN - 1;
510
511 do {
512 (*p) += num;
513 if (*p > num)
514 break;
515 p--;
516 num = 1;
517 } while (p != oui);
518
519 if (p == oui) {
520 pr_err("unable to fetch mac address\n");
521 return -ENOENT;
522 }
523 return 0;
524}
525
526static int mac_addr_used = 2;
527
b8ebbaff
HM		 528static void bcm47xx_fill_sprom_ethernet(struct ssb_sprom *sprom,
529 const char *prefix, bool fallback)
019eee2e 530{
710d86f8 531 nvram_read_macaddr(prefix, "et0macaddr", sprom->et0mac, fallback);
b8ebbaff
HM		 532 nvram_read_u8(prefix, NULL, "et0mdcport", &sprom->et0mdcport, 0,
533 fallback);
534 nvram_read_u8(prefix, NULL, "et0phyaddr", &sprom->et0phyaddr, 0,
535 fallback);
536
710d86f8 537 nvram_read_macaddr(prefix, "et1macaddr", sprom->et1mac, fallback);
b8ebbaff
HM		 538 nvram_read_u8(prefix, NULL, "et1mdcport", &sprom->et1mdcport, 0,
539 fallback);
540 nvram_read_u8(prefix, NULL, "et1phyaddr", &sprom->et1phyaddr, 0,
541 fallback);
542
710d86f8
IM		 543 nvram_read_macaddr(prefix, "macaddr", sprom->il0mac, fallback);
544 nvram_read_macaddr(prefix, "il0macaddr", sprom->il0mac, fallback);
103c0bf3
HM		 545
546 /* The address prefix 00:90:4C is used by Broadcom in their initial
547 configuration. When a mac address with the prefix 00:90:4C is used
548 all devices from the same series are sharing the same mac address.
549 To prevent mac address collisions we replace them with a mac address
550 based on the base address. */
551 if (!bcm47xx_is_valid_mac(sprom->il0mac)) {
552 u8 mac[6];
553
554 nvram_read_macaddr(NULL, "et0macaddr", mac, false);
555 if (bcm47xx_is_valid_mac(mac)) {
556 int err = bcm47xx_increase_mac_addr(mac, mac_addr_used);
557
558 if (!err) {
559 ether_addr_copy(sprom->il0mac, mac);
560 mac_addr_used++;
561 }
562 }
563 }
019eee2e
HM		 564}
565
b8ebbaff
HM		 566static void bcm47xx_fill_board_data(struct ssb_sprom *sprom, const char *prefix,
567 bool fallback)
5d24ceab 568{
5d24ceab 569 nvram_read_u32_2(prefix, "boardflags", &sprom->boardflags_lo,
b8ebbaff 570 &sprom->boardflags_hi, fallback);
5d24ceab 571 nvram_read_u32_2(prefix, "boardflags2", &sprom->boardflags2_lo,
b8ebbaff 572 &sprom->boardflags2_hi, fallback);
5d24ceab
HM		 573}
574
b8ebbaff
HM		 575void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix,
576 bool fallback)
019eee2e 577{
b8ebbaff
HM		 578 bcm47xx_fill_sprom_ethernet(sprom, prefix, fallback);
579 bcm47xx_fill_board_data(sprom, prefix, fallback);
019eee2e 580
b8ebbaff 581 nvram_read_u8(prefix, NULL, "sromrev", &sprom->revision, 0, fallback);
019eee2e
HM		 582
583 switch (sprom->revision) {
584 case 1:
b8ebbaff 585 bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
019eee2e
HM		 586 break;
587 case 2:
b8ebbaff 588 bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
019eee2e
HM		 589 break;
590 case 3:
b8ebbaff 591 bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
b8ebbaff 592 bcm47xx_fill_sprom_r3(sprom, prefix, fallback);
019eee2e
HM		 593 break;
594 case 4:
595 case 5:
b8ebbaff
HM		 596 bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
597 bcm47xx_fill_sprom_r4589(sprom, prefix, fallback);
b8ebbaff
HM		 598 bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
599 bcm47xx_fill_sprom_path_r45(sprom, prefix, fallback);
019eee2e
HM		 600 break;
601 case 8:
b8ebbaff 602 bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
b8ebbaff 603 bcm47xx_fill_sprom_r4589(sprom, prefix, fallback);
b8ebbaff 604 bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
019eee2e
HM		 605 break;
606 case 9:
b8ebbaff 607 bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
b8ebbaff 608 bcm47xx_fill_sprom_r4589(sprom, prefix, fallback);
b8ebbaff 609 bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
019eee2e
HM		 610 break;
611 default:
d548ca6b
RM		 612 pr_warn("Unsupported SPROM revision %d detected. Will extract v1\n",
613 sprom->revision);
019eee2e 614 sprom->revision = 1;
b8ebbaff 615 bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
019eee2e 616 }
d55a52cc
RM		 617
618 bcm47xx_sprom_fill_auto(sprom, prefix, fallback);
019eee2e 619}
a9bba182
HM		 620
621#ifdef CONFIG_BCM47XX_SSB
622void bcm47xx_fill_ssb_boardinfo(struct ssb_boardinfo *boardinfo,
623 const char *prefix)
624{
b8ebbaff
HM		 625 nvram_read_u16(prefix, NULL, "boardvendor", &boardinfo->vendor, 0,
626 true);
a9bba182
HM		 627 if (!boardinfo->vendor)
628 boardinfo->vendor = SSB_BOARDVENDOR_BCM;
629
b8ebbaff 630 nvram_read_u16(prefix, NULL, "boardtype", &boardinfo->type, 0, true);
a9bba182
HM		 631}
632#endif
0a2fcaa7
HM		 633
634#ifdef CONFIG_BCM47XX_BCMA
635void bcm47xx_fill_bcma_boardinfo(struct bcma_boardinfo *boardinfo,
636 const char *prefix)
637{
b8ebbaff
HM		 638 nvram_read_u16(prefix, NULL, "boardvendor", &boardinfo->vendor, 0,
639 true);
0a2fcaa7
HM		 640 if (!boardinfo->vendor)
641 boardinfo->vendor = SSB_BOARDVENDOR_BCM;
642
b8ebbaff 643 nvram_read_u16(prefix, NULL, "boardtype", &boardinfo->type, 0, true);
0a2fcaa7
HM		 644}
645#endif
a59da8fb
RM		 646
647#if defined(CONFIG_BCM47XX_SSB)
648static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
649{
650 char prefix[10];
651
652 if (bus->bustype == SSB_BUSTYPE_PCI) {
653 memset(out, 0, sizeof(struct ssb_sprom));
654 snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
655 bus->host_pci->bus->number + 1,
656 PCI_SLOT(bus->host_pci->devfn));
657 bcm47xx_fill_sprom(out, prefix, false);
658 return 0;
659 } else {
d548ca6b 660 pr_warn("Unable to fill SPROM for given bustype.\n");
a59da8fb
RM		 661 return -EINVAL;
662 }
663}
664#endif
665
666#if defined(CONFIG_BCM47XX_BCMA)
9a6a2b96
RM		 667/*
668 * Having many NVRAM entries for PCI devices led to repeating prefixes like
669 * pci/1/1/ all the time and wasting flash space. So at some point Broadcom
670 * decided to introduce prefixes like 0: 1: 2: etc.
671 * If we find e.g. devpath0=pci/2/1 or devpath0=pci/2/1/ we should use 0:
672 * instead of pci/2/1/.
673 */
674static void bcm47xx_sprom_apply_prefix_alias(char *prefix, size_t prefix_size)
675{
676 size_t prefix_len = strlen(prefix);
677 size_t short_len = prefix_len - 1;
678 char nvram_var[10];
679 char buf[20];
680 int i;
681
682 /* Passed prefix has to end with a slash */
683 if (prefix_len <= 0 || prefix[prefix_len - 1] != '/')
684 return;
685
686 for (i = 0; i < 3; i++) {
687 if (snprintf(nvram_var, sizeof(nvram_var), "devpath%d", i) <= 0)
688 continue;
689 if (bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf)) < 0)
690 continue;
691 if (!strcmp(buf, prefix) ||
692 (short_len && strlen(buf) == short_len && !strncmp(buf, prefix, short_len))) {
693 snprintf(prefix, prefix_size, "%d:", i);
694 return;
695 }
696 }
697}
698
a59da8fb
RM		 699static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out)
700{
701 char prefix[10];
702 struct bcma_device *core;
703
704 switch (bus->hosttype) {
705 case BCMA_HOSTTYPE_PCI:
706 memset(out, 0, sizeof(struct ssb_sprom));
707 snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
708 bus->host_pci->bus->number + 1,
709 PCI_SLOT(bus->host_pci->devfn));
9a6a2b96 710 bcm47xx_sprom_apply_prefix_alias(prefix, sizeof(prefix));
a59da8fb
RM		 711 bcm47xx_fill_sprom(out, prefix, false);
712 return 0;
713 case BCMA_HOSTTYPE_SOC:
714 memset(out, 0, sizeof(struct ssb_sprom));
715 core = bcma_find_core(bus, BCMA_CORE_80211);
716 if (core) {
717 snprintf(prefix, sizeof(prefix), "sb/%u/",
718 core->core_index);
719 bcm47xx_fill_sprom(out, prefix, true);
720 } else {
721 bcm47xx_fill_sprom(out, NULL, false);
722 }
723 return 0;
724 default:
d548ca6b 725 pr_warn("Unable to fill SPROM for given bustype.\n");
a59da8fb
RM		 726 return -EINVAL;
727 }
728}
729#endif
730
731/*
732 * On bcm47xx we need to register SPROM fallback handler very early, so we can't
733 * use anything like platform device / driver for this.
734 */
735void bcm47xx_sprom_register_fallbacks(void)
736{
737#if defined(CONFIG_BCM47XX_SSB)
738 if (ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom_ssb))
739 pr_warn("Failed to registered ssb SPROM handler\n");
740#endif
741
742#if defined(CONFIG_BCM47XX_BCMA)
743 if (bcma_arch_register_fallback_sprom(&bcm47xx_get_sprom_bcma))
744 pr_warn("Failed to registered bcma SPROM handler\n");
745#endif
746}
Linux 6.x block layer and io_uring tree(s)