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TOMOYO Linux Cross Reference
Linux/arch/mips/bcm47xx/sprom.c

Version: ~ [ linux-5.6-rc1 ] ~ [ linux-5.5.2 ] ~ [ linux-5.4.17 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.102 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.170 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.213 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.213 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.81 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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>
 30 #include <linux/if_ether.h>
 31 #include <linux/etherdevice.h>
 32 
 33 static 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 
 46 static 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 
 54         err = bcm47xx_nvram_getenv(key, buf, len);
 55         if (fallback && err == -ENOENT && prefix) {
 56                 create_key(NULL, postfix, name, key, sizeof(key));
 57                 err = bcm47xx_nvram_getenv(key, buf, len);
 58         }
 59         return err;
 60 }
 61 
 62 #define NVRAM_READ_VAL(type)                                            \
 63 static void nvram_read_ ## type (const char *prefix,                    \
 64                                  const char *postfix, const char *name, \
 65                                  type *val, type allset, bool fallback) \
 66 {                                                                       \
 67         char buf[100];                                                  \
 68         int err;                                                        \
 69         type var;                                                       \
 70                                                                         \
 71         err = get_nvram_var(prefix, postfix, name, buf, sizeof(buf),    \
 72                             fallback);                                  \
 73         if (err < 0)                                                    \
 74                 return;                                                 \
 75         err = kstrto ## type(strim(buf), 0, &var);                      \
 76         if (err) {                                                      \
 77                 pr_warn("can not parse nvram name %s%s%s with value %s got %i\n",       \
 78                         prefix, name, postfix, buf, err);               \
 79                 return;                                                 \
 80         }                                                               \
 81         if (allset && var == allset)                                    \
 82                 return;                                                 \
 83         *val = var;                                                     \
 84 }
 85 
 86 NVRAM_READ_VAL(u8)
 87 NVRAM_READ_VAL(s8)
 88 NVRAM_READ_VAL(u16)
 89 NVRAM_READ_VAL(u32)
 90 
 91 #undef NVRAM_READ_VAL
 92 
 93 static void nvram_read_u32_2(const char *prefix, const char *name,
 94                              u16 *val_lo, u16 *val_hi, bool fallback)
 95 {
 96         char buf[100];
 97         int err;
 98         u32 val;
 99 
100         err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
101         if (err < 0)
102                 return;
103         err = kstrtou32(strim(buf), 0, &val);
104         if (err) {
105                 pr_warn("can not parse nvram name %s%s with value %s got %i\n",
106                         prefix, name, buf, err);
107                 return;
108         }
109         *val_lo = (val & 0x0000FFFFU);
110         *val_hi = (val & 0xFFFF0000U) >> 16;
111 }
112 
113 static void nvram_read_leddc(const char *prefix, const char *name,
114                              u8 *leddc_on_time, u8 *leddc_off_time,
115                              bool fallback)
116 {
117         char buf[100];
118         int err;
119         u32 val;
120 
121         err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
122         if (err < 0)
123                 return;
124         err = kstrtou32(strim(buf), 0, &val);
125         if (err) {
126                 pr_warn("can not parse nvram name %s%s with value %s got %i\n",
127                         prefix, name, buf, err);
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 
138 static 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 
152 static void nvram_read_macaddr(const char *prefix, const char *name,
153                                u8 val[6], bool fallback)
154 {
155         char buf[100];
156         int err;
157 
158         err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
159         if (err < 0)
160                 return;
161 
162         bcm47xx_nvram_parse_macaddr(buf, val);
163 }
164 
165 static void nvram_read_alpha2(const char *prefix, const char *name,
166                              char val[2], bool fallback)
167 {
168         char buf[10];
169         int err;
170 
171         err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
172         if (err < 0)
173                 return;
174         if (buf[0] == '')
175                 return;
176         if (strlen(buf) > 2) {
177                 pr_warn("alpha2 is too long %s\n", buf);
178                 return;
179         }
180         memcpy(val, buf, 2);
181 }
182 
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  */
197 static 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         /* Broadcom extracts it for rev 8+ but it was found on 2 and 4 too */
204         ENTRY(0xfffffffe, u16, pre, "devid", dev_id, 0, fallback);
205 
206         ENTRY(0xfffffffe, u16, pre, "boardrev", board_rev, 0, true);
207         ENTRY(0xfffffffe, u32, pre, "boardflags", boardflags, 0, fb);
208         ENTRY(0xfffffff0, u32, pre, "boardflags2", boardflags2, 0, fb);
209         ENTRY(0xfffff800, u32, pre, "boardflags3", boardflags3, 0, fb);
210         ENTRY(0x00000002, u16, pre, "boardflags", boardflags_lo, 0, fb);
211         ENTRY(0xfffffffc, u16, pre, "boardtype", board_type, 0, true);
212         ENTRY(0xfffffffe, u16, pre, "boardnum", board_num, 0, fb);
213         ENTRY(0x00000002, u8, pre, "cc", country_code, 0, fb);
214         ENTRY(0xfffffff8, u8, pre, "regrev", regrev, 0, fb);
215 
216         ENTRY(0xfffffffe, u8, pre, "ledbh0", gpio0, 0xff, fb);
217         ENTRY(0xfffffffe, u8, pre, "ledbh1", gpio1, 0xff, fb);
218         ENTRY(0xfffffffe, u8, pre, "ledbh2", gpio2, 0xff, fb);
219         ENTRY(0xfffffffe, u8, pre, "ledbh3", gpio3, 0xff, fb);
220 
221         ENTRY(0x0000070e, u16, pre, "pa0b0", pa0b0, 0, fb);
222         ENTRY(0x0000070e, u16, pre, "pa0b1", pa0b1, 0, fb);
223         ENTRY(0x0000070e, u16, pre, "pa0b2", pa0b2, 0, fb);
224         ENTRY(0x0000070e, u8, pre, "pa0itssit", itssi_bg, 0, fb);
225         ENTRY(0x0000070e, u8, pre, "pa0maxpwr", maxpwr_bg, 0, fb);
226 
227         ENTRY(0x0000070c, u8, pre, "opo", opo, 0, fb);
228         ENTRY(0xfffffffe, u8, pre, "aa2g", ant_available_bg, 0, fb);
229         ENTRY(0xfffffffe, u8, pre, "aa5g", ant_available_a, 0, fb);
230         ENTRY(0x000007fe, s8, pre, "ag0", antenna_gain.a0, 0, fb);
231         ENTRY(0x000007fe, s8, pre, "ag1", antenna_gain.a1, 0, fb);
232         ENTRY(0x000007f0, s8, pre, "ag2", antenna_gain.a2, 0, fb);
233         ENTRY(0x000007f0, s8, pre, "ag3", antenna_gain.a3, 0, fb);
234 
235         ENTRY(0x0000070e, u16, pre, "pa1b0", pa1b0, 0, fb);
236         ENTRY(0x0000070e, u16, pre, "pa1b1", pa1b1, 0, fb);
237         ENTRY(0x0000070e, u16, pre, "pa1b2", pa1b2, 0, fb);
238         ENTRY(0x0000070c, u16, pre, "pa1lob0", pa1lob0, 0, fb);
239         ENTRY(0x0000070c, u16, pre, "pa1lob1", pa1lob1, 0, fb);
240         ENTRY(0x0000070c, u16, pre, "pa1lob2", pa1lob2, 0, fb);
241         ENTRY(0x0000070c, u16, pre, "pa1hib0", pa1hib0, 0, fb);
242         ENTRY(0x0000070c, u16, pre, "pa1hib1", pa1hib1, 0, fb);
243         ENTRY(0x0000070c, u16, pre, "pa1hib2", pa1hib2, 0, fb);
244         ENTRY(0x0000070e, u8, pre, "pa1itssit", itssi_a, 0, fb);
245         ENTRY(0x0000070e, u8, pre, "pa1maxpwr", maxpwr_a, 0, fb);
246         ENTRY(0x0000070c, u8, pre, "pa1lomaxpwr", maxpwr_al, 0, fb);
247         ENTRY(0x0000070c, u8, pre, "pa1himaxpwr", maxpwr_ah, 0, fb);
248 
249         ENTRY(0x00000708, u8, pre, "bxa2g", bxa2g, 0, fb);
250         ENTRY(0x00000708, u8, pre, "rssisav2g", rssisav2g, 0, fb);
251         ENTRY(0x00000708, u8, pre, "rssismc2g", rssismc2g, 0, fb);
252         ENTRY(0x00000708, u8, pre, "rssismf2g", rssismf2g, 0, fb);
253         ENTRY(0x00000708, u8, pre, "bxa5g", bxa5g, 0, fb);
254         ENTRY(0x00000708, u8, pre, "rssisav5g", rssisav5g, 0, fb);
255         ENTRY(0x00000708, u8, pre, "rssismc5g", rssismc5g, 0, fb);
256         ENTRY(0x00000708, u8, pre, "rssismf5g", rssismf5g, 0, fb);
257         ENTRY(0x00000708, u8, pre, "tri2g", tri2g, 0, fb);
258         ENTRY(0x00000708, u8, pre, "tri5g", tri5g, 0, fb);
259         ENTRY(0x00000708, u8, pre, "tri5gl", tri5gl, 0, fb);
260         ENTRY(0x00000708, u8, pre, "tri5gh", tri5gh, 0, fb);
261         ENTRY(0x00000708, s8, pre, "rxpo2g", rxpo2g, 0, fb);
262         ENTRY(0x00000708, s8, pre, "rxpo5g", rxpo5g, 0, fb);
263         ENTRY(0xfffffff0, u8, pre, "txchain", txchain, 0xf, fb);
264         ENTRY(0xfffffff0, u8, pre, "rxchain", rxchain, 0xf, fb);
265         ENTRY(0xfffffff0, u8, pre, "antswitch", antswitch, 0xff, fb);
266         ENTRY(0x00000700, u8, pre, "tssipos2g", fem.ghz2.tssipos, 0, fb);
267         ENTRY(0x00000700, u8, pre, "extpagain2g", fem.ghz2.extpa_gain, 0, fb);
268         ENTRY(0x00000700, u8, pre, "pdetrange2g", fem.ghz2.pdet_range, 0, fb);
269         ENTRY(0x00000700, u8, pre, "triso2g", fem.ghz2.tr_iso, 0, fb);
270         ENTRY(0x00000700, u8, pre, "antswctl2g", fem.ghz2.antswlut, 0, fb);
271         ENTRY(0x00000700, u8, pre, "tssipos5g", fem.ghz5.tssipos, 0, fb);
272         ENTRY(0x00000700, u8, pre, "extpagain5g", fem.ghz5.extpa_gain, 0, fb);
273         ENTRY(0x00000700, u8, pre, "pdetrange5g", fem.ghz5.pdet_range, 0, fb);
274         ENTRY(0x00000700, u8, pre, "triso5g", fem.ghz5.tr_iso, 0, fb);
275         ENTRY(0x00000700, u8, pre, "antswctl5g", fem.ghz5.antswlut, 0, fb);
276         ENTRY(0x000000f0, u8, pre, "txpid2ga0", txpid2g[0], 0, fb);
277         ENTRY(0x000000f0, u8, pre, "txpid2ga1", txpid2g[1], 0, fb);
278         ENTRY(0x000000f0, u8, pre, "txpid2ga2", txpid2g[2], 0, fb);
279         ENTRY(0x000000f0, u8, pre, "txpid2ga3", txpid2g[3], 0, fb);
280         ENTRY(0x000000f0, u8, pre, "txpid5ga0", txpid5g[0], 0, fb);
281         ENTRY(0x000000f0, u8, pre, "txpid5ga1", txpid5g[1], 0, fb);
282         ENTRY(0x000000f0, u8, pre, "txpid5ga2", txpid5g[2], 0, fb);
283         ENTRY(0x000000f0, u8, pre, "txpid5ga3", txpid5g[3], 0, fb);
284         ENTRY(0x000000f0, u8, pre, "txpid5gla0", txpid5gl[0], 0, fb);
285         ENTRY(0x000000f0, u8, pre, "txpid5gla1", txpid5gl[1], 0, fb);
286         ENTRY(0x000000f0, u8, pre, "txpid5gla2", txpid5gl[2], 0, fb);
287         ENTRY(0x000000f0, u8, pre, "txpid5gla3", txpid5gl[3], 0, fb);
288         ENTRY(0x000000f0, u8, pre, "txpid5gha0", txpid5gh[0], 0, fb);
289         ENTRY(0x000000f0, u8, pre, "txpid5gha1", txpid5gh[1], 0, fb);
290         ENTRY(0x000000f0, u8, pre, "txpid5gha2", txpid5gh[2], 0, fb);
291         ENTRY(0x000000f0, u8, pre, "txpid5gha3", txpid5gh[3], 0, fb);
292 
293         ENTRY(0xffffff00, u8, pre, "tempthresh", tempthresh, 0, fb);
294         ENTRY(0xffffff00, u8, pre, "tempoffset", tempoffset, 0, fb);
295         ENTRY(0xffffff00, u16, pre, "rawtempsense", rawtempsense, 0, fb);
296         ENTRY(0xffffff00, u8, pre, "measpower", measpower, 0, fb);
297         ENTRY(0xffffff00, u8, pre, "tempsense_slope", tempsense_slope, 0, fb);
298         ENTRY(0xffffff00, u8, pre, "tempcorrx", tempcorrx, 0, fb);
299         ENTRY(0xffffff00, u8, pre, "tempsense_option", tempsense_option, 0, fb);
300         ENTRY(0x00000700, u8, pre, "freqoffset_corr", freqoffset_corr, 0, fb);
301         ENTRY(0x00000700, u8, pre, "iqcal_swp_dis", iqcal_swp_dis, 0, fb);
302         ENTRY(0x00000700, u8, pre, "hw_iqcal_en", hw_iqcal_en, 0, fb);
303         ENTRY(0x00000700, u8, pre, "elna2g", elna2g, 0, fb);
304         ENTRY(0x00000700, u8, pre, "elna5g", elna5g, 0, fb);
305         ENTRY(0xffffff00, u8, pre, "phycal_tempdelta", phycal_tempdelta, 0, fb);
306         ENTRY(0xffffff00, u8, pre, "temps_period", temps_period, 0, fb);
307         ENTRY(0xffffff00, u8, pre, "temps_hysteresis", temps_hysteresis, 0, fb);
308         ENTRY(0xffffff00, u8, pre, "measpower1", measpower1, 0, fb);
309         ENTRY(0xffffff00, u8, pre, "measpower2", measpower2, 0, fb);
310 
311         ENTRY(0x000001f0, u16, pre, "cck2gpo", cck2gpo, 0, fb);
312         ENTRY(0x000001f0, u32, pre, "ofdm2gpo", ofdm2gpo, 0, fb);
313         ENTRY(0x000001f0, u32, pre, "ofdm5gpo", ofdm5gpo, 0, fb);
314         ENTRY(0x000001f0, u32, pre, "ofdm5glpo", ofdm5glpo, 0, fb);
315         ENTRY(0x000001f0, u32, pre, "ofdm5ghpo", ofdm5ghpo, 0, fb);
316         ENTRY(0x000001f0, u16, pre, "mcs2gpo0", mcs2gpo[0], 0, fb);
317         ENTRY(0x000001f0, u16, pre, "mcs2gpo1", mcs2gpo[1], 0, fb);
318         ENTRY(0x000001f0, u16, pre, "mcs2gpo2", mcs2gpo[2], 0, fb);
319         ENTRY(0x000001f0, u16, pre, "mcs2gpo3", mcs2gpo[3], 0, fb);
320         ENTRY(0x000001f0, u16, pre, "mcs2gpo4", mcs2gpo[4], 0, fb);
321         ENTRY(0x000001f0, u16, pre, "mcs2gpo5", mcs2gpo[5], 0, fb);
322         ENTRY(0x000001f0, u16, pre, "mcs2gpo6", mcs2gpo[6], 0, fb);
323         ENTRY(0x000001f0, u16, pre, "mcs2gpo7", mcs2gpo[7], 0, fb);
324         ENTRY(0x000001f0, u16, pre, "mcs5gpo0", mcs5gpo[0], 0, fb);
325         ENTRY(0x000001f0, u16, pre, "mcs5gpo1", mcs5gpo[1], 0, fb);
326         ENTRY(0x000001f0, u16, pre, "mcs5gpo2", mcs5gpo[2], 0, fb);
327         ENTRY(0x000001f0, u16, pre, "mcs5gpo3", mcs5gpo[3], 0, fb);
328         ENTRY(0x000001f0, u16, pre, "mcs5gpo4", mcs5gpo[4], 0, fb);
329         ENTRY(0x000001f0, u16, pre, "mcs5gpo5", mcs5gpo[5], 0, fb);
330         ENTRY(0x000001f0, u16, pre, "mcs5gpo6", mcs5gpo[6], 0, fb);
331         ENTRY(0x000001f0, u16, pre, "mcs5gpo7", mcs5gpo[7], 0, fb);
332         ENTRY(0x000001f0, u16, pre, "mcs5glpo0", mcs5glpo[0], 0, fb);
333         ENTRY(0x000001f0, u16, pre, "mcs5glpo1", mcs5glpo[1], 0, fb);
334         ENTRY(0x000001f0, u16, pre, "mcs5glpo2", mcs5glpo[2], 0, fb);
335         ENTRY(0x000001f0, u16, pre, "mcs5glpo3", mcs5glpo[3], 0, fb);
336         ENTRY(0x000001f0, u16, pre, "mcs5glpo4", mcs5glpo[4], 0, fb);
337         ENTRY(0x000001f0, u16, pre, "mcs5glpo5", mcs5glpo[5], 0, fb);
338         ENTRY(0x000001f0, u16, pre, "mcs5glpo6", mcs5glpo[6], 0, fb);
339         ENTRY(0x000001f0, u16, pre, "mcs5glpo7", mcs5glpo[7], 0, fb);
340         ENTRY(0x000001f0, u16, pre, "mcs5ghpo0", mcs5ghpo[0], 0, fb);
341         ENTRY(0x000001f0, u16, pre, "mcs5ghpo1", mcs5ghpo[1], 0, fb);
342         ENTRY(0x000001f0, u16, pre, "mcs5ghpo2", mcs5ghpo[2], 0, fb);
343         ENTRY(0x000001f0, u16, pre, "mcs5ghpo3", mcs5ghpo[3], 0, fb);
344         ENTRY(0x000001f0, u16, pre, "mcs5ghpo4", mcs5ghpo[4], 0, fb);
345         ENTRY(0x000001f0, u16, pre, "mcs5ghpo5", mcs5ghpo[5], 0, fb);
346         ENTRY(0x000001f0, u16, pre, "mcs5ghpo6", mcs5ghpo[6], 0, fb);
347         ENTRY(0x000001f0, u16, pre, "mcs5ghpo7", mcs5ghpo[7], 0, fb);
348         ENTRY(0x000001f0, u16, pre, "cddpo", cddpo, 0, fb);
349         ENTRY(0x000001f0, u16, pre, "stbcpo", stbcpo, 0, fb);
350         ENTRY(0x000001f0, u16, pre, "bw40po", bw40po, 0, fb);
351         ENTRY(0x000001f0, u16, pre, "bwduppo", bwduppo, 0, fb);
352 
353         ENTRY(0xfffffe00, u16, pre, "cckbw202gpo", cckbw202gpo, 0, fb);
354         ENTRY(0xfffffe00, u16, pre, "cckbw20ul2gpo", cckbw20ul2gpo, 0, fb);
355         ENTRY(0x00000600, u32, pre, "legofdmbw202gpo", legofdmbw202gpo, 0, fb);
356         ENTRY(0x00000600, u32, pre, "legofdmbw20ul2gpo", legofdmbw20ul2gpo, 0, fb);
357         ENTRY(0x00000600, u32, pre, "legofdmbw205glpo", legofdmbw205glpo, 0, fb);
358         ENTRY(0x00000600, u32, pre, "legofdmbw20ul5glpo", legofdmbw20ul5glpo, 0, fb);
359         ENTRY(0x00000600, u32, pre, "legofdmbw205gmpo", legofdmbw205gmpo, 0, fb);
360         ENTRY(0x00000600, u32, pre, "legofdmbw20ul5gmpo", legofdmbw20ul5gmpo, 0, fb);
361         ENTRY(0x00000600, u32, pre, "legofdmbw205ghpo", legofdmbw205ghpo, 0, fb);
362         ENTRY(0x00000600, u32, pre, "legofdmbw20ul5ghpo", legofdmbw20ul5ghpo, 0, fb);
363         ENTRY(0xfffffe00, u32, pre, "mcsbw202gpo", mcsbw202gpo, 0, fb);
364         ENTRY(0x00000600, u32, pre, "mcsbw20ul2gpo", mcsbw20ul2gpo, 0, fb);
365         ENTRY(0xfffffe00, u32, pre, "mcsbw402gpo", mcsbw402gpo, 0, fb);
366         ENTRY(0xfffffe00, u32, pre, "mcsbw205glpo", mcsbw205glpo, 0, fb);
367         ENTRY(0x00000600, u32, pre, "mcsbw20ul5glpo", mcsbw20ul5glpo, 0, fb);
368         ENTRY(0xfffffe00, u32, pre, "mcsbw405glpo", mcsbw405glpo, 0, fb);
369         ENTRY(0xfffffe00, u32, pre, "mcsbw205gmpo", mcsbw205gmpo, 0, fb);
370         ENTRY(0x00000600, u32, pre, "mcsbw20ul5gmpo", mcsbw20ul5gmpo, 0, fb);
371         ENTRY(0xfffffe00, u32, pre, "mcsbw405gmpo", mcsbw405gmpo, 0, fb);
372         ENTRY(0xfffffe00, u32, pre, "mcsbw205ghpo", mcsbw205ghpo, 0, fb);
373         ENTRY(0x00000600, u32, pre, "mcsbw20ul5ghpo", mcsbw20ul5ghpo, 0, fb);
374         ENTRY(0xfffffe00, u32, pre, "mcsbw405ghpo", mcsbw405ghpo, 0, fb);
375         ENTRY(0x00000600, u16, pre, "mcs32po", mcs32po, 0, fb);
376         ENTRY(0x00000600, u16, pre, "legofdm40duppo", legofdm40duppo, 0, fb);
377         ENTRY(0x00000700, u8, pre, "pcieingress_war", pcieingress_war, 0, fb);
378 
379         /* TODO: rev 11 support */
380         ENTRY(0x00000700, u8, pre, "rxgainerr2ga0", rxgainerr2ga[0], 0, fb);
381         ENTRY(0x00000700, u8, pre, "rxgainerr2ga1", rxgainerr2ga[1], 0, fb);
382         ENTRY(0x00000700, u8, pre, "rxgainerr2ga2", rxgainerr2ga[2], 0, fb);
383         ENTRY(0x00000700, u8, pre, "rxgainerr5gla0", rxgainerr5gla[0], 0, fb);
384         ENTRY(0x00000700, u8, pre, "rxgainerr5gla1", rxgainerr5gla[1], 0, fb);
385         ENTRY(0x00000700, u8, pre, "rxgainerr5gla2", rxgainerr5gla[2], 0, fb);
386         ENTRY(0x00000700, u8, pre, "rxgainerr5gma0", rxgainerr5gma[0], 0, fb);
387         ENTRY(0x00000700, u8, pre, "rxgainerr5gma1", rxgainerr5gma[1], 0, fb);
388         ENTRY(0x00000700, u8, pre, "rxgainerr5gma2", rxgainerr5gma[2], 0, fb);
389         ENTRY(0x00000700, u8, pre, "rxgainerr5gha0", rxgainerr5gha[0], 0, fb);
390         ENTRY(0x00000700, u8, pre, "rxgainerr5gha1", rxgainerr5gha[1], 0, fb);
391         ENTRY(0x00000700, u8, pre, "rxgainerr5gha2", rxgainerr5gha[2], 0, fb);
392         ENTRY(0x00000700, u8, pre, "rxgainerr5gua0", rxgainerr5gua[0], 0, fb);
393         ENTRY(0x00000700, u8, pre, "rxgainerr5gua1", rxgainerr5gua[1], 0, fb);
394         ENTRY(0x00000700, u8, pre, "rxgainerr5gua2", rxgainerr5gua[2], 0, fb);
395 
396         ENTRY(0xfffffe00, u8, pre, "sar2g", sar2g, 0, fb);
397         ENTRY(0xfffffe00, u8, pre, "sar5g", sar5g, 0, fb);
398 
399         /* TODO: rev 11 support */
400         ENTRY(0x00000700, u8, pre, "noiselvl2ga0", noiselvl2ga[0], 0, fb);
401         ENTRY(0x00000700, u8, pre, "noiselvl2ga1", noiselvl2ga[1], 0, fb);
402         ENTRY(0x00000700, u8, pre, "noiselvl2ga2", noiselvl2ga[2], 0, fb);
403         ENTRY(0x00000700, u8, pre, "noiselvl5gla0", noiselvl5gla[0], 0, fb);
404         ENTRY(0x00000700, u8, pre, "noiselvl5gla1", noiselvl5gla[1], 0, fb);
405         ENTRY(0x00000700, u8, pre, "noiselvl5gla2", noiselvl5gla[2], 0, fb);
406         ENTRY(0x00000700, u8, pre, "noiselvl5gma0", noiselvl5gma[0], 0, fb);
407         ENTRY(0x00000700, u8, pre, "noiselvl5gma1", noiselvl5gma[1], 0, fb);
408         ENTRY(0x00000700, u8, pre, "noiselvl5gma2", noiselvl5gma[2], 0, fb);
409         ENTRY(0x00000700, u8, pre, "noiselvl5gha0", noiselvl5gha[0], 0, fb);
410         ENTRY(0x00000700, u8, pre, "noiselvl5gha1", noiselvl5gha[1], 0, fb);
411         ENTRY(0x00000700, u8, pre, "noiselvl5gha2", noiselvl5gha[2], 0, fb);
412         ENTRY(0x00000700, u8, pre, "noiselvl5gua0", noiselvl5gua[0], 0, fb);
413         ENTRY(0x00000700, u8, pre, "noiselvl5gua1", noiselvl5gua[1], 0, fb);
414         ENTRY(0x00000700, u8, pre, "noiselvl5gua2", noiselvl5gua[2], 0, fb);
415 }
416 #undef ENTRY /* It's specififc, uses local variable, don't use it (again). */
417 
418 static void bcm47xx_fill_sprom_path_r4589(struct ssb_sprom *sprom,
419                                           const char *prefix, bool fallback)
420 {
421         char postfix[2];
422         int i;
423 
424         for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
425                 struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
426                 snprintf(postfix, sizeof(postfix), "%i", i);
427                 nvram_read_u8(prefix, postfix, "maxp2ga",
428                               &pwr_info->maxpwr_2g, 0, fallback);
429                 nvram_read_u8(prefix, postfix, "itt2ga",
430                               &pwr_info->itssi_2g, 0, fallback);
431                 nvram_read_u8(prefix, postfix, "itt5ga",
432                               &pwr_info->itssi_5g, 0, fallback);
433                 nvram_read_u16(prefix, postfix, "pa2gw0a",
434                                &pwr_info->pa_2g[0], 0, fallback);
435                 nvram_read_u16(prefix, postfix, "pa2gw1a",
436                                &pwr_info->pa_2g[1], 0, fallback);
437                 nvram_read_u16(prefix, postfix, "pa2gw2a",
438                                &pwr_info->pa_2g[2], 0, fallback);
439                 nvram_read_u8(prefix, postfix, "maxp5ga",
440                               &pwr_info->maxpwr_5g, 0, fallback);
441                 nvram_read_u8(prefix, postfix, "maxp5gha",
442                               &pwr_info->maxpwr_5gh, 0, fallback);
443                 nvram_read_u8(prefix, postfix, "maxp5gla",
444                               &pwr_info->maxpwr_5gl, 0, fallback);
445                 nvram_read_u16(prefix, postfix, "pa5gw0a",
446                                &pwr_info->pa_5g[0], 0, fallback);
447                 nvram_read_u16(prefix, postfix, "pa5gw1a",
448                                &pwr_info->pa_5g[1], 0, fallback);
449                 nvram_read_u16(prefix, postfix, "pa5gw2a",
450                                &pwr_info->pa_5g[2], 0, fallback);
451                 nvram_read_u16(prefix, postfix, "pa5glw0a",
452                                &pwr_info->pa_5gl[0], 0, fallback);
453                 nvram_read_u16(prefix, postfix, "pa5glw1a",
454                                &pwr_info->pa_5gl[1], 0, fallback);
455                 nvram_read_u16(prefix, postfix, "pa5glw2a",
456                                &pwr_info->pa_5gl[2], 0, fallback);
457                 nvram_read_u16(prefix, postfix, "pa5ghw0a",
458                                &pwr_info->pa_5gh[0], 0, fallback);
459                 nvram_read_u16(prefix, postfix, "pa5ghw1a",
460                                &pwr_info->pa_5gh[1], 0, fallback);
461                 nvram_read_u16(prefix, postfix, "pa5ghw2a",
462                                &pwr_info->pa_5gh[2], 0, fallback);
463         }
464 }
465 
466 static void bcm47xx_fill_sprom_path_r45(struct ssb_sprom *sprom,
467                                         const char *prefix, bool fallback)
468 {
469         char postfix[2];
470         int i;
471 
472         for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
473                 struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
474                 snprintf(postfix, sizeof(postfix), "%i", i);
475                 nvram_read_u16(prefix, postfix, "pa2gw3a",
476                                &pwr_info->pa_2g[3], 0, fallback);
477                 nvram_read_u16(prefix, postfix, "pa5gw3a",
478                                &pwr_info->pa_5g[3], 0, fallback);
479                 nvram_read_u16(prefix, postfix, "pa5glw3a",
480                                &pwr_info->pa_5gl[3], 0, fallback);
481                 nvram_read_u16(prefix, postfix, "pa5ghw3a",
482                                &pwr_info->pa_5gh[3], 0, fallback);
483         }
484 }
485 
486 static bool bcm47xx_is_valid_mac(u8 *mac)
487 {
488         return mac && !(mac[0] == 0x00 && mac[1] == 0x90 && mac[2] == 0x4c);
489 }
490 
491 static int bcm47xx_increase_mac_addr(u8 *mac, u8 num)
492 {
493         u8 *oui = mac + ETH_ALEN/2 - 1;
494         u8 *p = mac + ETH_ALEN - 1;
495 
496         do {
497                 (*p) += num;
498                 if (*p > num)
499                         break;
500                 p--;
501                 num = 1;
502         } while (p != oui);
503 
504         if (p == oui) {
505                 pr_err("unable to fetch mac address\n");
506                 return -ENOENT;
507         }
508         return 0;
509 }
510 
511 static int mac_addr_used = 2;
512 
513 static void bcm47xx_fill_sprom_ethernet(struct ssb_sprom *sprom,
514                                         const char *prefix, bool fallback)
515 {
516         bool fb = fallback;
517 
518         nvram_read_macaddr(prefix, "et0macaddr", sprom->et0mac, fallback);
519         nvram_read_u8(prefix, NULL, "et0mdcport", &sprom->et0mdcport, 0,
520                       fallback);
521         nvram_read_u8(prefix, NULL, "et0phyaddr", &sprom->et0phyaddr, 0,
522                       fallback);
523 
524         nvram_read_macaddr(prefix, "et1macaddr", sprom->et1mac, fallback);
525         nvram_read_u8(prefix, NULL, "et1mdcport", &sprom->et1mdcport, 0,
526                       fallback);
527         nvram_read_u8(prefix, NULL, "et1phyaddr", &sprom->et1phyaddr, 0,
528                       fallback);
529 
530         nvram_read_macaddr(prefix, "et2macaddr", sprom->et2mac, fb);
531         nvram_read_u8(prefix, NULL, "et2mdcport", &sprom->et2mdcport, 0, fb);
532         nvram_read_u8(prefix, NULL, "et2phyaddr", &sprom->et2phyaddr, 0, fb);
533 
534         nvram_read_macaddr(prefix, "macaddr", sprom->il0mac, fallback);
535         nvram_read_macaddr(prefix, "il0macaddr", sprom->il0mac, fallback);
536 
537         /* The address prefix 00:90:4C is used by Broadcom in their initial
538            configuration. When a mac address with the prefix 00:90:4C is used
539            all devices from the same series are sharing the same mac address.
540            To prevent mac address collisions we replace them with a mac address
541            based on the base address. */
542         if (!bcm47xx_is_valid_mac(sprom->il0mac)) {
543                 u8 mac[6];
544 
545                 nvram_read_macaddr(NULL, "et0macaddr", mac, false);
546                 if (bcm47xx_is_valid_mac(mac)) {
547                         int err = bcm47xx_increase_mac_addr(mac, mac_addr_used);
548 
549                         if (!err) {
550                                 ether_addr_copy(sprom->il0mac, mac);
551                                 mac_addr_used++;
552                         }
553                 }
554         }
555 }
556 
557 static void bcm47xx_fill_board_data(struct ssb_sprom *sprom, const char *prefix,
558                                     bool fallback)
559 {
560         nvram_read_u32_2(prefix, "boardflags", &sprom->boardflags_lo,
561                          &sprom->boardflags_hi, fallback);
562         nvram_read_u32_2(prefix, "boardflags2", &sprom->boardflags2_lo,
563                          &sprom->boardflags2_hi, fallback);
564 }
565 
566 void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix,
567                         bool fallback)
568 {
569         bcm47xx_fill_sprom_ethernet(sprom, prefix, fallback);
570         bcm47xx_fill_board_data(sprom, prefix, fallback);
571 
572         nvram_read_u8(prefix, NULL, "sromrev", &sprom->revision, 0, fallback);
573 
574         /* Entries requiring custom functions */
575         nvram_read_alpha2(prefix, "ccode", sprom->alpha2, fallback);
576         if (sprom->revision >= 3)
577                 nvram_read_leddc(prefix, "leddc", &sprom->leddc_on_time,
578                                  &sprom->leddc_off_time, fallback);
579 
580         switch (sprom->revision) {
581         case 4:
582         case 5:
583                 bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
584                 bcm47xx_fill_sprom_path_r45(sprom, prefix, fallback);
585                 break;
586         case 8:
587         case 9:
588                 bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
589                 break;
590         }
591 
592         bcm47xx_sprom_fill_auto(sprom, prefix, fallback);
593 }
594 
595 #ifdef CONFIG_BCM47XX_SSB
596 void bcm47xx_fill_ssb_boardinfo(struct ssb_boardinfo *boardinfo,
597                                 const char *prefix)
598 {
599         nvram_read_u16(prefix, NULL, "boardvendor", &boardinfo->vendor, 0,
600                        true);
601         if (!boardinfo->vendor)
602                 boardinfo->vendor = SSB_BOARDVENDOR_BCM;
603 
604         nvram_read_u16(prefix, NULL, "boardtype", &boardinfo->type, 0, true);
605 }
606 #endif
607 
608 #if defined(CONFIG_BCM47XX_SSB)
609 static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
610 {
611         char prefix[10];
612 
613         if (bus->bustype == SSB_BUSTYPE_PCI) {
614                 memset(out, 0, sizeof(struct ssb_sprom));
615                 snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
616                          bus->host_pci->bus->number + 1,
617                          PCI_SLOT(bus->host_pci->devfn));
618                 bcm47xx_fill_sprom(out, prefix, false);
619                 return 0;
620         } else {
621                 pr_warn("Unable to fill SPROM for given bustype.\n");
622                 return -EINVAL;
623         }
624 }
625 #endif
626 
627 #if defined(CONFIG_BCM47XX_BCMA)
628 /*
629  * Having many NVRAM entries for PCI devices led to repeating prefixes like
630  * pci/1/1/ all the time and wasting flash space. So at some point Broadcom
631  * decided to introduce prefixes like 0: 1: 2: etc.
632  * If we find e.g. devpath0=pci/2/1 or devpath0=pci/2/1/ we should use 0:
633  * instead of pci/2/1/.
634  */
635 static void bcm47xx_sprom_apply_prefix_alias(char *prefix, size_t prefix_size)
636 {
637         size_t prefix_len = strlen(prefix);
638         size_t short_len = prefix_len - 1;
639         char nvram_var[10];
640         char buf[20];
641         int i;
642 
643         /* Passed prefix has to end with a slash */
644         if (prefix_len <= 0 || prefix[prefix_len - 1] != '/')
645                 return;
646 
647         for (i = 0; i < 3; i++) {
648                 if (snprintf(nvram_var, sizeof(nvram_var), "devpath%d", i) <= 0)
649                         continue;
650                 if (bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf)) < 0)
651                         continue;
652                 if (!strcmp(buf, prefix) ||
653                     (short_len && strlen(buf) == short_len && !strncmp(buf, prefix, short_len))) {
654                         snprintf(prefix, prefix_size, "%d:", i);
655                         return;
656                 }
657         }
658 }
659 
660 static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out)
661 {
662         struct bcma_boardinfo *binfo = &bus->boardinfo;
663         struct bcma_device *core;
664         char buf[10];
665         char *prefix;
666         bool fallback = false;
667 
668         switch (bus->hosttype) {
669         case BCMA_HOSTTYPE_PCI:
670                 memset(out, 0, sizeof(struct ssb_sprom));
671                 snprintf(buf, sizeof(buf), "pci/%u/%u/",
672                          bus->host_pci->bus->number + 1,
673                          PCI_SLOT(bus->host_pci->devfn));
674                 bcm47xx_sprom_apply_prefix_alias(buf, sizeof(buf));
675                 prefix = buf;
676                 break;
677         case BCMA_HOSTTYPE_SOC:
678                 memset(out, 0, sizeof(struct ssb_sprom));
679                 core = bcma_find_core(bus, BCMA_CORE_80211);
680                 if (core) {
681                         snprintf(buf, sizeof(buf), "sb/%u/",
682                                  core->core_index);
683                         prefix = buf;
684                         fallback = true;
685                 } else {
686                         prefix = NULL;
687                 }
688                 break;
689         default:
690                 pr_warn("Unable to fill SPROM for given bustype.\n");
691                 return -EINVAL;
692         }
693 
694         nvram_read_u16(prefix, NULL, "boardvendor", &binfo->vendor, 0, true);
695         if (!binfo->vendor)
696                 binfo->vendor = SSB_BOARDVENDOR_BCM;
697         nvram_read_u16(prefix, NULL, "boardtype", &binfo->type, 0, true);
698 
699         bcm47xx_fill_sprom(out, prefix, fallback);
700 
701         return 0;
702 }
703 #endif
704 
705 /*
706  * On bcm47xx we need to register SPROM fallback handler very early, so we can't
707  * use anything like platform device / driver for this.
708  */
709 void bcm47xx_sprom_register_fallbacks(void)
710 {
711 #if defined(CONFIG_BCM47XX_SSB)
712         if (ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom_ssb))
713                 pr_warn("Failed to registered ssb SPROM handler\n");
714 #endif
715 
716 #if defined(CONFIG_BCM47XX_BCMA)
717         if (bcma_arch_register_fallback_sprom(&bcm47xx_get_sprom_bcma))
718                 pr_warn("Failed to registered bcma SPROM handler\n");
719 #endif
720 }
721 

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