1 | /* |
2 | * Broadcom specific AMBA |
3 | * SPROM reading |
4 | * |
5 | * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de> |
6 | * |
7 | * Licensed under the GNU/GPL. See COPYING for details. |
8 | */ |
9 | |
10 | #include "bcma_private.h" |
11 | |
12 | #include <linux/bcma/bcma.h> |
13 | #include <linux/bcma/bcma_regs.h> |
14 | #include <linux/pci.h> |
15 | #include <linux/io.h> |
16 | #include <linux/dma-mapping.h> |
17 | #include <linux/slab.h> |
18 | |
19 | static int(*get_fallback_sprom)(struct bcma_bus *dev, struct ssb_sprom *out); |
20 | |
21 | /** |
22 | * bcma_arch_register_fallback_sprom - Registers a method providing a |
23 | * fallback SPROM if no SPROM is found. |
24 | * |
25 | * @sprom_callback: The callback function. |
26 | * |
27 | * With this function the architecture implementation may register a |
28 | * callback handler which fills the SPROM data structure. The fallback is |
29 | * used for PCI based BCMA devices, where no valid SPROM can be found |
30 | * in the shadow registers and to provide the SPROM for SoCs where BCMA is |
31 | * to control the system bus. |
32 | * |
33 | * This function is useful for weird architectures that have a half-assed |
34 | * BCMA device hardwired to their PCI bus. |
35 | * |
36 | * This function is available for architecture code, only. So it is not |
37 | * exported. |
38 | */ |
39 | int bcma_arch_register_fallback_sprom(int (*sprom_callback)(struct bcma_bus *bus, |
40 | struct ssb_sprom *out)) |
41 | { |
42 | if (get_fallback_sprom) |
43 | return -EEXIST; |
44 | get_fallback_sprom = sprom_callback; |
45 | |
46 | return 0; |
47 | } |
48 | |
49 | static int bcma_fill_sprom_with_fallback(struct bcma_bus *bus, |
50 | struct ssb_sprom *out) |
51 | { |
52 | int err; |
53 | |
54 | if (!get_fallback_sprom) { |
55 | err = -ENOENT; |
56 | goto fail; |
57 | } |
58 | |
59 | err = get_fallback_sprom(bus, out); |
60 | if (err) |
61 | goto fail; |
62 | |
63 | bcma_debug(bus, "Using SPROM revision %d provided by platform.\n" , |
64 | bus->sprom.revision); |
65 | return 0; |
66 | fail: |
67 | bcma_warn(bus, "Using fallback SPROM failed (err %d)\n" , err); |
68 | return err; |
69 | } |
70 | |
71 | /************************************************** |
72 | * R/W ops. |
73 | **************************************************/ |
74 | |
75 | static void bcma_sprom_read(struct bcma_bus *bus, u16 offset, u16 *sprom, |
76 | size_t words) |
77 | { |
78 | int i; |
79 | for (i = 0; i < words; i++) |
80 | sprom[i] = bcma_read16(core: bus->drv_cc.core, offset: offset + (i * 2)); |
81 | } |
82 | |
83 | /************************************************** |
84 | * Validation. |
85 | **************************************************/ |
86 | |
87 | static inline u8 bcma_crc8(u8 crc, u8 data) |
88 | { |
89 | /* Polynomial: x^8 + x^7 + x^6 + x^4 + x^2 + 1 */ |
90 | static const u8 t[] = { |
91 | 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B, |
92 | 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21, |
93 | 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF, |
94 | 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5, |
95 | 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14, |
96 | 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E, |
97 | 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80, |
98 | 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA, |
99 | 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95, |
100 | 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF, |
101 | 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01, |
102 | 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B, |
103 | 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA, |
104 | 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0, |
105 | 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E, |
106 | 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34, |
107 | 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0, |
108 | 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A, |
109 | 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54, |
110 | 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E, |
111 | 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF, |
112 | 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5, |
113 | 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B, |
114 | 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61, |
115 | 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E, |
116 | 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74, |
117 | 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA, |
118 | 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0, |
119 | 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41, |
120 | 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B, |
121 | 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5, |
122 | 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F, |
123 | }; |
124 | return t[crc ^ data]; |
125 | } |
126 | |
127 | static u8 bcma_sprom_crc(const u16 *sprom, size_t words) |
128 | { |
129 | int word; |
130 | u8 crc = 0xFF; |
131 | |
132 | for (word = 0; word < words - 1; word++) { |
133 | crc = bcma_crc8(crc, data: sprom[word] & 0x00FF); |
134 | crc = bcma_crc8(crc, data: (sprom[word] & 0xFF00) >> 8); |
135 | } |
136 | crc = bcma_crc8(crc, data: sprom[words - 1] & 0x00FF); |
137 | crc ^= 0xFF; |
138 | |
139 | return crc; |
140 | } |
141 | |
142 | static int bcma_sprom_check_crc(const u16 *sprom, size_t words) |
143 | { |
144 | u8 crc; |
145 | u8 expected_crc; |
146 | u16 tmp; |
147 | |
148 | crc = bcma_sprom_crc(sprom, words); |
149 | tmp = sprom[words - 1] & SSB_SPROM_REVISION_CRC; |
150 | expected_crc = tmp >> SSB_SPROM_REVISION_CRC_SHIFT; |
151 | if (crc != expected_crc) |
152 | return -EPROTO; |
153 | |
154 | return 0; |
155 | } |
156 | |
157 | static int bcma_sprom_valid(struct bcma_bus *bus, const u16 *sprom, |
158 | size_t words) |
159 | { |
160 | u16 revision; |
161 | int err; |
162 | |
163 | err = bcma_sprom_check_crc(sprom, words); |
164 | if (err) |
165 | return err; |
166 | |
167 | revision = sprom[words - 1] & SSB_SPROM_REVISION_REV; |
168 | if (revision < 8 || revision > 11) { |
169 | pr_err("Unsupported SPROM revision: %d\n" , revision); |
170 | return -ENOENT; |
171 | } |
172 | |
173 | bus->sprom.revision = revision; |
174 | bcma_debug(bus, "Found SPROM revision %d\n" , revision); |
175 | |
176 | return 0; |
177 | } |
178 | |
179 | /************************************************** |
180 | * SPROM extraction. |
181 | **************************************************/ |
182 | |
183 | #define SPOFF(offset) ((offset) / sizeof(u16)) |
184 | |
185 | #define SPEX(_field, _offset, _mask, _shift) \ |
186 | bus->sprom._field = ((sprom[SPOFF(_offset)] & (_mask)) >> (_shift)) |
187 | |
188 | #define SPEX32(_field, _offset, _mask, _shift) \ |
189 | bus->sprom._field = ((((u32)sprom[SPOFF((_offset)+2)] << 16 | \ |
190 | sprom[SPOFF(_offset)]) & (_mask)) >> (_shift)) |
191 | |
192 | #define SPEX_ARRAY8(_field, _offset, _mask, _shift) \ |
193 | do { \ |
194 | SPEX(_field[0], _offset + 0, _mask, _shift); \ |
195 | SPEX(_field[1], _offset + 2, _mask, _shift); \ |
196 | SPEX(_field[2], _offset + 4, _mask, _shift); \ |
197 | SPEX(_field[3], _offset + 6, _mask, _shift); \ |
198 | SPEX(_field[4], _offset + 8, _mask, _shift); \ |
199 | SPEX(_field[5], _offset + 10, _mask, _shift); \ |
200 | SPEX(_field[6], _offset + 12, _mask, _shift); \ |
201 | SPEX(_field[7], _offset + 14, _mask, _shift); \ |
202 | } while (0) |
203 | |
204 | static s8 (const u16 *in, u16 offset, u16 mask, u16 shift) |
205 | { |
206 | u16 v; |
207 | u8 gain; |
208 | |
209 | v = in[SPOFF(offset)]; |
210 | gain = (v & mask) >> shift; |
211 | if (gain == 0xFF) { |
212 | gain = 8; /* If unset use 2dBm */ |
213 | } else { |
214 | /* Q5.2 Fractional part is stored in 0xC0 */ |
215 | gain = ((gain & 0xC0) >> 6) | ((gain & 0x3F) << 2); |
216 | } |
217 | |
218 | return (s8)gain; |
219 | } |
220 | |
221 | static void (struct bcma_bus *bus, const u16 *sprom) |
222 | { |
223 | u16 v, o; |
224 | int i; |
225 | static const u16 pwr_info_offset[] = { |
226 | SSB_SROM8_PWR_INFO_CORE0, SSB_SROM8_PWR_INFO_CORE1, |
227 | SSB_SROM8_PWR_INFO_CORE2, SSB_SROM8_PWR_INFO_CORE3 |
228 | }; |
229 | BUILD_BUG_ON(ARRAY_SIZE(pwr_info_offset) != |
230 | ARRAY_SIZE(bus->sprom.core_pwr_info)); |
231 | |
232 | for (i = 0; i < 3; i++) { |
233 | v = sprom[SPOFF(SSB_SPROM8_IL0MAC) + i]; |
234 | *(((__be16 *)bus->sprom.il0mac) + i) = cpu_to_be16(v); |
235 | } |
236 | |
237 | SPEX(board_rev, SSB_SPROM8_BOARDREV, ~0, 0); |
238 | SPEX(board_type, SSB_SPROM1_SPID, ~0, 0); |
239 | |
240 | SPEX(txpid2g[0], SSB_SPROM4_TXPID2G01, SSB_SPROM4_TXPID2G0, |
241 | SSB_SPROM4_TXPID2G0_SHIFT); |
242 | SPEX(txpid2g[1], SSB_SPROM4_TXPID2G01, SSB_SPROM4_TXPID2G1, |
243 | SSB_SPROM4_TXPID2G1_SHIFT); |
244 | SPEX(txpid2g[2], SSB_SPROM4_TXPID2G23, SSB_SPROM4_TXPID2G2, |
245 | SSB_SPROM4_TXPID2G2_SHIFT); |
246 | SPEX(txpid2g[3], SSB_SPROM4_TXPID2G23, SSB_SPROM4_TXPID2G3, |
247 | SSB_SPROM4_TXPID2G3_SHIFT); |
248 | |
249 | SPEX(txpid5gl[0], SSB_SPROM4_TXPID5GL01, SSB_SPROM4_TXPID5GL0, |
250 | SSB_SPROM4_TXPID5GL0_SHIFT); |
251 | SPEX(txpid5gl[1], SSB_SPROM4_TXPID5GL01, SSB_SPROM4_TXPID5GL1, |
252 | SSB_SPROM4_TXPID5GL1_SHIFT); |
253 | SPEX(txpid5gl[2], SSB_SPROM4_TXPID5GL23, SSB_SPROM4_TXPID5GL2, |
254 | SSB_SPROM4_TXPID5GL2_SHIFT); |
255 | SPEX(txpid5gl[3], SSB_SPROM4_TXPID5GL23, SSB_SPROM4_TXPID5GL3, |
256 | SSB_SPROM4_TXPID5GL3_SHIFT); |
257 | |
258 | SPEX(txpid5g[0], SSB_SPROM4_TXPID5G01, SSB_SPROM4_TXPID5G0, |
259 | SSB_SPROM4_TXPID5G0_SHIFT); |
260 | SPEX(txpid5g[1], SSB_SPROM4_TXPID5G01, SSB_SPROM4_TXPID5G1, |
261 | SSB_SPROM4_TXPID5G1_SHIFT); |
262 | SPEX(txpid5g[2], SSB_SPROM4_TXPID5G23, SSB_SPROM4_TXPID5G2, |
263 | SSB_SPROM4_TXPID5G2_SHIFT); |
264 | SPEX(txpid5g[3], SSB_SPROM4_TXPID5G23, SSB_SPROM4_TXPID5G3, |
265 | SSB_SPROM4_TXPID5G3_SHIFT); |
266 | |
267 | SPEX(txpid5gh[0], SSB_SPROM4_TXPID5GH01, SSB_SPROM4_TXPID5GH0, |
268 | SSB_SPROM4_TXPID5GH0_SHIFT); |
269 | SPEX(txpid5gh[1], SSB_SPROM4_TXPID5GH01, SSB_SPROM4_TXPID5GH1, |
270 | SSB_SPROM4_TXPID5GH1_SHIFT); |
271 | SPEX(txpid5gh[2], SSB_SPROM4_TXPID5GH23, SSB_SPROM4_TXPID5GH2, |
272 | SSB_SPROM4_TXPID5GH2_SHIFT); |
273 | SPEX(txpid5gh[3], SSB_SPROM4_TXPID5GH23, SSB_SPROM4_TXPID5GH3, |
274 | SSB_SPROM4_TXPID5GH3_SHIFT); |
275 | |
276 | SPEX(boardflags_lo, SSB_SPROM8_BFLLO, ~0, 0); |
277 | SPEX(boardflags_hi, SSB_SPROM8_BFLHI, ~0, 0); |
278 | SPEX(boardflags2_lo, SSB_SPROM8_BFL2LO, ~0, 0); |
279 | SPEX(boardflags2_hi, SSB_SPROM8_BFL2HI, ~0, 0); |
280 | |
281 | SPEX(alpha2[0], SSB_SPROM8_CCODE, 0xff00, 8); |
282 | SPEX(alpha2[1], SSB_SPROM8_CCODE, 0x00ff, 0); |
283 | |
284 | /* Extract core's power info */ |
285 | for (i = 0; i < ARRAY_SIZE(pwr_info_offset); i++) { |
286 | o = pwr_info_offset[i]; |
287 | SPEX(core_pwr_info[i].itssi_2g, o + SSB_SROM8_2G_MAXP_ITSSI, |
288 | SSB_SPROM8_2G_ITSSI, SSB_SPROM8_2G_ITSSI_SHIFT); |
289 | SPEX(core_pwr_info[i].maxpwr_2g, o + SSB_SROM8_2G_MAXP_ITSSI, |
290 | SSB_SPROM8_2G_MAXP, 0); |
291 | |
292 | SPEX(core_pwr_info[i].pa_2g[0], o + SSB_SROM8_2G_PA_0, ~0, 0); |
293 | SPEX(core_pwr_info[i].pa_2g[1], o + SSB_SROM8_2G_PA_1, ~0, 0); |
294 | SPEX(core_pwr_info[i].pa_2g[2], o + SSB_SROM8_2G_PA_2, ~0, 0); |
295 | |
296 | SPEX(core_pwr_info[i].itssi_5g, o + SSB_SROM8_5G_MAXP_ITSSI, |
297 | SSB_SPROM8_5G_ITSSI, SSB_SPROM8_5G_ITSSI_SHIFT); |
298 | SPEX(core_pwr_info[i].maxpwr_5g, o + SSB_SROM8_5G_MAXP_ITSSI, |
299 | SSB_SPROM8_5G_MAXP, 0); |
300 | SPEX(core_pwr_info[i].maxpwr_5gh, o + SSB_SPROM8_5GHL_MAXP, |
301 | SSB_SPROM8_5GH_MAXP, 0); |
302 | SPEX(core_pwr_info[i].maxpwr_5gl, o + SSB_SPROM8_5GHL_MAXP, |
303 | SSB_SPROM8_5GL_MAXP, SSB_SPROM8_5GL_MAXP_SHIFT); |
304 | |
305 | SPEX(core_pwr_info[i].pa_5gl[0], o + SSB_SROM8_5GL_PA_0, ~0, 0); |
306 | SPEX(core_pwr_info[i].pa_5gl[1], o + SSB_SROM8_5GL_PA_1, ~0, 0); |
307 | SPEX(core_pwr_info[i].pa_5gl[2], o + SSB_SROM8_5GL_PA_2, ~0, 0); |
308 | SPEX(core_pwr_info[i].pa_5g[0], o + SSB_SROM8_5G_PA_0, ~0, 0); |
309 | SPEX(core_pwr_info[i].pa_5g[1], o + SSB_SROM8_5G_PA_1, ~0, 0); |
310 | SPEX(core_pwr_info[i].pa_5g[2], o + SSB_SROM8_5G_PA_2, ~0, 0); |
311 | SPEX(core_pwr_info[i].pa_5gh[0], o + SSB_SROM8_5GH_PA_0, ~0, 0); |
312 | SPEX(core_pwr_info[i].pa_5gh[1], o + SSB_SROM8_5GH_PA_1, ~0, 0); |
313 | SPEX(core_pwr_info[i].pa_5gh[2], o + SSB_SROM8_5GH_PA_2, ~0, 0); |
314 | } |
315 | |
316 | SPEX(fem.ghz2.tssipos, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_TSSIPOS, |
317 | SSB_SROM8_FEM_TSSIPOS_SHIFT); |
318 | SPEX(fem.ghz2.extpa_gain, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_EXTPA_GAIN, |
319 | SSB_SROM8_FEM_EXTPA_GAIN_SHIFT); |
320 | SPEX(fem.ghz2.pdet_range, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_PDET_RANGE, |
321 | SSB_SROM8_FEM_PDET_RANGE_SHIFT); |
322 | SPEX(fem.ghz2.tr_iso, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_TR_ISO, |
323 | SSB_SROM8_FEM_TR_ISO_SHIFT); |
324 | SPEX(fem.ghz2.antswlut, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_ANTSWLUT, |
325 | SSB_SROM8_FEM_ANTSWLUT_SHIFT); |
326 | |
327 | SPEX(fem.ghz5.tssipos, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_TSSIPOS, |
328 | SSB_SROM8_FEM_TSSIPOS_SHIFT); |
329 | SPEX(fem.ghz5.extpa_gain, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_EXTPA_GAIN, |
330 | SSB_SROM8_FEM_EXTPA_GAIN_SHIFT); |
331 | SPEX(fem.ghz5.pdet_range, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_PDET_RANGE, |
332 | SSB_SROM8_FEM_PDET_RANGE_SHIFT); |
333 | SPEX(fem.ghz5.tr_iso, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_TR_ISO, |
334 | SSB_SROM8_FEM_TR_ISO_SHIFT); |
335 | SPEX(fem.ghz5.antswlut, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_ANTSWLUT, |
336 | SSB_SROM8_FEM_ANTSWLUT_SHIFT); |
337 | |
338 | SPEX(ant_available_a, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_A, |
339 | SSB_SPROM8_ANTAVAIL_A_SHIFT); |
340 | SPEX(ant_available_bg, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_BG, |
341 | SSB_SPROM8_ANTAVAIL_BG_SHIFT); |
342 | SPEX(maxpwr_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_MAXP_BG_MASK, 0); |
343 | SPEX(itssi_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_ITSSI_BG, |
344 | SSB_SPROM8_ITSSI_BG_SHIFT); |
345 | SPEX(maxpwr_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_MAXP_A_MASK, 0); |
346 | SPEX(itssi_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_ITSSI_A, |
347 | SSB_SPROM8_ITSSI_A_SHIFT); |
348 | SPEX(maxpwr_ah, SSB_SPROM8_MAXP_AHL, SSB_SPROM8_MAXP_AH_MASK, 0); |
349 | SPEX(maxpwr_al, SSB_SPROM8_MAXP_AHL, SSB_SPROM8_MAXP_AL_MASK, |
350 | SSB_SPROM8_MAXP_AL_SHIFT); |
351 | SPEX(gpio0, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P0, 0); |
352 | SPEX(gpio1, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P1, |
353 | SSB_SPROM8_GPIOA_P1_SHIFT); |
354 | SPEX(gpio2, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P2, 0); |
355 | SPEX(gpio3, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P3, |
356 | SSB_SPROM8_GPIOB_P3_SHIFT); |
357 | SPEX(tri2g, SSB_SPROM8_TRI25G, SSB_SPROM8_TRI2G, 0); |
358 | SPEX(tri5g, SSB_SPROM8_TRI25G, SSB_SPROM8_TRI5G, |
359 | SSB_SPROM8_TRI5G_SHIFT); |
360 | SPEX(tri5gl, SSB_SPROM8_TRI5GHL, SSB_SPROM8_TRI5GL, 0); |
361 | SPEX(tri5gh, SSB_SPROM8_TRI5GHL, SSB_SPROM8_TRI5GH, |
362 | SSB_SPROM8_TRI5GH_SHIFT); |
363 | SPEX(rxpo2g, SSB_SPROM8_RXPO, SSB_SPROM8_RXPO2G, |
364 | SSB_SPROM8_RXPO2G_SHIFT); |
365 | SPEX(rxpo5g, SSB_SPROM8_RXPO, SSB_SPROM8_RXPO5G, |
366 | SSB_SPROM8_RXPO5G_SHIFT); |
367 | SPEX(rssismf2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISMF2G, 0); |
368 | SPEX(rssismc2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISMC2G, |
369 | SSB_SPROM8_RSSISMC2G_SHIFT); |
370 | SPEX(rssisav2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISAV2G, |
371 | SSB_SPROM8_RSSISAV2G_SHIFT); |
372 | SPEX(bxa2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_BXA2G, |
373 | SSB_SPROM8_BXA2G_SHIFT); |
374 | SPEX(rssismf5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISMF5G, 0); |
375 | SPEX(rssismc5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISMC5G, |
376 | SSB_SPROM8_RSSISMC5G_SHIFT); |
377 | SPEX(rssisav5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISAV5G, |
378 | SSB_SPROM8_RSSISAV5G_SHIFT); |
379 | SPEX(bxa5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_BXA5G, |
380 | SSB_SPROM8_BXA5G_SHIFT); |
381 | |
382 | SPEX(pa0b0, SSB_SPROM8_PA0B0, ~0, 0); |
383 | SPEX(pa0b1, SSB_SPROM8_PA0B1, ~0, 0); |
384 | SPEX(pa0b2, SSB_SPROM8_PA0B2, ~0, 0); |
385 | SPEX(pa1b0, SSB_SPROM8_PA1B0, ~0, 0); |
386 | SPEX(pa1b1, SSB_SPROM8_PA1B1, ~0, 0); |
387 | SPEX(pa1b2, SSB_SPROM8_PA1B2, ~0, 0); |
388 | SPEX(pa1lob0, SSB_SPROM8_PA1LOB0, ~0, 0); |
389 | SPEX(pa1lob1, SSB_SPROM8_PA1LOB1, ~0, 0); |
390 | SPEX(pa1lob2, SSB_SPROM8_PA1LOB2, ~0, 0); |
391 | SPEX(pa1hib0, SSB_SPROM8_PA1HIB0, ~0, 0); |
392 | SPEX(pa1hib1, SSB_SPROM8_PA1HIB1, ~0, 0); |
393 | SPEX(pa1hib2, SSB_SPROM8_PA1HIB2, ~0, 0); |
394 | SPEX(cck2gpo, SSB_SPROM8_CCK2GPO, ~0, 0); |
395 | SPEX32(ofdm2gpo, SSB_SPROM8_OFDM2GPO, ~0, 0); |
396 | SPEX32(ofdm5glpo, SSB_SPROM8_OFDM5GLPO, ~0, 0); |
397 | SPEX32(ofdm5gpo, SSB_SPROM8_OFDM5GPO, ~0, 0); |
398 | SPEX32(ofdm5ghpo, SSB_SPROM8_OFDM5GHPO, ~0, 0); |
399 | |
400 | /* Extract the antenna gain values. */ |
401 | bus->sprom.antenna_gain.a0 = sprom_extract_antgain(in: sprom, |
402 | SSB_SPROM8_AGAIN01, |
403 | SSB_SPROM8_AGAIN0, |
404 | SSB_SPROM8_AGAIN0_SHIFT); |
405 | bus->sprom.antenna_gain.a1 = sprom_extract_antgain(in: sprom, |
406 | SSB_SPROM8_AGAIN01, |
407 | SSB_SPROM8_AGAIN1, |
408 | SSB_SPROM8_AGAIN1_SHIFT); |
409 | bus->sprom.antenna_gain.a2 = sprom_extract_antgain(in: sprom, |
410 | SSB_SPROM8_AGAIN23, |
411 | SSB_SPROM8_AGAIN2, |
412 | SSB_SPROM8_AGAIN2_SHIFT); |
413 | bus->sprom.antenna_gain.a3 = sprom_extract_antgain(in: sprom, |
414 | SSB_SPROM8_AGAIN23, |
415 | SSB_SPROM8_AGAIN3, |
416 | SSB_SPROM8_AGAIN3_SHIFT); |
417 | |
418 | SPEX(leddc_on_time, SSB_SPROM8_LEDDC, SSB_SPROM8_LEDDC_ON, |
419 | SSB_SPROM8_LEDDC_ON_SHIFT); |
420 | SPEX(leddc_off_time, SSB_SPROM8_LEDDC, SSB_SPROM8_LEDDC_OFF, |
421 | SSB_SPROM8_LEDDC_OFF_SHIFT); |
422 | |
423 | SPEX(txchain, SSB_SPROM8_TXRXC, SSB_SPROM8_TXRXC_TXCHAIN, |
424 | SSB_SPROM8_TXRXC_TXCHAIN_SHIFT); |
425 | SPEX(rxchain, SSB_SPROM8_TXRXC, SSB_SPROM8_TXRXC_RXCHAIN, |
426 | SSB_SPROM8_TXRXC_RXCHAIN_SHIFT); |
427 | SPEX(antswitch, SSB_SPROM8_TXRXC, SSB_SPROM8_TXRXC_SWITCH, |
428 | SSB_SPROM8_TXRXC_SWITCH_SHIFT); |
429 | |
430 | SPEX(opo, SSB_SPROM8_OFDM2GPO, 0x00ff, 0); |
431 | |
432 | SPEX_ARRAY8(mcs2gpo, SSB_SPROM8_2G_MCSPO, ~0, 0); |
433 | SPEX_ARRAY8(mcs5gpo, SSB_SPROM8_5G_MCSPO, ~0, 0); |
434 | SPEX_ARRAY8(mcs5glpo, SSB_SPROM8_5GL_MCSPO, ~0, 0); |
435 | SPEX_ARRAY8(mcs5ghpo, SSB_SPROM8_5GH_MCSPO, ~0, 0); |
436 | |
437 | SPEX(rawtempsense, SSB_SPROM8_RAWTS, SSB_SPROM8_RAWTS_RAWTEMP, |
438 | SSB_SPROM8_RAWTS_RAWTEMP_SHIFT); |
439 | SPEX(measpower, SSB_SPROM8_RAWTS, SSB_SPROM8_RAWTS_MEASPOWER, |
440 | SSB_SPROM8_RAWTS_MEASPOWER_SHIFT); |
441 | SPEX(tempsense_slope, SSB_SPROM8_OPT_CORRX, |
442 | SSB_SPROM8_OPT_CORRX_TEMP_SLOPE, |
443 | SSB_SPROM8_OPT_CORRX_TEMP_SLOPE_SHIFT); |
444 | SPEX(tempcorrx, SSB_SPROM8_OPT_CORRX, SSB_SPROM8_OPT_CORRX_TEMPCORRX, |
445 | SSB_SPROM8_OPT_CORRX_TEMPCORRX_SHIFT); |
446 | SPEX(tempsense_option, SSB_SPROM8_OPT_CORRX, |
447 | SSB_SPROM8_OPT_CORRX_TEMP_OPTION, |
448 | SSB_SPROM8_OPT_CORRX_TEMP_OPTION_SHIFT); |
449 | SPEX(freqoffset_corr, SSB_SPROM8_HWIQ_IQSWP, |
450 | SSB_SPROM8_HWIQ_IQSWP_FREQ_CORR, |
451 | SSB_SPROM8_HWIQ_IQSWP_FREQ_CORR_SHIFT); |
452 | SPEX(iqcal_swp_dis, SSB_SPROM8_HWIQ_IQSWP, |
453 | SSB_SPROM8_HWIQ_IQSWP_IQCAL_SWP, |
454 | SSB_SPROM8_HWIQ_IQSWP_IQCAL_SWP_SHIFT); |
455 | SPEX(hw_iqcal_en, SSB_SPROM8_HWIQ_IQSWP, SSB_SPROM8_HWIQ_IQSWP_HW_IQCAL, |
456 | SSB_SPROM8_HWIQ_IQSWP_HW_IQCAL_SHIFT); |
457 | |
458 | SPEX(bw40po, SSB_SPROM8_BW40PO, ~0, 0); |
459 | SPEX(cddpo, SSB_SPROM8_CDDPO, ~0, 0); |
460 | SPEX(stbcpo, SSB_SPROM8_STBCPO, ~0, 0); |
461 | SPEX(bwduppo, SSB_SPROM8_BWDUPPO, ~0, 0); |
462 | |
463 | SPEX(tempthresh, SSB_SPROM8_THERMAL, SSB_SPROM8_THERMAL_TRESH, |
464 | SSB_SPROM8_THERMAL_TRESH_SHIFT); |
465 | SPEX(tempoffset, SSB_SPROM8_THERMAL, SSB_SPROM8_THERMAL_OFFSET, |
466 | SSB_SPROM8_THERMAL_OFFSET_SHIFT); |
467 | SPEX(phycal_tempdelta, SSB_SPROM8_TEMPDELTA, |
468 | SSB_SPROM8_TEMPDELTA_PHYCAL, |
469 | SSB_SPROM8_TEMPDELTA_PHYCAL_SHIFT); |
470 | SPEX(temps_period, SSB_SPROM8_TEMPDELTA, SSB_SPROM8_TEMPDELTA_PERIOD, |
471 | SSB_SPROM8_TEMPDELTA_PERIOD_SHIFT); |
472 | SPEX(temps_hysteresis, SSB_SPROM8_TEMPDELTA, |
473 | SSB_SPROM8_TEMPDELTA_HYSTERESIS, |
474 | SSB_SPROM8_TEMPDELTA_HYSTERESIS_SHIFT); |
475 | } |
476 | |
477 | /* |
478 | * Indicates the presence of external SPROM. |
479 | */ |
480 | static bool bcma_sprom_ext_available(struct bcma_bus *bus) |
481 | { |
482 | u32 chip_status; |
483 | u32 srom_control; |
484 | u32 present_mask; |
485 | |
486 | if (bus->drv_cc.core->id.rev >= 31) { |
487 | if (!(bus->drv_cc.capabilities & BCMA_CC_CAP_SPROM)) |
488 | return false; |
489 | |
490 | srom_control = bcma_read32(core: bus->drv_cc.core, |
491 | BCMA_CC_SROM_CONTROL); |
492 | return srom_control & BCMA_CC_SROM_CONTROL_PRESENT; |
493 | } |
494 | |
495 | /* older chipcommon revisions use chip status register */ |
496 | chip_status = bcma_read32(core: bus->drv_cc.core, BCMA_CC_CHIPSTAT); |
497 | switch (bus->chipinfo.id) { |
498 | case BCMA_CHIP_ID_BCM4313: |
499 | present_mask = BCMA_CC_CHIPST_4313_SPROM_PRESENT; |
500 | break; |
501 | |
502 | case BCMA_CHIP_ID_BCM4331: |
503 | present_mask = BCMA_CC_CHIPST_4331_SPROM_PRESENT; |
504 | break; |
505 | |
506 | default: |
507 | return true; |
508 | } |
509 | |
510 | return chip_status & present_mask; |
511 | } |
512 | |
513 | /* |
514 | * Indicates that on-chip OTP memory is present and enabled. |
515 | */ |
516 | static bool bcma_sprom_onchip_available(struct bcma_bus *bus) |
517 | { |
518 | u32 chip_status; |
519 | u32 otpsize = 0; |
520 | bool present; |
521 | |
522 | chip_status = bcma_read32(core: bus->drv_cc.core, BCMA_CC_CHIPSTAT); |
523 | switch (bus->chipinfo.id) { |
524 | case BCMA_CHIP_ID_BCM4313: |
525 | present = chip_status & BCMA_CC_CHIPST_4313_OTP_PRESENT; |
526 | break; |
527 | |
528 | case BCMA_CHIP_ID_BCM4331: |
529 | present = chip_status & BCMA_CC_CHIPST_4331_OTP_PRESENT; |
530 | break; |
531 | case BCMA_CHIP_ID_BCM43142: |
532 | case BCMA_CHIP_ID_BCM43224: |
533 | case BCMA_CHIP_ID_BCM43225: |
534 | /* for these chips OTP is always available */ |
535 | present = true; |
536 | break; |
537 | case BCMA_CHIP_ID_BCM43131: |
538 | case BCMA_CHIP_ID_BCM43217: |
539 | case BCMA_CHIP_ID_BCM43227: |
540 | case BCMA_CHIP_ID_BCM43228: |
541 | case BCMA_CHIP_ID_BCM43428: |
542 | present = chip_status & BCMA_CC_CHIPST_43228_OTP_PRESENT; |
543 | break; |
544 | default: |
545 | present = false; |
546 | break; |
547 | } |
548 | |
549 | if (present) { |
550 | otpsize = bus->drv_cc.capabilities & BCMA_CC_CAP_OTPS; |
551 | otpsize >>= BCMA_CC_CAP_OTPS_SHIFT; |
552 | } |
553 | |
554 | return otpsize != 0; |
555 | } |
556 | |
557 | /* |
558 | * Verify OTP is filled and determine the byte |
559 | * offset where SPROM data is located. |
560 | * |
561 | * On error, returns 0; byte offset otherwise. |
562 | */ |
563 | static int bcma_sprom_onchip_offset(struct bcma_bus *bus) |
564 | { |
565 | struct bcma_device *cc = bus->drv_cc.core; |
566 | u32 offset; |
567 | |
568 | /* verify OTP status */ |
569 | if ((bcma_read32(core: cc, BCMA_CC_OTPS) & BCMA_CC_OTPS_GU_PROG_HW) == 0) |
570 | return 0; |
571 | |
572 | /* obtain bit offset from otplayout register */ |
573 | offset = (bcma_read32(core: cc, BCMA_CC_OTPL) & BCMA_CC_OTPL_GURGN_OFFSET); |
574 | return BCMA_CC_SPROM + (offset >> 3); |
575 | } |
576 | |
577 | int bcma_sprom_get(struct bcma_bus *bus) |
578 | { |
579 | u16 offset = BCMA_CC_SPROM; |
580 | u16 *sprom; |
581 | static const size_t sprom_sizes[] = { |
582 | SSB_SPROMSIZE_WORDS_R4, |
583 | SSB_SPROMSIZE_WORDS_R10, |
584 | SSB_SPROMSIZE_WORDS_R11, |
585 | }; |
586 | int i, err = 0; |
587 | |
588 | if (!bus->drv_cc.core) |
589 | return -EOPNOTSUPP; |
590 | |
591 | if (!bcma_sprom_ext_available(bus)) { |
592 | bool sprom_onchip; |
593 | |
594 | /* |
595 | * External SPROM takes precedence so check |
596 | * on-chip OTP only when no external SPROM |
597 | * is present. |
598 | */ |
599 | sprom_onchip = bcma_sprom_onchip_available(bus); |
600 | if (sprom_onchip) { |
601 | /* determine offset */ |
602 | offset = bcma_sprom_onchip_offset(bus); |
603 | } |
604 | if (!offset || !sprom_onchip) { |
605 | /* |
606 | * Maybe there is no SPROM on the device? |
607 | * Now we ask the arch code if there is some sprom |
608 | * available for this device in some other storage. |
609 | */ |
610 | err = bcma_fill_sprom_with_fallback(bus, out: &bus->sprom); |
611 | return err; |
612 | } |
613 | } |
614 | |
615 | if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4331 || |
616 | bus->chipinfo.id == BCMA_CHIP_ID_BCM43431) |
617 | bcma_chipco_bcm4331_ext_pa_lines_ctl(cc: &bus->drv_cc, enable: false); |
618 | |
619 | bcma_debug(bus, "SPROM offset 0x%x\n" , offset); |
620 | for (i = 0; i < ARRAY_SIZE(sprom_sizes); i++) { |
621 | size_t words = sprom_sizes[i]; |
622 | |
623 | sprom = kcalloc(n: words, size: sizeof(u16), GFP_KERNEL); |
624 | if (!sprom) |
625 | return -ENOMEM; |
626 | |
627 | bcma_sprom_read(bus, offset, sprom, words); |
628 | err = bcma_sprom_valid(bus, sprom, words); |
629 | if (!err) |
630 | break; |
631 | |
632 | kfree(objp: sprom); |
633 | } |
634 | |
635 | if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4331 || |
636 | bus->chipinfo.id == BCMA_CHIP_ID_BCM43431) |
637 | bcma_chipco_bcm4331_ext_pa_lines_ctl(cc: &bus->drv_cc, enable: true); |
638 | |
639 | if (err) { |
640 | bcma_warn(bus, "Invalid SPROM read from the PCIe card, trying to use fallback SPROM\n" ); |
641 | err = bcma_fill_sprom_with_fallback(bus, out: &bus->sprom); |
642 | } else { |
643 | bcma_sprom_extract_r8(bus, sprom); |
644 | kfree(objp: sprom); |
645 | } |
646 | |
647 | return err; |
648 | } |
649 | |