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path: root/drivers/ssb/pci.c
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Diffstat (limited to 'drivers/ssb/pci.c')
-rw-r--r--drivers/ssb/pci.c76
1 files changed, 65 insertions, 11 deletions
diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c
index 9777dcb5bfe5..ed2a38752274 100644
--- a/drivers/ssb/pci.c
+++ b/drivers/ssb/pci.c
@@ -247,7 +247,7 @@ static void sprom_do_read(struct ssb_bus *bus, u16 *sprom)
247 int i; 247 int i;
248 248
249 for (i = 0; i < bus->sprom_size; i++) 249 for (i = 0; i < bus->sprom_size; i++)
250 sprom[i] = readw(bus->mmio + SSB_SPROM_BASE + (i * 2)); 250 sprom[i] = ioread16(bus->mmio + SSB_SPROM_BASE + (i * 2));
251} 251}
252 252
253static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom) 253static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom)
@@ -297,10 +297,32 @@ err_ctlreg:
297 return err; 297 return err;
298} 298}
299 299
300static s8 r123_extract_antgain(u8 sprom_revision, const u16 *in,
301 u16 mask, u16 shift)
302{
303 u16 v;
304 u8 gain;
305
306 v = in[SPOFF(SSB_SPROM1_AGAIN)];
307 gain = (v & mask) >> shift;
308 if (gain == 0xFF)
309 gain = 2; /* If unset use 2dBm */
310 if (sprom_revision == 1) {
311 /* Convert to Q5.2 */
312 gain <<= 2;
313 } else {
314 /* Q5.2 Fractional part is stored in 0xC0 */
315 gain = ((gain & 0xC0) >> 6) | ((gain & 0x3F) << 2);
316 }
317
318 return (s8)gain;
319}
320
300static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in) 321static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in)
301{ 322{
302 int i; 323 int i;
303 u16 v; 324 u16 v;
325 s8 gain;
304 u16 loc[3]; 326 u16 loc[3];
305 327
306 if (out->revision == 3) { /* rev 3 moved MAC */ 328 if (out->revision == 3) { /* rev 3 moved MAC */
@@ -327,8 +349,15 @@ static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in)
327 SPEX(et0phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0A, 0); 349 SPEX(et0phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0A, 0);
328 SPEX(et1phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1A, 350 SPEX(et1phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1A,
329 SSB_SPROM1_ETHPHY_ET1A_SHIFT); 351 SSB_SPROM1_ETHPHY_ET1A_SHIFT);
352 SPEX(et0mdcport, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0M, 14);
353 SPEX(et1mdcport, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1M, 15);
354 SPEX(board_rev, SSB_SPROM1_BINF, SSB_SPROM1_BINF_BREV, 0);
330 SPEX(country_code, SSB_SPROM1_BINF, SSB_SPROM1_BINF_CCODE, 355 SPEX(country_code, SSB_SPROM1_BINF, SSB_SPROM1_BINF_CCODE,
331 SSB_SPROM1_BINF_CCODE_SHIFT); 356 SSB_SPROM1_BINF_CCODE_SHIFT);
357 SPEX(ant_available_a, SSB_SPROM1_BINF, SSB_SPROM1_BINF_ANTA,
358 SSB_SPROM1_BINF_ANTA_SHIFT);
359 SPEX(ant_available_bg, SSB_SPROM1_BINF, SSB_SPROM1_BINF_ANTBG,
360 SSB_SPROM1_BINF_ANTBG_SHIFT);
332 SPEX(pa0b0, SSB_SPROM1_PA0B0, 0xFFFF, 0); 361 SPEX(pa0b0, SSB_SPROM1_PA0B0, 0xFFFF, 0);
333 SPEX(pa0b1, SSB_SPROM1_PA0B1, 0xFFFF, 0); 362 SPEX(pa0b1, SSB_SPROM1_PA0B1, 0xFFFF, 0);
334 SPEX(pa0b2, SSB_SPROM1_PA0B2, 0xFFFF, 0); 363 SPEX(pa0b2, SSB_SPROM1_PA0B2, 0xFFFF, 0);
@@ -348,9 +377,22 @@ static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in)
348 SSB_SPROM1_ITSSI_A_SHIFT); 377 SSB_SPROM1_ITSSI_A_SHIFT);
349 SPEX(itssi_bg, SSB_SPROM1_ITSSI, SSB_SPROM1_ITSSI_BG, 0); 378 SPEX(itssi_bg, SSB_SPROM1_ITSSI, SSB_SPROM1_ITSSI_BG, 0);
350 SPEX(boardflags_lo, SSB_SPROM1_BFLLO, 0xFFFF, 0); 379 SPEX(boardflags_lo, SSB_SPROM1_BFLLO, 0xFFFF, 0);
351 SPEX(antenna_gain_a, SSB_SPROM1_AGAIN, SSB_SPROM1_AGAIN_A, 0); 380
352 SPEX(antenna_gain_bg, SSB_SPROM1_AGAIN, SSB_SPROM1_AGAIN_BG, 381 /* Extract the antenna gain values. */
353 SSB_SPROM1_AGAIN_BG_SHIFT); 382 gain = r123_extract_antgain(out->revision, in,
383 SSB_SPROM1_AGAIN_BG,
384 SSB_SPROM1_AGAIN_BG_SHIFT);
385 out->antenna_gain.ghz24.a0 = gain;
386 out->antenna_gain.ghz24.a1 = gain;
387 out->antenna_gain.ghz24.a2 = gain;
388 out->antenna_gain.ghz24.a3 = gain;
389 gain = r123_extract_antgain(out->revision, in,
390 SSB_SPROM1_AGAIN_A,
391 SSB_SPROM1_AGAIN_A_SHIFT);
392 out->antenna_gain.ghz5.a0 = gain;
393 out->antenna_gain.ghz5.a1 = gain;
394 out->antenna_gain.ghz5.a2 = gain;
395 out->antenna_gain.ghz5.a3 = gain;
354} 396}
355 397
356static void sprom_extract_r4(struct ssb_sprom *out, const u16 *in) 398static void sprom_extract_r4(struct ssb_sprom *out, const u16 *in)
@@ -376,9 +418,10 @@ static void sprom_extract_r4(struct ssb_sprom *out, const u16 *in)
376 SSB_SPROM4_ETHPHY_ET1A_SHIFT); 418 SSB_SPROM4_ETHPHY_ET1A_SHIFT);
377 SPEX(country_code, SSB_SPROM4_CCODE, 0xFFFF, 0); 419 SPEX(country_code, SSB_SPROM4_CCODE, 0xFFFF, 0);
378 SPEX(boardflags_lo, SSB_SPROM4_BFLLO, 0xFFFF, 0); 420 SPEX(boardflags_lo, SSB_SPROM4_BFLLO, 0xFFFF, 0);
379 SPEX(antenna_gain_a, SSB_SPROM4_AGAIN, SSB_SPROM4_AGAIN_0, 0); 421 SPEX(ant_available_a, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_A,
380 SPEX(antenna_gain_bg, SSB_SPROM4_AGAIN, SSB_SPROM4_AGAIN_1, 422 SSB_SPROM4_ANTAVAIL_A_SHIFT);
381 SSB_SPROM4_AGAIN_1_SHIFT); 423 SPEX(ant_available_bg, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_BG,
424 SSB_SPROM4_ANTAVAIL_BG_SHIFT);
382 SPEX(maxpwr_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_MAXP_BG_MASK, 0); 425 SPEX(maxpwr_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_MAXP_BG_MASK, 0);
383 SPEX(itssi_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_ITSSI_BG, 426 SPEX(itssi_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_ITSSI_BG,
384 SSB_SPROM4_ITSSI_BG_SHIFT); 427 SSB_SPROM4_ITSSI_BG_SHIFT);
@@ -391,6 +434,19 @@ static void sprom_extract_r4(struct ssb_sprom *out, const u16 *in)
391 SPEX(gpio2, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P2, 0); 434 SPEX(gpio2, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P2, 0);
392 SPEX(gpio3, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P3, 435 SPEX(gpio3, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P3,
393 SSB_SPROM4_GPIOB_P3_SHIFT); 436 SSB_SPROM4_GPIOB_P3_SHIFT);
437
438 /* Extract the antenna gain values. */
439 SPEX(antenna_gain.ghz24.a0, SSB_SPROM4_AGAIN01,
440 SSB_SPROM4_AGAIN0, SSB_SPROM4_AGAIN0_SHIFT);
441 SPEX(antenna_gain.ghz24.a1, SSB_SPROM4_AGAIN01,
442 SSB_SPROM4_AGAIN1, SSB_SPROM4_AGAIN1_SHIFT);
443 SPEX(antenna_gain.ghz24.a2, SSB_SPROM4_AGAIN23,
444 SSB_SPROM4_AGAIN2, SSB_SPROM4_AGAIN2_SHIFT);
445 SPEX(antenna_gain.ghz24.a3, SSB_SPROM4_AGAIN23,
446 SSB_SPROM4_AGAIN3, SSB_SPROM4_AGAIN3_SHIFT);
447 memcpy(&out->antenna_gain.ghz5, &out->antenna_gain.ghz24,
448 sizeof(out->antenna_gain.ghz5));
449
394 /* TODO - get remaining rev 4 stuff needed */ 450 /* TODO - get remaining rev 4 stuff needed */
395} 451}
396 452
@@ -400,7 +456,7 @@ static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out,
400 memset(out, 0, sizeof(*out)); 456 memset(out, 0, sizeof(*out));
401 457
402 out->revision = in[size - 1] & 0x00FF; 458 out->revision = in[size - 1] & 0x00FF;
403 ssb_printk(KERN_INFO PFX "SPROM revision %d detected.\n", out->revision); 459 ssb_dprintk(KERN_DEBUG PFX "SPROM revision %d detected.\n", out->revision);
404 if ((bus->chip_id & 0xFF00) == 0x4400) { 460 if ((bus->chip_id & 0xFF00) == 0x4400) {
405 /* Workaround: The BCM44XX chip has a stupid revision 461 /* Workaround: The BCM44XX chip has a stupid revision
406 * number stored in the SPROM. 462 * number stored in the SPROM.
@@ -445,9 +501,7 @@ static int ssb_pci_sprom_get(struct ssb_bus *bus,
445 err = sprom_check_crc(buf, bus->sprom_size); 501 err = sprom_check_crc(buf, bus->sprom_size);
446 if (err) { 502 if (err) {
447 /* check for rev 4 sprom - has special signature */ 503 /* check for rev 4 sprom - has special signature */
448 if (buf [32] == 0x5372) { 504 if (buf[32] == 0x5372) {
449 ssb_printk(KERN_WARNING PFX "Extracting a rev 4"
450 " SPROM\n");
451 kfree(buf); 505 kfree(buf);
452 buf = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), 506 buf = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16),
453 GFP_KERNEL); 507 GFP_KERNEL);