2 * Sonics Silicon Backplane PCI-Hostbus related functions.
4 * Copyright (C) 2005-2006 Michael Buesch <mb@bu3sch.de>
5 * Copyright (C) 2005 Martin Langer <martin-langer@gmx.de>
6 * Copyright (C) 2005 Stefano Brivio <st3@riseup.net>
7 * Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org>
8 * Copyright (C) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
10 * Derived from the Broadcom 4400 device driver.
11 * Copyright (C) 2002 David S. Miller (davem@redhat.com)
12 * Fixed by Pekka Pietikainen (pp@ee.oulu.fi)
13 * Copyright (C) 2006 Broadcom Corporation.
15 * Licensed under the GNU/GPL. See COPYING for details.
18 #include <linux/ssb/ssb.h>
19 #include <linux/ssb/ssb_regs.h>
20 #include <linux/pci.h>
21 #include <linux/delay.h>
23 #include "ssb_private.h"
26 /* Define the following to 1 to enable a printk on each coreswitch. */
27 #define SSB_VERBOSE_PCICORESWITCH_DEBUG 0
30 /* Lowlevel coreswitching */
31 int ssb_pci_switch_coreidx(struct ssb_bus *bus, u8 coreidx)
38 err = pci_write_config_dword(bus->host_pci, SSB_BAR0_WIN,
39 (coreidx * SSB_CORE_SIZE)
43 err = pci_read_config_dword(bus->host_pci, SSB_BAR0_WIN,
47 cur_core = (cur_core - SSB_ENUM_BASE)
49 if (cur_core == coreidx)
52 if (attempts++ > SSB_BAR0_MAX_RETRIES)
58 ssb_printk(KERN_ERR PFX "Failed to switch to core %u\n", coreidx);
62 int ssb_pci_switch_core(struct ssb_bus *bus,
63 struct ssb_device *dev)
68 #if SSB_VERBOSE_PCICORESWITCH_DEBUG
69 ssb_printk(KERN_INFO PFX
70 "Switching to %s core, index %d\n",
71 ssb_core_name(dev->id.coreid),
75 spin_lock_irqsave(&bus->bar_lock, flags);
76 err = ssb_pci_switch_coreidx(bus, dev->core_index);
78 bus->mapped_device = dev;
79 spin_unlock_irqrestore(&bus->bar_lock, flags);
84 /* Enable/disable the on board crystal oscillator and/or PLL. */
85 int ssb_pci_xtal(struct ssb_bus *bus, u32 what, int turn_on)
88 u32 in, out, outenable;
91 if (bus->bustype != SSB_BUSTYPE_PCI)
94 err = pci_read_config_dword(bus->host_pci, SSB_GPIO_IN, &in);
97 err = pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT, &out);
100 err = pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, &outenable);
107 /* Avoid glitching the clock if GPRS is already using it.
108 * We can't actually read the state of the PLLPD so we infer it
109 * by the value of XTAL_PU which *is* readable via gpioin.
111 if (!(in & SSB_GPIO_XTAL)) {
112 if (what & SSB_GPIO_XTAL) {
113 /* Turn the crystal on */
114 out |= SSB_GPIO_XTAL;
115 if (what & SSB_GPIO_PLL)
117 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out);
120 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE,
126 if (what & SSB_GPIO_PLL) {
127 /* Turn the PLL on */
128 out &= ~SSB_GPIO_PLL;
129 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out);
136 err = pci_read_config_word(bus->host_pci, PCI_STATUS, &pci_status);
139 pci_status &= ~PCI_STATUS_SIG_TARGET_ABORT;
140 err = pci_write_config_word(bus->host_pci, PCI_STATUS, pci_status);
144 if (what & SSB_GPIO_XTAL) {
145 /* Turn the crystal off */
146 out &= ~SSB_GPIO_XTAL;
148 if (what & SSB_GPIO_PLL) {
149 /* Turn the PLL off */
152 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out);
155 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, outenable);
164 printk(KERN_ERR PFX "Error: ssb_pci_xtal() could not access PCI config space!\n");
169 /* Get the word-offset for a SSB_SPROM_XXX define. */
170 #define SPOFF(offset) (((offset) - SSB_SPROM_BASE) / sizeof(u16))
171 /* Helper to extract some _offset, which is one of the SSB_SPROM_XXX defines. */
172 #define SPEX(_outvar, _offset, _mask, _shift) \
173 out->_outvar = ((in[SPOFF(_offset)] & (_mask)) >> (_shift))
175 static inline u8 ssb_crc8(u8 crc, u8 data)
177 /* Polynomial: x^8 + x^7 + x^6 + x^4 + x^2 + 1 */
178 static const u8 t[] = {
179 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B,
180 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21,
181 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF,
182 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5,
183 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14,
184 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E,
185 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80,
186 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA,
187 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95,
188 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF,
189 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01,
190 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B,
191 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA,
192 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0,
193 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E,
194 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34,
195 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0,
196 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A,
197 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54,
198 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E,
199 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF,
200 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5,
201 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B,
202 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61,
203 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E,
204 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74,
205 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA,
206 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0,
207 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41,
208 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B,
209 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5,
210 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F,
212 return t[crc ^ data];
215 static u8 ssb_sprom_crc(const u16 *sprom, u16 size)
220 for (word = 0; word < size - 1; word++) {
221 crc = ssb_crc8(crc, sprom[word] & 0x00FF);
222 crc = ssb_crc8(crc, (sprom[word] & 0xFF00) >> 8);
224 crc = ssb_crc8(crc, sprom[size - 1] & 0x00FF);
230 static int sprom_check_crc(const u16 *sprom, size_t size)
236 crc = ssb_sprom_crc(sprom, size);
237 tmp = sprom[size - 1] & SSB_SPROM_REVISION_CRC;
238 expected_crc = tmp >> SSB_SPROM_REVISION_CRC_SHIFT;
239 if (crc != expected_crc)
245 static int sprom_do_read(struct ssb_bus *bus, u16 *sprom)
249 for (i = 0; i < bus->sprom_size; i++)
250 sprom[i] = ioread16(bus->mmio + SSB_SPROM_BASE + (i * 2));
255 static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom)
257 struct pci_dev *pdev = bus->host_pci;
260 u16 size = bus->sprom_size;
262 ssb_printk(KERN_NOTICE PFX "Writing SPROM. Do NOT turn off the power! Please stand by...\n");
263 err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl);
266 spromctl |= SSB_SPROMCTL_WE;
267 err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl);
270 ssb_printk(KERN_NOTICE PFX "[ 0%%");
272 for (i = 0; i < size; i++) {
275 else if (i == size / 2)
277 else if (i == (size * 3) / 4)
281 writew(sprom[i], bus->mmio + SSB_SPROM_BASE + (i * 2));
285 err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl);
288 spromctl &= ~SSB_SPROMCTL_WE;
289 err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl);
293 ssb_printk("100%% ]\n");
294 ssb_printk(KERN_NOTICE PFX "SPROM written.\n");
298 ssb_printk(KERN_ERR PFX "Could not access SPROM control register.\n");
302 static s8 r123_extract_antgain(u8 sprom_revision, const u16 *in,
308 v = in[SPOFF(SSB_SPROM1_AGAIN)];
309 gain = (v & mask) >> shift;
311 gain = 2; /* If unset use 2dBm */
312 if (sprom_revision == 1) {
313 /* Convert to Q5.2 */
316 /* Q5.2 Fractional part is stored in 0xC0 */
317 gain = ((gain & 0xC0) >> 6) | ((gain & 0x3F) << 2);
323 static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in)
330 if (out->revision == 3) /* rev 3 moved MAC */
331 loc[0] = SSB_SPROM3_IL0MAC;
333 loc[0] = SSB_SPROM1_IL0MAC;
334 loc[1] = SSB_SPROM1_ET0MAC;
335 loc[2] = SSB_SPROM1_ET1MAC;
337 for (i = 0; i < 3; i++) {
338 v = in[SPOFF(loc[0]) + i];
339 *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v);
341 if (out->revision < 3) { /* only rev 1-2 have et0, et1 */
342 for (i = 0; i < 3; i++) {
343 v = in[SPOFF(loc[1]) + i];
344 *(((__be16 *)out->et0mac) + i) = cpu_to_be16(v);
346 for (i = 0; i < 3; i++) {
347 v = in[SPOFF(loc[2]) + i];
348 *(((__be16 *)out->et1mac) + i) = cpu_to_be16(v);
351 SPEX(et0phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0A, 0);
352 SPEX(et1phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1A,
353 SSB_SPROM1_ETHPHY_ET1A_SHIFT);
354 SPEX(et0mdcport, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0M, 14);
355 SPEX(et1mdcport, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1M, 15);
356 SPEX(board_rev, SSB_SPROM1_BINF, SSB_SPROM1_BINF_BREV, 0);
357 SPEX(country_code, SSB_SPROM1_BINF, SSB_SPROM1_BINF_CCODE,
358 SSB_SPROM1_BINF_CCODE_SHIFT);
359 SPEX(ant_available_a, SSB_SPROM1_BINF, SSB_SPROM1_BINF_ANTA,
360 SSB_SPROM1_BINF_ANTA_SHIFT);
361 SPEX(ant_available_bg, SSB_SPROM1_BINF, SSB_SPROM1_BINF_ANTBG,
362 SSB_SPROM1_BINF_ANTBG_SHIFT);
363 SPEX(pa0b0, SSB_SPROM1_PA0B0, 0xFFFF, 0);
364 SPEX(pa0b1, SSB_SPROM1_PA0B1, 0xFFFF, 0);
365 SPEX(pa0b2, SSB_SPROM1_PA0B2, 0xFFFF, 0);
366 SPEX(pa1b0, SSB_SPROM1_PA1B0, 0xFFFF, 0);
367 SPEX(pa1b1, SSB_SPROM1_PA1B1, 0xFFFF, 0);
368 SPEX(pa1b2, SSB_SPROM1_PA1B2, 0xFFFF, 0);
369 SPEX(gpio0, SSB_SPROM1_GPIOA, SSB_SPROM1_GPIOA_P0, 0);
370 SPEX(gpio1, SSB_SPROM1_GPIOA, SSB_SPROM1_GPIOA_P1,
371 SSB_SPROM1_GPIOA_P1_SHIFT);
372 SPEX(gpio2, SSB_SPROM1_GPIOB, SSB_SPROM1_GPIOB_P2, 0);
373 SPEX(gpio3, SSB_SPROM1_GPIOB, SSB_SPROM1_GPIOB_P3,
374 SSB_SPROM1_GPIOB_P3_SHIFT);
375 SPEX(maxpwr_a, SSB_SPROM1_MAXPWR, SSB_SPROM1_MAXPWR_A,
376 SSB_SPROM1_MAXPWR_A_SHIFT);
377 SPEX(maxpwr_bg, SSB_SPROM1_MAXPWR, SSB_SPROM1_MAXPWR_BG, 0);
378 SPEX(itssi_a, SSB_SPROM1_ITSSI, SSB_SPROM1_ITSSI_A,
379 SSB_SPROM1_ITSSI_A_SHIFT);
380 SPEX(itssi_bg, SSB_SPROM1_ITSSI, SSB_SPROM1_ITSSI_BG, 0);
381 SPEX(boardflags_lo, SSB_SPROM1_BFLLO, 0xFFFF, 0);
382 if (out->revision >= 2)
383 SPEX(boardflags_hi, SSB_SPROM2_BFLHI, 0xFFFF, 0);
385 /* Extract the antenna gain values. */
386 gain = r123_extract_antgain(out->revision, in,
388 SSB_SPROM1_AGAIN_BG_SHIFT);
389 out->antenna_gain.ghz24.a0 = gain;
390 out->antenna_gain.ghz24.a1 = gain;
391 out->antenna_gain.ghz24.a2 = gain;
392 out->antenna_gain.ghz24.a3 = gain;
393 gain = r123_extract_antgain(out->revision, in,
395 SSB_SPROM1_AGAIN_A_SHIFT);
396 out->antenna_gain.ghz5.a0 = gain;
397 out->antenna_gain.ghz5.a1 = gain;
398 out->antenna_gain.ghz5.a2 = gain;
399 out->antenna_gain.ghz5.a3 = gain;
402 static void sprom_extract_r45(struct ssb_sprom *out, const u16 *in)
408 if (out->revision == 4)
409 il0mac_offset = SSB_SPROM4_IL0MAC;
411 il0mac_offset = SSB_SPROM5_IL0MAC;
412 /* extract the MAC address */
413 for (i = 0; i < 3; i++) {
414 v = in[SPOFF(il0mac_offset) + i];
415 *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v);
417 SPEX(et0phyaddr, SSB_SPROM4_ETHPHY, SSB_SPROM4_ETHPHY_ET0A, 0);
418 SPEX(et1phyaddr, SSB_SPROM4_ETHPHY, SSB_SPROM4_ETHPHY_ET1A,
419 SSB_SPROM4_ETHPHY_ET1A_SHIFT);
420 if (out->revision == 4) {
421 SPEX(country_code, SSB_SPROM4_CCODE, 0xFFFF, 0);
422 SPEX(boardflags_lo, SSB_SPROM4_BFLLO, 0xFFFF, 0);
423 SPEX(boardflags_hi, SSB_SPROM4_BFLHI, 0xFFFF, 0);
425 SPEX(country_code, SSB_SPROM5_CCODE, 0xFFFF, 0);
426 SPEX(boardflags_lo, SSB_SPROM5_BFLLO, 0xFFFF, 0);
427 SPEX(boardflags_hi, SSB_SPROM5_BFLHI, 0xFFFF, 0);
429 SPEX(ant_available_a, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_A,
430 SSB_SPROM4_ANTAVAIL_A_SHIFT);
431 SPEX(ant_available_bg, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_BG,
432 SSB_SPROM4_ANTAVAIL_BG_SHIFT);
433 SPEX(maxpwr_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_MAXP_BG_MASK, 0);
434 SPEX(itssi_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_ITSSI_BG,
435 SSB_SPROM4_ITSSI_BG_SHIFT);
436 SPEX(maxpwr_a, SSB_SPROM4_MAXP_A, SSB_SPROM4_MAXP_A_MASK, 0);
437 SPEX(itssi_a, SSB_SPROM4_MAXP_A, SSB_SPROM4_ITSSI_A,
438 SSB_SPROM4_ITSSI_A_SHIFT);
439 if (out->revision == 4) {
440 SPEX(gpio0, SSB_SPROM4_GPIOA, SSB_SPROM4_GPIOA_P0, 0);
441 SPEX(gpio1, SSB_SPROM4_GPIOA, SSB_SPROM4_GPIOA_P1,
442 SSB_SPROM4_GPIOA_P1_SHIFT);
443 SPEX(gpio2, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P2, 0);
444 SPEX(gpio3, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P3,
445 SSB_SPROM4_GPIOB_P3_SHIFT);
447 SPEX(gpio0, SSB_SPROM5_GPIOA, SSB_SPROM5_GPIOA_P0, 0);
448 SPEX(gpio1, SSB_SPROM5_GPIOA, SSB_SPROM5_GPIOA_P1,
449 SSB_SPROM5_GPIOA_P1_SHIFT);
450 SPEX(gpio2, SSB_SPROM5_GPIOB, SSB_SPROM5_GPIOB_P2, 0);
451 SPEX(gpio3, SSB_SPROM5_GPIOB, SSB_SPROM5_GPIOB_P3,
452 SSB_SPROM5_GPIOB_P3_SHIFT);
455 /* Extract the antenna gain values. */
456 SPEX(antenna_gain.ghz24.a0, SSB_SPROM4_AGAIN01,
457 SSB_SPROM4_AGAIN0, SSB_SPROM4_AGAIN0_SHIFT);
458 SPEX(antenna_gain.ghz24.a1, SSB_SPROM4_AGAIN01,
459 SSB_SPROM4_AGAIN1, SSB_SPROM4_AGAIN1_SHIFT);
460 SPEX(antenna_gain.ghz24.a2, SSB_SPROM4_AGAIN23,
461 SSB_SPROM4_AGAIN2, SSB_SPROM4_AGAIN2_SHIFT);
462 SPEX(antenna_gain.ghz24.a3, SSB_SPROM4_AGAIN23,
463 SSB_SPROM4_AGAIN3, SSB_SPROM4_AGAIN3_SHIFT);
464 memcpy(&out->antenna_gain.ghz5, &out->antenna_gain.ghz24,
465 sizeof(out->antenna_gain.ghz5));
467 /* TODO - get remaining rev 4 stuff needed */
470 static void sprom_extract_r8(struct ssb_sprom *out, const u16 *in)
475 /* extract the MAC address */
476 for (i = 0; i < 3; i++) {
477 v = in[SPOFF(SSB_SPROM1_IL0MAC) + i];
478 *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v);
480 SPEX(country_code, SSB_SPROM8_CCODE, 0xFFFF, 0);
481 SPEX(boardflags_lo, SSB_SPROM8_BFLLO, 0xFFFF, 0);
482 SPEX(boardflags_hi, SSB_SPROM8_BFLHI, 0xFFFF, 0);
483 SPEX(ant_available_a, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_A,
484 SSB_SPROM8_ANTAVAIL_A_SHIFT);
485 SPEX(ant_available_bg, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_BG,
486 SSB_SPROM8_ANTAVAIL_BG_SHIFT);
487 SPEX(maxpwr_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_MAXP_BG_MASK, 0);
488 SPEX(itssi_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_ITSSI_BG,
489 SSB_SPROM8_ITSSI_BG_SHIFT);
490 SPEX(maxpwr_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_MAXP_A_MASK, 0);
491 SPEX(itssi_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_ITSSI_A,
492 SSB_SPROM8_ITSSI_A_SHIFT);
493 SPEX(gpio0, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P0, 0);
494 SPEX(gpio1, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P1,
495 SSB_SPROM8_GPIOA_P1_SHIFT);
496 SPEX(gpio2, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P2, 0);
497 SPEX(gpio3, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P3,
498 SSB_SPROM8_GPIOB_P3_SHIFT);
500 /* Extract the antenna gain values. */
501 SPEX(antenna_gain.ghz24.a0, SSB_SPROM8_AGAIN01,
502 SSB_SPROM8_AGAIN0, SSB_SPROM8_AGAIN0_SHIFT);
503 SPEX(antenna_gain.ghz24.a1, SSB_SPROM8_AGAIN01,
504 SSB_SPROM8_AGAIN1, SSB_SPROM8_AGAIN1_SHIFT);
505 SPEX(antenna_gain.ghz24.a2, SSB_SPROM8_AGAIN23,
506 SSB_SPROM8_AGAIN2, SSB_SPROM8_AGAIN2_SHIFT);
507 SPEX(antenna_gain.ghz24.a3, SSB_SPROM8_AGAIN23,
508 SSB_SPROM8_AGAIN3, SSB_SPROM8_AGAIN3_SHIFT);
509 memcpy(&out->antenna_gain.ghz5, &out->antenna_gain.ghz24,
510 sizeof(out->antenna_gain.ghz5));
512 /* TODO - get remaining rev 8 stuff needed */
515 static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out,
516 const u16 *in, u16 size)
518 memset(out, 0, sizeof(*out));
520 out->revision = in[size - 1] & 0x00FF;
521 ssb_dprintk(KERN_DEBUG PFX "SPROM revision %d detected.\n", out->revision);
522 memset(out->et0mac, 0xFF, 6); /* preset et0 and et1 mac */
523 memset(out->et1mac, 0xFF, 6);
524 if ((bus->chip_id & 0xFF00) == 0x4400) {
525 /* Workaround: The BCM44XX chip has a stupid revision
526 * number stored in the SPROM.
527 * Always extract r1. */
529 sprom_extract_r123(out, in);
530 } else if (bus->chip_id == 0x4321) {
531 /* the BCM4328 has a chipid == 0x4321 and a rev 4 SPROM */
533 sprom_extract_r45(out, in);
535 switch (out->revision) {
539 sprom_extract_r123(out, in);
543 sprom_extract_r45(out, in);
546 sprom_extract_r8(out, in);
549 ssb_printk(KERN_WARNING PFX "Unsupported SPROM"
550 " revision %d detected. Will extract"
551 " v1\n", out->revision);
552 sprom_extract_r123(out, in);
556 if (out->boardflags_lo == 0xFFFF)
557 out->boardflags_lo = 0; /* per specs */
558 if (out->boardflags_hi == 0xFFFF)
559 out->boardflags_hi = 0; /* per specs */
564 static int ssb_pci_sprom_get(struct ssb_bus *bus,
565 struct ssb_sprom *sprom)
570 buf = kcalloc(SSB_SPROMSIZE_WORDS_R123, sizeof(u16), GFP_KERNEL);
573 bus->sprom_size = SSB_SPROMSIZE_WORDS_R123;
574 sprom_do_read(bus, buf);
575 err = sprom_check_crc(buf, bus->sprom_size);
577 /* try for a 440 byte SPROM - revision 4 and higher */
579 buf = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16),
583 bus->sprom_size = SSB_SPROMSIZE_WORDS_R4;
584 sprom_do_read(bus, buf);
585 err = sprom_check_crc(buf, bus->sprom_size);
587 ssb_printk(KERN_WARNING PFX "WARNING: Invalid"
588 " SPROM CRC (corrupt SPROM)\n");
590 err = sprom_extract(bus, sprom, buf, bus->sprom_size);
597 static void ssb_pci_get_boardinfo(struct ssb_bus *bus,
598 struct ssb_boardinfo *bi)
600 pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_VENDOR_ID,
602 pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_ID,
604 pci_read_config_word(bus->host_pci, PCI_REVISION_ID,
608 int ssb_pci_get_invariants(struct ssb_bus *bus,
609 struct ssb_init_invariants *iv)
613 err = ssb_pci_sprom_get(bus, &iv->sprom);
616 ssb_pci_get_boardinfo(bus, &iv->boardinfo);
622 #ifdef CONFIG_SSB_DEBUG
623 static int ssb_pci_assert_buspower(struct ssb_bus *bus)
625 if (likely(bus->powered_up))
628 printk(KERN_ERR PFX "FATAL ERROR: Bus powered down "
629 "while accessing PCI MMIO space\n");
630 if (bus->power_warn_count <= 10) {
631 bus->power_warn_count++;
638 static inline int ssb_pci_assert_buspower(struct ssb_bus *bus)
644 static u8 ssb_pci_read8(struct ssb_device *dev, u16 offset)
646 struct ssb_bus *bus = dev->bus;
648 if (unlikely(ssb_pci_assert_buspower(bus)))
650 if (unlikely(bus->mapped_device != dev)) {
651 if (unlikely(ssb_pci_switch_core(bus, dev)))
654 return ioread8(bus->mmio + offset);
657 static u16 ssb_pci_read16(struct ssb_device *dev, u16 offset)
659 struct ssb_bus *bus = dev->bus;
661 if (unlikely(ssb_pci_assert_buspower(bus)))
663 if (unlikely(bus->mapped_device != dev)) {
664 if (unlikely(ssb_pci_switch_core(bus, dev)))
667 return ioread16(bus->mmio + offset);
670 static u32 ssb_pci_read32(struct ssb_device *dev, u16 offset)
672 struct ssb_bus *bus = dev->bus;
674 if (unlikely(ssb_pci_assert_buspower(bus)))
676 if (unlikely(bus->mapped_device != dev)) {
677 if (unlikely(ssb_pci_switch_core(bus, dev)))
680 return ioread32(bus->mmio + offset);
683 #ifdef CONFIG_SSB_BLOCKIO
684 static void ssb_pci_block_read(struct ssb_device *dev, void *buffer,
685 size_t count, u16 offset, u8 reg_width)
687 struct ssb_bus *bus = dev->bus;
688 void __iomem *addr = bus->mmio + offset;
690 if (unlikely(ssb_pci_assert_buspower(bus)))
692 if (unlikely(bus->mapped_device != dev)) {
693 if (unlikely(ssb_pci_switch_core(bus, dev)))
698 ioread8_rep(addr, buffer, count);
701 SSB_WARN_ON(count & 1);
702 ioread16_rep(addr, buffer, count >> 1);
705 SSB_WARN_ON(count & 3);
706 ioread32_rep(addr, buffer, count >> 2);
714 memset(buffer, 0xFF, count);
716 #endif /* CONFIG_SSB_BLOCKIO */
718 static void ssb_pci_write8(struct ssb_device *dev, u16 offset, u8 value)
720 struct ssb_bus *bus = dev->bus;
722 if (unlikely(ssb_pci_assert_buspower(bus)))
724 if (unlikely(bus->mapped_device != dev)) {
725 if (unlikely(ssb_pci_switch_core(bus, dev)))
728 iowrite8(value, bus->mmio + offset);
731 static void ssb_pci_write16(struct ssb_device *dev, u16 offset, u16 value)
733 struct ssb_bus *bus = dev->bus;
735 if (unlikely(ssb_pci_assert_buspower(bus)))
737 if (unlikely(bus->mapped_device != dev)) {
738 if (unlikely(ssb_pci_switch_core(bus, dev)))
741 iowrite16(value, bus->mmio + offset);
744 static void ssb_pci_write32(struct ssb_device *dev, u16 offset, u32 value)
746 struct ssb_bus *bus = dev->bus;
748 if (unlikely(ssb_pci_assert_buspower(bus)))
750 if (unlikely(bus->mapped_device != dev)) {
751 if (unlikely(ssb_pci_switch_core(bus, dev)))
754 iowrite32(value, bus->mmio + offset);
757 #ifdef CONFIG_SSB_BLOCKIO
758 static void ssb_pci_block_write(struct ssb_device *dev, const void *buffer,
759 size_t count, u16 offset, u8 reg_width)
761 struct ssb_bus *bus = dev->bus;
762 void __iomem *addr = bus->mmio + offset;
764 if (unlikely(ssb_pci_assert_buspower(bus)))
766 if (unlikely(bus->mapped_device != dev)) {
767 if (unlikely(ssb_pci_switch_core(bus, dev)))
772 iowrite8_rep(addr, buffer, count);
775 SSB_WARN_ON(count & 1);
776 iowrite16_rep(addr, buffer, count >> 1);
779 SSB_WARN_ON(count & 3);
780 iowrite32_rep(addr, buffer, count >> 2);
786 #endif /* CONFIG_SSB_BLOCKIO */
788 /* Not "static", as it's used in main.c */
789 const struct ssb_bus_ops ssb_pci_ops = {
790 .read8 = ssb_pci_read8,
791 .read16 = ssb_pci_read16,
792 .read32 = ssb_pci_read32,
793 .write8 = ssb_pci_write8,
794 .write16 = ssb_pci_write16,
795 .write32 = ssb_pci_write32,
796 #ifdef CONFIG_SSB_BLOCKIO
797 .block_read = ssb_pci_block_read,
798 .block_write = ssb_pci_block_write,
802 static ssize_t ssb_pci_attr_sprom_show(struct device *pcidev,
803 struct device_attribute *attr,
806 struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev);
809 bus = ssb_pci_dev_to_bus(pdev);
813 return ssb_attr_sprom_show(bus, buf, sprom_do_read);
816 static ssize_t ssb_pci_attr_sprom_store(struct device *pcidev,
817 struct device_attribute *attr,
818 const char *buf, size_t count)
820 struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev);
823 bus = ssb_pci_dev_to_bus(pdev);
827 return ssb_attr_sprom_store(bus, buf, count,
828 sprom_check_crc, sprom_do_write);
831 static DEVICE_ATTR(ssb_sprom, 0600,
832 ssb_pci_attr_sprom_show,
833 ssb_pci_attr_sprom_store);
835 void ssb_pci_exit(struct ssb_bus *bus)
837 struct pci_dev *pdev;
839 if (bus->bustype != SSB_BUSTYPE_PCI)
842 pdev = bus->host_pci;
843 device_remove_file(&pdev->dev, &dev_attr_ssb_sprom);
846 int ssb_pci_init(struct ssb_bus *bus)
848 struct pci_dev *pdev;
851 if (bus->bustype != SSB_BUSTYPE_PCI)
854 pdev = bus->host_pci;
855 mutex_init(&bus->sprom_mutex);
856 err = device_create_file(&pdev->dev, &dev_attr_ssb_sprom);