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1/*
2 * Sonics Silicon Backplane PCI-Hostbus related functions.
3 *
4 * Copyright (C) 2005-2006 Michael Buesch <m@bues.ch>
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>
9 *
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.
14 *
15 * Licensed under the GNU/GPL. See COPYING for details.
16 */
17
18#include <linux/ssb/ssb.h>
19#include <linux/ssb/ssb_regs.h>
20#include <linux/slab.h>
21#include <linux/pci.h>
22#include <linux/delay.h>
23
24#include "ssb_private.h"
25
26
27/* Define the following to 1 to enable a printk on each coreswitch. */
28#define SSB_VERBOSE_PCICORESWITCH_DEBUG 0
29
30
31/* Lowlevel coreswitching */
32int ssb_pci_switch_coreidx(struct ssb_bus *bus, u8 coreidx)
33{
34 int err;
35 int attempts = 0;
36 u32 cur_core;
37
38 while (1) {
39 err = pci_write_config_dword(bus->host_pci, SSB_BAR0_WIN,
40 (coreidx * SSB_CORE_SIZE)
41 + SSB_ENUM_BASE);
42 if (err)
43 goto error;
44 err = pci_read_config_dword(bus->host_pci, SSB_BAR0_WIN,
45 &cur_core);
46 if (err)
47 goto error;
48 cur_core = (cur_core - SSB_ENUM_BASE)
49 / SSB_CORE_SIZE;
50 if (cur_core == coreidx)
51 break;
52
53 if (attempts++ > SSB_BAR0_MAX_RETRIES)
54 goto error;
55 udelay(10);
56 }
57 return 0;
58error:
59 ssb_printk(KERN_ERR PFX "Failed to switch to core %u\n", coreidx);
60 return -ENODEV;
61}
62
63int ssb_pci_switch_core(struct ssb_bus *bus,
64 struct ssb_device *dev)
65{
66 int err;
67 unsigned long flags;
68
69#if SSB_VERBOSE_PCICORESWITCH_DEBUG
70 ssb_printk(KERN_INFO PFX
71 "Switching to %s core, index %d\n",
72 ssb_core_name(dev->id.coreid),
73 dev->core_index);
74#endif
75
76 spin_lock_irqsave(&bus->bar_lock, flags);
77 err = ssb_pci_switch_coreidx(bus, dev->core_index);
78 if (!err)
79 bus->mapped_device = dev;
80 spin_unlock_irqrestore(&bus->bar_lock, flags);
81
82 return err;
83}
84
85/* Enable/disable the on board crystal oscillator and/or PLL. */
86int ssb_pci_xtal(struct ssb_bus *bus, u32 what, int turn_on)
87{
88 int err;
89 u32 in, out, outenable;
90 u16 pci_status;
91
92 if (bus->bustype != SSB_BUSTYPE_PCI)
93 return 0;
94
95 err = pci_read_config_dword(bus->host_pci, SSB_GPIO_IN, &in);
96 if (err)
97 goto err_pci;
98 err = pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT, &out);
99 if (err)
100 goto err_pci;
101 err = pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, &outenable);
102 if (err)
103 goto err_pci;
104
105 outenable |= what;
106
107 if (turn_on) {
108 /* Avoid glitching the clock if GPRS is already using it.
109 * We can't actually read the state of the PLLPD so we infer it
110 * by the value of XTAL_PU which *is* readable via gpioin.
111 */
112 if (!(in & SSB_GPIO_XTAL)) {
113 if (what & SSB_GPIO_XTAL) {
114 /* Turn the crystal on */
115 out |= SSB_GPIO_XTAL;
116 if (what & SSB_GPIO_PLL)
117 out |= SSB_GPIO_PLL;
118 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out);
119 if (err)
120 goto err_pci;
121 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE,
122 outenable);
123 if (err)
124 goto err_pci;
125 msleep(1);
126 }
127 if (what & SSB_GPIO_PLL) {
128 /* Turn the PLL on */
129 out &= ~SSB_GPIO_PLL;
130 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out);
131 if (err)
132 goto err_pci;
133 msleep(5);
134 }
135 }
136
137 err = pci_read_config_word(bus->host_pci, PCI_STATUS, &pci_status);
138 if (err)
139 goto err_pci;
140 pci_status &= ~PCI_STATUS_SIG_TARGET_ABORT;
141 err = pci_write_config_word(bus->host_pci, PCI_STATUS, pci_status);
142 if (err)
143 goto err_pci;
144 } else {
145 if (what & SSB_GPIO_XTAL) {
146 /* Turn the crystal off */
147 out &= ~SSB_GPIO_XTAL;
148 }
149 if (what & SSB_GPIO_PLL) {
150 /* Turn the PLL off */
151 out |= SSB_GPIO_PLL;
152 }
153 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out);
154 if (err)
155 goto err_pci;
156 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, outenable);
157 if (err)
158 goto err_pci;
159 }
160
161out:
162 return err;
163
164err_pci:
165 printk(KERN_ERR PFX "Error: ssb_pci_xtal() could not access PCI config space!\n");
166 err = -EBUSY;
167 goto out;
168}
169
170/* Get the word-offset for a SSB_SPROM_XXX define. */
171#define SPOFF(offset) ((offset) / sizeof(u16))
172/* Helper to extract some _offset, which is one of the SSB_SPROM_XXX defines. */
173#define SPEX16(_outvar, _offset, _mask, _shift) \
174 out->_outvar = ((in[SPOFF(_offset)] & (_mask)) >> (_shift))
175#define SPEX32(_outvar, _offset, _mask, _shift) \
176 out->_outvar = ((((u32)in[SPOFF((_offset)+2)] << 16 | \
177 in[SPOFF(_offset)]) & (_mask)) >> (_shift))
178#define SPEX(_outvar, _offset, _mask, _shift) \
179 SPEX16(_outvar, _offset, _mask, _shift)
180
181
182static inline u8 ssb_crc8(u8 crc, u8 data)
183{
184 /* Polynomial: x^8 + x^7 + x^6 + x^4 + x^2 + 1 */
185 static const u8 t[] = {
186 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B,
187 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21,
188 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF,
189 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5,
190 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14,
191 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E,
192 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80,
193 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA,
194 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95,
195 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF,
196 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01,
197 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B,
198 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA,
199 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0,
200 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E,
201 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34,
202 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0,
203 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A,
204 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54,
205 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E,
206 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF,
207 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5,
208 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B,
209 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61,
210 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E,
211 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74,
212 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA,
213 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0,
214 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41,
215 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B,
216 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5,
217 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F,
218 };
219 return t[crc ^ data];
220}
221
222static u8 ssb_sprom_crc(const u16 *sprom, u16 size)
223{
224 int word;
225 u8 crc = 0xFF;
226
227 for (word = 0; word < size - 1; word++) {
228 crc = ssb_crc8(crc, sprom[word] & 0x00FF);
229 crc = ssb_crc8(crc, (sprom[word] & 0xFF00) >> 8);
230 }
231 crc = ssb_crc8(crc, sprom[size - 1] & 0x00FF);
232 crc ^= 0xFF;
233
234 return crc;
235}
236
237static int sprom_check_crc(const u16 *sprom, size_t size)
238{
239 u8 crc;
240 u8 expected_crc;
241 u16 tmp;
242
243 crc = ssb_sprom_crc(sprom, size);
244 tmp = sprom[size - 1] & SSB_SPROM_REVISION_CRC;
245 expected_crc = tmp >> SSB_SPROM_REVISION_CRC_SHIFT;
246 if (crc != expected_crc)
247 return -EPROTO;
248
249 return 0;
250}
251
252static int sprom_do_read(struct ssb_bus *bus, u16 *sprom)
253{
254 int i;
255
256 for (i = 0; i < bus->sprom_size; i++)
257 sprom[i] = ioread16(bus->mmio + bus->sprom_offset + (i * 2));
258
259 return 0;
260}
261
262static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom)
263{
264 struct pci_dev *pdev = bus->host_pci;
265 int i, err;
266 u32 spromctl;
267 u16 size = bus->sprom_size;
268
269 ssb_printk(KERN_NOTICE PFX "Writing SPROM. Do NOT turn off the power! Please stand by...\n");
270 err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl);
271 if (err)
272 goto err_ctlreg;
273 spromctl |= SSB_SPROMCTL_WE;
274 err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl);
275 if (err)
276 goto err_ctlreg;
277 ssb_printk(KERN_NOTICE PFX "[ 0%%");
278 msleep(500);
279 for (i = 0; i < size; i++) {
280 if (i == size / 4)
281 ssb_printk("25%%");
282 else if (i == size / 2)
283 ssb_printk("50%%");
284 else if (i == (size * 3) / 4)
285 ssb_printk("75%%");
286 else if (i % 2)
287 ssb_printk(".");
288 writew(sprom[i], bus->mmio + bus->sprom_offset + (i * 2));
289 mmiowb();
290 msleep(20);
291 }
292 err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl);
293 if (err)
294 goto err_ctlreg;
295 spromctl &= ~SSB_SPROMCTL_WE;
296 err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl);
297 if (err)
298 goto err_ctlreg;
299 msleep(500);
300 ssb_printk("100%% ]\n");
301 ssb_printk(KERN_NOTICE PFX "SPROM written.\n");
302
303 return 0;
304err_ctlreg:
305 ssb_printk(KERN_ERR PFX "Could not access SPROM control register.\n");
306 return err;
307}
308
309static s8 r123_extract_antgain(u8 sprom_revision, const u16 *in,
310 u16 mask, u16 shift)
311{
312 u16 v;
313 u8 gain;
314
315 v = in[SPOFF(SSB_SPROM1_AGAIN)];
316 gain = (v & mask) >> shift;
317 if (gain == 0xFF)
318 gain = 2; /* If unset use 2dBm */
319 if (sprom_revision == 1) {
320 /* Convert to Q5.2 */
321 gain <<= 2;
322 } else {
323 /* Q5.2 Fractional part is stored in 0xC0 */
324 gain = ((gain & 0xC0) >> 6) | ((gain & 0x3F) << 2);
325 }
326
327 return (s8)gain;
328}
329
330static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in)
331{
332 int i;
333 u16 v;
334 s8 gain;
335 u16 loc[3];
336
337 if (out->revision == 3) /* rev 3 moved MAC */
338 loc[0] = SSB_SPROM3_IL0MAC;
339 else {
340 loc[0] = SSB_SPROM1_IL0MAC;
341 loc[1] = SSB_SPROM1_ET0MAC;
342 loc[2] = SSB_SPROM1_ET1MAC;
343 }
344 for (i = 0; i < 3; i++) {
345 v = in[SPOFF(loc[0]) + i];
346 *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v);
347 }
348 if (out->revision < 3) { /* only rev 1-2 have et0, et1 */
349 for (i = 0; i < 3; i++) {
350 v = in[SPOFF(loc[1]) + i];
351 *(((__be16 *)out->et0mac) + i) = cpu_to_be16(v);
352 }
353 for (i = 0; i < 3; i++) {
354 v = in[SPOFF(loc[2]) + i];
355 *(((__be16 *)out->et1mac) + i) = cpu_to_be16(v);
356 }
357 }
358 SPEX(et0phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0A, 0);
359 SPEX(et1phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1A,
360 SSB_SPROM1_ETHPHY_ET1A_SHIFT);
361 SPEX(et0mdcport, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0M, 14);
362 SPEX(et1mdcport, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1M, 15);
363 SPEX(board_rev, SSB_SPROM1_BINF, SSB_SPROM1_BINF_BREV, 0);
364 SPEX(country_code, SSB_SPROM1_BINF, SSB_SPROM1_BINF_CCODE,
365 SSB_SPROM1_BINF_CCODE_SHIFT);
366 SPEX(ant_available_a, SSB_SPROM1_BINF, SSB_SPROM1_BINF_ANTA,
367 SSB_SPROM1_BINF_ANTA_SHIFT);
368 SPEX(ant_available_bg, SSB_SPROM1_BINF, SSB_SPROM1_BINF_ANTBG,
369 SSB_SPROM1_BINF_ANTBG_SHIFT);
370 SPEX(pa0b0, SSB_SPROM1_PA0B0, 0xFFFF, 0);
371 SPEX(pa0b1, SSB_SPROM1_PA0B1, 0xFFFF, 0);
372 SPEX(pa0b2, SSB_SPROM1_PA0B2, 0xFFFF, 0);
373 SPEX(pa1b0, SSB_SPROM1_PA1B0, 0xFFFF, 0);
374 SPEX(pa1b1, SSB_SPROM1_PA1B1, 0xFFFF, 0);
375 SPEX(pa1b2, SSB_SPROM1_PA1B2, 0xFFFF, 0);
376 SPEX(gpio0, SSB_SPROM1_GPIOA, SSB_SPROM1_GPIOA_P0, 0);
377 SPEX(gpio1, SSB_SPROM1_GPIOA, SSB_SPROM1_GPIOA_P1,
378 SSB_SPROM1_GPIOA_P1_SHIFT);
379 SPEX(gpio2, SSB_SPROM1_GPIOB, SSB_SPROM1_GPIOB_P2, 0);
380 SPEX(gpio3, SSB_SPROM1_GPIOB, SSB_SPROM1_GPIOB_P3,
381 SSB_SPROM1_GPIOB_P3_SHIFT);
382 SPEX(maxpwr_a, SSB_SPROM1_MAXPWR, SSB_SPROM1_MAXPWR_A,
383 SSB_SPROM1_MAXPWR_A_SHIFT);
384 SPEX(maxpwr_bg, SSB_SPROM1_MAXPWR, SSB_SPROM1_MAXPWR_BG, 0);
385 SPEX(itssi_a, SSB_SPROM1_ITSSI, SSB_SPROM1_ITSSI_A,
386 SSB_SPROM1_ITSSI_A_SHIFT);
387 SPEX(itssi_bg, SSB_SPROM1_ITSSI, SSB_SPROM1_ITSSI_BG, 0);
388 SPEX(boardflags_lo, SSB_SPROM1_BFLLO, 0xFFFF, 0);
389 if (out->revision >= 2)
390 SPEX(boardflags_hi, SSB_SPROM2_BFLHI, 0xFFFF, 0);
391
392 /* Extract the antenna gain values. */
393 gain = r123_extract_antgain(out->revision, in,
394 SSB_SPROM1_AGAIN_BG,
395 SSB_SPROM1_AGAIN_BG_SHIFT);
396 out->antenna_gain.ghz24.a0 = gain;
397 out->antenna_gain.ghz24.a1 = gain;
398 out->antenna_gain.ghz24.a2 = gain;
399 out->antenna_gain.ghz24.a3 = gain;
400 gain = r123_extract_antgain(out->revision, in,
401 SSB_SPROM1_AGAIN_A,
402 SSB_SPROM1_AGAIN_A_SHIFT);
403 out->antenna_gain.ghz5.a0 = gain;
404 out->antenna_gain.ghz5.a1 = gain;
405 out->antenna_gain.ghz5.a2 = gain;
406 out->antenna_gain.ghz5.a3 = gain;
407}
408
409/* Revs 4 5 and 8 have partially shared layout */
410static void sprom_extract_r458(struct ssb_sprom *out, const u16 *in)
411{
412 SPEX(txpid2g[0], SSB_SPROM4_TXPID2G01,
413 SSB_SPROM4_TXPID2G0, SSB_SPROM4_TXPID2G0_SHIFT);
414 SPEX(txpid2g[1], SSB_SPROM4_TXPID2G01,
415 SSB_SPROM4_TXPID2G1, SSB_SPROM4_TXPID2G1_SHIFT);
416 SPEX(txpid2g[2], SSB_SPROM4_TXPID2G23,
417 SSB_SPROM4_TXPID2G2, SSB_SPROM4_TXPID2G2_SHIFT);
418 SPEX(txpid2g[3], SSB_SPROM4_TXPID2G23,
419 SSB_SPROM4_TXPID2G3, SSB_SPROM4_TXPID2G3_SHIFT);
420
421 SPEX(txpid5gl[0], SSB_SPROM4_TXPID5GL01,
422 SSB_SPROM4_TXPID5GL0, SSB_SPROM4_TXPID5GL0_SHIFT);
423 SPEX(txpid5gl[1], SSB_SPROM4_TXPID5GL01,
424 SSB_SPROM4_TXPID5GL1, SSB_SPROM4_TXPID5GL1_SHIFT);
425 SPEX(txpid5gl[2], SSB_SPROM4_TXPID5GL23,
426 SSB_SPROM4_TXPID5GL2, SSB_SPROM4_TXPID5GL2_SHIFT);
427 SPEX(txpid5gl[3], SSB_SPROM4_TXPID5GL23,
428 SSB_SPROM4_TXPID5GL3, SSB_SPROM4_TXPID5GL3_SHIFT);
429
430 SPEX(txpid5g[0], SSB_SPROM4_TXPID5G01,
431 SSB_SPROM4_TXPID5G0, SSB_SPROM4_TXPID5G0_SHIFT);
432 SPEX(txpid5g[1], SSB_SPROM4_TXPID5G01,
433 SSB_SPROM4_TXPID5G1, SSB_SPROM4_TXPID5G1_SHIFT);
434 SPEX(txpid5g[2], SSB_SPROM4_TXPID5G23,
435 SSB_SPROM4_TXPID5G2, SSB_SPROM4_TXPID5G2_SHIFT);
436 SPEX(txpid5g[3], SSB_SPROM4_TXPID5G23,
437 SSB_SPROM4_TXPID5G3, SSB_SPROM4_TXPID5G3_SHIFT);
438
439 SPEX(txpid5gh[0], SSB_SPROM4_TXPID5GH01,
440 SSB_SPROM4_TXPID5GH0, SSB_SPROM4_TXPID5GH0_SHIFT);
441 SPEX(txpid5gh[1], SSB_SPROM4_TXPID5GH01,
442 SSB_SPROM4_TXPID5GH1, SSB_SPROM4_TXPID5GH1_SHIFT);
443 SPEX(txpid5gh[2], SSB_SPROM4_TXPID5GH23,
444 SSB_SPROM4_TXPID5GH2, SSB_SPROM4_TXPID5GH2_SHIFT);
445 SPEX(txpid5gh[3], SSB_SPROM4_TXPID5GH23,
446 SSB_SPROM4_TXPID5GH3, SSB_SPROM4_TXPID5GH3_SHIFT);
447}
448
449static void sprom_extract_r45(struct ssb_sprom *out, const u16 *in)
450{
451 int i;
452 u16 v;
453 u16 il0mac_offset;
454
455 if (out->revision == 4)
456 il0mac_offset = SSB_SPROM4_IL0MAC;
457 else
458 il0mac_offset = SSB_SPROM5_IL0MAC;
459 /* extract the MAC address */
460 for (i = 0; i < 3; i++) {
461 v = in[SPOFF(il0mac_offset) + i];
462 *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v);
463 }
464 SPEX(et0phyaddr, SSB_SPROM4_ETHPHY, SSB_SPROM4_ETHPHY_ET0A, 0);
465 SPEX(et1phyaddr, SSB_SPROM4_ETHPHY, SSB_SPROM4_ETHPHY_ET1A,
466 SSB_SPROM4_ETHPHY_ET1A_SHIFT);
467 if (out->revision == 4) {
468 SPEX(country_code, SSB_SPROM4_CCODE, 0xFFFF, 0);
469 SPEX(boardflags_lo, SSB_SPROM4_BFLLO, 0xFFFF, 0);
470 SPEX(boardflags_hi, SSB_SPROM4_BFLHI, 0xFFFF, 0);
471 SPEX(boardflags2_lo, SSB_SPROM4_BFL2LO, 0xFFFF, 0);
472 SPEX(boardflags2_hi, SSB_SPROM4_BFL2HI, 0xFFFF, 0);
473 } else {
474 SPEX(country_code, SSB_SPROM5_CCODE, 0xFFFF, 0);
475 SPEX(boardflags_lo, SSB_SPROM5_BFLLO, 0xFFFF, 0);
476 SPEX(boardflags_hi, SSB_SPROM5_BFLHI, 0xFFFF, 0);
477 SPEX(boardflags2_lo, SSB_SPROM5_BFL2LO, 0xFFFF, 0);
478 SPEX(boardflags2_hi, SSB_SPROM5_BFL2HI, 0xFFFF, 0);
479 }
480 SPEX(ant_available_a, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_A,
481 SSB_SPROM4_ANTAVAIL_A_SHIFT);
482 SPEX(ant_available_bg, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_BG,
483 SSB_SPROM4_ANTAVAIL_BG_SHIFT);
484 SPEX(maxpwr_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_MAXP_BG_MASK, 0);
485 SPEX(itssi_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_ITSSI_BG,
486 SSB_SPROM4_ITSSI_BG_SHIFT);
487 SPEX(maxpwr_a, SSB_SPROM4_MAXP_A, SSB_SPROM4_MAXP_A_MASK, 0);
488 SPEX(itssi_a, SSB_SPROM4_MAXP_A, SSB_SPROM4_ITSSI_A,
489 SSB_SPROM4_ITSSI_A_SHIFT);
490 if (out->revision == 4) {
491 SPEX(gpio0, SSB_SPROM4_GPIOA, SSB_SPROM4_GPIOA_P0, 0);
492 SPEX(gpio1, SSB_SPROM4_GPIOA, SSB_SPROM4_GPIOA_P1,
493 SSB_SPROM4_GPIOA_P1_SHIFT);
494 SPEX(gpio2, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P2, 0);
495 SPEX(gpio3, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P3,
496 SSB_SPROM4_GPIOB_P3_SHIFT);
497 } else {
498 SPEX(gpio0, SSB_SPROM5_GPIOA, SSB_SPROM5_GPIOA_P0, 0);
499 SPEX(gpio1, SSB_SPROM5_GPIOA, SSB_SPROM5_GPIOA_P1,
500 SSB_SPROM5_GPIOA_P1_SHIFT);
501 SPEX(gpio2, SSB_SPROM5_GPIOB, SSB_SPROM5_GPIOB_P2, 0);
502 SPEX(gpio3, SSB_SPROM5_GPIOB, SSB_SPROM5_GPIOB_P3,
503 SSB_SPROM5_GPIOB_P3_SHIFT);
504 }
505
506 /* Extract the antenna gain values. */
507 SPEX(antenna_gain.ghz24.a0, SSB_SPROM4_AGAIN01,
508 SSB_SPROM4_AGAIN0, SSB_SPROM4_AGAIN0_SHIFT);
509 SPEX(antenna_gain.ghz24.a1, SSB_SPROM4_AGAIN01,
510 SSB_SPROM4_AGAIN1, SSB_SPROM4_AGAIN1_SHIFT);
511 SPEX(antenna_gain.ghz24.a2, SSB_SPROM4_AGAIN23,
512 SSB_SPROM4_AGAIN2, SSB_SPROM4_AGAIN2_SHIFT);
513 SPEX(antenna_gain.ghz24.a3, SSB_SPROM4_AGAIN23,
514 SSB_SPROM4_AGAIN3, SSB_SPROM4_AGAIN3_SHIFT);
515 memcpy(&out->antenna_gain.ghz5, &out->antenna_gain.ghz24,
516 sizeof(out->antenna_gain.ghz5));
517
518 sprom_extract_r458(out, in);
519
520 /* TODO - get remaining rev 4 stuff needed */
521}
522
523static void sprom_extract_r8(struct ssb_sprom *out, const u16 *in)
524{
525 int i;
526 u16 v;
527
528 /* extract the MAC address */
529 for (i = 0; i < 3; i++) {
530 v = in[SPOFF(SSB_SPROM8_IL0MAC) + i];
531 *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v);
532 }
533 SPEX(country_code, SSB_SPROM8_CCODE, 0xFFFF, 0);
534 SPEX(boardflags_lo, SSB_SPROM8_BFLLO, 0xFFFF, 0);
535 SPEX(boardflags_hi, SSB_SPROM8_BFLHI, 0xFFFF, 0);
536 SPEX(boardflags2_lo, SSB_SPROM8_BFL2LO, 0xFFFF, 0);
537 SPEX(boardflags2_hi, SSB_SPROM8_BFL2HI, 0xFFFF, 0);
538 SPEX(ant_available_a, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_A,
539 SSB_SPROM8_ANTAVAIL_A_SHIFT);
540 SPEX(ant_available_bg, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_BG,
541 SSB_SPROM8_ANTAVAIL_BG_SHIFT);
542 SPEX(maxpwr_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_MAXP_BG_MASK, 0);
543 SPEX(itssi_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_ITSSI_BG,
544 SSB_SPROM8_ITSSI_BG_SHIFT);
545 SPEX(maxpwr_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_MAXP_A_MASK, 0);
546 SPEX(itssi_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_ITSSI_A,
547 SSB_SPROM8_ITSSI_A_SHIFT);
548 SPEX(maxpwr_ah, SSB_SPROM8_MAXP_AHL, SSB_SPROM8_MAXP_AH_MASK, 0);
549 SPEX(maxpwr_al, SSB_SPROM8_MAXP_AHL, SSB_SPROM8_MAXP_AL_MASK,
550 SSB_SPROM8_MAXP_AL_SHIFT);
551 SPEX(gpio0, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P0, 0);
552 SPEX(gpio1, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P1,
553 SSB_SPROM8_GPIOA_P1_SHIFT);
554 SPEX(gpio2, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P2, 0);
555 SPEX(gpio3, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P3,
556 SSB_SPROM8_GPIOB_P3_SHIFT);
557 SPEX(tri2g, SSB_SPROM8_TRI25G, SSB_SPROM8_TRI2G, 0);
558 SPEX(tri5g, SSB_SPROM8_TRI25G, SSB_SPROM8_TRI5G,
559 SSB_SPROM8_TRI5G_SHIFT);
560 SPEX(tri5gl, SSB_SPROM8_TRI5GHL, SSB_SPROM8_TRI5GL, 0);
561 SPEX(tri5gh, SSB_SPROM8_TRI5GHL, SSB_SPROM8_TRI5GH,
562 SSB_SPROM8_TRI5GH_SHIFT);
563 SPEX(rxpo2g, SSB_SPROM8_RXPO, SSB_SPROM8_RXPO2G, 0);
564 SPEX(rxpo5g, SSB_SPROM8_RXPO, SSB_SPROM8_RXPO5G,
565 SSB_SPROM8_RXPO5G_SHIFT);
566 SPEX(rssismf2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISMF2G, 0);
567 SPEX(rssismc2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISMC2G,
568 SSB_SPROM8_RSSISMC2G_SHIFT);
569 SPEX(rssisav2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISAV2G,
570 SSB_SPROM8_RSSISAV2G_SHIFT);
571 SPEX(bxa2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_BXA2G,
572 SSB_SPROM8_BXA2G_SHIFT);
573 SPEX(rssismf5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISMF5G, 0);
574 SPEX(rssismc5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISMC5G,
575 SSB_SPROM8_RSSISMC5G_SHIFT);
576 SPEX(rssisav5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISAV5G,
577 SSB_SPROM8_RSSISAV5G_SHIFT);
578 SPEX(bxa5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_BXA5G,
579 SSB_SPROM8_BXA5G_SHIFT);
580 SPEX(pa0b0, SSB_SPROM8_PA0B0, 0xFFFF, 0);
581 SPEX(pa0b1, SSB_SPROM8_PA0B1, 0xFFFF, 0);
582 SPEX(pa0b2, SSB_SPROM8_PA0B2, 0xFFFF, 0);
583 SPEX(pa1b0, SSB_SPROM8_PA1B0, 0xFFFF, 0);
584 SPEX(pa1b1, SSB_SPROM8_PA1B1, 0xFFFF, 0);
585 SPEX(pa1b2, SSB_SPROM8_PA1B2, 0xFFFF, 0);
586 SPEX(pa1lob0, SSB_SPROM8_PA1LOB0, 0xFFFF, 0);
587 SPEX(pa1lob1, SSB_SPROM8_PA1LOB1, 0xFFFF, 0);
588 SPEX(pa1lob2, SSB_SPROM8_PA1LOB2, 0xFFFF, 0);
589 SPEX(pa1hib0, SSB_SPROM8_PA1HIB0, 0xFFFF, 0);
590 SPEX(pa1hib1, SSB_SPROM8_PA1HIB1, 0xFFFF, 0);
591 SPEX(pa1hib2, SSB_SPROM8_PA1HIB2, 0xFFFF, 0);
592 SPEX(cck2gpo, SSB_SPROM8_CCK2GPO, 0xFFFF, 0);
593 SPEX32(ofdm2gpo, SSB_SPROM8_OFDM2GPO, 0xFFFFFFFF, 0);
594 SPEX32(ofdm5glpo, SSB_SPROM8_OFDM5GLPO, 0xFFFFFFFF, 0);
595 SPEX32(ofdm5gpo, SSB_SPROM8_OFDM5GPO, 0xFFFFFFFF, 0);
596 SPEX32(ofdm5ghpo, SSB_SPROM8_OFDM5GHPO, 0xFFFFFFFF, 0);
597
598 /* Extract the antenna gain values. */
599 SPEX(antenna_gain.ghz24.a0, SSB_SPROM8_AGAIN01,
600 SSB_SPROM8_AGAIN0, SSB_SPROM8_AGAIN0_SHIFT);
601 SPEX(antenna_gain.ghz24.a1, SSB_SPROM8_AGAIN01,
602 SSB_SPROM8_AGAIN1, SSB_SPROM8_AGAIN1_SHIFT);
603 SPEX(antenna_gain.ghz24.a2, SSB_SPROM8_AGAIN23,
604 SSB_SPROM8_AGAIN2, SSB_SPROM8_AGAIN2_SHIFT);
605 SPEX(antenna_gain.ghz24.a3, SSB_SPROM8_AGAIN23,
606 SSB_SPROM8_AGAIN3, SSB_SPROM8_AGAIN3_SHIFT);
607 memcpy(&out->antenna_gain.ghz5, &out->antenna_gain.ghz24,
608 sizeof(out->antenna_gain.ghz5));
609
610 sprom_extract_r458(out, in);
611
612 /* TODO - get remaining rev 8 stuff needed */
613}
614
615static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out,
616 const u16 *in, u16 size)
617{
618 memset(out, 0, sizeof(*out));
619
620 out->revision = in[size - 1] & 0x00FF;
621 ssb_dprintk(KERN_DEBUG PFX "SPROM revision %d detected.\n", out->revision);
622 memset(out->et0mac, 0xFF, 6); /* preset et0 and et1 mac */
623 memset(out->et1mac, 0xFF, 6);
624
625 if ((bus->chip_id & 0xFF00) == 0x4400) {
626 /* Workaround: The BCM44XX chip has a stupid revision
627 * number stored in the SPROM.
628 * Always extract r1. */
629 out->revision = 1;
630 ssb_dprintk(KERN_DEBUG PFX "SPROM treated as revision %d\n", out->revision);
631 }
632
633 switch (out->revision) {
634 case 1:
635 case 2:
636 case 3:
637 sprom_extract_r123(out, in);
638 break;
639 case 4:
640 case 5:
641 sprom_extract_r45(out, in);
642 break;
643 case 8:
644 sprom_extract_r8(out, in);
645 break;
646 default:
647 ssb_printk(KERN_WARNING PFX "Unsupported SPROM"
648 " revision %d detected. Will extract"
649 " v1\n", out->revision);
650 out->revision = 1;
651 sprom_extract_r123(out, in);
652 }
653
654 if (out->boardflags_lo == 0xFFFF)
655 out->boardflags_lo = 0; /* per specs */
656 if (out->boardflags_hi == 0xFFFF)
657 out->boardflags_hi = 0; /* per specs */
658
659 return 0;
660}
661
662static int ssb_pci_sprom_get(struct ssb_bus *bus,
663 struct ssb_sprom *sprom)
664{
665 int err;
666 u16 *buf;
667
668 if (!ssb_is_sprom_available(bus)) {
669 ssb_printk(KERN_ERR PFX "No SPROM available!\n");
670 return -ENODEV;
671 }
672 if (bus->chipco.dev) { /* can be unavailable! */
673 /*
674 * get SPROM offset: SSB_SPROM_BASE1 except for
675 * chipcommon rev >= 31 or chip ID is 0x4312 and
676 * chipcommon status & 3 == 2
677 */
678 if (bus->chipco.dev->id.revision >= 31)
679 bus->sprom_offset = SSB_SPROM_BASE31;
680 else if (bus->chip_id == 0x4312 &&
681 (bus->chipco.status & 0x03) == 2)
682 bus->sprom_offset = SSB_SPROM_BASE31;
683 else
684 bus->sprom_offset = SSB_SPROM_BASE1;
685 } else {
686 bus->sprom_offset = SSB_SPROM_BASE1;
687 }
688 ssb_dprintk(KERN_INFO PFX "SPROM offset is 0x%x\n", bus->sprom_offset);
689
690 buf = kcalloc(SSB_SPROMSIZE_WORDS_R123, sizeof(u16), GFP_KERNEL);
691 if (!buf)
692 return -ENOMEM;
693 bus->sprom_size = SSB_SPROMSIZE_WORDS_R123;
694 sprom_do_read(bus, buf);
695 err = sprom_check_crc(buf, bus->sprom_size);
696 if (err) {
697 /* try for a 440 byte SPROM - revision 4 and higher */
698 kfree(buf);
699 buf = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16),
700 GFP_KERNEL);
701 if (!buf)
702 return -ENOMEM;
703 bus->sprom_size = SSB_SPROMSIZE_WORDS_R4;
704 sprom_do_read(bus, buf);
705 err = sprom_check_crc(buf, bus->sprom_size);
706 if (err) {
707 /* All CRC attempts failed.
708 * Maybe there is no SPROM on the device?
709 * Now we ask the arch code if there is some sprom
710 * available for this device in some other storage */
711 err = ssb_fill_sprom_with_fallback(bus, sprom);
712 if (err) {
713 ssb_printk(KERN_WARNING PFX "WARNING: Using"
714 " fallback SPROM failed (err %d)\n",
715 err);
716 } else {
717 ssb_dprintk(KERN_DEBUG PFX "Using SPROM"
718 " revision %d provided by"
719 " platform.\n", sprom->revision);
720 err = 0;
721 goto out_free;
722 }
723 ssb_printk(KERN_WARNING PFX "WARNING: Invalid"
724 " SPROM CRC (corrupt SPROM)\n");
725 }
726 }
727 err = sprom_extract(bus, sprom, buf, bus->sprom_size);
728
729out_free:
730 kfree(buf);
731 return err;
732}
733
734static void ssb_pci_get_boardinfo(struct ssb_bus *bus,
735 struct ssb_boardinfo *bi)
736{
737 bi->vendor = bus->host_pci->subsystem_vendor;
738 bi->type = bus->host_pci->subsystem_device;
739 bi->rev = bus->host_pci->revision;
740}
741
742int ssb_pci_get_invariants(struct ssb_bus *bus,
743 struct ssb_init_invariants *iv)
744{
745 int err;
746
747 err = ssb_pci_sprom_get(bus, &iv->sprom);
748 if (err)
749 goto out;
750 ssb_pci_get_boardinfo(bus, &iv->boardinfo);
751
752out:
753 return err;
754}
755
756#ifdef CONFIG_SSB_DEBUG
757static int ssb_pci_assert_buspower(struct ssb_bus *bus)
758{
759 if (likely(bus->powered_up))
760 return 0;
761
762 printk(KERN_ERR PFX "FATAL ERROR: Bus powered down "
763 "while accessing PCI MMIO space\n");
764 if (bus->power_warn_count <= 10) {
765 bus->power_warn_count++;
766 dump_stack();
767 }
768
769 return -ENODEV;
770}
771#else /* DEBUG */
772static inline int ssb_pci_assert_buspower(struct ssb_bus *bus)
773{
774 return 0;
775}
776#endif /* DEBUG */
777
778static u8 ssb_pci_read8(struct ssb_device *dev, u16 offset)
779{
780 struct ssb_bus *bus = dev->bus;
781
782 if (unlikely(ssb_pci_assert_buspower(bus)))
783 return 0xFF;
784 if (unlikely(bus->mapped_device != dev)) {
785 if (unlikely(ssb_pci_switch_core(bus, dev)))
786 return 0xFF;
787 }
788 return ioread8(bus->mmio + offset);
789}
790
791static u16 ssb_pci_read16(struct ssb_device *dev, u16 offset)
792{
793 struct ssb_bus *bus = dev->bus;
794
795 if (unlikely(ssb_pci_assert_buspower(bus)))
796 return 0xFFFF;
797 if (unlikely(bus->mapped_device != dev)) {
798 if (unlikely(ssb_pci_switch_core(bus, dev)))
799 return 0xFFFF;
800 }
801 return ioread16(bus->mmio + offset);
802}
803
804static u32 ssb_pci_read32(struct ssb_device *dev, u16 offset)
805{
806 struct ssb_bus *bus = dev->bus;
807
808 if (unlikely(ssb_pci_assert_buspower(bus)))
809 return 0xFFFFFFFF;
810 if (unlikely(bus->mapped_device != dev)) {
811 if (unlikely(ssb_pci_switch_core(bus, dev)))
812 return 0xFFFFFFFF;
813 }
814 return ioread32(bus->mmio + offset);
815}
816
817#ifdef CONFIG_SSB_BLOCKIO
818static void ssb_pci_block_read(struct ssb_device *dev, void *buffer,
819 size_t count, u16 offset, u8 reg_width)
820{
821 struct ssb_bus *bus = dev->bus;
822 void __iomem *addr = bus->mmio + offset;
823
824 if (unlikely(ssb_pci_assert_buspower(bus)))
825 goto error;
826 if (unlikely(bus->mapped_device != dev)) {
827 if (unlikely(ssb_pci_switch_core(bus, dev)))
828 goto error;
829 }
830 switch (reg_width) {
831 case sizeof(u8):
832 ioread8_rep(addr, buffer, count);
833 break;
834 case sizeof(u16):
835 SSB_WARN_ON(count & 1);
836 ioread16_rep(addr, buffer, count >> 1);
837 break;
838 case sizeof(u32):
839 SSB_WARN_ON(count & 3);
840 ioread32_rep(addr, buffer, count >> 2);
841 break;
842 default:
843 SSB_WARN_ON(1);
844 }
845
846 return;
847error:
848 memset(buffer, 0xFF, count);
849}
850#endif /* CONFIG_SSB_BLOCKIO */
851
852static void ssb_pci_write8(struct ssb_device *dev, u16 offset, u8 value)
853{
854 struct ssb_bus *bus = dev->bus;
855
856 if (unlikely(ssb_pci_assert_buspower(bus)))
857 return;
858 if (unlikely(bus->mapped_device != dev)) {
859 if (unlikely(ssb_pci_switch_core(bus, dev)))
860 return;
861 }
862 iowrite8(value, bus->mmio + offset);
863}
864
865static void ssb_pci_write16(struct ssb_device *dev, u16 offset, u16 value)
866{
867 struct ssb_bus *bus = dev->bus;
868
869 if (unlikely(ssb_pci_assert_buspower(bus)))
870 return;
871 if (unlikely(bus->mapped_device != dev)) {
872 if (unlikely(ssb_pci_switch_core(bus, dev)))
873 return;
874 }
875 iowrite16(value, bus->mmio + offset);
876}
877
878static void ssb_pci_write32(struct ssb_device *dev, u16 offset, u32 value)
879{
880 struct ssb_bus *bus = dev->bus;
881
882 if (unlikely(ssb_pci_assert_buspower(bus)))
883 return;
884 if (unlikely(bus->mapped_device != dev)) {
885 if (unlikely(ssb_pci_switch_core(bus, dev)))
886 return;
887 }
888 iowrite32(value, bus->mmio + offset);
889}
890
891#ifdef CONFIG_SSB_BLOCKIO
892static void ssb_pci_block_write(struct ssb_device *dev, const void *buffer,
893 size_t count, u16 offset, u8 reg_width)
894{
895 struct ssb_bus *bus = dev->bus;
896 void __iomem *addr = bus->mmio + offset;
897
898 if (unlikely(ssb_pci_assert_buspower(bus)))
899 return;
900 if (unlikely(bus->mapped_device != dev)) {
901 if (unlikely(ssb_pci_switch_core(bus, dev)))
902 return;
903 }
904 switch (reg_width) {
905 case sizeof(u8):
906 iowrite8_rep(addr, buffer, count);
907 break;
908 case sizeof(u16):
909 SSB_WARN_ON(count & 1);
910 iowrite16_rep(addr, buffer, count >> 1);
911 break;
912 case sizeof(u32):
913 SSB_WARN_ON(count & 3);
914 iowrite32_rep(addr, buffer, count >> 2);
915 break;
916 default:
917 SSB_WARN_ON(1);
918 }
919}
920#endif /* CONFIG_SSB_BLOCKIO */
921
922/* Not "static", as it's used in main.c */
923const struct ssb_bus_ops ssb_pci_ops = {
924 .read8 = ssb_pci_read8,
925 .read16 = ssb_pci_read16,
926 .read32 = ssb_pci_read32,
927 .write8 = ssb_pci_write8,
928 .write16 = ssb_pci_write16,
929 .write32 = ssb_pci_write32,
930#ifdef CONFIG_SSB_BLOCKIO
931 .block_read = ssb_pci_block_read,
932 .block_write = ssb_pci_block_write,
933#endif
934};
935
936static ssize_t ssb_pci_attr_sprom_show(struct device *pcidev,
937 struct device_attribute *attr,
938 char *buf)
939{
940 struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev);
941 struct ssb_bus *bus;
942
943 bus = ssb_pci_dev_to_bus(pdev);
944 if (!bus)
945 return -ENODEV;
946
947 return ssb_attr_sprom_show(bus, buf, sprom_do_read);
948}
949
950static ssize_t ssb_pci_attr_sprom_store(struct device *pcidev,
951 struct device_attribute *attr,
952 const char *buf, size_t count)
953{
954 struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev);
955 struct ssb_bus *bus;
956
957 bus = ssb_pci_dev_to_bus(pdev);
958 if (!bus)
959 return -ENODEV;
960
961 return ssb_attr_sprom_store(bus, buf, count,
962 sprom_check_crc, sprom_do_write);
963}
964
965static DEVICE_ATTR(ssb_sprom, 0600,
966 ssb_pci_attr_sprom_show,
967 ssb_pci_attr_sprom_store);
968
969void ssb_pci_exit(struct ssb_bus *bus)
970{
971 struct pci_dev *pdev;
972
973 if (bus->bustype != SSB_BUSTYPE_PCI)
974 return;
975
976 pdev = bus->host_pci;
977 device_remove_file(&pdev->dev, &dev_attr_ssb_sprom);
978}
979
980int ssb_pci_init(struct ssb_bus *bus)
981{
982 struct pci_dev *pdev;
983 int err;
984
985 if (bus->bustype != SSB_BUSTYPE_PCI)
986 return 0;
987
988 pdev = bus->host_pci;
989 mutex_init(&bus->sprom_mutex);
990 err = device_create_file(&pdev->dev, &dev_attr_ssb_sprom);
991 if (err)
992 goto out;
993
994out:
995 return err;
996}
1/*
2 * Sonics Silicon Backplane PCI-Hostbus related functions.
3 *
4 * Copyright (C) 2005-2006 Michael Buesch <m@bues.ch>
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>
9 *
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.
14 *
15 * Licensed under the GNU/GPL. See COPYING for details.
16 */
17
18#include <linux/ssb/ssb.h>
19#include <linux/ssb/ssb_regs.h>
20#include <linux/slab.h>
21#include <linux/pci.h>
22#include <linux/delay.h>
23
24#include "ssb_private.h"
25
26
27/* Define the following to 1 to enable a printk on each coreswitch. */
28#define SSB_VERBOSE_PCICORESWITCH_DEBUG 0
29
30
31/* Lowlevel coreswitching */
32int ssb_pci_switch_coreidx(struct ssb_bus *bus, u8 coreidx)
33{
34 int err;
35 int attempts = 0;
36 u32 cur_core;
37
38 while (1) {
39 err = pci_write_config_dword(bus->host_pci, SSB_BAR0_WIN,
40 (coreidx * SSB_CORE_SIZE)
41 + SSB_ENUM_BASE);
42 if (err)
43 goto error;
44 err = pci_read_config_dword(bus->host_pci, SSB_BAR0_WIN,
45 &cur_core);
46 if (err)
47 goto error;
48 cur_core = (cur_core - SSB_ENUM_BASE)
49 / SSB_CORE_SIZE;
50 if (cur_core == coreidx)
51 break;
52
53 if (attempts++ > SSB_BAR0_MAX_RETRIES)
54 goto error;
55 udelay(10);
56 }
57 return 0;
58error:
59 ssb_printk(KERN_ERR PFX "Failed to switch to core %u\n", coreidx);
60 return -ENODEV;
61}
62
63int ssb_pci_switch_core(struct ssb_bus *bus,
64 struct ssb_device *dev)
65{
66 int err;
67 unsigned long flags;
68
69#if SSB_VERBOSE_PCICORESWITCH_DEBUG
70 ssb_printk(KERN_INFO PFX
71 "Switching to %s core, index %d\n",
72 ssb_core_name(dev->id.coreid),
73 dev->core_index);
74#endif
75
76 spin_lock_irqsave(&bus->bar_lock, flags);
77 err = ssb_pci_switch_coreidx(bus, dev->core_index);
78 if (!err)
79 bus->mapped_device = dev;
80 spin_unlock_irqrestore(&bus->bar_lock, flags);
81
82 return err;
83}
84
85/* Enable/disable the on board crystal oscillator and/or PLL. */
86int ssb_pci_xtal(struct ssb_bus *bus, u32 what, int turn_on)
87{
88 int err;
89 u32 in, out, outenable;
90 u16 pci_status;
91
92 if (bus->bustype != SSB_BUSTYPE_PCI)
93 return 0;
94
95 err = pci_read_config_dword(bus->host_pci, SSB_GPIO_IN, &in);
96 if (err)
97 goto err_pci;
98 err = pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT, &out);
99 if (err)
100 goto err_pci;
101 err = pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, &outenable);
102 if (err)
103 goto err_pci;
104
105 outenable |= what;
106
107 if (turn_on) {
108 /* Avoid glitching the clock if GPRS is already using it.
109 * We can't actually read the state of the PLLPD so we infer it
110 * by the value of XTAL_PU which *is* readable via gpioin.
111 */
112 if (!(in & SSB_GPIO_XTAL)) {
113 if (what & SSB_GPIO_XTAL) {
114 /* Turn the crystal on */
115 out |= SSB_GPIO_XTAL;
116 if (what & SSB_GPIO_PLL)
117 out |= SSB_GPIO_PLL;
118 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out);
119 if (err)
120 goto err_pci;
121 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE,
122 outenable);
123 if (err)
124 goto err_pci;
125 msleep(1);
126 }
127 if (what & SSB_GPIO_PLL) {
128 /* Turn the PLL on */
129 out &= ~SSB_GPIO_PLL;
130 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out);
131 if (err)
132 goto err_pci;
133 msleep(5);
134 }
135 }
136
137 err = pci_read_config_word(bus->host_pci, PCI_STATUS, &pci_status);
138 if (err)
139 goto err_pci;
140 pci_status &= ~PCI_STATUS_SIG_TARGET_ABORT;
141 err = pci_write_config_word(bus->host_pci, PCI_STATUS, pci_status);
142 if (err)
143 goto err_pci;
144 } else {
145 if (what & SSB_GPIO_XTAL) {
146 /* Turn the crystal off */
147 out &= ~SSB_GPIO_XTAL;
148 }
149 if (what & SSB_GPIO_PLL) {
150 /* Turn the PLL off */
151 out |= SSB_GPIO_PLL;
152 }
153 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out);
154 if (err)
155 goto err_pci;
156 err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, outenable);
157 if (err)
158 goto err_pci;
159 }
160
161out:
162 return err;
163
164err_pci:
165 printk(KERN_ERR PFX "Error: ssb_pci_xtal() could not access PCI config space!\n");
166 err = -EBUSY;
167 goto out;
168}
169
170/* Get the word-offset for a SSB_SPROM_XXX define. */
171#define SPOFF(offset) ((offset) / sizeof(u16))
172/* Helper to extract some _offset, which is one of the SSB_SPROM_XXX defines. */
173#define SPEX16(_outvar, _offset, _mask, _shift) \
174 out->_outvar = ((in[SPOFF(_offset)] & (_mask)) >> (_shift))
175#define SPEX32(_outvar, _offset, _mask, _shift) \
176 out->_outvar = ((((u32)in[SPOFF((_offset)+2)] << 16 | \
177 in[SPOFF(_offset)]) & (_mask)) >> (_shift))
178#define SPEX(_outvar, _offset, _mask, _shift) \
179 SPEX16(_outvar, _offset, _mask, _shift)
180
181#define SPEX_ARRAY8(_field, _offset, _mask, _shift) \
182 do { \
183 SPEX(_field[0], _offset + 0, _mask, _shift); \
184 SPEX(_field[1], _offset + 2, _mask, _shift); \
185 SPEX(_field[2], _offset + 4, _mask, _shift); \
186 SPEX(_field[3], _offset + 6, _mask, _shift); \
187 SPEX(_field[4], _offset + 8, _mask, _shift); \
188 SPEX(_field[5], _offset + 10, _mask, _shift); \
189 SPEX(_field[6], _offset + 12, _mask, _shift); \
190 SPEX(_field[7], _offset + 14, _mask, _shift); \
191 } while (0)
192
193
194static inline u8 ssb_crc8(u8 crc, u8 data)
195{
196 /* Polynomial: x^8 + x^7 + x^6 + x^4 + x^2 + 1 */
197 static const u8 t[] = {
198 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B,
199 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21,
200 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF,
201 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5,
202 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14,
203 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E,
204 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80,
205 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA,
206 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95,
207 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF,
208 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01,
209 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B,
210 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA,
211 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0,
212 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E,
213 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34,
214 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0,
215 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A,
216 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54,
217 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E,
218 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF,
219 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5,
220 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B,
221 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61,
222 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E,
223 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74,
224 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA,
225 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0,
226 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41,
227 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B,
228 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5,
229 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F,
230 };
231 return t[crc ^ data];
232}
233
234static u8 ssb_sprom_crc(const u16 *sprom, u16 size)
235{
236 int word;
237 u8 crc = 0xFF;
238
239 for (word = 0; word < size - 1; word++) {
240 crc = ssb_crc8(crc, sprom[word] & 0x00FF);
241 crc = ssb_crc8(crc, (sprom[word] & 0xFF00) >> 8);
242 }
243 crc = ssb_crc8(crc, sprom[size - 1] & 0x00FF);
244 crc ^= 0xFF;
245
246 return crc;
247}
248
249static int sprom_check_crc(const u16 *sprom, size_t size)
250{
251 u8 crc;
252 u8 expected_crc;
253 u16 tmp;
254
255 crc = ssb_sprom_crc(sprom, size);
256 tmp = sprom[size - 1] & SSB_SPROM_REVISION_CRC;
257 expected_crc = tmp >> SSB_SPROM_REVISION_CRC_SHIFT;
258 if (crc != expected_crc)
259 return -EPROTO;
260
261 return 0;
262}
263
264static int sprom_do_read(struct ssb_bus *bus, u16 *sprom)
265{
266 int i;
267
268 for (i = 0; i < bus->sprom_size; i++)
269 sprom[i] = ioread16(bus->mmio + bus->sprom_offset + (i * 2));
270
271 return 0;
272}
273
274static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom)
275{
276 struct pci_dev *pdev = bus->host_pci;
277 int i, err;
278 u32 spromctl;
279 u16 size = bus->sprom_size;
280
281 ssb_printk(KERN_NOTICE PFX "Writing SPROM. Do NOT turn off the power! Please stand by...\n");
282 err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl);
283 if (err)
284 goto err_ctlreg;
285 spromctl |= SSB_SPROMCTL_WE;
286 err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl);
287 if (err)
288 goto err_ctlreg;
289 ssb_printk(KERN_NOTICE PFX "[ 0%%");
290 msleep(500);
291 for (i = 0; i < size; i++) {
292 if (i == size / 4)
293 ssb_printk("25%%");
294 else if (i == size / 2)
295 ssb_printk("50%%");
296 else if (i == (size * 3) / 4)
297 ssb_printk("75%%");
298 else if (i % 2)
299 ssb_printk(".");
300 writew(sprom[i], bus->mmio + bus->sprom_offset + (i * 2));
301 mmiowb();
302 msleep(20);
303 }
304 err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl);
305 if (err)
306 goto err_ctlreg;
307 spromctl &= ~SSB_SPROMCTL_WE;
308 err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl);
309 if (err)
310 goto err_ctlreg;
311 msleep(500);
312 ssb_printk("100%% ]\n");
313 ssb_printk(KERN_NOTICE PFX "SPROM written.\n");
314
315 return 0;
316err_ctlreg:
317 ssb_printk(KERN_ERR PFX "Could not access SPROM control register.\n");
318 return err;
319}
320
321static s8 r123_extract_antgain(u8 sprom_revision, const u16 *in,
322 u16 mask, u16 shift)
323{
324 u16 v;
325 u8 gain;
326
327 v = in[SPOFF(SSB_SPROM1_AGAIN)];
328 gain = (v & mask) >> shift;
329 if (gain == 0xFF)
330 gain = 2; /* If unset use 2dBm */
331 if (sprom_revision == 1) {
332 /* Convert to Q5.2 */
333 gain <<= 2;
334 } else {
335 /* Q5.2 Fractional part is stored in 0xC0 */
336 gain = ((gain & 0xC0) >> 6) | ((gain & 0x3F) << 2);
337 }
338
339 return (s8)gain;
340}
341
342static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in)
343{
344 int i;
345 u16 v;
346 u16 loc[3];
347
348 if (out->revision == 3) /* rev 3 moved MAC */
349 loc[0] = SSB_SPROM3_IL0MAC;
350 else {
351 loc[0] = SSB_SPROM1_IL0MAC;
352 loc[1] = SSB_SPROM1_ET0MAC;
353 loc[2] = SSB_SPROM1_ET1MAC;
354 }
355 for (i = 0; i < 3; i++) {
356 v = in[SPOFF(loc[0]) + i];
357 *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v);
358 }
359 if (out->revision < 3) { /* only rev 1-2 have et0, et1 */
360 for (i = 0; i < 3; i++) {
361 v = in[SPOFF(loc[1]) + i];
362 *(((__be16 *)out->et0mac) + i) = cpu_to_be16(v);
363 }
364 for (i = 0; i < 3; i++) {
365 v = in[SPOFF(loc[2]) + i];
366 *(((__be16 *)out->et1mac) + i) = cpu_to_be16(v);
367 }
368 }
369 SPEX(et0phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0A, 0);
370 SPEX(et1phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1A,
371 SSB_SPROM1_ETHPHY_ET1A_SHIFT);
372 SPEX(et0mdcport, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0M, 14);
373 SPEX(et1mdcport, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1M, 15);
374 SPEX(board_rev, SSB_SPROM1_BINF, SSB_SPROM1_BINF_BREV, 0);
375 if (out->revision == 1)
376 SPEX(country_code, SSB_SPROM1_BINF, SSB_SPROM1_BINF_CCODE,
377 SSB_SPROM1_BINF_CCODE_SHIFT);
378 SPEX(ant_available_a, SSB_SPROM1_BINF, SSB_SPROM1_BINF_ANTA,
379 SSB_SPROM1_BINF_ANTA_SHIFT);
380 SPEX(ant_available_bg, SSB_SPROM1_BINF, SSB_SPROM1_BINF_ANTBG,
381 SSB_SPROM1_BINF_ANTBG_SHIFT);
382 SPEX(pa0b0, SSB_SPROM1_PA0B0, 0xFFFF, 0);
383 SPEX(pa0b1, SSB_SPROM1_PA0B1, 0xFFFF, 0);
384 SPEX(pa0b2, SSB_SPROM1_PA0B2, 0xFFFF, 0);
385 SPEX(pa1b0, SSB_SPROM1_PA1B0, 0xFFFF, 0);
386 SPEX(pa1b1, SSB_SPROM1_PA1B1, 0xFFFF, 0);
387 SPEX(pa1b2, SSB_SPROM1_PA1B2, 0xFFFF, 0);
388 SPEX(gpio0, SSB_SPROM1_GPIOA, SSB_SPROM1_GPIOA_P0, 0);
389 SPEX(gpio1, SSB_SPROM1_GPIOA, SSB_SPROM1_GPIOA_P1,
390 SSB_SPROM1_GPIOA_P1_SHIFT);
391 SPEX(gpio2, SSB_SPROM1_GPIOB, SSB_SPROM1_GPIOB_P2, 0);
392 SPEX(gpio3, SSB_SPROM1_GPIOB, SSB_SPROM1_GPIOB_P3,
393 SSB_SPROM1_GPIOB_P3_SHIFT);
394 SPEX(maxpwr_a, SSB_SPROM1_MAXPWR, SSB_SPROM1_MAXPWR_A,
395 SSB_SPROM1_MAXPWR_A_SHIFT);
396 SPEX(maxpwr_bg, SSB_SPROM1_MAXPWR, SSB_SPROM1_MAXPWR_BG, 0);
397 SPEX(itssi_a, SSB_SPROM1_ITSSI, SSB_SPROM1_ITSSI_A,
398 SSB_SPROM1_ITSSI_A_SHIFT);
399 SPEX(itssi_bg, SSB_SPROM1_ITSSI, SSB_SPROM1_ITSSI_BG, 0);
400 SPEX(boardflags_lo, SSB_SPROM1_BFLLO, 0xFFFF, 0);
401 if (out->revision >= 2)
402 SPEX(boardflags_hi, SSB_SPROM2_BFLHI, 0xFFFF, 0);
403 SPEX(alpha2[0], SSB_SPROM1_CCODE, 0xff00, 8);
404 SPEX(alpha2[1], SSB_SPROM1_CCODE, 0x00ff, 0);
405
406 /* Extract the antenna gain values. */
407 out->antenna_gain.a0 = r123_extract_antgain(out->revision, in,
408 SSB_SPROM1_AGAIN_BG,
409 SSB_SPROM1_AGAIN_BG_SHIFT);
410 out->antenna_gain.a1 = r123_extract_antgain(out->revision, in,
411 SSB_SPROM1_AGAIN_A,
412 SSB_SPROM1_AGAIN_A_SHIFT);
413}
414
415/* Revs 4 5 and 8 have partially shared layout */
416static void sprom_extract_r458(struct ssb_sprom *out, const u16 *in)
417{
418 SPEX(txpid2g[0], SSB_SPROM4_TXPID2G01,
419 SSB_SPROM4_TXPID2G0, SSB_SPROM4_TXPID2G0_SHIFT);
420 SPEX(txpid2g[1], SSB_SPROM4_TXPID2G01,
421 SSB_SPROM4_TXPID2G1, SSB_SPROM4_TXPID2G1_SHIFT);
422 SPEX(txpid2g[2], SSB_SPROM4_TXPID2G23,
423 SSB_SPROM4_TXPID2G2, SSB_SPROM4_TXPID2G2_SHIFT);
424 SPEX(txpid2g[3], SSB_SPROM4_TXPID2G23,
425 SSB_SPROM4_TXPID2G3, SSB_SPROM4_TXPID2G3_SHIFT);
426
427 SPEX(txpid5gl[0], SSB_SPROM4_TXPID5GL01,
428 SSB_SPROM4_TXPID5GL0, SSB_SPROM4_TXPID5GL0_SHIFT);
429 SPEX(txpid5gl[1], SSB_SPROM4_TXPID5GL01,
430 SSB_SPROM4_TXPID5GL1, SSB_SPROM4_TXPID5GL1_SHIFT);
431 SPEX(txpid5gl[2], SSB_SPROM4_TXPID5GL23,
432 SSB_SPROM4_TXPID5GL2, SSB_SPROM4_TXPID5GL2_SHIFT);
433 SPEX(txpid5gl[3], SSB_SPROM4_TXPID5GL23,
434 SSB_SPROM4_TXPID5GL3, SSB_SPROM4_TXPID5GL3_SHIFT);
435
436 SPEX(txpid5g[0], SSB_SPROM4_TXPID5G01,
437 SSB_SPROM4_TXPID5G0, SSB_SPROM4_TXPID5G0_SHIFT);
438 SPEX(txpid5g[1], SSB_SPROM4_TXPID5G01,
439 SSB_SPROM4_TXPID5G1, SSB_SPROM4_TXPID5G1_SHIFT);
440 SPEX(txpid5g[2], SSB_SPROM4_TXPID5G23,
441 SSB_SPROM4_TXPID5G2, SSB_SPROM4_TXPID5G2_SHIFT);
442 SPEX(txpid5g[3], SSB_SPROM4_TXPID5G23,
443 SSB_SPROM4_TXPID5G3, SSB_SPROM4_TXPID5G3_SHIFT);
444
445 SPEX(txpid5gh[0], SSB_SPROM4_TXPID5GH01,
446 SSB_SPROM4_TXPID5GH0, SSB_SPROM4_TXPID5GH0_SHIFT);
447 SPEX(txpid5gh[1], SSB_SPROM4_TXPID5GH01,
448 SSB_SPROM4_TXPID5GH1, SSB_SPROM4_TXPID5GH1_SHIFT);
449 SPEX(txpid5gh[2], SSB_SPROM4_TXPID5GH23,
450 SSB_SPROM4_TXPID5GH2, SSB_SPROM4_TXPID5GH2_SHIFT);
451 SPEX(txpid5gh[3], SSB_SPROM4_TXPID5GH23,
452 SSB_SPROM4_TXPID5GH3, SSB_SPROM4_TXPID5GH3_SHIFT);
453}
454
455static void sprom_extract_r45(struct ssb_sprom *out, const u16 *in)
456{
457 int i;
458 u16 v;
459 u16 il0mac_offset;
460
461 if (out->revision == 4)
462 il0mac_offset = SSB_SPROM4_IL0MAC;
463 else
464 il0mac_offset = SSB_SPROM5_IL0MAC;
465 /* extract the MAC address */
466 for (i = 0; i < 3; i++) {
467 v = in[SPOFF(il0mac_offset) + i];
468 *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v);
469 }
470 SPEX(et0phyaddr, SSB_SPROM4_ETHPHY, SSB_SPROM4_ETHPHY_ET0A, 0);
471 SPEX(et1phyaddr, SSB_SPROM4_ETHPHY, SSB_SPROM4_ETHPHY_ET1A,
472 SSB_SPROM4_ETHPHY_ET1A_SHIFT);
473 SPEX(board_rev, SSB_SPROM4_BOARDREV, 0xFFFF, 0);
474 if (out->revision == 4) {
475 SPEX(alpha2[0], SSB_SPROM4_CCODE, 0xff00, 8);
476 SPEX(alpha2[1], SSB_SPROM4_CCODE, 0x00ff, 0);
477 SPEX(boardflags_lo, SSB_SPROM4_BFLLO, 0xFFFF, 0);
478 SPEX(boardflags_hi, SSB_SPROM4_BFLHI, 0xFFFF, 0);
479 SPEX(boardflags2_lo, SSB_SPROM4_BFL2LO, 0xFFFF, 0);
480 SPEX(boardflags2_hi, SSB_SPROM4_BFL2HI, 0xFFFF, 0);
481 } else {
482 SPEX(alpha2[0], SSB_SPROM5_CCODE, 0xff00, 8);
483 SPEX(alpha2[1], SSB_SPROM5_CCODE, 0x00ff, 0);
484 SPEX(boardflags_lo, SSB_SPROM5_BFLLO, 0xFFFF, 0);
485 SPEX(boardflags_hi, SSB_SPROM5_BFLHI, 0xFFFF, 0);
486 SPEX(boardflags2_lo, SSB_SPROM5_BFL2LO, 0xFFFF, 0);
487 SPEX(boardflags2_hi, SSB_SPROM5_BFL2HI, 0xFFFF, 0);
488 }
489 SPEX(ant_available_a, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_A,
490 SSB_SPROM4_ANTAVAIL_A_SHIFT);
491 SPEX(ant_available_bg, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_BG,
492 SSB_SPROM4_ANTAVAIL_BG_SHIFT);
493 SPEX(maxpwr_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_MAXP_BG_MASK, 0);
494 SPEX(itssi_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_ITSSI_BG,
495 SSB_SPROM4_ITSSI_BG_SHIFT);
496 SPEX(maxpwr_a, SSB_SPROM4_MAXP_A, SSB_SPROM4_MAXP_A_MASK, 0);
497 SPEX(itssi_a, SSB_SPROM4_MAXP_A, SSB_SPROM4_ITSSI_A,
498 SSB_SPROM4_ITSSI_A_SHIFT);
499 if (out->revision == 4) {
500 SPEX(gpio0, SSB_SPROM4_GPIOA, SSB_SPROM4_GPIOA_P0, 0);
501 SPEX(gpio1, SSB_SPROM4_GPIOA, SSB_SPROM4_GPIOA_P1,
502 SSB_SPROM4_GPIOA_P1_SHIFT);
503 SPEX(gpio2, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P2, 0);
504 SPEX(gpio3, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P3,
505 SSB_SPROM4_GPIOB_P3_SHIFT);
506 } else {
507 SPEX(gpio0, SSB_SPROM5_GPIOA, SSB_SPROM5_GPIOA_P0, 0);
508 SPEX(gpio1, SSB_SPROM5_GPIOA, SSB_SPROM5_GPIOA_P1,
509 SSB_SPROM5_GPIOA_P1_SHIFT);
510 SPEX(gpio2, SSB_SPROM5_GPIOB, SSB_SPROM5_GPIOB_P2, 0);
511 SPEX(gpio3, SSB_SPROM5_GPIOB, SSB_SPROM5_GPIOB_P3,
512 SSB_SPROM5_GPIOB_P3_SHIFT);
513 }
514
515 /* Extract the antenna gain values. */
516 SPEX(antenna_gain.a0, SSB_SPROM4_AGAIN01,
517 SSB_SPROM4_AGAIN0, SSB_SPROM4_AGAIN0_SHIFT);
518 SPEX(antenna_gain.a1, SSB_SPROM4_AGAIN01,
519 SSB_SPROM4_AGAIN1, SSB_SPROM4_AGAIN1_SHIFT);
520 SPEX(antenna_gain.a2, SSB_SPROM4_AGAIN23,
521 SSB_SPROM4_AGAIN2, SSB_SPROM4_AGAIN2_SHIFT);
522 SPEX(antenna_gain.a3, SSB_SPROM4_AGAIN23,
523 SSB_SPROM4_AGAIN3, SSB_SPROM4_AGAIN3_SHIFT);
524
525 sprom_extract_r458(out, in);
526
527 /* TODO - get remaining rev 4 stuff needed */
528}
529
530static void sprom_extract_r8(struct ssb_sprom *out, const u16 *in)
531{
532 int i;
533 u16 v, o;
534 u16 pwr_info_offset[] = {
535 SSB_SROM8_PWR_INFO_CORE0, SSB_SROM8_PWR_INFO_CORE1,
536 SSB_SROM8_PWR_INFO_CORE2, SSB_SROM8_PWR_INFO_CORE3
537 };
538 BUILD_BUG_ON(ARRAY_SIZE(pwr_info_offset) !=
539 ARRAY_SIZE(out->core_pwr_info));
540
541 /* extract the MAC address */
542 for (i = 0; i < 3; i++) {
543 v = in[SPOFF(SSB_SPROM8_IL0MAC) + i];
544 *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v);
545 }
546 SPEX(board_rev, SSB_SPROM8_BOARDREV, 0xFFFF, 0);
547 SPEX(alpha2[0], SSB_SPROM8_CCODE, 0xff00, 8);
548 SPEX(alpha2[1], SSB_SPROM8_CCODE, 0x00ff, 0);
549 SPEX(boardflags_lo, SSB_SPROM8_BFLLO, 0xFFFF, 0);
550 SPEX(boardflags_hi, SSB_SPROM8_BFLHI, 0xFFFF, 0);
551 SPEX(boardflags2_lo, SSB_SPROM8_BFL2LO, 0xFFFF, 0);
552 SPEX(boardflags2_hi, SSB_SPROM8_BFL2HI, 0xFFFF, 0);
553 SPEX(ant_available_a, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_A,
554 SSB_SPROM8_ANTAVAIL_A_SHIFT);
555 SPEX(ant_available_bg, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_BG,
556 SSB_SPROM8_ANTAVAIL_BG_SHIFT);
557 SPEX(maxpwr_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_MAXP_BG_MASK, 0);
558 SPEX(itssi_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_ITSSI_BG,
559 SSB_SPROM8_ITSSI_BG_SHIFT);
560 SPEX(maxpwr_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_MAXP_A_MASK, 0);
561 SPEX(itssi_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_ITSSI_A,
562 SSB_SPROM8_ITSSI_A_SHIFT);
563 SPEX(maxpwr_ah, SSB_SPROM8_MAXP_AHL, SSB_SPROM8_MAXP_AH_MASK, 0);
564 SPEX(maxpwr_al, SSB_SPROM8_MAXP_AHL, SSB_SPROM8_MAXP_AL_MASK,
565 SSB_SPROM8_MAXP_AL_SHIFT);
566 SPEX(gpio0, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P0, 0);
567 SPEX(gpio1, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P1,
568 SSB_SPROM8_GPIOA_P1_SHIFT);
569 SPEX(gpio2, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P2, 0);
570 SPEX(gpio3, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P3,
571 SSB_SPROM8_GPIOB_P3_SHIFT);
572 SPEX(tri2g, SSB_SPROM8_TRI25G, SSB_SPROM8_TRI2G, 0);
573 SPEX(tri5g, SSB_SPROM8_TRI25G, SSB_SPROM8_TRI5G,
574 SSB_SPROM8_TRI5G_SHIFT);
575 SPEX(tri5gl, SSB_SPROM8_TRI5GHL, SSB_SPROM8_TRI5GL, 0);
576 SPEX(tri5gh, SSB_SPROM8_TRI5GHL, SSB_SPROM8_TRI5GH,
577 SSB_SPROM8_TRI5GH_SHIFT);
578 SPEX(rxpo2g, SSB_SPROM8_RXPO, SSB_SPROM8_RXPO2G, 0);
579 SPEX(rxpo5g, SSB_SPROM8_RXPO, SSB_SPROM8_RXPO5G,
580 SSB_SPROM8_RXPO5G_SHIFT);
581 SPEX(rssismf2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISMF2G, 0);
582 SPEX(rssismc2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISMC2G,
583 SSB_SPROM8_RSSISMC2G_SHIFT);
584 SPEX(rssisav2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISAV2G,
585 SSB_SPROM8_RSSISAV2G_SHIFT);
586 SPEX(bxa2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_BXA2G,
587 SSB_SPROM8_BXA2G_SHIFT);
588 SPEX(rssismf5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISMF5G, 0);
589 SPEX(rssismc5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISMC5G,
590 SSB_SPROM8_RSSISMC5G_SHIFT);
591 SPEX(rssisav5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISAV5G,
592 SSB_SPROM8_RSSISAV5G_SHIFT);
593 SPEX(bxa5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_BXA5G,
594 SSB_SPROM8_BXA5G_SHIFT);
595 SPEX(pa0b0, SSB_SPROM8_PA0B0, 0xFFFF, 0);
596 SPEX(pa0b1, SSB_SPROM8_PA0B1, 0xFFFF, 0);
597 SPEX(pa0b2, SSB_SPROM8_PA0B2, 0xFFFF, 0);
598 SPEX(pa1b0, SSB_SPROM8_PA1B0, 0xFFFF, 0);
599 SPEX(pa1b1, SSB_SPROM8_PA1B1, 0xFFFF, 0);
600 SPEX(pa1b2, SSB_SPROM8_PA1B2, 0xFFFF, 0);
601 SPEX(pa1lob0, SSB_SPROM8_PA1LOB0, 0xFFFF, 0);
602 SPEX(pa1lob1, SSB_SPROM8_PA1LOB1, 0xFFFF, 0);
603 SPEX(pa1lob2, SSB_SPROM8_PA1LOB2, 0xFFFF, 0);
604 SPEX(pa1hib0, SSB_SPROM8_PA1HIB0, 0xFFFF, 0);
605 SPEX(pa1hib1, SSB_SPROM8_PA1HIB1, 0xFFFF, 0);
606 SPEX(pa1hib2, SSB_SPROM8_PA1HIB2, 0xFFFF, 0);
607 SPEX(cck2gpo, SSB_SPROM8_CCK2GPO, 0xFFFF, 0);
608 SPEX32(ofdm2gpo, SSB_SPROM8_OFDM2GPO, 0xFFFFFFFF, 0);
609 SPEX32(ofdm5glpo, SSB_SPROM8_OFDM5GLPO, 0xFFFFFFFF, 0);
610 SPEX32(ofdm5gpo, SSB_SPROM8_OFDM5GPO, 0xFFFFFFFF, 0);
611 SPEX32(ofdm5ghpo, SSB_SPROM8_OFDM5GHPO, 0xFFFFFFFF, 0);
612
613 /* Extract the antenna gain values. */
614 SPEX(antenna_gain.a0, SSB_SPROM8_AGAIN01,
615 SSB_SPROM8_AGAIN0, SSB_SPROM8_AGAIN0_SHIFT);
616 SPEX(antenna_gain.a1, SSB_SPROM8_AGAIN01,
617 SSB_SPROM8_AGAIN1, SSB_SPROM8_AGAIN1_SHIFT);
618 SPEX(antenna_gain.a2, SSB_SPROM8_AGAIN23,
619 SSB_SPROM8_AGAIN2, SSB_SPROM8_AGAIN2_SHIFT);
620 SPEX(antenna_gain.a3, SSB_SPROM8_AGAIN23,
621 SSB_SPROM8_AGAIN3, SSB_SPROM8_AGAIN3_SHIFT);
622
623 /* Extract cores power info info */
624 for (i = 0; i < ARRAY_SIZE(pwr_info_offset); i++) {
625 o = pwr_info_offset[i];
626 SPEX(core_pwr_info[i].itssi_2g, o + SSB_SROM8_2G_MAXP_ITSSI,
627 SSB_SPROM8_2G_ITSSI, SSB_SPROM8_2G_ITSSI_SHIFT);
628 SPEX(core_pwr_info[i].maxpwr_2g, o + SSB_SROM8_2G_MAXP_ITSSI,
629 SSB_SPROM8_2G_MAXP, 0);
630
631 SPEX(core_pwr_info[i].pa_2g[0], o + SSB_SROM8_2G_PA_0, ~0, 0);
632 SPEX(core_pwr_info[i].pa_2g[1], o + SSB_SROM8_2G_PA_1, ~0, 0);
633 SPEX(core_pwr_info[i].pa_2g[2], o + SSB_SROM8_2G_PA_2, ~0, 0);
634
635 SPEX(core_pwr_info[i].itssi_5g, o + SSB_SROM8_5G_MAXP_ITSSI,
636 SSB_SPROM8_5G_ITSSI, SSB_SPROM8_5G_ITSSI_SHIFT);
637 SPEX(core_pwr_info[i].maxpwr_5g, o + SSB_SROM8_5G_MAXP_ITSSI,
638 SSB_SPROM8_5G_MAXP, 0);
639 SPEX(core_pwr_info[i].maxpwr_5gh, o + SSB_SPROM8_5GHL_MAXP,
640 SSB_SPROM8_5GH_MAXP, 0);
641 SPEX(core_pwr_info[i].maxpwr_5gl, o + SSB_SPROM8_5GHL_MAXP,
642 SSB_SPROM8_5GL_MAXP, SSB_SPROM8_5GL_MAXP_SHIFT);
643
644 SPEX(core_pwr_info[i].pa_5gl[0], o + SSB_SROM8_5GL_PA_0, ~0, 0);
645 SPEX(core_pwr_info[i].pa_5gl[1], o + SSB_SROM8_5GL_PA_1, ~0, 0);
646 SPEX(core_pwr_info[i].pa_5gl[2], o + SSB_SROM8_5GL_PA_2, ~0, 0);
647 SPEX(core_pwr_info[i].pa_5g[0], o + SSB_SROM8_5G_PA_0, ~0, 0);
648 SPEX(core_pwr_info[i].pa_5g[1], o + SSB_SROM8_5G_PA_1, ~0, 0);
649 SPEX(core_pwr_info[i].pa_5g[2], o + SSB_SROM8_5G_PA_2, ~0, 0);
650 SPEX(core_pwr_info[i].pa_5gh[0], o + SSB_SROM8_5GH_PA_0, ~0, 0);
651 SPEX(core_pwr_info[i].pa_5gh[1], o + SSB_SROM8_5GH_PA_1, ~0, 0);
652 SPEX(core_pwr_info[i].pa_5gh[2], o + SSB_SROM8_5GH_PA_2, ~0, 0);
653 }
654
655 /* Extract FEM info */
656 SPEX(fem.ghz2.tssipos, SSB_SPROM8_FEM2G,
657 SSB_SROM8_FEM_TSSIPOS, SSB_SROM8_FEM_TSSIPOS_SHIFT);
658 SPEX(fem.ghz2.extpa_gain, SSB_SPROM8_FEM2G,
659 SSB_SROM8_FEM_EXTPA_GAIN, SSB_SROM8_FEM_EXTPA_GAIN_SHIFT);
660 SPEX(fem.ghz2.pdet_range, SSB_SPROM8_FEM2G,
661 SSB_SROM8_FEM_PDET_RANGE, SSB_SROM8_FEM_PDET_RANGE_SHIFT);
662 SPEX(fem.ghz2.tr_iso, SSB_SPROM8_FEM2G,
663 SSB_SROM8_FEM_TR_ISO, SSB_SROM8_FEM_TR_ISO_SHIFT);
664 SPEX(fem.ghz2.antswlut, SSB_SPROM8_FEM2G,
665 SSB_SROM8_FEM_ANTSWLUT, SSB_SROM8_FEM_ANTSWLUT_SHIFT);
666
667 SPEX(fem.ghz5.tssipos, SSB_SPROM8_FEM5G,
668 SSB_SROM8_FEM_TSSIPOS, SSB_SROM8_FEM_TSSIPOS_SHIFT);
669 SPEX(fem.ghz5.extpa_gain, SSB_SPROM8_FEM5G,
670 SSB_SROM8_FEM_EXTPA_GAIN, SSB_SROM8_FEM_EXTPA_GAIN_SHIFT);
671 SPEX(fem.ghz5.pdet_range, SSB_SPROM8_FEM5G,
672 SSB_SROM8_FEM_PDET_RANGE, SSB_SROM8_FEM_PDET_RANGE_SHIFT);
673 SPEX(fem.ghz5.tr_iso, SSB_SPROM8_FEM5G,
674 SSB_SROM8_FEM_TR_ISO, SSB_SROM8_FEM_TR_ISO_SHIFT);
675 SPEX(fem.ghz5.antswlut, SSB_SPROM8_FEM5G,
676 SSB_SROM8_FEM_ANTSWLUT, SSB_SROM8_FEM_ANTSWLUT_SHIFT);
677
678 SPEX(leddc_on_time, SSB_SPROM8_LEDDC, SSB_SPROM8_LEDDC_ON,
679 SSB_SPROM8_LEDDC_ON_SHIFT);
680 SPEX(leddc_off_time, SSB_SPROM8_LEDDC, SSB_SPROM8_LEDDC_OFF,
681 SSB_SPROM8_LEDDC_OFF_SHIFT);
682
683 SPEX(txchain, SSB_SPROM8_TXRXC, SSB_SPROM8_TXRXC_TXCHAIN,
684 SSB_SPROM8_TXRXC_TXCHAIN_SHIFT);
685 SPEX(rxchain, SSB_SPROM8_TXRXC, SSB_SPROM8_TXRXC_RXCHAIN,
686 SSB_SPROM8_TXRXC_RXCHAIN_SHIFT);
687 SPEX(antswitch, SSB_SPROM8_TXRXC, SSB_SPROM8_TXRXC_SWITCH,
688 SSB_SPROM8_TXRXC_SWITCH_SHIFT);
689
690 SPEX(opo, SSB_SPROM8_OFDM2GPO, 0x00ff, 0);
691
692 SPEX_ARRAY8(mcs2gpo, SSB_SPROM8_2G_MCSPO, ~0, 0);
693 SPEX_ARRAY8(mcs5gpo, SSB_SPROM8_5G_MCSPO, ~0, 0);
694 SPEX_ARRAY8(mcs5glpo, SSB_SPROM8_5GL_MCSPO, ~0, 0);
695 SPEX_ARRAY8(mcs5ghpo, SSB_SPROM8_5GH_MCSPO, ~0, 0);
696
697 SPEX(rawtempsense, SSB_SPROM8_RAWTS, SSB_SPROM8_RAWTS_RAWTEMP,
698 SSB_SPROM8_RAWTS_RAWTEMP_SHIFT);
699 SPEX(measpower, SSB_SPROM8_RAWTS, SSB_SPROM8_RAWTS_MEASPOWER,
700 SSB_SPROM8_RAWTS_MEASPOWER_SHIFT);
701 SPEX(tempsense_slope, SSB_SPROM8_OPT_CORRX,
702 SSB_SPROM8_OPT_CORRX_TEMP_SLOPE,
703 SSB_SPROM8_OPT_CORRX_TEMP_SLOPE_SHIFT);
704 SPEX(tempcorrx, SSB_SPROM8_OPT_CORRX, SSB_SPROM8_OPT_CORRX_TEMPCORRX,
705 SSB_SPROM8_OPT_CORRX_TEMPCORRX_SHIFT);
706 SPEX(tempsense_option, SSB_SPROM8_OPT_CORRX,
707 SSB_SPROM8_OPT_CORRX_TEMP_OPTION,
708 SSB_SPROM8_OPT_CORRX_TEMP_OPTION_SHIFT);
709 SPEX(freqoffset_corr, SSB_SPROM8_HWIQ_IQSWP,
710 SSB_SPROM8_HWIQ_IQSWP_FREQ_CORR,
711 SSB_SPROM8_HWIQ_IQSWP_FREQ_CORR_SHIFT);
712 SPEX(iqcal_swp_dis, SSB_SPROM8_HWIQ_IQSWP,
713 SSB_SPROM8_HWIQ_IQSWP_IQCAL_SWP,
714 SSB_SPROM8_HWIQ_IQSWP_IQCAL_SWP_SHIFT);
715 SPEX(hw_iqcal_en, SSB_SPROM8_HWIQ_IQSWP, SSB_SPROM8_HWIQ_IQSWP_HW_IQCAL,
716 SSB_SPROM8_HWIQ_IQSWP_HW_IQCAL_SHIFT);
717
718 SPEX(bw40po, SSB_SPROM8_BW40PO, ~0, 0);
719 SPEX(cddpo, SSB_SPROM8_CDDPO, ~0, 0);
720 SPEX(stbcpo, SSB_SPROM8_STBCPO, ~0, 0);
721 SPEX(bwduppo, SSB_SPROM8_BWDUPPO, ~0, 0);
722
723 SPEX(tempthresh, SSB_SPROM8_THERMAL, SSB_SPROM8_THERMAL_TRESH,
724 SSB_SPROM8_THERMAL_TRESH_SHIFT);
725 SPEX(tempoffset, SSB_SPROM8_THERMAL, SSB_SPROM8_THERMAL_OFFSET,
726 SSB_SPROM8_THERMAL_OFFSET_SHIFT);
727 SPEX(phycal_tempdelta, SSB_SPROM8_TEMPDELTA,
728 SSB_SPROM8_TEMPDELTA_PHYCAL,
729 SSB_SPROM8_TEMPDELTA_PHYCAL_SHIFT);
730 SPEX(temps_period, SSB_SPROM8_TEMPDELTA, SSB_SPROM8_TEMPDELTA_PERIOD,
731 SSB_SPROM8_TEMPDELTA_PERIOD_SHIFT);
732 SPEX(temps_hysteresis, SSB_SPROM8_TEMPDELTA,
733 SSB_SPROM8_TEMPDELTA_HYSTERESIS,
734 SSB_SPROM8_TEMPDELTA_HYSTERESIS_SHIFT);
735 sprom_extract_r458(out, in);
736
737 /* TODO - get remaining rev 8 stuff needed */
738}
739
740static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out,
741 const u16 *in, u16 size)
742{
743 memset(out, 0, sizeof(*out));
744
745 out->revision = in[size - 1] & 0x00FF;
746 ssb_dprintk(KERN_DEBUG PFX "SPROM revision %d detected.\n", out->revision);
747 memset(out->et0mac, 0xFF, 6); /* preset et0 and et1 mac */
748 memset(out->et1mac, 0xFF, 6);
749
750 if ((bus->chip_id & 0xFF00) == 0x4400) {
751 /* Workaround: The BCM44XX chip has a stupid revision
752 * number stored in the SPROM.
753 * Always extract r1. */
754 out->revision = 1;
755 ssb_dprintk(KERN_DEBUG PFX "SPROM treated as revision %d\n", out->revision);
756 }
757
758 switch (out->revision) {
759 case 1:
760 case 2:
761 case 3:
762 sprom_extract_r123(out, in);
763 break;
764 case 4:
765 case 5:
766 sprom_extract_r45(out, in);
767 break;
768 case 8:
769 sprom_extract_r8(out, in);
770 break;
771 default:
772 ssb_printk(KERN_WARNING PFX "Unsupported SPROM"
773 " revision %d detected. Will extract"
774 " v1\n", out->revision);
775 out->revision = 1;
776 sprom_extract_r123(out, in);
777 }
778
779 if (out->boardflags_lo == 0xFFFF)
780 out->boardflags_lo = 0; /* per specs */
781 if (out->boardflags_hi == 0xFFFF)
782 out->boardflags_hi = 0; /* per specs */
783
784 return 0;
785}
786
787static int ssb_pci_sprom_get(struct ssb_bus *bus,
788 struct ssb_sprom *sprom)
789{
790 int err;
791 u16 *buf;
792
793 if (!ssb_is_sprom_available(bus)) {
794 ssb_printk(KERN_ERR PFX "No SPROM available!\n");
795 return -ENODEV;
796 }
797 if (bus->chipco.dev) { /* can be unavailable! */
798 /*
799 * get SPROM offset: SSB_SPROM_BASE1 except for
800 * chipcommon rev >= 31 or chip ID is 0x4312 and
801 * chipcommon status & 3 == 2
802 */
803 if (bus->chipco.dev->id.revision >= 31)
804 bus->sprom_offset = SSB_SPROM_BASE31;
805 else if (bus->chip_id == 0x4312 &&
806 (bus->chipco.status & 0x03) == 2)
807 bus->sprom_offset = SSB_SPROM_BASE31;
808 else
809 bus->sprom_offset = SSB_SPROM_BASE1;
810 } else {
811 bus->sprom_offset = SSB_SPROM_BASE1;
812 }
813 ssb_dprintk(KERN_INFO PFX "SPROM offset is 0x%x\n", bus->sprom_offset);
814
815 buf = kcalloc(SSB_SPROMSIZE_WORDS_R123, sizeof(u16), GFP_KERNEL);
816 if (!buf)
817 return -ENOMEM;
818 bus->sprom_size = SSB_SPROMSIZE_WORDS_R123;
819 sprom_do_read(bus, buf);
820 err = sprom_check_crc(buf, bus->sprom_size);
821 if (err) {
822 /* try for a 440 byte SPROM - revision 4 and higher */
823 kfree(buf);
824 buf = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16),
825 GFP_KERNEL);
826 if (!buf)
827 return -ENOMEM;
828 bus->sprom_size = SSB_SPROMSIZE_WORDS_R4;
829 sprom_do_read(bus, buf);
830 err = sprom_check_crc(buf, bus->sprom_size);
831 if (err) {
832 /* All CRC attempts failed.
833 * Maybe there is no SPROM on the device?
834 * Now we ask the arch code if there is some sprom
835 * available for this device in some other storage */
836 err = ssb_fill_sprom_with_fallback(bus, sprom);
837 if (err) {
838 ssb_printk(KERN_WARNING PFX "WARNING: Using"
839 " fallback SPROM failed (err %d)\n",
840 err);
841 } else {
842 ssb_dprintk(KERN_DEBUG PFX "Using SPROM"
843 " revision %d provided by"
844 " platform.\n", sprom->revision);
845 err = 0;
846 goto out_free;
847 }
848 ssb_printk(KERN_WARNING PFX "WARNING: Invalid"
849 " SPROM CRC (corrupt SPROM)\n");
850 }
851 }
852 err = sprom_extract(bus, sprom, buf, bus->sprom_size);
853
854out_free:
855 kfree(buf);
856 return err;
857}
858
859static void ssb_pci_get_boardinfo(struct ssb_bus *bus,
860 struct ssb_boardinfo *bi)
861{
862 bi->vendor = bus->host_pci->subsystem_vendor;
863 bi->type = bus->host_pci->subsystem_device;
864}
865
866int ssb_pci_get_invariants(struct ssb_bus *bus,
867 struct ssb_init_invariants *iv)
868{
869 int err;
870
871 err = ssb_pci_sprom_get(bus, &iv->sprom);
872 if (err)
873 goto out;
874 ssb_pci_get_boardinfo(bus, &iv->boardinfo);
875
876out:
877 return err;
878}
879
880#ifdef CONFIG_SSB_DEBUG
881static int ssb_pci_assert_buspower(struct ssb_bus *bus)
882{
883 if (likely(bus->powered_up))
884 return 0;
885
886 printk(KERN_ERR PFX "FATAL ERROR: Bus powered down "
887 "while accessing PCI MMIO space\n");
888 if (bus->power_warn_count <= 10) {
889 bus->power_warn_count++;
890 dump_stack();
891 }
892
893 return -ENODEV;
894}
895#else /* DEBUG */
896static inline int ssb_pci_assert_buspower(struct ssb_bus *bus)
897{
898 return 0;
899}
900#endif /* DEBUG */
901
902static u8 ssb_pci_read8(struct ssb_device *dev, u16 offset)
903{
904 struct ssb_bus *bus = dev->bus;
905
906 if (unlikely(ssb_pci_assert_buspower(bus)))
907 return 0xFF;
908 if (unlikely(bus->mapped_device != dev)) {
909 if (unlikely(ssb_pci_switch_core(bus, dev)))
910 return 0xFF;
911 }
912 return ioread8(bus->mmio + offset);
913}
914
915static u16 ssb_pci_read16(struct ssb_device *dev, u16 offset)
916{
917 struct ssb_bus *bus = dev->bus;
918
919 if (unlikely(ssb_pci_assert_buspower(bus)))
920 return 0xFFFF;
921 if (unlikely(bus->mapped_device != dev)) {
922 if (unlikely(ssb_pci_switch_core(bus, dev)))
923 return 0xFFFF;
924 }
925 return ioread16(bus->mmio + offset);
926}
927
928static u32 ssb_pci_read32(struct ssb_device *dev, u16 offset)
929{
930 struct ssb_bus *bus = dev->bus;
931
932 if (unlikely(ssb_pci_assert_buspower(bus)))
933 return 0xFFFFFFFF;
934 if (unlikely(bus->mapped_device != dev)) {
935 if (unlikely(ssb_pci_switch_core(bus, dev)))
936 return 0xFFFFFFFF;
937 }
938 return ioread32(bus->mmio + offset);
939}
940
941#ifdef CONFIG_SSB_BLOCKIO
942static void ssb_pci_block_read(struct ssb_device *dev, void *buffer,
943 size_t count, u16 offset, u8 reg_width)
944{
945 struct ssb_bus *bus = dev->bus;
946 void __iomem *addr = bus->mmio + offset;
947
948 if (unlikely(ssb_pci_assert_buspower(bus)))
949 goto error;
950 if (unlikely(bus->mapped_device != dev)) {
951 if (unlikely(ssb_pci_switch_core(bus, dev)))
952 goto error;
953 }
954 switch (reg_width) {
955 case sizeof(u8):
956 ioread8_rep(addr, buffer, count);
957 break;
958 case sizeof(u16):
959 SSB_WARN_ON(count & 1);
960 ioread16_rep(addr, buffer, count >> 1);
961 break;
962 case sizeof(u32):
963 SSB_WARN_ON(count & 3);
964 ioread32_rep(addr, buffer, count >> 2);
965 break;
966 default:
967 SSB_WARN_ON(1);
968 }
969
970 return;
971error:
972 memset(buffer, 0xFF, count);
973}
974#endif /* CONFIG_SSB_BLOCKIO */
975
976static void ssb_pci_write8(struct ssb_device *dev, u16 offset, u8 value)
977{
978 struct ssb_bus *bus = dev->bus;
979
980 if (unlikely(ssb_pci_assert_buspower(bus)))
981 return;
982 if (unlikely(bus->mapped_device != dev)) {
983 if (unlikely(ssb_pci_switch_core(bus, dev)))
984 return;
985 }
986 iowrite8(value, bus->mmio + offset);
987}
988
989static void ssb_pci_write16(struct ssb_device *dev, u16 offset, u16 value)
990{
991 struct ssb_bus *bus = dev->bus;
992
993 if (unlikely(ssb_pci_assert_buspower(bus)))
994 return;
995 if (unlikely(bus->mapped_device != dev)) {
996 if (unlikely(ssb_pci_switch_core(bus, dev)))
997 return;
998 }
999 iowrite16(value, bus->mmio + offset);
1000}
1001
1002static void ssb_pci_write32(struct ssb_device *dev, u16 offset, u32 value)
1003{
1004 struct ssb_bus *bus = dev->bus;
1005
1006 if (unlikely(ssb_pci_assert_buspower(bus)))
1007 return;
1008 if (unlikely(bus->mapped_device != dev)) {
1009 if (unlikely(ssb_pci_switch_core(bus, dev)))
1010 return;
1011 }
1012 iowrite32(value, bus->mmio + offset);
1013}
1014
1015#ifdef CONFIG_SSB_BLOCKIO
1016static void ssb_pci_block_write(struct ssb_device *dev, const void *buffer,
1017 size_t count, u16 offset, u8 reg_width)
1018{
1019 struct ssb_bus *bus = dev->bus;
1020 void __iomem *addr = bus->mmio + offset;
1021
1022 if (unlikely(ssb_pci_assert_buspower(bus)))
1023 return;
1024 if (unlikely(bus->mapped_device != dev)) {
1025 if (unlikely(ssb_pci_switch_core(bus, dev)))
1026 return;
1027 }
1028 switch (reg_width) {
1029 case sizeof(u8):
1030 iowrite8_rep(addr, buffer, count);
1031 break;
1032 case sizeof(u16):
1033 SSB_WARN_ON(count & 1);
1034 iowrite16_rep(addr, buffer, count >> 1);
1035 break;
1036 case sizeof(u32):
1037 SSB_WARN_ON(count & 3);
1038 iowrite32_rep(addr, buffer, count >> 2);
1039 break;
1040 default:
1041 SSB_WARN_ON(1);
1042 }
1043}
1044#endif /* CONFIG_SSB_BLOCKIO */
1045
1046/* Not "static", as it's used in main.c */
1047const struct ssb_bus_ops ssb_pci_ops = {
1048 .read8 = ssb_pci_read8,
1049 .read16 = ssb_pci_read16,
1050 .read32 = ssb_pci_read32,
1051 .write8 = ssb_pci_write8,
1052 .write16 = ssb_pci_write16,
1053 .write32 = ssb_pci_write32,
1054#ifdef CONFIG_SSB_BLOCKIO
1055 .block_read = ssb_pci_block_read,
1056 .block_write = ssb_pci_block_write,
1057#endif
1058};
1059
1060static ssize_t ssb_pci_attr_sprom_show(struct device *pcidev,
1061 struct device_attribute *attr,
1062 char *buf)
1063{
1064 struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev);
1065 struct ssb_bus *bus;
1066
1067 bus = ssb_pci_dev_to_bus(pdev);
1068 if (!bus)
1069 return -ENODEV;
1070
1071 return ssb_attr_sprom_show(bus, buf, sprom_do_read);
1072}
1073
1074static ssize_t ssb_pci_attr_sprom_store(struct device *pcidev,
1075 struct device_attribute *attr,
1076 const char *buf, size_t count)
1077{
1078 struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev);
1079 struct ssb_bus *bus;
1080
1081 bus = ssb_pci_dev_to_bus(pdev);
1082 if (!bus)
1083 return -ENODEV;
1084
1085 return ssb_attr_sprom_store(bus, buf, count,
1086 sprom_check_crc, sprom_do_write);
1087}
1088
1089static DEVICE_ATTR(ssb_sprom, 0600,
1090 ssb_pci_attr_sprom_show,
1091 ssb_pci_attr_sprom_store);
1092
1093void ssb_pci_exit(struct ssb_bus *bus)
1094{
1095 struct pci_dev *pdev;
1096
1097 if (bus->bustype != SSB_BUSTYPE_PCI)
1098 return;
1099
1100 pdev = bus->host_pci;
1101 device_remove_file(&pdev->dev, &dev_attr_ssb_sprom);
1102}
1103
1104int ssb_pci_init(struct ssb_bus *bus)
1105{
1106 struct pci_dev *pdev;
1107 int err;
1108
1109 if (bus->bustype != SSB_BUSTYPE_PCI)
1110 return 0;
1111
1112 pdev = bus->host_pci;
1113 mutex_init(&bus->sprom_mutex);
1114 err = device_create_file(&pdev->dev, &dev_attr_ssb_sprom);
1115 if (err)
1116 goto out;
1117
1118out:
1119 return err;
1120}