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/slab.h>
21 #include <linux/pci.h>
22 #include <linux/delay.h>
24 #include "ssb_private.h"
27 /* Define the following to 1 to enable a printk on each coreswitch. */
28 #define SSB_VERBOSE_PCICORESWITCH_DEBUG 0
31 /* Lowlevel coreswitching */
32 int ssb_pci_switch_coreidx(struct ssb_bus
*bus
, u8 coreidx
)
39 err
= pci_write_config_dword(bus
->host_pci
, SSB_BAR0_WIN
,
40 (coreidx
* SSB_CORE_SIZE
)
44 err
= pci_read_config_dword(bus
->host_pci
, SSB_BAR0_WIN
,
48 cur_core
= (cur_core
- SSB_ENUM_BASE
)
50 if (cur_core
== coreidx
)
53 if (attempts
++ > SSB_BAR0_MAX_RETRIES
)
59 ssb_printk(KERN_ERR PFX
"Failed to switch to core %u\n", coreidx
);
63 int ssb_pci_switch_core(struct ssb_bus
*bus
,
64 struct ssb_device
*dev
)
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
),
76 spin_lock_irqsave(&bus
->bar_lock
, flags
);
77 err
= ssb_pci_switch_coreidx(bus
, dev
->core_index
);
79 bus
->mapped_device
= dev
;
80 spin_unlock_irqrestore(&bus
->bar_lock
, flags
);
85 /* Enable/disable the on board crystal oscillator and/or PLL. */
86 int ssb_pci_xtal(struct ssb_bus
*bus
, u32 what
, int turn_on
)
89 u32 in
, out
, outenable
;
92 if (bus
->bustype
!= SSB_BUSTYPE_PCI
)
95 err
= pci_read_config_dword(bus
->host_pci
, SSB_GPIO_IN
, &in
);
98 err
= pci_read_config_dword(bus
->host_pci
, SSB_GPIO_OUT
, &out
);
101 err
= pci_read_config_dword(bus
->host_pci
, SSB_GPIO_OUT_ENABLE
, &outenable
);
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.
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
)
118 err
= pci_write_config_dword(bus
->host_pci
, SSB_GPIO_OUT
, out
);
121 err
= pci_write_config_dword(bus
->host_pci
, SSB_GPIO_OUT_ENABLE
,
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
);
137 err
= pci_read_config_word(bus
->host_pci
, PCI_STATUS
, &pci_status
);
140 pci_status
&= ~PCI_STATUS_SIG_TARGET_ABORT
;
141 err
= pci_write_config_word(bus
->host_pci
, PCI_STATUS
, pci_status
);
145 if (what
& SSB_GPIO_XTAL
) {
146 /* Turn the crystal off */
147 out
&= ~SSB_GPIO_XTAL
;
149 if (what
& SSB_GPIO_PLL
) {
150 /* Turn the PLL off */
153 err
= pci_write_config_dword(bus
->host_pci
, SSB_GPIO_OUT
, out
);
156 err
= pci_write_config_dword(bus
->host_pci
, SSB_GPIO_OUT_ENABLE
, outenable
);
165 printk(KERN_ERR PFX
"Error: ssb_pci_xtal() could not access PCI config space!\n");
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)
182 static inline u8
ssb_crc8(u8 crc
, u8 data
)
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,
219 return t
[crc
^ data
];
222 static u8
ssb_sprom_crc(const u16
*sprom
, u16 size
)
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);
231 crc
= ssb_crc8(crc
, sprom
[size
- 1] & 0x00FF);
237 static int sprom_check_crc(const u16
*sprom
, size_t size
)
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
)
252 static int sprom_do_read(struct ssb_bus
*bus
, u16
*sprom
)
256 for (i
= 0; i
< bus
->sprom_size
; i
++)
257 sprom
[i
] = ioread16(bus
->mmio
+ bus
->sprom_offset
+ (i
* 2));
262 static int sprom_do_write(struct ssb_bus
*bus
, const u16
*sprom
)
264 struct pci_dev
*pdev
= bus
->host_pci
;
267 u16 size
= bus
->sprom_size
;
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
);
273 spromctl
|= SSB_SPROMCTL_WE
;
274 err
= pci_write_config_dword(pdev
, SSB_SPROMCTL
, spromctl
);
277 ssb_printk(KERN_NOTICE PFX
"[ 0%%");
279 for (i
= 0; i
< size
; i
++) {
282 else if (i
== size
/ 2)
284 else if (i
== (size
* 3) / 4)
288 writew(sprom
[i
], bus
->mmio
+ bus
->sprom_offset
+ (i
* 2));
292 err
= pci_read_config_dword(pdev
, SSB_SPROMCTL
, &spromctl
);
295 spromctl
&= ~SSB_SPROMCTL_WE
;
296 err
= pci_write_config_dword(pdev
, SSB_SPROMCTL
, spromctl
);
300 ssb_printk("100%% ]\n");
301 ssb_printk(KERN_NOTICE PFX
"SPROM written.\n");
305 ssb_printk(KERN_ERR PFX
"Could not access SPROM control register.\n");
309 static s8
r123_extract_antgain(u8 sprom_revision
, const u16
*in
,
315 v
= in
[SPOFF(SSB_SPROM1_AGAIN
)];
316 gain
= (v
& mask
) >> shift
;
318 gain
= 2; /* If unset use 2dBm */
319 if (sprom_revision
== 1) {
320 /* Convert to Q5.2 */
323 /* Q5.2 Fractional part is stored in 0xC0 */
324 gain
= ((gain
& 0xC0) >> 6) | ((gain
& 0x3F) << 2);
330 static void sprom_extract_r123(struct ssb_sprom
*out
, const u16
*in
)
337 if (out
->revision
== 3) /* rev 3 moved MAC */
338 loc
[0] = SSB_SPROM3_IL0MAC
;
340 loc
[0] = SSB_SPROM1_IL0MAC
;
341 loc
[1] = SSB_SPROM1_ET0MAC
;
342 loc
[2] = SSB_SPROM1_ET1MAC
;
344 for (i
= 0; i
< 3; i
++) {
345 v
= in
[SPOFF(loc
[0]) + i
];
346 *(((__be16
*)out
->il0mac
) + i
) = cpu_to_be16(v
);
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
);
353 for (i
= 0; i
< 3; i
++) {
354 v
= in
[SPOFF(loc
[2]) + i
];
355 *(((__be16
*)out
->et1mac
) + i
) = cpu_to_be16(v
);
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);
392 /* Extract the antenna gain values. */
393 gain
= r123_extract_antgain(out
->revision
, in
,
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
,
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
;
409 static void sprom_extract_r45(struct ssb_sprom
*out
, const u16
*in
)
415 if (out
->revision
== 4)
416 il0mac_offset
= SSB_SPROM4_IL0MAC
;
418 il0mac_offset
= SSB_SPROM5_IL0MAC
;
419 /* extract the MAC address */
420 for (i
= 0; i
< 3; i
++) {
421 v
= in
[SPOFF(il0mac_offset
) + i
];
422 *(((__be16
*)out
->il0mac
) + i
) = cpu_to_be16(v
);
424 SPEX(et0phyaddr
, SSB_SPROM4_ETHPHY
, SSB_SPROM4_ETHPHY_ET0A
, 0);
425 SPEX(et1phyaddr
, SSB_SPROM4_ETHPHY
, SSB_SPROM4_ETHPHY_ET1A
,
426 SSB_SPROM4_ETHPHY_ET1A_SHIFT
);
427 if (out
->revision
== 4) {
428 SPEX(country_code
, SSB_SPROM4_CCODE
, 0xFFFF, 0);
429 SPEX(boardflags_lo
, SSB_SPROM4_BFLLO
, 0xFFFF, 0);
430 SPEX(boardflags_hi
, SSB_SPROM4_BFLHI
, 0xFFFF, 0);
432 SPEX(country_code
, SSB_SPROM5_CCODE
, 0xFFFF, 0);
433 SPEX(boardflags_lo
, SSB_SPROM5_BFLLO
, 0xFFFF, 0);
434 SPEX(boardflags_hi
, SSB_SPROM5_BFLHI
, 0xFFFF, 0);
436 SPEX(ant_available_a
, SSB_SPROM4_ANTAVAIL
, SSB_SPROM4_ANTAVAIL_A
,
437 SSB_SPROM4_ANTAVAIL_A_SHIFT
);
438 SPEX(ant_available_bg
, SSB_SPROM4_ANTAVAIL
, SSB_SPROM4_ANTAVAIL_BG
,
439 SSB_SPROM4_ANTAVAIL_BG_SHIFT
);
440 SPEX(maxpwr_bg
, SSB_SPROM4_MAXP_BG
, SSB_SPROM4_MAXP_BG_MASK
, 0);
441 SPEX(itssi_bg
, SSB_SPROM4_MAXP_BG
, SSB_SPROM4_ITSSI_BG
,
442 SSB_SPROM4_ITSSI_BG_SHIFT
);
443 SPEX(maxpwr_a
, SSB_SPROM4_MAXP_A
, SSB_SPROM4_MAXP_A_MASK
, 0);
444 SPEX(itssi_a
, SSB_SPROM4_MAXP_A
, SSB_SPROM4_ITSSI_A
,
445 SSB_SPROM4_ITSSI_A_SHIFT
);
446 if (out
->revision
== 4) {
447 SPEX(gpio0
, SSB_SPROM4_GPIOA
, SSB_SPROM4_GPIOA_P0
, 0);
448 SPEX(gpio1
, SSB_SPROM4_GPIOA
, SSB_SPROM4_GPIOA_P1
,
449 SSB_SPROM4_GPIOA_P1_SHIFT
);
450 SPEX(gpio2
, SSB_SPROM4_GPIOB
, SSB_SPROM4_GPIOB_P2
, 0);
451 SPEX(gpio3
, SSB_SPROM4_GPIOB
, SSB_SPROM4_GPIOB_P3
,
452 SSB_SPROM4_GPIOB_P3_SHIFT
);
454 SPEX(gpio0
, SSB_SPROM5_GPIOA
, SSB_SPROM5_GPIOA_P0
, 0);
455 SPEX(gpio1
, SSB_SPROM5_GPIOA
, SSB_SPROM5_GPIOA_P1
,
456 SSB_SPROM5_GPIOA_P1_SHIFT
);
457 SPEX(gpio2
, SSB_SPROM5_GPIOB
, SSB_SPROM5_GPIOB_P2
, 0);
458 SPEX(gpio3
, SSB_SPROM5_GPIOB
, SSB_SPROM5_GPIOB_P3
,
459 SSB_SPROM5_GPIOB_P3_SHIFT
);
462 /* Extract the antenna gain values. */
463 SPEX(antenna_gain
.ghz24
.a0
, SSB_SPROM4_AGAIN01
,
464 SSB_SPROM4_AGAIN0
, SSB_SPROM4_AGAIN0_SHIFT
);
465 SPEX(antenna_gain
.ghz24
.a1
, SSB_SPROM4_AGAIN01
,
466 SSB_SPROM4_AGAIN1
, SSB_SPROM4_AGAIN1_SHIFT
);
467 SPEX(antenna_gain
.ghz24
.a2
, SSB_SPROM4_AGAIN23
,
468 SSB_SPROM4_AGAIN2
, SSB_SPROM4_AGAIN2_SHIFT
);
469 SPEX(antenna_gain
.ghz24
.a3
, SSB_SPROM4_AGAIN23
,
470 SSB_SPROM4_AGAIN3
, SSB_SPROM4_AGAIN3_SHIFT
);
471 memcpy(&out
->antenna_gain
.ghz5
, &out
->antenna_gain
.ghz24
,
472 sizeof(out
->antenna_gain
.ghz5
));
474 /* TODO - get remaining rev 4 stuff needed */
477 static void sprom_extract_r8(struct ssb_sprom
*out
, const u16
*in
)
482 /* extract the MAC address */
483 for (i
= 0; i
< 3; i
++) {
484 v
= in
[SPOFF(SSB_SPROM8_IL0MAC
) + i
];
485 *(((__be16
*)out
->il0mac
) + i
) = cpu_to_be16(v
);
487 SPEX(country_code
, SSB_SPROM8_CCODE
, 0xFFFF, 0);
488 SPEX(boardflags_lo
, SSB_SPROM8_BFLLO
, 0xFFFF, 0);
489 SPEX(boardflags_hi
, SSB_SPROM8_BFLHI
, 0xFFFF, 0);
490 SPEX(boardflags2_lo
, SSB_SPROM8_BFL2LO
, 0xFFFF, 0);
491 SPEX(boardflags2_hi
, SSB_SPROM8_BFL2HI
, 0xFFFF, 0);
492 SPEX(ant_available_a
, SSB_SPROM8_ANTAVAIL
, SSB_SPROM8_ANTAVAIL_A
,
493 SSB_SPROM8_ANTAVAIL_A_SHIFT
);
494 SPEX(ant_available_bg
, SSB_SPROM8_ANTAVAIL
, SSB_SPROM8_ANTAVAIL_BG
,
495 SSB_SPROM8_ANTAVAIL_BG_SHIFT
);
496 SPEX(maxpwr_bg
, SSB_SPROM8_MAXP_BG
, SSB_SPROM8_MAXP_BG_MASK
, 0);
497 SPEX(itssi_bg
, SSB_SPROM8_MAXP_BG
, SSB_SPROM8_ITSSI_BG
,
498 SSB_SPROM8_ITSSI_BG_SHIFT
);
499 SPEX(maxpwr_a
, SSB_SPROM8_MAXP_A
, SSB_SPROM8_MAXP_A_MASK
, 0);
500 SPEX(itssi_a
, SSB_SPROM8_MAXP_A
, SSB_SPROM8_ITSSI_A
,
501 SSB_SPROM8_ITSSI_A_SHIFT
);
502 SPEX(maxpwr_ah
, SSB_SPROM8_MAXP_AHL
, SSB_SPROM8_MAXP_AH_MASK
, 0);
503 SPEX(maxpwr_al
, SSB_SPROM8_MAXP_AHL
, SSB_SPROM8_MAXP_AL_MASK
,
504 SSB_SPROM8_MAXP_AL_SHIFT
);
505 SPEX(gpio0
, SSB_SPROM8_GPIOA
, SSB_SPROM8_GPIOA_P0
, 0);
506 SPEX(gpio1
, SSB_SPROM8_GPIOA
, SSB_SPROM8_GPIOA_P1
,
507 SSB_SPROM8_GPIOA_P1_SHIFT
);
508 SPEX(gpio2
, SSB_SPROM8_GPIOB
, SSB_SPROM8_GPIOB_P2
, 0);
509 SPEX(gpio3
, SSB_SPROM8_GPIOB
, SSB_SPROM8_GPIOB_P3
,
510 SSB_SPROM8_GPIOB_P3_SHIFT
);
511 SPEX(tri2g
, SSB_SPROM8_TRI25G
, SSB_SPROM8_TRI2G
, 0);
512 SPEX(tri5g
, SSB_SPROM8_TRI25G
, SSB_SPROM8_TRI5G
,
513 SSB_SPROM8_TRI5G_SHIFT
);
514 SPEX(tri5gl
, SSB_SPROM8_TRI5GHL
, SSB_SPROM8_TRI5GL
, 0);
515 SPEX(tri5gh
, SSB_SPROM8_TRI5GHL
, SSB_SPROM8_TRI5GH
,
516 SSB_SPROM8_TRI5GH_SHIFT
);
517 SPEX(rxpo2g
, SSB_SPROM8_RXPO
, SSB_SPROM8_RXPO2G
, 0);
518 SPEX(rxpo5g
, SSB_SPROM8_RXPO
, SSB_SPROM8_RXPO5G
,
519 SSB_SPROM8_RXPO5G_SHIFT
);
520 SPEX(rssismf2g
, SSB_SPROM8_RSSIPARM2G
, SSB_SPROM8_RSSISMF2G
, 0);
521 SPEX(rssismc2g
, SSB_SPROM8_RSSIPARM2G
, SSB_SPROM8_RSSISMC2G
,
522 SSB_SPROM8_RSSISMC2G_SHIFT
);
523 SPEX(rssisav2g
, SSB_SPROM8_RSSIPARM2G
, SSB_SPROM8_RSSISAV2G
,
524 SSB_SPROM8_RSSISAV2G_SHIFT
);
525 SPEX(bxa2g
, SSB_SPROM8_RSSIPARM2G
, SSB_SPROM8_BXA2G
,
526 SSB_SPROM8_BXA2G_SHIFT
);
527 SPEX(rssismf5g
, SSB_SPROM8_RSSIPARM5G
, SSB_SPROM8_RSSISMF5G
, 0);
528 SPEX(rssismc5g
, SSB_SPROM8_RSSIPARM5G
, SSB_SPROM8_RSSISMC5G
,
529 SSB_SPROM8_RSSISMC5G_SHIFT
);
530 SPEX(rssisav5g
, SSB_SPROM8_RSSIPARM5G
, SSB_SPROM8_RSSISAV5G
,
531 SSB_SPROM8_RSSISAV5G_SHIFT
);
532 SPEX(bxa5g
, SSB_SPROM8_RSSIPARM5G
, SSB_SPROM8_BXA5G
,
533 SSB_SPROM8_BXA5G_SHIFT
);
534 SPEX(pa0b0
, SSB_SPROM8_PA0B0
, 0xFFFF, 0);
535 SPEX(pa0b1
, SSB_SPROM8_PA0B1
, 0xFFFF, 0);
536 SPEX(pa0b2
, SSB_SPROM8_PA0B2
, 0xFFFF, 0);
537 SPEX(pa1b0
, SSB_SPROM8_PA1B0
, 0xFFFF, 0);
538 SPEX(pa1b1
, SSB_SPROM8_PA1B1
, 0xFFFF, 0);
539 SPEX(pa1b2
, SSB_SPROM8_PA1B2
, 0xFFFF, 0);
540 SPEX(pa1lob0
, SSB_SPROM8_PA1LOB0
, 0xFFFF, 0);
541 SPEX(pa1lob1
, SSB_SPROM8_PA1LOB1
, 0xFFFF, 0);
542 SPEX(pa1lob2
, SSB_SPROM8_PA1LOB2
, 0xFFFF, 0);
543 SPEX(pa1hib0
, SSB_SPROM8_PA1HIB0
, 0xFFFF, 0);
544 SPEX(pa1hib1
, SSB_SPROM8_PA1HIB1
, 0xFFFF, 0);
545 SPEX(pa1hib2
, SSB_SPROM8_PA1HIB2
, 0xFFFF, 0);
546 SPEX(cck2gpo
, SSB_SPROM8_CCK2GPO
, 0xFFFF, 0);
547 SPEX32(ofdm2gpo
, SSB_SPROM8_OFDM2GPO
, 0xFFFFFFFF, 0);
548 SPEX32(ofdm5glpo
, SSB_SPROM8_OFDM5GLPO
, 0xFFFFFFFF, 0);
549 SPEX32(ofdm5gpo
, SSB_SPROM8_OFDM5GPO
, 0xFFFFFFFF, 0);
550 SPEX32(ofdm5ghpo
, SSB_SPROM8_OFDM5GHPO
, 0xFFFFFFFF, 0);
552 /* Extract the antenna gain values. */
553 SPEX(antenna_gain
.ghz24
.a0
, SSB_SPROM8_AGAIN01
,
554 SSB_SPROM8_AGAIN0
, SSB_SPROM8_AGAIN0_SHIFT
);
555 SPEX(antenna_gain
.ghz24
.a1
, SSB_SPROM8_AGAIN01
,
556 SSB_SPROM8_AGAIN1
, SSB_SPROM8_AGAIN1_SHIFT
);
557 SPEX(antenna_gain
.ghz24
.a2
, SSB_SPROM8_AGAIN23
,
558 SSB_SPROM8_AGAIN2
, SSB_SPROM8_AGAIN2_SHIFT
);
559 SPEX(antenna_gain
.ghz24
.a3
, SSB_SPROM8_AGAIN23
,
560 SSB_SPROM8_AGAIN3
, SSB_SPROM8_AGAIN3_SHIFT
);
561 memcpy(&out
->antenna_gain
.ghz5
, &out
->antenna_gain
.ghz24
,
562 sizeof(out
->antenna_gain
.ghz5
));
564 /* TODO - get remaining rev 8 stuff needed */
567 static int sprom_extract(struct ssb_bus
*bus
, struct ssb_sprom
*out
,
568 const u16
*in
, u16 size
)
570 memset(out
, 0, sizeof(*out
));
572 out
->revision
= in
[size
- 1] & 0x00FF;
573 ssb_dprintk(KERN_DEBUG PFX
"SPROM revision %d detected.\n", out
->revision
);
574 memset(out
->et0mac
, 0xFF, 6); /* preset et0 and et1 mac */
575 memset(out
->et1mac
, 0xFF, 6);
576 if ((bus
->chip_id
& 0xFF00) == 0x4400) {
578 sprom_extract_r123(out
, in
);
579 } else if (bus
->chip_id
== 0x4321) {
580 /* the BCM4328 has a chipid == 0x4321 and a rev 4 SPROM */
582 sprom_extract_r45(out
, in
);
584 switch (out
->revision
) {
588 sprom_extract_r123(out
, in
);
592 sprom_extract_r45(out
, in
);
595 sprom_extract_r8(out
, in
);
598 ssb_printk(KERN_WARNING PFX
"Unsupported SPROM"
599 " revision %d detected. Will extract"
600 " v1\n", out
->revision
);
602 sprom_extract_r123(out
, in
);
606 if (out
->boardflags_lo
== 0xFFFF)
607 out
->boardflags_lo
= 0; /* per specs */
608 if (out
->boardflags_hi
== 0xFFFF)
609 out
->boardflags_hi
= 0; /* per specs */
614 static int ssb_pci_sprom_get(struct ssb_bus
*bus
,
615 struct ssb_sprom
*sprom
)
617 const struct ssb_sprom
*fallback
;
621 if (!ssb_is_sprom_available(bus
)) {
622 ssb_printk(KERN_ERR PFX
"No SPROM available!\n");
625 if (bus
->chipco
.dev
) { /* can be unavailible! */
627 * get SPROM offset: SSB_SPROM_BASE1 except for
628 * chipcommon rev >= 31 or chip ID is 0x4312 and
629 * chipcommon status & 3 == 2
631 if (bus
->chipco
.dev
->id
.revision
>= 31)
632 bus
->sprom_offset
= SSB_SPROM_BASE31
;
633 else if (bus
->chip_id
== 0x4312 &&
634 (bus
->chipco
.status
& 0x03) == 2)
635 bus
->sprom_offset
= SSB_SPROM_BASE31
;
637 bus
->sprom_offset
= SSB_SPROM_BASE1
;
639 bus
->sprom_offset
= SSB_SPROM_BASE1
;
641 ssb_dprintk(KERN_INFO PFX
"SPROM offset is 0x%x\n", bus
->sprom_offset
);
643 buf
= kcalloc(SSB_SPROMSIZE_WORDS_R123
, sizeof(u16
), GFP_KERNEL
);
646 bus
->sprom_size
= SSB_SPROMSIZE_WORDS_R123
;
647 sprom_do_read(bus
, buf
);
648 err
= sprom_check_crc(buf
, bus
->sprom_size
);
650 /* try for a 440 byte SPROM - revision 4 and higher */
652 buf
= kcalloc(SSB_SPROMSIZE_WORDS_R4
, sizeof(u16
),
656 bus
->sprom_size
= SSB_SPROMSIZE_WORDS_R4
;
657 sprom_do_read(bus
, buf
);
658 err
= sprom_check_crc(buf
, bus
->sprom_size
);
660 /* All CRC attempts failed.
661 * Maybe there is no SPROM on the device?
662 * If we have a fallback, use that. */
663 fallback
= ssb_get_fallback_sprom();
665 memcpy(sprom
, fallback
, sizeof(*sprom
));
669 ssb_printk(KERN_WARNING PFX
"WARNING: Invalid"
670 " SPROM CRC (corrupt SPROM)\n");
673 err
= sprom_extract(bus
, sprom
, buf
, bus
->sprom_size
);
681 static void ssb_pci_get_boardinfo(struct ssb_bus
*bus
,
682 struct ssb_boardinfo
*bi
)
684 pci_read_config_word(bus
->host_pci
, PCI_SUBSYSTEM_VENDOR_ID
,
686 pci_read_config_word(bus
->host_pci
, PCI_SUBSYSTEM_ID
,
688 pci_read_config_word(bus
->host_pci
, PCI_REVISION_ID
,
692 int ssb_pci_get_invariants(struct ssb_bus
*bus
,
693 struct ssb_init_invariants
*iv
)
697 err
= ssb_pci_sprom_get(bus
, &iv
->sprom
);
700 ssb_pci_get_boardinfo(bus
, &iv
->boardinfo
);
706 #ifdef CONFIG_SSB_DEBUG
707 static int ssb_pci_assert_buspower(struct ssb_bus
*bus
)
709 if (likely(bus
->powered_up
))
712 printk(KERN_ERR PFX
"FATAL ERROR: Bus powered down "
713 "while accessing PCI MMIO space\n");
714 if (bus
->power_warn_count
<= 10) {
715 bus
->power_warn_count
++;
722 static inline int ssb_pci_assert_buspower(struct ssb_bus
*bus
)
728 static u8
ssb_pci_read8(struct ssb_device
*dev
, u16 offset
)
730 struct ssb_bus
*bus
= dev
->bus
;
732 if (unlikely(ssb_pci_assert_buspower(bus
)))
734 if (unlikely(bus
->mapped_device
!= dev
)) {
735 if (unlikely(ssb_pci_switch_core(bus
, dev
)))
738 return ioread8(bus
->mmio
+ offset
);
741 static u16
ssb_pci_read16(struct ssb_device
*dev
, u16 offset
)
743 struct ssb_bus
*bus
= dev
->bus
;
745 if (unlikely(ssb_pci_assert_buspower(bus
)))
747 if (unlikely(bus
->mapped_device
!= dev
)) {
748 if (unlikely(ssb_pci_switch_core(bus
, dev
)))
751 return ioread16(bus
->mmio
+ offset
);
754 static u32
ssb_pci_read32(struct ssb_device
*dev
, u16 offset
)
756 struct ssb_bus
*bus
= dev
->bus
;
758 if (unlikely(ssb_pci_assert_buspower(bus
)))
760 if (unlikely(bus
->mapped_device
!= dev
)) {
761 if (unlikely(ssb_pci_switch_core(bus
, dev
)))
764 return ioread32(bus
->mmio
+ offset
);
767 #ifdef CONFIG_SSB_BLOCKIO
768 static void ssb_pci_block_read(struct ssb_device
*dev
, void *buffer
,
769 size_t count
, u16 offset
, u8 reg_width
)
771 struct ssb_bus
*bus
= dev
->bus
;
772 void __iomem
*addr
= bus
->mmio
+ offset
;
774 if (unlikely(ssb_pci_assert_buspower(bus
)))
776 if (unlikely(bus
->mapped_device
!= dev
)) {
777 if (unlikely(ssb_pci_switch_core(bus
, dev
)))
782 ioread8_rep(addr
, buffer
, count
);
785 SSB_WARN_ON(count
& 1);
786 ioread16_rep(addr
, buffer
, count
>> 1);
789 SSB_WARN_ON(count
& 3);
790 ioread32_rep(addr
, buffer
, count
>> 2);
798 memset(buffer
, 0xFF, count
);
800 #endif /* CONFIG_SSB_BLOCKIO */
802 static void ssb_pci_write8(struct ssb_device
*dev
, u16 offset
, u8 value
)
804 struct ssb_bus
*bus
= dev
->bus
;
806 if (unlikely(ssb_pci_assert_buspower(bus
)))
808 if (unlikely(bus
->mapped_device
!= dev
)) {
809 if (unlikely(ssb_pci_switch_core(bus
, dev
)))
812 iowrite8(value
, bus
->mmio
+ offset
);
815 static void ssb_pci_write16(struct ssb_device
*dev
, u16 offset
, u16 value
)
817 struct ssb_bus
*bus
= dev
->bus
;
819 if (unlikely(ssb_pci_assert_buspower(bus
)))
821 if (unlikely(bus
->mapped_device
!= dev
)) {
822 if (unlikely(ssb_pci_switch_core(bus
, dev
)))
825 iowrite16(value
, bus
->mmio
+ offset
);
828 static void ssb_pci_write32(struct ssb_device
*dev
, u16 offset
, u32 value
)
830 struct ssb_bus
*bus
= dev
->bus
;
832 if (unlikely(ssb_pci_assert_buspower(bus
)))
834 if (unlikely(bus
->mapped_device
!= dev
)) {
835 if (unlikely(ssb_pci_switch_core(bus
, dev
)))
838 iowrite32(value
, bus
->mmio
+ offset
);
841 #ifdef CONFIG_SSB_BLOCKIO
842 static void ssb_pci_block_write(struct ssb_device
*dev
, const void *buffer
,
843 size_t count
, u16 offset
, u8 reg_width
)
845 struct ssb_bus
*bus
= dev
->bus
;
846 void __iomem
*addr
= bus
->mmio
+ offset
;
848 if (unlikely(ssb_pci_assert_buspower(bus
)))
850 if (unlikely(bus
->mapped_device
!= dev
)) {
851 if (unlikely(ssb_pci_switch_core(bus
, dev
)))
856 iowrite8_rep(addr
, buffer
, count
);
859 SSB_WARN_ON(count
& 1);
860 iowrite16_rep(addr
, buffer
, count
>> 1);
863 SSB_WARN_ON(count
& 3);
864 iowrite32_rep(addr
, buffer
, count
>> 2);
870 #endif /* CONFIG_SSB_BLOCKIO */
872 /* Not "static", as it's used in main.c */
873 const struct ssb_bus_ops ssb_pci_ops
= {
874 .read8
= ssb_pci_read8
,
875 .read16
= ssb_pci_read16
,
876 .read32
= ssb_pci_read32
,
877 .write8
= ssb_pci_write8
,
878 .write16
= ssb_pci_write16
,
879 .write32
= ssb_pci_write32
,
880 #ifdef CONFIG_SSB_BLOCKIO
881 .block_read
= ssb_pci_block_read
,
882 .block_write
= ssb_pci_block_write
,
886 static ssize_t
ssb_pci_attr_sprom_show(struct device
*pcidev
,
887 struct device_attribute
*attr
,
890 struct pci_dev
*pdev
= container_of(pcidev
, struct pci_dev
, dev
);
893 bus
= ssb_pci_dev_to_bus(pdev
);
897 return ssb_attr_sprom_show(bus
, buf
, sprom_do_read
);
900 static ssize_t
ssb_pci_attr_sprom_store(struct device
*pcidev
,
901 struct device_attribute
*attr
,
902 const char *buf
, size_t count
)
904 struct pci_dev
*pdev
= container_of(pcidev
, struct pci_dev
, dev
);
907 bus
= ssb_pci_dev_to_bus(pdev
);
911 return ssb_attr_sprom_store(bus
, buf
, count
,
912 sprom_check_crc
, sprom_do_write
);
915 static DEVICE_ATTR(ssb_sprom
, 0600,
916 ssb_pci_attr_sprom_show
,
917 ssb_pci_attr_sprom_store
);
919 void ssb_pci_exit(struct ssb_bus
*bus
)
921 struct pci_dev
*pdev
;
923 if (bus
->bustype
!= SSB_BUSTYPE_PCI
)
926 pdev
= bus
->host_pci
;
927 device_remove_file(&pdev
->dev
, &dev_attr_ssb_sprom
);
930 int ssb_pci_init(struct ssb_bus
*bus
)
932 struct pci_dev
*pdev
;
935 if (bus
->bustype
!= SSB_BUSTYPE_PCI
)
938 pdev
= bus
->host_pci
;
939 mutex_init(&bus
->sprom_mutex
);
940 err
= device_create_file(&pdev
->dev
, &dev_attr_ssb_sprom
);