1 /*
2 * Copyright (c) 2010 Broadcom Corporation
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 *
16 * File contents: support functions for PCI/PCIe
17 */
18
19 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
20
21 #include <linux/delay.h>
22 #include <linux/pci.h>
23
24 #include <defs.h>
25 #include <chipcommon.h>
26 #include <brcmu_utils.h>
27 #include <brcm_hw_ids.h>
28 #include <soc.h>
29 #include "types.h"
30 #include "pub.h"
31 #include "pmu.h"
32 #include "srom.h"
33 #include "nicpci.h"
34 #include "aiutils.h"
35
36 /* slow_clk_ctl */
37 /* slow clock source mask */
38 #define SCC_SS_MASK 0x00000007
39 /* source of slow clock is LPO */
40 #define SCC_SS_LPO 0x00000000
41 /* source of slow clock is crystal */
42 #define SCC_SS_XTAL 0x00000001
43 /* source of slow clock is PCI */
44 #define SCC_SS_PCI 0x00000002
45 /* LPOFreqSel, 1: 160Khz, 0: 32KHz */
46 #define SCC_LF 0x00000200
47 /* LPOPowerDown, 1: LPO is disabled, 0: LPO is enabled */
48 #define SCC_LP 0x00000400
49 /* ForceSlowClk, 1: sb/cores running on slow clock, 0: power logic control */
50 #define SCC_FS 0x00000800
51 /* IgnorePllOffReq, 1/0:
52 * power logic ignores/honors PLL clock disable requests from core
53 */
54 #define SCC_IP 0x00001000
55 /* XtalControlEn, 1/0:
56 * power logic does/doesn't disable crystal when appropriate
57 */
58 #define SCC_XC 0x00002000
59 /* XtalPU (RO), 1/0: crystal running/disabled */
60 #define SCC_XP 0x00004000
61 /* ClockDivider (SlowClk = 1/(4+divisor)) */
62 #define SCC_CD_MASK 0xffff0000
63 #define SCC_CD_SHIFT 16
64
65 /* system_clk_ctl */
66 /* ILPen: Enable Idle Low Power */
67 #define SYCC_IE 0x00000001
68 /* ALPen: Enable Active Low Power */
69 #define SYCC_AE 0x00000002
70 /* ForcePLLOn */
71 #define SYCC_FP 0x00000004
72 /* Force ALP (or HT if ALPen is not set */
73 #define SYCC_AR 0x00000008
74 /* Force HT */
75 #define SYCC_HR 0x00000010
76 /* ClkDiv (ILP = 1/(4 * (divisor + 1)) */
77 #define SYCC_CD_MASK 0xffff0000
78 #define SYCC_CD_SHIFT 16
79
80 #define CST4329_SPROM_OTP_SEL_MASK 0x00000003
81 /* OTP is powered up, use def. CIS, no SPROM */
82 #define CST4329_DEFCIS_SEL 0
83 /* OTP is powered up, SPROM is present */
84 #define CST4329_SPROM_SEL 1
85 /* OTP is powered up, no SPROM */
86 #define CST4329_OTP_SEL 2
87 /* OTP is powered down, SPROM is present */
88 #define CST4329_OTP_PWRDN 3
89
90 #define CST4329_SPI_SDIO_MODE_MASK 0x00000004
91 #define CST4329_SPI_SDIO_MODE_SHIFT 2
92
93 /* 43224 chip-specific ChipControl register bits */
94 #define CCTRL43224_GPIO_TOGGLE 0x8000
95 /* 12 mA drive strength */
96 #define CCTRL_43224A0_12MA_LED_DRIVE 0x00F000F0
97 /* 12 mA drive strength for later 43224s */
98 #define CCTRL_43224B0_12MA_LED_DRIVE 0xF0
99
100 /* 43236 Chip specific ChipStatus register bits */
101 #define CST43236_SFLASH_MASK 0x00000040
102 #define CST43236_OTP_MASK 0x00000080
103 #define CST43236_HSIC_MASK 0x00000100 /* USB/HSIC */
104 #define CST43236_BP_CLK 0x00000200 /* 120/96Mbps */
105 #define CST43236_BOOT_MASK 0x00001800
106 #define CST43236_BOOT_SHIFT 11
107 #define CST43236_BOOT_FROM_SRAM 0 /* boot from SRAM, ARM in reset */
108 #define CST43236_BOOT_FROM_ROM 1 /* boot from ROM */
109 #define CST43236_BOOT_FROM_FLASH 2 /* boot from FLASH */
110 #define CST43236_BOOT_FROM_INVALID 3
111
112 /* 4331 chip-specific ChipControl register bits */
113 /* 0 disable */
114 #define CCTRL4331_BT_COEXIST (1<<0)
115 /* 0 SECI is disabled (JTAG functional) */
116 #define CCTRL4331_SECI (1<<1)
117 /* 0 disable */
118 #define CCTRL4331_EXT_LNA (1<<2)
119 /* sprom/gpio13-15 mux */
120 #define CCTRL4331_SPROM_GPIO13_15 (1<<3)
121 /* 0 ext pa disable, 1 ext pa enabled */
122 #define CCTRL4331_EXTPA_EN (1<<4)
123 /* set drive out GPIO_CLK on sprom_cs pin */
124 #define CCTRL4331_GPIOCLK_ON_SPROMCS (1<<5)
125 /* use sprom_cs pin as PCIE mdio interface */
126 #define CCTRL4331_PCIE_MDIO_ON_SPROMCS (1<<6)
127 /* aband extpa will be at gpio2/5 and sprom_dout */
128 #define CCTRL4331_EXTPA_ON_GPIO2_5 (1<<7)
129 /* override core control on pipe_AuxClkEnable */
130 #define CCTRL4331_OVR_PIPEAUXCLKEN (1<<8)
131 /* override core control on pipe_AuxPowerDown */
132 #define CCTRL4331_OVR_PIPEAUXPWRDOWN (1<<9)
133 /* pcie_auxclkenable */
134 #define CCTRL4331_PCIE_AUXCLKEN (1<<10)
135 /* pcie_pipe_pllpowerdown */
136 #define CCTRL4331_PCIE_PIPE_PLLDOWN (1<<11)
137 /* enable bt_shd0 at gpio4 */
138 #define CCTRL4331_BT_SHD0_ON_GPIO4 (1<<16)
139 /* enable bt_shd1 at gpio5 */
140 #define CCTRL4331_BT_SHD1_ON_GPIO5 (1<<17)
141
142 /* 4331 Chip specific ChipStatus register bits */
143 /* crystal frequency 20/40Mhz */
144 #define CST4331_XTAL_FREQ 0x00000001
145 #define CST4331_SPROM_PRESENT 0x00000002
146 #define CST4331_OTP_PRESENT 0x00000004
147 #define CST4331_LDO_RF 0x00000008
148 #define CST4331_LDO_PAR 0x00000010
149
150 /* 4319 chip-specific ChipStatus register bits */
151 #define CST4319_SPI_CPULESSUSB 0x00000001
152 #define CST4319_SPI_CLK_POL 0x00000002
153 #define CST4319_SPI_CLK_PH 0x00000008
154 /* gpio [7:6], SDIO CIS selection */
155 #define CST4319_SPROM_OTP_SEL_MASK 0x000000c0
156 #define CST4319_SPROM_OTP_SEL_SHIFT 6
157 /* use default CIS, OTP is powered up */
158 #define CST4319_DEFCIS_SEL 0x00000000
159 /* use SPROM, OTP is powered up */
160 #define CST4319_SPROM_SEL 0x00000040
161 /* use OTP, OTP is powered up */
162 #define CST4319_OTP_SEL 0x00000080
163 /* use SPROM, OTP is powered down */
164 #define CST4319_OTP_PWRDN 0x000000c0
165 /* gpio [8], sdio/usb mode */
166 #define CST4319_SDIO_USB_MODE 0x00000100
167 #define CST4319_REMAP_SEL_MASK 0x00000600
168 #define CST4319_ILPDIV_EN 0x00000800
169 #define CST4319_XTAL_PD_POL 0x00001000
170 #define CST4319_LPO_SEL 0x00002000
171 #define CST4319_RES_INIT_MODE 0x0000c000
172 /* PALDO is configured with external PNP */
173 #define CST4319_PALDO_EXTPNP 0x00010000
174 #define CST4319_CBUCK_MODE_MASK 0x00060000
175 #define CST4319_CBUCK_MODE_BURST 0x00020000
176 #define CST4319_CBUCK_MODE_LPBURST 0x00060000
177 #define CST4319_RCAL_VALID 0x01000000
178 #define CST4319_RCAL_VALUE_MASK 0x3e000000
179 #define CST4319_RCAL_VALUE_SHIFT 25
180
181 /* 4336 chip-specific ChipStatus register bits */
182 #define CST4336_SPI_MODE_MASK 0x00000001
183 #define CST4336_SPROM_PRESENT 0x00000002
184 #define CST4336_OTP_PRESENT 0x00000004
185 #define CST4336_ARMREMAP_0 0x00000008
186 #define CST4336_ILPDIV_EN_MASK 0x00000010
187 #define CST4336_ILPDIV_EN_SHIFT 4
188 #define CST4336_XTAL_PD_POL_MASK 0x00000020
189 #define CST4336_XTAL_PD_POL_SHIFT 5
190 #define CST4336_LPO_SEL_MASK 0x00000040
191 #define CST4336_LPO_SEL_SHIFT 6
192 #define CST4336_RES_INIT_MODE_MASK 0x00000180
193 #define CST4336_RES_INIT_MODE_SHIFT 7
194 #define CST4336_CBUCK_MODE_MASK 0x00000600
195 #define CST4336_CBUCK_MODE_SHIFT 9
196
197 /* 4313 chip-specific ChipStatus register bits */
198 #define CST4313_SPROM_PRESENT 1
199 #define CST4313_OTP_PRESENT 2
200 #define CST4313_SPROM_OTP_SEL_MASK 0x00000002
201 #define CST4313_SPROM_OTP_SEL_SHIFT 0
202
203 /* 4313 Chip specific ChipControl register bits */
204 /* 12 mA drive strengh for later 4313 */
205 #define CCTRL_4313_12MA_LED_DRIVE 0x00000007
206
207 /* Manufacturer Ids */
208 #define MFGID_ARM 0x43b
209 #define MFGID_BRCM 0x4bf
210 #define MFGID_MIPS 0x4a7
211
212 /* Enumeration ROM registers */
213 #define ER_EROMENTRY 0x000
214 #define ER_REMAPCONTROL 0xe00
215 #define ER_REMAPSELECT 0xe04
216 #define ER_MASTERSELECT 0xe10
217 #define ER_ITCR 0xf00
218 #define ER_ITIP 0xf04
219
220 /* Erom entries */
221 #define ER_TAG 0xe
222 #define ER_TAG1 0x6
223 #define ER_VALID 1
224 #define ER_CI 0
225 #define ER_MP 2
226 #define ER_ADD 4
227 #define ER_END 0xe
228 #define ER_BAD 0xffffffff
229
230 /* EROM CompIdentA */
231 #define CIA_MFG_MASK 0xfff00000
232 #define CIA_MFG_SHIFT 20
233 #define CIA_CID_MASK 0x000fff00
234 #define CIA_CID_SHIFT 8
235 #define CIA_CCL_MASK 0x000000f0
236 #define CIA_CCL_SHIFT 4
237
238 /* EROM CompIdentB */
239 #define CIB_REV_MASK 0xff000000
240 #define CIB_REV_SHIFT 24
241 #define CIB_NSW_MASK 0x00f80000
242 #define CIB_NSW_SHIFT 19
243 #define CIB_NMW_MASK 0x0007c000
244 #define CIB_NMW_SHIFT 14
245 #define CIB_NSP_MASK 0x00003e00
246 #define CIB_NSP_SHIFT 9
247 #define CIB_NMP_MASK 0x000001f0
248 #define CIB_NMP_SHIFT 4
249
250 /* EROM AddrDesc */
251 #define AD_ADDR_MASK 0xfffff000
252 #define AD_SP_MASK 0x00000f00
253 #define AD_SP_SHIFT 8
254 #define AD_ST_MASK 0x000000c0
255 #define AD_ST_SHIFT 6
256 #define AD_ST_SLAVE 0x00000000
257 #define AD_ST_BRIDGE 0x00000040
258 #define AD_ST_SWRAP 0x00000080
259 #define AD_ST_MWRAP 0x000000c0
260 #define AD_SZ_MASK 0x00000030
261 #define AD_SZ_SHIFT 4
262 #define AD_SZ_4K 0x00000000
263 #define AD_SZ_8K 0x00000010
264 #define AD_SZ_16K 0x00000020
265 #define AD_SZ_SZD 0x00000030
266 #define AD_AG32 0x00000008
267 #define AD_ADDR_ALIGN 0x00000fff
268 #define AD_SZ_BASE 0x00001000 /* 4KB */
269
270 /* EROM SizeDesc */
271 #define SD_SZ_MASK 0xfffff000
272 #define SD_SG32 0x00000008
273 #define SD_SZ_ALIGN 0x00000fff
274
275 /* PCI config space bit 4 for 4306c0 slow clock source */
276 #define PCI_CFG_GPIO_SCS 0x10
277 /* PCI config space GPIO 14 for Xtal power-up */
278 #define PCI_CFG_GPIO_XTAL 0x40
279 /* PCI config space GPIO 15 for PLL power-down */
280 #define PCI_CFG_GPIO_PLL 0x80
281
282 /* power control defines */
283 #define PLL_DELAY 150 /* us pll on delay */
284 #define FREF_DELAY 200 /* us fref change delay */
285 #define XTAL_ON_DELAY 1000 /* us crystal power-on delay */
286
287 /* resetctrl */
288 #define AIRC_RESET 1
289
290 #define NOREV -1 /* Invalid rev */
291
292 /* GPIO Based LED powersave defines */
293 #define DEFAULT_GPIO_ONTIME 10 /* Default: 10% on */
294 #define DEFAULT_GPIO_OFFTIME 90 /* Default: 10% on */
295
296 /* When Srom support present, fields in sromcontrol */
297 #define SRC_START 0x80000000
298 #define SRC_BUSY 0x80000000
299 #define SRC_OPCODE 0x60000000
300 #define SRC_OP_READ 0x00000000
301 #define SRC_OP_WRITE 0x20000000
302 #define SRC_OP_WRDIS 0x40000000
303 #define SRC_OP_WREN 0x60000000
304 #define SRC_OTPSEL 0x00000010
305 #define SRC_LOCK 0x00000008
306 #define SRC_SIZE_MASK 0x00000006
307 #define SRC_SIZE_1K 0x00000000
308 #define SRC_SIZE_4K 0x00000002
309 #define SRC_SIZE_16K 0x00000004
310 #define SRC_SIZE_SHIFT 1
311 #define SRC_PRESENT 0x00000001
312
313 /* External PA enable mask */
314 #define GPIO_CTRL_EPA_EN_MASK 0x40
315
316 #define DEFAULT_GPIOTIMERVAL \
317 ((DEFAULT_GPIO_ONTIME << GPIO_ONTIME_SHIFT) | DEFAULT_GPIO_OFFTIME)
318
319 #define BADIDX (SI_MAXCORES + 1)
320
321 #define IS_SIM(chippkg) \
322 ((chippkg == HDLSIM_PKG_ID) || (chippkg == HWSIM_PKG_ID))
323
324 #define PCI(sih) (ai_get_buscoretype(sih) == PCI_CORE_ID)
325 #define PCIE(sih) (ai_get_buscoretype(sih) == PCIE_CORE_ID)
326
327 #define PCI_FORCEHT(sih) (PCIE(sih) && (ai_get_chip_id(sih) == BCM4716_CHIP_ID))
328
329 #ifdef DEBUG
330 #define SI_MSG(fmt, ...) pr_debug(fmt, ##__VA_ARGS__)
331 #else
332 #define SI_MSG(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
333 #endif /* DEBUG */
334
335 #define GOODCOREADDR(x, b) \
336 (((x) >= (b)) && ((x) < ((b) + SI_MAXCORES * SI_CORE_SIZE)) && \
337 IS_ALIGNED((x), SI_CORE_SIZE))
338
339 struct aidmp {
340 u32 oobselina30; /* 0x000 */
341 u32 oobselina74; /* 0x004 */
342 u32 PAD[6];
343 u32 oobselinb30; /* 0x020 */
344 u32 oobselinb74; /* 0x024 */
345 u32 PAD[6];
346 u32 oobselinc30; /* 0x040 */
347 u32 oobselinc74; /* 0x044 */
348 u32 PAD[6];
349 u32 oobselind30; /* 0x060 */
350 u32 oobselind74; /* 0x064 */
351 u32 PAD[38];
352 u32 oobselouta30; /* 0x100 */
353 u32 oobselouta74; /* 0x104 */
354 u32 PAD[6];
355 u32 oobseloutb30; /* 0x120 */
356 u32 oobseloutb74; /* 0x124 */
357 u32 PAD[6];
358 u32 oobseloutc30; /* 0x140 */
359 u32 oobseloutc74; /* 0x144 */
360 u32 PAD[6];
361 u32 oobseloutd30; /* 0x160 */
362 u32 oobseloutd74; /* 0x164 */
363 u32 PAD[38];
364 u32 oobsynca; /* 0x200 */
365 u32 oobseloutaen; /* 0x204 */
366 u32 PAD[6];
367 u32 oobsyncb; /* 0x220 */
368 u32 oobseloutben; /* 0x224 */
369 u32 PAD[6];
370 u32 oobsyncc; /* 0x240 */
371 u32 oobseloutcen; /* 0x244 */
372 u32 PAD[6];
373 u32 oobsyncd; /* 0x260 */
374 u32 oobseloutden; /* 0x264 */
375 u32 PAD[38];
376 u32 oobaextwidth; /* 0x300 */
377 u32 oobainwidth; /* 0x304 */
378 u32 oobaoutwidth; /* 0x308 */
379 u32 PAD[5];
380 u32 oobbextwidth; /* 0x320 */
381 u32 oobbinwidth; /* 0x324 */
382 u32 oobboutwidth; /* 0x328 */
383 u32 PAD[5];
384 u32 oobcextwidth; /* 0x340 */
385 u32 oobcinwidth; /* 0x344 */
386 u32 oobcoutwidth; /* 0x348 */
387 u32 PAD[5];
388 u32 oobdextwidth; /* 0x360 */
389 u32 oobdinwidth; /* 0x364 */
390 u32 oobdoutwidth; /* 0x368 */
391 u32 PAD[37];
392 u32 ioctrlset; /* 0x400 */
393 u32 ioctrlclear; /* 0x404 */
394 u32 ioctrl; /* 0x408 */
395 u32 PAD[61];
396 u32 iostatus; /* 0x500 */
397 u32 PAD[127];
398 u32 ioctrlwidth; /* 0x700 */
399 u32 iostatuswidth; /* 0x704 */
400 u32 PAD[62];
401 u32 resetctrl; /* 0x800 */
402 u32 resetstatus; /* 0x804 */
403 u32 resetreadid; /* 0x808 */
404 u32 resetwriteid; /* 0x80c */
405 u32 PAD[60];
406 u32 errlogctrl; /* 0x900 */
407 u32 errlogdone; /* 0x904 */
408 u32 errlogstatus; /* 0x908 */
409 u32 errlogaddrlo; /* 0x90c */
410 u32 errlogaddrhi; /* 0x910 */
411 u32 errlogid; /* 0x914 */
412 u32 errloguser; /* 0x918 */
413 u32 errlogflags; /* 0x91c */
414 u32 PAD[56];
415 u32 intstatus; /* 0xa00 */
416 u32 PAD[127];
417 u32 config; /* 0xe00 */
418 u32 PAD[63];
419 u32 itcr; /* 0xf00 */
420 u32 PAD[3];
421 u32 itipooba; /* 0xf10 */
422 u32 itipoobb; /* 0xf14 */
423 u32 itipoobc; /* 0xf18 */
424 u32 itipoobd; /* 0xf1c */
425 u32 PAD[4];
426 u32 itipoobaout; /* 0xf30 */
427 u32 itipoobbout; /* 0xf34 */
428 u32 itipoobcout; /* 0xf38 */
429 u32 itipoobdout; /* 0xf3c */
430 u32 PAD[4];
431 u32 itopooba; /* 0xf50 */
432 u32 itopoobb; /* 0xf54 */
433 u32 itopoobc; /* 0xf58 */
434 u32 itopoobd; /* 0xf5c */
435 u32 PAD[4];
436 u32 itopoobain; /* 0xf70 */
437 u32 itopoobbin; /* 0xf74 */
438 u32 itopoobcin; /* 0xf78 */
439 u32 itopoobdin; /* 0xf7c */
440 u32 PAD[4];
441 u32 itopreset; /* 0xf90 */
442 u32 PAD[15];
443 u32 peripherialid4; /* 0xfd0 */
444 u32 peripherialid5; /* 0xfd4 */
445 u32 peripherialid6; /* 0xfd8 */
446 u32 peripherialid7; /* 0xfdc */
447 u32 peripherialid0; /* 0xfe0 */
448 u32 peripherialid1; /* 0xfe4 */
449 u32 peripherialid2; /* 0xfe8 */
450 u32 peripherialid3; /* 0xfec */
451 u32 componentid0; /* 0xff0 */
452 u32 componentid1; /* 0xff4 */
453 u32 componentid2; /* 0xff8 */
454 u32 componentid3; /* 0xffc */
455 };
456
457 /* return true if PCIE capability exists in the pci config space */
ai_ispcie(struct si_info * sii)458 static bool ai_ispcie(struct si_info *sii)
459 {
460 u8 cap_ptr;
461
462 cap_ptr =
463 pcicore_find_pci_capability(sii->pcibus, PCI_CAP_ID_EXP, NULL,
464 NULL);
465 if (!cap_ptr)
466 return false;
467
468 return true;
469 }
470
ai_buscore_prep(struct si_info * sii)471 static bool ai_buscore_prep(struct si_info *sii)
472 {
473 /* kludge to enable the clock on the 4306 which lacks a slowclock */
474 if (!ai_ispcie(sii))
475 ai_clkctl_xtal(&sii->pub, XTAL | PLL, ON);
476 return true;
477 }
478
479 static bool
ai_buscore_setup(struct si_info * sii,struct bcma_device * cc)480 ai_buscore_setup(struct si_info *sii, struct bcma_device *cc)
481 {
482 struct bcma_device *pci = NULL;
483 struct bcma_device *pcie = NULL;
484 struct bcma_device *core;
485
486
487 /* no cores found, bail out */
488 if (cc->bus->nr_cores == 0)
489 return false;
490
491 /* get chipcommon rev */
492 sii->pub.ccrev = cc->id.rev;
493
494 /* get chipcommon chipstatus */
495 if (ai_get_ccrev(&sii->pub) >= 11)
496 sii->chipst = bcma_read32(cc, CHIPCREGOFFS(chipstatus));
497
498 /* get chipcommon capabilites */
499 sii->pub.cccaps = bcma_read32(cc, CHIPCREGOFFS(capabilities));
500
501 /* get pmu rev and caps */
502 if (ai_get_cccaps(&sii->pub) & CC_CAP_PMU) {
503 sii->pub.pmucaps = bcma_read32(cc,
504 CHIPCREGOFFS(pmucapabilities));
505 sii->pub.pmurev = sii->pub.pmucaps & PCAP_REV_MASK;
506 }
507
508 /* figure out buscore */
509 list_for_each_entry(core, &cc->bus->cores, list) {
510 uint cid, crev;
511
512 cid = core->id.id;
513 crev = core->id.rev;
514
515 if (cid == PCI_CORE_ID) {
516 pci = core;
517 } else if (cid == PCIE_CORE_ID) {
518 pcie = core;
519 }
520 }
521
522 if (pci && pcie) {
523 if (ai_ispcie(sii))
524 pci = NULL;
525 else
526 pcie = NULL;
527 }
528 if (pci) {
529 sii->buscore = pci;
530 } else if (pcie) {
531 sii->buscore = pcie;
532 }
533
534 /* fixup necessary chip/core configurations */
535 if (!sii->pch) {
536 sii->pch = pcicore_init(&sii->pub, sii->icbus->drv_pci.core);
537 if (sii->pch == NULL)
538 return false;
539 }
540 if (ai_pci_fixcfg(&sii->pub))
541 return false;
542
543 return true;
544 }
545
546 /*
547 * get boardtype and boardrev
548 */
ai_nvram_process(struct si_info * sii)549 static __used void ai_nvram_process(struct si_info *sii)
550 {
551 uint w = 0;
552
553 /* do a pci config read to get subsystem id and subvendor id */
554 pci_read_config_dword(sii->pcibus, PCI_SUBSYSTEM_VENDOR_ID, &w);
555
556 sii->pub.boardvendor = w & 0xffff;
557 sii->pub.boardtype = (w >> 16) & 0xffff;
558 }
559
ai_doattach(struct si_info * sii,struct bcma_bus * pbus)560 static struct si_info *ai_doattach(struct si_info *sii,
561 struct bcma_bus *pbus)
562 {
563 struct si_pub *sih = &sii->pub;
564 u32 w, savewin;
565 struct bcma_device *cc;
566 uint socitype;
567
568 savewin = 0;
569
570 sii->icbus = pbus;
571 sii->pcibus = pbus->host_pci;
572
573 /* switch to Chipcommon core */
574 cc = pbus->drv_cc.core;
575
576 /* bus/core/clk setup for register access */
577 if (!ai_buscore_prep(sii))
578 return NULL;
579
580 /*
581 * ChipID recognition.
582 * We assume we can read chipid at offset 0 from the regs arg.
583 * If we add other chiptypes (or if we need to support old sdio
584 * hosts w/o chipcommon), some way of recognizing them needs to
585 * be added here.
586 */
587 w = bcma_read32(cc, CHIPCREGOFFS(chipid));
588 socitype = (w & CID_TYPE_MASK) >> CID_TYPE_SHIFT;
589 /* Might as wll fill in chip id rev & pkg */
590 sih->chip = w & CID_ID_MASK;
591 sih->chiprev = (w & CID_REV_MASK) >> CID_REV_SHIFT;
592 sih->chippkg = (w & CID_PKG_MASK) >> CID_PKG_SHIFT;
593
594 /* scan for cores */
595 if (socitype != SOCI_AI)
596 return NULL;
597
598 SI_MSG("Found chip type AI (0x%08x)\n", w);
599 if (!ai_buscore_setup(sii, cc))
600 goto exit;
601
602 /* Init nvram from sprom/otp if they exist */
603 if (srom_var_init(&sii->pub))
604 goto exit;
605
606 ai_nvram_process(sii);
607
608 /* === NVRAM, clock is ready === */
609 bcma_write32(cc, CHIPCREGOFFS(gpiopullup), 0);
610 bcma_write32(cc, CHIPCREGOFFS(gpiopulldown), 0);
611
612 /* PMU specific initializations */
613 if (ai_get_cccaps(sih) & CC_CAP_PMU) {
614 si_pmu_init(sih);
615 (void)si_pmu_measure_alpclk(sih);
616 si_pmu_res_init(sih);
617 }
618
619 /* setup the GPIO based LED powersave register */
620 w = getintvar(sih, BRCMS_SROM_LEDDC);
621 if (w == 0)
622 w = DEFAULT_GPIOTIMERVAL;
623 ai_cc_reg(sih, offsetof(struct chipcregs, gpiotimerval),
624 ~0, w);
625
626 if (PCIE(sih))
627 pcicore_attach(sii->pch, SI_DOATTACH);
628
629 if (ai_get_chip_id(sih) == BCM43224_CHIP_ID) {
630 /*
631 * enable 12 mA drive strenth for 43224 and
632 * set chipControl register bit 15
633 */
634 if (ai_get_chiprev(sih) == 0) {
635 SI_MSG("Applying 43224A0 WARs\n");
636 ai_cc_reg(sih, offsetof(struct chipcregs, chipcontrol),
637 CCTRL43224_GPIO_TOGGLE,
638 CCTRL43224_GPIO_TOGGLE);
639 si_pmu_chipcontrol(sih, 0, CCTRL_43224A0_12MA_LED_DRIVE,
640 CCTRL_43224A0_12MA_LED_DRIVE);
641 }
642 if (ai_get_chiprev(sih) >= 1) {
643 SI_MSG("Applying 43224B0+ WARs\n");
644 si_pmu_chipcontrol(sih, 0, CCTRL_43224B0_12MA_LED_DRIVE,
645 CCTRL_43224B0_12MA_LED_DRIVE);
646 }
647 }
648
649 if (ai_get_chip_id(sih) == BCM4313_CHIP_ID) {
650 /*
651 * enable 12 mA drive strenth for 4313 and
652 * set chipControl register bit 1
653 */
654 SI_MSG("Applying 4313 WARs\n");
655 si_pmu_chipcontrol(sih, 0, CCTRL_4313_12MA_LED_DRIVE,
656 CCTRL_4313_12MA_LED_DRIVE);
657 }
658
659 return sii;
660
661 exit:
662 if (sii->pch)
663 pcicore_deinit(sii->pch);
664 sii->pch = NULL;
665
666 return NULL;
667 }
668
669 /*
670 * Allocate a si handle and do the attach.
671 */
672 struct si_pub *
ai_attach(struct bcma_bus * pbus)673 ai_attach(struct bcma_bus *pbus)
674 {
675 struct si_info *sii;
676
677 /* alloc struct si_info */
678 sii = kzalloc(sizeof(struct si_info), GFP_ATOMIC);
679 if (sii == NULL)
680 return NULL;
681
682 if (ai_doattach(sii, pbus) == NULL) {
683 kfree(sii);
684 return NULL;
685 }
686
687 return (struct si_pub *) sii;
688 }
689
690 /* may be called with core in reset */
ai_detach(struct si_pub * sih)691 void ai_detach(struct si_pub *sih)
692 {
693 struct si_info *sii;
694
695 struct si_pub *si_local = NULL;
696 memcpy(&si_local, &sih, sizeof(struct si_pub **));
697
698 sii = (struct si_info *)sih;
699
700 if (sii == NULL)
701 return;
702
703 if (sii->pch)
704 pcicore_deinit(sii->pch);
705 sii->pch = NULL;
706
707 srom_free_vars(sih);
708 kfree(sii);
709 }
710
711 /* return index of coreid or BADIDX if not found */
ai_findcore(struct si_pub * sih,u16 coreid,u16 coreunit)712 struct bcma_device *ai_findcore(struct si_pub *sih, u16 coreid, u16 coreunit)
713 {
714 struct bcma_device *core;
715 struct si_info *sii;
716 uint found;
717
718 sii = (struct si_info *)sih;
719
720 found = 0;
721
722 list_for_each_entry(core, &sii->icbus->cores, list)
723 if (core->id.id == coreid) {
724 if (found == coreunit)
725 return core;
726 found++;
727 }
728
729 return NULL;
730 }
731
732 /*
733 * read/modify chipcommon core register.
734 */
ai_cc_reg(struct si_pub * sih,uint regoff,u32 mask,u32 val)735 uint ai_cc_reg(struct si_pub *sih, uint regoff, u32 mask, u32 val)
736 {
737 struct bcma_device *cc;
738 u32 w;
739 struct si_info *sii;
740
741 sii = (struct si_info *)sih;
742 cc = sii->icbus->drv_cc.core;
743
744 /* mask and set */
745 if (mask || val) {
746 bcma_maskset32(cc, regoff, ~mask, val);
747 }
748
749 /* readback */
750 w = bcma_read32(cc, regoff);
751
752 return w;
753 }
754
755 /* return the slow clock source - LPO, XTAL, or PCI */
ai_slowclk_src(struct si_pub * sih,struct bcma_device * cc)756 static uint ai_slowclk_src(struct si_pub *sih, struct bcma_device *cc)
757 {
758 struct si_info *sii;
759 u32 val;
760
761 sii = (struct si_info *)sih;
762 if (ai_get_ccrev(&sii->pub) < 6) {
763 pci_read_config_dword(sii->pcibus, PCI_GPIO_OUT,
764 &val);
765 if (val & PCI_CFG_GPIO_SCS)
766 return SCC_SS_PCI;
767 return SCC_SS_XTAL;
768 } else if (ai_get_ccrev(&sii->pub) < 10) {
769 return bcma_read32(cc, CHIPCREGOFFS(slow_clk_ctl)) &
770 SCC_SS_MASK;
771 } else /* Insta-clock */
772 return SCC_SS_XTAL;
773 }
774
775 /*
776 * return the ILP (slowclock) min or max frequency
777 * precondition: we've established the chip has dynamic clk control
778 */
ai_slowclk_freq(struct si_pub * sih,bool max_freq,struct bcma_device * cc)779 static uint ai_slowclk_freq(struct si_pub *sih, bool max_freq,
780 struct bcma_device *cc)
781 {
782 u32 slowclk;
783 uint div;
784
785 slowclk = ai_slowclk_src(sih, cc);
786 if (ai_get_ccrev(sih) < 6) {
787 if (slowclk == SCC_SS_PCI)
788 return max_freq ? (PCIMAXFREQ / 64)
789 : (PCIMINFREQ / 64);
790 else
791 return max_freq ? (XTALMAXFREQ / 32)
792 : (XTALMINFREQ / 32);
793 } else if (ai_get_ccrev(sih) < 10) {
794 div = 4 *
795 (((bcma_read32(cc, CHIPCREGOFFS(slow_clk_ctl)) &
796 SCC_CD_MASK) >> SCC_CD_SHIFT) + 1);
797 if (slowclk == SCC_SS_LPO)
798 return max_freq ? LPOMAXFREQ : LPOMINFREQ;
799 else if (slowclk == SCC_SS_XTAL)
800 return max_freq ? (XTALMAXFREQ / div)
801 : (XTALMINFREQ / div);
802 else if (slowclk == SCC_SS_PCI)
803 return max_freq ? (PCIMAXFREQ / div)
804 : (PCIMINFREQ / div);
805 } else {
806 /* Chipc rev 10 is InstaClock */
807 div = bcma_read32(cc, CHIPCREGOFFS(system_clk_ctl));
808 div = 4 * ((div >> SYCC_CD_SHIFT) + 1);
809 return max_freq ? XTALMAXFREQ : (XTALMINFREQ / div);
810 }
811 return 0;
812 }
813
814 static void
ai_clkctl_setdelay(struct si_pub * sih,struct bcma_device * cc)815 ai_clkctl_setdelay(struct si_pub *sih, struct bcma_device *cc)
816 {
817 uint slowmaxfreq, pll_delay, slowclk;
818 uint pll_on_delay, fref_sel_delay;
819
820 pll_delay = PLL_DELAY;
821
822 /*
823 * If the slow clock is not sourced by the xtal then
824 * add the xtal_on_delay since the xtal will also be
825 * powered down by dynamic clk control logic.
826 */
827
828 slowclk = ai_slowclk_src(sih, cc);
829 if (slowclk != SCC_SS_XTAL)
830 pll_delay += XTAL_ON_DELAY;
831
832 /* Starting with 4318 it is ILP that is used for the delays */
833 slowmaxfreq =
834 ai_slowclk_freq(sih,
835 (ai_get_ccrev(sih) >= 10) ? false : true, cc);
836
837 pll_on_delay = ((slowmaxfreq * pll_delay) + 999999) / 1000000;
838 fref_sel_delay = ((slowmaxfreq * FREF_DELAY) + 999999) / 1000000;
839
840 bcma_write32(cc, CHIPCREGOFFS(pll_on_delay), pll_on_delay);
841 bcma_write32(cc, CHIPCREGOFFS(fref_sel_delay), fref_sel_delay);
842 }
843
844 /* initialize power control delay registers */
ai_clkctl_init(struct si_pub * sih)845 void ai_clkctl_init(struct si_pub *sih)
846 {
847 struct bcma_device *cc;
848
849 if (!(ai_get_cccaps(sih) & CC_CAP_PWR_CTL))
850 return;
851
852 cc = ai_findcore(sih, BCMA_CORE_CHIPCOMMON, 0);
853 if (cc == NULL)
854 return;
855
856 /* set all Instaclk chip ILP to 1 MHz */
857 if (ai_get_ccrev(sih) >= 10)
858 bcma_maskset32(cc, CHIPCREGOFFS(system_clk_ctl), SYCC_CD_MASK,
859 (ILP_DIV_1MHZ << SYCC_CD_SHIFT));
860
861 ai_clkctl_setdelay(sih, cc);
862 }
863
864 /*
865 * return the value suitable for writing to the
866 * dot11 core FAST_PWRUP_DELAY register
867 */
ai_clkctl_fast_pwrup_delay(struct si_pub * sih)868 u16 ai_clkctl_fast_pwrup_delay(struct si_pub *sih)
869 {
870 struct si_info *sii;
871 struct bcma_device *cc;
872 uint slowminfreq;
873 u16 fpdelay;
874
875 sii = (struct si_info *)sih;
876 if (ai_get_cccaps(sih) & CC_CAP_PMU) {
877 fpdelay = si_pmu_fast_pwrup_delay(sih);
878 return fpdelay;
879 }
880
881 if (!(ai_get_cccaps(sih) & CC_CAP_PWR_CTL))
882 return 0;
883
884 fpdelay = 0;
885 cc = ai_findcore(sih, CC_CORE_ID, 0);
886 if (cc) {
887 slowminfreq = ai_slowclk_freq(sih, false, cc);
888 fpdelay = (((bcma_read32(cc, CHIPCREGOFFS(pll_on_delay)) + 2)
889 * 1000000) + (slowminfreq - 1)) / slowminfreq;
890 }
891 return fpdelay;
892 }
893
894 /* turn primary xtal and/or pll off/on */
ai_clkctl_xtal(struct si_pub * sih,uint what,bool on)895 int ai_clkctl_xtal(struct si_pub *sih, uint what, bool on)
896 {
897 struct si_info *sii;
898 u32 in, out, outen;
899
900 sii = (struct si_info *)sih;
901
902 /* pcie core doesn't have any mapping to control the xtal pu */
903 if (PCIE(sih))
904 return -1;
905
906 pci_read_config_dword(sii->pcibus, PCI_GPIO_IN, &in);
907 pci_read_config_dword(sii->pcibus, PCI_GPIO_OUT, &out);
908 pci_read_config_dword(sii->pcibus, PCI_GPIO_OUTEN, &outen);
909
910 /*
911 * Avoid glitching the clock if GPRS is already using it.
912 * We can't actually read the state of the PLLPD so we infer it
913 * by the value of XTAL_PU which *is* readable via gpioin.
914 */
915 if (on && (in & PCI_CFG_GPIO_XTAL))
916 return 0;
917
918 if (what & XTAL)
919 outen |= PCI_CFG_GPIO_XTAL;
920 if (what & PLL)
921 outen |= PCI_CFG_GPIO_PLL;
922
923 if (on) {
924 /* turn primary xtal on */
925 if (what & XTAL) {
926 out |= PCI_CFG_GPIO_XTAL;
927 if (what & PLL)
928 out |= PCI_CFG_GPIO_PLL;
929 pci_write_config_dword(sii->pcibus,
930 PCI_GPIO_OUT, out);
931 pci_write_config_dword(sii->pcibus,
932 PCI_GPIO_OUTEN, outen);
933 udelay(XTAL_ON_DELAY);
934 }
935
936 /* turn pll on */
937 if (what & PLL) {
938 out &= ~PCI_CFG_GPIO_PLL;
939 pci_write_config_dword(sii->pcibus,
940 PCI_GPIO_OUT, out);
941 mdelay(2);
942 }
943 } else {
944 if (what & XTAL)
945 out &= ~PCI_CFG_GPIO_XTAL;
946 if (what & PLL)
947 out |= PCI_CFG_GPIO_PLL;
948 pci_write_config_dword(sii->pcibus,
949 PCI_GPIO_OUT, out);
950 pci_write_config_dword(sii->pcibus,
951 PCI_GPIO_OUTEN, outen);
952 }
953
954 return 0;
955 }
956
957 /* clk control mechanism through chipcommon, no policy checking */
_ai_clkctl_cc(struct si_info * sii,uint mode)958 static bool _ai_clkctl_cc(struct si_info *sii, uint mode)
959 {
960 struct bcma_device *cc;
961 u32 scc;
962
963 /* chipcommon cores prior to rev6 don't support dynamic clock control */
964 if (ai_get_ccrev(&sii->pub) < 6)
965 return false;
966
967 cc = ai_findcore(&sii->pub, BCMA_CORE_CHIPCOMMON, 0);
968
969 if (!(ai_get_cccaps(&sii->pub) & CC_CAP_PWR_CTL) &&
970 (ai_get_ccrev(&sii->pub) < 20))
971 return mode == CLK_FAST;
972
973 switch (mode) {
974 case CLK_FAST: /* FORCEHT, fast (pll) clock */
975 if (ai_get_ccrev(&sii->pub) < 10) {
976 /*
977 * don't forget to force xtal back
978 * on before we clear SCC_DYN_XTAL..
979 */
980 ai_clkctl_xtal(&sii->pub, XTAL, ON);
981 bcma_maskset32(cc, CHIPCREGOFFS(slow_clk_ctl),
982 (SCC_XC | SCC_FS | SCC_IP), SCC_IP);
983 } else if (ai_get_ccrev(&sii->pub) < 20) {
984 bcma_set32(cc, CHIPCREGOFFS(system_clk_ctl), SYCC_HR);
985 } else {
986 bcma_set32(cc, CHIPCREGOFFS(clk_ctl_st), CCS_FORCEHT);
987 }
988
989 /* wait for the PLL */
990 if (ai_get_cccaps(&sii->pub) & CC_CAP_PMU) {
991 u32 htavail = CCS_HTAVAIL;
992 SPINWAIT(((bcma_read32(cc, CHIPCREGOFFS(clk_ctl_st)) &
993 htavail) == 0), PMU_MAX_TRANSITION_DLY);
994 } else {
995 udelay(PLL_DELAY);
996 }
997 break;
998
999 case CLK_DYNAMIC: /* enable dynamic clock control */
1000 if (ai_get_ccrev(&sii->pub) < 10) {
1001 scc = bcma_read32(cc, CHIPCREGOFFS(slow_clk_ctl));
1002 scc &= ~(SCC_FS | SCC_IP | SCC_XC);
1003 if ((scc & SCC_SS_MASK) != SCC_SS_XTAL)
1004 scc |= SCC_XC;
1005 bcma_write32(cc, CHIPCREGOFFS(slow_clk_ctl), scc);
1006
1007 /*
1008 * for dynamic control, we have to
1009 * release our xtal_pu "force on"
1010 */
1011 if (scc & SCC_XC)
1012 ai_clkctl_xtal(&sii->pub, XTAL, OFF);
1013 } else if (ai_get_ccrev(&sii->pub) < 20) {
1014 /* Instaclock */
1015 bcma_mask32(cc, CHIPCREGOFFS(system_clk_ctl), ~SYCC_HR);
1016 } else {
1017 bcma_mask32(cc, CHIPCREGOFFS(clk_ctl_st), ~CCS_FORCEHT);
1018 }
1019 break;
1020
1021 default:
1022 break;
1023 }
1024
1025 return mode == CLK_FAST;
1026 }
1027
1028 /*
1029 * clock control policy function throught chipcommon
1030 *
1031 * set dynamic clk control mode (forceslow, forcefast, dynamic)
1032 * returns true if we are forcing fast clock
1033 * this is a wrapper over the next internal function
1034 * to allow flexible policy settings for outside caller
1035 */
ai_clkctl_cc(struct si_pub * sih,uint mode)1036 bool ai_clkctl_cc(struct si_pub *sih, uint mode)
1037 {
1038 struct si_info *sii;
1039
1040 sii = (struct si_info *)sih;
1041
1042 /* chipcommon cores prior to rev6 don't support dynamic clock control */
1043 if (ai_get_ccrev(sih) < 6)
1044 return false;
1045
1046 if (PCI_FORCEHT(sih))
1047 return mode == CLK_FAST;
1048
1049 return _ai_clkctl_cc(sii, mode);
1050 }
1051
ai_pci_up(struct si_pub * sih)1052 void ai_pci_up(struct si_pub *sih)
1053 {
1054 struct si_info *sii;
1055
1056 sii = (struct si_info *)sih;
1057
1058 if (PCI_FORCEHT(sih))
1059 _ai_clkctl_cc(sii, CLK_FAST);
1060
1061 if (PCIE(sih))
1062 pcicore_up(sii->pch, SI_PCIUP);
1063
1064 }
1065
1066 /* Unconfigure and/or apply various WARs when system is going to sleep mode */
ai_pci_sleep(struct si_pub * sih)1067 void ai_pci_sleep(struct si_pub *sih)
1068 {
1069 struct si_info *sii;
1070
1071 sii = (struct si_info *)sih;
1072
1073 pcicore_sleep(sii->pch);
1074 }
1075
1076 /* Unconfigure and/or apply various WARs when going down */
ai_pci_down(struct si_pub * sih)1077 void ai_pci_down(struct si_pub *sih)
1078 {
1079 struct si_info *sii;
1080
1081 sii = (struct si_info *)sih;
1082
1083 /* release FORCEHT since chip is going to "down" state */
1084 if (PCI_FORCEHT(sih))
1085 _ai_clkctl_cc(sii, CLK_DYNAMIC);
1086
1087 pcicore_down(sii->pch, SI_PCIDOWN);
1088 }
1089
1090 /*
1091 * Configure the pci core for pci client (NIC) action
1092 * coremask is the bitvec of cores by index to be enabled.
1093 */
ai_pci_setup(struct si_pub * sih,uint coremask)1094 void ai_pci_setup(struct si_pub *sih, uint coremask)
1095 {
1096 struct si_info *sii;
1097 u32 w;
1098
1099 sii = (struct si_info *)sih;
1100
1101 /*
1102 * Enable sb->pci interrupts. Assume
1103 * PCI rev 2.3 support was added in pci core rev 6 and things changed..
1104 */
1105 if (PCIE(sih) || (PCI(sih) && (ai_get_buscorerev(sih) >= 6))) {
1106 /* pci config write to set this core bit in PCIIntMask */
1107 pci_read_config_dword(sii->pcibus, PCI_INT_MASK, &w);
1108 w |= (coremask << PCI_SBIM_SHIFT);
1109 pci_write_config_dword(sii->pcibus, PCI_INT_MASK, w);
1110 }
1111
1112 if (PCI(sih)) {
1113 pcicore_pci_setup(sii->pch);
1114 }
1115 }
1116
1117 /*
1118 * Fixup SROMless PCI device's configuration.
1119 * The current core may be changed upon return.
1120 */
ai_pci_fixcfg(struct si_pub * sih)1121 int ai_pci_fixcfg(struct si_pub *sih)
1122 {
1123 struct si_info *sii = (struct si_info *)sih;
1124
1125 /* Fixup PI in SROM shadow area to enable the correct PCI core access */
1126 /* check 'pi' is correct and fix it if not */
1127 pcicore_fixcfg(sii->pch);
1128 pcicore_hwup(sii->pch);
1129 return 0;
1130 }
1131
1132 /* mask&set gpiocontrol bits */
ai_gpiocontrol(struct si_pub * sih,u32 mask,u32 val,u8 priority)1133 u32 ai_gpiocontrol(struct si_pub *sih, u32 mask, u32 val, u8 priority)
1134 {
1135 uint regoff;
1136
1137 regoff = offsetof(struct chipcregs, gpiocontrol);
1138 return ai_cc_reg(sih, regoff, mask, val);
1139 }
1140
ai_chipcontrl_epa4331(struct si_pub * sih,bool on)1141 void ai_chipcontrl_epa4331(struct si_pub *sih, bool on)
1142 {
1143 struct bcma_device *cc;
1144 u32 val;
1145
1146 cc = ai_findcore(sih, CC_CORE_ID, 0);
1147
1148 if (on) {
1149 if (ai_get_chippkg(sih) == 9 || ai_get_chippkg(sih) == 0xb)
1150 /* Ext PA Controls for 4331 12x9 Package */
1151 bcma_set32(cc, CHIPCREGOFFS(chipcontrol),
1152 CCTRL4331_EXTPA_EN |
1153 CCTRL4331_EXTPA_ON_GPIO2_5);
1154 else
1155 /* Ext PA Controls for 4331 12x12 Package */
1156 bcma_set32(cc, CHIPCREGOFFS(chipcontrol),
1157 CCTRL4331_EXTPA_EN);
1158 } else {
1159 val &= ~(CCTRL4331_EXTPA_EN | CCTRL4331_EXTPA_ON_GPIO2_5);
1160 bcma_mask32(cc, CHIPCREGOFFS(chipcontrol),
1161 ~(CCTRL4331_EXTPA_EN | CCTRL4331_EXTPA_ON_GPIO2_5));
1162 }
1163 }
1164
1165 /* Enable BT-COEX & Ex-PA for 4313 */
ai_epa_4313war(struct si_pub * sih)1166 void ai_epa_4313war(struct si_pub *sih)
1167 {
1168 struct bcma_device *cc;
1169
1170 cc = ai_findcore(sih, CC_CORE_ID, 0);
1171
1172 /* EPA Fix */
1173 bcma_set32(cc, CHIPCREGOFFS(gpiocontrol), GPIO_CTRL_EPA_EN_MASK);
1174 }
1175
1176 /* check if the device is removed */
ai_deviceremoved(struct si_pub * sih)1177 bool ai_deviceremoved(struct si_pub *sih)
1178 {
1179 u32 w;
1180 struct si_info *sii;
1181
1182 sii = (struct si_info *)sih;
1183
1184 pci_read_config_dword(sii->pcibus, PCI_VENDOR_ID, &w);
1185 if ((w & 0xFFFF) != PCI_VENDOR_ID_BROADCOM)
1186 return true;
1187
1188 return false;
1189 }
1190
ai_is_sprom_available(struct si_pub * sih)1191 bool ai_is_sprom_available(struct si_pub *sih)
1192 {
1193 struct si_info *sii = (struct si_info *)sih;
1194
1195 if (ai_get_ccrev(sih) >= 31) {
1196 struct bcma_device *cc;
1197 u32 sromctrl;
1198
1199 if ((ai_get_cccaps(sih) & CC_CAP_SROM) == 0)
1200 return false;
1201
1202 cc = ai_findcore(sih, BCMA_CORE_CHIPCOMMON, 0);
1203 sromctrl = bcma_read32(cc, CHIPCREGOFFS(sromcontrol));
1204 return sromctrl & SRC_PRESENT;
1205 }
1206
1207 switch (ai_get_chip_id(sih)) {
1208 case BCM4313_CHIP_ID:
1209 return (sii->chipst & CST4313_SPROM_PRESENT) != 0;
1210 default:
1211 return true;
1212 }
1213 }
1214
ai_is_otp_disabled(struct si_pub * sih)1215 bool ai_is_otp_disabled(struct si_pub *sih)
1216 {
1217 struct si_info *sii = (struct si_info *)sih;
1218
1219 switch (ai_get_chip_id(sih)) {
1220 case BCM4313_CHIP_ID:
1221 return (sii->chipst & CST4313_OTP_PRESENT) == 0;
1222 /* These chips always have their OTP on */
1223 case BCM43224_CHIP_ID:
1224 case BCM43225_CHIP_ID:
1225 default:
1226 return false;
1227 }
1228 }
1229
ai_get_buscoretype(struct si_pub * sih)1230 uint ai_get_buscoretype(struct si_pub *sih)
1231 {
1232 struct si_info *sii = (struct si_info *)sih;
1233 return sii->buscore->id.id;
1234 }
1235
ai_get_buscorerev(struct si_pub * sih)1236 uint ai_get_buscorerev(struct si_pub *sih)
1237 {
1238 struct si_info *sii = (struct si_info *)sih;
1239 return sii->buscore->id.rev;
1240 }
1241