GNU Linux-libre 4.9.328-gnu1
[releases.git] / drivers / bcma / driver_chipcommon_pmu.c
1 /*
2  * Broadcom specific AMBA
3  * ChipCommon Power Management Unit driver
4  *
5  * Copyright 2009, Michael Buesch <m@bues.ch>
6  * Copyright 2007, 2011, Broadcom Corporation
7  * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de>
8  *
9  * Licensed under the GNU/GPL. See COPYING for details.
10  */
11
12 #include "bcma_private.h"
13 #include <linux/export.h>
14 #include <linux/bcma/bcma.h>
15
16 u32 bcma_chipco_pll_read(struct bcma_drv_cc *cc, u32 offset)
17 {
18         bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR, offset);
19         bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_ADDR);
20         return bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_DATA);
21 }
22 EXPORT_SYMBOL_GPL(bcma_chipco_pll_read);
23
24 void bcma_chipco_pll_write(struct bcma_drv_cc *cc, u32 offset, u32 value)
25 {
26         bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR, offset);
27         bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_ADDR);
28         bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_DATA, value);
29 }
30 EXPORT_SYMBOL_GPL(bcma_chipco_pll_write);
31
32 void bcma_chipco_pll_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask,
33                              u32 set)
34 {
35         bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR, offset);
36         bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_ADDR);
37         bcma_pmu_maskset32(cc, BCMA_CC_PMU_PLLCTL_DATA, mask, set);
38 }
39 EXPORT_SYMBOL_GPL(bcma_chipco_pll_maskset);
40
41 void bcma_chipco_chipctl_maskset(struct bcma_drv_cc *cc,
42                                  u32 offset, u32 mask, u32 set)
43 {
44         bcma_pmu_write32(cc, BCMA_CC_PMU_CHIPCTL_ADDR, offset);
45         bcma_pmu_read32(cc, BCMA_CC_PMU_CHIPCTL_ADDR);
46         bcma_pmu_maskset32(cc, BCMA_CC_PMU_CHIPCTL_DATA, mask, set);
47 }
48 EXPORT_SYMBOL_GPL(bcma_chipco_chipctl_maskset);
49
50 void bcma_chipco_regctl_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask,
51                                 u32 set)
52 {
53         bcma_pmu_write32(cc, BCMA_CC_PMU_REGCTL_ADDR, offset);
54         bcma_pmu_read32(cc, BCMA_CC_PMU_REGCTL_ADDR);
55         bcma_pmu_maskset32(cc, BCMA_CC_PMU_REGCTL_DATA, mask, set);
56 }
57 EXPORT_SYMBOL_GPL(bcma_chipco_regctl_maskset);
58
59 static u32 bcma_pmu_xtalfreq(struct bcma_drv_cc *cc)
60 {
61         u32 ilp_ctl, alp_hz;
62
63         if (!(bcma_pmu_read32(cc, BCMA_CC_PMU_STAT) &
64               BCMA_CC_PMU_STAT_EXT_LPO_AVAIL))
65                 return 0;
66
67         bcma_pmu_write32(cc, BCMA_CC_PMU_XTAL_FREQ,
68                          BIT(BCMA_CC_PMU_XTAL_FREQ_MEASURE_SHIFT));
69         usleep_range(1000, 2000);
70
71         ilp_ctl = bcma_pmu_read32(cc, BCMA_CC_PMU_XTAL_FREQ);
72         ilp_ctl &= BCMA_CC_PMU_XTAL_FREQ_ILPCTL_MASK;
73
74         bcma_pmu_write32(cc, BCMA_CC_PMU_XTAL_FREQ, 0);
75
76         alp_hz = ilp_ctl * 32768 / 4;
77         return (alp_hz + 50000) / 100000 * 100;
78 }
79
80 static void bcma_pmu2_pll_init0(struct bcma_drv_cc *cc, u32 xtalfreq)
81 {
82         struct bcma_bus *bus = cc->core->bus;
83         u32 freq_tgt_target = 0, freq_tgt_current;
84         u32 pll0, mask;
85
86         switch (bus->chipinfo.id) {
87         case BCMA_CHIP_ID_BCM43142:
88                 /* pmu2_xtaltab0_adfll_485 */
89                 switch (xtalfreq) {
90                 case 12000:
91                         freq_tgt_target = 0x50D52;
92                         break;
93                 case 20000:
94                         freq_tgt_target = 0x307FE;
95                         break;
96                 case 26000:
97                         freq_tgt_target = 0x254EA;
98                         break;
99                 case 37400:
100                         freq_tgt_target = 0x19EF8;
101                         break;
102                 case 52000:
103                         freq_tgt_target = 0x12A75;
104                         break;
105                 }
106                 break;
107         }
108
109         if (!freq_tgt_target) {
110                 bcma_err(bus, "Unknown TGT frequency for xtalfreq %d\n",
111                          xtalfreq);
112                 return;
113         }
114
115         pll0 = bcma_chipco_pll_read(cc, BCMA_CC_PMU15_PLL_PLLCTL0);
116         freq_tgt_current = (pll0 & BCMA_CC_PMU15_PLL_PC0_FREQTGT_MASK) >>
117                 BCMA_CC_PMU15_PLL_PC0_FREQTGT_SHIFT;
118
119         if (freq_tgt_current == freq_tgt_target) {
120                 bcma_debug(bus, "Target TGT frequency already set\n");
121                 return;
122         }
123
124         /* Turn off PLL */
125         switch (bus->chipinfo.id) {
126         case BCMA_CHIP_ID_BCM43142:
127                 mask = (u32)~(BCMA_RES_4314_HT_AVAIL |
128                               BCMA_RES_4314_MACPHY_CLK_AVAIL);
129
130                 bcma_pmu_mask32(cc, BCMA_CC_PMU_MINRES_MSK, mask);
131                 bcma_pmu_mask32(cc, BCMA_CC_PMU_MAXRES_MSK, mask);
132                 bcma_wait_value(cc->core, BCMA_CLKCTLST,
133                                 BCMA_CLKCTLST_HAVEHT, 0, 20000);
134                 break;
135         }
136
137         pll0 &= ~BCMA_CC_PMU15_PLL_PC0_FREQTGT_MASK;
138         pll0 |= freq_tgt_target << BCMA_CC_PMU15_PLL_PC0_FREQTGT_SHIFT;
139         bcma_chipco_pll_write(cc, BCMA_CC_PMU15_PLL_PLLCTL0, pll0);
140
141         /* Flush */
142         if (cc->pmu.rev >= 2)
143                 bcma_pmu_set32(cc, BCMA_CC_PMU_CTL, BCMA_CC_PMU_CTL_PLL_UPD);
144
145         /* TODO: Do we need to update OTP? */
146 }
147
148 static void bcma_pmu_pll_init(struct bcma_drv_cc *cc)
149 {
150         struct bcma_bus *bus = cc->core->bus;
151         u32 xtalfreq = bcma_pmu_xtalfreq(cc);
152
153         switch (bus->chipinfo.id) {
154         case BCMA_CHIP_ID_BCM43142:
155                 if (xtalfreq == 0)
156                         xtalfreq = 20000;
157                 bcma_pmu2_pll_init0(cc, xtalfreq);
158                 break;
159         }
160 }
161
162 static void bcma_pmu_resources_init(struct bcma_drv_cc *cc)
163 {
164         struct bcma_bus *bus = cc->core->bus;
165         u32 min_msk = 0, max_msk = 0;
166
167         switch (bus->chipinfo.id) {
168         case BCMA_CHIP_ID_BCM4313:
169                 min_msk = 0x200D;
170                 max_msk = 0xFFFF;
171                 break;
172         case BCMA_CHIP_ID_BCM43142:
173                 min_msk = BCMA_RES_4314_LPLDO_PU |
174                           BCMA_RES_4314_PMU_SLEEP_DIS |
175                           BCMA_RES_4314_PMU_BG_PU |
176                           BCMA_RES_4314_CBUCK_LPOM_PU |
177                           BCMA_RES_4314_CBUCK_PFM_PU |
178                           BCMA_RES_4314_CLDO_PU |
179                           BCMA_RES_4314_LPLDO2_LVM |
180                           BCMA_RES_4314_WL_PMU_PU |
181                           BCMA_RES_4314_LDO3P3_PU |
182                           BCMA_RES_4314_OTP_PU |
183                           BCMA_RES_4314_WL_PWRSW_PU |
184                           BCMA_RES_4314_LQ_AVAIL |
185                           BCMA_RES_4314_LOGIC_RET |
186                           BCMA_RES_4314_MEM_SLEEP |
187                           BCMA_RES_4314_MACPHY_RET |
188                           BCMA_RES_4314_WL_CORE_READY;
189                 max_msk = 0x3FFFFFFF;
190                 break;
191         default:
192                 bcma_debug(bus, "PMU resource config unknown or not needed for device 0x%04X\n",
193                            bus->chipinfo.id);
194         }
195
196         /* Set the resource masks. */
197         if (min_msk)
198                 bcma_pmu_write32(cc, BCMA_CC_PMU_MINRES_MSK, min_msk);
199         if (max_msk)
200                 bcma_pmu_write32(cc, BCMA_CC_PMU_MAXRES_MSK, max_msk);
201
202         /*
203          * Add some delay; allow resources to come up and settle.
204          * Delay is required for SoC (early init).
205          */
206         mdelay(2);
207 }
208
209 /* Disable to allow reading SPROM. Don't know the adventages of enabling it. */
210 void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable)
211 {
212         struct bcma_bus *bus = cc->core->bus;
213         u32 val;
214
215         val = bcma_cc_read32(cc, BCMA_CC_CHIPCTL);
216         if (enable) {
217                 val |= BCMA_CHIPCTL_4331_EXTPA_EN;
218                 if (bus->chipinfo.pkg == 9 || bus->chipinfo.pkg == 11)
219                         val |= BCMA_CHIPCTL_4331_EXTPA_ON_GPIO2_5;
220                 else if (bus->chipinfo.rev > 0)
221                         val |= BCMA_CHIPCTL_4331_EXTPA_EN2;
222         } else {
223                 val &= ~BCMA_CHIPCTL_4331_EXTPA_EN;
224                 val &= ~BCMA_CHIPCTL_4331_EXTPA_EN2;
225                 val &= ~BCMA_CHIPCTL_4331_EXTPA_ON_GPIO2_5;
226         }
227         bcma_cc_write32(cc, BCMA_CC_CHIPCTL, val);
228 }
229
230 static void bcma_pmu_workarounds(struct bcma_drv_cc *cc)
231 {
232         struct bcma_bus *bus = cc->core->bus;
233
234         switch (bus->chipinfo.id) {
235         case BCMA_CHIP_ID_BCM4313:
236                 /* enable 12 mA drive strenth for 4313 and set chipControl
237                    register bit 1 */
238                 bcma_chipco_chipctl_maskset(cc, 0,
239                                             ~BCMA_CCTRL_4313_12MA_LED_DRIVE,
240                                             BCMA_CCTRL_4313_12MA_LED_DRIVE);
241                 break;
242         case BCMA_CHIP_ID_BCM4331:
243         case BCMA_CHIP_ID_BCM43431:
244                 /* Ext PA lines must be enabled for tx on BCM4331 */
245                 bcma_chipco_bcm4331_ext_pa_lines_ctl(cc, true);
246                 break;
247         case BCMA_CHIP_ID_BCM43224:
248         case BCMA_CHIP_ID_BCM43421:
249                 /* enable 12 mA drive strenth for 43224 and set chipControl
250                    register bit 15 */
251                 if (bus->chipinfo.rev == 0) {
252                         bcma_cc_maskset32(cc, BCMA_CC_CHIPCTL,
253                                           ~BCMA_CCTRL_43224_GPIO_TOGGLE,
254                                           BCMA_CCTRL_43224_GPIO_TOGGLE);
255                         bcma_chipco_chipctl_maskset(cc, 0,
256                                                     ~BCMA_CCTRL_43224A0_12MA_LED_DRIVE,
257                                                     BCMA_CCTRL_43224A0_12MA_LED_DRIVE);
258                 } else {
259                         bcma_chipco_chipctl_maskset(cc, 0,
260                                                     ~BCMA_CCTRL_43224B0_12MA_LED_DRIVE,
261                                                     BCMA_CCTRL_43224B0_12MA_LED_DRIVE);
262                 }
263                 break;
264         default:
265                 bcma_debug(bus, "Workarounds unknown or not needed for device 0x%04X\n",
266                            bus->chipinfo.id);
267         }
268 }
269
270 void bcma_pmu_early_init(struct bcma_drv_cc *cc)
271 {
272         struct bcma_bus *bus = cc->core->bus;
273         u32 pmucap;
274
275         if (cc->core->id.rev >= 35 &&
276             cc->capabilities_ext & BCMA_CC_CAP_EXT_AOB_PRESENT) {
277                 cc->pmu.core = bcma_find_core(bus, BCMA_CORE_PMU);
278                 if (!cc->pmu.core)
279                         bcma_warn(bus, "Couldn't find expected PMU core");
280         }
281         if (!cc->pmu.core)
282                 cc->pmu.core = cc->core;
283
284         pmucap = bcma_pmu_read32(cc, BCMA_CC_PMU_CAP);
285         cc->pmu.rev = (pmucap & BCMA_CC_PMU_CAP_REVISION);
286
287         bcma_debug(bus, "Found rev %u PMU (capabilities 0x%08X)\n", cc->pmu.rev,
288                    pmucap);
289 }
290
291 void bcma_pmu_init(struct bcma_drv_cc *cc)
292 {
293         if (cc->pmu.rev == 1)
294                 bcma_pmu_mask32(cc, BCMA_CC_PMU_CTL,
295                                 ~BCMA_CC_PMU_CTL_NOILPONW);
296         else
297                 bcma_pmu_set32(cc, BCMA_CC_PMU_CTL,
298                                BCMA_CC_PMU_CTL_NOILPONW);
299
300         bcma_pmu_pll_init(cc);
301         bcma_pmu_resources_init(cc);
302         bcma_pmu_workarounds(cc);
303 }
304
305 u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc)
306 {
307         struct bcma_bus *bus = cc->core->bus;
308
309         switch (bus->chipinfo.id) {
310         case BCMA_CHIP_ID_BCM4313:
311         case BCMA_CHIP_ID_BCM43224:
312         case BCMA_CHIP_ID_BCM43225:
313         case BCMA_CHIP_ID_BCM43227:
314         case BCMA_CHIP_ID_BCM43228:
315         case BCMA_CHIP_ID_BCM4331:
316         case BCMA_CHIP_ID_BCM43421:
317         case BCMA_CHIP_ID_BCM43428:
318         case BCMA_CHIP_ID_BCM43431:
319         case BCMA_CHIP_ID_BCM4716:
320         case BCMA_CHIP_ID_BCM47162:
321         case BCMA_CHIP_ID_BCM4748:
322         case BCMA_CHIP_ID_BCM4749:
323         case BCMA_CHIP_ID_BCM5357:
324         case BCMA_CHIP_ID_BCM53572:
325         case BCMA_CHIP_ID_BCM6362:
326                 /* always 20Mhz */
327                 return 20000 * 1000;
328         case BCMA_CHIP_ID_BCM4706:
329         case BCMA_CHIP_ID_BCM5356:
330                 /* always 25Mhz */
331                 return 25000 * 1000;
332         case BCMA_CHIP_ID_BCM43460:
333         case BCMA_CHIP_ID_BCM4352:
334         case BCMA_CHIP_ID_BCM4360:
335                 if (cc->status & BCMA_CC_CHIPST_4360_XTAL_40MZ)
336                         return 40000 * 1000;
337                 else
338                         return 20000 * 1000;
339         default:
340                 bcma_warn(bus, "No ALP clock specified for %04X device, pmu rev. %d, using default %d Hz\n",
341                           bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_ALP_CLOCK);
342         }
343         return BCMA_CC_PMU_ALP_CLOCK;
344 }
345
346 /* Find the output of the "m" pll divider given pll controls that start with
347  * pllreg "pll0" i.e. 12 for main 6 for phy, 0 for misc.
348  */
349 static u32 bcma_pmu_pll_clock(struct bcma_drv_cc *cc, u32 pll0, u32 m)
350 {
351         u32 tmp, div, ndiv, p1, p2, fc;
352         struct bcma_bus *bus = cc->core->bus;
353
354         BUG_ON((pll0 & 3) || (pll0 > BCMA_CC_PMU4716_MAINPLL_PLL0));
355
356         BUG_ON(!m || m > 4);
357
358         if (bus->chipinfo.id == BCMA_CHIP_ID_BCM5357 ||
359             bus->chipinfo.id == BCMA_CHIP_ID_BCM4749) {
360                 /* Detect failure in clock setting */
361                 tmp = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT);
362                 if (tmp & 0x40000)
363                         return 133 * 1000000;
364         }
365
366         tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_P1P2_OFF);
367         p1 = (tmp & BCMA_CC_PPL_P1_MASK) >> BCMA_CC_PPL_P1_SHIFT;
368         p2 = (tmp & BCMA_CC_PPL_P2_MASK) >> BCMA_CC_PPL_P2_SHIFT;
369
370         tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_M14_OFF);
371         div = (tmp >> ((m - 1) * BCMA_CC_PPL_MDIV_WIDTH)) &
372                 BCMA_CC_PPL_MDIV_MASK;
373
374         tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_NM5_OFF);
375         ndiv = (tmp & BCMA_CC_PPL_NDIV_MASK) >> BCMA_CC_PPL_NDIV_SHIFT;
376
377         /* Do calculation in Mhz */
378         fc = bcma_pmu_get_alp_clock(cc) / 1000000;
379         fc = (p1 * ndiv * fc) / p2;
380
381         /* Return clock in Hertz */
382         return (fc / div) * 1000000;
383 }
384
385 static u32 bcma_pmu_pll_clock_bcm4706(struct bcma_drv_cc *cc, u32 pll0, u32 m)
386 {
387         u32 tmp, ndiv, p1div, p2div;
388         u32 clock;
389
390         BUG_ON(!m || m > 4);
391
392         /* Get N, P1 and P2 dividers to determine CPU clock */
393         tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PMU6_4706_PROCPLL_OFF);
394         ndiv = (tmp & BCMA_CC_PMU6_4706_PROC_NDIV_INT_MASK)
395                 >> BCMA_CC_PMU6_4706_PROC_NDIV_INT_SHIFT;
396         p1div = (tmp & BCMA_CC_PMU6_4706_PROC_P1DIV_MASK)
397                 >> BCMA_CC_PMU6_4706_PROC_P1DIV_SHIFT;
398         p2div = (tmp & BCMA_CC_PMU6_4706_PROC_P2DIV_MASK)
399                 >> BCMA_CC_PMU6_4706_PROC_P2DIV_SHIFT;
400
401         tmp = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT);
402         if (tmp & BCMA_CC_CHIPST_4706_PKG_OPTION)
403                 /* Low cost bonding: Fixed reference clock 25MHz and m = 4 */
404                 clock = (25000000 / 4) * ndiv * p2div / p1div;
405         else
406                 /* Fixed reference clock 25MHz and m = 2 */
407                 clock = (25000000 / 2) * ndiv * p2div / p1div;
408
409         if (m == BCMA_CC_PMU5_MAINPLL_SSB)
410                 clock = clock / 4;
411
412         return clock;
413 }
414
415 /* query bus clock frequency for PMU-enabled chipcommon */
416 u32 bcma_pmu_get_bus_clock(struct bcma_drv_cc *cc)
417 {
418         struct bcma_bus *bus = cc->core->bus;
419
420         switch (bus->chipinfo.id) {
421         case BCMA_CHIP_ID_BCM4716:
422         case BCMA_CHIP_ID_BCM4748:
423         case BCMA_CHIP_ID_BCM47162:
424                 return bcma_pmu_pll_clock(cc, BCMA_CC_PMU4716_MAINPLL_PLL0,
425                                           BCMA_CC_PMU5_MAINPLL_SSB);
426         case BCMA_CHIP_ID_BCM5356:
427                 return bcma_pmu_pll_clock(cc, BCMA_CC_PMU5356_MAINPLL_PLL0,
428                                           BCMA_CC_PMU5_MAINPLL_SSB);
429         case BCMA_CHIP_ID_BCM5357:
430         case BCMA_CHIP_ID_BCM4749:
431                 return bcma_pmu_pll_clock(cc, BCMA_CC_PMU5357_MAINPLL_PLL0,
432                                           BCMA_CC_PMU5_MAINPLL_SSB);
433         case BCMA_CHIP_ID_BCM4706:
434                 return bcma_pmu_pll_clock_bcm4706(cc,
435                                                   BCMA_CC_PMU4706_MAINPLL_PLL0,
436                                                   BCMA_CC_PMU5_MAINPLL_SSB);
437         case BCMA_CHIP_ID_BCM53572:
438                 return 75000000;
439         default:
440                 bcma_warn(bus, "No bus clock specified for %04X device, pmu rev. %d, using default %d Hz\n",
441                           bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_HT_CLOCK);
442         }
443         return BCMA_CC_PMU_HT_CLOCK;
444 }
445 EXPORT_SYMBOL_GPL(bcma_pmu_get_bus_clock);
446
447 /* query cpu clock frequency for PMU-enabled chipcommon */
448 u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc)
449 {
450         struct bcma_bus *bus = cc->core->bus;
451
452         if (bus->chipinfo.id == BCMA_CHIP_ID_BCM53572)
453                 return 300000000;
454
455         /* New PMUs can have different clock for bus and CPU */
456         if (cc->pmu.rev >= 5) {
457                 u32 pll;
458                 switch (bus->chipinfo.id) {
459                 case BCMA_CHIP_ID_BCM4706:
460                         return bcma_pmu_pll_clock_bcm4706(cc,
461                                                 BCMA_CC_PMU4706_MAINPLL_PLL0,
462                                                 BCMA_CC_PMU5_MAINPLL_CPU);
463                 case BCMA_CHIP_ID_BCM5356:
464                         pll = BCMA_CC_PMU5356_MAINPLL_PLL0;
465                         break;
466                 case BCMA_CHIP_ID_BCM5357:
467                 case BCMA_CHIP_ID_BCM4749:
468                         pll = BCMA_CC_PMU5357_MAINPLL_PLL0;
469                         break;
470                 default:
471                         pll = BCMA_CC_PMU4716_MAINPLL_PLL0;
472                         break;
473                 }
474
475                 return bcma_pmu_pll_clock(cc, pll, BCMA_CC_PMU5_MAINPLL_CPU);
476         }
477
478         /* On old PMUs CPU has the same clock as the bus */
479         return bcma_pmu_get_bus_clock(cc);
480 }
481
482 static void bcma_pmu_spuravoid_pll_write(struct bcma_drv_cc *cc, u32 offset,
483                                          u32 value)
484 {
485         bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR, offset);
486         bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_DATA, value);
487 }
488
489 void bcma_pmu_spuravoid_pllupdate(struct bcma_drv_cc *cc, int spuravoid)
490 {
491         u32 tmp = 0;
492         u8 phypll_offset = 0;
493         u8 bcm5357_bcm43236_p1div[] = {0x1, 0x5, 0x5};
494         u8 bcm5357_bcm43236_ndiv[] = {0x30, 0xf6, 0xfc};
495         struct bcma_bus *bus = cc->core->bus;
496
497         switch (bus->chipinfo.id) {
498         case BCMA_CHIP_ID_BCM5357:
499         case BCMA_CHIP_ID_BCM4749:
500         case BCMA_CHIP_ID_BCM53572:
501                 /* 5357[ab]0, 43236[ab]0, and 6362b0 */
502
503                 /* BCM5357 needs to touch PLL1_PLLCTL[02],
504                    so offset PLL0_PLLCTL[02] by 6 */
505                 phypll_offset = (bus->chipinfo.id == BCMA_CHIP_ID_BCM5357 ||
506                        bus->chipinfo.id == BCMA_CHIP_ID_BCM4749 ||
507                        bus->chipinfo.id == BCMA_CHIP_ID_BCM53572) ? 6 : 0;
508
509                 /* RMW only the P1 divider */
510                 bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR,
511                                 BCMA_CC_PMU_PLL_CTL0 + phypll_offset);
512                 tmp = bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_DATA);
513                 tmp &= (~(BCMA_CC_PMU1_PLL0_PC0_P1DIV_MASK));
514                 tmp |= (bcm5357_bcm43236_p1div[spuravoid] << BCMA_CC_PMU1_PLL0_PC0_P1DIV_SHIFT);
515                 bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_DATA, tmp);
516
517                 /* RMW only the int feedback divider */
518                 bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR,
519                                 BCMA_CC_PMU_PLL_CTL2 + phypll_offset);
520                 tmp = bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_DATA);
521                 tmp &= ~(BCMA_CC_PMU1_PLL0_PC2_NDIV_INT_MASK);
522                 tmp |= (bcm5357_bcm43236_ndiv[spuravoid]) << BCMA_CC_PMU1_PLL0_PC2_NDIV_INT_SHIFT;
523                 bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_DATA, tmp);
524
525                 tmp = BCMA_CC_PMU_CTL_PLL_UPD;
526                 break;
527
528         case BCMA_CHIP_ID_BCM4331:
529         case BCMA_CHIP_ID_BCM43431:
530                 if (spuravoid == 2) {
531                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
532                                                      0x11500014);
533                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
534                                                      0x0FC00a08);
535                 } else if (spuravoid == 1) {
536                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
537                                                      0x11500014);
538                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
539                                                      0x0F600a08);
540                 } else {
541                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
542                                                      0x11100014);
543                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
544                                                      0x03000a08);
545                 }
546                 tmp = BCMA_CC_PMU_CTL_PLL_UPD;
547                 break;
548
549         case BCMA_CHIP_ID_BCM43224:
550         case BCMA_CHIP_ID_BCM43225:
551         case BCMA_CHIP_ID_BCM43421:
552                 if (spuravoid == 1) {
553                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
554                                                      0x11500010);
555                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
556                                                      0x000C0C06);
557                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
558                                                      0x0F600a08);
559                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
560                                                      0x00000000);
561                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
562                                                      0x2001E920);
563                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
564                                                      0x88888815);
565                 } else {
566                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
567                                                      0x11100010);
568                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
569                                                      0x000c0c06);
570                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
571                                                      0x03000a08);
572                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
573                                                      0x00000000);
574                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
575                                                      0x200005c0);
576                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
577                                                      0x88888815);
578                 }
579                 tmp = BCMA_CC_PMU_CTL_PLL_UPD;
580                 break;
581
582         case BCMA_CHIP_ID_BCM4716:
583         case BCMA_CHIP_ID_BCM4748:
584         case BCMA_CHIP_ID_BCM47162:
585                 if (spuravoid == 1) {
586                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
587                                                      0x11500060);
588                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
589                                                      0x080C0C06);
590                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
591                                                      0x0F600000);
592                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
593                                                      0x00000000);
594                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
595                                                      0x2001E924);
596                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
597                                                      0x88888815);
598                 } else {
599                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
600                                                      0x11100060);
601                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
602                                                      0x080c0c06);
603                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
604                                                      0x03000000);
605                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
606                                                      0x00000000);
607                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
608                                                      0x200005c0);
609                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
610                                                      0x88888815);
611                 }
612
613                 tmp = BCMA_CC_PMU_CTL_PLL_UPD | BCMA_CC_PMU_CTL_NOILPONW;
614                 break;
615
616         case BCMA_CHIP_ID_BCM43131:
617         case BCMA_CHIP_ID_BCM43217:
618         case BCMA_CHIP_ID_BCM43227:
619         case BCMA_CHIP_ID_BCM43228:
620         case BCMA_CHIP_ID_BCM43428:
621                 /* LCNXN */
622                 /* PLL Settings for spur avoidance on/off mode,
623                    no on2 support for 43228A0 */
624                 if (spuravoid == 1) {
625                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
626                                                      0x01100014);
627                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
628                                                      0x040C0C06);
629                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
630                                                      0x03140A08);
631                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
632                                                      0x00333333);
633                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
634                                                      0x202C2820);
635                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
636                                                      0x88888815);
637                 } else {
638                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
639                                                      0x11100014);
640                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
641                                                      0x040c0c06);
642                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
643                                                      0x03000a08);
644                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
645                                                      0x00000000);
646                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
647                                                      0x200005c0);
648                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
649                                                      0x88888815);
650                 }
651                 tmp = BCMA_CC_PMU_CTL_PLL_UPD;
652                 break;
653         default:
654                 bcma_err(bus, "Unknown spuravoidance settings for chip 0x%04X, not changing PLL\n",
655                          bus->chipinfo.id);
656                 break;
657         }
658
659         tmp |= bcma_pmu_read32(cc, BCMA_CC_PMU_CTL);
660         bcma_pmu_write32(cc, BCMA_CC_PMU_CTL, tmp);
661 }
662 EXPORT_SYMBOL_GPL(bcma_pmu_spuravoid_pllupdate);