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Merge branch 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux.git] / drivers / bcma / driver_chipcommon_pmu.c
CommitLineData
8369ae33
RM		 1/*
2 * Broadcom specific AMBA
3 * ChipCommon Power Management Unit driver
4 *
eb032b98 5 * Copyright 2009, Michael Buesch <[email protected]>
c586e109
HM		 6 * Copyright 2007, 2011, Broadcom Corporation
7 * Copyright 2011, 2012, Hauke Mehrtens <[email protected]>
8369ae33
RM		 8 *
9 * Licensed under the GNU/GPL. See COPYING for details.
10 */
11
12#include "bcma_private.h"
44a8e377 13#include <linux/export.h>
8369ae33
RM		 14#include <linux/bcma/bcma.h>
15
8d4b9e31 16u32 bcma_chipco_pll_read(struct bcma_drv_cc *cc, u32 offset)
908debc8
HM		 17{
18 bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset);
19 bcma_cc_read32(cc, BCMA_CC_PLLCTL_ADDR);
20 return bcma_cc_read32(cc, BCMA_CC_PLLCTL_DATA);
21}
8d4b9e31 22EXPORT_SYMBOL_GPL(bcma_chipco_pll_read);
908debc8 23
3861b2c5 24void bcma_chipco_pll_write(struct bcma_drv_cc *cc, u32 offset, u32 value)
8369ae33 25{
3861b2c5
RM		 26 bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset);
27 bcma_cc_read32(cc, BCMA_CC_PLLCTL_ADDR);
28 bcma_cc_write32(cc, BCMA_CC_PLLCTL_DATA, value);
29}
30EXPORT_SYMBOL_GPL(bcma_chipco_pll_write);
8369ae33 31
3861b2c5
RM		 32void bcma_chipco_pll_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask,
33 u32 set)
34{
35 bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset);
36 bcma_cc_read32(cc, BCMA_CC_PLLCTL_ADDR);
37 bcma_cc_maskset32(cc, BCMA_CC_PLLCTL_DATA, mask, set);
38}
39EXPORT_SYMBOL_GPL(bcma_chipco_pll_maskset);
40
41void bcma_chipco_chipctl_maskset(struct bcma_drv_cc *cc,
42 u32 offset, u32 mask, u32 set)
43{
8369ae33
RM		 44 bcma_cc_write32(cc, BCMA_CC_CHIPCTL_ADDR, offset);
45 bcma_cc_read32(cc, BCMA_CC_CHIPCTL_ADDR);
3861b2c5
RM		 46 bcma_cc_maskset32(cc, BCMA_CC_CHIPCTL_DATA, mask, set);
47}
48EXPORT_SYMBOL_GPL(bcma_chipco_chipctl_maskset);
49
50void bcma_chipco_regctl_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask,
51 u32 set)
52{
53 bcma_cc_write32(cc, BCMA_CC_REGCTL_ADDR, offset);
54 bcma_cc_read32(cc, BCMA_CC_REGCTL_ADDR);
55 bcma_cc_maskset32(cc, BCMA_CC_REGCTL_DATA, mask, set);
8369ae33 56}
3861b2c5 57EXPORT_SYMBOL_GPL(bcma_chipco_regctl_maskset);
8369ae33 58
88f9b65d
RM		 59static u32 bcma_pmu_xtalfreq(struct bcma_drv_cc *cc)
60{
61 u32 ilp_ctl, alp_hz;
62
63 if (!(bcma_cc_read32(cc, BCMA_CC_PMU_STAT) &
64 BCMA_CC_PMU_STAT_EXT_LPO_AVAIL))
65 return 0;
66
67 bcma_cc_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_cc_read32(cc, BCMA_CC_PMU_XTAL_FREQ);
72 ilp_ctl &= BCMA_CC_PMU_XTAL_FREQ_ILPCTL_MASK;
73
74 bcma_cc_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
80static 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_cc_mask32(cc, BCMA_CC_PMU_MINRES_MSK, mask);
131 bcma_cc_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_cc_set32(cc, BCMA_CC_PMU_CTL, BCMA_CC_PMU_CTL_PLL_UPD);
144
145 /* TODO: Do we need to update OTP? */
146}
147
148static 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
8369ae33
RM		 162static 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) {
4b4f5be2 168 case BCMA_CHIP_ID_BCM4313:
8369ae33
RM		 169 min_msk = 0x200D;
170 max_msk = 0xFFFF;
171 break;
88f9b65d
RM		 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;
8369ae33 191 default:
3d9d8af3
RM		 192 bcma_debug(bus, "PMU resource config unknown or not needed for device 0x%04X\n",
193 bus->chipinfo.id);
8369ae33
RM		 194 }
195
196 /* Set the resource masks. */
197 if (min_msk)
198 bcma_cc_write32(cc, BCMA_CC_PMU_MINRES_MSK, min_msk);
199 if (max_msk)
200 bcma_cc_write32(cc, BCMA_CC_PMU_MAXRES_MSK, max_msk);
4795f096 201
1fd41a65
RM		 202 /*
203 * Add some delay; allow resources to come up and settle.
204 * Delay is required for SoC (early init).
205 */
4795f096 206 mdelay(2);
8369ae33
RM		 207}
208
984e5bef
RM		 209/* Disable to allow reading SPROM. Don't know the adventages of enabling it. */
210void 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;
00eeedcf
HM		 220 else if (bus->chipinfo.rev > 0)
221 val |= BCMA_CHIPCTL_4331_EXTPA_EN2;
984e5bef
RM		 222 } else {
223 val &= ~BCMA_CHIPCTL_4331_EXTPA_EN;
00eeedcf 224 val &= ~BCMA_CHIPCTL_4331_EXTPA_EN2;
984e5bef
RM		 225 val &= ~BCMA_CHIPCTL_4331_EXTPA_ON_GPIO2_5;
226 }
227 bcma_cc_write32(cc, BCMA_CC_CHIPCTL, val);
228}
229
94f3457f 230static void bcma_pmu_workarounds(struct bcma_drv_cc *cc)
8369ae33
RM		 231{
232 struct bcma_bus *bus = cc->core->bus;
233
234 switch (bus->chipinfo.id) {
4b4f5be2 235 case BCMA_CHIP_ID_BCM4313:
b9562545
HM		 236 /* enable 12 mA drive strenth for 4313 and set chipControl
237 register bit 1 */
238 bcma_chipco_chipctl_maskset(cc, 0,
1f03bf06 239 ~BCMA_CCTRL_4313_12MA_LED_DRIVE,
b9562545 240 BCMA_CCTRL_4313_12MA_LED_DRIVE);
8369ae33 241 break;
4b4f5be2
HM		 242 case BCMA_CHIP_ID_BCM4331:
243 case BCMA_CHIP_ID_BCM43431:
69aaedd3
SF		 244 /* Ext PA lines must be enabled for tx on BCM4331 */
245 bcma_chipco_bcm4331_ext_pa_lines_ctl(cc, true);
8369ae33 246 break;
4b4f5be2 247 case BCMA_CHIP_ID_BCM43224:
b9562545
HM		 248 case BCMA_CHIP_ID_BCM43421:
249 /* enable 12 mA drive strenth for 43224 and set chipControl
250 register bit 15 */
8369ae33 251 if (bus->chipinfo.rev == 0) {
b9562545 252 bcma_cc_maskset32(cc, BCMA_CC_CHIPCTL,
1f03bf06 253 ~BCMA_CCTRL_43224_GPIO_TOGGLE,
b9562545
HM		 254 BCMA_CCTRL_43224_GPIO_TOGGLE);
255 bcma_chipco_chipctl_maskset(cc, 0,
1f03bf06 256 ~BCMA_CCTRL_43224A0_12MA_LED_DRIVE,
b9562545 257 BCMA_CCTRL_43224A0_12MA_LED_DRIVE);
8369ae33 258 } else {
b9562545 259 bcma_chipco_chipctl_maskset(cc, 0,
1f03bf06 260 ~BCMA_CCTRL_43224B0_12MA_LED_DRIVE,
b9562545 261 BCMA_CCTRL_43224B0_12MA_LED_DRIVE);
8369ae33
RM		 262 }
263 break;
264 default:
3d9d8af3
RM		 265 bcma_debug(bus, "Workarounds unknown or not needed for device 0x%04X\n",
266 bus->chipinfo.id);
8369ae33
RM		 267 }
268}
269
49655bb8 270void bcma_pmu_early_init(struct bcma_drv_cc *cc)
8369ae33
RM		 271{
272 u32 pmucap;
273
274 pmucap = bcma_cc_read32(cc, BCMA_CC_PMU_CAP);
275 cc->pmu.rev = (pmucap & BCMA_CC_PMU_CAP_REVISION);
276
3d9d8af3
RM		 277 bcma_debug(cc->core->bus, "Found rev %u PMU (capabilities 0x%08X)\n",
278 cc->pmu.rev, pmucap);
49655bb8 279}
8369ae33 280
49655bb8
HM		 281void bcma_pmu_init(struct bcma_drv_cc *cc)
282{
8369ae33
RM		 283 if (cc->pmu.rev == 1)
284 bcma_cc_mask32(cc, BCMA_CC_PMU_CTL,
285 ~BCMA_CC_PMU_CTL_NOILPONW);
286 else
287 bcma_cc_set32(cc, BCMA_CC_PMU_CTL,
288 BCMA_CC_PMU_CTL_NOILPONW);
289
88f9b65d 290 bcma_pmu_pll_init(cc);
8369ae33 291 bcma_pmu_resources_init(cc);
8369ae33
RM		 292 bcma_pmu_workarounds(cc);
293}
e3afe0e5 294
5b5ac414 295u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc)
e3afe0e5
HM		 296{
297 struct bcma_bus *bus = cc->core->bus;
298
299 switch (bus->chipinfo.id) {
d6b688cf
HM		 300 case BCMA_CHIP_ID_BCM4313:
301 case BCMA_CHIP_ID_BCM43224:
302 case BCMA_CHIP_ID_BCM43225:
303 case BCMA_CHIP_ID_BCM43227:
304 case BCMA_CHIP_ID_BCM43228:
305 case BCMA_CHIP_ID_BCM4331:
306 case BCMA_CHIP_ID_BCM43421:
307 case BCMA_CHIP_ID_BCM43428:
308 case BCMA_CHIP_ID_BCM43431:
4b4f5be2 309 case BCMA_CHIP_ID_BCM4716:
4b4f5be2 310 case BCMA_CHIP_ID_BCM47162:
d6b688cf 311 case BCMA_CHIP_ID_BCM4748:
4b4f5be2 312 case BCMA_CHIP_ID_BCM4749:
d6b688cf 313 case BCMA_CHIP_ID_BCM5357:
4b4f5be2 314 case BCMA_CHIP_ID_BCM53572:
d6b688cf 315 case BCMA_CHIP_ID_BCM6362:
e3afe0e5
HM		 316 /* always 20Mhz */
317 return 20000 * 1000;
4b4f5be2 318 case BCMA_CHIP_ID_BCM4706:
d6b688cf 319 case BCMA_CHIP_ID_BCM5356:
e3afe0e5
HM		 320 /* always 25Mhz */
321 return 25000 * 1000;
d6b688cf
HM		 322 case BCMA_CHIP_ID_BCM43460:
323 case BCMA_CHIP_ID_BCM4352:
324 case BCMA_CHIP_ID_BCM4360:
325 if (cc->status & BCMA_CC_CHIPST_4360_XTAL_40MZ)
326 return 40000 * 1000;
327 else
328 return 20000 * 1000;
e3afe0e5 329 default:
3d9d8af3
RM		 330 bcma_warn(bus, "No ALP clock specified for %04X device, pmu rev. %d, using default %d Hz\n",
331 bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_ALP_CLOCK);
e3afe0e5
HM		 332 }
333 return BCMA_CC_PMU_ALP_CLOCK;
334}
908debc8
HM		 335
336/* Find the output of the "m" pll divider given pll controls that start with
337 * pllreg "pll0" i.e. 12 for main 6 for phy, 0 for misc.
338 */
5b5ac414 339static u32 bcma_pmu_pll_clock(struct bcma_drv_cc *cc, u32 pll0, u32 m)
908debc8
HM		 340{
341 u32 tmp, div, ndiv, p1, p2, fc;
342 struct bcma_bus *bus = cc->core->bus;
343
344 BUG_ON((pll0 & 3) || (pll0 > BCMA_CC_PMU4716_MAINPLL_PLL0));
345
346 BUG_ON(!m || m > 4);
347
4b4f5be2
HM		 348 if (bus->chipinfo.id == BCMA_CHIP_ID_BCM5357 ||
349 bus->chipinfo.id == BCMA_CHIP_ID_BCM4749) {
908debc8
HM		 350 /* Detect failure in clock setting */
351 tmp = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT);
352 if (tmp & 0x40000)
353 return 133 * 1000000;
354 }
355
356 tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_P1P2_OFF);
357 p1 = (tmp & BCMA_CC_PPL_P1_MASK) >> BCMA_CC_PPL_P1_SHIFT;
358 p2 = (tmp & BCMA_CC_PPL_P2_MASK) >> BCMA_CC_PPL_P2_SHIFT;
359
360 tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_M14_OFF);
361 div = (tmp >> ((m - 1) * BCMA_CC_PPL_MDIV_WIDTH)) &
362 BCMA_CC_PPL_MDIV_MASK;
363
364 tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_NM5_OFF);
365 ndiv = (tmp & BCMA_CC_PPL_NDIV_MASK) >> BCMA_CC_PPL_NDIV_SHIFT;
366
367 /* Do calculation in Mhz */
5b5ac414 368 fc = bcma_pmu_get_alp_clock(cc) / 1000000;
908debc8
HM		 369 fc = (p1 * ndiv * fc) / p2;
370
371 /* Return clock in Hertz */
372 return (fc / div) * 1000000;
373}
374
5b5ac414 375static u32 bcma_pmu_pll_clock_bcm4706(struct bcma_drv_cc *cc, u32 pll0, u32 m)
650cef38
HM		 376{
377 u32 tmp, ndiv, p1div, p2div;
378 u32 clock;
379
380 BUG_ON(!m || m > 4);
381
382 /* Get N, P1 and P2 dividers to determine CPU clock */
383 tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PMU6_4706_PROCPLL_OFF);
384 ndiv = (tmp & BCMA_CC_PMU6_4706_PROC_NDIV_INT_MASK)
385 >> BCMA_CC_PMU6_4706_PROC_NDIV_INT_SHIFT;
386 p1div = (tmp & BCMA_CC_PMU6_4706_PROC_P1DIV_MASK)
387 >> BCMA_CC_PMU6_4706_PROC_P1DIV_SHIFT;
388 p2div = (tmp & BCMA_CC_PMU6_4706_PROC_P2DIV_MASK)
389 >> BCMA_CC_PMU6_4706_PROC_P2DIV_SHIFT;
390
391 tmp = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT);
392 if (tmp & BCMA_CC_CHIPST_4706_PKG_OPTION)
393 /* Low cost bonding: Fixed reference clock 25MHz and m = 4 */
394 clock = (25000000 / 4) * ndiv * p2div / p1div;
395 else
396 /* Fixed reference clock 25MHz and m = 2 */
397 clock = (25000000 / 2) * ndiv * p2div / p1div;
398
399 if (m == BCMA_CC_PMU5_MAINPLL_SSB)
400 clock = clock / 4;
401
402 return clock;
403}
404
908debc8 405/* query bus clock frequency for PMU-enabled chipcommon */
dd4544f0 406u32 bcma_pmu_get_bus_clock(struct bcma_drv_cc *cc)
908debc8
HM		 407{
408 struct bcma_bus *bus = cc->core->bus;
409
410 switch (bus->chipinfo.id) {
4b4f5be2
HM		 411 case BCMA_CHIP_ID_BCM4716:
412 case BCMA_CHIP_ID_BCM4748:
413 case BCMA_CHIP_ID_BCM47162:
5b5ac414
RM		 414 return bcma_pmu_pll_clock(cc, BCMA_CC_PMU4716_MAINPLL_PLL0,
415 BCMA_CC_PMU5_MAINPLL_SSB);
4b4f5be2 416 case BCMA_CHIP_ID_BCM5356:
5b5ac414
RM		 417 return bcma_pmu_pll_clock(cc, BCMA_CC_PMU5356_MAINPLL_PLL0,
418 BCMA_CC_PMU5_MAINPLL_SSB);
4b4f5be2
HM		 419 case BCMA_CHIP_ID_BCM5357:
420 case BCMA_CHIP_ID_BCM4749:
5b5ac414
RM		 421 return bcma_pmu_pll_clock(cc, BCMA_CC_PMU5357_MAINPLL_PLL0,
422 BCMA_CC_PMU5_MAINPLL_SSB);
4b4f5be2 423 case BCMA_CHIP_ID_BCM4706:
5b5ac414
RM		 424 return bcma_pmu_pll_clock_bcm4706(cc,
425 BCMA_CC_PMU4706_MAINPLL_PLL0,
426 BCMA_CC_PMU5_MAINPLL_SSB);
4b4f5be2 427 case BCMA_CHIP_ID_BCM53572:
908debc8
HM		 428 return 75000000;
429 default:
5b5ac414 430 bcma_warn(bus, "No bus clock specified for %04X device, pmu rev. %d, using default %d Hz\n",
3d9d8af3 431 bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_HT_CLOCK);
908debc8
HM		 432 }
433 return BCMA_CC_PMU_HT_CLOCK;
434}
dd4544f0 435EXPORT_SYMBOL_GPL(bcma_pmu_get_bus_clock);
908debc8
HM		 436
437/* query cpu clock frequency for PMU-enabled chipcommon */
5b5ac414 438u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc)
908debc8
HM		 439{
440 struct bcma_bus *bus = cc->core->bus;
441
4b4f5be2 442 if (bus->chipinfo.id == BCMA_CHIP_ID_BCM53572)
908debc8
HM		 443 return 300000000;
444
5b5ac414 445 /* New PMUs can have different clock for bus and CPU */
908debc8
HM		 446 if (cc->pmu.rev >= 5) {
447 u32 pll;
448 switch (bus->chipinfo.id) {
650cef38 449 case BCMA_CHIP_ID_BCM4706:
5b5ac414 450 return bcma_pmu_pll_clock_bcm4706(cc,
650cef38
HM		 451 BCMA_CC_PMU4706_MAINPLL_PLL0,
452 BCMA_CC_PMU5_MAINPLL_CPU);
4b4f5be2 453 case BCMA_CHIP_ID_BCM5356:
908debc8
HM		 454 pll = BCMA_CC_PMU5356_MAINPLL_PLL0;
455 break;
4b4f5be2
HM		 456 case BCMA_CHIP_ID_BCM5357:
457 case BCMA_CHIP_ID_BCM4749:
908debc8
HM		 458 pll = BCMA_CC_PMU5357_MAINPLL_PLL0;
459 break;
460 default:
461 pll = BCMA_CC_PMU4716_MAINPLL_PLL0;
462 break;
463 }
464
5b5ac414 465 return bcma_pmu_pll_clock(cc, pll, BCMA_CC_PMU5_MAINPLL_CPU);
908debc8
HM		 466 }
467
5b5ac414
RM		 468 /* On old PMUs CPU has the same clock as the bus */
469 return bcma_pmu_get_bus_clock(cc);
908debc8 470}
c586e109
HM		 471
472static void bcma_pmu_spuravoid_pll_write(struct bcma_drv_cc *cc, u32 offset,
473 u32 value)
474{
475 bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset);
476 bcma_cc_write32(cc, BCMA_CC_PLLCTL_DATA, value);
477}
478
479void bcma_pmu_spuravoid_pllupdate(struct bcma_drv_cc *cc, int spuravoid)
480{
481 u32 tmp = 0;
482 u8 phypll_offset = 0;
483 u8 bcm5357_bcm43236_p1div[] = {0x1, 0x5, 0x5};
484 u8 bcm5357_bcm43236_ndiv[] = {0x30, 0xf6, 0xfc};
485 struct bcma_bus *bus = cc->core->bus;
486
487 switch (bus->chipinfo.id) {
488 case BCMA_CHIP_ID_BCM5357:
489 case BCMA_CHIP_ID_BCM4749:
490 case BCMA_CHIP_ID_BCM53572:
491 /* 5357[ab]0, 43236[ab]0, and 6362b0 */
492
493 /* BCM5357 needs to touch PLL1_PLLCTL[02],
494 so offset PLL0_PLLCTL[02] by 6 */
495 phypll_offset = (bus->chipinfo.id == BCMA_CHIP_ID_BCM5357 ||
496 bus->chipinfo.id == BCMA_CHIP_ID_BCM4749 ||
497 bus->chipinfo.id == BCMA_CHIP_ID_BCM53572) ? 6 : 0;
498
499 /* RMW only the P1 divider */
500 bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR,
501 BCMA_CC_PMU_PLL_CTL0 + phypll_offset);
502 tmp = bcma_cc_read32(cc, BCMA_CC_PLLCTL_DATA);
503 tmp &= (~(BCMA_CC_PMU1_PLL0_PC0_P1DIV_MASK));
504 tmp |= (bcm5357_bcm43236_p1div[spuravoid] << BCMA_CC_PMU1_PLL0_PC0_P1DIV_SHIFT);
505 bcma_cc_write32(cc, BCMA_CC_PLLCTL_DATA, tmp);
506
507 /* RMW only the int feedback divider */
508 bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR,
509 BCMA_CC_PMU_PLL_CTL2 + phypll_offset);
510 tmp = bcma_cc_read32(cc, BCMA_CC_PLLCTL_DATA);
511 tmp &= ~(BCMA_CC_PMU1_PLL0_PC2_NDIV_INT_MASK);
512 tmp |= (bcm5357_bcm43236_ndiv[spuravoid]) << BCMA_CC_PMU1_PLL0_PC2_NDIV_INT_SHIFT;
513 bcma_cc_write32(cc, BCMA_CC_PLLCTL_DATA, tmp);
514
e3f2ae17 515 tmp = BCMA_CC_PMU_CTL_PLL_UPD;
c586e109
HM		 516 break;
517
518 case BCMA_CHIP_ID_BCM4331:
519 case BCMA_CHIP_ID_BCM43431:
520 if (spuravoid == 2) {
521 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
522 0x11500014);
523 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
524 0x0FC00a08);
525 } else if (spuravoid == 1) {
526 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
527 0x11500014);
528 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
529 0x0F600a08);
530 } else {
531 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
532 0x11100014);
533 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
534 0x03000a08);
535 }
e3f2ae17 536 tmp = BCMA_CC_PMU_CTL_PLL_UPD;
c586e109
HM		 537 break;
538
539 case BCMA_CHIP_ID_BCM43224:
540 case BCMA_CHIP_ID_BCM43225:
541 case BCMA_CHIP_ID_BCM43421:
542 if (spuravoid == 1) {
543 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
544 0x11500010);
545 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
546 0x000C0C06);
547 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
548 0x0F600a08);
549 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
550 0x00000000);
551 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
552 0x2001E920);
553 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
554 0x88888815);
555 } else {
556 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
557 0x11100010);
558 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
559 0x000c0c06);
560 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
561 0x03000a08);
562 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
563 0x00000000);
564 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
565 0x200005c0);
566 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
567 0x88888815);
568 }
e3f2ae17 569 tmp = BCMA_CC_PMU_CTL_PLL_UPD;
c586e109
HM		 570 break;
571
572 case BCMA_CHIP_ID_BCM4716:
573 case BCMA_CHIP_ID_BCM4748:
574 case BCMA_CHIP_ID_BCM47162:
575 if (spuravoid == 1) {
576 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
577 0x11500060);
578 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
579 0x080C0C06);
580 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
581 0x0F600000);
582 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
583 0x00000000);
584 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
585 0x2001E924);
586 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
587 0x88888815);
588 } else {
589 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
590 0x11100060);
591 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
592 0x080c0c06);
593 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
594 0x03000000);
595 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
596 0x00000000);
597 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
598 0x200005c0);
599 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
600 0x88888815);
601 }
602
e3f2ae17 603 tmp = BCMA_CC_PMU_CTL_PLL_UPD | BCMA_CC_PMU_CTL_NOILPONW;
c586e109
HM		 604 break;
605
27cfdb05 606 case BCMA_CHIP_ID_BCM43131:
d1d3799f 607 case BCMA_CHIP_ID_BCM43217:
c586e109
HM		 608 case BCMA_CHIP_ID_BCM43227:
609 case BCMA_CHIP_ID_BCM43228:
610 case BCMA_CHIP_ID_BCM43428:
611 /* LCNXN */
612 /* PLL Settings for spur avoidance on/off mode,
613 no on2 support for 43228A0 */
614 if (spuravoid == 1) {
615 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
616 0x01100014);
617 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
618 0x040C0C06);
619 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
620 0x03140A08);
621 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
622 0x00333333);
623 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
624 0x202C2820);
625 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
626 0x88888815);
627 } else {
628 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
629 0x11100014);
630 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
631 0x040c0c06);
632 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
633 0x03000a08);
634 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
635 0x00000000);
636 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
637 0x200005c0);
638 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
639 0x88888815);
640 }
e3f2ae17 641 tmp = BCMA_CC_PMU_CTL_PLL_UPD;
c586e109
HM		 642 break;
643 default:
3d9d8af3
RM		 644 bcma_err(bus, "Unknown spuravoidance settings for chip 0x%04X, not changing PLL\n",
645 bus->chipinfo.id);
c586e109
HM		 646 break;
647 }
648
649 tmp |= bcma_cc_read32(cc, BCMA_CC_PMU_CTL);
650 bcma_cc_write32(cc, BCMA_CC_PMU_CTL, tmp);
651}
652EXPORT_SYMBOL_GPL(bcma_pmu_spuravoid_pllupdate);
Empty description
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