drivers/bcma/driver_chipcommon_pmu.c

   1 /*
   2  * Broadcom specific AMBA
   3  * ChipCommon Power Management Unit driver
   4  *
   5  * Copyright 2009, Michael Buesch <[email protected]>
   6  * Copyright 2007, 2011, Broadcom Corporation
   7  * Copyright 2011, 2012, Hauke Mehrtens <[email protected]>
   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_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 }
  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_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 }
  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_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 }
  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_cc_write32(cc, BCMA_CC_CHIPCTL_ADDR, offset);
  45         bcma_cc_read32(cc, BCMA_CC_CHIPCTL_ADDR);
  46         bcma_cc_maskset32(cc, BCMA_CC_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_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);
  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_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
  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_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
 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_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);
 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         u32 pmucap;
 273
 274         pmucap = bcma_cc_read32(cc, BCMA_CC_PMU_CAP);
 275         cc->pmu.rev = (pmucap & BCMA_CC_PMU_CAP_REVISION);
 276
 277         bcma_debug(cc->core->bus, "Found rev %u PMU (capabilities 0x%08X)\n",
 278                    cc->pmu.rev, pmucap);
 279 }
 280
 281 void bcma_pmu_init(struct bcma_drv_cc *cc)
 282 {
 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
 290         bcma_pmu_pll_init(cc);
 291         bcma_pmu_resources_init(cc);
 292         bcma_pmu_workarounds(cc);
 293 }
 294
 295 u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc)
 296 {
 297         struct bcma_bus *bus = cc->core->bus;
 298
 299         switch (bus->chipinfo.id) {
 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:
 309         case BCMA_CHIP_ID_BCM4716:
 310         case BCMA_CHIP_ID_BCM47162:
 311         case BCMA_CHIP_ID_BCM4748:
 312         case BCMA_CHIP_ID_BCM4749:
 313         case BCMA_CHIP_ID_BCM5357:
 314         case BCMA_CHIP_ID_BCM53572:
 315         case BCMA_CHIP_ID_BCM6362:
 316                 /* always 20Mhz */
 317                 return 20000 * 1000;
 318         case BCMA_CHIP_ID_BCM4706:
 319         case BCMA_CHIP_ID_BCM5356:
 320                 /* always 25Mhz */
 321                 return 25000 * 1000;
 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;
 329         default:
 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);
 332         }
 333         return BCMA_CC_PMU_ALP_CLOCK;
 334 }
 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  */
 339 static u32 bcma_pmu_pll_clock(struct bcma_drv_cc *cc, u32 pll0, u32 m)
 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
 348         if (bus->chipinfo.id == BCMA_CHIP_ID_BCM5357 ||
 349             bus->chipinfo.id == BCMA_CHIP_ID_BCM4749) {
 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 */
 368         fc = bcma_pmu_get_alp_clock(cc) / 1000000;
 369         fc = (p1 * ndiv * fc) / p2;
 370
 371         /* Return clock in Hertz */
 372         return (fc / div) * 1000000;
 373 }
 374
 375 static u32 bcma_pmu_pll_clock_bcm4706(struct bcma_drv_cc *cc, u32 pll0, u32 m)
 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
 405 /* query bus clock frequency for PMU-enabled chipcommon */
 406 u32 bcma_pmu_get_bus_clock(struct bcma_drv_cc *cc)
 407 {
 408         struct bcma_bus *bus = cc->core->bus;
 409
 410         switch (bus->chipinfo.id) {
 411         case BCMA_CHIP_ID_BCM4716:
 412         case BCMA_CHIP_ID_BCM4748:
 413         case BCMA_CHIP_ID_BCM47162:
 414                 return bcma_pmu_pll_clock(cc, BCMA_CC_PMU4716_MAINPLL_PLL0,
 415                                           BCMA_CC_PMU5_MAINPLL_SSB);
 416         case BCMA_CHIP_ID_BCM5356:
 417                 return bcma_pmu_pll_clock(cc, BCMA_CC_PMU5356_MAINPLL_PLL0,
 418                                           BCMA_CC_PMU5_MAINPLL_SSB);
 419         case BCMA_CHIP_ID_BCM5357:
 420         case BCMA_CHIP_ID_BCM4749:
 421                 return bcma_pmu_pll_clock(cc, BCMA_CC_PMU5357_MAINPLL_PLL0,
 422                                           BCMA_CC_PMU5_MAINPLL_SSB);
 423         case BCMA_CHIP_ID_BCM4706:
 424                 return bcma_pmu_pll_clock_bcm4706(cc,
 425                                                   BCMA_CC_PMU4706_MAINPLL_PLL0,
 426                                                   BCMA_CC_PMU5_MAINPLL_SSB);
 427         case BCMA_CHIP_ID_BCM53572:
 428                 return 75000000;
 429         default:
 430                 bcma_warn(bus, "No bus clock specified for %04X device, pmu rev. %d, using default %d Hz\n",
 431                           bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_HT_CLOCK);
 432         }
 433         return BCMA_CC_PMU_HT_CLOCK;
 434 }
 435 EXPORT_SYMBOL_GPL(bcma_pmu_get_bus_clock);
 436
 437 /* query cpu clock frequency for PMU-enabled chipcommon */
 438 u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc)
 439 {
 440         struct bcma_bus *bus = cc->core->bus;
 441
 442         if (bus->chipinfo.id == BCMA_CHIP_ID_BCM53572)
 443                 return 300000000;
 444
 445         /* New PMUs can have different clock for bus and CPU */
 446         if (cc->pmu.rev >= 5) {
 447                 u32 pll;
 448                 switch (bus->chipinfo.id) {
 449                 case BCMA_CHIP_ID_BCM4706:
 450                         return bcma_pmu_pll_clock_bcm4706(cc,
 451                                                 BCMA_CC_PMU4706_MAINPLL_PLL0,
 452                                                 BCMA_CC_PMU5_MAINPLL_CPU);
 453                 case BCMA_CHIP_ID_BCM5356:
 454                         pll = BCMA_CC_PMU5356_MAINPLL_PLL0;
 455                         break;
 456                 case BCMA_CHIP_ID_BCM5357:
 457                 case BCMA_CHIP_ID_BCM4749:
 458                         pll = BCMA_CC_PMU5357_MAINPLL_PLL0;
 459                         break;
 460                 default:
 461                         pll = BCMA_CC_PMU4716_MAINPLL_PLL0;
 462                         break;
 463                 }
 464
 465                 return bcma_pmu_pll_clock(cc, pll, BCMA_CC_PMU5_MAINPLL_CPU);
 466         }
 467
 468         /* On old PMUs CPU has the same clock as the bus */
 469         return bcma_pmu_get_bus_clock(cc);
 470 }
 471
 472 static 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
 479 void 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
 515                 tmp = BCMA_CC_PMU_CTL_PLL_UPD;
 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                 }
 536                 tmp = BCMA_CC_PMU_CTL_PLL_UPD;
 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                 }
 569                 tmp = BCMA_CC_PMU_CTL_PLL_UPD;
 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
 603                 tmp = BCMA_CC_PMU_CTL_PLL_UPD | BCMA_CC_PMU_CTL_NOILPONW;
 604                 break;
 605
 606         case BCMA_CHIP_ID_BCM43227:
 607         case BCMA_CHIP_ID_BCM43228:
 608         case BCMA_CHIP_ID_BCM43428:
 609                 /* LCNXN */
 610                 /* PLL Settings for spur avoidance on/off mode,
 611                    no on2 support for 43228A0 */
 612                 if (spuravoid == 1) {
 613                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
 614                                                      0x01100014);
 615                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
 616                                                      0x040C0C06);
 617                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
 618                                                      0x03140A08);
 619                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
 620                                                      0x00333333);
 621                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
 622                                                      0x202C2820);
 623                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
 624                                                      0x88888815);
 625                 } else {
 626                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
 627                                                      0x11100014);
 628                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
 629                                                      0x040c0c06);
 630                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
 631                                                      0x03000a08);
 632                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
 633                                                      0x00000000);
 634                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
 635                                                      0x200005c0);
 636                         bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
 637                                                      0x88888815);
 638                 }
 639                 tmp = BCMA_CC_PMU_CTL_PLL_UPD;
 640                 break;
 641         default:
 642                 bcma_err(bus, "Unknown spuravoidance settings for chip 0x%04X, not changing PLL\n",
 643                          bus->chipinfo.id);
 644                 break;
 645         }
 646
 647         tmp |= bcma_cc_read32(cc, BCMA_CC_PMU_CTL);
 648         bcma_cc_write32(cc, BCMA_CC_PMU_CTL, tmp);
 649 }
 650 EXPORT_SYMBOL_GPL(bcma_pmu_spuravoid_pllupdate);