drivers/scsi/bfa/bfa_ioc_ct.c

   1 /*
   2  * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
   3  * All rights reserved
   4  * www.brocade.com
   5  *
   6  * Linux driver for Brocade Fibre Channel Host Bus Adapter.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License (GPL) Version 2 as
  10  * published by the Free Software Foundation
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  */
  17
  18 #include "bfad_drv.h"
  19 #include "bfa_ioc.h"
  20 #include "bfi_ctreg.h"
  21 #include "bfa_defs.h"
  22
  23 BFA_TRC_FILE(CNA, IOC_CT);
  24
  25 #define bfa_ioc_ct_sync_pos(__ioc)      \
  26                 ((uint32_t) (1 << bfa_ioc_pcifn(__ioc)))
  27 #define BFA_IOC_SYNC_REQD_SH    16
  28 #define bfa_ioc_ct_get_sync_ackd(__val) (__val & 0x0000ffff)
  29 #define bfa_ioc_ct_clear_sync_ackd(__val)       (__val & 0xffff0000)
  30 #define bfa_ioc_ct_get_sync_reqd(__val) (__val >> BFA_IOC_SYNC_REQD_SH)
  31 #define bfa_ioc_ct_sync_reqd_pos(__ioc) \
  32                         (bfa_ioc_ct_sync_pos(__ioc) << BFA_IOC_SYNC_REQD_SH)
  33
  34 /*
  35  * forward declarations
  36  */
  37 static bfa_boolean_t bfa_ioc_ct_firmware_lock(struct bfa_ioc_s *ioc);
  38 static void bfa_ioc_ct_firmware_unlock(struct bfa_ioc_s *ioc);
  39 static void bfa_ioc_ct_reg_init(struct bfa_ioc_s *ioc);
  40 static void bfa_ioc_ct_map_port(struct bfa_ioc_s *ioc);
  41 static void bfa_ioc_ct_isr_mode_set(struct bfa_ioc_s *ioc, bfa_boolean_t msix);
  42 static void bfa_ioc_ct_notify_fail(struct bfa_ioc_s *ioc);
  43 static void bfa_ioc_ct_ownership_reset(struct bfa_ioc_s *ioc);
  44 static void bfa_ioc_ct_sync_join(struct bfa_ioc_s *ioc);
  45 static void bfa_ioc_ct_sync_leave(struct bfa_ioc_s *ioc);
  46 static void bfa_ioc_ct_sync_ack(struct bfa_ioc_s *ioc);
  47 static bfa_boolean_t bfa_ioc_ct_sync_complete(struct bfa_ioc_s *ioc);
  48
  49 static struct bfa_ioc_hwif_s hwif_ct;
  50
  51 /*
  52  * Called from bfa_ioc_attach() to map asic specific calls.
  53  */
  54 void
  55 bfa_ioc_set_ct_hwif(struct bfa_ioc_s *ioc)
  56 {
  57         hwif_ct.ioc_pll_init = bfa_ioc_ct_pll_init;
  58         hwif_ct.ioc_firmware_lock = bfa_ioc_ct_firmware_lock;
  59         hwif_ct.ioc_firmware_unlock = bfa_ioc_ct_firmware_unlock;
  60         hwif_ct.ioc_reg_init = bfa_ioc_ct_reg_init;
  61         hwif_ct.ioc_map_port = bfa_ioc_ct_map_port;
  62         hwif_ct.ioc_isr_mode_set = bfa_ioc_ct_isr_mode_set;
  63         hwif_ct.ioc_notify_fail = bfa_ioc_ct_notify_fail;
  64         hwif_ct.ioc_ownership_reset = bfa_ioc_ct_ownership_reset;
  65         hwif_ct.ioc_sync_join = bfa_ioc_ct_sync_join;
  66         hwif_ct.ioc_sync_leave = bfa_ioc_ct_sync_leave;
  67         hwif_ct.ioc_sync_ack = bfa_ioc_ct_sync_ack;
  68         hwif_ct.ioc_sync_complete = bfa_ioc_ct_sync_complete;
  69
  70         ioc->ioc_hwif = &hwif_ct;
  71 }
  72
  73 /*
  74  * Return true if firmware of current driver matches the running firmware.
  75  */
  76 static bfa_boolean_t
  77 bfa_ioc_ct_firmware_lock(struct bfa_ioc_s *ioc)
  78 {
  79         enum bfi_ioc_state ioc_fwstate;
  80         u32 usecnt;
  81         struct bfi_ioc_image_hdr_s fwhdr;
  82
  83         /*
  84          * Firmware match check is relevant only for CNA.
  85          */
  86         if (!ioc->cna)
  87                 return BFA_TRUE;
  88
  89         /*
  90          * If bios boot (flash based) -- do not increment usage count
  91          */
  92         if (bfa_cb_image_get_size(BFA_IOC_FWIMG_TYPE(ioc)) <
  93                                                 BFA_IOC_FWIMG_MINSZ)
  94                 return BFA_TRUE;
  95
  96         bfa_ioc_sem_get(ioc->ioc_regs.ioc_usage_sem_reg);
  97         usecnt = readl(ioc->ioc_regs.ioc_usage_reg);
  98
  99         /*
 100          * If usage count is 0, always return TRUE.
 101          */
 102         if (usecnt == 0) {
 103                 writel(1, ioc->ioc_regs.ioc_usage_reg);
 104                 writel(1, ioc->ioc_regs.ioc_usage_sem_reg);
 105                 writel(0, ioc->ioc_regs.ioc_fail_sync);
 106                 bfa_trc(ioc, usecnt);
 107                 return BFA_TRUE;
 108         }
 109
 110         ioc_fwstate = readl(ioc->ioc_regs.ioc_fwstate);
 111         bfa_trc(ioc, ioc_fwstate);
 112
 113         /*
 114          * Use count cannot be non-zero and chip in uninitialized state.
 115          */
 116         WARN_ON(ioc_fwstate == BFI_IOC_UNINIT);
 117
 118         /*
 119          * Check if another driver with a different firmware is active
 120          */
 121         bfa_ioc_fwver_get(ioc, &fwhdr);
 122         if (!bfa_ioc_fwver_cmp(ioc, &fwhdr)) {
 123                 writel(1, ioc->ioc_regs.ioc_usage_sem_reg);
 124                 bfa_trc(ioc, usecnt);
 125                 return BFA_FALSE;
 126         }
 127
 128         /*
 129          * Same firmware version. Increment the reference count.
 130          */
 131         usecnt++;
 132         writel(usecnt, ioc->ioc_regs.ioc_usage_reg);
 133         writel(1, ioc->ioc_regs.ioc_usage_sem_reg);
 134         bfa_trc(ioc, usecnt);
 135         return BFA_TRUE;
 136 }
 137
 138 static void
 139 bfa_ioc_ct_firmware_unlock(struct bfa_ioc_s *ioc)
 140 {
 141         u32 usecnt;
 142
 143         /*
 144          * Firmware lock is relevant only for CNA.
 145          */
 146         if (!ioc->cna)
 147                 return;
 148
 149         /*
 150          * If bios boot (flash based) -- do not decrement usage count
 151          */
 152         if (bfa_cb_image_get_size(BFA_IOC_FWIMG_TYPE(ioc)) <
 153                                                 BFA_IOC_FWIMG_MINSZ)
 154                 return;
 155
 156         /*
 157          * decrement usage count
 158          */
 159         bfa_ioc_sem_get(ioc->ioc_regs.ioc_usage_sem_reg);
 160         usecnt = readl(ioc->ioc_regs.ioc_usage_reg);
 161         WARN_ON(usecnt <= 0);
 162
 163         usecnt--;
 164         writel(usecnt, ioc->ioc_regs.ioc_usage_reg);
 165         bfa_trc(ioc, usecnt);
 166
 167         writel(1, ioc->ioc_regs.ioc_usage_sem_reg);
 168 }
 169
 170 /*
 171  * Notify other functions on HB failure.
 172  */
 173 static void
 174 bfa_ioc_ct_notify_fail(struct bfa_ioc_s *ioc)
 175 {
 176         if (ioc->cna) {
 177                 writel(__FW_INIT_HALT_P, ioc->ioc_regs.ll_halt);
 178                 writel(__FW_INIT_HALT_P, ioc->ioc_regs.alt_ll_halt);
 179                 /* Wait for halt to take effect */
 180                 readl(ioc->ioc_regs.ll_halt);
 181                 readl(ioc->ioc_regs.alt_ll_halt);
 182         } else {
 183                 writel(__PSS_ERR_STATUS_SET, ioc->ioc_regs.err_set);
 184                 readl(ioc->ioc_regs.err_set);
 185         }
 186 }
 187
 188 /*
 189  * Host to LPU mailbox message addresses
 190  */
 191 static struct { u32 hfn_mbox, lpu_mbox, hfn_pgn; } iocreg_fnreg[] = {
 192         { HOSTFN0_LPU_MBOX0_0, LPU_HOSTFN0_MBOX0_0, HOST_PAGE_NUM_FN0 },
 193         { HOSTFN1_LPU_MBOX0_8, LPU_HOSTFN1_MBOX0_8, HOST_PAGE_NUM_FN1 },
 194         { HOSTFN2_LPU_MBOX0_0, LPU_HOSTFN2_MBOX0_0, HOST_PAGE_NUM_FN2 },
 195         { HOSTFN3_LPU_MBOX0_8, LPU_HOSTFN3_MBOX0_8, HOST_PAGE_NUM_FN3 }
 196 };
 197
 198 /*
 199  * Host <-> LPU mailbox command/status registers - port 0
 200  */
 201 static struct { u32 hfn, lpu; } iocreg_mbcmd_p0[] = {
 202         { HOSTFN0_LPU0_MBOX0_CMD_STAT, LPU0_HOSTFN0_MBOX0_CMD_STAT },
 203         { HOSTFN1_LPU0_MBOX0_CMD_STAT, LPU0_HOSTFN1_MBOX0_CMD_STAT },
 204         { HOSTFN2_LPU0_MBOX0_CMD_STAT, LPU0_HOSTFN2_MBOX0_CMD_STAT },
 205         { HOSTFN3_LPU0_MBOX0_CMD_STAT, LPU0_HOSTFN3_MBOX0_CMD_STAT }
 206 };
 207
 208 /*
 209  * Host <-> LPU mailbox command/status registers - port 1
 210  */
 211 static struct { u32 hfn, lpu; } iocreg_mbcmd_p1[] = {
 212         { HOSTFN0_LPU1_MBOX0_CMD_STAT, LPU1_HOSTFN0_MBOX0_CMD_STAT },
 213         { HOSTFN1_LPU1_MBOX0_CMD_STAT, LPU1_HOSTFN1_MBOX0_CMD_STAT },
 214         { HOSTFN2_LPU1_MBOX0_CMD_STAT, LPU1_HOSTFN2_MBOX0_CMD_STAT },
 215         { HOSTFN3_LPU1_MBOX0_CMD_STAT, LPU1_HOSTFN3_MBOX0_CMD_STAT }
 216 };
 217
 218 static void
 219 bfa_ioc_ct_reg_init(struct bfa_ioc_s *ioc)
 220 {
 221         void __iomem *rb;
 222         int             pcifn = bfa_ioc_pcifn(ioc);
 223
 224         rb = bfa_ioc_bar0(ioc);
 225
 226         ioc->ioc_regs.hfn_mbox = rb + iocreg_fnreg[pcifn].hfn_mbox;
 227         ioc->ioc_regs.lpu_mbox = rb + iocreg_fnreg[pcifn].lpu_mbox;
 228         ioc->ioc_regs.host_page_num_fn = rb + iocreg_fnreg[pcifn].hfn_pgn;
 229
 230         if (ioc->port_id == 0) {
 231                 ioc->ioc_regs.heartbeat = rb + BFA_IOC0_HBEAT_REG;
 232                 ioc->ioc_regs.ioc_fwstate = rb + BFA_IOC0_STATE_REG;
 233                 ioc->ioc_regs.alt_ioc_fwstate = rb + BFA_IOC1_STATE_REG;
 234                 ioc->ioc_regs.hfn_mbox_cmd = rb + iocreg_mbcmd_p0[pcifn].hfn;
 235                 ioc->ioc_regs.lpu_mbox_cmd = rb + iocreg_mbcmd_p0[pcifn].lpu;
 236                 ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P0;
 237                 ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P1;
 238         } else {
 239                 ioc->ioc_regs.heartbeat = (rb + BFA_IOC1_HBEAT_REG);
 240                 ioc->ioc_regs.ioc_fwstate = (rb + BFA_IOC1_STATE_REG);
 241                 ioc->ioc_regs.alt_ioc_fwstate = rb + BFA_IOC0_STATE_REG;
 242                 ioc->ioc_regs.hfn_mbox_cmd = rb + iocreg_mbcmd_p1[pcifn].hfn;
 243                 ioc->ioc_regs.lpu_mbox_cmd = rb + iocreg_mbcmd_p1[pcifn].lpu;
 244                 ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P1;
 245                 ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P0;
 246         }
 247
 248         /*
 249          * PSS control registers
 250          */
 251         ioc->ioc_regs.pss_ctl_reg = (rb + PSS_CTL_REG);
 252         ioc->ioc_regs.pss_err_status_reg = (rb + PSS_ERR_STATUS_REG);
 253         ioc->ioc_regs.app_pll_fast_ctl_reg = (rb + APP_PLL_425_CTL_REG);
 254         ioc->ioc_regs.app_pll_slow_ctl_reg = (rb + APP_PLL_312_CTL_REG);
 255
 256         /*
 257          * IOC semaphore registers and serialization
 258          */
 259         ioc->ioc_regs.ioc_sem_reg = (rb + HOST_SEM0_REG);
 260         ioc->ioc_regs.ioc_usage_sem_reg = (rb + HOST_SEM1_REG);
 261         ioc->ioc_regs.ioc_init_sem_reg = (rb + HOST_SEM2_REG);
 262         ioc->ioc_regs.ioc_usage_reg = (rb + BFA_FW_USE_COUNT);
 263         ioc->ioc_regs.ioc_fail_sync = (rb + BFA_IOC_FAIL_SYNC);
 264
 265         /*
 266          * sram memory access
 267          */
 268         ioc->ioc_regs.smem_page_start = (rb + PSS_SMEM_PAGE_START);
 269         ioc->ioc_regs.smem_pg0 = BFI_IOC_SMEM_PG0_CT;
 270
 271         /*
 272          * err set reg : for notification of hb failure in fcmode
 273          */
 274         ioc->ioc_regs.err_set = (rb + ERR_SET_REG);
 275 }
 276
 277 /*
 278  * Initialize IOC to port mapping.
 279  */
 280
 281 #define FNC_PERS_FN_SHIFT(__fn) ((__fn) * 8)
 282 static void
 283 bfa_ioc_ct_map_port(struct bfa_ioc_s *ioc)
 284 {
 285         void __iomem *rb = ioc->pcidev.pci_bar_kva;
 286         u32     r32;
 287
 288         /*
 289          * For catapult, base port id on personality register and IOC type
 290          */
 291         r32 = readl(rb + FNC_PERS_REG);
 292         r32 >>= FNC_PERS_FN_SHIFT(bfa_ioc_pcifn(ioc));
 293         ioc->port_id = (r32 & __F0_PORT_MAP_MK) >> __F0_PORT_MAP_SH;
 294
 295         bfa_trc(ioc, bfa_ioc_pcifn(ioc));
 296         bfa_trc(ioc, ioc->port_id);
 297 }
 298
 299 /*
 300  * Set interrupt mode for a function: INTX or MSIX
 301  */
 302 static void
 303 bfa_ioc_ct_isr_mode_set(struct bfa_ioc_s *ioc, bfa_boolean_t msix)
 304 {
 305         void __iomem *rb = ioc->pcidev.pci_bar_kva;
 306         u32     r32, mode;
 307
 308         r32 = readl(rb + FNC_PERS_REG);
 309         bfa_trc(ioc, r32);
 310
 311         mode = (r32 >> FNC_PERS_FN_SHIFT(bfa_ioc_pcifn(ioc))) &
 312                 __F0_INTX_STATUS;
 313
 314         /*
 315          * If already in desired mode, do not change anything
 316          */
 317         if (!msix && mode)
 318                 return;
 319
 320         if (msix)
 321                 mode = __F0_INTX_STATUS_MSIX;
 322         else
 323                 mode = __F0_INTX_STATUS_INTA;
 324
 325         r32 &= ~(__F0_INTX_STATUS << FNC_PERS_FN_SHIFT(bfa_ioc_pcifn(ioc)));
 326         r32 |= (mode << FNC_PERS_FN_SHIFT(bfa_ioc_pcifn(ioc)));
 327         bfa_trc(ioc, r32);
 328
 329         writel(r32, rb + FNC_PERS_REG);
 330 }
 331
 332 /*
 333  * Cleanup hw semaphore and usecnt registers
 334  */
 335 static void
 336 bfa_ioc_ct_ownership_reset(struct bfa_ioc_s *ioc)
 337 {
 338
 339         if (ioc->cna) {
 340                 bfa_ioc_sem_get(ioc->ioc_regs.ioc_usage_sem_reg);
 341                 writel(0, ioc->ioc_regs.ioc_usage_reg);
 342                 writel(1, ioc->ioc_regs.ioc_usage_sem_reg);
 343         }
 344
 345         /*
 346          * Read the hw sem reg to make sure that it is locked
 347          * before we clear it. If it is not locked, writing 1
 348          * will lock it instead of clearing it.
 349          */
 350         readl(ioc->ioc_regs.ioc_sem_reg);
 351         writel(1, ioc->ioc_regs.ioc_sem_reg);
 352 }
 353
 354 /*
 355  * Synchronized IOC failure processing routines
 356  */
 357 static void
 358 bfa_ioc_ct_sync_join(struct bfa_ioc_s *ioc)
 359 {
 360         uint32_t r32 = readl(ioc->ioc_regs.ioc_fail_sync);
 361         uint32_t sync_pos = bfa_ioc_ct_sync_reqd_pos(ioc);
 362
 363         writel((r32 | sync_pos), ioc->ioc_regs.ioc_fail_sync);
 364 }
 365
 366 static void
 367 bfa_ioc_ct_sync_leave(struct bfa_ioc_s *ioc)
 368 {
 369         uint32_t r32 = readl(ioc->ioc_regs.ioc_fail_sync);
 370         uint32_t sync_msk = bfa_ioc_ct_sync_reqd_pos(ioc) |
 371                                         bfa_ioc_ct_sync_pos(ioc);
 372
 373         writel((r32 & ~sync_msk), ioc->ioc_regs.ioc_fail_sync);
 374 }
 375
 376 static void
 377 bfa_ioc_ct_sync_ack(struct bfa_ioc_s *ioc)
 378 {
 379         uint32_t r32 = readl(ioc->ioc_regs.ioc_fail_sync);
 380
 381         writel((r32 | bfa_ioc_ct_sync_pos(ioc)),
 382                 ioc->ioc_regs.ioc_fail_sync);
 383 }
 384
 385 static bfa_boolean_t
 386 bfa_ioc_ct_sync_complete(struct bfa_ioc_s *ioc)
 387 {
 388         uint32_t r32 = readl(ioc->ioc_regs.ioc_fail_sync);
 389         uint32_t sync_reqd = bfa_ioc_ct_get_sync_reqd(r32);
 390         uint32_t sync_ackd = bfa_ioc_ct_get_sync_ackd(r32);
 391         uint32_t tmp_ackd;
 392
 393         if (sync_ackd == 0)
 394                 return BFA_TRUE;
 395
 396         /*
 397          * The check below is to see whether any other PCI fn
 398          * has reinitialized the ASIC (reset sync_ackd bits)
 399          * and failed again while this IOC was waiting for hw
 400          * semaphore (in bfa_iocpf_sm_semwait()).
 401          */
 402         tmp_ackd = sync_ackd;
 403         if ((sync_reqd &  bfa_ioc_ct_sync_pos(ioc)) &&
 404                 !(sync_ackd & bfa_ioc_ct_sync_pos(ioc)))
 405                 sync_ackd |= bfa_ioc_ct_sync_pos(ioc);
 406
 407         if (sync_reqd == sync_ackd) {
 408                 writel(bfa_ioc_ct_clear_sync_ackd(r32),
 409                         ioc->ioc_regs.ioc_fail_sync);
 410                 writel(BFI_IOC_FAIL, ioc->ioc_regs.ioc_fwstate);
 411                 writel(BFI_IOC_FAIL, ioc->ioc_regs.alt_ioc_fwstate);
 412                 return BFA_TRUE;
 413         }
 414
 415         /*
 416          * If another PCI fn reinitialized and failed again while
 417          * this IOC was waiting for hw sem, the sync_ackd bit for
 418          * this IOC need to be set again to allow reinitialization.
 419          */
 420         if (tmp_ackd != sync_ackd)
 421                 writel((r32 | sync_ackd), ioc->ioc_regs.ioc_fail_sync);
 422
 423         return BFA_FALSE;
 424 }
 425
 426 /*
 427  * Check the firmware state to know if pll_init has been completed already
 428  */
 429 bfa_boolean_t
 430 bfa_ioc_ct_pll_init_complete(void __iomem *rb)
 431 {
 432         if ((readl(rb + BFA_IOC0_STATE_REG) == BFI_IOC_OP) ||
 433           (readl(rb + BFA_IOC1_STATE_REG) == BFI_IOC_OP))
 434                 return BFA_TRUE;
 435
 436         return BFA_FALSE;
 437 }
 438
 439 bfa_status_t
 440 bfa_ioc_ct_pll_init(void __iomem *rb, bfa_boolean_t fcmode)
 441 {
 442         u32     pll_sclk, pll_fclk, r32;
 443
 444         pll_sclk = __APP_PLL_312_LRESETN | __APP_PLL_312_ENARST |
 445                 __APP_PLL_312_RSEL200500 | __APP_PLL_312_P0_1(3U) |
 446                 __APP_PLL_312_JITLMT0_1(3U) |
 447                 __APP_PLL_312_CNTLMT0_1(1U);
 448         pll_fclk = __APP_PLL_425_LRESETN | __APP_PLL_425_ENARST |
 449                 __APP_PLL_425_RSEL200500 | __APP_PLL_425_P0_1(3U) |
 450                 __APP_PLL_425_JITLMT0_1(3U) |
 451                 __APP_PLL_425_CNTLMT0_1(1U);
 452         if (fcmode) {
 453                 writel(0, (rb + OP_MODE));
 454                 writel(__APP_EMS_CMLCKSEL | __APP_EMS_REFCKBUFEN2 |
 455                          __APP_EMS_CHANNEL_SEL, (rb + ETH_MAC_SER_REG));
 456         } else {
 457                 writel(__GLOBAL_FCOE_MODE, (rb + OP_MODE));
 458                 writel(__APP_EMS_REFCKBUFEN1, (rb + ETH_MAC_SER_REG));
 459         }
 460         writel(BFI_IOC_UNINIT, (rb + BFA_IOC0_STATE_REG));
 461         writel(BFI_IOC_UNINIT, (rb + BFA_IOC1_STATE_REG));
 462         writel(0xffffffffU, (rb + HOSTFN0_INT_MSK));
 463         writel(0xffffffffU, (rb + HOSTFN1_INT_MSK));
 464         writel(0xffffffffU, (rb + HOSTFN0_INT_STATUS));
 465         writel(0xffffffffU, (rb + HOSTFN1_INT_STATUS));
 466         writel(0xffffffffU, (rb + HOSTFN0_INT_MSK));
 467         writel(0xffffffffU, (rb + HOSTFN1_INT_MSK));
 468         writel(pll_sclk | __APP_PLL_312_LOGIC_SOFT_RESET,
 469                         rb + APP_PLL_312_CTL_REG);
 470         writel(pll_fclk | __APP_PLL_425_LOGIC_SOFT_RESET,
 471                         rb + APP_PLL_425_CTL_REG);
 472         writel(pll_sclk | __APP_PLL_312_LOGIC_SOFT_RESET | __APP_PLL_312_ENABLE,
 473                         rb + APP_PLL_312_CTL_REG);
 474         writel(pll_fclk | __APP_PLL_425_LOGIC_SOFT_RESET | __APP_PLL_425_ENABLE,
 475                         rb + APP_PLL_425_CTL_REG);
 476         readl(rb + HOSTFN0_INT_MSK);
 477         udelay(2000);
 478         writel(0xffffffffU, (rb + HOSTFN0_INT_STATUS));
 479         writel(0xffffffffU, (rb + HOSTFN1_INT_STATUS));
 480         writel(pll_sclk | __APP_PLL_312_ENABLE, rb + APP_PLL_312_CTL_REG);
 481         writel(pll_fclk | __APP_PLL_425_ENABLE, rb + APP_PLL_425_CTL_REG);
 482         if (!fcmode) {
 483                 writel(__PMM_1T_RESET_P, (rb + PMM_1T_RESET_REG_P0));
 484                 writel(__PMM_1T_RESET_P, (rb + PMM_1T_RESET_REG_P1));
 485         }
 486         r32 = readl((rb + PSS_CTL_REG));
 487         r32 &= ~__PSS_LMEM_RESET;
 488         writel(r32, (rb + PSS_CTL_REG));
 489         udelay(1000);
 490         if (!fcmode) {
 491                 writel(0, (rb + PMM_1T_RESET_REG_P0));
 492                 writel(0, (rb + PMM_1T_RESET_REG_P1));
 493         }
 494
 495         writel(__EDRAM_BISTR_START, (rb + MBIST_CTL_REG));
 496         udelay(1000);
 497         r32 = readl((rb + MBIST_STAT_REG));
 498         writel(0, (rb + MBIST_CTL_REG));
 499         return BFA_STATUS_OK;
 500 }