board/freescale/b4860qds/b4860qds.c

   1 /*
   2  * Copyright 2011-2012 Freescale Semiconductor, Inc.
   3  *
   4  * See file CREDITS for list of people who contributed to this
   5  * project.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22
  23 #include <common.h>
  24 #include <command.h>
  25 #include <i2c.h>
  26 #include <netdev.h>
  27 #include <linux/compiler.h>
  28 #include <asm/mmu.h>
  29 #include <asm/processor.h>
  30 #include <asm/cache.h>
  31 #include <asm/immap_85xx.h>
  32 #include <asm/fsl_law.h>
  33 #include <asm/fsl_serdes.h>
  34 #include <asm/fsl_portals.h>
  35 #include <asm/fsl_liodn.h>
  36 #include <fm_eth.h>
  37
  38 #include "../common/qixis.h"
  39 #include "../common/vsc3316_3308.h"
  40 #include "b4860qds.h"
  41 #include "b4860qds_qixis.h"
  42 #include "b4860qds_crossbar_con.h"
  43
  44 #define CLK_MUX_SEL_MASK        0x4
  45 #define ETH_PHY_CLK_OUT         0x4
  46
  47 DECLARE_GLOBAL_DATA_PTR;
  48
  49 int checkboard(void)
  50 {
  51         char buf[64];
  52         u8 sw;
  53         struct cpu_type *cpu = gd->arch.cpu;
  54         ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
  55         unsigned int i;
  56         static const char *const freq[] = {"100", "125", "156.25", "161.13",
  57                                                 "122.88", "122.88", "122.88"};
  58         int clock;
  59
  60         printf("Board: %sQDS, ", cpu->name);
  61         printf("Sys ID: 0x%02x, Sys Ver: 0x%02x, ",
  62                 QIXIS_READ(id), QIXIS_READ(arch));
  63
  64         sw = QIXIS_READ(brdcfg[0]);
  65         sw = (sw & QIXIS_LBMAP_MASK) >> QIXIS_LBMAP_SHIFT;
  66
  67         if (sw < 0x8)
  68                 printf("vBank: %d\n", sw);
  69         else if (sw >= 0x8 && sw <= 0xE)
  70                 puts("NAND\n");
  71         else
  72                 printf("invalid setting of SW%u\n", QIXIS_LBMAP_SWITCH);
  73
  74         printf("FPGA: v%d (%s), build %d",
  75                 (int)QIXIS_READ(scver), qixis_read_tag(buf),
  76                 (int)qixis_read_minor());
  77         /* the timestamp string contains "\n" at the end */
  78         printf(" on %s", qixis_read_time(buf));
  79
  80         /* Display the RCW, so that no one gets confused as to what RCW
  81          * we're actually using for this boot.
  82          */
  83         puts("Reset Configuration Word (RCW):");
  84         for (i = 0; i < ARRAY_SIZE(gur->rcwsr); i++) {
  85                 u32 rcw = in_be32(&gur->rcwsr[i]);
  86
  87                 if ((i % 4) == 0)
  88                         printf("\n       %08x:", i * 4);
  89                 printf(" %08x", rcw);
  90         }
  91         puts("\n");
  92
  93         /*
  94          * Display the actual SERDES reference clocks as configured by the
  95          * dip switches on the board.  Note that the SWx registers could
  96          * technically be set to force the reference clocks to match the
  97          * values that the SERDES expects (or vice versa).  For now, however,
  98          * we just display both values and hope the user notices when they
  99          * don't match.
 100          */
 101         puts("SERDES Reference Clocks: ");
 102         sw = QIXIS_READ(brdcfg[2]);
 103         clock = (sw >> 5) & 7;
 104         printf("Bank1=%sMHz ", freq[clock]);
 105         sw = QIXIS_READ(brdcfg[4]);
 106         clock = (sw >> 6) & 3;
 107         printf("Bank2=%sMHz\n", freq[clock]);
 108
 109         return 0;
 110 }
 111
 112 int select_i2c_ch_pca(u8 ch)
 113 {
 114         int ret;
 115
 116         /* Selecting proper channel via PCA*/
 117         ret = i2c_write(I2C_MUX_PCA_ADDR, 0x0, 1, &ch, 1);
 118         if (ret) {
 119                 printf("PCA: failed to select proper channel.\n");
 120                 return ret;
 121         }
 122
 123         return 0;
 124 }
 125
 126 int configure_vsc3316_3308(void)
 127 {
 128         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 129         unsigned int num_vsc16_con, num_vsc08_con;
 130         u32 serdes1_prtcl, serdes2_prtcl;
 131         int ret;
 132
 133         serdes1_prtcl = in_be32(&gur->rcwsr[4]) &
 134                         FSL_CORENET2_RCWSR4_SRDS1_PRTCL;
 135         if (!serdes1_prtcl) {
 136                 printf("SERDES1 is not enabled\n");
 137                 return 0;
 138         }
 139         serdes1_prtcl >>= FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT;
 140         debug("Using SERDES1 Protocol: 0x%x:\n", serdes1_prtcl);
 141
 142         serdes2_prtcl = in_be32(&gur->rcwsr[4]) &
 143                         FSL_CORENET2_RCWSR4_SRDS2_PRTCL;
 144         if (!serdes2_prtcl) {
 145                 printf("SERDES2 is not enabled\n");
 146                 return 0;
 147         }
 148         serdes2_prtcl >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT;
 149         debug("Using SERDES2 Protocol: 0x%x:\n", serdes2_prtcl);
 150
 151         switch (serdes1_prtcl) {
 152         case 0x2a:
 153         case 0x2C:
 154         case 0x2D:
 155         case 0x2E:
 156                         /*
 157                          * Configuration:
 158                          * SERDES: 1
 159                          * Lanes: A,B: SGMII
 160                          * Lanes: C,D,E,F,G,H: CPRI
 161                          */
 162                 debug("Configuring crossbar to use onboard SGMII PHYs:"
 163                                 "srds_prctl:%x\n", serdes1_prtcl);
 164                 num_vsc16_con = NUM_CON_VSC3316;
 165                 /* Configure VSC3316 crossbar switch */
 166                 ret = select_i2c_ch_pca(I2C_CH_VSC3316);
 167                 if (!ret) {
 168                         ret = vsc3316_config(VSC3316_TX_ADDRESS,
 169                                         vsc16_tx_sgmii_lane_ab, num_vsc16_con);
 170                         if (ret)
 171                                 return ret;
 172                         ret = vsc3316_config(VSC3316_RX_ADDRESS,
 173                                         vsc16_rx_sgmii_lane_ab, num_vsc16_con);
 174                         if (ret)
 175                                 return ret;
 176                 } else {
 177                         return ret;
 178                 }
 179                 break;
 180
 181 #ifdef CONFIG_PPC_B4420
 182         case 0x18:
 183                         /*
 184                          * Configuration:
 185                          * SERDES: 1
 186                          * Lanes: A,B,C,D: SGMII
 187                          * Lanes: E,F,G,H: CPRI
 188                          */
 189                 debug("Configuring crossbar to use onboard SGMII PHYs:"
 190                                 "srds_prctl:%x\n", serdes1_prtcl);
 191                 num_vsc16_con = NUM_CON_VSC3316;
 192                 /* Configure VSC3316 crossbar switch */
 193                 ret = select_i2c_ch_pca(I2C_CH_VSC3316);
 194                 if (!ret) {
 195                         ret = vsc3316_config(VSC3316_TX_ADDRESS,
 196                                         vsc16_tx_sgmii_lane_cd, num_vsc16_con);
 197                         if (ret)
 198                                 return ret;
 199                         ret = vsc3316_config(VSC3316_RX_ADDRESS,
 200                                         vsc16_rx_sgmii_lane_cd, num_vsc16_con);
 201                         if (ret)
 202                                 return ret;
 203                 } else {
 204                         return ret;
 205                 }
 206                 break;
 207 #endif
 208
 209         case 0x3E:
 210         case 0x0D:
 211         case 0x0E:
 212         case 0x12:
 213                 num_vsc16_con = NUM_CON_VSC3316;
 214                 /* Configure VSC3316 crossbar switch */
 215                 ret = select_i2c_ch_pca(I2C_CH_VSC3316);
 216                 if (!ret) {
 217                         ret = vsc3316_config(VSC3316_TX_ADDRESS,
 218                                         vsc16_tx_sfp, num_vsc16_con);
 219                         if (ret)
 220                                 return ret;
 221                         ret = vsc3316_config(VSC3316_RX_ADDRESS,
 222                                         vsc16_rx_sfp, num_vsc16_con);
 223                         if (ret)
 224                                 return ret;
 225                 } else {
 226                         return ret;
 227                 }
 228                 break;
 229         default:
 230                 printf("WARNING:VSC crossbars programming not supported for:%x"
 231                                         " SerDes1 Protocol.\n", serdes1_prtcl);
 232                 return -1;
 233         }
 234
 235         switch (serdes2_prtcl) {
 236         case 0x9E:
 237         case 0x9A:
 238         case 0x98:
 239         case 0xb2:
 240         case 0x49:
 241         case 0x4E:
 242         case 0x8D:
 243         case 0x7A:
 244                 num_vsc08_con = NUM_CON_VSC3308;
 245                 /* Configure VSC3308 crossbar switch */
 246                 ret = select_i2c_ch_pca(I2C_CH_VSC3308);
 247                 if (!ret) {
 248                         ret = vsc3308_config(VSC3308_TX_ADDRESS,
 249                                         vsc08_tx_amc, num_vsc08_con);
 250                         if (ret)
 251                                 return ret;
 252                         ret = vsc3308_config(VSC3308_RX_ADDRESS,
 253                                         vsc08_rx_amc, num_vsc08_con);
 254                         if (ret)
 255                                 return ret;
 256                 } else {
 257                         return ret;
 258                 }
 259                 break;
 260         default:
 261                 printf("WARNING:VSC crossbars programming not supported for: %x"
 262                                         " SerDes2 Protocol.\n", serdes2_prtcl);
 263                 return -1;
 264         }
 265
 266         return 0;
 267 }
 268
 269 int board_early_init_r(void)
 270 {
 271         const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
 272         const u8 flash_esel = find_tlb_idx((void *)flashbase, 1);
 273
 274         /*
 275          * Remap Boot flash + PROMJET region to caching-inhibited
 276          * so that flash can be erased properly.
 277          */
 278
 279         /* Flush d-cache and invalidate i-cache of any FLASH data */
 280         flush_dcache();
 281         invalidate_icache();
 282
 283         /* invalidate existing TLB entry for flash + promjet */
 284         disable_tlb(flash_esel);
 285
 286         set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
 287                         MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 288                         0, flash_esel, BOOKE_PAGESZ_256M, 1);
 289
 290         set_liodns();
 291 #ifdef CONFIG_SYS_DPAA_QBMAN
 292         setup_portals();
 293 #endif
 294
 295         /* Configure VSC3316 and VSC3308 crossbar switches */
 296         if (configure_vsc3316_3308())
 297                 printf("VSC:failed to configure VSC3316/3308.\n");
 298         else
 299                 printf("VSC:VSC3316/3308 successfully configured.\n");
 300
 301         select_i2c_ch_pca(I2C_CH_DEFAULT);
 302
 303         return 0;
 304 }
 305
 306 unsigned long get_board_sys_clk(void)
 307 {
 308         u8 sysclk_conf = QIXIS_READ(brdcfg[1]);
 309
 310         switch ((sysclk_conf & 0x0C) >> 2) {
 311         case QIXIS_CLK_100:
 312                 return 100000000;
 313         case QIXIS_CLK_125:
 314                 return 125000000;
 315         case QIXIS_CLK_133:
 316                 return 133333333;
 317         }
 318         return 66666666;
 319 }
 320
 321 unsigned long get_board_ddr_clk(void)
 322 {
 323         u8 ddrclk_conf = QIXIS_READ(brdcfg[1]);
 324
 325         switch (ddrclk_conf & 0x03) {
 326         case QIXIS_CLK_100:
 327                 return 100000000;
 328         case QIXIS_CLK_125:
 329                 return 125000000;
 330         case QIXIS_CLK_133:
 331                 return 133333333;
 332         }
 333         return 66666666;
 334 }
 335
 336 static int serdes_refclock(u8 sw, u8 sdclk)
 337 {
 338         unsigned int clock;
 339         int ret = -1;
 340         u8 brdcfg4;
 341
 342         if (sdclk == 1) {
 343                 brdcfg4 = QIXIS_READ(brdcfg[4]);
 344                 if ((brdcfg4 & CLK_MUX_SEL_MASK) == ETH_PHY_CLK_OUT)
 345                         return SRDS_PLLCR0_RFCK_SEL_125;
 346                 else
 347                         clock = (sw >> 5) & 7;
 348         } else
 349                 clock = (sw >> 6) & 3;
 350
 351         switch (clock) {
 352         case 0:
 353                 ret = SRDS_PLLCR0_RFCK_SEL_100;
 354                 break;
 355         case 1:
 356                 ret = SRDS_PLLCR0_RFCK_SEL_125;
 357                 break;
 358         case 2:
 359                 ret = SRDS_PLLCR0_RFCK_SEL_156_25;
 360                 break;
 361         case 3:
 362                 ret = SRDS_PLLCR0_RFCK_SEL_161_13;
 363                 break;
 364         case 4:
 365         case 5:
 366         case 6:
 367                 ret = SRDS_PLLCR0_RFCK_SEL_122_88;
 368                 break;
 369         default:
 370                 ret = -1;
 371                 break;
 372         }
 373
 374         return ret;
 375 }
 376
 377 static const char *serdes_clock_to_string(u32 clock)
 378 {
 379         switch (clock) {
 380         case SRDS_PLLCR0_RFCK_SEL_100:
 381                 return "100";
 382         case SRDS_PLLCR0_RFCK_SEL_125:
 383                 return "125";
 384         case SRDS_PLLCR0_RFCK_SEL_156_25:
 385                 return "156.25";
 386         case SRDS_PLLCR0_RFCK_SEL_161_13:
 387                 return "161.13";
 388         default:
 389                 return "122.88";
 390         }
 391 }
 392
 393 #define NUM_SRDS_BANKS  2
 394
 395 int misc_init_r(void)
 396 {
 397         u8 sw;
 398         serdes_corenet_t *srds_regs =
 399                 (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR;
 400         u32 actual[NUM_SRDS_BANKS];
 401         unsigned int i;
 402         int clock;
 403
 404         sw = QIXIS_READ(brdcfg[2]);
 405         clock = serdes_refclock(sw, 1);
 406         if (clock >= 0)
 407                 actual[0] = clock;
 408         else
 409                 printf("Warning: SDREFCLK1 switch setting is unsupported\n");
 410
 411         sw = QIXIS_READ(brdcfg[4]);
 412         clock = serdes_refclock(sw, 2);
 413         if (clock >= 0)
 414                 actual[1] = clock;
 415         else
 416                 printf("Warning: SDREFCLK2 switch setting unsupported\n");
 417
 418         for (i = 0; i < NUM_SRDS_BANKS; i++) {
 419                 u32 pllcr0 = srds_regs->bank[i].pllcr0;
 420                 u32 expected = pllcr0 & SRDS_PLLCR0_RFCK_SEL_MASK;
 421                 if (expected != actual[i]) {
 422                         printf("Warning: SERDES bank %u expects reference clock"
 423                                " %sMHz, but actual is %sMHz\n", i + 1,
 424                                serdes_clock_to_string(expected),
 425                                serdes_clock_to_string(actual[i]));
 426                 }
 427         }
 428
 429         return 0;
 430 }
 431
 432 void ft_board_setup(void *blob, bd_t *bd)
 433 {
 434         phys_addr_t base;
 435         phys_size_t size;
 436
 437         ft_cpu_setup(blob, bd);
 438
 439         base = getenv_bootm_low();
 440         size = getenv_bootm_size();
 441
 442         fdt_fixup_memory(blob, (u64)base, (u64)size);
 443
 444 #ifdef CONFIG_PCI
 445         pci_of_setup(blob, bd);
 446 #endif
 447
 448         fdt_fixup_liodn(blob);
 449
 450 #ifdef CONFIG_HAS_FSL_DR_USB
 451         fdt_fixup_dr_usb(blob, bd);
 452 #endif
 453
 454 #ifdef CONFIG_SYS_DPAA_FMAN
 455         fdt_fixup_fman_ethernet(blob);
 456         fdt_fixup_board_enet(blob);
 457 #endif
 458 }
 459
 460 /*
 461  * Dump board switch settings.
 462  * The bits that cannot be read/sampled via some FPGA or some
 463  * registers, they will be displayed as
 464  * underscore in binary format. mask[] has those bits.
 465  * Some bits are calculated differently than the actual switches
 466  * if booting with overriding by FPGA.
 467  */
 468 void qixis_dump_switch(void)
 469 {
 470         int i;
 471         u8 sw[5];
 472
 473         /*
 474          * Any bit with 1 means that bit cannot be reverse engineered.
 475          * It will be displayed as _ in binary format.
 476          */
 477         static const u8 mask[] = {0x07, 0, 0, 0xff, 0};
 478         char buf[10];
 479         u8 brdcfg[16], dutcfg[16];
 480
 481         for (i = 0; i < 16; i++) {
 482                 brdcfg[i] = qixis_read(offsetof(struct qixis, brdcfg[0]) + i);
 483                 dutcfg[i] = qixis_read(offsetof(struct qixis, dutcfg[0]) + i);
 484         }
 485
 486         sw[0] = ((brdcfg[0] & 0x0f) << 4)       | \
 487                 (brdcfg[9] & 0x08);
 488         sw[1] = ((dutcfg[1] & 0x01) << 7)       | \
 489                 ((dutcfg[2] & 0x07) << 4)       | \
 490                 ((dutcfg[6] & 0x10) >> 1)       | \
 491                 ((dutcfg[6] & 0x80) >> 5)       | \
 492                 ((dutcfg[1] & 0x40) >> 5)       | \
 493                 (dutcfg[6] & 0x01);
 494         sw[2] = dutcfg[0];
 495         sw[3] = 0;
 496         sw[4] = ((brdcfg[1] & 0x30) << 2)       | \
 497                 ((brdcfg[1] & 0xc0) >> 2)       | \
 498                 (brdcfg[1] & 0x0f);
 499
 500         puts("DIP switch settings:\n");
 501         for (i = 0; i < 5; i++) {
 502                 printf("SW%d         = 0b%s (0x%02x)\n",
 503                         i + 1, byte_to_binary_mask(sw[i], mask[i], buf), sw[i]);
 504         }
 505 }