board/atum8548/atum8548.c

   1 /*
   2  * Copyright 2007
   3  * Robert Lazarski, Instituto Atlantico, robertlazarski@gmail.com
   4  *
   5  * Copyright 2007 Freescale Semiconductor, Inc.
   6  *
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #include <common.h>
  27 #include <command.h>
  28 #include <pci.h>
  29 #include <asm/processor.h>
  30 #include <asm/immap_85xx.h>
  31 #include <asm/immap_fsl_pci.h>
  32 #include <asm/io.h>
  33 #include <spd_sdram.h>
  34 #include <miiphy.h>
  35 #include <libfdt.h>
  36 #include <fdt_support.h>
  37
  38 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
  39 extern void ddr_enable_ecc(unsigned int dram_size);
  40 #endif
  41
  42 long int fixed_sdram(void);
  43
  44 int board_early_init_f (void)
  45 {
  46         return 0;
  47 }
  48
  49 int checkboard (void)
  50 {
  51         volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
  52         volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
  53         volatile ccsr_local_ecm_t *ecm = (void *)(CFG_MPC85xx_ECM_ADDR);
  54
  55         if ((uint)&gur->porpllsr != 0xe00e0000) {
  56                 printf("immap size error %lx\n",(ulong)&gur->porpllsr);
  57         }
  58         printf ("Board: ATUM8548\n");
  59
  60         lbc->ltesr = 0xffffffff;        /* Clear LBC error interrupts */
  61         lbc->lteir = 0xffffffff;        /* Enable LBC error interrupts */
  62         ecm->eedr = 0xffffffff;         /* Clear ecm errors */
  63         ecm->eeer = 0xffffffff;         /* Enable ecm errors */
  64
  65         return 0;
  66 }
  67
  68 #if !defined(CONFIG_SPD_EEPROM)
  69 /*************************************************************************
  70  *  fixed sdram init -- doesn't use serial presence detect.
  71  ************************************************************************/
  72 long int fixed_sdram (void)
  73 {
  74         volatile ccsr_ddr_t *ddr= (void *)(CFG_MPC85xx_DDR_ADDR);
  75
  76         ddr->cs0_bnds = CFG_DDR_CS0_BNDS;
  77         ddr->cs0_config = CFG_DDR_CS0_CONFIG;
  78         ddr->timing_cfg_0 = CFG_DDR_TIMING_0;
  79         ddr->timing_cfg_1 = CFG_DDR_TIMING_1;
  80         ddr->timing_cfg_2 = CFG_DDR_TIMING_2;
  81         ddr->sdram_mode = CFG_DDR_MODE;
  82         ddr->sdram_interval = CFG_DDR_INTERVAL;
  83     #if defined (CONFIG_DDR_ECC)
  84         ddr->err_disable = 0x0000000D;
  85         ddr->err_sbe = 0x00ff0000;
  86     #endif
  87         asm("sync;isync;msync");
  88         udelay(500);
  89     #if defined (CONFIG_DDR_ECC)
  90         /* Enable ECC checking */
  91         ddr->sdram_cfg = (CFG_DDR_CONTROL | 0x20000000);
  92     #else
  93         ddr->sdram_cfg = CFG_DDR_CONTROL;
  94     #endif
  95         asm("sync; isync; msync");
  96         udelay(500);
  97         return CFG_SDRAM_SIZE * 1024 * 1024;
  98 }
  99 #endif  /* !defined(CONFIG_SPD_EEPROM) */
 100
 101 phys_size_t
 102 initdram(int board_type)
 103 {
 104         long dram_size = 0;
 105
 106         puts("Initializing\n");
 107
 108 #if defined(CONFIG_SPD_EEPROM)
 109         puts("spd_sdram\n");
 110         dram_size = spd_sdram ();
 111 #else
 112         puts("fixed_sdram\n");
 113         dram_size = fixed_sdram ();
 114 #endif
 115
 116 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
 117         /*
 118          * Initialize and enable DDR ECC.
 119          */
 120         ddr_enable_ecc(dram_size);
 121 #endif
 122         puts("    DDR: ");
 123         return dram_size;
 124 }
 125
 126 #if defined(CFG_DRAM_TEST)
 127 int
 128 testdram(void)
 129 {
 130         uint *pstart = (uint *) CFG_MEMTEST_START;
 131         uint *pend = (uint *) CFG_MEMTEST_END;
 132         uint *p;
 133
 134         printf("Testing DRAM from 0x%08x to 0x%08x\n",
 135                CFG_MEMTEST_START,
 136                CFG_MEMTEST_END);
 137
 138         printf("DRAM test phase 1:\n");
 139         for (p = pstart; p < pend; p++) {
 140                 printf ("DRAM test attempting to write 0xaaaaaaaa at: %08x\n", (uint) p);
 141                 *p = 0xaaaaaaaa;
 142         }
 143
 144         for (p = pstart; p < pend; p++) {
 145                 if (*p != 0xaaaaaaaa) {
 146                         printf ("DRAM test fails at: %08x\n", (uint) p);
 147                         return 1;
 148                 }
 149         }
 150
 151         printf("DRAM test phase 2:\n");
 152         for (p = pstart; p < pend; p++)
 153                 *p = 0x55555555;
 154
 155         for (p = pstart; p < pend; p++) {
 156                 if (*p != 0x55555555) {
 157                         printf ("DRAM test fails at: %08x\n", (uint) p);
 158                         return 1;
 159                 }
 160         }
 161
 162         printf("DRAM test passed.\n");
 163         return 0;
 164 }
 165 #endif
 166
 167 #ifdef CONFIG_PCI1
 168 static struct pci_controller pci1_hose;
 169 #endif
 170
 171 #ifdef CONFIG_PCI2
 172 static struct pci_controller pci2_hose;
 173 #endif
 174
 175 #ifdef CONFIG_PCIE1
 176 static struct pci_controller pcie1_hose;
 177 #endif
 178
 179 int first_free_busno=0;
 180
 181 void
 182 pci_init_board(void)
 183 {
 184         volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
 185
 186         uint devdisr = gur->devdisr;
 187         uint io_sel = (gur->pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
 188         uint host_agent = (gur->porbmsr & MPC85xx_PORBMSR_HA) >> 16;
 189
 190         debug ("   pci_init_board: devdisr=%x, io_sel=%x, host_agent=%x\n",
 191                 devdisr, io_sel, host_agent);
 192
 193         /* explicitly set 'Clock out select register' to echo SYSCLK input to our CPLD */
 194         gur->clkocr  |= MPC85xx_ATUM_CLKOCR;
 195
 196         if (io_sel & 1) {
 197                 if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII1_DIS))
 198                         printf ("    eTSEC1 is in sgmii mode.\n");
 199                 if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII2_DIS))
 200                         printf ("    eTSEC2 is in sgmii mode.\n");
 201                 if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII3_DIS))
 202                         printf ("    eTSEC3 is in sgmii mode.\n");
 203                 if (!(gur->pordevsr & MPC85xx_PORDEVSR_SGMII4_DIS))
 204                         printf ("    eTSEC4 is in sgmii mode.\n");
 205         }
 206
 207 #ifdef CONFIG_PCIE1
 208  {
 209         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCIE1_ADDR;
 210         extern void fsl_pci_init(struct pci_controller *hose);
 211         struct pci_controller *hose = &pcie1_hose;
 212         int pcie_ep = (host_agent == 5);
 213         int pcie_configured  = io_sel & 6;
 214
 215         if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
 216                 printf ("\n    PCIE1 connected to slot as %s (base address %x)",
 217                         pcie_ep ? "End Point" : "Root Complex",
 218                         (uint)pci);
 219                 if (pci->pme_msg_det) {
 220                         pci->pme_msg_det = 0xffffffff;
 221                         debug (" with errors.  Clearing.  Now 0x%08x",pci->pme_msg_det);
 222                 }
 223                 printf ("\n");
 224
 225                 /* inbound */
 226                 pci_set_region(hose->regions + 0,
 227                                CFG_PCI_MEMORY_BUS,
 228                                CFG_PCI_MEMORY_PHYS,
 229                                CFG_PCI_MEMORY_SIZE,
 230                                PCI_REGION_MEM | PCI_REGION_MEMORY);
 231
 232                 /* outbound memory */
 233                 pci_set_region(hose->regions + 1,
 234                                CFG_PCIE1_MEM_BASE,
 235                                CFG_PCIE1_MEM_PHYS,
 236                                CFG_PCIE1_MEM_SIZE,
 237                                PCI_REGION_MEM);
 238
 239                 /* outbound io */
 240                 pci_set_region(hose->regions + 2,
 241                                CFG_PCIE1_IO_BASE,
 242                                CFG_PCIE1_IO_PHYS,
 243                                CFG_PCIE1_IO_SIZE,
 244                                PCI_REGION_IO);
 245
 246                 hose->region_count = 3;
 247 #ifdef CFG_PCIE1_MEM_BASE2
 248                 /* outbound memory */
 249                 pci_set_region(hose->regions + 3,
 250                                CFG_PCIE1_MEM_BASE2,
 251                                CFG_PCIE1_MEM_PHYS2,
 252                                CFG_PCIE1_MEM_SIZE2,
 253                                PCI_REGION_MEM);
 254                 hose->region_count++;
 255 #endif
 256                 hose->first_busno=first_free_busno;
 257
 258                 pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
 259
 260                 fsl_pci_init(hose);
 261
 262                 first_free_busno=hose->last_busno+1;
 263                 printf("    PCIE1 on bus %02x - %02x\n",
 264                        hose->first_busno,hose->last_busno);
 265
 266         } else {
 267                 printf ("    PCIE1: disabled\n");
 268         }
 269
 270  }
 271 #else
 272         gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
 273 #endif
 274
 275 #ifdef CONFIG_PCI1
 276 {
 277         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI1_ADDR;
 278         extern void fsl_pci_init(struct pci_controller *hose);
 279         struct pci_controller *hose = &pci1_hose;
 280
 281         uint pci_agent = (host_agent == 6);
 282         uint pci_speed = 33333000; /*get_clock_freq (); PCI PSPEED in [4:5] */
 283         uint pci_32 = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32;      /* PORDEVSR[15] */
 284         uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;       /* PORDEVSR[14] */
 285         uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;   /* PORPLLSR[16] */
 286
 287         if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
 288                 printf ("\n    PCI1: %d bit, %s MHz, %s, %s, %s (base address %x)\n",
 289                         (pci_32) ? 32 : 64,
 290                         (pci_speed == 33333000) ? "33" :
 291                         (pci_speed == 66666000) ? "66" : "unknown",
 292                         pci_clk_sel ? "sync" : "async",
 293                         pci_agent ? "agent" : "host",
 294                         pci_arb ? "arbiter" : "external-arbiter",
 295                         (uint)pci
 296                         );
 297
 298                 /* inbound */
 299                 pci_set_region(hose->regions + 0,
 300                                CFG_PCI_MEMORY_BUS,
 301                                CFG_PCI_MEMORY_PHYS,
 302                                CFG_PCI_MEMORY_SIZE,
 303                                PCI_REGION_MEM | PCI_REGION_MEMORY);
 304
 305                 /* outbound memory */
 306                 pci_set_region(hose->regions + 1,
 307                                CFG_PCI1_MEM_BASE,
 308                                CFG_PCI1_MEM_PHYS,
 309                                CFG_PCI1_MEM_SIZE,
 310                                PCI_REGION_MEM);
 311
 312                 /* outbound io */
 313                 pci_set_region(hose->regions + 2,
 314                                CFG_PCI1_IO_BASE,
 315                                CFG_PCI1_IO_PHYS,
 316                                CFG_PCI1_IO_SIZE,
 317                                PCI_REGION_IO);
 318                 hose->region_count = 3;
 319                 hose->first_busno=first_free_busno;
 320                 pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
 321
 322                 fsl_pci_init(hose);
 323                 first_free_busno=hose->last_busno+1;
 324                 printf ("PCI1 on bus %02x - %02x\n",
 325                         hose->first_busno,hose->last_busno);
 326         } else {
 327                 printf ("    PCI1: disabled\n");
 328         }
 329 }
 330 #else
 331         gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */
 332 #endif
 333
 334 #ifdef CONFIG_PCI2
 335 {
 336         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI2_ADDR;
 337         extern void fsl_pci_init(struct pci_controller *hose);
 338         struct pci_controller *hose = &pci2_hose;
 339
 340         if (!(devdisr & MPC85xx_DEVDISR_PCI2)) {
 341                 pci_set_region(hose->regions + 0,
 342                                CFG_PCI_MEMORY_BUS,
 343                                CFG_PCI_MEMORY_PHYS,
 344                                CFG_PCI_MEMORY_SIZE,
 345                                PCI_REGION_MEM | PCI_REGION_MEMORY);
 346
 347                 pci_set_region(hose->regions + 1,
 348                                CFG_PCI2_MEM_BASE,
 349                                CFG_PCI2_MEM_PHYS,
 350                                CFG_PCI2_MEM_SIZE,
 351                                PCI_REGION_MEM);
 352
 353                 pci_set_region(hose->regions + 2,
 354                                CFG_PCI2_IO_BASE,
 355                                CFG_PCI2_IO_PHYS,
 356                                CFG_PCI2_IO_SIZE,
 357                                PCI_REGION_IO);
 358                 hose->region_count = 3;
 359                 hose->first_busno=first_free_busno;
 360                 pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
 361
 362                 fsl_pci_init(hose);
 363                 first_free_busno=hose->last_busno+1;
 364                 printf ("PCI2 on bus %02x - %02x\n",
 365                         hose->first_busno,hose->last_busno);
 366         } else {
 367                 printf ("    PCI2: disabled\n");
 368         }
 369 }
 370 #else
 371         gur->devdisr |= MPC85xx_DEVDISR_PCI2;
 372 #endif
 373 }
 374
 375
 376 int last_stage_init(void)
 377 {
 378         int ic = icache_status ();
 379         printf ("icache_status: %d\n", ic);
 380         return 0;
 381 }
 382
 383 #if defined(CONFIG_OF_BOARD_SETUP)
 384
 385 void
 386 ft_board_setup(void *blob, bd_t *bd)
 387 {
 388         int node, tmp[2];
 389         const char *path;
 390
 391         ft_cpu_setup(blob, bd);
 392
 393         node = fdt_path_offset(blob, "/aliases");
 394         tmp[0] = 0;
 395         if (node >= 0) {
 396 #ifdef CONFIG_PCI1
 397                 path = fdt_getprop(blob, node, "pci0", NULL);
 398                 if (path) {
 399                         tmp[1] = pci1_hose.last_busno - pci1_hose.first_busno;
 400                         do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
 401                 }
 402 #endif
 403 #ifdef CONFIG_PCI2
 404                 path = fdt_getprop(blob, node, "pci1", NULL);
 405                 if (path) {
 406                         tmp[1] = pci2_hose.last_busno - pci2_hose.first_busno;
 407                         do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
 408                 }
 409 #endif
 410 #ifdef CONFIG_PCIE1
 411                 path = fdt_getprop(blob, node, "pci2", NULL);
 412                 if (path) {
 413                         tmp[1] = pcie1_hose.last_busno - pcie1_hose.first_busno;
 414                         do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
 415                 }
 416 #endif
 417         }
 418 }
 419 #endif