board/sbc8641d/sbc8641d.c

   1 /*
   2  * Copyright 2007 Wind River Systemes, Inc. <www.windriver.com>
   3  * Copyright 2007 Embedded Specialties, Inc.
   4  * Joe Hamman joe.hamman@embeddedspecialties.com
   5  *
   6  * Copyright 2004 Freescale Semiconductor.
   7  * Jeff Brown
   8  * Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
   9  *
  10  * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
  11  *
  12  * See file CREDITS for list of people who contributed to this
  13  * project.
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License as
  17  * published by the Free Software Foundation; either version 2 of
  18  * the License, or (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, write to the Free Software
  27  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  28  * MA 02111-1307 USA
  29  */
  30
  31 #include <common.h>
  32 #include <command.h>
  33 #include <pci.h>
  34 #include <asm/processor.h>
  35 #include <asm/immap_86xx.h>
  36 #include <asm/immap_fsl_pci.h>
  37 #include <spd_sdram.h>
  38 #include <libfdt.h>
  39 #include <fdt_support.h>
  40
  41 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
  42 extern void ddr_enable_ecc (unsigned int dram_size);
  43 #endif
  44
  45 void sdram_init (void);
  46 long int fixed_sdram (void);
  47
  48 int board_early_init_f (void)
  49 {
  50         return 0;
  51 }
  52
  53 int checkboard (void)
  54 {
  55         puts ("Board: Wind River SBC8641D\n");
  56
  57         return 0;
  58 }
  59
  60 long int initdram (int board_type)
  61 {
  62         long dram_size = 0;
  63
  64 #if defined(CONFIG_SPD_EEPROM)
  65         dram_size = spd_sdram ();
  66 #else
  67         dram_size = fixed_sdram ();
  68 #endif
  69
  70 #if defined(CFG_RAMBOOT)
  71         puts ("    DDR: ");
  72         return dram_size;
  73 #endif
  74
  75 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
  76         /*
  77          * Initialize and enable DDR ECC.
  78          */
  79         ddr_enable_ecc (dram_size);
  80 #endif
  81
  82         puts ("    DDR: ");
  83         return dram_size;
  84 }
  85
  86 #if defined(CFG_DRAM_TEST)
  87 int testdram (void)
  88 {
  89         uint *pstart = (uint *) CFG_MEMTEST_START;
  90         uint *pend = (uint *) CFG_MEMTEST_END;
  91         uint *p;
  92
  93         puts ("SDRAM test phase 1:\n");
  94         for (p = pstart; p < pend; p++)
  95                 *p = 0xaaaaaaaa;
  96
  97         for (p = pstart; p < pend; p++) {
  98                 if (*p != 0xaaaaaaaa) {
  99                         printf ("SDRAM test fails at: %08x\n", (uint) p);
 100                         return 1;
 101                 }
 102         }
 103
 104         puts ("SDRAM test phase 2:\n");
 105         for (p = pstart; p < pend; p++)
 106                 *p = 0x55555555;
 107
 108         for (p = pstart; p < pend; p++) {
 109                 if (*p != 0x55555555) {
 110                         printf ("SDRAM test fails at: %08x\n", (uint) p);
 111                         return 1;
 112                 }
 113         }
 114
 115         puts ("SDRAM test passed.\n");
 116         return 0;
 117 }
 118 #endif
 119
 120 #if !defined(CONFIG_SPD_EEPROM)
 121 /*
 122  * Fixed sdram init -- doesn't use serial presence detect.
 123  */
 124 long int fixed_sdram (void)
 125 {
 126 #if !defined(CFG_RAMBOOT)
 127         volatile immap_t *immap = (immap_t *) CFG_IMMR;
 128         volatile ccsr_ddr_t *ddr = &immap->im_ddr1;
 129
 130         ddr->cs0_bnds = CFG_DDR_CS0_BNDS;
 131         ddr->cs1_bnds = CFG_DDR_CS1_BNDS;
 132         ddr->cs2_bnds = CFG_DDR_CS2_BNDS;
 133         ddr->cs3_bnds = CFG_DDR_CS3_BNDS;
 134         ddr->cs0_config = CFG_DDR_CS0_CONFIG;
 135         ddr->cs1_config = CFG_DDR_CS1_CONFIG;
 136         ddr->cs2_config = CFG_DDR_CS2_CONFIG;
 137         ddr->cs3_config = CFG_DDR_CS3_CONFIG;
 138         ddr->ext_refrec = CFG_DDR_EXT_REFRESH;
 139         ddr->timing_cfg_0 = CFG_DDR_TIMING_0;
 140         ddr->timing_cfg_1 = CFG_DDR_TIMING_1;
 141         ddr->timing_cfg_2 = CFG_DDR_TIMING_2;
 142         ddr->sdram_cfg_1 = CFG_DDR_CFG_1A;
 143         ddr->sdram_cfg_2 = CFG_DDR_CFG_2;
 144         ddr->sdram_mode_1 = CFG_DDR_MODE_1;
 145         ddr->sdram_mode_2 = CFG_DDR_MODE_2;
 146         ddr->sdram_mode_cntl = CFG_DDR_MODE_CTL;
 147         ddr->sdram_interval = CFG_DDR_INTERVAL;
 148         ddr->sdram_data_init = CFG_DDR_DATA_INIT;
 149         ddr->sdram_clk_cntl = CFG_DDR_CLK_CTRL;
 150
 151         asm ("sync;isync");
 152
 153         udelay (500);
 154
 155         ddr->sdram_cfg_1 = CFG_DDR_CFG_1B;
 156         asm ("sync; isync");
 157
 158         udelay (500);
 159         ddr = &immap->im_ddr2;
 160
 161         ddr->cs0_bnds = CFG_DDR2_CS0_BNDS;
 162         ddr->cs1_bnds = CFG_DDR2_CS1_BNDS;
 163         ddr->cs2_bnds = CFG_DDR2_CS2_BNDS;
 164         ddr->cs3_bnds = CFG_DDR2_CS3_BNDS;
 165         ddr->cs0_config = CFG_DDR2_CS0_CONFIG;
 166         ddr->cs1_config = CFG_DDR2_CS1_CONFIG;
 167         ddr->cs2_config = CFG_DDR2_CS2_CONFIG;
 168         ddr->cs3_config = CFG_DDR2_CS3_CONFIG;
 169         ddr->ext_refrec = CFG_DDR2_EXT_REFRESH;
 170         ddr->timing_cfg_0 = CFG_DDR2_TIMING_0;
 171         ddr->timing_cfg_1 = CFG_DDR2_TIMING_1;
 172         ddr->timing_cfg_2 = CFG_DDR2_TIMING_2;
 173         ddr->sdram_cfg_1 = CFG_DDR2_CFG_1A;
 174         ddr->sdram_cfg_2 = CFG_DDR2_CFG_2;
 175         ddr->sdram_mode_1 = CFG_DDR2_MODE_1;
 176         ddr->sdram_mode_2 = CFG_DDR2_MODE_2;
 177         ddr->sdram_mode_cntl = CFG_DDR2_MODE_CTL;
 178         ddr->sdram_interval = CFG_DDR2_INTERVAL;
 179         ddr->sdram_data_init = CFG_DDR2_DATA_INIT;
 180         ddr->sdram_clk_cntl = CFG_DDR2_CLK_CTRL;
 181
 182         asm ("sync;isync");
 183
 184         udelay (500);
 185
 186         ddr->sdram_cfg_1 = CFG_DDR2_CFG_1B;
 187         asm ("sync; isync");
 188
 189         udelay (500);
 190 #endif
 191         return CFG_SDRAM_SIZE * 1024 * 1024;
 192 }
 193 #endif                          /* !defined(CONFIG_SPD_EEPROM) */
 194
 195 #if defined(CONFIG_PCI)
 196 /*
 197  * Initialize PCI Devices, report devices found.
 198  */
 199
 200 #ifndef CONFIG_PCI_PNP
 201 static struct pci_config_table pci_fsl86xxads_config_table[] = {
 202         {PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 203          PCI_IDSEL_NUMBER, PCI_ANY_ID,
 204          pci_cfgfunc_config_device, {PCI_ENET0_IOADDR,
 205                                      PCI_ENET0_MEMADDR,
 206                                      PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER}},
 207         {}
 208 };
 209 #endif
 210
 211 static struct pci_controller pci1_hose = {
 212 #ifndef CONFIG_PCI_PNP
 213         config_table:pci_mpc86xxcts_config_table
 214 #endif
 215 };
 216 #endif /* CONFIG_PCI */
 217
 218 #ifdef CONFIG_PCI2
 219 static struct pci_controller pci2_hose;
 220 #endif  /* CONFIG_PCI2 */
 221
 222 int first_free_busno = 0;
 223
 224 void pci_init_board(void)
 225 {
 226         volatile immap_t *immap = (immap_t *) CFG_CCSRBAR;
 227         volatile ccsr_gur_t *gur = &immap->im_gur;
 228         uint devdisr = gur->devdisr;
 229         uint io_sel = (gur->pordevsr & MPC8641_PORDEVSR_IO_SEL)
 230                 >> MPC8641_PORDEVSR_IO_SEL_SHIFT;
 231
 232 #ifdef CONFIG_PCI1
 233 {
 234         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI1_ADDR;
 235         extern void fsl_pci_init(struct pci_controller *hose);
 236         struct pci_controller *hose = &pci1_hose;
 237 #ifdef DEBUG
 238         uint host1_agent = (gur->porbmsr & MPC8641_PORBMSR_HA)
 239                 >> MPC8641_PORBMSR_HA_SHIFT;
 240         uint pex1_agent = (host1_agent == 0) || (host1_agent == 1);
 241 #endif
 242         if ((io_sel == 2 || io_sel == 3 || io_sel == 5
 243              || io_sel == 6 || io_sel == 7 || io_sel == 0xF)
 244             && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
 245                 debug("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host");
 246                 debug("0x%08x=0x%08x ", &pci->pme_msg_det, pci->pme_msg_det);
 247                 if (pci->pme_msg_det) {
 248                         pci->pme_msg_det = 0xffffffff;
 249                         debug(" with errors.  Clearing.  Now 0x%08x",
 250                               pci->pme_msg_det);
 251                 }
 252                 debug("\n");
 253
 254                 /* inbound */
 255                 pci_set_region(hose->regions + 0,
 256                                CFG_PCI_MEMORY_BUS,
 257                                CFG_PCI_MEMORY_PHYS,
 258                                CFG_PCI_MEMORY_SIZE,
 259                                PCI_REGION_MEM | PCI_REGION_MEMORY);
 260
 261                 /* outbound memory */
 262                 pci_set_region(hose->regions + 1,
 263                                CFG_PCI1_MEM_BASE,
 264                                CFG_PCI1_MEM_PHYS,
 265                                CFG_PCI1_MEM_SIZE,
 266                                PCI_REGION_MEM);
 267
 268                 /* outbound io */
 269                 pci_set_region(hose->regions + 2,
 270                                CFG_PCI1_IO_BASE,
 271                                CFG_PCI1_IO_PHYS,
 272                                CFG_PCI1_IO_SIZE,
 273                                PCI_REGION_IO);
 274
 275                 hose->region_count = 3;
 276
 277                 hose->first_busno=first_free_busno;
 278                 pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
 279
 280                 fsl_pci_init(hose);
 281
 282                 first_free_busno=hose->last_busno+1;
 283                 printf ("    PCI-EXPRESS 1 on bus %02x - %02x\n",
 284                         hose->first_busno,hose->last_busno);
 285
 286         } else {
 287                 puts("PCI-EXPRESS 1: Disabled\n");
 288         }
 289 }
 290 #else
 291         puts("PCI-EXPRESS1: Disabled\n");
 292 #endif /* CONFIG_PCI1 */
 293
 294 #ifdef CONFIG_PCI2
 295 {
 296         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI2_ADDR;
 297         extern void fsl_pci_init(struct pci_controller *hose);
 298         struct pci_controller *hose = &pci2_hose;
 299
 300
 301         /* inbound */
 302         pci_set_region(hose->regions + 0,
 303                        CFG_PCI_MEMORY_BUS,
 304                        CFG_PCI_MEMORY_PHYS,
 305                        CFG_PCI_MEMORY_SIZE,
 306                        PCI_REGION_MEM | PCI_REGION_MEMORY);
 307
 308         /* outbound memory */
 309         pci_set_region(hose->regions + 1,
 310                        CFG_PCI2_MEM_BASE,
 311                        CFG_PCI2_MEM_PHYS,
 312                        CFG_PCI2_MEM_SIZE,
 313                        PCI_REGION_MEM);
 314
 315         /* outbound io */
 316         pci_set_region(hose->regions + 2,
 317                        CFG_PCI2_IO_BASE,
 318                        CFG_PCI2_IO_PHYS,
 319                        CFG_PCI2_IO_SIZE,
 320                        PCI_REGION_IO);
 321
 322         hose->region_count = 3;
 323
 324         hose->first_busno=first_free_busno;
 325         pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
 326
 327         fsl_pci_init(hose);
 328
 329         first_free_busno=hose->last_busno+1;
 330         printf ("    PCI-EXPRESS 2 on bus %02x - %02x\n",
 331                 hose->first_busno,hose->last_busno);
 332 }
 333 #else
 334         puts("PCI-EXPRESS 2: Disabled\n");
 335 #endif /* CONFIG_PCI2 */
 336
 337 }
 338
 339
 340 #if defined(CONFIG_OF_BOARD_SETUP)
 341
 342 void
 343 ft_board_setup (void *blob, bd_t *bd)
 344 {
 345         int node, tmp[2];
 346         const char *path;
 347
 348         ft_cpu_setup(blob, bd);
 349
 350         node = fdt_path_offset(blob, "/aliases");
 351         tmp[0] = 0;
 352         if (node >= 0) {
 353 #ifdef CONFIG_PCI1
 354                 path = fdt_getprop(blob, node, "pci0", NULL);
 355                 if (path) {
 356                         tmp[1] = pci1_hose.last_busno - pci1_hose.first_busno;
 357                         do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
 358                 }
 359 #endif
 360 #ifdef CONFIG_PCI2
 361                 path = fdt_getprop(blob, node, "pci1", NULL);
 362                 if (path) {
 363                         tmp[1] = pci2_hose.last_busno - pci2_hose.first_busno;
 364                         do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
 365                 }
 366 #endif
 367         }
 368 }
 369 #endif
 370
 371 void sbc8641d_reset_board (void)
 372 {
 373         puts ("Resetting board....\n");
 374 }
 375
 376 /*
 377  * get_board_sys_clk
 378  *      Clock is fixed at 1GHz on this board. Used for CONFIG_SYS_CLK_FREQ
 379  */
 380
 381 unsigned long get_board_sys_clk (ulong dummy)
 382 {
 383         int i;
 384         ulong val = 0;
 385
 386         i = 5;
 387         i &= 0x07;
 388
 389         switch (i) {
 390         case 0:
 391                 val = 33000000;
 392                 break;
 393         case 1:
 394                 val = 40000000;
 395                 break;
 396         case 2:
 397                 val = 50000000;
 398                 break;
 399         case 3:
 400                 val = 66000000;
 401                 break;
 402         case 4:
 403                 val = 83000000;
 404                 break;
 405         case 5:
 406                 val = 100000000;
 407                 break;
 408         case 6:
 409                 val = 134000000;
 410                 break;
 411         case 7:
 412                 val = 166000000;
 413                 break;
 414         }
 415
 416         return val;
 417 }