board/tqm85xx/tqm85xx.c

   1 /*
   2  * (C) Copyright 2005
   3  * Stefan Roese, DENX Software Engineering, sr@denx.de.
   4  *
   5  * Copyright 2004 Freescale Semiconductor.
   6  * (C) Copyright 2002,2003, Motorola Inc.
   7  * Xianghua Xiao, (X.Xiao@motorola.com)
   8  *
   9  * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
  10  *
  11  * See file CREDITS for list of people who contributed to this
  12  * project.
  13  *
  14  * This program is free software; you can redistribute it and/or
  15  * modify it under the terms of the GNU General Public License as
  16  * published by the Free Software Foundation; either version 2 of
  17  * the License, or (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.         See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  27  * MA 02111-1307 USA
  28  */
  29
  30
  31 #include <common.h>
  32 #include <pci.h>
  33 #include <asm/processor.h>
  34 #include <asm/immap_85xx.h>
  35 #include <ioports.h>
  36 #include <spd.h>
  37 #include <flash.h>
  38
  39 DECLARE_GLOBAL_DATA_PTR;
  40
  41 extern flash_info_t flash_info[];       /* FLASH chips info */
  42
  43 void local_bus_init (void);
  44 long int fixed_sdram (void);
  45 ulong flash_get_size (ulong base, int banknum);
  46
  47 #ifdef CONFIG_CPM2
  48 /*
  49  * I/O Port configuration table
  50  *
  51  * if conf is 1, then that port pin will be configured at boot time
  52  * according to the five values podr/pdir/ppar/psor/pdat for that entry
  53  */
  54
  55 const iop_conf_t iop_conf_tab[4][32] = {
  56
  57     /* Port A configuration */
  58     {   /*            conf ppar psor pdir podr pdat */
  59         /* PA31 */ {   1,   1,   1,   0,   0,   0   }, /* FCC1 MII COL */
  60         /* PA30 */ {   1,   1,   1,   0,   0,   0   }, /* FCC1 MII CRS */
  61         /* PA29 */ {   1,   1,   1,   1,   0,   0   }, /* FCC1 MII TX_ER */
  62         /* PA28 */ {   1,   1,   1,   1,   0,   0   }, /* FCC1 MII TX_EN */
  63         /* PA27 */ {   1,   1,   1,   0,   0,   0   }, /* FCC1 MII RX_DV */
  64         /* PA26 */ {   1,   1,   1,   0,   0,   0   }, /* FCC1 MII RX_ER */
  65         /* PA25 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 ATMTXD[0] */
  66         /* PA24 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 ATMTXD[1] */
  67         /* PA23 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 ATMTXD[2] */
  68         /* PA22 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 ATMTXD[3] */
  69         /* PA21 */ {   1,   1,   0,   1,   0,   0   }, /* FCC1 MII TxD[3] */
  70         /* PA20 */ {   1,   1,   0,   1,   0,   0   }, /* FCC1 MII TxD[2] */
  71         /* PA19 */ {   1,   1,   0,   1,   0,   0   }, /* FCC1 MII TxD[1] */
  72         /* PA18 */ {   1,   1,   0,   1,   0,   0   }, /* FCC1 MII TxD[0] */
  73         /* PA17 */ {   1,   1,   0,   0,   0,   0   }, /* FCC1 MII RxD[0] */
  74         /* PA16 */ {   1,   1,   0,   0,   0,   0   }, /* FCC1 MII RxD[1] */
  75         /* PA15 */ {   1,   1,   0,   0,   0,   0   }, /* FCC1 MII RxD[2] */
  76         /* PA14 */ {   1,   1,   0,   0,   0,   0   }, /* FCC1 MII RxD[3] */
  77         /* PA13 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 ATMRXD[3] */
  78         /* PA12 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 ATMRXD[2] */
  79         /* PA11 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 ATMRXD[1] */
  80         /* PA10 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 ATMRXD[0] */
  81         /* PA9  */ {   0,   1,   1,   1,   0,   0   }, /* FCC1 L1TXD */
  82         /* PA8  */ {   0,   1,   1,   0,   0,   0   }, /* FCC1 L1RXD */
  83         /* PA7  */ {   0,   0,   0,   1,   0,   0   }, /* PA7 */
  84         /* PA6  */ {   0,   1,   1,   1,   0,   0   }, /* TDM A1 L1RSYNC */
  85         /* PA5  */ {   0,   0,   0,   1,   0,   0   }, /* PA5 */
  86         /* PA4  */ {   0,   0,   0,   1,   0,   0   }, /* PA4 */
  87         /* PA3  */ {   0,   0,   0,   1,   0,   0   }, /* PA3 */
  88         /* PA2  */ {   0,   0,   0,   1,   0,   0   }, /* PA2 */
  89         /* PA1  */ {   0,   0,   0,   0,   0,   0   }, /* FREERUN */
  90         /* PA0  */ {   0,   0,   0,   1,   0,   0   }  /* PA0 */
  91     },
  92
  93     /* Port B configuration */
  94     {   /*            conf ppar psor pdir podr pdat */
  95         /* PB31 */ {   1,   1,   0,   1,   0,   0   }, /* FCC2 MII TX_ER */
  96         /* PB30 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII RX_DV */
  97         /* PB29 */ {   1,   1,   1,   1,   0,   0   }, /* FCC2 MII TX_EN */
  98         /* PB28 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII RX_ER */
  99         /* PB27 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII COL */
 100         /* PB26 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII CRS */
 101         /* PB25 */ {   1,   1,   0,   1,   0,   0   }, /* FCC2 MII TxD[3] */
 102         /* PB24 */ {   1,   1,   0,   1,   0,   0   }, /* FCC2 MII TxD[2] */
 103         /* PB23 */ {   1,   1,   0,   1,   0,   0   }, /* FCC2 MII TxD[1] */
 104         /* PB22 */ {   1,   1,   0,   1,   0,   0   }, /* FCC2 MII TxD[0] */
 105         /* PB21 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII RxD[0] */
 106         /* PB20 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII RxD[1] */
 107         /* PB19 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII RxD[2] */
 108         /* PB18 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII RxD[3] */
 109         /* PB17 */ {   1,   1,   0,   0,   0,   0   }, /* FCC3:RX_DIV */
 110         /* PB16 */ {   1,   1,   0,   0,   0,   0   }, /* FCC3:RX_ERR */
 111         /* PB15 */ {   1,   1,   0,   1,   0,   0   }, /* FCC3:TX_ERR */
 112         /* PB14 */ {   1,   1,   0,   1,   0,   0   }, /* FCC3:TX_EN */
 113         /* PB13 */ {   1,   1,   0,   0,   0,   0   }, /* FCC3:COL */
 114         /* PB12 */ {   1,   1,   0,   0,   0,   0   }, /* FCC3:CRS */
 115         /* PB11 */ {   1,   1,   0,   0,   0,   0   }, /* FCC3:RXD */
 116         /* PB10 */ {   1,   1,   0,   0,   0,   0   }, /* FCC3:RXD */
 117         /* PB9  */ {   1,   1,   0,   0,   0,   0   }, /* FCC3:RXD */
 118         /* PB8  */ {   1,   1,   0,   0,   0,   0   }, /* FCC3:RXD */
 119         /* PB7  */ {   1,   1,   0,   1,   0,   0   }, /* FCC3:TXD */
 120         /* PB6  */ {   1,   1,   0,   1,   0,   0   }, /* FCC3:TXD */
 121         /* PB5  */ {   1,   1,   0,   1,   0,   0   }, /* FCC3:TXD */
 122         /* PB4  */ {   1,   1,   0,   1,   0,   0   }, /* FCC3:TXD */
 123         /* PB3  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
 124         /* PB2  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
 125         /* PB1  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
 126         /* PB0  */ {   0,   0,   0,   0,   0,   0   }  /* pin doesn't exist */
 127     },
 128
 129     /* Port C */
 130     {   /*            conf ppar psor pdir podr pdat */
 131         /* PC31 */ {   0,   0,   0,   1,   0,   0   }, /* PC31 */
 132         /* PC30 */ {   0,   0,   0,   1,   0,   0   }, /* PC30 */
 133         /* PC29 */ {   0,   1,   1,   0,   0,   0   }, /* SCC1 EN *CLSN */
 134         /* PC28 */ {   0,   0,   0,   1,   0,   0   }, /* PC28 */
 135         /* PC27 */ {   0,   0,   0,   1,   0,   0   }, /* UART Clock in */
 136         /* PC26 */ {   0,   0,   0,   1,   0,   0   }, /* PC26 */
 137         /* PC25 */ {   0,   0,   0,   1,   0,   0   }, /* PC25 */
 138         /* PC24 */ {   0,   0,   0,   1,   0,   0   }, /* PC24 */
 139         /* PC23 */ {   0,   1,   0,   1,   0,   0   }, /* ATMTFCLK */
 140         /* PC22 */ {   0,   1,   0,   0,   0,   0   }, /* ATMRFCLK */
 141         /* PC21 */ {   1,   1,   0,   0,   0,   0   }, /* SCC1 EN RXCLK */
 142         /* PC20 */ {   1,   1,   0,   0,   0,   0   }, /* SCC1 EN TXCLK */
 143         /* PC19 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII RX_CLK CLK13 */
 144         /* PC18 */ {   1,   1,   0,   0,   0,   0   }, /* FCC Tx Clock (CLK14) */
 145         /* PC17 */ {   1,   1,   0,   0,   0,   0   }, /* PC17 */
 146         /* PC16 */ {   1,   1,   0,   0,   0,   0   }, /* FCC Tx Clock (CLK16) */
 147         /* PC15 */ {   0,   1,   0,   0,   0,   0   }, /* PC15 */
 148         /* PC14 */ {   0,   1,   0,   0,   0,   0   }, /* SCC1 EN *CD */
 149         /* PC13 */ {   0,   1,   0,   0,   0,   0   }, /* PC13 */
 150         /* PC12 */ {   0,   1,   0,   1,   0,   0   }, /* PC12 */
 151         /* PC11 */ {   0,   0,   0,   1,   0,   0   }, /* LXT971 transmit control */
 152         /* PC10 */ {   0,   0,   0,   1,   0,   0   }, /* FETHMDC */
 153         /* PC9  */ {   0,   0,   0,   0,   0,   0   }, /* FETHMDIO */
 154         /* PC8  */ {   0,   0,   0,   1,   0,   0   }, /* PC8 */
 155         /* PC7  */ {   0,   0,   0,   1,   0,   0   }, /* PC7 */
 156         /* PC6  */ {   0,   0,   0,   1,   0,   0   }, /* PC6 */
 157         /* PC5  */ {   0,   0,   0,   1,   0,   0   }, /* PC5 */
 158         /* PC4  */ {   0,   0,   0,   1,   0,   0   }, /* PC4 */
 159         /* PC3  */ {   0,   0,   0,   1,   0,   0   }, /* PC3 */
 160         /* PC2  */ {   0,   0,   0,   1,   0,   1   }, /* ENET FDE */
 161         /* PC1  */ {   0,   0,   0,   1,   0,   0   }, /* ENET DSQE */
 162         /* PC0  */ {   0,   0,   0,   1,   0,   0   }, /* ENET LBK */
 163     },
 164
 165     /* Port D */
 166     {   /*            conf ppar psor pdir podr pdat */
 167         /* PD31 */ {   1,   1,   0,   0,   0,   0   }, /* SCC1 EN RxD */
 168         /* PD30 */ {   1,   1,   1,   1,   0,   0   }, /* SCC1 EN TxD */
 169         /* PD29 */ {   1,   1,   0,   1,   0,   0   }, /* SCC1 EN TENA */
 170         /* PD28 */ {   1,   1,   0,   0,   0,   0   }, /* PD28 */
 171         /* PD27 */ {   1,   1,   0,   1,   0,   0   }, /* PD27 */
 172         /* PD26 */ {   1,   1,   0,   1,   0,   0   }, /* PD26 */
 173         /* PD25 */ {   0,   0,   0,   1,   0,   0   }, /* PD25 */
 174         /* PD24 */ {   0,   0,   0,   1,   0,   0   }, /* PD24 */
 175         /* PD23 */ {   0,   0,   0,   1,   0,   0   }, /* PD23 */
 176         /* PD22 */ {   0,   0,   0,   1,   0,   0   }, /* PD22 */
 177         /* PD21 */ {   0,   0,   0,   1,   0,   0   }, /* PD21 */
 178         /* PD20 */ {   0,   0,   0,   1,   0,   0   }, /* PD20 */
 179         /* PD19 */ {   0,   0,   0,   1,   0,   0   }, /* PD19 */
 180         /* PD18 */ {   0,   0,   0,   1,   0,   0   }, /* PD18 */
 181         /* PD17 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 ATMRXPRTY */
 182         /* PD16 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 ATMTXPRTY */
 183         /* PD15 */ {   0,   1,   1,   0,   1,   0   }, /* I2C SDA */
 184         /* PD14 */ {   0,   0,   0,   1,   0,   0   }, /* LED */
 185         /* PD13 */ {   0,   0,   0,   0,   0,   0   }, /* PD13 */
 186         /* PD12 */ {   0,   0,   0,   0,   0,   0   }, /* PD12 */
 187         /* PD11 */ {   0,   0,   0,   0,   0,   0   }, /* PD11 */
 188         /* PD10 */ {   0,   0,   0,   0,   0,   0   }, /* PD10 */
 189         /* PD9  */ {   0,   1,   0,   1,   0,   0   }, /* SMC1 TXD */
 190         /* PD8  */ {   0,   1,   0,   0,   0,   0   }, /* SMC1 RXD */
 191         /* PD7  */ {   0,   0,   0,   1,   0,   1   }, /* PD7 */
 192         /* PD6  */ {   0,   0,   0,   1,   0,   1   }, /* PD6 */
 193         /* PD5  */ {   0,   0,   0,   1,   0,   1   }, /* PD5 */
 194         /* PD4  */ {   0,   0,   0,   1,   0,   1   }, /* PD4 */
 195         /* PD3  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
 196         /* PD2  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
 197         /* PD1  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
 198         /* PD0  */ {   0,   0,   0,   0,   0,   0   }  /* pin doesn't exist */
 199     }
 200 };
 201 #endif /*  CONFIG_CPM2 */
 202
 203 #define CASL_STRING1    "casl=xx"
 204 #define CASL_STRING2    "casl="
 205
 206 static const int casl_table[] = { 20, 25, 30 };
 207 #define N_CASL (sizeof(casl_table) / sizeof(casl_table[0]))
 208
 209 int cas_latency(void)
 210 {
 211         char *s = getenv("serial#");
 212         int casl;
 213         int val;
 214         int i;
 215
 216         casl = CONFIG_DDR_DEFAULT_CL;
 217
 218         if (s != NULL) {
 219                 if (strncmp(s + strlen(s) - strlen(CASL_STRING1), CASL_STRING2,
 220                             strlen(CASL_STRING2)) == 0) {
 221                         val = simple_strtoul(s + strlen(s) - 2, NULL, 10);
 222
 223                         for (i=0; i<N_CASL; ++i) {
 224                                 if (val == casl_table[i]) {
 225                                         return val;
 226                                 }
 227                         }
 228                 }
 229         }
 230
 231         return casl;
 232 }
 233
 234 int checkboard (void)
 235 {
 236         char *s = getenv("serial#");
 237
 238         printf("Board: %s", CONFIG_BOARDNAME);
 239         if (s != NULL) {
 240                 puts(", serial# ");
 241                 puts(s);
 242         }
 243         putc('\n');
 244
 245 #ifdef CONFIG_PCI
 246         printf ("PCI1:  32 bit, %d MHz (compiled)\n",
 247                 CONFIG_SYS_CLK_FREQ / 1000000);
 248 #else
 249         printf ("PCI1:  disabled\n");
 250 #endif
 251
 252         /*
 253          * Initialize local bus.
 254          */
 255         local_bus_init ();
 256
 257         return 0;
 258 }
 259
 260 int misc_init_r (void)
 261 {
 262         volatile immap_t    *immap = (immap_t *)CFG_IMMR;
 263         volatile ccsr_lbc_t *memctl = &immap->im_lbc;
 264
 265         /*
 266          * Adjust flash start and offset to detected values
 267          */
 268         gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
 269         gd->bd->bi_flashoffset = 0;
 270
 271         /*
 272          * Check if boot FLASH isn't max size
 273          */
 274         if (gd->bd->bi_flashsize < (0 - CFG_FLASH0)) {
 275                 memctl->or0 = gd->bd->bi_flashstart | (CFG_OR0_PRELIM & 0x00007fff);
 276                 memctl->br0 = gd->bd->bi_flashstart | (CFG_BR0_PRELIM & 0x00007fff);
 277
 278                 /*
 279                  * Re-check to get correct base address
 280                  */
 281                 flash_get_size(gd->bd->bi_flashstart, CFG_MAX_FLASH_BANKS - 1);
 282         }
 283
 284         /*
 285          * Check if only one FLASH bank is available
 286          */
 287         if (gd->bd->bi_flashsize != CFG_MAX_FLASH_BANKS * (0 - CFG_FLASH0)) {
 288                 memctl->or1 = 0;
 289                 memctl->br1 = 0;
 290
 291                 /*
 292                  * Re-do flash protection upon new addresses
 293                  */
 294                 flash_protect (FLAG_PROTECT_CLEAR,
 295                                gd->bd->bi_flashstart, 0xffffffff,
 296                                &flash_info[CFG_MAX_FLASH_BANKS - 1]);
 297
 298                 /* Monitor protection ON by default */
 299                 flash_protect (FLAG_PROTECT_SET,
 300                                CFG_MONITOR_BASE, CFG_MONITOR_BASE + monitor_flash_len - 1,
 301                                &flash_info[CFG_MAX_FLASH_BANKS - 1]);
 302
 303                 /* Environment protection ON by default */
 304                 flash_protect (FLAG_PROTECT_SET,
 305                                CFG_ENV_ADDR,
 306                                CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1,
 307                                &flash_info[CFG_MAX_FLASH_BANKS - 1]);
 308
 309                 /* Redundant environment protection ON by default */
 310                 flash_protect (FLAG_PROTECT_SET,
 311                                CFG_ENV_ADDR_REDUND,
 312                                CFG_ENV_ADDR_REDUND + CFG_ENV_SIZE_REDUND - 1,
 313                                &flash_info[CFG_MAX_FLASH_BANKS - 1]);
 314         }
 315
 316         return 0;
 317 }
 318
 319 /*
 320  * Initialize Local Bus
 321  */
 322 void local_bus_init (void)
 323 {
 324         volatile immap_t *immap = (immap_t *) CFG_IMMR;
 325         volatile ccsr_gur_t *gur = &immap->im_gur;
 326         volatile ccsr_lbc_t *lbc = &immap->im_lbc;
 327
 328         uint clkdiv;
 329         uint lbc_hz;
 330         sys_info_t sysinfo;
 331
 332         /*
 333          * Errata LBC11.
 334          * Fix Local Bus clock glitch when DLL is enabled.
 335          *
 336          * If localbus freq is < 66Mhz, DLL bypass mode must be used.
 337          * If localbus freq is > 133Mhz, DLL can be safely enabled.
 338          * Between 66 and 133, the DLL is enabled with an override workaround.
 339          */
 340
 341         get_sys_info (&sysinfo);
 342         clkdiv = lbc->lcrr & 0x0f;
 343         lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
 344
 345         if (lbc_hz < 66) {
 346                 lbc->lcrr = CFG_LBC_LCRR | 0x80000000;  /* DLL Bypass */
 347                 lbc->ltedr = 0xa4c80000;        /* DK: !!! */
 348
 349         } else if (lbc_hz >= 133) {
 350                 lbc->lcrr = CFG_LBC_LCRR & (~0x80000000);       /* DLL Enabled */
 351
 352         } else {
 353                 /*
 354                  * On REV1 boards, need to change CLKDIV before enable DLL.
 355                  * Default CLKDIV is 8, change it to 4 temporarily.
 356                  */
 357                 uint pvr = get_pvr ();
 358                 uint temp_lbcdll = 0;
 359
 360                 if (pvr == PVR_85xx_REV1) {
 361                         /* FIXME: Justify the high bit here. */
 362                         lbc->lcrr = 0x10000004;
 363                 }
 364
 365                 lbc->lcrr = CFG_LBC_LCRR & (~0x80000000);       /* DLL Enabled */
 366                 udelay (200);
 367
 368                 /*
 369                  * Sample LBC DLL ctrl reg, upshift it to set the
 370                  * override bits.
 371                  */
 372                 temp_lbcdll = gur->lbcdllcr;
 373                 gur->lbcdllcr = (((temp_lbcdll & 0xff) << 16) | 0x80000000);
 374                 asm ("sync;isync;msync");
 375         }
 376 }
 377
 378 #if defined(CONFIG_PCI)
 379 /*
 380  * Initialize PCI Devices, report devices found.
 381  */
 382
 383 #ifndef CONFIG_PCI_PNP
 384 static struct pci_config_table pci_mpc85xxads_config_table[] = {
 385         {PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 386          PCI_IDSEL_NUMBER, PCI_ANY_ID,
 387          pci_cfgfunc_config_device, {PCI_ENET0_IOADDR,
 388                                      PCI_ENET0_MEMADDR,
 389                                      PCI_COMMAND_MEMORY |
 390                                      PCI_COMMAND_MASTER}},
 391         {}
 392 };
 393 #endif
 394
 395
 396 static struct pci_controller hose = {
 397 #ifndef CONFIG_PCI_PNP
 398         config_table:pci_mpc85xxads_config_table,
 399 #endif
 400 };
 401
 402 #endif /* CONFIG_PCI */
 403
 404
 405 void pci_init_board (void)
 406 {
 407 #ifdef CONFIG_PCI
 408         extern void pci_mpc85xx_init (struct pci_controller *hose);
 409
 410         pci_mpc85xx_init (&hose);
 411 #endif /* CONFIG_PCI */
 412 }