board/stxssa/stxssa.c

   1 /*
   2  * (C) Copyright 2005, Embedded Alley Solutions, Inc.
   3  * Dan Malek, <dan@embeddedalley.com>
   4  * Copied from STx GP3.
   5  * Updates for Silicon Tx GP3 SSA
   6  *
   7  * (C) Copyright 2003,Motorola Inc.
   8  * Xianghua Xiao, (X.Xiao@motorola.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
  32 extern long int spd_sdram (void);
  33
  34 #include <common.h>
  35 #include <pci.h>
  36 #include <asm/processor.h>
  37 #include <asm/immap_85xx.h>
  38 #include <ioports.h>
  39 #include <asm/io.h>
  40 #include <spd.h>
  41 #include <miiphy.h>
  42
  43 long int fixed_sdram (void);
  44
  45 /*
  46  * I/O Port configuration table
  47  *
  48  * if conf is 1, then that port pin will be configured at boot time
  49  * according to the five values podr/pdir/ppar/psor/pdat for that entry
  50  */
  51
  52 const iop_conf_t iop_conf_tab[4][32] = {
  53
  54     /* Port A configuration */
  55     {   /*            conf ppar psor pdir podr pdat */
  56         /* PA31 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 TxENB */
  57         /* PA30 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 TxClav   */
  58         /* PA29 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 TxSOC  */
  59         /* PA28 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 RxENB */
  60         /* PA27 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 RxSOC */
  61         /* PA26 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 RxClav */
  62         /* PA25 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 ATMTXD[0] */
  63         /* PA24 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 ATMTXD[1] */
  64         /* PA23 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 ATMTXD[2] */
  65         /* PA22 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 ATMTXD[3] */
  66         /* PA21 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 ATMTXD[4] */
  67         /* PA20 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 ATMTXD[5] */
  68         /* PA19 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 ATMTXD[6] */
  69         /* PA18 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 ATMTXD[7] */
  70         /* PA17 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 ATMRXD[7] */
  71         /* PA16 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 ATMRXD[6] */
  72         /* PA15 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 ATMRXD[5] */
  73         /* PA14 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 ATMRXD[4] */
  74         /* PA13 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 ATMRXD[3] */
  75         /* PA12 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 ATMRXD[2] */
  76         /* PA11 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 ATMRXD[1] */
  77         /* PA10 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 ATMRXD[0] */
  78         /* PA9  */ {   0,   1,   1,   1,   0,   0   }, /* FCC1 L1TXD */
  79         /* PA8  */ {   0,   1,   1,   0,   0,   0   }, /* FCC1 L1RXD */
  80         /* PA7  */ {   0,   0,   0,   1,   0,   0   }, /* PA7 */
  81         /* PA6  */ {   0,   1,   1,   1,   0,   0   }, /* TDM A1 L1RSYNC */
  82         /* PA5  */ {   0,   0,   0,   1,   0,   0   }, /* PA5 */
  83         /* PA4  */ {   0,   0,   0,   1,   0,   0   }, /* PA4 */
  84         /* PA3  */ {   0,   0,   0,   1,   0,   0   }, /* PA3 */
  85         /* PA2  */ {   0,   0,   0,   1,   0,   0   }, /* PA2 */
  86         /* PA1  */ {   1,   0,   0,   0,   0,   0   }, /* FREERUN */
  87         /* PA0  */ {   0,   0,   0,   1,   0,   0   }  /* PA0 */
  88     },
  89
  90     /* Port B configuration */
  91     {   /*            conf ppar psor pdir podr pdat */
  92         /* PB31 */ {   1,   1,   0,   1,   0,   0   }, /* FCC2 MII TX_ER */
  93         /* PB30 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII RX_DV */
  94         /* PB29 */ {   1,   1,   1,   1,   0,   0   }, /* FCC2 MII TX_EN */
  95         /* PB28 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII RX_ER */
  96         /* PB27 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII COL */
  97         /* PB26 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII CRS */
  98         /* PB25 */ {   1,   1,   0,   1,   0,   0   }, /* FCC2 MII TxD[3] */
  99         /* PB24 */ {   1,   1,   0,   1,   0,   0   }, /* FCC2 MII TxD[2] */
 100         /* PB23 */ {   1,   1,   0,   1,   0,   0   }, /* FCC2 MII TxD[1] */
 101         /* PB22 */ {   1,   1,   0,   1,   0,   0   }, /* FCC2 MII TxD[0] */
 102         /* PB21 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII RxD[0] */
 103         /* PB20 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII RxD[1] */
 104         /* PB19 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII RxD[2] */
 105         /* PB18 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII RxD[3] */
 106         /* PB17 */ {   0,   1,   0,   0,   0,   0   }, /* FCC3:RX_DIV */
 107         /* PB16 */ {   0,   1,   0,   0,   0,   0   }, /* FCC3:RX_ERR */
 108         /* PB15 */ {   0,   1,   0,   1,   0,   0   }, /* FCC3:TX_ERR */
 109         /* PB14 */ {   0,   1,   0,   1,   0,   0   }, /* FCC3:TX_EN */
 110         /* PB13 */ {   0,   1,   0,   0,   0,   0   }, /* FCC3:COL */
 111         /* PB12 */ {   0,   1,   0,   0,   0,   0   }, /* FCC3:CRS */
 112         /* PB11 */ {   0,   1,   0,   0,   0,   0   }, /* FCC3:RXD */
 113         /* PB10 */ {   0,   1,   0,   0,   0,   0   }, /* FCC3:RXD */
 114         /* PB9  */ {   0,   1,   0,   0,   0,   0   }, /* FCC3:RXD */
 115         /* PB8  */ {   0,   1,   0,   0,   0,   0   }, /* FCC3:RXD */
 116         /* PB7  */ {   0,   1,   0,   1,   0,   0   }, /* FCC3:TXD */
 117         /* PB6  */ {   0,   1,   0,   1,   0,   0   }, /* FCC3:TXD */
 118         /* PB5  */ {   0,   1,   0,   1,   0,   0   }, /* FCC3:TXD */
 119         /* PB4  */ {   0,   1,   0,   1,   0,   0   }, /* FCC3:TXD */
 120         /* PB3  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
 121         /* PB2  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
 122         /* PB1  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
 123         /* PB0  */ {   0,   0,   0,   0,   0,   0   }  /* pin doesn't exist */
 124     },
 125
 126     /* Port C */
 127     {   /*            conf ppar psor pdir podr pdat */
 128         /* PC31 */ {   0,   0,   0,   1,   0,   0   }, /* PC31 */
 129         /* PC30 */ {   0,   0,   0,   1,   0,   0   }, /* PC30 */
 130         /* PC29 */ {   0,   1,   1,   0,   0,   0   }, /* SCC1 EN *CLSN */
 131         /* PC28 */ {   0,   0,   0,   1,   0,   0   }, /* PC28 */
 132         /* PC27 */ {   0,   0,   0,   1,   0,   0   }, /* UART Clock in */
 133         /* PC26 */ {   0,   0,   0,   1,   0,   0   }, /* PC26 */
 134         /* PC25 */ {   0,   0,   0,   1,   0,   0   }, /* PC25 */
 135         /* PC24 */ {   0,   0,   0,   1,   0,   0   }, /* PC24 */
 136         /* PC23 */ {   0,   1,   0,   1,   0,   0   }, /* ATMTFCLK */
 137         /* PC22 */ {   0,   1,   0,   0,   0,   0   }, /* ATMRFCLK */
 138         /* PC21 */ {   0,   1,   0,   0,   0,   0   }, /* SCC1 EN RXCLK */
 139         /* PC20 */ {   0,   1,   0,   0,   0,   0   }, /* SCC1 EN TXCLK */
 140         /* PC19 */ {   1,   1,   0,   0,   0,   0   }, /* FCC2 MII RX_CLK CLK13 */
 141         /* PC18 */ {   1,   1,   0,   0,   0,   0   }, /* FCC Tx Clock (CLK14) */
 142         /* PC17 */ {   0,   0,   0,   1,   0,   0   }, /* PC17 */
 143         /* PC16 */ {   0,   1,   0,   0,   0,   0   }, /* FCC Tx Clock (CLK16) */
 144         /* PC15 */ {   0,   1,   0,   0,   0,   0   }, /* PC15 */
 145         /* PC14 */ {   0,   1,   0,   0,   0,   0   }, /* SCC1 EN *CD */
 146         /* PC13 */ {   0,   0,   0,   1,   0,   0   }, /* PC13 */
 147         /* PC12 */ {   0,   1,   0,   1,   0,   0   }, /* PC12 */
 148         /* PC11 */ {   0,   0,   0,   1,   0,   0   }, /* LXT971 transmit control */
 149         /* PC10 */ {   0,   0,   0,   1,   0,   0   }, /* FETHMDC */
 150         /* PC9  */ {   0,   0,   0,   0,   0,   0   }, /* FETHMDIO */
 151         /* PC8  */ {   0,   0,   0,   1,   0,   0   }, /* PC8 */
 152         /* PC7  */ {   0,   0,   0,   1,   0,   0   }, /* PC7 */
 153         /* PC6  */ {   0,   0,   0,   1,   0,   0   }, /* PC6 */
 154         /* PC5  */ {   0,   0,   0,   1,   0,   0   }, /* PC5 */
 155         /* PC4  */ {   0,   0,   0,   1,   0,   0   }, /* PC4 */
 156         /* PC3  */ {   0,   0,   0,   1,   0,   0   }, /* PC3 */
 157         /* PC2  */ {   0,   0,   0,   1,   0,   1   }, /* ENET FDE */
 158         /* PC1  */ {   0,   0,   0,   1,   0,   0   }, /* ENET DSQE */
 159         /* PC0  */ {   0,   0,   0,   1,   0,   0   }, /* ENET LBK */
 160     },
 161
 162     /* Port D */
 163     {   /*            conf ppar psor pdir podr pdat */
 164         /* PD31 */ {   0,   1,   0,   0,   0,   0   }, /* SCC1 EN RxD */
 165         /* PD30 */ {   0,   1,   1,   1,   0,   0   }, /* SCC1 EN TxD */
 166         /* PD29 */ {   0,   1,   0,   1,   0,   0   }, /* SCC1 EN TENA */
 167         /* PD28 */ {   1,   1,   0,   0,   0,   0   }, /* SCC2 RxD */
 168         /* PD27 */ {   1,   1,   0,   1,   0,   0   }, /* SCC2 TxD */
 169         /* PD26 */ {   0,   0,   0,   1,   0,   0   }, /* PD26 */
 170         /* PD25 */ {   0,   0,   0,   1,   0,   0   }, /* PD25 */
 171         /* PD24 */ {   0,   0,   0,   1,   0,   0   }, /* PD24 */
 172         /* PD23 */ {   0,   0,   0,   1,   0,   0   }, /* PD23 */
 173         /* PD22 */ {   0,   0,   0,   1,   0,   0   }, /* PD22 */
 174         /* PD21 */ {   0,   0,   0,   1,   0,   0   }, /* PD21 */
 175         /* PD20 */ {   0,   0,   0,   1,   0,   0   }, /* PD20 */
 176         /* PD19 */ {   0,   0,   0,   1,   0,   0   }, /* PD19 */
 177         /* PD18 */ {   0,   0,   0,   1,   0,   0   }, /* PD18 */
 178         /* PD17 */ {   0,   1,   0,   0,   0,   0   }, /* FCC1 ATMRXPRTY */
 179         /* PD16 */ {   0,   1,   0,   1,   0,   0   }, /* FCC1 ATMTXPRTY */
 180         /* PD15 */ {   1,   1,   1,   0,   1,   0   }, /* I2C SDA */
 181         /* PD14 */ {   1,   1,   1,   0,   0,   0   }, /* I2C CLK */
 182         /* PD13 */ {   0,   0,   0,   0,   0,   0   }, /* PD13 */
 183         /* PD12 */ {   0,   0,   0,   0,   0,   0   }, /* PD12 */
 184         /* PD11 */ {   0,   0,   0,   0,   0,   0   }, /* PD11 */
 185         /* PD10 */ {   0,   0,   0,   0,   0,   0   }, /* PD10 */
 186         /* PD9  */ {   0,   1,   0,   1,   0,   0   }, /* SMC1 TXD */
 187         /* PD8  */ {   0,   1,   0,   0,   0,   0   }, /* SMC1 RXD */
 188         /* PD7  */ {   0,   0,   0,   1,   0,   1   }, /* PD7 */
 189         /* PD6  */ {   0,   0,   0,   1,   0,   1   }, /* PD6 */
 190         /* PD5  */ {   0,   0,   0,   1,   0,   1   }, /* PD5 */
 191         /* PD4  */ {   0,   0,   0,   1,   0,   1   }, /* PD4 */
 192         /* PD3  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
 193         /* PD2  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
 194         /* PD1  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
 195         /* PD0  */ {   0,   0,   0,   0,   0,   0   }  /* pin doesn't exist */
 196     }
 197 };
 198
 199 static  uint64_t        next_led_update;
 200 static  uint            led_bit;
 201
 202 void
 203 reset_phy(void)
 204 {
 205         volatile uint *blatch;
 206 #if 0
 207         int     i;
 208 #endif
 209         blatch = (volatile uint *)CFG_LBC_CFGLATCH_BASE;
 210
 211         /* reset Giga bit Ethernet port if needed here */
 212
 213 #if 1
 214         *blatch &= ~0x000000c0;
 215         udelay(100);
 216 #else
 217         *blatch = 0;
 218         asm("eieio");
 219         for (i=0; i<1000; i++)
 220                 udelay(1000);
 221 #endif
 222         *blatch = 0x000000c1;   /* Light one led, too */
 223         udelay(1000);
 224
 225 #if 0   /* This is the port we really want to use for debugging. */
 226         /* reset the CPM FEC port */
 227 #if (CONFIG_ETHER_INDEX == 2)
 228         bcsr->bcsr2 &= ~FETH2_RST;
 229         udelay(2);
 230         bcsr->bcsr2 |=  FETH2_RST;
 231         udelay(1000);
 232 #elif (CONFIG_ETHER_INDEX == 3)
 233         bcsr->bcsr3 &= ~FETH3_RST;
 234         udelay(2);
 235         bcsr->bcsr3 |=  FETH3_RST;
 236         udelay(1000);
 237 #endif
 238 #if defined(CONFIG_MII) && defined(CONFIG_ETHER_ON_FCC)
 239         /* reset PHY */
 240         miiphy_reset("FCC1 ETHERNET", 0x0);
 241
 242         /* change PHY address to 0x02 */
 243         bb_miiphy_write(NULL, 0, PHY_MIPSCR, 0xf028);
 244
 245         bb_miiphy_write(NULL, 0x02, PHY_BMCR,
 246                         PHY_BMCR_AUTON | PHY_BMCR_RST_NEG);
 247 #endif /* CONFIG_MII */
 248 #endif
 249 }
 250
 251 int
 252 board_early_init_f(void)
 253 {
 254 #if defined(CONFIG_PCI)
 255     volatile immap_t *immr = (immap_t *)CFG_IMMR;
 256     volatile ccsr_pcix_t *pci = &immr->im_pcix;
 257
 258     pci->peer &= 0xfffffffdf; /* disable master abort */
 259 #endif
 260
 261         /* Why is the phy reset done _after_ the ethernet
 262          * initialization in lib_ppc/board.c?
 263          * Do it here so it's done before the TSECs are used.
 264          */
 265         reset_phy();
 266
 267         return 0;
 268 }
 269
 270 int
 271 checkboard(void)
 272 {
 273         printf ("Board: Silicon Tx GPPP SSA Board\n");
 274         return (0);
 275 }
 276
 277 /* Blinkin' LEDS for Robert.
 278 */
 279 void
 280 show_activity(int flag)
 281 {
 282         volatile uint *blatch;
 283
 284         if (next_led_update > get_ticks())
 285                 return;
 286
 287         blatch = (volatile uint *)CFG_LBC_CFGLATCH_BASE;
 288
 289         led_bit >>= 1;
 290         if (led_bit == 0)
 291                 led_bit = 0x08;
 292         *blatch = (0xc0 | led_bit);
 293         eieio();
 294         next_led_update += (get_tbclk() / 4);
 295 }
 296
 297 long int
 298 initdram (int board_type)
 299 {
 300         long dram_size = 0;
 301         extern long spd_sdram (void);
 302
 303 #if defined(CONFIG_DDR_DLL)
 304         {
 305                 volatile immap_t *immap = (immap_t *)CFG_IMMR;
 306                 volatile ccsr_gur_t *gur= &immap->im_gur;
 307                 uint temp_ddrdll = 0;
 308
 309                 /* Work around to stabilize DDR DLL */
 310                 temp_ddrdll = gur->ddrdllcr;
 311                 gur->ddrdllcr = ((temp_ddrdll & 0xff) << 16) | 0x80000000;
 312                 asm("sync;isync;msync");
 313         }
 314 #endif
 315
 316         dram_size = spd_sdram ();
 317
 318 #if defined(CONFIG_DDR_ECC)
 319         /* Initialize and enable DDR ECC.
 320         */
 321         ddr_enable_ecc(dram_size);
 322 #endif
 323
 324         return dram_size;
 325 }
 326
 327
 328 #if defined(CFG_DRAM_TEST)
 329 int testdram (void)
 330 {
 331         uint *pstart = (uint *) CFG_MEMTEST_START;
 332         uint *pend = (uint *) CFG_MEMTEST_END;
 333         uint *p;
 334
 335         printf("SDRAM test phase 1:\n");
 336         for (p = pstart; p < pend; p++)
 337                 *p = 0xaaaaaaaa;
 338
 339         for (p = pstart; p < pend; p++) {
 340                 if (*p != 0xaaaaaaaa) {
 341                         printf ("SDRAM test fails at: %08x\n", (uint) p);
 342                         return 1;
 343                 }
 344         }
 345
 346         printf("SDRAM test phase 2:\n");
 347         for (p = pstart; p < pend; p++)
 348                 *p = 0x55555555;
 349
 350         for (p = pstart; p < pend; p++) {
 351                 if (*p != 0x55555555) {
 352                         printf ("SDRAM test fails at: %08x\n", (uint) p);
 353                         return 1;
 354                 }
 355         }
 356
 357         printf("SDRAM test passed.\n");
 358         return 0;
 359 }
 360 #endif
 361
 362 #if defined(CONFIG_PCI)
 363
 364 /*
 365  * Initialize PCI Devices, report devices found.
 366  */
 367
 368 #ifndef CONFIG_PCI_PNP
 369 static struct pci_config_table pci_stxgp3_config_table[] = {
 370     { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 371       PCI_IDSEL_NUMBER, PCI_ANY_ID,
 372       pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
 373                                    PCI_ENET0_MEMADDR,
 374                                    PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER
 375       } },
 376     { }
 377 };
 378 #endif
 379
 380
 381 static struct pci_controller hose = {
 382 #ifndef CONFIG_PCI_PNP
 383         config_table: pci_stxgp3_config_table,
 384 #endif
 385 };
 386
 387 #endif  /* CONFIG_PCI */
 388
 389
 390 void
 391 pci_init_board(void)
 392 {
 393 #ifdef CONFIG_PCI
 394         extern void pci_mpc85xx_init(struct pci_controller *hose);
 395
 396         pci_mpc85xx_init(&hose);
 397 #endif /* CONFIG_PCI */
 398 }