include/configs/uc100.h

   1 /*
   2  * (C) Copyright 2000-2005
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 /*
  25  * board/config.h - configuration options, board specific
  26  */
  27
  28 #ifndef __CONFIG_H
  29 #define __CONFIG_H
  30
  31 /*
  32  * High Level Configuration Options
  33  * (easy to change)
  34  */
  35
  36 #define CONFIG_MPC860           1
  37 #define CONFIG_MPC860T          1
  38 #define CONFIG_MPC862           1       /* enable 862 since the         */
  39 #define CONFIG_MPC857           1       /* 857 is a variant of the 862  */
  40
  41 #define CONFIG_UC100            1       /* ...on a UC100 module         */
  42
  43 #define MPC8XX_FACT             4               /* Multiply by 4        */
  44 #define MPC8XX_XIN              25000000        /* 25.0 MHz in          */
  45 #define CONFIG_8xx_GCLK_FREQ    (MPC8XX_FACT * MPC8XX_XIN)
  46                                     /* define if cant' use get_gclk_freq */
  47
  48 #define CONFIG_8xx_CONS_SMC1    1       /* Console is on SMC1           */
  49 #undef  CONFIG_8xx_CONS_SMC2
  50 #undef  CONFIG_8xx_CONS_NONE
  51
  52 #define CONFIG_MISC_INIT_R      1       /* call misc_init_r()           */
  53
  54 #define CONFIG_BAUDRATE         115200  /* console baudrate = 115kbps   */
  55
  56 #define CONFIG_BOOTCOUNT_LIMIT
  57
  58 #define CONFIG_BOOTDELAY        5       /* autoboot after 5 seconds     */
  59
  60 #define CONFIG_BOARD_TYPES      1       /* support board types          */
  61
  62 #define CONFIG_PREBOOT  "echo;" \
  63         "echo Type \\\"run flash_nfs\\\" to mount root filesystem over NFS;" \
  64         "echo"
  65
  66 #undef  CONFIG_BOOTARGS
  67
  68 #define CONFIG_EXTRA_ENV_SETTINGS                                       \
  69         "netdev=eth0\0"                                                 \
  70         "nfsargs=setenv bootargs root=/dev/nfs rw "                     \
  71                 "nfsroot=${serverip}:${rootpath}\0"                     \
  72         "ramargs=setenv bootargs root=/dev/ram rw\0"                    \
  73         "addip=setenv bootargs ${bootargs} "                            \
  74                 "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}"      \
  75                 ":${hostname}:${netdev}:off panic=1\0"                  \
  76         "addtty=setenv bootargs ${bootargs} console=ttyS0,${baudrate}\0"\
  77         "flash_nfs=run nfsargs addip addtty;"                           \
  78                 "bootm ${kernel_addr}\0"                                \
  79         "flash_self=run ramargs addip addtty;"                          \
  80                 "bootm ${kernel_addr} ${ramdisk_addr}\0"                \
  81         "net_nfs=tftp 200000 ${bootfile};run nfsargs addip addtty;"     \
  82                 "bootm\0"                                               \
  83         "rootpath=/opt/eldk/ppc_8xx\0"                                  \
  84         "bootfile=/tftpboot/uc100/uImage\0"                             \
  85         "kernel_addr=40000000\0"                                        \
  86         "ramdisk_addr=40100000\0"                                       \
  87         "load=tftp 100000 /tftpboot/uc100/u-boot.bin\0"                 \
  88         "update=protect off 40700000 4073ffff;era 40700000 4073ffff;"   \
  89                 "cp.b 100000 40700000 ${filesize};"                     \
  90                 "setenv filesize;saveenv\0"                             \
  91         ""
  92 #define CONFIG_BOOTCOMMAND      "run flash_self"
  93
  94 #define CONFIG_LOADS_ECHO       1       /* echo on for serial download  */
  95 #undef  CFG_LOADS_BAUD_CHANGE           /* don't allow baudrate change  */
  96
  97 #undef  CONFIG_WATCHDOG                 /* watchdog disabled            */
  98
  99 #undef CONFIG_STATUS_LED                /* no status-led                */
 100
 101 /*
 102  * BOOTP options
 103  */
 104 #define CONFIG_BOOTP_SUBNETMASK
 105 #define CONFIG_BOOTP_GATEWAY
 106 #define CONFIG_BOOTP_HOSTNAME
 107 #define CONFIG_BOOTP_BOOTPATH
 108 #define CONFIG_BOOTP_BOOTFILESIZE
 109
 110
 111 #define CONFIG_MAC_PARTITION
 112 #define CONFIG_DOS_PARTITION
 113
 114 #undef CONFIG_RTC_MPC8xx
 115 #define CFG_I2C_RTC_ADDR        0x51    /* PCF8563 RTC                  */
 116 #define CONFIG_RTC_PCF8563              /* use Philips PCF8563 RTC      */
 117
 118 /*
 119  * Power On Self Test support
 120  */
 121 #define CONFIG_POST           ( CFG_POST_CACHE          | \
 122                                 CFG_POST_MEMORY         | \
 123                                 CFG_POST_CPU            | \
 124                                 CFG_POST_UART           | \
 125                                 CFG_POST_SPR )
 126 #undef  CONFIG_POST
 127
 128
 129 /*
 130  * Command line configuration.
 131  */
 132 #include <config_cmd_default.h>
 133
 134 #define CONFIG_CMD_ASKENV
 135 #define CONFIG_CMD_DATE
 136 #define CONFIG_CMD_DHCP
 137 #define CONFIG_CMD_EEPROM
 138 #define CONFIG_CMD_ELF
 139 #define CONFIG_CMD_FAT
 140 #define CONFIG_CMD_I2C
 141 #define CONFIG_CMD_IDE
 142 #define CONFIG_CMD_MII
 143 #define CONFIG_CMD_NFS
 144 #define CONFIG_CMD_PING
 145 #define CONFIG_CMD_SNTP
 146
 147 #ifdef CONFIG_POST
 148 #define CONFIG_CMD_DIAG
 149 #endif
 150
 151
 152 #define CONFIG_NETCONSOLE
 153
 154 /*
 155  * Miscellaneous configurable options
 156  */
 157 #define CFG_LONGHELP                    /* undef to save memory         */
 158 #define CFG_PROMPT              "=> "   /* Monitor Command Prompt       */
 159
 160 #if 0
 161 #define CFG_HUSH_PARSER         1       /* use "hush" command parser    */
 162 #endif
 163 #ifdef  CFG_HUSH_PARSER
 164 #define CFG_PROMPT_HUSH_PS2     "> "
 165 #endif
 166
 167 #if defined(CONFIG_CMD_KGDB)
 168 #define CFG_CBSIZE              1024    /* Console I/O Buffer Size      */
 169 #else
 170 #define CFG_CBSIZE              256     /* Console I/O Buffer Size      */
 171 #endif
 172 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
 173 #define CFG_MAXARGS             16      /* max number of command args   */
 174 #define CFG_BARGSIZE    CFG_CBSIZE      /* Boot Argument Buffer Size    */
 175
 176 #define CFG_MEMTEST_START       0x0400000       /* memtest works on     */
 177 #define CFG_MEMTEST_END         0x0C00000       /* 4 ... 12 MB in DRAM  */
 178
 179 #define CFG_LOAD_ADDR           0x100000        /* default load address */
 180
 181 #define CFG_HZ                  1000    /* decrementer freq: 1 ms ticks */
 182
 183 #define CFG_BAUDRATE_TABLE      { 9600, 19200, 38400, 57600, 115200 }
 184
 185 #define CONFIG_AUTO_COMPLETE    1       /* add autocompletion support   */
 186
 187 /*
 188  * Low Level Configuration Settings
 189  * (address mappings, register initial values, etc.)
 190  * You should know what you are doing if you make changes here.
 191  */
 192 /*-----------------------------------------------------------------------
 193  * Internal Memory Mapped Register
 194  */
 195 #define CFG_IMMR                0xF0000000
 196
 197 /*-----------------------------------------------------------------------
 198  * Definitions for initial stack pointer and data area (in DPRAM)
 199  */
 200 #define CFG_INIT_RAM_ADDR       CFG_IMMR
 201 #define CFG_INIT_RAM_END        0x2F00  /* End of used area in DPRAM    */
 202 #define CFG_GBL_DATA_SIZE       64  /* size in bytes reserved for initial data */
 203 #define CFG_GBL_DATA_OFFSET     (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
 204 #define CFG_INIT_SP_OFFSET      CFG_GBL_DATA_OFFSET
 205
 206 /*-----------------------------------------------------------------------
 207  * Start addresses for the final memory configuration
 208  * (Set up by the startup code)
 209  * Please note that CFG_SDRAM_BASE _must_ start at 0
 210  */
 211 #define CFG_SDRAM_BASE          0x00000000
 212 #define CFG_FLASH_BASE          0x40000000
 213 #define CFG_MONITOR_LEN         (256 << 10)     /* Reserve 256 kB for Monitor   */
 214 #define CFG_MONITOR_BASE        (CFG_FLASH_BASE+0x00700000) /* resetvec fff00100*/
 215 #define CFG_MALLOC_LEN          (128 << 10)     /* Reserve 128 kB for malloc()  */
 216
 217 /*-----------------------------------------------------------------------
 218  * Address accessed to reset the board - must not be mapped/assigned
 219  */
 220 #define CFG_RESET_ADDRESS       0x90000000
 221
 222 /*
 223  * For booting Linux, the board info and command line data
 224  * have to be in the first 8 MB of memory, since this is
 225  * the maximum mapped by the Linux kernel during initialization.
 226  */
 227 #define CFG_BOOTMAPSZ           (8 << 20)       /* Initial Memory map for Linux */
 228
 229 /*-----------------------------------------------------------------------
 230  * FLASH organization
 231  */
 232 #define CFG_FLASH_CFI                           /* The flash is CFI compatible  */
 233 #define CFG_FLASH_CFI_DRIVER                    /* Use common CFI driver        */
 234 #define CFG_FLASH_CFI_AMD_RESET 1               /* AMD RESET for STM 29W320DB!  */
 235
 236 #define CFG_MAX_FLASH_BANKS     1       /* max number of memory banks           */
 237 #define CFG_MAX_FLASH_SECT      256     /* max number of sectors on one chip    */
 238
 239 #define CFG_FLASH_ERASE_TOUT    120000  /* Timeout for Flash Erase (in ms)      */
 240 #define CFG_FLASH_WRITE_TOUT    500     /* Timeout for Flash Write (in ms)      */
 241
 242 #define CFG_FLASH_EMPTY_INFO            /* print 'E' for empty sector on flinfo */
 243
 244 #define CFG_ENV_IS_IN_FLASH     1
 245 #define CFG_ENV_ADDR            (CFG_MONITOR_BASE+CFG_MONITOR_LEN)
 246 #define CFG_ENV_SECT_SIZE       0x20000         /* size of one complete sector  */
 247 #define CFG_ENV_SIZE            0x4000  /* Total Size of Environment Sector     */
 248
 249 /* Address and size of Redundant Environment Sector     */
 250 #define CFG_ENV_ADDR_REDUND     (CFG_ENV_ADDR+CFG_ENV_SECT_SIZE)
 251 #define CFG_ENV_SIZE_REDUND     (CFG_ENV_SIZE)
 252
 253 /*-----------------------------------------------------------------------
 254  * Cache Configuration
 255  */
 256 #define CFG_CACHELINE_SIZE      16      /* For all MPC8xx CPUs                  */
 257 #if defined(CONFIG_CMD_KGDB)
 258 #define CFG_CACHELINE_SHIFT     4       /* log base 2 of the above value        */
 259 #endif
 260
 261 /*-----------------------------------------------------------------------
 262  * SYPCR - System Protection Control                            11-9
 263  * SYPCR can only be written once after reset!
 264  *-----------------------------------------------------------------------
 265  * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
 266  */
 267 #if defined(CONFIG_WATCHDOG)
 268 #define CFG_SYPCR       (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
 269                          SYPCR_SWE  | SYPCR_SWRI| SYPCR_SWP)
 270 #else
 271 #define CFG_SYPCR       (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
 272 #endif
 273
 274 /*-----------------------------------------------------------------------
 275  * SIUMCR - SIU Module Configuration                            11-6
 276  *-----------------------------------------------------------------------
 277  * PCMCIA config., multi-function pin tri-state
 278  */
 279 #define CFG_SIUMCR      (SIUMCR_FRC | SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
 280
 281 /*-----------------------------------------------------------------------
 282  * TBSCR - Time Base Status and Control                         11-26
 283  *-----------------------------------------------------------------------
 284  * Clear Reference Interrupt Status, Timebase freezing enabled
 285  */
 286 #define CFG_TBSCR       (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
 287
 288 /*-----------------------------------------------------------------------
 289  * RTCSC - Real-Time Clock Status and Control Register          11-27
 290  *-----------------------------------------------------------------------
 291  */
 292 #define CFG_RTCSC       (RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
 293
 294 /*-----------------------------------------------------------------------
 295  * PISCR - Periodic Interrupt Status and Control                11-31
 296  *-----------------------------------------------------------------------
 297  * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
 298  */
 299 #define CFG_PISCR       (PISCR_PS | PISCR_PITF)
 300
 301 /*-----------------------------------------------------------------------
 302  * PLPRCR - PLL, Low-Power, and Reset Control Register          15-30
 303  *-----------------------------------------------------------------------
 304  * Reset PLL lock status sticky bit, timer expired status bit and timer
 305  * interrupt status bit
 306  */
 307 #define CFG_PLPRCR      (((MPC8XX_FACT-1) << PLPRCR_MF_SHIFT) | \
 308                                 PLPRCR_SPLSS | PLPRCR_TEXPS | PLPRCR_TMIST)
 309
 310 /*-----------------------------------------------------------------------
 311  * SCCR - System Clock and reset Control Register               15-27
 312  *-----------------------------------------------------------------------
 313  * Set clock output, timebase and RTC source and divider,
 314  * power management and some other internal clocks
 315  */
 316 #define SCCR_MASK       0x00000000
 317 #define CFG_SCCR        (SCCR_EBDF11)
 318
 319 /*-----------------------------------------------------------------------
 320  * PCMCIA stuff
 321  *-----------------------------------------------------------------------
 322  *
 323  */
 324 #define CFG_PCMCIA_MEM_ADDR     (0xE0000000)
 325 #define CFG_PCMCIA_MEM_SIZE     ( 64 << 20 )
 326 #define CFG_PCMCIA_DMA_ADDR     (0xE4000000)
 327 #define CFG_PCMCIA_DMA_SIZE     ( 64 << 20 )
 328 #define CFG_PCMCIA_ATTRB_ADDR   (0xE8000000)
 329 #define CFG_PCMCIA_ATTRB_SIZE   ( 64 << 20 )
 330 #define CFG_PCMCIA_IO_ADDR      (0xEC000000)
 331 #define CFG_PCMCIA_IO_SIZE      ( 64 << 20 )
 332
 333 /*-----------------------------------------------------------------------
 334  * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
 335  *-----------------------------------------------------------------------
 336  */
 337
 338 #define CONFIG_IDE_8xx_PCCARD   1       /* Use IDE with PC Card Adapter */
 339
 340 #undef  CONFIG_IDE_8xx_DIRECT           /* Direct IDE    not supported  */
 341 #undef  CONFIG_IDE_LED                  /* LED   for ide not supported  */
 342 #undef  CONFIG_IDE_RESET                /* reset for ide not supported  */
 343
 344 #define CFG_IDE_MAXBUS          1       /* max. 1 IDE bus               */
 345 #define CFG_IDE_MAXDEVICE       1       /* max. 1 drive per IDE bus     */
 346
 347 #define CFG_ATA_IDE0_OFFSET     0x0000
 348
 349 #define CFG_ATA_BASE_ADDR       CFG_PCMCIA_MEM_ADDR
 350
 351 /* Offset for data I/O                  */
 352 #define CFG_ATA_DATA_OFFSET     (CFG_PCMCIA_MEM_SIZE + 0x320)
 353
 354 /* Offset for normal register accesses  */
 355 #define CFG_ATA_REG_OFFSET      (2 * CFG_PCMCIA_MEM_SIZE + 0x320)
 356
 357 /* Offset for alternate registers       */
 358 #define CFG_ATA_ALT_OFFSET      0x0100
 359
 360 /*-----------------------------------------------------------------------
 361  *
 362  *-----------------------------------------------------------------------
 363  *
 364  */
 365 #define CFG_DER 0
 366
 367 /*
 368  * Init Memory Controller:
 369  *
 370  * BR0/1 and OR0/1 (FLASH)
 371  */
 372
 373 #define FLASH_BASE0_PRELIM      0x40000000      /* FLASH bank #0        */
 374 #define FLASH_BASE1_PRELIM      0x60000000      /* FLASH bank #0        */
 375
 376 /* used to re-map FLASH both when starting from SRAM or FLASH:
 377  * restrict access enough to keep SRAM working (if any)
 378  * but not too much to meddle with FLASH accesses
 379  */
 380 #define CFG_REMAP_OR_AM         0x80000000      /* OR addr mask */
 381 #define CFG_PRELIM_OR_AM        0xFF800000      /* OR addr mask */
 382
 383 /*
 384  * FLASH timing:
 385  */
 386 #define CFG_OR_TIMING_FLASH     (0x00000d24)
 387
 388 #define CFG_OR0_REMAP   (CFG_REMAP_OR_AM  | CFG_OR_TIMING_FLASH)
 389 #define CFG_OR0_PRELIM  (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
 390 #define CFG_BR0_PRELIM  ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V )
 391
 392 #define CFG_BR1_PRELIM  0x00000081  /* Chip select for SDRAM (32 Bit, UPMA) */
 393 #define CFG_OR1_PRELIM  0xfc000a00
 394 #define CFG_BR2_PRELIM  0x80000001  /* Chip select for SRAM (32 Bit, GPCM) */
 395 #define CFG_OR2_PRELIM  0xfff00d24
 396 #define CFG_BR3_PRELIM  0x80600401  /* Chip select for Display (8 Bit, GPCM) */
 397 #define CFG_OR3_PRELIM  0xffff8f44
 398 #define CFG_BR4_PRELIM  0xc05108c1  /* Chip select for Interbus MPM (16 Bit, UPMB) */
 399 #define CFG_OR4_PRELIM  0xffff0300
 400 #define CFG_BR5_PRELIM  0xc0500401  /* Chip select for Interbus Status (8 Bit, GPCM) */
 401 #define CFG_OR5_PRELIM  0xffff8db0
 402
 403 /*
 404  * Memory Periodic Timer Prescaler
 405  *
 406  * The Divider for PTA (refresh timer) configuration is based on an
 407  * example SDRAM configuration (64 MBit, one bank). The adjustment to
 408  * the number of chip selects (NCS) and the actually needed refresh
 409  * rate is done by setting MPTPR.
 410  *
 411  * PTA is calculated from
 412  *      PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
 413  *
 414  *      gclk      CPU clock (not bus clock!)
 415  *      Trefresh  Refresh cycle * 4 (four word bursts used)
 416  *
 417  * 4096  Rows from SDRAM example configuration
 418  * 1000  factor s -> ms
 419  *   32  PTP (pre-divider from MPTPR) from SDRAM example configuration
 420  *    4  Number of refresh cycles per period
 421  *   64  Refresh cycle in ms per number of rows
 422  * --------------------------------------------
 423  * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
 424  *
 425  *  50 MHz =>  50.000.000 / Divider =  98
 426  *  66 Mhz =>  66.000.000 / Divider = 129
 427  *  80 Mhz =>  80.000.000 / Divider = 156
 428  * 100 Mhz => 100.000.000 / Divider = 195
 429  */
 430
 431 #define CFG_PTA_PER_CLK ((4096 * 32 * 1000) / (4 * 64))
 432 #define CFG_MAMR_PTA    98
 433
 434 /*
 435  * For 16 MBit, refresh rates could be 31.3 us
 436  * (= 64 ms / 2K = 125 / quad bursts).
 437  * For a simpler initialization, 15.6 us is used instead.
 438  *
 439  * #define CFG_MPTPR_2BK_2K     MPTPR_PTP_DIV32         for 2 banks
 440  * #define CFG_MPTPR_1BK_2K     MPTPR_PTP_DIV64         for 1 bank
 441  */
 442 #define CFG_MPTPR_2BK_4K        MPTPR_PTP_DIV16         /* setting for 2 banks  */
 443 #define CFG_MPTPR_1BK_4K        MPTPR_PTP_DIV32         /* setting for 1 bank   */
 444
 445 /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit         */
 446 #define CFG_MPTPR_2BK_8K        MPTPR_PTP_DIV8          /* setting for 2 banks  */
 447 #define CFG_MPTPR_1BK_8K        MPTPR_PTP_DIV16         /* setting for 1 bank   */
 448
 449 /*
 450  * MAMR settings for SDRAM
 451  */
 452
 453 /* 8 column SDRAM */
 454 #define CFG_MAMR_8COL   ((CFG_MAMR_PTA << MAMR_PTA_SHIFT)  | MAMR_PTAE      |   \
 455                          MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 |   \
 456                          MAMR_RLFA_1X    | MAMR_WLFA_1X    | MAMR_TLFA_4X)
 457 /* 9 column SDRAM */
 458 #define CFG_MAMR_9COL   ((CFG_MAMR_PTA << MAMR_PTA_SHIFT)  | MAMR_PTAE      |   \
 459                          MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 |   \
 460                          MAMR_RLFA_1X    | MAMR_WLFA_1X    | MAMR_TLFA_4X)
 461
 462 #define CFG_MAMR_VAL    0x30904114      /* for SDRAM */
 463 #define CFG_MBMR_VAL    0xff001111      /* for Interbus-MPM */
 464
 465 /*-----------------------------------------------------------------------
 466  * I2C stuff
 467  */
 468
 469 /* enable I2C and select the hardware/software driver */
 470 #undef  CONFIG_HARD_I2C                 /* I2C with hardware support    */
 471 #define CONFIG_SOFT_I2C         1       /* I2C bit-banged               */
 472
 473 #define CFG_I2C_SPEED           93000   /* 93 kHz is supposed to work   */
 474 #define CFG_I2C_SLAVE           0xFE
 475
 476 #ifdef CONFIG_SOFT_I2C
 477 /*
 478  * Software (bit-bang) I2C driver configuration
 479  */
 480 #define PB_SCL          0x00000020      /* PB 26 */
 481 #define PB_SDA          0x00000010      /* PB 27 */
 482
 483 #define I2C_INIT        (immr->im_cpm.cp_pbdir |=  PB_SCL)
 484 #define I2C_ACTIVE      (immr->im_cpm.cp_pbdir |=  PB_SDA)
 485 #define I2C_TRISTATE    (immr->im_cpm.cp_pbdir &= ~PB_SDA)
 486 #define I2C_READ        ((immr->im_cpm.cp_pbdat & PB_SDA) != 0)
 487 #define I2C_SDA(bit)    if(bit) immr->im_cpm.cp_pbdat |=  PB_SDA; \
 488                         else    immr->im_cpm.cp_pbdat &= ~PB_SDA
 489 #define I2C_SCL(bit)    if(bit) immr->im_cpm.cp_pbdat |=  PB_SCL; \
 490                         else    immr->im_cpm.cp_pbdat &= ~PB_SCL
 491 #define I2C_DELAY       udelay(2)       /* 1/4 I2C clock duration */
 492 #endif  /* CONFIG_SOFT_I2C */
 493
 494 /*-----------------------------------------------------------------------
 495  * I2C EEPROM (24C164)
 496  */
 497 #define CFG_I2C_EEPROM_ADDR     0x58    /* EEPROM AT24C164              */
 498 #define CFG_I2C_EEPROM_ADDR_LEN 1
 499 #define CFG_EEPROM_PAGE_WRITE_DELAY_MS  10      /* takes up to 10 msec  */
 500 #define CFG_EEPROM_PAGE_WRITE_BITS      4
 501
 502 /*
 503  * Internal Definitions
 504  *
 505  * Boot Flags
 506  */
 507 #define BOOTFLAG_COLD   0x01            /* Normal Power-On: Boot from FLASH     */
 508 #define BOOTFLAG_WARM   0x02            /* Software reboot                      */
 509
 510 #define CONFIG_FEC_ENET         1       /* use FEC ethernet  */
 511 #define FEC_ENET
 512 #define CONFIG_MII
 513 #define CFG_DISCOVER_PHY        1
 514
 515 #endif  /* __CONFIG_H */