uboot/include/configs/TQM885D.h
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   1/*
   2 * (C) Copyright 2000-2005
   3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 *
   5 * (C) Copyright 2006
   6 * Martin Krause, TQ-Systems GmBH, martin.krause@tqs.de
   7 *
   8 * See file CREDITS for list of people who contributed to this
   9 * project.
  10 *
  11 * This program is free software; you can redistribute it and/or
  12 * modify it under the terms of the GNU General Public License as
  13 * published by the Free Software Foundation; either version 2 of
  14 * the License, or (at your option) any later version.
  15 *
  16 * This program is distributed in the hope that it will be useful,
  17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 * GNU General Public License for more details.
  20 *
  21 * You should have received a copy of the GNU General Public License
  22 * along with this program; if not, write to the Free Software
  23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  24 * MA 02111-1307 USA
  25 */
  26
  27/*
  28 * board/config.h - configuration options, board specific
  29 */
  30
  31#ifndef __CONFIG_H
  32#define __CONFIG_H
  33
  34/*
  35 * High Level Configuration Options
  36 * (easy to change)
  37 */
  38
  39#define CONFIG_MPC885           1       /* This is a MPC885 CPU         */
  40#define CONFIG_TQM885D          1       /* ...on a TQM88D module        */
  41
  42#define CONFIG_8xx_OSCLK                10000000        /*  10 MHz - PLL input clock    */
  43#define CONFIG_SYS_8xx_CPUCLK_MIN               15000000        /*  15 MHz - CPU minimum clock  */
  44#define CONFIG_SYS_8xx_CPUCLK_MAX               133000000       /* 133 MHz - CPU maximum clock  */
  45#define CONFIG_8xx_CPUCLK_DEFAULT       66000000        /*  66 MHz - CPU default clock  */
  46                                                /* (it will be used if there is no      */
  47                                                /* 'cpuclk' variable with valid value)  */
  48
  49#define CONFIG_8xx_CONS_SMC1    1       /* Console is on SMC1           */
  50#define CONFIG_SYS_SMC_RXBUFLEN 128
  51#define CONFIG_SYS_MAXIDLE      10
  52#define CONFIG_BAUDRATE         115200  /* console baudrate = 115kbps   */
  53
  54#define CONFIG_BOOTCOUNT_LIMIT
  55
  56#define CONFIG_BOOTDELAY        5       /* autoboot after 5 seconds     */
  57
  58#define CONFIG_BOARD_TYPES      1       /* support board types          */
  59
  60#define CONFIG_PREBOOT  "echo;" \
  61        "echo Type \\\"run flash_nfs\\\" to mount root filesystem over NFS;" \
  62        "echo"
  63
  64#undef  CONFIG_BOOTARGS
  65
  66#define CONFIG_EXTRA_ENV_SETTINGS                                       \
  67        "netdev=eth0\0"                                                 \
  68        "nfsargs=setenv bootargs root=/dev/nfs rw "                     \
  69                "nfsroot=${serverip}:${rootpath}\0"                     \
  70        "ramargs=setenv bootargs root=/dev/ram rw\0"                    \
  71        "addip=setenv bootargs ${bootargs} "                            \
  72                "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}"      \
  73                ":${hostname}:${netdev}:off panic=1\0"                  \
  74        "flash_nfs=run nfsargs addip;"                                  \
  75                "bootm ${kernel_addr}\0"                                \
  76        "flash_self=run ramargs addip;"                                 \
  77                "bootm ${kernel_addr} ${ramdisk_addr}\0"                \
  78        "net_nfs=tftp 200000 ${bootfile};run nfsargs addip;bootm\0"     \
  79        "rootpath=/opt/eldk/ppc_8xx\0"                                  \
  80        "bootfile=/tftpboot/TQM885D/uImage\0"                           \
  81        "fdt_addr=400C0000\0"                                           \
  82        "kernel_addr=40100000\0"                                        \
  83        "ramdisk_addr=40280000\0"                                       \
  84        "load=tftp 200000 ${u-boot}\0"                                  \
  85        "update=protect off 40000000 +${filesize};"                     \
  86                "erase 40000000 +${filesize};"                          \
  87                "cp.b 200000 40000000 ${filesize};"                     \
  88                "protect on 40000000 +${filesize}\0"                    \
  89        ""
  90#define CONFIG_BOOTCOMMAND      "run flash_self"
  91
  92#define CONFIG_LOADS_ECHO       1       /* echo on for serial download  */
  93#undef  CONFIG_SYS_LOADS_BAUD_CHANGE            /* don't allow baudrate change  */
  94
  95#undef  CONFIG_WATCHDOG                 /* watchdog disabled            */
  96
  97#define CONFIG_STATUS_LED       1       /* Status LED enabled           */
  98
  99#undef  CONFIG_CAN_DRIVER               /* CAN Driver support disabled  */
 100
 101/* enable I2C and select the hardware/software driver */
 102#undef  CONFIG_HARD_I2C                 /* I2C with hardware support    */
 103#define CONFIG_SOFT_I2C         1       /* I2C bit-banged               */
 104
 105#define CONFIG_SYS_I2C_SPEED            93000   /* 93 kHz is supposed to work   */
 106#define CONFIG_SYS_I2C_SLAVE            0xFE
 107
 108#ifdef CONFIG_SOFT_I2C
 109/*
 110 * Software (bit-bang) I2C driver configuration
 111 */
 112#define PB_SCL          0x00000020      /* PB 26 */
 113#define PB_SDA          0x00000010      /* PB 27 */
 114
 115#define I2C_INIT        (immr->im_cpm.cp_pbdir |=  PB_SCL)
 116#define I2C_ACTIVE      (immr->im_cpm.cp_pbdir |=  PB_SDA)
 117#define I2C_TRISTATE    (immr->im_cpm.cp_pbdir &= ~PB_SDA)
 118#define I2C_READ        ((immr->im_cpm.cp_pbdat & PB_SDA) != 0)
 119#define I2C_SDA(bit)    if(bit) immr->im_cpm.cp_pbdat |=  PB_SDA; \
 120                        else    immr->im_cpm.cp_pbdat &= ~PB_SDA
 121#define I2C_SCL(bit)    if(bit) immr->im_cpm.cp_pbdat |=  PB_SCL; \
 122                        else    immr->im_cpm.cp_pbdat &= ~PB_SCL
 123#define I2C_DELAY       udelay(2)       /* 1/4 I2C clock duration */
 124#endif  /* CONFIG_SOFT_I2C */
 125
 126#define CONFIG_SYS_I2C_EEPROM_ADDR      0x50            /* EEPROM AT24C??       */
 127#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 2                /* two byte address     */
 128#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS       4
 129#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS   10      /* and takes up to 10 msec */
 130
 131# define CONFIG_RTC_DS1337 1
 132# define CONFIG_SYS_I2C_RTC_ADDR 0x68
 133
 134/*
 135 * BOOTP options
 136 */
 137#define CONFIG_BOOTP_SUBNETMASK
 138#define CONFIG_BOOTP_GATEWAY
 139#define CONFIG_BOOTP_HOSTNAME
 140#define CONFIG_BOOTP_BOOTPATH
 141#define CONFIG_BOOTP_BOOTFILESIZE
 142
 143
 144#define CONFIG_MAC_PARTITION
 145#define CONFIG_DOS_PARTITION
 146
 147#undef CONFIG_RTC_MPC8xx                /* MPC885 does not support RTC  */
 148
 149#define CONFIG_TIMESTAMP                /* but print image timestmps    */
 150
 151
 152/*
 153 * Command line configuration.
 154 */
 155#include <config_cmd_default.h>
 156
 157#define CONFIG_CMD_ASKENV
 158#define CONFIG_CMD_DATE
 159#define CONFIG_CMD_DHCP
 160#define CONFIG_CMD_EEPROM
 161#define CONFIG_CMD_EXT2
 162#define CONFIG_CMD_I2C
 163#define CONFIG_CMD_IDE
 164#define CONFIG_CMD_MII
 165#define CONFIG_CMD_NFS
 166#define CONFIG_CMD_PING
 167
 168
 169/*
 170 * Miscellaneous configurable options
 171 */
 172#define CONFIG_SYS_LONGHELP                     /* undef to save memory         */
 173#define CONFIG_SYS_PROMPT               "=> "   /* Monitor Command Prompt       */
 174
 175#define CONFIG_CMDLINE_EDITING  1       /* add command line history     */
 176#define CONFIG_SYS_HUSH_PARSER          1       /* Use the HUSH parser          */
 177#ifdef  CONFIG_SYS_HUSH_PARSER
 178#define CONFIG_SYS_PROMPT_HUSH_PS2      "> "
 179#endif
 180
 181#if defined(CONFIG_CMD_KGDB)
 182#define CONFIG_SYS_CBSIZE               1024    /* Console I/O Buffer Size      */
 183#else
 184#define CONFIG_SYS_CBSIZE               256     /* Console I/O Buffer Size      */
 185#endif
 186#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16) /* Print Buffer Size */
 187#define CONFIG_SYS_MAXARGS              16      /* max number of command args   */
 188#define CONFIG_SYS_BARGSIZE     CONFIG_SYS_CBSIZE       /* Boot Argument Buffer Size    */
 189
 190#define CONFIG_SYS_MEMTEST_START        0x0100000       /* memtest works on     */
 191#define CONFIG_SYS_MEMTEST_END          0x0300000       /* 1 ... 3 MB in DRAM   */
 192#define CONFIG_SYS_ALT_MEMTEST                          /* alternate, more extensive
 193                                                   memory test.*/
 194
 195#define CONFIG_SYS_LOAD_ADDR            0x100000        /* default load address */
 196
 197#define CONFIG_SYS_HZ                   1000    /* decrementer freq: 1 ms ticks */
 198
 199#define CONFIG_SYS_BAUDRATE_TABLE       { 9600, 19200, 38400, 57600, 115200 }
 200
 201/*
 202 * Enable loopw command.
 203 */
 204#define CONFIG_LOOPW
 205
 206/*
 207 * Low Level Configuration Settings
 208 * (address mappings, register initial values, etc.)
 209 * You should know what you are doing if you make changes here.
 210 */
 211/*-----------------------------------------------------------------------
 212 * Internal Memory Mapped Register
 213 */
 214#define CONFIG_SYS_IMMR         0xFFF00000
 215
 216/*-----------------------------------------------------------------------
 217 * Definitions for initial stack pointer and data area (in DPRAM)
 218 */
 219#define CONFIG_SYS_INIT_RAM_ADDR        CONFIG_SYS_IMMR
 220#define CONFIG_SYS_INIT_RAM_END 0x2F00  /* End of used area in DPRAM    */
 221#define CONFIG_SYS_GBL_DATA_SIZE        64  /* size in bytes reserved for initial data */
 222#define CONFIG_SYS_GBL_DATA_OFFSET      (CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
 223#define CONFIG_SYS_INIT_SP_OFFSET       CONFIG_SYS_GBL_DATA_OFFSET
 224
 225/*-----------------------------------------------------------------------
 226 * Start addresses for the final memory configuration
 227 * (Set up by the startup code)
 228 * Please note that CONFIG_SYS_SDRAM_BASE _must_ start at 0
 229 */
 230#define CONFIG_SYS_SDRAM_BASE           0x00000000
 231#define CONFIG_SYS_FLASH_BASE           0x40000000
 232#define CONFIG_SYS_MONITOR_LEN          (256 << 10)     /* Reserve 256 kB for Monitor   */
 233#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
 234#define CONFIG_SYS_MALLOC_LEN           (256 << 10)     /* Reserve 128 kB for malloc()  */
 235
 236/*
 237 * For booting Linux, the board info and command line data
 238 * have to be in the first 8 MB of memory, since this is
 239 * the maximum mapped by the Linux kernel during initialization.
 240 */
 241#define CONFIG_SYS_BOOTMAPSZ            (8 << 20)       /* Initial Memory map for Linux */
 242
 243/*-----------------------------------------------------------------------
 244 * FLASH organization
 245 */
 246
 247/* use CFI flash driver */
 248#define CONFIG_SYS_FLASH_CFI            1       /* Flash is CFI conformant */
 249#define CONFIG_FLASH_CFI_DRIVER 1       /* Use the common driver */
 250#define CONFIG_SYS_FLASH_BANKS_LIST     { CONFIG_SYS_FLASH_BASE }
 251#define CONFIG_SYS_FLASH_EMPTY_INFO
 252#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE       1
 253#define CONFIG_SYS_MAX_FLASH_BANKS      1       /* max number of memory banks */
 254#define CONFIG_SYS_MAX_FLASH_SECT       256     /* max number of sectors on one chip */
 255
 256#define CONFIG_ENV_IS_IN_FLASH  1
 257#define CONFIG_ENV_OFFSET               0x40000 /*   Offset   of Environment Sector     */
 258#define CONFIG_ENV_SIZE         0x08000 /* Total Size of Environment            */
 259#define CONFIG_ENV_SECT_SIZE    0x40000 /* Total Size of Environment Sector     */
 260
 261/* Address and size of Redundant Environment Sector     */
 262#define CONFIG_ENV_OFFSET_REDUND        (CONFIG_ENV_OFFSET+CONFIG_ENV_SECT_SIZE)
 263#define CONFIG_ENV_SIZE_REDUND  (CONFIG_ENV_SIZE)
 264
 265/*-----------------------------------------------------------------------
 266 * Hardware Information Block
 267 */
 268#define CONFIG_SYS_HWINFO_OFFSET        0x0003FFC0      /* offset of HW Info block */
 269#define CONFIG_SYS_HWINFO_SIZE          0x00000040      /* size   of HW Info block */
 270#define CONFIG_SYS_HWINFO_MAGIC 0x54514D38      /* 'TQM8' */
 271
 272/*-----------------------------------------------------------------------
 273 * Cache Configuration
 274 */
 275#define CONFIG_SYS_CACHELINE_SIZE       16      /* For all MPC8xx CPUs                  */
 276#if defined(CONFIG_CMD_KGDB)
 277#define CONFIG_SYS_CACHELINE_SHIFT      4       /* log base 2 of the above value        */
 278#endif
 279
 280/*-----------------------------------------------------------------------
 281 * SYPCR - System Protection Control                            11-9
 282 * SYPCR can only be written once after reset!
 283 *-----------------------------------------------------------------------
 284 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
 285 */
 286#if defined(CONFIG_WATCHDOG)
 287#define CONFIG_SYS_SYPCR        (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
 288                         SYPCR_SWE  | SYPCR_SWRI| SYPCR_SWP)
 289#else
 290#define CONFIG_SYS_SYPCR        (SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
 291#endif
 292
 293/*-----------------------------------------------------------------------
 294 * SIUMCR - SIU Module Configuration                            11-6
 295 *-----------------------------------------------------------------------
 296 * PCMCIA config., multi-function pin tri-state
 297 */
 298#ifndef CONFIG_CAN_DRIVER
 299#define CONFIG_SYS_SIUMCR       (SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
 300#else   /* we must activate GPL5 in the SIUMCR for CAN */
 301#define CONFIG_SYS_SIUMCR       (SIUMCR_DBGC11 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
 302#endif  /* CONFIG_CAN_DRIVER */
 303
 304/*-----------------------------------------------------------------------
 305 * TBSCR - Time Base Status and Control                         11-26
 306 *-----------------------------------------------------------------------
 307 * Clear Reference Interrupt Status, Timebase freezing enabled
 308 */
 309#define CONFIG_SYS_TBSCR        (TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
 310
 311/*-----------------------------------------------------------------------
 312 * PISCR - Periodic Interrupt Status and Control                11-31
 313 *-----------------------------------------------------------------------
 314 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
 315 */
 316#define CONFIG_SYS_PISCR        (PISCR_PS | PISCR_PITF)
 317
 318/*-----------------------------------------------------------------------
 319 * SCCR - System Clock and reset Control Register               15-27
 320 *-----------------------------------------------------------------------
 321 * Set clock output, timebase and RTC source and divider,
 322 * power management and some other internal clocks
 323 */
 324#define SCCR_MASK       SCCR_EBDF11
 325#define CONFIG_SYS_SCCR (SCCR_COM00   | SCCR_DFSYNC00 | SCCR_DFBRG00  | \
 326                         SCCR_DFNL000 | SCCR_DFNH000  | SCCR_DFLCD000 | \
 327                         SCCR_DFALCD00)
 328
 329/*-----------------------------------------------------------------------
 330 * PCMCIA stuff
 331 *-----------------------------------------------------------------------
 332 *
 333 */
 334#define CONFIG_SYS_PCMCIA_MEM_ADDR      (0xE0000000)
 335#define CONFIG_SYS_PCMCIA_MEM_SIZE      ( 64 << 20 )
 336#define CONFIG_SYS_PCMCIA_DMA_ADDR      (0xE4000000)
 337#define CONFIG_SYS_PCMCIA_DMA_SIZE      ( 64 << 20 )
 338#define CONFIG_SYS_PCMCIA_ATTRB_ADDR    (0xE8000000)
 339#define CONFIG_SYS_PCMCIA_ATTRB_SIZE    ( 64 << 20 )
 340#define CONFIG_SYS_PCMCIA_IO_ADDR       (0xEC000000)
 341#define CONFIG_SYS_PCMCIA_IO_SIZE       ( 64 << 20 )
 342
 343/*-----------------------------------------------------------------------
 344 * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
 345 *-----------------------------------------------------------------------
 346 */
 347
 348#define CONFIG_IDE_8xx_PCCARD   1       /* Use IDE with PC Card Adapter */
 349
 350#undef  CONFIG_IDE_8xx_DIRECT           /* Direct IDE    not supported  */
 351#undef  CONFIG_IDE_LED                  /* LED   for ide not supported  */
 352#undef  CONFIG_IDE_RESET                /* reset for ide not supported  */
 353
 354#define CONFIG_SYS_IDE_MAXBUS           1       /* max. 1 IDE bus               */
 355#define CONFIG_SYS_IDE_MAXDEVICE        1       /* max. 1 drive per IDE bus     */
 356
 357#define CONFIG_SYS_ATA_IDE0_OFFSET      0x0000
 358
 359#define CONFIG_SYS_ATA_BASE_ADDR        CONFIG_SYS_PCMCIA_MEM_ADDR
 360
 361/* Offset for data I/O                  */
 362#define CONFIG_SYS_ATA_DATA_OFFSET      (CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
 363
 364/* Offset for normal register accesses  */
 365#define CONFIG_SYS_ATA_REG_OFFSET       (2 * CONFIG_SYS_PCMCIA_MEM_SIZE + 0x320)
 366
 367/* Offset for alternate registers       */
 368#define CONFIG_SYS_ATA_ALT_OFFSET       0x0100
 369
 370/*-----------------------------------------------------------------------
 371 *
 372 *-----------------------------------------------------------------------
 373 *
 374 */
 375#define CONFIG_SYS_DER 0
 376
 377/*
 378 * Init Memory Controller:
 379 *
 380 * BR0/1 and OR0/1 (FLASH)
 381 */
 382
 383#define FLASH_BASE0_PRELIM      0x40000000      /* FLASH bank #0        */
 384#define FLASH_BASE1_PRELIM      0x60000000      /* FLASH bank #0        */
 385
 386/* used to re-map FLASH both when starting from SRAM or FLASH:
 387 * restrict access enough to keep SRAM working (if any)
 388 * but not too much to meddle with FLASH accesses
 389 */
 390#define CONFIG_SYS_REMAP_OR_AM          0x80000000      /* OR addr mask */
 391#define CONFIG_SYS_PRELIM_OR_AM 0xE0000000      /* OR addr mask */
 392
 393/*
 394 * FLASH timing: Default value of OR0 after reset
 395 */
 396#define CONFIG_SYS_OR_TIMING_FLASH      (OR_CSNT_SAM | OR_ACS_MSK | OR_BI | \
 397                                 OR_SCY_6_CLK | OR_TRLX)
 398
 399#define CONFIG_SYS_OR0_REMAP    (CONFIG_SYS_REMAP_OR_AM  | CONFIG_SYS_OR_TIMING_FLASH)
 400#define CONFIG_SYS_OR0_PRELIM   (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_FLASH)
 401#define CONFIG_SYS_BR0_PRELIM   ((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V )
 402
 403#define CONFIG_SYS_OR1_REMAP    CONFIG_SYS_OR0_REMAP
 404#define CONFIG_SYS_OR1_PRELIM   CONFIG_SYS_OR0_PRELIM
 405#define CONFIG_SYS_BR1_PRELIM   ((FLASH_BASE1_PRELIM & BR_BA_MSK) | BR_V )
 406
 407/*
 408 * BR2/3 and OR2/3 (SDRAM)
 409 *
 410 */
 411#define SDRAM_BASE2_PRELIM      0x00000000      /* SDRAM bank #0        */
 412#define SDRAM_BASE3_PRELIM      0x20000000      /* SDRAM bank #1        */
 413#define SDRAM_MAX_SIZE          (256 << 20)     /* max 256 MB per bank  */
 414
 415/* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care)      */
 416#define CONFIG_SYS_OR_TIMING_SDRAM      0x00000A00
 417
 418#define CONFIG_SYS_OR2_PRELIM   (CONFIG_SYS_PRELIM_OR_AM | CONFIG_SYS_OR_TIMING_SDRAM )
 419#define CONFIG_SYS_BR2_PRELIM   ((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
 420
 421#ifndef CONFIG_CAN_DRIVER
 422#define CONFIG_SYS_OR3_PRELIM   CONFIG_SYS_OR2_PRELIM
 423#define CONFIG_SYS_BR3_PRELIM   ((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
 424#else   /* CAN uses CS3#, so we can have only one SDRAM bank anyway */
 425#define CONFIG_SYS_CAN_BASE             0xC0000000      /* CAN mapped at 0xC0000000     */
 426#define CONFIG_SYS_CAN_OR_AM            0xFFFF8000      /* 32 kB address mask           */
 427#define CONFIG_SYS_OR3_CAN              (CONFIG_SYS_CAN_OR_AM | OR_G5LA | OR_BI)
 428#define CONFIG_SYS_BR3_CAN              ((CONFIG_SYS_CAN_BASE & BR_BA_MSK) | \
 429                                        BR_PS_8 | BR_MS_UPMB | BR_V )
 430#endif  /* CONFIG_CAN_DRIVER */
 431
 432/*
 433 * 4096 Rows from SDRAM example configuration
 434 * 1000 factor s -> ms
 435 * 64   PTP (pre-divider from MPTPR) from SDRAM example configuration
 436 * 4    Number of refresh cycles per period
 437 * 64   Refresh cycle in ms per number of rows
 438 */
 439#define CONFIG_SYS_PTA_PER_CLK  ((4096 * 64 * 1000) / (4 * 64))
 440
 441/*
 442 * Periodic timer (MAMR[PTx]) for 4 * 7.8 us refresh (= 31.2 us per quad)
 443 *
 444 *                        CPUclock(MHz) * 31.2
 445 * CONFIG_SYS_MAMR_PTA = -----------------------------------     with DFBRG = 0
 446 *                2^(2*SCCR[DFBRG]) * MPTPR_PTP_DIV16
 447 *
 448 * CPU clock =  15 MHz:  CONFIG_SYS_MAMR_PTA =  29   ->  4 * 7.73 us
 449 * CPU clock =  50 MHz:  CONFIG_SYS_MAMR_PTA =  97   ->  4 * 7.76 us
 450 * CPU clock =  66 MHz:  CONFIG_SYS_MAMR_PTA = 128   ->  4 * 7.75 us
 451 * CPU clock = 133 MHz:  CONFIG_SYS_MAMR_PTA = 255   ->  4 * 7.67 us
 452 *
 453 * Value 97 is for 4 * 7.8 us at 50 MHz. So the refresh cycle requirement will
 454 * be met also in the default configuration, i.e. if environment variable
 455 * 'cpuclk' is not set.
 456 */
 457#define CONFIG_SYS_MAMR_PTA             128
 458
 459/*
 460 * Memory Periodic Timer Prescaler Register (MPTPR) values.
 461 */
 462/* 4 * 7.8 us refresh (= 31.2 us per quad) at 50 MHz and PTA = 97 */
 463#define CONFIG_SYS_MPTPR_2BK_4K MPTPR_PTP_DIV16
 464/* 4 * 3.9 us refresh (= 15.6 us per quad) at 50 MHz and PTA = 97 */
 465#define CONFIG_SYS_MPTPR_2BK_8K MPTPR_PTP_DIV8
 466
 467/*
 468 * MAMR settings for SDRAM
 469 */
 470
 471/* 8 column SDRAM */
 472#define CONFIG_SYS_MAMR_8COL    ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT)  | MAMR_PTAE       |   \
 473                         MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 |   \
 474                         MAMR_RLFA_1X    | MAMR_WLFA_1X    | MAMR_TLFA_4X)
 475/* 9 column SDRAM */
 476#define CONFIG_SYS_MAMR_9COL    ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT)  | MAMR_PTAE       |   \
 477                         MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 |   \
 478                         MAMR_RLFA_1X    | MAMR_WLFA_1X    | MAMR_TLFA_4X)
 479/* 10 column SDRAM */
 480#define CONFIG_SYS_MAMR_10COL   ((CONFIG_SYS_MAMR_PTA << MAMR_PTA_SHIFT)  | MAMR_PTAE       |   \
 481                         MAMR_AMA_TYPE_2 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A9  |   \
 482                         MAMR_RLFA_1X    | MAMR_WLFA_1X    | MAMR_TLFA_4X)
 483
 484/*
 485 * Internal Definitions
 486 *
 487 * Boot Flags
 488 */
 489#define BOOTFLAG_COLD   0x01            /* Normal Power-On: Boot from FLASH     */
 490#define BOOTFLAG_WARM   0x02            /* Software reboot                      */
 491
 492/*
 493 * Network configuration
 494 */
 495#define CONFIG_SCC2_ENET                /* enable ethernet on SCC2 */
 496#define CONFIG_FEC_ENET                 /* enable ethernet on FEC */
 497#define CONFIG_ETHER_ON_FEC1            /* ... for FEC1 */
 498#define CONFIG_ETHER_ON_FEC2            /* ... for FEC2 */
 499
 500#if defined(CONFIG_CMD_MII)
 501#define CONFIG_SYS_DISCOVER_PHY
 502#define CONFIG_MII_INIT 1
 503#endif
 504
 505#define CONFIG_NET_RETRY_COUNT 1        /* reduce max. timeout before
 506                                           switching to another netwok (if the
 507                                           tried network is unreachable) */
 508
 509#define CONFIG_ETHPRIME         "SCC ETHERNET"
 510
 511/* pass open firmware flat tree */
 512#define CONFIG_OF_LIBFDT        1
 513#define CONFIG_OF_BOARD_SETUP   1
 514#define CONFIG_HWCONFIG         1
 515
 516#endif  /* __CONFIG_H */
 517