include/configs/ML2.h

   1 /*
   2  * ML2.h: ML2 specific config options
   3  *
   4  * Copyright 2002 Mind NV
   5  *
   6  * http://www.mind.be/
   7  *
   8  * Author : Peter De Schrijver (p2@mind.be)
   9  *
  10  * Derived from : other configuration header files in this tree
  11  *
  12  * This software may be used and distributed according to the terms of
  13  * the GNU General Public License (GPL) version 2, incorporated herein by
  14  * reference. Drivers based on or derived from this code fall under the GPL
  15  * and must retain the authorship, copyright and this license notice. This
  16  * file is not a complete program and may only be used when the entire
  17  * program is licensed under the GPL.
  18  *
  19  */
  20
  21 #ifndef __CONFIG_H
  22 #define __CONFIG_H
  23
  24 /*
  25  * High Level Configuration Options
  26  * (easy to change)
  27  */
  28
  29 #define CONFIG_405              1       /* This is a PPC405 CPU         */
  30 #define CONFIG_4xx              1       /* ...member of PPC4xx family   */
  31 #define CONFIG_ML2      1       /* ...on a ML2 board    */
  32
  33
  34 #define CFG_ENV_IS_IN_FLASH     1
  35
  36 #ifdef CFG_ENV_IS_IN_NVRAM
  37 #undef CFG_ENV_IS_IN_FLASH
  38 #else
  39 #ifdef CFG_ENV_IS_IN_FLASH
  40 #undef CFG_ENV_IS_IN_NVRAM
  41 #endif
  42 #endif
  43
  44 #define CONFIG_BAUDRATE         9600
  45 #define CONFIG_BOOTDELAY        3       /* autoboot after 3 seconds     */
  46
  47 #if 1
  48 #define CONFIG_BOOTCOMMAND      "bootm" /* autoboot command     */
  49 #else
  50 #define CONFIG_BOOTCOMMAND      "bootp" /* autoboot command             */
  51 #endif
  52
  53 #define CONFIG_PREBOOT          "fsload 0x00100000 /boot/image"
  54
  55 /* Size (bytes) of interrupt driven serial port buffer.
  56  * Set to 0 to use polling instead of interrupts.
  57  * Setting to 0 will also disable RTS/CTS handshaking.
  58  */
  59 #if 0
  60 #define CONFIG_SERIAL_SOFTWARE_FIFO 4000
  61 #else
  62 #undef  CONFIG_SERIAL_SOFTWARE_FIFO
  63 #endif
  64
  65 #if 0
  66 #define CONFIG_BOOTARGS         "root=/dev/nfs "                        \
  67     "ip=192.168.2.176:192.168.2.190:192.168.2.79:255.255.255.0 "        \
  68     "nfsroot=192.168.2.190:/home/stefan/cpci405/target_ftest4"
  69 #else
  70 #define CONFIG_BOOTARGS         "root=/dev/mtdblock2 "                  \
  71    "console=ttyS0 console=tty"
  72
  73 #endif
  74
  75 #define CONFIG_LOADS_ECHO       1       /* echo on for serial download  */
  76 #define CFG_LOADS_BAUD_CHANGE   1       /* allow baudrate change        */
  77
  78
  79 #define CONFIG_COMMANDS        ((CONFIG_CMD_DFL & \
  80                                      ~( CFG_CMD_NET | \
  81                                         CFG_CMD_RTC | \
  82                                         CFG_CMD_PCI | \
  83                                         CFG_CMD_I2C   \
  84                                       ) ) | \
  85                                 CFG_CMD_IRQ     | \
  86                                 CFG_CMD_KGDB    | \
  87                                 CFG_CMD_BEDBUG  | \
  88                                 CFG_CMD_ELF     | \
  89                                 CFG_CMD_JFFS2     )
  90
  91 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
  92 #include <cmd_confdefs.h>
  93
  94 #undef CONFIG_WATCHDOG                  /* watchdog disabled            */
  95
  96 #define CONFIG_SYS_CLK_FREQ 50000000
  97
  98 #define CONFIG_SPD_EEPROM      1       /* use SPD EEPROM for setup    */
  99
 100 /*
 101  * Miscellaneous configurable options
 102  */
 103 #define CFG_LONGHELP                    /* undef to save memory         */
 104 #define CFG_PROMPT      "=> "           /* Monitor Command Prompt       */
 105 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
 106 #define CFG_CBSIZE      1024            /* Console I/O Buffer Size      */
 107 #else
 108 #define CFG_CBSIZE      256             /* Console I/O Buffer Size      */
 109 #endif
 110 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
 111 #define CFG_MAXARGS     16              /* max number of command args   */
 112 #define CFG_BARGSIZE    CFG_CBSIZE      /* Boot Argument Buffer Size    */
 113
 114 #define CFG_MEMTEST_START       0x0400000       /* memtest works on     */
 115 #define CFG_MEMTEST_END         0x0C00000       /* 4 ... 12 MB in DRAM  */
 116
 117 /*
 118  * If CFG_EXT_SERIAL_CLOCK, then the UART divisor is 1.
 119  * If CFG_405_UART_ERRATA_59, then UART divisor is 31.
 120  * Otherwise, UART divisor is determined by CPU Clock and CFG_BASE_BAUD value.
 121  * The Linux BASE_BAUD define should match this configuration.
 122  *    baseBaud = cpuClock/(uartDivisor*16)
 123  * If CFG_405_UART_ERRATA_59 and 200MHz CPU clock,
 124  * set Linux BASE_BAUD to 403200.
 125  */
 126 #undef  CFG_EXT_SERIAL_CLOCK           /* external serial clock */
 127 #undef  CFG_405_UART_ERRATA_59         /* 405GP/CR Rev. D silicon */
 128
 129 #define CFG_BASE_BAUD       (3125000*16)
 130 #define CFG_NS16550_CLK CFG_BASE_BAUD
 131 #define CFG_DUART_CHAN          0
 132 #define CFG_NS16550_COM1        0xa0001003
 133 #define CFG_NS16550_COM2        0xa0011003
 134 #define CFG_NS16550_REG_SIZE -4
 135 #define CFG_NS16550 1
 136 #define CFG_INIT_CHAN1   1
 137 #define CFG_INIT_CHAN2   1
 138
 139 /* The following table includes the supported baudrates */
 140 #define CFG_BAUDRATE_TABLE  \
 141     {300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400}
 142
 143 #define CFG_LOAD_ADDR           0x100000        /* default load address */
 144 #define CFG_EXTBDINFO           1       /* To use extended board_into (bd_t) */
 145
 146 #define CFG_HZ          1000            /* decrementer freq: 1 ms ticks */
 147
 148
 149 /*-----------------------------------------------------------------------
 150  * Start addresses for the final memory configuration
 151  * (Set up by the startup code)
 152  * Please note that CFG_SDRAM_BASE _must_ start at 0
 153  */
 154 #define CFG_SDRAM_BASE          0x00000000
 155 #define CFG_FLASH_BASE          0x18000000
 156 #define CFG_MONITOR_BASE        CFG_FLASH_BASE
 157 #define CFG_MONITOR_LEN         (192 * 1024)    /* Reserve 196 kB for Monitor   */
 158 #define CFG_MALLOC_LEN          (128 * 1024)    /* Reserve 128 kB for malloc()  */
 159
 160 /*
 161  * For booting Linux, the board info and command line data
 162  * have to be in the first 8 MB of memory, since this is
 163  * the maximum mapped by the Linux kernel during initialization.
 164  */
 165 #define CFG_BOOTMAPSZ           (8 << 20)       /* Initial Memory map for Linux */
 166 /*-----------------------------------------------------------------------
 167  * FLASH organization
 168  */
 169 #define CFG_MAX_FLASH_BANKS     1       /* max number of memory banks           */
 170 #define CFG_MAX_FLASH_SECT      256     /* max number of sectors on one chip    */
 171
 172 #define CFG_FLASH_ERASE_TOUT    120000  /* Timeout for Flash Erase (in ms)      */
 173 #define CFG_FLASH_WRITE_TOUT    500     /* Timeout for Flash Write (in ms)      */
 174
 175 /* BEG ENVIRONNEMENT FLASH */
 176 #ifdef CFG_ENV_IS_IN_FLASH
 177 #define CFG_ENV_OFFSET          0x00050000 /* Offset of Environment Sector  */
 178 #define CFG_ENV_SIZE            0x10000 /* Total Size of Environment Sector     */
 179 #define CFG_ENV_SECT_SIZE       0x10000 /* see README - env sector total size   */
 180 #endif
 181 /* END ENVIRONNEMENT FLASH */
 182 /*-----------------------------------------------------------------------
 183  * NVRAM organization
 184  */
 185 #define CFG_NVRAM_BASE_ADDR     0xf0000000      /* NVRAM base address   */
 186 #define CFG_NVRAM_SIZE          0x1ff8          /* NVRAM size   */
 187
 188 #ifdef CFG_ENV_IS_IN_NVRAM
 189 #define CFG_ENV_SIZE            0x1000          /* Size of Environment vars     */
 190 #define CFG_ENV_ADDR            \
 191         (CFG_NVRAM_BASE_ADDR+CFG_NVRAM_SIZE-CFG_ENV_SIZE)       /* Env  */
 192 #endif
 193 /*-----------------------------------------------------------------------
 194  * Cache Configuration
 195  */
 196 #define CFG_DCACHE_SIZE         8192    /* For IBM 405 CPUs                     */
 197 #define CFG_CACHELINE_SIZE      32      /* ...                  */
 198 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
 199 #define CFG_CACHELINE_SHIFT     5       /* log base 2 of the above value        */
 200 #endif
 201
 202 /*
 203  * Init Memory Controller:
 204  *
 205  * BR0/1 and OR0/1 (FLASH)
 206  */
 207
 208 #define FLASH_BASE0_PRELIM      CFG_FLASH_BASE  /* FLASH bank #0        */
 209 #define FLASH_BASE1_PRELIM      0               /* FLASH bank #1        */
 210
 211
 212 /* Configuration Port location */
 213 #define CONFIG_PORT_ADDR        0xF0000500
 214
 215 /*-----------------------------------------------------------------------
 216  * Definitions for initial stack pointer and data area (in DPRAM)
 217  */
 218
 219 #define CFG_INIT_RAM_ADDR       0x800000  /* inside of SDRAM                     */
 220 #define CFG_INIT_RAM_END        0x2000  /* End of used area in RAM             */
 221 #define CFG_GBL_DATA_SIZE      128  /* size in bytes reserved for initial data */
 222 #define CFG_GBL_DATA_OFFSET    (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
 223 #define CFG_INIT_SP_OFFSET      CFG_GBL_DATA_OFFSET
 224
 225 /*-----------------------------------------------------------------------
 226  * Definitions for Serial Presence Detect EEPROM address
 227  * (to get SDRAM settings)
 228  */
 229 #define SPD_EEPROM_ADDRESS      0x50
 230
 231 /*
 232  * Internal Definitions
 233  *
 234  * Boot Flags
 235  */
 236 #define BOOTFLAG_COLD   0x01            /* Normal Power-On: Boot from FLASH     */
 237 #define BOOTFLAG_WARM   0x02            /* Software reboot                      */
 238
 239 #if (CONFIG_COMMANDS & CFG_CMD_KGDB)
 240 #define CONFIG_KGDB_BAUDRATE    230400  /* speed to run kgdb serial port */
 241 #define CONFIG_KGDB_SER_INDEX   2       /* which serial port to use */
 242 #endif
 243
 244 /* JFFS2 stuff */
 245
 246 #define CFG_JFFS2_FIRST_BANK 0
 247 #define CFG_JFFS2_NUM_BANKS 1
 248 #define CFG_JFFS2_FIRST_SECTOR 1
 249 #endif  /* __CONFIG_H */