include/configs/SMN42.h

   1 /*
   2  * (C) Copyright 2007
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * Configuation settings for the SMN42 board from Siemens.
   6  *
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #ifndef __CONFIG_H
  27 #define __CONFIG_H
  28
  29 /*
  30  * If we are developing, we might want to start u-boot from ram
  31  * so we MUST NOT initialize critical regs like mem-timing ...
  32  */
  33 #undef CONFIG_INIT_CRITICAL             /* undef for developing */
  34
  35 #undef CONFIG_SKIP_LOWLEVEL_INIT
  36 #undef CONFIG_SKIP_RELOCATE_UBOOT
  37
  38 /*
  39  * High Level Configuration Options
  40  * (easy to change)
  41  */
  42 #define CONFIG_ARM7             1       /* This is a ARM7 CPU   */
  43 #define CONFIG_ARM_THUMB        1       /* this is an ARM720TDMI */
  44 #define CONFIG_LPC2292
  45 #undef  CONFIG_ARM7_REVD                /* disable ARM720 REV.D Workarounds */
  46
  47 #undef CONFIG_USE_IRQ                   /* don't need them anymore */
  48
  49 /*
  50  * Size of malloc() pool
  51  */
  52 #define CFG_MALLOC_LEN          (CFG_ENV_SIZE + 128*1024)
  53 #define CFG_GBL_DATA_SIZE       128     /* size in bytes reserved for initial data */
  54
  55 /*
  56  * Hardware drivers
  57  */
  58
  59 /*
  60  * select serial console configuration
  61  */
  62 #define CONFIG_SERIAL1          1       /* we use Serial line 1 */
  63
  64 /* allow to overwrite serial and ethaddr */
  65 #define CONFIG_ENV_OVERWRITE
  66
  67 #define CONFIG_BAUDRATE         115200
  68
  69 #define CONFIG_BOOTP_MASK       (CONFIG_BOOTP_DEFAULT|CONFIG_BOOTP_BOOTFILESIZE)
  70
  71 /* enable I2C and select the hardware/software driver */
  72 #undef  CONFIG_HARD_I2C                 /* I2C with hardware support    */
  73 #define CONFIG_SOFT_I2C         1       /* I2C bit-banged               */
  74 /* this would be 0xAE if E0, E1 and E2 were pulled high */
  75 #define CFG_I2C_SLAVE           0xA0
  76 #define CFG_I2C_EEPROM_ADDR     (0xA0 >> 1)
  77 #define CFG_I2C_EEPROM_ADDR_LEN 2 /* 16 bit address */
  78 #define CFG_EEPROM_PAGE_WRITE_BITS 6 /* 64 bytes per write */
  79 #define CFG_EEPROM_PAGE_WRITE_DELAY_MS 20
  80 /* not used but required by devices.c */
  81 #define CFG_I2C_SPEED 10000
  82
  83 #ifdef CONFIG_SOFT_I2C
  84 /*
  85  * Software (bit-bang) I2C driver configuration
  86  */
  87 #define SCL             0x00000004              /* P0.2 */
  88 #define SDA             0x00000008              /* P0.3 */
  89
  90 #define I2C_READ        ((GET32(IO0PIN) & SDA) ? 1 : 0)
  91 #define I2C_SDA(x)      { if (x) PUT32(IO0SET, SDA); else PUT32(IO0CLR, SDA); }
  92 #define I2C_SCL(x)      { if (x) PUT32(IO0SET, SCL); else PUT32(IO0CLR, SCL); }
  93 #define I2C_DELAY       { udelay(100); }
  94 #define I2C_ACTIVE      { unsigned int i2ctmp; \
  95                                           i2ctmp = GET32(IO0DIR); \
  96                                           i2ctmp |= SDA; \
  97                                           PUT32(IO0DIR, i2ctmp); }
  98 #define I2C_TRISTATE    { unsigned int i2ctmp; \
  99                                               i2ctmp = GET32(IO0DIR); \
 100                                               i2ctmp &= ~SDA; \
 101                                                   PUT32(IO0DIR, i2ctmp); }
 102 #endif /* CONFIG_SOFT_I2C */
 103
 104 /*
 105  * Supported commands
 106  */
 107 #define CONFIG_COMMANDS        (CONFIG_CMD_DFL  | \
 108                                 CFG_CMD_DHCP    | \
 109                                 CFG_CMD_FAT             | \
 110                                 CFG_CMD_MMC             | \
 111                                 CFG_CMD_NET             | \
 112                                 CFG_CMD_EEPROM  | \
 113                                 CFG_CMD_PING)
 114
 115 #define CONFIG_DOS_PARTITION
 116
 117 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
 118 #include <cmd_confdefs.h>
 119
 120 #define CONFIG_BOOTDELAY        5
 121
 122 /*
 123  * Miscellaneous configurable options
 124  */
 125 #define CFG_LONGHELP                            /* undef to save memory         */
 126 #define CFG_PROMPT              "SMN42 # " /* Monitor Command Prompt    */
 127 #define CFG_CBSIZE              256             /* Console I/O Buffer Size      */
 128 #define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
 129 #define CFG_MAXARGS             16              /* max number of command args   */
 130 #define CFG_BARGSIZE            CFG_CBSIZE      /* Boot Argument Buffer Size    */
 131
 132 #define CFG_MEMTEST_START       0x81800000      /* memtest works on     */
 133 #define CFG_MEMTEST_END         0x83000000      /* 24 MB in SRAM        */
 134
 135 #undef  CFG_CLKS_IN_HZ          /* everything, incl board info, in Hz */
 136
 137 #define CFG_LOAD_ADDR           0x81000000      /* default load address */
 138                                                 /* for uClinux img is here*/
 139
 140 #define CFG_SYS_CLK_FREQ        58982400        /* Hz */
 141 #define CFG_HZ                  2048            /* decrementer freq in Hz */
 142
 143                                                 /* valid baudrates */
 144 #define CFG_BAUDRATE_TABLE      { 9600, 19200, 38400, 57600, 115200 }
 145
 146 /*-----------------------------------------------------------------------
 147  * Stack sizes
 148  *
 149  * The stack sizes are set up in start.S using the settings below
 150  */
 151 #define CONFIG_STACKSIZE        (128*1024)      /* regular stack */
 152 #ifdef CONFIG_USE_IRQ
 153 #define CONFIG_STACKSIZE_IRQ    (4*1024)        /* IRQ stack */
 154 #define CONFIG_STACKSIZE_FIQ    (4*1024)        /* FIQ stack */
 155 #endif
 156
 157 /*-----------------------------------------------------------------------
 158  * Physical Memory Map
 159  */
 160 #define CONFIG_NR_DRAM_BANKS    1          /* we have 1 bank of SRAM */
 161 #define PHYS_SDRAM_1            0x81000000 /* SRAM Bank #1 */
 162 #define PHYS_SDRAM_1_SIZE       0x02000000 /* 32 MB SRAM */
 163
 164 /* This is the external flash */
 165 #define PHYS_FLASH_1            0x80000000 /* Flash Bank #1 */
 166 #define PHYS_FLASH_SIZE         0x01000000 /* 16 MB */
 167
 168 /*-----------------------------------------------------------------------
 169  * FLASH and environment organization
 170  */
 171
 172 /*
 173  * The first entry in CFG_FLASH_BANKS_LIST is a dummy, but it must be present.
 174  */
 175 #define CFG_FLASH_BANKS_LIST    { 0, PHYS_FLASH_1 }
 176 #define CFG_FLASH_ADDR0                 0x555
 177 #define CFG_FLASH_ADDR1                 0x2AA
 178 #define CFG_FLASH_ERASE_TOUT    16384   /* Timeout for Flash Erase (in ms) */
 179 #define CFG_FLASH_WRITE_TOUT    5       /* Timeout for Flash Write (in ms) */
 180
 181 #define CFG_MAX_FLASH_SECT      128  /* max number of sectors on one chip    */
 182
 183 #define CFG_MAX_FLASH_BANKS     2       /* max number of memory banks           */
 184
 185 #define CFG_ENV_IS_IN_FLASH     1
 186 /* The Environment Sector is in the CPU-internal flash */
 187 #define CFG_FLASH_BASE          0
 188 #define CFG_ENV_OFFSET          0x3C000
 189 #define CFG_ENV_ADDR            (CFG_FLASH_BASE + CFG_ENV_OFFSET)
 190 #define CFG_ENV_SIZE            0x2000 /* Total Size of Environment Sector      */
 191
 192 #define CONFIG_CMDLINE_TAG
 193 #define CONFIG_SETUP_MEMORY_TAGS
 194 #define CONFIG_INITRD_TAG
 195 #define CONFIG_MMC                      1
 196 /* we use this ethernet chip */
 197 #define CONFIG_ENC28J60
 198
 199 #endif  /* __CONFIG_H */