doc/README.mpc8313erdb

   1 Freescale MPC8313ERDB Board
   2 -----------------------------------------
   3
   4 1.      Board Switches and Jumpers
   5
   6         S3 is used to set CONFIG_SYS_RESET_SOURCE.
   7
   8         To boot the image at 0xFE000000 in NOR flash, use these DIP
   9         switch settings for S3 S4:
  10
  11         +------+        +------+
  12         |      |        | **** |
  13         | **** |        |      |
  14         +------+ ON     +------+ ON
  15           4321            4321
  16         (where the '*' indicates the position of the tab of the switch.)
  17
  18         To boot the image at the beginning of NAND flash, use these
  19         DIP switch settings for S3 S4:
  20
  21         +------+        +------+
  22         | *    |        |  *** |
  23         |  *** |        | *    |
  24         +------+ ON     +------+ ON
  25           4321            4321
  26         (where the '*' indicates the position of the tab of the switch.)
  27
  28         When booting from NAND, use u-boot-nand.bin, not u-boot.bin.
  29
  30 2.      Memory Map
  31         The memory map looks like this:
  32
  33         0x0000_0000     0x07ff_ffff     DDR              128M
  34         0x8000_0000     0x8fff_ffff     PCI MEM          256M
  35         0x9000_0000     0x9fff_ffff     PCI_MMIO         256M
  36         0xe000_0000     0xe00f_ffff     IMMR             1M
  37         0xe200_0000     0xe20f_ffff     PCI IO           16M
  38         0xe280_0000     0xe280_7fff     NAND FLASH (CS1) 32K
  39         0xf000_0000     0xf001_ffff     VSC7385 (CS2)    128K
  40         0xfa00_0000     0xfa00_7fff     Board Status/    32K
  41                                         LED Control (CS3)
  42         0xfe00_0000     0xfe7f_ffff     NOR FLASH (CS0)  8M
  43
  44         When booting from NAND, NAND flash is CS0 and NOR flash
  45         is CS1.
  46
  47 3.      Definitions
  48
  49 3.1     Explanation of NEW definitions in:
  50
  51         include/configs/MPC8313ERDB.h
  52
  53         CONFIG_MPC83xx          MPC83xx family
  54         CONFIG_MPC831x          MPC831x specific
  55         CONFIG_MPC8313ERDB      MPC8313ERDB board specific
  56
  57 4.      Compilation
  58
  59         Assuming you're using BASH (or similar) as your shell:
  60
  61         export CROSS_COMPILE=your-cross-compiler-prefix-
  62         make distclean
  63         make MPC8313ERDB_XXX_config
  64         (where XXX is:
  65            33 - 33 MHz oscillator, boot from NOR flash
  66            66 - 66 MHz oscillator, boot from NOR flash
  67            NAND_33 - 33 MHz oscillator, boot from NAND flash
  68            NAND_66 - 66 MHz oscillator, boot from NAND flash)
  69         make
  70
  71 5.      Downloading and Flashing Images
  72
  73 5.1     Reflash U-boot Image using U-boot
  74
  75         NOR flash:
  76
  77         =>run tftpflash
  78
  79         You may want to try
  80         =>tftpboot $loadaddr $uboot
  81         first, to make sure that the TFTP load will succeed before it
  82         goes ahead and wipes out your current firmware.  And of course,
  83         have an alternate means of programming the flash available
  84         if the new u-boot doesn't boot.
  85
  86         NAND flash:
  87
  88         =>tftpboot $loadaddr <filename>
  89         =>nand erase 0 0x80000
  90         =>nand write $loadaddr 0 0x80000
  91
  92         ...where 0x80000 is the filesize rounded up to
  93         the next 0x20000 increment.
  94
  95 5.2     Downloading and Booting Linux Kernel
  96
  97         Ensure that all networking-related environment variables are set
  98         properly (including ipaddr, serverip, gatewayip (if needed),
  99         netmask, ethaddr, eth1addr, rootpath (if using NFS root),
 100         fdtfile, and bootfile).
 101
 102         Then, do one of the following, depending on whether you
 103         want an NFS root or a ramdisk root:
 104
 105         =>run nfsboot
 106         or
 107         =>run ramboot
 108
 109 6       Notes
 110
 111         The console baudrate for MPC8313ERDB is 115200bps.