doc/README.mpc8323erdb

   1 Freescale MPC8323ERDB Board
   2 -----------------------------------------
   3
   4 1.      Memory Map
   5         The memory map looks like this:
   6
   7         0x0000_0000     0x03ff_ffff     DDR              64M
   8         0x8000_0000     0x8fff_ffff     PCI MEM          256M
   9         0x9000_0000     0x9fff_ffff     PCI_MMIO         256M
  10         0xe000_0000     0xe00f_ffff     IMMR             1M
  11         0xd000_0000     0xd3ff_ffff     PCI IO           64M
  12         0xfe00_0000     0xfeff_ffff     NOR FLASH (CS0)  16M
  13
  14 2.      Compilation
  15
  16         Assuming you're using BASH (or similar) as your shell:
  17
  18         export CROSS_COMPILE=your-cross-compiler-prefix-
  19         make distclean
  20         make MPC8323ERDB_config
  21         make
  22
  23 3.      Downloading and Flashing Images
  24
  25 3.1     Reflash U-boot Image using U-boot
  26
  27         N.b, have an alternate means of programming
  28         the flash available if the new u-boot doesn't boot.
  29
  30         First try a:
  31
  32         tftpboot $loadaddr $uboot
  33
  34         to make sure that the TFTP load will succeed before
  35         an erase goes ahead and wipes out your current firmware.
  36         Then do a:
  37
  38         run tftpflash
  39
  40         which is a shorter version of the manual sequence:
  41
  42         tftp $loadaddr u-boot.bin
  43         protect off fe000000 +$filesize
  44         erase fe000000 +$filesize
  45         cp.b $loadaddr fe000000 $filesize
  46
  47         To keep your old u-boot's environment variables, do a:
  48
  49         saveenv
  50
  51         prior to resetting the board.
  52
  53 3.2     Downloading and Booting Linux Kernel
  54
  55         Ensure that all networking-related environment variables are set
  56         properly (including ipaddr, serverip, gatewayip (if needed),
  57         netmask, ethaddr, eth1addr, rootpath (if using NFS root),
  58         fdtfile, and bootfile).
  59
  60         Then, do one of the following, depending on whether you
  61         want an NFS root or a ramdisk root:
  62
  63         run nfsboot
  64
  65         or
  66
  67         run ramboot
  68
  69 4       Notes
  70
  71         The console baudrate for MPC8323ERDB is 115200bps.