doc/README.simpc8313

   1 Sheldon Instruments SIMPC8313 Board
   2 -----------------------------------------
   3
   4 1.      Board Switches and Jumpers
   5
   6         S2 is used to set CFG_RESET_SOURCE.
   7
   8         To boot the image in Large page NAND flash, use these DIP
   9         switch settings for S2:
  10
  11         +----------+ ON
  12         | * * **** |
  13         |  * *     |
  14         +----------+
  15           12345678
  16
  17         To boot the image in Small page NAND flash, use these DIP
  18         switch settings for S2:
  19
  20         +----------+ ON
  21         | *** **** |
  22         |    *     |
  23         +----------+
  24           12345678
  25         (where the '*' indicates the position of the tab of the switch.)
  26
  27 2.      Memory Map
  28         The memory map looks like this:
  29
  30         0x0000_0000     0x1fff_ffff     DDR                     512M
  31         0x8000_0000     0x8fff_ffff     PCI MEM                 256M
  32         0x9000_0000     0x9fff_ffff     PCI_MMIO                256M
  33         0xe000_0000     0xe00f_ffff     IMMR                    1M
  34         0xe200_0000     0xe20f_ffff     PCI IO                  16M
  35         0xe280_0000     0xe280_7fff     NAND FLASH (CS0)        32K
  36         or
  37         0xe280_0000     0xe281_ffff     NAND FLASH (CS0)        128K
  38         0xff00_0000     0xff00_7fff     FPGA (CS1)              1M
  39
  40 3.      Compilation
  41
  42         Assuming you're using BASH (or similar) as your shell:
  43
  44         export CROSS_COMPILE=your-cross-compiler-prefix-
  45         make distclean
  46         make SIMPC8313_LP_config
  47         (or make SIMPC8313_SP_config, depending on the page size
  48         of your NAND flash)
  49         make
  50
  51 4.      Downloading and Flashing Images
  52
  53 4.1     Reflash U-boot Image using U-boot
  54
  55         =>run update_uboot
  56
  57         You may want to try
  58         =>tftp $loadaddr $uboot
  59         first, to make sure that the TFTP load will succeed before it
  60         goes ahead and wipes out your current firmware.  And of course,
  61         if the new u-boot doesn't boot, you can plug the board into
  62         your PCI slot and with the supplied driver and sample app
  63         you can reburn a working u-boot.
  64
  65 4.2     Downloading and Booting Linux Kernel
  66
  67         Ensure that all networking-related environment variables are set
  68         properly (including ipaddr, serverip, gatewayip (if needed),
  69         netmask, ethaddr, eth1addr, fdtfile, and bootfile).
  70
  71         =>tftp $loadaddr uImage
  72         =>nand write $loadaddr kernel $filesize
  73         =>tftp $loadaddr $fdtfile
  74         =>nand write $loadaddr 7e0000 1800
  75
  76         =>boot
  77
  78 5       Notes
  79
  80         The console baudrate for SIMPC8313 is 115200bps.