doc/README.kmeter1

   1 Keymile kmeter1 Board
   2 -----------------------------------------
   3 1.      Alternative Boot EEPROM
   4
   5     Upon the kmeter1 startup the I2C_1 controller is used to fetch the boot
   6     configuration from a serial EEPROM. During the development and debugging
   7     phase it might be helpful to apply an alternative boot configuration in
   8     a simple way. Therefore it is an alternative boot eeprom on the PIGGY,
   9     which can be activated by setting the "ST" jumper on the PIGGY board.
  10
  11 2.      Memory Map
  12
  13     BaseAddr    PortSz  Size  Device
  14     ----------- ------  -----  ------
  15     0x0000_0000 64 bit  256MB  DDR
  16     0x8000_0000  8 bit  256KB  GPIO/PIGGY on CS1
  17     0xa000_0000  8 bit  256MB  PAXE on CS3
  18     0xe000_0000           2MB  Int Mem Reg Space
  19     0xf000_0000 16 bit  256MB  FLASH on CS0
  20
  21
  22     DDR-SDRAM:
  23     The current realization is made with four 16-bits memory devices.
  24     Mounting options have been foreseen for device architectures from
  25     4Mx16 to 512Mx16. The kmeter1 is equipped with four 32Mx16 devices
  26     thus resulting in a total capacity of 256MBytes.
  27
  28 3. Compilation
  29
  30         Assuming you're using BASH shell:
  31
  32                 export CROSS_COMPILE=your-cross-compile-prefix
  33                 cd u-boot
  34                 make distclean
  35                 make kmeter1_config
  36                 make
  37
  38 4. Downloading and Flashing Images
  39
  40 4.0 Download over serial line using Kermit:
  41
  42         loadb
  43         [Drop to kermit:
  44             ^\c
  45             send <u-boot-bin-image>
  46             c
  47         ]
  48
  49
  50     Or via tftp:
  51
  52         tftp 10000 u-boot.bin
  53     => run load
  54     Using UEC0 device
  55     TFTP from server 192.168.1.1; our IP address is 192.168.205.4
  56     Filename '/tftpboot/kmeter1/u-boot.bin'.
  57     Load address: 0x200000
  58     Loading: ##############
  59     done
  60     Bytes transferred = 204204 (31dac hex)
  61     =>
  62
  63 4.1 Reflash U-boot Image using U-boot
  64
  65     => run update
  66     ..... done
  67     Un-Protected 5 sectors
  68
  69     ..... done
  70     Erased 5 sectors
  71     Copy to Flash... done
  72     ..... done
  73     Protected 5 sectors
  74     Total of 204204 bytes were the same
  75     Saving Environment to Flash...
  76     . done
  77     Un-Protected 1 sectors
  78     . done
  79     Un-Protected 1 sectors
  80     Erasing Flash...
  81     . done
  82     Erased 1 sectors
  83     Writing to Flash... done
  84     . done
  85     Protected 1 sectors
  86     . done
  87     Protected 1 sectors
  88     =>
  89
  90 5. Notes
  91         1) The console baudrate for kmeter1 is 115200bps.