board/congatec/cgtqmx6eval/README

   1 U-Boot for the Congatec QMX6 boards
   2
   3 This file contains information for the port of U-Boot to the Congatec
   4 QMX6 boards.
   5
   6 1. Building U-Boot
   7 ------------------
   8
   9 - Build U-Boot for Congatec QMX6 boards:
  10
  11 $ make mrproper
  12 $ make cgtqmx6eval_defconfig
  13 $ make
  14
  15 This will generate the following binaries:
  16
  17 - SPL
  18 - u-boot.img
  19
  20 2. Flashing U-Boot in the SPI NOR
  21 ---------------------------------
  22
  23 Copy SPL and u-boot.img to the exported TFTP directory of the
  24 host PC (/tftpboot , for example).
  25
  26 => sf probe
  27
  28 => setenv serverip <server_ip_address>
  29
  30 => setenv ipaddr <board_ip_address>
  31
  32 => tftp 0x12000000 SPL
  33
  34 => sf erase 0x0 0x10000
  35
  36 => sf write 0x12000000 0x400 0x10000
  37
  38 => tftp 0x12000000 u-boot.img
  39
  40 => sf erase 0x10000 0x70000
  41
  42 => sf write 0x12000000 0x10000 0x70000
  43
  44 Reboot the board and the new U-Boot should come up.
  45
  46 3. Booting from the SD card
  47 ---------------------------
  48
  49 - Flash the SPL image into the SD card:
  50
  51 sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync
  52
  53 - Flash the u-boot.img image into the SD card:
  54
  55 sudo dd if=u-boot.img of=/dev/mmcblk0 bs=1k seek=69; sync
  56
  57 - Insert the SD card into the big slot.
  58
  59 The boot medium of Congatec QMX6 boards is the SPI NOR flash, so boot
  60 the board from SPI first.
  61
  62 It is also possible to boot from the SD card slot by using the 'bmode'
  63 command:
  64
  65 => bmode esdhc4
  66
  67 And then the U-Boot from the big slot will boot.
  68
  69 Note: If the "bmode" command is not available from your pre-installed U-Boot,
  70 these instruction will produce the same effect:
  71
  72 => mw.l 0x20d8040 0x3850
  73 => mw.l 0x020d8044 0x10000000
  74 => reset