doc/README.switch_config

   1 On the enbw_cmc board is a KSZ8864RMN switch which needs
   2 configured through spi before working. This is done on
   3 startup from u-boot through a config file stored at an
   4 address specified in the "hwconfig" environment variable,
   5 subcommand "config".
   6
   7 For example on the enbw_cmc board:
   8
   9 hwconfig=switch:lan=on,pwl=off,config=0x60160000
  10
  11 The file has the following structure:
  12
  13 - a comment starts with a '#' or a ';' and ends with a newline
  14 - The switch needs for its config a reg/value pair, so we
  15   have two columns in the file:
  16     reg  : contains the register address
  17     value: contains a 8 bit register value
  18   This 2 columns are seperated through space or tab.
  19
  20 example (minimal configuration on the enbw_cmc board):
  21
  22 ;reg    value   comment
  23 ;-----------------------------------------
  24 0x01    0x00
  25 0x01    0x01    ; Start Switch with this configuration