• Nikita Kiryanov's avatar
    cmd: eeprom: add support for layout aware commands · aa9e6044
    Nikita Kiryanov authored
    Introduce the (optional) eeprom print and eeprom update commands.
    
    These commands are eeprom layout aware:
    * The eeprom print command prints the contents of the eeprom in a human
      readable way (eeprom layout fields, and data formatted to be fit for human
      consumption).
    * The eeprom update command allows user to update eeprom fields by specifying
      the field name, and providing the new data in a human readable format (same
      format as displayed by the eeprom print command).
    * Both commands can either auto detect the layout, or be told which layout to
      use.
    
    New CONFIG options:
    CONFIG_CMD_EEPROM_LAYOUT - enables commands.
    CONFIG_EEPROM_LAYOUT_HELP_STRING - tells user what layout names are supported
    
    Feature API:
    __weak int parse_layout_version(char *str)
    	- override to provide your own layout name parsing
    __weak void __eeprom_layout_assign(struct eeprom_layout *layout, int layout_version);
    	- override to setup the layout metadata based on the version
    __weak int eeprom_layout_detect(unsigned char *data)
    	- override to provide your own algorithm for detecting layout version
    eeprom_field.c
    	- contains various printing and updating functions for common types of
    	  eeprom fields. Can be used for defining custom layouts.
    
    Cc: Heiko Schocher <hs@denx.de>
    Cc: Marek Vasut <marex@denx.de>
    Cc: Simon Glass <sjg@chromium.org>
    Cc: Igor Grinberg <grinberg@compulab.co.il>
    Cc: Tom Rini <trini@konsulko.com>
    Signed-off-by: 's avatarNikita Kiryanov <nikita@compulab.co.il>
    aa9e6044
README 229 KB