config.txt 2.0 KB

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  1. The /config node (Configuration Options)
  2. ----------------------------------------
  3. A number of run-time configuration options are provided in the /config node
  4. of the control device tree. You can access these using fdtdec_get_config_int(),
  5. fdtdec_get_config_bool() and fdtdec_get_config_string().
  6. Available options are:
  7. silent-console
  8. If present and non-zero, the console is silenced by default on boot.
  9. no-keyboard
  10. Tells U-Boot not to expect an attached keyboard with a VGA console
  11. u-boot,efi-partition-entries-offset
  12. If present, this provides an offset (in bytes, from the start of a
  13. device) that should be skipped over before the partition entries.
  14. This is used by the EFI/GPT partition implementation when a device
  15. is formatted.
  16. This setting will override any values configured via Kconfig.
  17. u-boot,mmc-env-partition
  18. if present, the environment shall be placed at the last
  19. CONFIG_ENV_SIZE blocks of the partition on the
  20. CONFIG_SYS_MMC_ENV_DEV.
  21. if u-boot,mmc-env-offset* is present, this setting will take
  22. precedence. In that case, only if the partition is not found,
  23. mmc-env-offset* will be tried.
  24. u-boot,mmc-env-offset
  25. u-boot,mmc-env-offset-redundant
  26. If present, the values of the 'u-boot,mmc-env-offset' and/or
  27. of the u-boot,mmc-env-offset-redundant' properties overrides
  28. CONFIG_ENV_OFFSET and CONFIG_ENV_OFFSET_REDUND, respectively,
  29. for SD/MMC devices.
  30. Values are interpreted as the offset from the start of the
  31. device, specified in bytes. It is assumed that the setting
  32. will point at the beginning of a LBA and values that are not
  33. LBA-aligned will be rounded up to the next LBA address.
  34. u-boot,spl-payload-offset
  35. If present (and SPL is controlled by the device-tree), this allows
  36. to override the CONFIG_SYS_SPI_U_BOOT_OFFS setting using a value
  37. from the device-tree.
  38. sysreset-gpio
  39. If present (and supported by the specific board), indicates a
  40. GPIO that can be set to trigger a system reset. It is assumed
  41. that such a system reset will effect a complete platform reset,
  42. being roughly equivalent to a power-on reset.