u-boot/doc/device-tree-bindings/config.txt
Philipp Tomsich de59d10cd0 doc: document u-boot, mmc-env-offset and u-boot, mmc-env-offset-redund
Adding documentation on the new config properties:
       'u-boot,mmc-env-offset' - overrides CONFIG_ENV_OFFSET
       'u-boot,mmc-env-offset-redundant'
                               - overrides CONFIG_ENV_OFFSET_REDUND

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2017-05-29 17:28:52 +09:00

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The /config node (Configuration Options)
----------------------------------------
A number of run-time configuration options are provided in the /config node
of the control device tree. You can access these using fdtdec_get_config_int(),
fdtdec_get_config_bool() and fdtdec_get_config_string().
Available options are:
silent-console
If present and non-zero, the console is silenced by default on boot.
no-keyboard
Tells U-Boot not to expect an attached keyboard with a VGA console
u-boot,efi-partition-entries-offset
If present, this provides an offset (in bytes, from the start of a
device) that should be skipped over before the partition entries.
This is used by the EFI/GPT partition implementation when a device
is formatted.
This setting will override any values configured via Kconfig.
u-boot,mmc-env-offset
u-boot,mmc-env-offset-redundant
If present, the values of the 'u-boot,mmc-env-offset' and/or
of the u-boot,mmc-env-offset-redundant' properties overrides
CONFIG_ENV_OFFSET and CONFIG_ENV_OFFSET_REDUND, respectively,
for SD/MMC devices.
Values are interpreted as the offset from the start of the
device, specified in bytes. It is assumed that the setting
will point at the beginning of a LBA and values that are not
LBA-aligned will be rounded up to the next LBA address.
u-boot,spl-payload-offset
If present (and SPL is controlled by the device-tree), this allows
to override the CONFIG_SYS_SPI_U_BOOT_OFFS setting using a value
from the device-tree.