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Diffstat (limited to 'roms/u-boot/doc/device-tree-bindings/config.txt')
| -rw-r--r-- | roms/u-boot/doc/device-tree-bindings/config.txt | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/roms/u-boot/doc/device-tree-bindings/config.txt b/roms/u-boot/doc/device-tree-bindings/config.txt new file mode 100644 index 000000000..6cdc16da5 --- /dev/null +++ b/roms/u-boot/doc/device-tree-bindings/config.txt @@ -0,0 +1,54 @@ +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-partition + if present, the environment shall be placed at the last + CONFIG_ENV_SIZE blocks of the partition on the + CONFIG_SYS_MMC_ENV_DEV. + + if u-boot,mmc-env-offset* is present, this setting will take + precedence. In that case, only if the partition is not found, + mmc-env-offset* will be tried. + +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. + +sysreset-gpio + If present (and supported by the specific board), indicates a + GPIO that can be set to trigger a system reset. It is assumed + that such a system reset will effect a complete platform reset, + being roughly equivalent to a power-on reset. |