| Philipp Tomsich | b357fe4 | 2017-03-01 21:10:40 +0100 | [diff] [blame] | 1 | The /config node (Configuration Options) |
| 2 | ---------------------------------------- |
| 3 | |
| 4 | A number of run-time configuration options are provided in the /config node |
| 5 | of the control device tree. You can access these using fdtdec_get_config_int(), |
| 6 | fdtdec_get_config_bool() and fdtdec_get_config_string(). |
| 7 | |
| 8 | Available options are: |
| 9 | |
| 10 | silent-console |
| 11 | If present and non-zero, the console is silenced by default on boot. |
| 12 | |
| 13 | no-keyboard |
| 14 | Tells U-Boot not to expect an attached keyboard with a VGA console |
| Philipp Tomsich | 842ac3f | 2017-03-01 21:10:41 +0100 | [diff] [blame] | 15 | |
| 16 | u-boot,efi-partition-entries-offset |
| 17 | If present, this provides an offset (in bytes, from the start of a |
| 18 | device) that should be skipped over before the partition entries. |
| 19 | This is used by the EFI/GPT partition implementation when a device |
| 20 | is formatted. |
| 21 | |
| 22 | This setting will override any values configured via Kconfig. |
| Philipp Tomsich | cbcf3a2 | 2017-04-17 17:45:12 +0200 | [diff] [blame] | 23 | |
| Jorge Ramirez-Ortiz | 03ab46c | 2017-11-06 14:16:37 +0100 | [diff] [blame] | 24 | u-boot,mmc-env-partition |
| 25 | if present, the environment shall be placed at the last |
| 26 | CONFIG_ENV_SIZE blocks of the partition on the |
| 27 | CONFIG_SYS_MMC_ENV_DEV. |
| 28 | |
| 29 | if u-boot,mmc-env-offset* is present, this setting will take |
| 30 | precedence. In that case, only if the partition is not found, |
| 31 | mmc-env-offset* will be tried. |
| 32 | |
| Philipp Tomsich | a7bdaf7 | 2017-05-16 00:16:32 +0200 | [diff] [blame] | 33 | u-boot,mmc-env-offset |
| 34 | u-boot,mmc-env-offset-redundant |
| 35 | If present, the values of the 'u-boot,mmc-env-offset' and/or |
| 36 | of the u-boot,mmc-env-offset-redundant' properties overrides |
| 37 | CONFIG_ENV_OFFSET and CONFIG_ENV_OFFSET_REDUND, respectively, |
| 38 | for SD/MMC devices. |
| 39 | |
| 40 | Values are interpreted as the offset from the start of the |
| 41 | device, specified in bytes. It is assumed that the setting |
| 42 | will point at the beginning of a LBA and values that are not |
| 43 | LBA-aligned will be rounded up to the next LBA address. |
| 44 | |
| Philipp Tomsich | cbcf3a2 | 2017-04-17 17:45:12 +0200 | [diff] [blame] | 45 | u-boot,spl-payload-offset |
| 46 | If present (and SPL is controlled by the device-tree), this allows |
| 47 | to override the CONFIG_SYS_SPI_U_BOOT_OFFS setting using a value |
| 48 | from the device-tree. |
| Philipp Tomsich | 145638f | 2017-11-28 17:56:11 +0100 | [diff] [blame] | 49 | |
| 50 | sysreset-gpio |
| 51 | If present (and supported by the specific board), indicates a |
| 52 | GPIO that can be set to trigger a system reset. It is assumed |
| 53 | that such a system reset will effect a complete platform reset, |
| 54 | being roughly equivalent to a power-on reset. |