config ENV_SUPPORT
def_bool y
+config SAVEENV
+ def_bool y if CMD_SAVEENV
+
+config ENV_OVERWRITE
+ bool "Enable overwriting environment"
+ help
+ Use this to permit overriding of certain environmental variables
+ like Ethernet and Serial
+
config ENV_IS_NOWHERE
bool "Environment is not stored"
default y if !ENV_IS_IN_EEPROM && !ENV_IS_IN_EXT4 && \
config ENV_IS_IN_EXT4
bool "Environment is in a EXT4 filesystem"
depends on !CHAIN_OF_TRUST
+ select FS_EXT4
select EXT4_WRITE
help
Define this if you want to use the EXT4 file system for the environment.
depends on !CHAIN_OF_TRUST
default y if ARCH_CINTEGRATOR
default y if ARCH_INTEGRATOR_CP
- default y if M548x || M547x || M5282 || MCF547x_8x
+ default y if M548x || M547x || M5282
default y if MCF532x || MCF52x2
default y if MPC86xx || MPC83xx
- default y if ARCH_MPC8572 || ARCH_MPC8548 || ARCH_MPC8641
+ default y if ARCH_MPC8548 || ARCH_MPC8641
default y if SH && !CPU_SH4
help
Define this if you have a flash device which you want to use for the
during a "saveenv" operation. CONFIG_ENV_OFFSET_REDUND must be
aligned to an erase sector boundary.
+config ENV_SECT_SIZE_AUTO
+ bool "Use automatically detected sector size"
+ depends on ENV_IS_IN_SPI_FLASH
+ help
+ Some boards exist in multiple variants, with different
+ flashes having different sector sizes. In such cases, you
+ can select this option to make U-Boot use the actual sector
+ size when figuring out how much to erase, which can thus be
+ more efficient on the flashes with smaller erase size. Since
+ the environment must always be aligned on a sector boundary,
+ CONFIG_ENV_OFFSET must be aligned to the largest of the
+ different sector sizes, and CONFIG_ENV_SECT_SIZE should be
+ set to that value.
+
config USE_ENV_SPI_BUS
bool "SPI flash bus for environment"
depends on ENV_IS_IN_SPI_FLASH
Value of the SPI work mode for environment.
See include/spi.h for value.
+config ENV_SPI_EARLY
+ bool "Access Environment in SPI flashes before relocation"
+ depends on ENV_IS_IN_SPI_FLASH
+ help
+ Enable this if you want to use Environment in SPI flash
+ before relocation. Call env_init() and than you can use
+ env_get_f() for accessing Environment variables.
+
config ENV_IS_IN_UBI
bool "Environment in a UBI volume"
depends on !CHAIN_OF_TRUST
config SYS_REDUNDAND_ENVIRONMENT
bool "Enable redundant environment support"
- depends on ENV_IS_IN_EEPROM || ENV_IS_IN_FLASH || ENV_IS_IN_MMC || \
- ENV_IS_IN_NAND || ENV_IS_IN_SPI_FLASH || ENV_IS_IN_UBI
help
Normally, the environemt is stored in a single location. By
selecting this option, you can then define where to hold a redundant
copy of the environment data, so that there is a valid backup copy in
case there is a power failure during a "saveenv" operation.
+ Also this config changes the binary environment structure handling
+ which is used by env import/export commands which are independent of
+ storing variables to redundant location on a non volatile device.
config ENV_FAT_INTERFACE
string "Name of the block device for the environment"
depends on ENV_IS_IN_FAT
- default "mmc" if ARCH_SUNXI
- default "mmc" if TI_COMMON_CMD_OPTIONS || ARCH_ZYNQMP || ARCH_AT91
+ default "mmc"
help
Define this to a string that is the name of the block device.
string "Device and partition for where to store the environemt in FAT"
depends on ENV_IS_IN_FAT
default "0:1" if TI_COMMON_CMD_OPTIONS
- default "0:auto" if ARCH_ZYNQMP
+ default "0:auto" if ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL
default "0:auto" if ARCH_SUNXI && MMC_SUNXI_SLOT_EXTRA = -1
default "1:auto" if ARCH_SUNXI && MMC_SUNXI_SLOT_EXTRA != -1
default "0" if ARCH_AT91
If none, first valid partition in device D. If no
partition table then means device D.
+ If ENV_FAT_INTERFACE is set to "mmc" then device 'D' can be omitted,
+ leaving the string starting with a colon, and the boot device will
+ be used.
+
config ENV_FAT_FILE
string "Name of the FAT file to use for the environment"
depends on ENV_IS_IN_FAT
It's a string of the FAT file name. This file use to store the
environment.
+config ENV_FAT_FILE_REDUND
+ string "Name of the FAT file to use for the environment"
+ depends on ENV_IS_IN_FAT && SYS_REDUNDAND_ENVIRONMENT
+ default "uboot-redund.env"
+ help
+ It's a string of the FAT file name. This file use to store the
+ redundant environment.
+
config ENV_EXT4_INTERFACE
string "Name of the block device for the environment"
depends on ENV_IS_IN_EXT4
If none, first valid partition in device D. If no
partition table then means device D.
+ If ENV_EXT4_INTERFACE is set to "mmc" then device 'D' can be omitted,
+ leaving the string starting with a colon, and the boot device will
+ be used.
+
config ENV_EXT4_FILE
string "Name of the EXT4 file to use for the environment"
depends on ENV_IS_IN_EXT4
- default "uboot.env"
+ default "/uboot.env"
help
It's a string of the EXT4 file name. This file use to store the
environment (explicit path to the file)
hex "Redundant environment offset"
depends on (ENV_IS_IN_EEPROM || ENV_IS_IN_MMC || ENV_IS_IN_NAND || \
ENV_IS_IN_SPI_FLASH) && SYS_REDUNDAND_ENVIRONMENT
+ default 0
help
Offset from the start of the device (or partition) of the redundant
environment location.
UBI VID offset for environment. If 0, no custom VID offset is used.
config SYS_RELOC_GD_ENV_ADDR
- bool "Relocate gd->en_addr"
+ bool "Relocate gd->env_addr"
help
Relocate the early env_addr pointer so we know it is not inside
the binary. Some systems need this and for the rest, it doesn't hurt.
+config SYS_MMC_ENV_DEV
+ int "mmc device number"
+ depends on ENV_IS_IN_MMC || ENV_IS_IN_FAT || SYS_LS_PPA_FW_IN_MMC || \
+ CMD_MVEBU_BUBT || FMAN_ENET || QE
+ default 0
+ help
+ MMC device number on the platform where the environment is stored.
+
+config SYS_MMC_ENV_PART
+ int "mmc partition number"
+ depends on ENV_IS_IN_MMC || ENV_IS_IN_FAT
+ default 0
+ help
+ MMC hardware partition device number on the platform where the
+ environment is stored. Note that this is not related to any software
+ defined partition table but instead if we are in the user area, which is
+ partition 0 or the first boot partition, which is 1 or some other defined
+ partition.
+
config USE_DEFAULT_ENV_FILE
bool "Create default environment from file"
help
run-time determined information about the hardware to the
environment. These will be named board_name, board_rev.
+config DELAY_ENVIRONMENT
+ bool "Delay environment loading"
+ depends on !OF_CONTROL
+ help
+ Enable this to inhibit loading the environment during board
+ initialization. This can address the security risk of untrusted data
+ being used during boot. Normally the environment is loaded when the
+ board is initialised so that it is available to U-Boot. This inhibits
+ that so that the environment is not available until explicitly loaded
+ later by U-Boot code. With CONFIG_OF_CONTROL this is instead
+ controlled by the value of /config/load-environment.
+
+config ENV_IMPORT_FDT
+ bool "Amend environment by FDT properties"
+ depends on OF_CONTROL
+ help
+ If selected, after the environment has been loaded from its
+ persistent location, the "env_fdt_path" variable is looked
+ up and used as a path to a node in the control DTB. The
+ property/value pairs in that node is then used to update the
+ run-time environment. This can be useful to use the same
+ U-Boot binary with different board variants.
+
+config ENV_FDT_PATH
+ string "Default value for env_fdt_path variable"
+ depends on ENV_IMPORT_FDT
+ default "/config/environment"
+ help
+ The initial value of the env_fdt_path variable.
+
+config ENV_APPEND
+ bool "Always append the environment with new data"
+ default n
+ help
+ If defined, the environment hash table is only ever appended with new
+ data, but the existing hash table can never be dropped and reloaded
+ with newly imported data. This may be used in combination with static
+ flags to e.g. to protect variables which must not be modified.
+
+config ENV_WRITEABLE_LIST
+ bool "Permit write access only to listed variables"
+ default n
+ help
+ If defined, only environment variables which explicitly set the 'w'
+ writeable flag can be written and modified at runtime. No variables
+ can be otherwise created, written or imported into the environment.
+
+config ENV_ACCESS_IGNORE_FORCE
+ bool "Block forced environment operations"
+ default n
+ help
+ If defined, don't allow the -f switch to env set override variable
+ access flags.
+
if SPL_ENV_SUPPORT
config SPL_ENV_IS_NOWHERE
bool "SPL Environment is not stored"
endif
+config VERSION_VARIABLE
+ bool "Add a 'ver' environment variable with the U-Boot version"
+ help
+ If this variable is defined, an environment variable
+ named "ver" is created by U-Boot showing the U-Boot
+ version as printed by the "version" command.
+ Any change to this variable will be reverted at the
+ next reset.
+
endmenu
projects / platform / kernel / u-boot.git / blobdiff