config ENV_SUPPORT
def_bool y
+config ENV_SOURCE_FILE
+ string "Environment file to use"
+ default ""
+ help
+ This sets the basename to use to generate the default environment.
+ This a text file as described in doc/usage/environment.rst
+
+ The file must be in the board directory and have a .env extension, so
+ the resulting filename is typically
+ board/<vendor>/<board>/<CONFIG_ENV_SOURCE_FILE>.env
+
+ If the file is not present, an error is produced.
+
+ If this CONFIG is empty, U-Boot uses CONFIG SYS_BOARD as a default, if
+ the file board/<vendor>/<board>/<SYS_BOARD>.env exists. Otherwise the
+ environment is assumed to come from the ad-hoc
+ CONFIG_EXTRA_ENV_SETTINGS #define
+
config SAVEENV
def_bool y if CMD_SAVEENV
still be one byte because the extra address bits are hidden
in the chip address.
- - CONFIG_ENV_EEPROM_IS_ON_I2C
- define this, if you have I2C and SPI activated, and your
- EEPROM, which holds the environment, is on the I2C bus.
-
- CONFIG_I2C_ENV_EEPROM_BUS
if you have an Environment on an EEPROM reached over
I2C muxes, you can define here, how to reach this
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
default y if SH && !CPU_SH4
help
Define this if you have a flash device which you want to use for the
This value may also be positive or negative; this is handled in the
same way as CONFIG_ENV_OFFSET.
+ In case CONFIG_SYS_MMC_ENV_PART is 1 (i.e. environment in eMMC boot
+ partition) then setting CONFIG_ENV_OFFSET_REDUND to the same value
+ as CONFIG_ENV_OFFSET makes use of the second eMMC boot partition for
+ the redundant environment copy.
+
This value is also in units of bytes, but must also be aligned to
an MMC sector boundary.
default y if NORTHBRIDGE_INTEL_IVYBRIDGE
default y if INTEL_QUARK
default y if INTEL_QUEENSBAY
+ default y if ARCH_SUNXI
help
Define this if you have a SPI Flash memory device which you
want to use for the environment.
during a "saveenv" operation. CONFIG_ENV_OFFSET_REDUND must be
aligned to an erase sector boundary.
-config USE_ENV_SPI_BUS
- bool "SPI flash bus for environment"
+config ENV_SECT_SIZE_AUTO
+ bool "Use automatically detected sector size"
depends on ENV_IS_IN_SPI_FLASH
help
- Force the SPI bus for environment.
- If not defined, use CONFIG_SF_DEFAULT_BUS.
+ 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 ENV_SPI_BUS
int "Value of SPI flash bus for environment"
- depends on USE_ENV_SPI_BUS
- help
- Value the SPI bus and chip select for environment.
-
-config USE_ENV_SPI_CS
- bool "SPI flash chip select for environment"
depends on ENV_IS_IN_SPI_FLASH
+ default SF_DEFAULT_BUS
help
- Force the SPI chip select for environment.
- If not defined, use CONFIG_SF_DEFAULT_CS.
+ Value the SPI bus and chip select for environment.
config ENV_SPI_CS
int "Value of SPI flash chip select for environment"
- depends on USE_ENV_SPI_CS
- help
- Value of the SPI chip select for environment.
-
-config USE_ENV_SPI_MAX_HZ
- bool "SPI flash max frequency for environment"
depends on ENV_IS_IN_SPI_FLASH
+ default SF_DEFAULT_CS
help
- Force the SPI max work clock for environment.
- If not defined, use CONFIG_SF_DEFAULT_SPEED.
+ Value of the SPI chip select for environment.
config ENV_SPI_MAX_HZ
int "Value of SPI flash max frequency for environment"
- depends on USE_ENV_SPI_MAX_HZ
- help
- Value of the SPI max work clock for environment.
-
-config USE_ENV_SPI_MODE
- bool "SPI flash mode for environment"
depends on ENV_IS_IN_SPI_FLASH
+ default SF_DEFAULT_SPEED
help
- Force the SPI work mode for environment.
+ Value of the SPI max work clock for environment.
config ENV_SPI_MODE
hex "Value of SPI flash work mode for environment"
- depends on USE_ENV_SPI_MODE
+ depends on ENV_IS_IN_SPI_FLASH
+ default SF_DEFAULT_MODE
help
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"
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_ZYNQ || ARCH_ZYNQMP
- default "0:auto" if ARCH_SUNXI && MMC_SUNXI_SLOT_EXTRA = -1
- default "1:auto" if ARCH_SUNXI && MMC_SUNXI_SLOT_EXTRA != -1
+ default "0:auto" if ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL
+ default ":auto" if ARCH_SUNXI
default "0" if ARCH_AT91
help
Define this to a string to specify the partition of the device. It can
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
ENV_IS_IN_SPI_FLASH
default 0x3f8000 if ARCH_ROCKCHIP && ENV_IS_IN_MMC
default 0x140000 if ARCH_ROCKCHIP && ENV_IS_IN_SPI_FLASH
- default 0x88000 if ARCH_SUNXI
+ default 0xF0000 if ARCH_SUNXI
default 0xE0000 if ARCH_ZYNQ
default 0x1E00000 if ARCH_ZYNQMP
default 0x7F40000 if ARCH_VERSAL
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.
config ENV_SIZE
hex "Environment Size"
default 0x40000 if ENV_IS_IN_SPI_FLASH && ARCH_ZYNQMP
- default 0x20000 if ARCH_SUNXI || ARCH_ZYNQ || ARCH_OMAP2PLUS || ARCH_AT91
+ default 0x20000 if ARCH_ZYNQ || ARCH_OMAP2PLUS || ARCH_AT91
+ default 0x10000 if ARCH_SUNXI
default 0x8000 if ARCH_ROCKCHIP && ENV_IS_IN_MMC
default 0x2000 if ARCH_ROCKCHIP && ENV_IS_IN_SPI_FLASH
default 0x8000 if ARCH_ZYNQMP || ARCH_VERSAL
default 0x40000 if ARCH_ZYNQMP || ARCH_VERSAL
default 0x20000 if ARCH_ZYNQ || ARCH_OMAP2PLUS || ARCH_AT91
default 0x20000 if MICROBLAZE && ENV_IS_IN_SPI_FLASH
+ default 0x10000 if ARCH_SUNXI && ENV_IS_IN_SPI_FLASH
help
Size of the sector containing the environment.
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
+ CMD_MVEBU_BUBT || FMAN_ENET || QE || PHY_CORTINA
default 0
help
MMC device number on the platform where the environment is stored.
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
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
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.
endif
+config USE_BOOTFILE
+ bool "Add a 'bootfile' environment variable"
+ help
+ The "bootfile" variable is used in some cases to allow for
+ controlling what file U-Boot will attempt to load and boot. To set
+ this, enable this option and set the value in the next question.
+
+config BOOTFILE
+ string "'bootfile' environment variable value"
+ depends on USE_BOOTFILE
+ help
+ The value to set the "bootfile" variable to.
+
config VERSION_VARIABLE
bool "Add a 'ver' environment variable with the U-Boot version"
help
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