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
Use this to permit overriding of certain environmental variables
like Ethernet and Serial
+config ENV_MIN_ENTRIES
+ int "Minimum number of entries in the environment hashtable"
+ default 64
+ help
+ Minimum number of entries in the hash table that is used internally
+ to store the environment settings.
+
+config ENV_MAX_ENTRIES
+ int "Maximumm number of entries in the environment hashtable"
+ default 512
+ help
+ Maximum number of entries in the hash table that is used internally
+ to store the environment settings. The default setting is supposed to
+ be generous and should work in most cases. This setting can be used
+ to tune behaviour; see lib/hashtable.c for details.
+
config ENV_IS_NOWHERE
bool "Environment is not stored"
default y if !ENV_IS_IN_EEPROM && !ENV_IS_IN_EXT4 && \
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
type flash chips the second sector can be used: the offset
for this sector is given here.
- CONFIG_ENV_OFFSET is used relative to CONFIG_SYS_FLASH_BASE.
+ CONFIG_ENV_OFFSET is used relative to CFG_SYS_FLASH_BASE.
CONFIG_ENV_ADDR:
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.
during a "saveenv" operation. CONFIG_ENV_OFFSET_REDUND must be
aligned to an erase block boundary.
- - CONFIG_ENV_RANGE (optional):
-
- Specifies the length of the region in which the environment
- can be written. This should be a multiple of the NAND device's
- block size. Specifying a range with more erase blocks than
- are needed to hold CONFIG_ENV_SIZE allows bad blocks within
- the range to be avoided.
-
- CONFIG_ENV_OFFSET_OOB (optional):
Enables support for dynamically retrieving the offset of the
Currently, CONFIG_ENV_OFFSET_REDUND is not supported when
using CONFIG_ENV_OFFSET_OOB.
+config ENV_RANGE
+ hex "Length of the region in which the environment can be written"
+ depends on ENV_IS_IN_NAND
+ range ENV_SIZE 0x7fffffff
+ default ENV_SIZE
+ help
+ This should be a multiple of the NAND device's block size.
+ Specifying a range with more erase blocks than are needed to hold
+ CONFIG_ENV_SIZE allows bad blocks within the range to be avoided.
+
config ENV_IS_IN_NVRAM
bool "Environment in a non-volatile RAM"
depends on !CHAIN_OF_TRUST
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.
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
- help
- Force the SPI bus for environment.
- If not defined, use CONFIG_SF_DEFAULT_BUS.
-
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.
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
+ default 0x7F40000 if ARCH_VERSAL || ARCH_VERSAL_NET
default 0 if ARC
default 0x140000 if ARCH_AT91
default 0x260000 if ARCH_OMAP2PLUS
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 0x10C0000 if MICROBLAZE
default 0
help
Offset from the start of the device (or partition) of the redundant
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 0x8000 if ARCH_ZYNQMP || ARCH_VERSAL || ARCH_VERSAL_NET
default 0x4000 if ARC
default 0x1f000
help
hex "Environment Sector-Size"
depends on ENV_IS_IN_FLASH || ENV_IS_IN_SPI_FLASH
default 0x2000 if ARCH_ROCKCHIP
- default 0x40000 if ARCH_ZYNQMP || ARCH_VERSAL
+ default 0x40000 if ARCH_ZYNQMP || ARCH_VERSAL || ARCH_VERSAL_NET
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.
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 USE_ETHPRIME
+ bool "Add an 'ethprime' environment variable"
+ help
+ The "ethprime" variable is used in some cases to control which
+ network interface is used first.
+
+config ETHPRIME
+ string "'ethprime' environment variable value"
+ depends on USE_ETHPRIME
+ help
+ The value to set the "ethprime" variable to.
+
config VERSION_VARIABLE
bool "Add a 'ver' environment variable with the U-Boot version"
help
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