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
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.
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
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.
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