menu "Environment"
+choice
+ prompt "Select the location of the environment"
+ default ENV_IS_IN_MMC if ARCH_SUNXI
+ default ENV_IS_IN_MMC if ARCH_UNIPHIER
+ default ENV_IS_IN_MMC if ARCH_EXYNOS4
+ default ENV_IS_IN_MMC if MX6SX || MX7D
+ default ENV_IS_IN_MMC if TEGRA30 || TEGRA124
+ default ENV_IS_IN_MMC if TEGRA_ARMV8_COMMON
+ default ENV_IS_IN_FLASH if ARCH_CINTEGRATOR
+ default ENV_IS_IN_FLASH if ARCH_INTEGRATOR_CP
+ default ENV_IS_IN_FLASH if M548x || M547x || M5282 || MCF547x_8x
+ default ENV_IS_IN_FLASH if MCF532x || MCF52x2
+ default ENV_IS_IN_FLASH if MPC86xx || MPC83xx
+ default ENV_IS_IN_FLASH if ARCH_MPC8572 || ARCH_MPC8548 || ARCH_MPC8641
+ default ENV_IS_IN_FLASH if SH && !CPU_SH4
+ default ENV_IS_IN_SPI_FLASH if ARMADA_XP
+ default ENV_IS_IN_SPI_FLASH if INTEL_BAYTRAIL
+ default ENV_IS_IN_SPI_FLASH if INTEL_BROADWELL
+ default ENV_IS_IN_SPI_FLASH if NORTHBRIDGE_INTEL_IVYBRIDGE
+ default ENV_IS_IN_SPI_FLASH if INTEL_QUARK
+ default ENV_IS_IN_SPI_FLASH if INTEL_QUEENSBAY
+ default ENV_IS_IN_FAT if ARCH_BCM283X
+ default ENV_IS_IN_FAT if MMC_OMAP_HS && TI_COMMON_CMD_OPTIONS
+ default ENV_IS_NOWHERE
+ help
+ At present the environment can be stored in only one place. Use this
+ option to select the location. This is either a device (where the
+ environemnt information is simply written to a fixed location or
+ partition on the device) or a filesystem (where the environment
+ information is written to a file).
+
+config ENV_IS_NOWHERE
+ bool "Environment is not stored"
+ help
+ Define this if you don't want to or can't have an environment stored
+ on a storage medium. In this case the environemnt will still exist
+ while U-Boot is running, but once U-Boot exits it will not be
+ stored. U-Boot will therefore always start up with a default
+ environment.
+
config ENV_IS_IN_DATAFLASH
bool "Environment in dataflash"
depends on !CHAIN_OF_TRUST
These two #defines specify the offset and size of the
environment area within the total memory of your EEPROM.
- - CONFIG_SYS_I2C_EEPROM_ADDR:
- If defined, specified the chip address of the EEPROM device.
- The default address is zero.
-
- - CONFIG_SYS_I2C_EEPROM_BUS:
- If defined, specified the i2c bus of the EEPROM device.
-
- - CONFIG_SYS_EEPROM_PAGE_WRITE_BITS:
- If defined, the number of bits used to address bytes in a
- single page in the EEPROM device. A 64 byte page, for example
- would require six bits.
-
- - CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS:
- If defined, the number of milliseconds to delay between
- page writes. The default is zero milliseconds.
-
- - CONFIG_SYS_I2C_EEPROM_ADDR_LEN:
- The length in bytes of the EEPROM memory array address. Note
- that this is NOT the chip address length!
-
- - CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW:
- EEPROM chips that implement "address overflow" are ones
- like Catalyst 24WC04/08/16 which has 9/10/11 bits of
- address and the extra bits end up in the "chip address" bit
- slots. This makes a 24WC08 (1Kbyte) chip look like four 256
- byte chips.
-
Note that we consider the length of the address field to
still be one byte because the extra address bits are hidden
in the chip address.
- - CONFIG_SYS_EEPROM_SIZE:
- The size in bytes of the EEPROM device.
-
- 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.
depends on !CHAIN_OF_TRUST
select FAT_WRITE
help
- Define this if you want to use the FAT file system for the environment.
+ Define this if you want to use the FAT file system for the environment.
-
- - CONFIG_FAT_WRITE:
- This must be enabled. Otherwise it cannot save the environment file.
+ - CONFIG_FAT_WRITE:
+ This must be enabled. Otherwise it cannot save the environment file.
config ENV_IS_IN_FLASH
bool "Environment in flash memory"
config ENV_IS_IN_MMC
bool "Environment in an MMC device"
depends on !CHAIN_OF_TRUST
- default y if ARCH_SUNXI
help
Define this if you have an MMC device which you want to use for the
environment.
You will probably want to define these to avoid a really noisy system
when storing the env in UBI.
-config ENV_IS_NOWHERE
- bool "Environment is not stored"
+endchoice
+
+config ENV_AES
+ bool "AES-128 encryption for stored environment (DEPRECATED)"
help
- Define this if you don't want to or can't have an environment stored
- on a storage medium
+ Enable this to have the on-device stored environment be encrypted
+ with AES-128. The implementation here however has security
+ complications and is not recommended for use. Please see
+ CVE-2017-3225 and CVE-2017-3226 for more details.
config ENV_FAT_INTERFACE
string "Name of the block device for the environment"
projects / u-boot / blobdiff