Kconfig - OpenGrok cross reference for /openbmc/u-boot/env/Kconfig

4 	bool "Environment is not stored"
19 	  on a storage medium. In this case the environment will still exist
20 	  while U-Boot is running, but once U-Boot exits it will not be
21 	  stored. U-Boot will therefore always start up with a default
31 	  - CONFIG_ENV_OFFSET:
32 	  - CONFIG_ENV_SIZE:
41 	  - CONFIG_ENV_EEPROM_IS_ON_I2C
43 	  EEPROM, which holds the environment, is on the I2C bus.
45 	  - CONFIG_I2C_ENV_EEPROM_BUS
52 	  EEPROM which holds the environment, is reached over
56 	bool "Environment is in a FAT filesystem"
67 	bool "Environment is in a EXT4 filesystem"
87 	  a) The environment occupies one whole flash sector, which is
88 	   "embedded" in the text segment with the U-Boot code. This
89 	   happens usually with "bottom boot sector" or "top boot
94 	   4 kB sectors - with U-Boot code before and after it. With
95 	   "top boot sector" type flash chips, you would put the
97 	   between U-Boot and the environment.
102 	   beginning of flash memory; for instance, with bottom boot
104 	   for this sector is given here.
106 	   CONFIG_ENV_OFFSET is used relative to CONFIG_SYS_FLASH_BASE.
110 	   This is just another way to specify the start address of
131 	   when your environment is "embedded" within U-Boot code,
133 	   for U-Boot code. It should be pointed out that this is
144 	   a redundant copy of the environment data, so that there is
145 	   a valid backup copy in case there is a power failure during
149 	  source code will make it necessary to adapt <board>/u-boot.lds*
166 	  Specifies which MMC device the environment is stored in.
170 	  Specifies which MMC partition the environment is stored in. If not
172 	  1 (first MMC boot partition), 2 (second MMC boot partition).
180 	  If offset is positive (the usual case), it is treated as relative to
181 	  the start of the MMC partition. If offset is negative, it is treated
195 	  valid backup copy in case the other copy is corrupted, e.g. due
198 	  This value may also be positive or negative; this is handled in the
201 	  This value is also in units of bytes, but must also be aligned to
206 	  This value need not be set, even when CONFIG_ENV_OFFSET_REDUND is
207 	  set. If this value is set, it must be set to the same value as
211 	bool "Environment in a NAND device"
214 	  Define this if you have a NAND device which you want to use for the
217 	  - CONFIG_ENV_OFFSET:
218 	  - CONFIG_ENV_SIZE:
221 	  area within the first NAND device.  CONFIG_ENV_OFFSET must be
224 	  - CONFIG_ENV_OFFSET_REDUND (optional):
228 	  that there is a valid backup copy in case there is a power failure
232 	  - CONFIG_ENV_RANGE (optional):
235 	  can be written.  This should be a multiple of the NAND device's
240 	  - CONFIG_ENV_OFFSET_OOB (optional):
243 	  environment from block zero's out-of-band data.  The
244 	  "nand env.oob" command can be used to record this offset.
245 	  Currently, CONFIG_ENV_OFFSET_REDUND is not supported when
249 	bool "Environment in a non-volatile RAM"
252 	  Define this if you have some non-volatile memory device
256 	  - CONFIG_ENV_ADDR:
257 	  - CONFIG_ENV_SIZE:
260 	  want to use for environment. It is assumed that this memory
265 	bool "Environment is in OneNAND"
271 	  - CONFIG_ENV_ADDR:
272 	  - CONFIG_ENV_SIZE:
275 	  want to use for environment. It is assumed that this memory
280 	bool "Environment is in remote memory space"
286 	  - CONFIG_ENV_ADDR:
287 	  - CONFIG_ENV_SIZE:
295 	bool "Environment is in SPI flash"
308 	  - CONFIG_ENV_OFFSET:
309 	  - CONFIG_ENV_SIZE:
315 	  - CONFIG_ENV_SECT_SIZE:
319 	  - CONFIG_ENV_OFFSET_REDUND (optional):
323 	  that there is a valid backup copy in case there is a power failure
384 	  environment.  This has the benefit of wear-leveling the environment
385 	  accesses, which is important on NAND.
387 	  - CONFIG_ENV_UBI_PART:
389 	  Define this to a string that is the mtd partition containing the UBI.
391 	  - CONFIG_ENV_UBI_VOLUME:
396 	  - CONFIG_ENV_UBI_VOLUME_REDUND:
400 	  It is assumed that both volumes are in the same MTD partition.
408 	  Define this to a string that is the name of the block device.
415 	default "0:auto" if ARCH_SUNXI && MMC_SUNXI_SLOT_EXTRA = -1
416 	default "1:auto" if ARCH_SUNXI && MMC_SUNXI_SLOT_EXTRA != -1
423 	       - "D:P": device D partition P. Error occurs if device D has no
425 	       - "D:0": device D.
426 	       - "D" or "D:": device D partition 1 if device D has partition
429 	       - "D:auto": first partition in device D with bootable flag set.
445 	  Define this to a string that is the name of the block device.
455 	       - "D:P": device D partition P. Error occurs if device D has no
457 	       - "D:0": device D.
458 	       - "D" or "D:": device D partition 1 if device D has partition
461 	       - "D:auto": first partition in device D with bootable flag set.
497 	hex "Environment Sector-Size"
521 	  Normally, the default environment is automatically generated
531 	  The path containing the default environment. The format is
537 	bool "Add run-time information to the environment"
540 	  run-time determined information about the hardware to the
545 	bool "SPL Environment is not stored"
559 	bool "SPL Environment is in a FAT filesystem"
567 	bool "SPL Environment is in a EXT4 filesystem"
575 	bool "SPL Environment in a NAND device"
583 	bool "SPL Environment is in SPI flash"
603 	bool "TPL Environment is not stored"
617 	bool "TPL Environment is in a FAT filesystem"
625 	bool "TPL Environment is in a EXT4 filesystem"
633 	bool "TPL Environment in a NAND device"
641 	bool "TPL Environment is in SPI flash"