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u-boot/env/Kconfig
Maxime Ripard 0163c9186b env: sunxi: Enable FAT-based environment support by default 
Now that we have everything in place to implement the transition scheme,
let's enable it by default.

Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2018-01-27 09:23:32 -05:00

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menu "Environment"
config ENV_IS_NOWHERE
bool "Environment is not stored"
depends on !ENV_IS_IN_EEPROM
depends on !ENV_IS_IN_FAT
depends on !ENV_IS_IN_FLASH
depends on !ENV_IS_IN_MMC
depends on !ENV_IS_IN_NAND
depends on !ENV_IS_IN_NVRAM
depends on !ENV_IS_IN_ONENAND
depends on !ENV_IS_IN_REMOTE
depends on !ENV_IS_IN_SPI_FLASH
depends on !ENV_IS_IN_UBI
default y
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_EEPROM
bool "Environment in EEPROM"
depends on !CHAIN_OF_TRUST
help
Use this if you have an EEPROM or similar serial access
device and a driver for it.
- CONFIG_ENV_OFFSET:
- CONFIG_ENV_SIZE:
These two #defines specify the offset and size of the
environment area within the total memory of your EEPROM.
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_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
EEPROM. For example:
#define CONFIG_I2C_ENV_EEPROM_BUS 1
EEPROM which holds the environment, is reached over
a pca9547 i2c mux with address 0x70, channel 3.
config ENV_IS_IN_FAT
bool "Environment is in a FAT filesystem"
depends on !CHAIN_OF_TRUST
default y if ARCH_BCM283X
default y if ARCH_SUNXI && MMC
default y if MMC_OMAP_HS && TI_COMMON_CMD_OPTIONS
select FS_FAT
select FAT_WRITE
help
Define this if you want to use the FAT file system for the environment.
config ENV_IS_IN_EXT4
bool "Environment is in a EXT4 filesystem"
depends on !CHAIN_OF_TRUST
select EXT4_WRITE
help
Define this if you want to use the EXT4 file system for the environment.
config ENV_IS_IN_FLASH
bool "Environment in flash memory"
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 MCF532x || MCF52x2
default y if MPC86xx || MPC83xx
default y if ARCH_MPC8572 || ARCH_MPC8548 || ARCH_MPC8641
default y if SH && !CPU_SH4
help
Define this if you have a flash device which you want to use for the
environment.
a) The environment occupies one whole flash sector, which is
"embedded" in the text segment with the U-Boot code. This
happens usually with "bottom boot sector" or "top boot
sector" type flash chips, which have several smaller
sectors at the start or the end. For instance, such a
layout can have sector sizes of 8, 2x4, 16, Nx32 kB. In
such a case you would place the environment in one of the
4 kB sectors - with U-Boot code before and after it. With
"top boot sector" type flash chips, you would put the
environment in one of the last sectors, leaving a gap
between U-Boot and the environment.
CONFIG_ENV_OFFSET:
Offset of environment data (variable area) to the
beginning of flash memory; for instance, with bottom boot
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_ADDR:
This is just another way to specify the start address of
the flash sector containing the environment (instead of
CONFIG_ENV_OFFSET).
CONFIG_ENV_SECT_SIZE:
Size of the sector containing the environment.
b) Sometimes flash chips have few, equal sized, BIG sectors.
In such a case you don't want to spend a whole sector for
the environment.
CONFIG_ENV_SIZE:
If you use this in combination with CONFIG_ENV_IS_IN_FLASH
and CONFIG_ENV_SECT_SIZE, you can specify to use only a part
of this flash sector for the environment. This saves
memory for the RAM copy of the environment.
It may also save flash memory if you decide to use this
when your environment is "embedded" within U-Boot code,
since then the remainder of the flash sector could be used
for U-Boot code. It should be pointed out that this is
STRONGLY DISCOURAGED from a robustness point of view:
updating the environment in flash makes it always
necessary to erase the WHOLE sector. If something goes
wrong before the contents has been restored from a copy in
RAM, your target system will be dead.
CONFIG_ENV_ADDR_REDUND
CONFIG_ENV_SIZE_REDUND
These settings describe a second storage area used 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.
BE CAREFUL! Any changes to the flash layout, and some changes to the
source code will make it necessary to adapt <board>/u-boot.lds*
accordingly!
config ENV_IS_IN_MMC
bool "Environment in an MMC device"
depends on !CHAIN_OF_TRUST
depends on MMC
default y if ARCH_SUNXI
default y if ARCH_EXYNOS4
default y if MX6SX || MX7D
default y if TEGRA30 || TEGRA124
default y if TEGRA_ARMV8_COMMON
help
Define this if you have an MMC device which you want to use for the
environment.
CONFIG_SYS_MMC_ENV_DEV:
Specifies which MMC device the environment is stored in.
CONFIG_SYS_MMC_ENV_PART (optional):
Specifies which MMC partition the environment is stored in. If not
set, defaults to partition 0, the user area. Common values might be
1 (first MMC boot partition), 2 (second MMC boot partition).
CONFIG_ENV_OFFSET:
CONFIG_ENV_SIZE:
These two #defines specify the offset and size of the environment
area within the specified MMC device.
If offset is positive (the usual case), it is treated as relative to
the start of the MMC partition. If offset is negative, it is treated
as relative to the end of the MMC partition. This can be useful if
your board may be fitted with different MMC devices, which have
different sizes for the MMC partitions, and you always want the
environment placed at the very end of the partition, to leave the
maximum possible space before it, to store other data.
These two values are in units of bytes, but must be aligned to an
MMC sector boundary.
CONFIG_ENV_OFFSET_REDUND (optional):
Specifies a second storage area, of CONFIG_ENV_SIZE size, used to
hold a redundant copy of the environment data. This provides a
valid backup copy in case the other copy is corrupted, e.g. due
to a power failure during a "saveenv" operation.
This value may also be positive or negative; this is handled in the
same way as CONFIG_ENV_OFFSET.
This value is also in units of bytes, but must also be aligned to
an MMC sector boundary.
CONFIG_ENV_SIZE_REDUND (optional):
This value need not be set, even when CONFIG_ENV_OFFSET_REDUND is
set. If this value is set, it must be set to the same value as
CONFIG_ENV_SIZE.
config ENV_IS_IN_NAND
bool "Environment in a NAND device"
depends on !CHAIN_OF_TRUST
help
Define this if you have a NAND device which you want to use for the
environment.
- CONFIG_ENV_OFFSET:
- CONFIG_ENV_SIZE:
These two #defines specify the offset and size of the environment
area within the first NAND device. CONFIG_ENV_OFFSET must be
aligned to an erase block boundary.
- CONFIG_ENV_OFFSET_REDUND (optional):
This setting describes a second storage area of CONFIG_ENV_SIZE
size used 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. 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
environment from block zero's out-of-band data. The
"nand env.oob" command can be used to record this offset.
Currently, CONFIG_ENV_OFFSET_REDUND is not supported when
using CONFIG_ENV_OFFSET_OOB.
config ENV_IS_IN_NVRAM
bool "Environment in a non-volatile RAM"
depends on !CHAIN_OF_TRUST
help
Define this if you have some non-volatile memory device
(NVRAM, battery buffered SRAM) which you want to use for the
environment.
- CONFIG_ENV_ADDR:
- CONFIG_ENV_SIZE:
These two #defines are used to determine the memory area you
want to use for environment. It is assumed that this memory
can just be read and written to, without any special
provision.
config ENV_IS_IN_ONENAND
bool "Environment is in OneNAND"
depends on !CHAIN_OF_TRUST
help
Define this if you want to put your local device's environment in
OneNAND.
- CONFIG_ENV_ADDR:
- CONFIG_ENV_SIZE:
These two #defines are used to determine the device range you
want to use for environment. It is assumed that this memory
can just be read and written to, without any special
provision.
config ENV_IS_IN_REMOTE
bool "Environment is in remove memory space"
depends on !CHAIN_OF_TRUST
help
Define this if you have a remote memory space which you
want to use for the local device's environment.
- CONFIG_ENV_ADDR:
- CONFIG_ENV_SIZE:
These two #defines specify the address and size of the
environment area within the remote memory space. The
local device can get the environment from remote memory
space by SRIO or PCIE links.
config ENV_IS_IN_SPI_FLASH
bool "Environment is in SPI flash"
depends on !CHAIN_OF_TRUST
default y if ARMADA_XP
default y if INTEL_BAYTRAIL
default y if INTEL_BRASWELL
default y if INTEL_BROADWELL
default y if NORTHBRIDGE_INTEL_IVYBRIDGE
default y if INTEL_QUARK
default y if INTEL_QUEENSBAY
help
Define this if you have a SPI Flash memory device which you
want to use for the environment.
- CONFIG_ENV_OFFSET:
- CONFIG_ENV_SIZE:
These two #defines specify the offset and size of the
environment area within the SPI Flash. CONFIG_ENV_OFFSET must be
aligned to an erase sector boundary.
- CONFIG_ENV_SECT_SIZE:
Define the SPI flash's sector size.
- CONFIG_ENV_OFFSET_REDUND (optional):
This setting describes a second storage area of CONFIG_ENV_SIZE
size used 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. CONFIG_ENV_OFFSET_REDUND must be
aligned to an erase sector boundary.
- CONFIG_ENV_SPI_BUS (optional):
- CONFIG_ENV_SPI_CS (optional):
Define the SPI bus and chip select. If not defined they will be 0.
- CONFIG_ENV_SPI_MAX_HZ (optional):
Define the SPI max work clock. If not defined then use 1MHz.
- CONFIG_ENV_SPI_MODE (optional):
Define the SPI work mode. If not defined then use SPI_MODE_3.
config ENV_IS_IN_UBI
bool "Environment in a UBI volume"
depends on !CHAIN_OF_TRUST
help
Define this if you have an UBI volume that you want to use for the
environment. This has the benefit of wear-leveling the environment
accesses, which is important on NAND.
- CONFIG_ENV_UBI_PART:
Define this to a string that is the mtd partition containing the UBI.
- CONFIG_ENV_UBI_VOLUME:
Define this to the name of the volume that you want to store the
environment in.
- CONFIG_ENV_UBI_VOLUME_REDUND:
Define this to the name of another volume to store a second copy of
the environment in. This will enable redundant environments in UBI.
It is assumed that both volumes are in the same MTD partition.
- CONFIG_UBI_SILENCE_MSG
- CONFIG_UBIFS_SILENCE_MSG
You will probably want to define these to avoid a really noisy system
when storing the env in UBI.
config ENV_FAT_INTERFACE
string "Name of the block device for the environment"
depends on ENV_IS_IN_FAT
default "mmc" if ARCH_SUNXI
default "mmc" if TI_COMMON_CMD_OPTIONS || ARCH_ZYNQMP || ARCH_AT91
help
Define this to a string that is the name of the block device.
config ENV_FAT_DEVICE_AND_PART
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_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" if ARCH_AT91
help
Define this to a string to specify the partition of the device. It can
be as following:
"D:P", "D:0", "D", "D:" or "D:auto" (D, P are integers. And P >= 1)
- "D:P": device D partition P. Error occurs if device D has no
partition table.
- "D:0": device D.
- "D" or "D:": device D partition 1 if device D has partition
table, or the whole device D if has no partition
table.
- "D:auto": first partition in device D with bootable flag set.
If none, first valid partition in device D. If no
partition table then means device D.
config ENV_FAT_FILE
string "Name of the FAT file to use for the environemnt"
depends on ENV_IS_IN_FAT
default "uboot.env"
help
It's a string of the FAT file name. This file use to store the
environment.
config ENV_EXT4_INTERFACE
string "Name of the block device for the environment"
depends on ENV_IS_IN_EXT4
help
Define this to a string that is the name of the block device.
config ENV_EXT4_DEVICE_AND_PART
string "Device and partition for where to store the environemt in EXT4"
depends on ENV_IS_IN_EXT4
help
Define this to a string to specify the partition of the device. It can
be as following:
"D:P", "D:0", "D", "D:" or "D:auto" (D, P are integers. And P >= 1)
- "D:P": device D partition P. Error occurs if device D has no
partition table.
- "D:0": device D.
- "D" or "D:": device D partition 1 if device D has partition
table, or the whole device D if has no partition
table.
- "D:auto": first partition in device D with bootable flag set.
If none, first valid partition in device D. If no
partition table then means device D.
config ENV_EXT4_FILE
string "Name of the EXT4 file to use for the environemnt"
depends on ENV_IS_IN_EXT4
default "uboot.env"
help
It's a string of the EXT4 file name. This file use to store the
environment (explicit path to the file)
if ARCH_SUNXI
config ENV_OFFSET
hex "Environment Offset"
depends on !ENV_IS_IN_UBI
depends on !ENV_IS_NOWHERE
default 0x88000 if ARCH_SUNXI
help
Offset from the start of the device (or partition)
config ENV_SIZE
hex "Environment Size"
depends on !ENV_IS_NOWHERE
default 0x20000 if ARCH_SUNXI
help
Size of the environment storage area
config ENV_UBI_PART
string "UBI partition name"
depends on ENV_IS_IN_UBI
help
MTD partition containing the UBI device
config ENV_UBI_VOLUME
string "UBI volume name"
depends on ENV_IS_IN_UBI
help
Name of the volume that you want to store the environment in.
endif
if ARCH_ROCKCHIP
config ENV_OFFSET
hex
depends on !ENV_IS_IN_UBI
depends on !ENV_IS_NOWHERE
default 0x3f8000
help
Offset from the start of the device (or partition)
config ENV_SIZE
hex
default 0x8000
help
Size of the environment storage area
endif
endmenu
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