Now that we have everything in place to implement the transition scheme,
let's enable it by default.
Reviewed-by: NAndre Przywara <andre.przywara@arm.com>
Reviewed-by: NLukasz Majewski <lukma@denx.de>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

Now that we have everything in place in the code, let's allow to build
multiple environments backend through Kconfig.
Reviewed-by: NAndre Przywara <andre.przywara@arm.com>
Reviewed-by: NLukasz Majewski <lukma@denx.de>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

The raw MMC environment directly calls into the MMC framework. Make sure
it's enabled before we can select it.
Reviewed-by: NSimon Glass <sjg@chromium.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: NJaehoon Chung <jh80.chung@samsung.com>

Make it select FS_FAT as well, because if it's not selected, enabling
ENV_IS_IN_FAT causes a Kconfig warning:

warning: (ENV_IS_IN_FAT) selects FAT_WRITE which has unmet direct dependencies (FS_FAT)

This also allows dropping some code from config_fallbacks.

Also drop the unnecessary help text about having to enable
CONFIG_FAT_WRITE - Kconfig automatically handles that.
Signed-off-by: NTuomas Tynkkynen <tuomas@tuxera.com>

For example to store the environment in a file named "/uboot.env" in MMC
"0", where partition "1" contains the EXT4 filesystem, the following
configs should be added to the board's default config:

  CONFIG_ENV_IS_IN_EXT4=y
  CONFIG_ENV_EXT4_DEVICE_AND_PART="0:1"
  CONFIG_ENV_EXT4_FILE="/uboot.env"
  CONFIG_ENV_EXT4_INTERFACE="mmc"
Signed-off-by: NJorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
[trini: Fix some line over 80 chars issues]
Signed-off-by: NTom Rini <trini@konsulko.com>

This commit adds ENV_SIZE and ENV_OFFSET configuration items for
ARCH_ROCKCHIP, but keeps these non-visible (i.e. not prompt is given).
With these new items present, the configuration from the header files
is moved to Kconfig.

Keeping these non-visible is necessary to have the possibility to
select new default values if CONFIG_IS_IN_* is changed (interactively
or with oldconfig). Otherwise it will always be set to a previous
value if used with a prompt.  As an example if we do a defconfig with
CONFIG_IS_IN_MMC and change it to CONFIG_IS_IN_SPI_FLASH via
menuconfig, ENV_SIZE and ENV_OFFSET will not be changed to the correct
values as defconfig will already have set them to the default values
of CONFIG_IS_IN_MMC in .config.
Signed-off-by: NKlaus Goger <klaus.goger@theobroma-systems.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

This support has been deprecated since v2017.09 due to security issues.
We now remove this support.
Signed-off-by: NTom Rini <trini@konsulko.com>

Imply does not work for a Kconfig choice. Update ENV_IS_IN_SPI_FLASH
to be the default one for Intel Braswell.
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Last user of this option went away in commit:

fdc77189 ("board: usb_a9263: Update to support DT and DM")
Signed-off-by: NTuomas Tynkkynen <tuomas.tynkkynen@iki.fi>

The non-volatile storage varies board by board.  The default should
be NOWHERE.  Please choose a proper device via Kconfig.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

The underlying implementation for ENV_AES has security complications and
is not recommended for use.  Please see CVE-2017-3225 and CVE-2017-3226
for more details.  Mark this as deprecated now and delete this in the
medium term if no one comes forward to re-work the support.
Signed-off-by: NTom Rini <trini@konsulko.com>

Add the following options to drivers/misc/Kconfig:
	SYS_I2C_EEPROM_ADDR
	SYS_I2C_EEPROM_BUS
	SYS_EEPROM_SIZE
	SYS_EEPROM_PAGE_WRITE_BITS
	SYS_EEPROM_PAGE_WRITE_DELAY_MS
	SYS_I2C_EEPROM_ADDR_LEN
	SYS_I2C_EEPROM_ADDR_OVERFLOW

This does not migrate any boards, but provides a foundations for
those who want/need these options
Signed-off-by: NAdam Ford <aford173@gmail.com>
[trini: Migrate uniphier]
Signed-off-by: NTom Rini <trini@konsulko.com>

It would be easier to catch out which platform is using which default.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

At present we support multiple environment drivers but there is not way to
select between them at run time. Also settings related to the position and
size of the environment area are global (i.e. apply to all locations).

Until these limitations are removed we cannot really support more than one
environment location. Adjust the location to be a choice so that only one
can be selected. By default the environment is 'nowhere', meaning that the
environment exists only in memory and cannot be saved.

Also expand the help for the 'nowhere' option and move it to the top since
it is the default.
Signed-off-by: NSimon Glass <sjg@chromium.org>
[trini: Move all of the imply logic to default X if Y so it works again]
Signed-off-by: NTom Rini <trini@konsulko.com>

Tidy up the formatting of this option.
Signed-off-by: NSimon Glass <sjg@chromium.org>

About a quarter of the files in common/ relate to the environment. It
seems better to put these into their own subdirectory and remove the
prefix.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NTom Rini <trini@konsulko.com>