At present U-Boot environment variables, and thus scripts, are defined
by CONFIG_EXTRA_ENV_SETTINGS. It is painful to add large amounts of text
to this file and dealing with quoting and newlines is harder than it
should be. It would be better if we could just type the script into a
text file and have it included by U-Boot.
Add a feature that brings in a .env file associated with the board
config, if present. To use it, create a file in a board/<vendor>
directory, typically called <board>.env and controlled by the
CONFIG_ENV_SOURCE_FILE option.
The environment variables should be of the form "var=value". Values can
extend to multiple lines. See the README under 'Environment Variables:'
for more information and an example.
In many cases environment variables need access to the U-Boot CONFIG
variables to select different options. Enable this so that the environment
scripts can be as useful as the ones currently in the board config files.
This uses the C preprocessor, means that comments can be included in the
environment using /* ... */
Also support += to allow variables to be appended to. This is needed when
using the preprocessor.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Marek Behún <marek.behun@nic.cz>
Instead of pretending that we don't have environment to force searching
default environment in env_get_default(), get the data from the
default_environment[] buffer directly.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
The env_get_f() function returns -1 on failure. Returning 0 means that
the variable exists, and is empty string.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
Do not set GD_FLG_ENV_READY nor GD_FLG_ENV_DEFAULT if failed importing
in env_set_default().
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
Check sizeof(default_environment) against ENV_SIZE in a static_assert()
instead of runtime.
Only check if !USE_HOSTCC (for in fw_env tool ENV_SIZE expands to a
variable, and cannot be checked statically) nad
!DEFAULT_ENV_INSTANCE_EMBEDDED, for in that case the default_environment
variable is not set.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
Sometimes we use uchar and sometimes char for the default environment
array. By always using char, we can get rid of some explicit casts.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
env_flash_init() (both implementations) assigns default environment if
ENV_INVALID, but this is done in the generic env_init() function, which
calls this initializer, so drop it from here.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
Use spaces instead of tabs in assignments, since there are no lines to
align assignment values to.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
env_nowhere_init() assigns default environment if ENV_INVALID, but this
is done in the generic env_init() function, which calls this
initializer, so drop it from here.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
env_nvram_init() assigns default environment if ENV_INVALID, but this is
done in the generic env_init() function, which calls this initializer,
so drop it from here.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
env_nand_init() says the environment is valid even if it is assigning
default environment due to not being able to access nand pre-reloaction
(determined by macro values). Change this to ENV_INVALID and let the
generic env_init() function, which calls this initializer, assign the
default environment.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
env_sf_init_addr() says the environment is valid even if it is assigning
default environment due to CRC failure. Change this to ENV_INVALID and
let the generic env_init() function, which calls this initializer,
assign the default environment.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
The function env_sf_init_addr() assigns number literals (1) instead of
ENV_VALID to gd->env_valid. Fix this.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
In the if clause we use tabs and in the else clause spaces. Let's use
spaces in the if clause too.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
Free() checks if its argument in NULL. There is no need for the caller to
do the same.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Currently the MMC environment driver supports storing redundant environment
only in one eMMC partition at different offsets. This is sub-optimal, since
if this one boot partition is erased, both copies of environment are lost.
Since the eMMC has two boot partitions, add support for storing one copy of
environment in each of the two boot partitions.
To enable this functionality, select CONFIG_SYS_REDUNDAND_ENVIRONMENT to
indicate redundant environment should be used. Set CONFIG_SYS_MMC_ENV_PART
to 1 to indicate environment should be stored in eMMC boot partition. Set
CONFIG_ENV_OFFSET equal to CONFIG_ENV_OFFSET_REDUND, and both to the offset
from start of eMMC boot partition where the environment should be located.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
If the environment is stored in eMMC hardware boot partition, the environment
driver first stores the currently selected eMMC boot partition, then does the
requested operation, and then restores the original boot partition settings.
In case the environment operation fails, the boot partition settings are also
restored.
The 'env erase' implementation in the MMC environment driver lacks the path
which restores the boot partition. This could lead to various failure modes,
like the system boots the wrong copy of bootloader etc. Fix this by filling
in the missing restoration path.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
The original purpose of mtd_erase_callback() in Linux at the time it was
imported to U-Boot, was to inform the caller that erasing is done (since
it was an asynchronous operation).
All supplied callback methods in U-Boot do nothing, but the
mtd_erase_callback() function was (until previous patch) grossly abused
in U-Boot's mtdpart implementation for completely different purpose.
Since we got rid of the abusement, remove the mtd_erase_callback()
function and the .callback member from struct erase_info entirely, in
order to avoid such problems in the future.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Move the following functions from cmd/nvedit.c to env/common.c:
env_set_ulong()
env_set_hex()
env_get_hex()
eth_env_get_enetaddr()
eth_env_set_enetaddr()
env_get()
from_env()
env_get_f()
env_get_ulong()
since these functions are not specific for U-Boot's CLI.
We leave env_set() in cmd/nvedit.c, since it calls _do_env_set(), which
is a static function in that file.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
This function is a relic from the past when environment was read from
underlying device one character at a time.
It is used only in the case when getting an environemnt variable prior
relocation, and the function is simple enough to be inlined there.
Since env_get_char() is being changed to simple access to an array, we
can drop the failing cases and simplify the code (this could have been
done before, since env_get_char() did not fail even before).
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
Commit b2cdef4861 ("env: restore old env_get_char() behaviour")
dropped the .get_char() method from struct env_driver, but left the two
existing implementations (eeprom and nvram) in case someone would use
them by overwriting weak function env_get_char_spec().
Since this was never done in the 3.5 years, let's drop these methods and
simplify the code.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
The current API is outdated as it requires a devicetree pointer.
Move these functions to use the ofnode API and update this globally. Add
some tests while we are here.
Correct the call in exynos_dsim_config_parse_dt() which is obviously
wrong.
Signed-off-by: Simon Glass <sjg@chromium.org>
Avoid applying the "fix" introduced by commit 5557eec01c ("env: Fix
invalid env handling in env_init()") to the environment "nowhere".
This is necessary as that commit, by setting the return value of
env_init() to -ENOENT if gd->env_valid is ENV_INVALID, forces that
function to reset gd->env_valid to ENV_VALID. By doing so, it breaks the
assumption (required by ENV_IS_NOWHERE) that gd->env_valid must be
ENV_INVALID.
This, in turn, results in env_relocate() calling env_load() (it should
not), which itself, calls U_BOOT_ENV_LOCATION(nowhere).load() i.e.
env_nowhere_load(). That function, being implemented under the
assumption mentioned above, calls env_set_default(), which in turn,
seeing that gd->env_valid is ENV_VALID (it should not), tries to
dereference whatever lies in gd->env_addr (most likely garbage), leading
to a faulty memory access.
Note that other env_locations might be concerned by this bug but that
this commit only intends to fix it for when ENV_IS_NOWHERE.
Fixes: 5557eec01c ("env: Fix invalid env handling in env_init()")
Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
default n/no doesn't need to be specified. It is default option anyway.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
[trini: Rework FSP_USE_UPD portion]
Signed-off-by: Tom Rini <trini@konsulko.com>
- Rename usages of CONFIG_SYS_DEF_EEPROM_ADDR to CONFIG_SYS_I2C_EEPROM_ADDR
based on current usage.
- Convert CONFIG_SYS_I2C_EEPROM_ADDR, CONFIG_SYS_I2C_EEPROM_ADDR_LEN,
CONFIG_SYS_I2C_EEPROM_BUS, CONFIG_CONFIG_SYS_EEPROM_SIZE
CONFIG_SYS_EEPROM_PAGE_WRITE_BITS and CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS
to Kconfig. We move these symbols around a bit and add appropriate
dependencies to them. In some cases, we now add a correct default value
as well.
Signed-off-by: Tom Rini <trini@konsulko.com>
At this point in time, there's no systems with "U-Boot environment
exists on an EEPROM which is accessed over the I2C bus" that sets this
option. Drop it.
Signed-off-by: Tom Rini <trini@konsulko.com>
Add PHY_CORTINA as default option in SYS_MMC_ENV_DEV Kconfig entry as
PHY_CORTINA require SYS_MMC_ENV_DEV value similar to FMAN_ENET or QE.
This helps in resolving compilation failure.
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Currently, the environment is always stored in eMMC if eMMC is enabled
in the config. This means images written to SD and eMMC will cross-
contaminate their environments unless the configuration is changed.
By dropping the device number from the environment location string and
implementing mmc_get_env_dev, we will always use the environment from
the boot device when booting from SD/eMMC.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
This board has not been converted to CONFIG_DM_PCI by the deadline and is
also missing conversion to CONFIG_DM. Remove it. This is also the last
of the ARCH_MPC8641/MPC8610 platforms, so remove that support as well.
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Priyanka Jain <priyanka.jain@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
These boards have not been converted to CONFIG_DM_PCI by the deadline and is
also missing conversion to CONFIG_DM. Remove them. As this includes
the last ARCH_MPC8572 platform, remove that as well.
Cc: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Peter Tyser <ptyser@xes-inc.com>
These board has not been converted to CONFIG_DM_PCI by the deadline.
Remove them. As this is the last of the mcf547x_8x family of boards,
remove that support as well.
Cc: TsiChung Liew <Tsi-Chung.Liew@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
It can be useful to use the same U-Boot binary for multiple purposes,
say the normal one, one for developers that allow breaking into the
U-Boot shell, and one for use during bootstrapping which runs a
special-purpose bootcmd. Or one can have several board variants that
can share almost all boot logic, but just needs a few tweaks in the
variables used by the boot script.
To that end, allow the control dtb to contain a /config/enviroment
node (or whatever one puts in fdt_env_path variable), whose
property/value pairs are used to update the run-time environment after
it has been loaded from its persistent location.
The indirection via fdt_env_path is for maximum flexibility - for
example, should the user wish (or board logic dictate) that the values
in the DTB should no longer be applied, one simply needs to delete the
fdt_env_path variable; that can even be done automatically by
including a
fdt_env_path = "";
property in the DTB node.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Enable saving variables to MMC(FAT) and SPI based on primary
bootmode. If bootmode is JTAG, dont save env anywhere(NOWHERE).
Enable ENV_FAT_DEVICE_AND_PART="0:auto" for Versal platforms as well.
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This variable is used for pointing to location where redundant variables
are located. There is no default value. And it doesn't need to be specified
which is showing as warning when savedefconfig is called.
make xilinx_zynqmp_virt_defconfig
#
# configuration written to .config
#
make savedefconfig
scripts/kconfig/conf --savedefconfig=defconfig Kconfig
.config:199:warning: symbol value '' invalid for ENV_OFFSET_REDUND
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
As the the SPI flash is probed and is released in each ENV sf function
the env_flash no more need to be static.
This patch move this device handle as local variable of each function and
simplify the associated code (env_flash is never == NULL when
setup_flash_device is called).
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Free the SPI resources by calling spi_flash_free() in each env sf
function to avoid issue for other SPI users.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Add support of opts erase for env in SPI flash;
this opts is used by command 'env erase'.
This command only fills the env offset by 0x0 (bit flip to 0) and
the saved environment becomes invalid (with bad CRC).
It doesn't erase the sector here to avoid issue when the sector
is larger than the env (i.e. embedded when
CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE).
The needed sector erase will be managed in the next "env save" command,
using the opt ".save", before to update the environment in SPI flash.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Add ENV_ERASE_PTR macro to handle erase opts and remove the associated
ifdef.
This patch is a extension of previous commit 82b2f41357 ("env_internal.h:
add alternative ENV_SAVE_PTR macro").
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
This fixes the case where there are multiple environment drivers, one of
them is the default environment one, and it is followed by an environment
driver which does not implement .init() callback. The default environment
driver sets gd->env_valid to ENV_INVALID and returns 0 from its .init()
callback implementation, which is valid behavior for default environment.
Since the subsequent environment driver does not implement .init(), it
also does not modify the $ret variable in the loop. Therefore, the loop
is exited with gd->env_valid=ENV_INVALID and ret=0, which means that the
code further down in env_init() will not reset the environment to the
default one, which is incorrect.
This patch sets the $ret variable back to -ENOENT in case the env_valid
is set to ENV_INVALID by an environment driver, so that the environment
would be correctly reset back to default one, unless a subsequent driver
loads a valid environment.
Signed-off-by: Marek Vasut <marex@denx.de>
Tested-By: Tim Harvey <tharvey@gateworks.com>
Since commit 0f036bf4b8 ("env: Warn on force access if ENV_ACCESS_IGNORE_FORCE set")
a warning message is displayed when setenv -f is used WITHOUT
CONFIG_ENV_ACCESS_IGNORE_FORCE, but the variable is set anyway, resulting
in lots of log pollution.
env_flags_validate() returns 0 if the access is accepted, or non zero
if it is refused.
So the original code
#ifndef CONFIG_ENV_ACCESS_IGNORE_FORCE
if (flag & H_FORCE)
return 0;
#endif
was correct, it returns 0 (accepts the modification) if forced UNLESS
IGNORE_FORCE is set (in which case access checks in the following code
are applied). The broken patch just added a printf to the force accepted
case.
To obtain the intent of the patch we need this:
if (flag & H_FORCE) {
#ifdef CONFIG_ENV_ACCESS_IGNORE_FORCE
printf("## Error: Can't force access to \"%s\"\n", name);
#else
return 0;
#endif
}
Fixes: 0f036bf4b8 ("env: Warn on force access if ENV_ACCESS_IGNORE_FORCE set")
Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
If one of the reads fails when importing redundant environments (a
single read failure), the env_flags wouldn't get initialized in
env_import_redund(). If a user then calls saveenv, the new environment
will have the wrong flags value. So on the next load the new environment
will be ignored.
While debugging this, I also noticed that env/sf.c was not correctly
handling a single read failure, as it would not check the crc before
assigning it to gd->env_addr.
Having a special error path for when there is a single read failure
seems unnecessary and may lead to future bugs. Instead collapse the
'single read failure' error to be the same as a 'single crc failure'.
That way env_check_redund() either passes or fails, and if it passes we
are guaranteed to have checked the CRC.
Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com>
CC: Joe Hershberger <joe.hershberger@ni.com>
CC: Wolfgang Denk <wd@denx.de>
CC: Heiko Schocher <hs@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
This is roughly the U-Boot side equivalent to commit
e282c422e0 (tools: fw_env: use erasesize from MEMGETINFO ioctl). The
motivation is the case where one has a board with several revisions,
where the SPI flashes have different erase sizes.
In our case, we have an 8K environment, and the flashes have erase
sizes of 4K (newer boards) and 64K (older boards). Currently, we must
set CONFIG_ENV_SECT_SIZE to 64K to make the code work on the older
boards, but for the newer ones, that ends up wasting quite a bit of
time reading/erasing/restoring the last 56K.
At first, I wanted to allow setting CONFIG_ENV_SECT_SIZE to 0 to mean
"use the erase size the chip reports", but that config
option is used in a number of preprocessor conditionals, and shared
between ENV_IS_IN_FLASH and ENV_IS_IN_SPI_FLASH.
So instead, introduce a new boolean config option, which for now can
only be used with ENV_IS_IN_SPI_FLASH. If left off, there's no change
in behaviour.
The only slightly annoying detail is that, when selected, the compiler
is apparently not smart enough to see that the the saved_size and
saved_offset variables are only used under the same "if (sect_size >
CONFIG_ENV_SIZE)" condition as where they are computed, so we need to
initialize them to 0 to avoid "may be used uninitialized" warnings.
On our newer boards with the 4K erase size, saving the environment now
takes 0.080 seconds instead of 0.53 seconds, which directly translates
to that much faster boot time since our logic always causes the
environment to be written during boot.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
As preparation for the next patch, use a local variable to represent
the sector size. No functional change.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
