This option marks any U-Boot variable which does not have explicit 'w'
writeable flag set as read-only. This way the environment can be locked
down and only variables explicitly configured to be writeable can ever
be changed by either 'env import', 'env set' or loading user environment
from environment storage.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Add configuration option which prevents the environment hash table to be
ever cleared and reloaded with different content. This is useful in case
the first environment loaded into the hash table contains e.g. sensitive
content which must not be dropped or reloaded.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Add another custom environment flag which discerns environment coming
from external storage from environment set by U-Boot itself.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Add another internal environment flag which indicates that the operation
is resetting the environment to the default one. This allows the env code
to discern between import of external environment and reset to default.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
If the ENV_ACCESS_IGNORE_FORCE is set, inform user that the variable
cannot be force-set if such attempt happens.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Add support of opts erase for env in ext4,
this opts is used by command 'env erase'.
This command only fill the env file (CONFIG_ENV_EXT4_FILE)
with 0, the CRC and the saved environment becomes invalid.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Add the new command 'env select' to force the persistent storage
of environment, saved in gd->env_load_prio.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Add the new command env load to load the environment from
the current location gd->env_load_prio.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
The ops driver load becomes mandatory in struct env_drive,
change the comment for this ops and remove unnecessary test.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Add the ops .load for nowhere ENV backend to load the
default environment.
This ops is needed for the command 'env load'
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Only update gd->env_load_prio in generic function env_load()
and no more in the weak function env_get_location() which is
called in many place (for example in env_driver_lookup, even
for ENVOP_SAVE operation).
This patch is a preliminary step to use env_driver_lookup()/
env_get_location() in new function env_select() without
updating gd->env_load_prio.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Add a missing initialization of gd->env_valid in env_ext4_load
as it is already done in some other env device.
Set gd->env_valid = ENV_VALID in env_ext4_save() and env_ext4_load().
This patch allows to have a correct information in 'env info' command.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Add the absolute path to the default value of
CONFIG_ENV_EXT4_FILE = "/uboot.env".
This patch avoid the error :
Saving Environment to EXT4... File System is consistent
Please supply Absolute path
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This converts the following to Kconfig:
CONFIG_ENV_OVERWRITE
Signed-off-by: Adam Ford <aford173@gmail.com>
[trini: Rerun migration, remove some comments]
Signed-off-by: Tom Rini <trini@konsulko.com>
Manage 2 copy at the end of the partition selected by config
"u-boot,mmc-env-partition" to save the U-Boot environment,
with CONFIG_ENV_SIZE and 2*CONFIG_ENV_SIZE offset.
This patch allows to support redundancy (CONFIG_ENV_OFFSET_REDUND).
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
The output of the function mmc_offset_try_partition must be a
byte offset in mmc and not a multiple of blksz.
This function is used in mmc_offset(), called by mmc_get_env_addr()
and the offset is used in write_env(), erase_env() and read_env().
In these function, blk_start = offset / mmc->read_bl_len
or /write_bl_len so this offset is not a multiple of blksz.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Use the weak function mmc_get_env_dev in mmc_offset_try_partition
function to allow dynamic selection of mmc device to use
and no more use directly the define CONFIG_SYS_MMC_ENV_DEV.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Add trace in env save to indicate any errors to end user and avoid
silent output when the command 'env save' is not executed.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Correct the overflow check of the bit-field env_has_init with
the max value of env_location= ENVL_COUNT and no more with the
size of env_locations.
This bit-field is indexed by this enumerate and not by the position in
the env_locations (only used in env_get_location) and the
2 values are different, depending of thea ctivated CONFIG_ENV_IS_ options.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
I don't want to have to specify the device; only the partition.
This allows me to use the same image on internal eMMC or SD card for
Banana Pi R2, and it finds its own environment either way.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
[trini: Add #if/#else/#endif logic around CONFIG_SYS_MMC_ENV_DEV usage,
whitespace changes]
Signed-off-by: Tom Rini <trini@konsulko.com>
This change allows more fine tuning of driver model based SPI support in
SPL and TPL. It is now possible to explicitly enable/disable the DM_SPI
support in SPL and TPL via Kconfig option.
Before this change it was necessary to use:
/* SPI Flash Configs */
#if defined(CONFIG_SPL_BUILD)
#undef CONFIG_DM_SPI
#undef CONFIG_DM_SPI_FLASH
#undef CONFIG_SPI_FLASH_MTD
#endif
in the ./include/configs/<board>.h, which is error prone and shall be
avoided when we strive to switch to Kconfig.
The goal of this patch:
Provide distinction for DM_SPI support in both U-Boot proper and SPL (TPL).
Valid use case is when U-Boot proper wants to use DM_SPI, but SPL must
still support non DM driver.
Another use case is the conversion of non DM/DTS SPI driver to support
DM/DTS. When such driver needs to work in both SPL and U-Boot proper, the
distinction is needed in Kconfig (also if SPL version of the driver
supports OF_PLATDATA).
In the end of the day one would have to support following use cases (in
single driver file - e.g. mxs_spi.c):
- U-Boot proper driver supporting DT/DTS
- U-Boot proper driver without DT/DTS support (deprecated)
- SPL driver without DT/DTS support
- SPL (and TPL) driver with DT/DTS (when the SoC has enough resources to
run full blown DT/DTS)
- SPL driver with DT/DTS and SPL_OF_PLATDATA (when one have constrained
environment with no fitImage and OF_LIBFDT support).
Some boards do require SPI support (with DM) in SPL (TPL) and some only
have DM_SPI{_FLASH} defined to allow compiling SPL.
This patch converts #ifdef CONFIG_DM_SPI* to #if CONFIG_IS_ENABLED(DM_SPI)
and provides corresponding defines in Kconfig.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Tested-by: Adam Ford <aford173@gmail.com> #da850-evm
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
[trini: Fixup a few platforms]
Signed-off-by: Tom Rini <trini@konsulko.com>
Update the comment for SYS_RELOC_GD_ENV_ADDR as gd->env_addr is updated
in board_r.c::initr_reloc_global_data() under the compilation flags
CONFIG_SYS_RELOC_GD_ENV_ADDR
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
env_flash is a global flash pointer, and the probe would
happen only if env_flash is NULL, but there is no checking
and free the pointer if is not NULL.
So, this patch frees the old env_flash, and get the probed
flash in to env_flash pointer and finally check if is not NULL.
Cc: Simon Glass <sjg@chromium.org>
Cc: Vignesh R <vigneshr@ti.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
We should not be using typedefs and these make it harder to use
forward declarations (to reduce header file inclusions). Drop the typedef.
Signed-off-by: Simon Glass <sjg@chromium.org>
Move this header out of the common header. Network support is used in
quite a few places but it still does not warrant blanket inclusion.
Note that this net.h header itself has quite a lot in it. It could be
split into the driver-mode support, functions, structures, checksumming,
etc.
Signed-off-by: Simon Glass <sjg@chromium.org>
Move this uncommon header out of the common header.
Fix up some style problems in flash.h while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
Deciding whether to compile the env_sf_save() function based solely on
CONFIG_SPL_BUILD is wrong: For U-Boot proper, it leads to a build
warning in case CONFIG_CMD_SAVEENV=n (because the initialization of
the .save member is guarded by CONFIG_CMD_SAVEENV, while the
env_sf_save() function is built if !CONFIG_SPL_BUILD - and even
without the CONFIG_CMD_SAVEENV guard, the env_save_ptr() macro would
just expand to NULL, with no reference to env_sf_save visible to the
compiler). And for SPL, when one selects CONFIG_SPL_SAVEENV, one
obviously expects to actually be able to save the environment.
The compiler warning can be fixed by using a "<something> ?
env_sf_save : NULL" construction instead of a macro that just eats its
argument and expands to NULL. That way, if <something> is false,
env_sf_save gets eliminated as dead code, but the compiler still sees
the reference to it.
For <something>, we can use CONFIG_IS_ENABLED(SAVEENV), which is true
precisely:
- For U-Boot proper, when CONFIG_CMD_SAVEENV is set (because
CONFIG_SAVEENV is a hidden config symbol that gets set if and only
if CONFIG_CMD_SAVEENV is set).
- For SPL, when CONFIG_SPL_SAVEENV is set.
As a bonus, this also removes quite a few preprocessor conditionals.
This has been run-time tested on a mpc8309-derived board to verify
that saving the environment does indeed work in SPL with these patches
applied.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Deciding whether to compile the env_sf_save() function based solely on
CONFIG_SPL_BUILD is wrong: For U-Boot proper, it leads to a build
warning in case CONFIG_CMD_SAVEENV=n (because the env_save_ptr() macro
causes the function to indeed not be referenced anywhere). And for
SPL, when one selects CONFIG_SPL_SAVEENV, one obviously expects to
actually be able to save the environment.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Removing this ifdef/endif pair yields a "defined but unused warning"
for CONFIG_CMD_SAVEENV=n, but that vanishes if we use the ENV_SAVE_PTR
macro instead. This gives slightly better compile testing, and
moreover, it's possible to have
CONFIG_CMD_SAVEENV=n
CONFIG_SPL_SAVEENV=y
SPL_ENV_IS_IN_EXT4=y
in which case env_ext4_save would erroneously not be compiled in.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Always compile the env_fat_save() function, and let
CONFIG_IS_ENABLED(SAVEENV) (via the ENV_SAVE_PTR macro) decide whether
it actually ends up being compiled in.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Currently, testing whether to compile in support for saving the
environment is a bit awkward when one needs to take SPL_SAVEENV into
account, and quite a few storage drivers currently do not honour
SPL_SAVEENV.
To make it a bit easier to decide whether environment saving should be
enabled, introduce SAVEENV as an alias for the CMD_SAVEENV
symbol. Then one can simply use
CONFIG_IS_ENABLED(SAVEENV)
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
The callback member of struct env_entry is always NULL for an SPL
build. Removing it thus saves a bit of run-time memory in the
SPL (when CONFIG_SPL_ENV_SUPPORT=y) since struct env_entry is embedded
in struct env_entry_node - i.e. about 2KB for the normal case of
512+change hash table entries.
Two small fixups are needed for this, all other references to the
callback member are already under !CONFIG_SPL_BUILD: Don't initialize
.callback in set_flags() - hsearch_r doesn't use that value
anyway. And make env_callback_init() initialize ->callback to NULL for
a new entry instead of relying on an unused or deleted entry having
NULL in ->callback.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Simon Glass <sjg@chromium.org>
env.h says this about about callback declarations (U_BOOT_ENV_CALLBACK):
* For SPL these are silently dropped to reduce code size, since environment
* callbacks are not supported with SPL.
So env_callback_init() does a lot of work to not find anything in the
guaranteed empty env_clbk list. Drop callback.o entirely from the link
and stub out the only public function defined in callback.o. This cuts
about 600 bytes from the SPL on my ppc build.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Simon Glass <sjg@chromium.org>
The combination ENV_IS_IN_NVRAM=y, ENV_IS_IN_REMOTE=y fails to build:
env/remote.o:/mnt/ext4/devel/u-boot/env/remote.c:17: multiple definition of `env_ptr'
env/nvram.o:/mnt/ext4/devel/u-boot/env/nvram.c:41: first defined here
It's not necessarily a meaningful combination, but for build-testing
it's nice to be able to enable most ENV_IS_IN_* at the same time, and
since these env_ptr are not declared anywhere, they really have no
reason to have external linkage.
nand.c and flash.c similarly already define file-scope static env_ptr
variables.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
All configs are using mmc as default fat interface. That's why make it
default for everybody.
The reason for this patch is to make it default for Xilinx Zynq platform
which is not listed there.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This patch will add default values for ENV_OFFSET
and ENV_SECT_SIZE for Microblaze.
Signed-off-by: Varalaxmi Bingi <varalaxmi.bingi@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Most of the SPI flash devices in rockchip are 16MiB size.
So, keeping U-Boot proper offset start from 128MiB with 1MiB
size and then start env of 8KiB would be a compatible location
between all variants of flash sizes.
This patch add env start from 0x14000 with a size of 8KiB.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Rockchip do support SPI flash as well, so there is
a possibility of using flash environment for those
use cases.
So, restrict the current env offset, size for MMC.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
I'm also seeing the build failure that commit
7d4776545b env: solve compilation error in SPL
tried to fix, namely that the reference to env_flags_validate from
env_htab cannot be satisfied when flags.o is not built in. However,
that commit got reverted by
d90fc9c3de Revert "env: solve compilation error in SPL"
Necessary, but not sufficient conditions to see this are
CONFIG_SPL=y (obviously)
CONFIG_SPL_ENV_SUPPORT=n (so flags.o does not get compiled)
CONFIG_SPL_LIBCOMMON_SUPPORT=y (so env/built-in.o is part of the SPL link)
Now, these are satisfied for e.g. imx6q_logic_defconfig. But that
builds just fine, and spl/u-boot-spl.map lists .data.env_htab among
the discarded (garbage collected) sections. Yet, on our
mpc8309-derived board, we do see the build failure, so perhaps the
linker works a bit differently on ppc than on ARM, or there's yet some
other configuration option needed to observe the break.
This is another attempt at solving it, which also cleans up
env/Makefile a bit: Introduce a def_bool y symbol CONFIG_ENV_SUPPORT
which complements CONFIG_(SPL/TPL)_SUPPORT. Then use
CONFIG_$(SPL_TPL_)ENV_SUPPORT to decide whether to include the five
basic env/*.o files. For attr.o, flags.o and callback.o, this
shouldn't change anything. Also, common.o and env.o still get
unconditionally built for U-boot proper. But for TPL/SPL, those two
are only included if CONFIG_(SPL/TPL)_SUPPORT is set.
Having that symbol should also allow simplifying conditionals such as
#if !defined(CONFIG_SPL_BUILD) || CONFIG_IS_ENABLED(ENV_SUPPORT)
found in drivers/reset/reset-socfpga.c to just
CONFIG_IS_ENABLED(ENV_SUPPORT).
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
This function belongs more in flash.h than common.h so move it.
Also remove the space before the bracket in some calls.
Signed-off-by: Simon Glass <sjg@chromium.org>
