The env_fat_get_dev_part() function mostly returns a fixed string, set
via some Kconfig variable. However when the first character is a colon,
that means that the boot device number is determined at runtime, and
patched in. This requires altering the string.
So far this was done via some ugly and actually illegal direct write to
the .rodata string storage. We got away with this because U-Boot maps
everything as read/write/execute so far.
A proposed patch set actually enforces read-only (and no-execute)
permissions in the page tables, so this routine now causes an exception:
=======================
Loading Environment from FAT... "Synchronous Abort" handler, esr 0x9600004f, far 0xfffb7d4c
elr: 000000004a054228 lr : 000000004a05421c (reloc)
elr: 00000000fff7c228 lr : 00000000fff7c21c
.....
=======================
Rewrite the routine to do away with the dodgy string manipulation,
instead allocate the string in the r/w .data section, where we can
safely manipulate it.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Complete this rename for all directories outside arch/ board/ drivers/
and include/
Use the new symbol to refer to any 'SPL' build, including TPL and VPL
Signed-off-by: Simon Glass <sjg@chromium.org>
As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.
Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.
This reverts commit c8ffd1356d, reversing
changes made to 2ee6f3a5f7.
Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
Specifying a file in an EXT4 or FAT partition on a virtio device as
environment location failed because virtio hadn't been initialized by
the time the environment was loaded. This patch mirrors commit
54ee5ae841 ("Add SCSI scan for ENV in EXT4 or FAT") in issue and
fix, just for a different kind of block device.
The additional include in include/virtio.h is needed so all functions
called there are defined, the alternative would have been to include
dm/device.h separately in the env/ sources.
Checkpatch suggests using "if (IS_ENABLED(CONFIG...))" instead of
"#if defined(CONFIG_...)", I'm sticking to the style of the existing
code here.
Signed-off-by: Fiona Klute <fiona.klute@gmx.de>
CC: Joe Hershberger <joe.hershberger@ni.com>
CC: Bin Meng <bmeng.cn@gmail.com>
CC: Rogier Stam <rogier@unrailed.org>
When having environment stored in EXT4 or FAT
and using an AHCI or SCSI device / partition
the scan would not be performed early enough
and hence the device would not be recognized.
This change adds the scan when the interface
is "scsi" in a similar way to mmc_initialize.
Signed-off-by: Rogier Stam <rogier@unrailed.org>
Reviewed-by: Pali Rohár <pali@kernel.org>
For platform which can boot on different device, this allows
to override interface, device and partition from board code
Signed-off-by: He Yong <hyyoxhk@163.com>
Add some new line feeds at the end of print messages to make things
easier to read on the console. The other env options do this so
this is just an omission for FAT env.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Since it's so trivial I could just about tolerate this when there were only
two copies of it. But now there are about to be three.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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>
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>
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>
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>
This file contains lots of internal details about the environment. Most
code can include env.h instead, calling the functions there as needed.
Rename this file and add a comment at the top to indicate its internal
nature.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
[trini: Fixup apalis-tk1.c]
Signed-off-by: Tom Rini <trini@konsulko.com>
Move these functions to the new header file and rename set_default_env()
to env_set_default() so that it has a consistent env_ prefix.
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
The function set_default_env() sets the hashtable flags for import_r().
Formally set_default_env() doesn't accept flags from its callers. In
practice the caller can (un)set the H_INTERACTIVE flag, but it has to be
done using the first character of the function's string argument. Other
flags like H_FORCE can't be set by the caller.
Change the function to accept flags argument. The benefits are:
1. The caller will have to explicitly set the H_INTERACTIVE flag,
instead of un-setting it using a special char in a string.
2. Add the ability to propagate flags from the caller to himport(),
especially the H_FORCE flag from do_env_default() in nvedit.c that
currently gets ignored for "env default -a -f" commands.
3. Flags and messages will not be coupled together. A caller will be
able to set flags without passing a string and vice versa.
Please note:
The propagation of H_FORCE from do_env_default() does not introduce any
functional changes, because currently himport_r() is set to destroy the
old environment regardless if H_FORCE flag is set or not. More changes
are needed to utilize the propagation of H_FORCE.
Signed-off-by: Yaniv Levinsky <yaniv.levinsky@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.
Signed-off-by: Tom Rini <trini@konsulko.com>
For CONFIG_ENV_FAT_INTERFACE != 'mmc' a link error
env/fat.c:93: undefined reference to `mmc_initialize'
occurs if CONFIG_MMC_SUPPORT is not enabled.
Fixes: 26862b4a40 ("env: mmc/fat/ext4: make sure that the MMC sub-system
is initialized before using it")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
When booting from a non-MMC device, the MMC sub-system may not be
initialized when the environment is first accessed.
We need to make sure that the MMC sub-system is ready in even a non-MMC
boot case.
Therefore, initialize mmc before loading environment from it.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
When saving the environment on a platform which has DMA alignment
larger than the natural alignment, env_fat_save triggers a debug
message in file_fat_write:
Saving Environment to FAT... writing uboot.env
FAT: Misaligned buffer address (9df1c8e0)
OK
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
For multiple env drivers to correctly implement fallback when
one environment fails to load (e.g. crc error), the return value
of env_import has to be propagated by all env driver's load
function.
Without this change, the first driver that succeeds to load an
environment with an invalid CRC return 0 (success) and no other
drivers are checked.
Signed-off-by: Simon Goldschmidt <sgoldschmidt@de.pepperl-fuchs.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Since we have global messages to indicate what's going on, the custom
messages in the environment drivers only make the output less readable.
Make FAT play a little nicer by removing all the extra \n and formatting
that is redundant with the global output.
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
The load() methods have inconsistent behaviour on error. Some of them load
an empty default environment. Some load an environment containing an error
message. Others do nothing.
As a step in the right direction, have the method return an error code.
Then the caller could handle this itself in a consistent way.
Signed-off-by: Simon Glass <sjg@chromium.org>
This variable is declared as a global in most environment location
drivers. But it is not used outside the drivers and most of the
declarations are unnecessary.
Also some drivers call free() on env_ptr which seems wrong since it is
not in the heap.
Drop the variable where possible, and all calls to free().
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Add a name to the driver and use that instead of the global variable
declared by each driver.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Most of the init() implementations just use the default environment.
Adjust env_init_new() to do this automatically, and drop the redundant
code.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Move over to use a the master implementation of the location drivers, with
each method calling out to the appropriate driver.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Set up a location driver for each supported environment location. At
present this just points to the global functions and is not used. A
later patch will switch this over to use private functions in each driver.
There are several special cases here in various drivers to handle
peculiarities of certain boards:
1. Some boards define CONFIG_ENV_IS_IN_FAT and CONFIG_SPL_ENV_SUPPORT but
do not actually load the environment in SPL. The env load code was
optimised out before but with the driver, it is not. Therefore a special
case is added to env/fat.c. The correct fix (depending on board testing
might be to disable CONFIG_SPL_ENV_SUPPORT.
2. A similar situations happens with CONFIG_ENV_IS_IN_FLASH. Some boards
do not actually load the environment in SPL, so to reduce code size we
need to drop that code. A similar fix may be possible with these boards,
or it may be possible to adjust the environment CONFIG settings.
Added to the above is that the CONFIG_SPL_ENV_SUPPORT option does not
apply when the environment is in flash.
Obviously the above has been discovered through painful and time-consuming
trial and error. Hopefully board maintainers can take a look and figure
out what is actually needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present we have three states for the environment, numbered 0, 1 and 2.
Add an enum to record this to avoid open-coded values.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
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: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
