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* env: Remove useless CONFIG_ENV_SIZE_REDUND and fix ENV_IS_REDUND checkTom Rini2019-11-201-1/+1
| | | | | | | | | | | | | | | We have CONFIG_ENV_SIZE_IS_REDUND but don't really use it. We have one board where we can simply multiple CONFIG_ENV_SIZE by two for the same result. The other place where we could but were not previously using this is for where env_internal.h checks for if we should set ENV_IS_EMBEDDED. This seems like the most likely use, historically, of the variable, but it was not used. Add logic to check for this now. Cc: Wolfgang Denk <wd@denx.de> Cc: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
* env: Rename environment.h to env_internal.hSimon Glass2019-08-111-1/+1
| | | | | | | | | | | | | | 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>
* env: Move get/set_default_env() to env.hSimon Glass2019-08-111-1/+2
| | | | | | | | 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>
* env: sata: Fix saveenv issueYe Li2019-01-091-1/+1
| | | | | | | Wrong env buffer was passed into sata write function, cause the saveenv not work. Signed-off-by: Ye Li <ye.li@nxp.com>
* env: common: accept flags on reset to default envYaniv Levinsky2018-07-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini2018-05-071-2/+1
| | | | | | | | | | | | | | | | | | | | 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>
* Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTRTom Rini2018-04-271-2/+0
| | | | | | | | 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>
* env: make env drivers propagate env_import return valueSimon Goldschmidt2018-02-011-3/+1
| | | | | | | | | | | | | | 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>
* env: Adjust the load() method to return an errorSimon Glass2017-08-161-6/+9
| | | | | | | | | | | 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>
* env: Drop the env_name_spec globalSimon Glass2017-08-151-2/+1
| | | | | | | | 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>
* env: Drop common init() functionsSimon Glass2017-08-151-10/+0
| | | | | | | | | 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>
* env: Switch over to use environment location driversSimon Glass2017-08-151-7/+6
| | | | | | | | 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>
* env: Create a location driver for each locationSimon Glass2017-08-151-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* env: Add an enum for environment stateSimon Glass2017-08-151-1/+1
| | | | | | | | 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>
* Move environment files from common/ to env/Simon Glass2017-08-151-0/+127
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>