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2017-09-08env: Migrate CONFIG_ENV_AES to Kconfig and deprecateTom Rini
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: Tom Rini <trini@konsulko.com>
2017-09-02Kconfig: Add EEPROM options to Kconfig when I2C_EEPROM is setAdam Ford
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: Adam Ford <aford173@gmail.com> [trini: Migrate uniphier] Signed-off-by: Tom Rini <trini@konsulko.com>
2017-08-20env: Replace all open-coded gd->env_valid values with ENV_ flagsSimon Glass
Some of these were missed in the conversion. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-20env: Allow env_load() to detect errorsSimon Glass
Now that we have errors available in the environment driver's load() method, check the return valid. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-20env: Correct case of no sub-init functionTom Rini
With the change to the environment code to remove the common init stage of pointing to the default environment and setting it as valid, combined with the change to switch gd->env_valid from 0/1/2 to an enum we now must set env_valid to one of the enum values rather than an int. And in this case, not only was setting it to an int wrong, it was now the wrong value. Finally, in the case of ENV_IS_NOWHERE we must still say that our envionrment is invalid after init for things to continue to function. Fixes: 7938822a6b75 ("env: Drop common init() functions") Tested-by: Marek Vasut <marek.vasut@gmail.com> Reported-by: Marek Vasut <marek.vasut@gmail.com> Reported-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Tom Rini <trini@konsulko.com> --- Changes in v3: - Actually include changes for env/nowhere.c
2017-08-20env: Sort selection of default choicesAndy Shevchenko
It would be easier to catch out which platform is using which default. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-08-16env: Adjust the load() method to return an errorSimon Glass
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>
2017-08-16env: Adjust the get_char() method to return an intSimon Glass
In principle this can fail, e.g. if the index is out of range. Adjust the driver signature to allow returning an error code. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-08-16env: Rename some other getenv()-related functionsSimon Glass
We are now using an env_ prefix for environment functions. Rename these other functions as well, for consistency: getenv_vlan() getenv_bootm_size() getenv_bootm_low() getenv_bootm_mapsize() env_get_default() Suggested-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-16env: Rename getenv_hex(), getenv_yesno(), getenv_ulong()Simon Glass
We are now using an env_ prefix for environment functions. Rename these for consistency. Also add function comments in common.h. Suggested-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-16env: Rename getenv/_f() to env_get()Simon Glass
We are now using an env_ prefix for environment functions. Rename these two functions for consistency. Also add function comments in common.h. Quite a few places use getenv() in a condition context, provoking a warning from checkpatch. These are fixed up in this patch also. Suggested-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-15env: Drop saveenv() in favour of env_save()Simon Glass
Use the env_save() function directly now that there is only one implementation of saveenv(). Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Denk <wd@denx.de> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-08-15env: Drop env_relocate_spec() in favour of env_load()Simon Glass
This is a strange name for a function that loads the environment. There is now only one implementation of this function, so use the new env_load() function directly instead. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-08-15env: Drop env_get_char_spec()Simon Glass
We only have a single implementation of this function now and it is called env_get_char(). Drop the old function and the weak version. Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-15env: Drop env_init_new()Simon Glass
Now that env_init() is only defined once we can drop the env_init_new() name and just use env_init(). Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-08-15env: Drop unused env_ptr variablesSimon Glass
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>
2017-08-15env: Drop the env_name_spec globalSimon Glass
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>
2017-08-15env: Drop common init() functionsSimon Glass
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>
2017-08-15env: Switch over to use environment location driversSimon Glass
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>
2017-08-15env: Add a new implementation of environment accessSimon Glass
We plan to move to a environment access via drivers for each location where the environment can be stored. Add an implementation for this. So far it is not used, but will be pressed into service in a future patch. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-15env: Convert CONFIG_ENV_IS_IN... to a choiceSimon Glass
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: Simon Glass <sjg@chromium.org> [trini: Move all of the imply logic to default X if Y so it works again] Signed-off-by: Tom Rini <trini@konsulko.com>
2017-08-15env: Create a location driver for each locationSimon Glass
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>
2017-08-15env: Rename nand env_location to nand_env_locationSimon Glass
We want to use this name for all environment drivers. Update the nand driver to use a more specific name. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-08-15env: Add an enum for environment stateSimon Glass
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>
2017-08-15env: common: Drop env_get_char_memory()Simon Glass
This function is the same as env_get_char_spec() apart from dropping the brackets. Drop the brackets from env_get_char_spec() and use that instead of env_get_char_memory(). Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-08-15env: common: Drop env_get_char_init()Simon Glass
This function does nothing but call env_get_char_spec(). Drop it and adjust its only caller. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-08-15env: common: Factor out the common env_valid checkSimon Glass
The check for gd->env_valid is used in both the 'if' and 'else' part of env_get_char(). Move it into that function instead for simplicity. Drop that code from the two leaf functions. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-08-15env: common: Drop env_get_addr()Simon Glass
This function is not used anywhere other than env_get_char(). Move the code into that function. Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-15env: common: Make env_get_addr/get_char_memory() staticSimon Glass
These functions are not used outside this file. Make them static and order them to avoid forward declarations. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-08-15env: Use tabs in ENV_IS_IN_FATSimon Glass
Tidy up the formatting of this option. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-15Move environment files from common/ to env/Simon Glass
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>