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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> |
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| .. | ||
| attr.c | ||
| callback.c | ||
| common.c | ||
| dataflash.c | ||
| eeprom.c | ||
| embedded.c | ||
| ext4.c | ||
| fat.c | ||
| flags.c | ||
| flash.c | ||
| Kconfig | ||
| Makefile | ||
| mmc.c | ||
| nand.c | ||
| nowhere.c | ||
| nvram.c | ||
| onenand.c | ||
| remote.c | ||
| sata.c | ||
| sf.c | ||
| ubi.c | ||