From 4415f1d1f1c57d43f6bc8ff156554c2b2da45b52 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 3 Aug 2017 12:21:58 -0600 Subject: env: Create a location driver for each location 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 --- env/ubi.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'env/ubi.c') diff --git a/env/ubi.c b/env/ubi.c index 542371df8f..d91fdbaa4a 100644 --- a/env/ubi.c +++ b/env/ubi.c @@ -177,3 +177,11 @@ void env_relocate_spec(void) env_import(buf, 1); } #endif /* CONFIG_SYS_REDUNDAND_ENVIRONMENT */ + +U_BOOT_ENV_LOCATION(ubi) = { + .location = ENVL_UBI, + .get_char = env_get_char_spec, + .load = env_relocate_spec, + .save = env_save_ptr(saveenv), + .init = env_init, +}; -- cgit v1.2.3