A significant number of omap3 boards use CONFIG_ENV_ADDR and CONFIG_ENV_OFFSET together.
When CONFIG_ENV_IS_IN_FLASH is defined, environment.h appears to define CONFIG_ENV_ADDR as CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET if CONFIG_ENV_ADDR is not defined, so it assumes that CONFIG_ENV_OFFSET is defined.
It then tries to define CONFIG_ENV_OFFSET as CONFIG_ENV_ADDR - CONFIG_SYS_FLASH_BASE if CONFIG_ENV_OFFSET is not defined, so it assumes that CONFIG_ENV_ADDR is defined, the finally there is an error case only when neither are defined.
Since it seems like these should be two different values, can/should we remove one of them when they are both set to the same value? Is one preferred over another?
MTD parts shows the u-boot-env listed as an offset into NAND, so using CONFIG_ENV_OFFSET would be somewhat consistent to me.
adam