currently pawing my way through the mechanics of u-boot environment, and noticed that a small number of boards support:
$ grep -r PPCENV * common/env_embedded.c:#if defined(CONFIG_SYS_USE_PPCENV) && \ common/env_embedded.c:# define __PPCENV__ __attribute__ ((section(".ppcenv"))) common/env_embedded.c:# define __PPCENV__ /*XXX DO_NOT_DEL_THIS_COMMENT*/ common/env_embedded.c:# define __PPCENV__ __attribute__ ((section(".text"))) common/env_embedded.c:env_t redundand_environment __PPCENV__ = { include/configs/TQM823M.h:#define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */ include/configs/TQM855L.h:#define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */ include/configs/TQM866M.h:#define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */ include/configs/TQM850L.h:#define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */ include/configs/TQM860M.h:#define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */ include/configs/TQM850M.h:#define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */ include/configs/TQM862M.h:#define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */ include/configs/TQM862L.h:#define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */ include/configs/inka4x0.h:#define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */ include/configs/TQM855M.h:#define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */ include/configs/TQM860L.h:#define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */ include/configs/TQM823L.h:#define CONFIG_SYS_USE_PPCENV /* Environment embedded in sect .ppcenv */ include/env_default.h:env_t environment __PPCENV__ = { $
what is the rationale for that small selection of boards to put their environment in a separate section? if i keep reading, i'm sure it will become obvious.
rday