env: Access Environment in SPI flashes before relocation
Enable the new Kconfig option ENV_SPI_EARLY if you want to use Environment in SPI flash before relocation. Call env_init() and than you can use env_get_f() for accessing Environment variables. Signed-off-by: NHeiko Schocher <hs@denx.de> Reviewed-by: NSimon Glass <sjg@chromium.org>
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