tree 0f3a924e4cbb4fc7be45d8bcb4de8dda3d72ed71
parent be354c1a214daeedb24d7716308432f188d0004c
author Wu, Josh <Josh.wu@atmel.com> 1404214213 +0800
committer Tom Rini <trini@ti.com> 1404776581 -0400

README: document CONFIG_ENV_IS_IN_SPI_FLASH

The option can be used to save the environment in spi flash.
Implementation code is already exist in command/env_sf.c. But
the documentation is missing.

This patch add the details for this option to the README file.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>