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README: Document CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG 

This option is intended to be set by boards which will set the
board_name and board_rev environment variables.  These are to be used
when the U-Boot binary can support more than one board type at run-time
and the user needs an easy way (for example for scripting to determine
what device tree to load) to determine what board they are on.

Signed-off-by: Tom Rini <trini@ti.com>
utp
Tom Rini 2012-10-24 07:28:16 +00:00
parent b4a2e43570
commit 7e27f89fdf
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@ -2311,6 +2311,12 @@ CBFS (Coreboot Filesystem) support
- CONFIG_SYS_VENDOR
- CONFIG_SYS_SOC
CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
Define this in order to add variables describing certain
run-time determined information about the hardware to the
environment. These will be named board_name, board_rev.
- DataFlash Support:
CONFIG_HAS_DATAFLASH