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env: Handle write-once ethaddr and serial# generically

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Use the variable access flags to implement the protection for ethaddr
and serial# instead of hard-coding them.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Joe Hershberger
2012-12-11 22:16:37 -06:00
committed by Tom Rini
parent 9d8d661d7f
commit 1d6cd0a3f6
3 changed files with 22 additions and 36 deletions
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22
include/env_flags.h
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@@ -53,7 +53,29 @@ enum env_flags_varaccess {
#define CONFIG_ENV_FLAGS_LIST_STATIC ""
#endif
#ifdef CONFIG_CMD_NET
#ifdef CONFIG_ENV_OVERWRITE
#define ETHADDR_FLAGS "ethaddr:ma,"
#else
#ifdef CONFIG_OVERWRITE_ETHADDR_ONCE
#define ETHADDR_FLAGS "ethaddr:mc,"
#else
#define ETHADDR_FLAGS "ethaddr:mo,"
#endif
#endif
#else
#define ETHADDR_FLAGS ""
#endif
#ifndef CONFIG_ENV_OVERWRITE
#define SERIAL_FLAGS "serial#:so,"
#else
#define SERIAL_FLAGS ""
#endif
#define ENV_FLAGS_LIST_STATIC \
ETHADDR_FLAGS \
SERIAL_FLAGS \
CONFIG_ENV_FLAGS_LIST_STATIC
#ifdef CONFIG_CMD_ENV_FLAGS